VAC Dressing (Negative Pressure Wound Therapy): questions and answers
This library answers common questions about VAC dressing, also known as negative pressure wound therapy, at Jaipur Hospital. It explains what to expect before, during, and after treatment.
Starting therapy
Learn how the therapy is set up and what happens during the first visit.
What does negative pressure wound therapy involve?
In short
Negative pressure wound therapy at Jaipur Hospital uses a vacuum device to remove fluid and bacteria from a wound. A foam or gauze dressing is placed on the wound, sealed with an adhesive film, and connected to a pump that creates controlled suction. This helps the wound shrink and encourages healthy tissue to grow.
In detail
The procedure starts with thorough cleaning and debridement of the wound. Sterile foam is cut to fit, a fenestrated tube is embedded in the foam, and the area is sealed airtight with adhesive tape. The tube connects to a vacuum pump with a collection canister.
The machine delivers continuous or intermittent suction, typically between 50 and 125 mmHg. This negative pressure removes excess fluid, reduces swelling, lowers bacterial load, improves blood flow, and stimulates granulation tissue and new blood vessel formation. Dressings are usually changed every two to three days.
The therapy can be used for open wounds, complex acute wounds, or as preparation for skin grafts and flaps. It is also applied on closed surgical incisions to prevent complications.
A common belief
Many people think it is just a fancy bandage.
What actually happens
In fact, the controlled negative pressure actively changes the wound environment by reducing swelling, improving blood flow, and stimulating new tissue growth at a cellular level.
Your next step at Jaipur Hospital
Your surgeon will assess your wound and decide if this therapy is suitable. If approved, the first application takes about 30 to 60 minutes under local anaesthesia or sedation. You may stay for day care or one to three nights.
Dressing changes continue every two to three days for several weeks. The typical cost per session ranges from ₹5,000 to ₹15,000.
Who is likely to benefit from negative pressure wound therapy?
In short
Patients with complex, non-healing wounds, open fractures, dehisced surgical wounds, diabetic foot ulcers, or large wounds needing preparation for grafts or flaps may benefit from negative pressure wound therapy at Jaipur Hospital. It is also used on closed incisions in high-risk patients to prevent infection and seroma.
In detail
Evidence shows this therapy helps wounds that are slow to heal due to poor blood supply, infection, or underlying conditions like diabetes. It reduces wound volume, promotes granulation tissue, and lowers bacterial load.
In studies, it lowered surgical site infection rates and seroma formation compared with standard dressings. It is used for open abdominal wounds, dehisced sternal wounds after cardiac surgery, and lower limb open fractures.
For closed incisions, incisional negative pressure wound therapy is applied immediately after surgery in patients at high risk of wound complications.
The therapy is not suitable for everyone; wounds with untreated osteomyelitis, exposed blood vessels or organs, malignancy in the wound, or necrotic tissue with eschar need evaluation first.
A common belief
It is not for every wound.
What actually happens
Wounds with active untreated bone infection, exposed major vessels, or cancer in the wound bed need different treatment first. A proper surgical assessment is essential before starting.
Your next step at Jaipur Hospital
Your surgeon will review your wound type, medical history, and overall health to decide if you are a candidate. If suitable, treatment can start after a consultation. Sessions last 30 to 60 minutes with dressing changes every two to three days. Typical cost per session is ₹5,000 to ₹15,000.
Do I need a diagnosis or a doctor's referral before starting negative pressure wound therapy?
In short
Yes, a proper diagnosis and a surgeon's assessment are required before starting negative pressure wound therapy at Jaipur Hospital. The therapy is a medical treatment applied under clinical supervision, not a self-care product. Your surgeon will confirm the wound type, check for contraindications, and plan the pressure settings and dressing schedule.
In detail
Negative pressure wound therapy involves placing a sealed dressing connected to a vacuum pump. It is used for specific indications such as complex open wounds, diabetic foot ulcers, open fractures, and high-risk closed incisions.
Certain conditions make it unsafe, including untreated osteomyelitis, exposed blood vessels or anastomotic sites, malignancy in the wound, and necrotic tissue with eschar.
A surgeon must evaluate the wound bed, ensure adequate debridement and haemostasis, and decide the appropriate pressure level, typically between 50 and 125 mmHg. The device settings, dressing change frequency, and duration of therapy are all tailored to the wound's response. Without a medical assessment, there is a risk of missing a contraindication or delaying necessary surgical intervention.
A common belief
Some patients think they can rent a device and apply it at home.
What actually happens
Without proper debridement, pressure setting, and monitoring, the therapy can miss deep infection, damage tissue, or delay needed surgery.
Your next step at Jaipur Hospital
You can book a consultation directly at Jaipur Hospital without an external referral. The surgical team will examine your wound, order any needed tests, and discuss the treatment plan. The first session takes 30 to 60 minutes under local anaesthesia or sedation. Dressing changes continue every two to three days. Typical cost per session is ₹5,000 to ₹15,000.
Sessions and home practice
Find out how often dressings are changed and how to manage the device at home.
What happens during the first session of negative pressure wound therapy?
In short
During the first session at Jaipur Hospital, your surgeon cleans the wound thoroughly, removes dead tissue, and ensures bleeding is controlled. A sterile foam or gauze dressing is cut to fit the wound, a fenestrated tube is placed in the foam, and the area is sealed with an adhesive film. The tube connects to a vacuum pump and canister.
In detail
The procedure takes 30 to 60 minutes under local anaesthesia or sedation. After debridement and haemostasis, the foam dressing is applied. The fenestrated tube is embedded in the foam and the wound is sealed airtight with adhesive tape.
The tube connects to a vacuum pump with a fluid collection container. The machine is programmed to deliver continuous or intermittent suction, usually between 50 and 125 mmHg.
The negative pressure draws wound fluid into the canister, reduces swelling, lowers bacterial load, and stimulates granulation tissue. You may stay for day care or one to three nights depending on the wound complexity and your overall health. The dressing remains in place for two to three days before the first change.
A common belief
It is not just sticking on a bandage.
What actually happens
The wound must be thoroughly debrided and haemostasis achieved first. The seal must be airtight for the suction to work, and the pressure setting is chosen specifically for your wound type.
Your next step at Jaipur Hospital
After the first application, you will return for dressing changes every two to three days. Each session costs typically ₹5,000 to ₹15,000. The total number of sessions depends on how your wound responds. Your surgeon will monitor progress at each change.
How long does a negative pressure wound therapy session last?
In short
A negative pressure wound therapy session at Jaipur Hospital typically lasts 30 to 60 minutes. This includes wound cleaning, debridement if needed, application of the foam dressing, sealing, and connecting the vacuum device. The first session may take the full hour, while subsequent dressing changes can be quicker.
In detail
The procedure time covers thorough wound preparation, which is essential for the therapy to work. The surgeon removes non-viable tissue, ensures haemostasis, cuts the foam to fit the wound contours, embeds the fenestrated tube, and creates an airtight seal with adhesive film.
The pump is then programmed to the prescribed pressure, usually between 50 and 125 mmHg. Once the device is running and the seal is confirmed, the session ends. The dressing stays in place continuously for two to three days.
You may be in the hospital for day care or stay one to three nights for the initial application, depending on the wound and your health.
Subsequent dressing changes are done in the outpatient department or at home with a visiting nurse, each taking a similar amount of time.
A common belief
The time is not just for putting on a dressing.
What actually happens
Proper debridement, haemostasis, and an airtight seal are critical. If the seal leaks, the therapy does not work. That is why each change is done carefully by trained staff.
Your next step at Jaipur Hospital
Plan for about an hour per visit. Dressing changes occur every two to three days for several weeks. The typical cost per session is ₹5,000 to ₹15,000. Your surgeon will advise on the expected total duration at your consultation.
How many sessions might I need, and how often should I attend for negative pressure wound therapy?
In short
The number of sessions varies with the wound. At Jaipur Hospital, dressings are changed every two to three days, and therapy continues for weeks until the wound is ready for closure or heals. Your surgeon will estimate the likely duration after assessing your wound.
In detail
Negative pressure wound therapy is not a fixed-course treatment. The dressing stays on continuously, with changes every two to three days.
In studies, median healing time was shorter with this therapy than with moist dressings, but the exact number of changes depends on wound size, depth, cause, and your overall health. For complex wounds, therapy may run for several weeks.
For incisional use on closed surgical wounds, the device may stay in place for five to seven days. Each change is a session. The typical cost per session is ₹5,000 to ₹15,000.
Your surgeon reviews progress at every change and decides when to stop or transition to another treatment such as a skin graft.
A common belief
Unlike a course of antibiotics, this therapy is adjusted in real time.
What actually happens
A wound that looks smaller at one change may need more time if granulation tissue is not healthy. The surgeon decides at each visit whether to continue, adjust pressure, or switch to surgical closure.
Your next step at Jaipur Hospital
Expect visits every two to three days. The total number of sessions cannot be fixed in advance. Your surgeon will give a clearer picture after the first assessment. Typical cost per session is ₹5,000 to ₹15,000.
Will my negative pressure wound therapy programme be individualised for my condition and fitness?
In short
Yes, every negative pressure wound therapy plan at Jaipur Hospital is tailored to your wound type, size, location, cause, and overall health. The surgeon chooses the pressure setting, dressing type, change frequency, and duration based on how your wound responds at each visit.
In detail
The therapy is adjusted in real time. Pressure can range from 50 to 125 mmHg, continuous or intermittent. Foam or gauze is cut to fit the wound contours. For open wounds, the goal is granulation and volume reduction.
For closed incisions, the device is applied prophylactically for a set period. Patients with diabetes, vascular disease, or on steroids may need closer monitoring. The surgeon also considers your mobility, nutrition, and ability to manage the device if you go home with it.
Some patients stay in hospital for a few nights; others manage as day care with outpatient changes. The programme evolves with the wound, not a fixed protocol.
A common belief
A standard pressure of 125 mmHg is common, but some wounds need lower pressure or intermittent cycles.
What actually happens
The foam shape, seal technique, and duration all change as the wound changes. A fixed recipe does not work for complex wounds.
Your next step at Jaipur Hospital
Your surgeon will design the initial plan at the first consultation and modify it at each dressing change. Typical cost per session is ₹5,000 to ₹15,000.
Should negative pressure wound therapy hurt, and what level of discomfort is acceptable?
In short
The therapy itself applies suction, which can feel tight or pulling. Dressing changes may cause discomfort when the foam is removed. Jaipur Hospital uses local anaesthesia or sedation for the first application and can give pain relief before changes. Tell your nurse or surgeon if discomfort is severe.
In detail
Evidence notes that NPWT is generally well tolerated, but some studies report blister formation around the wound edges, especially near joints like the knee. The suction can cause a sensation of tightness. During dressing changes, removing adherent foam can be uncomfortable.
The team can pre-medicate you, use non-adherent layers, or adjust the pressure. Severe pain, new bleeding, or increasing redness should be reported immediately. The alarm on the device signals loss of suction or low battery, not pain.
A common belief
Many patients expect no sensation at all.
What actually happens
The suction creates a pulling feeling. Dressing removal can sting. Blisters can form at the edges. Good communication with the team allows them to adjust pressure, change the foam type, or give pain relief before changes.
Your next step at Jaipur Hospital
Discuss pain management with your surgeon before starting. Take prescribed analgesics before dressing changes if advised. Report any sharp or worsening pain. Sessions are every 2 to 3 days.
Which symptoms mean I should stop an exercise and seek advice during VAC dressing therapy?
In short
During VAC dressing therapy at Jaipur Hospital, you should stop any exercise and contact your care team if you notice bright red bleeding from the wound, a sudden increase in pain that is not relieved by prescribed medication, fever above 38°C, a foul smell from the dressing, the vacuum alarm sounding continuously, or the dressing becoming loose or detached. These signs may mean the seal is broken or an infection is starting.
In detail
The VAC device applies controlled negative pressure to remove fluid and encourage granulation tissue. If the seal breaks, the therapy stops working and bacteria can enter. Bleeding may indicate the foam is adhering to fragile tissue or a vessel is exposed.
Fever and foul odour are classic signs of infection. The alarm alerts you to loss of suction, low battery, or a full canister. Any of these changes mean the wound environment is no longer controlled and needs immediate review by the surgical team.
A common belief
Many people think a little discomfort or a beeping pump is normal.
What actually happens
In fact, these are early warnings that the seal is lost or infection may be starting. Ignoring them can delay healing.
Your next step at Jaipur Hospital
Keep the device on at all times except during dressing changes, which are usually every two to three days. Do not adjust the pressure setting yourself. If any warning symptom appears, call the hospital or visit the emergency department straight away. Your surgeon will review the wound at each dressing change and decide how long therapy should continue.
Progress and long-term recovery
Understand how healing is tracked and what to expect as the wound closes.
How soon should I notice an improvement with VAC dressing therapy?
In short
With VAC dressing therapy at Jaipur Hospital, many patients see the wound look cleaner and smaller within the first week, but the exact timing depends on the wound type, size, and your overall health. Studies show median healing time can be several weeks shorter than with standard dressings, yet individual results vary.
In detail
Negative pressure removes excess fluid, reduces swelling, lowers bacterial load, and stimulates granulation tissue and new blood vessel growth.
In research, the hazard ratio for faster healing with NPWT compared with moist dressings was about 1.8 to 1.9, meaning healing occurred nearly twice as fast on average. However, chronic wounds, diabetic foot ulcers, and wounds with exposed bone or hardware may take longer. Your surgeon assesses progress at each dressing change, usually every two to three days.
A common belief
Some people expect the wound to close in days.
What actually happens
Evidence shows NPWT speeds healing compared with standard dressings, but it is not instant. Chronic or complex wounds still need time and regular monitoring.
Your next step at Jaipur Hospital
Expect dressing changes every two to three days for several weeks. The device runs continuously; you keep it on day and night. Improvement is tracked by wound measurements, photographs, and the amount of fluid in the canister. If the wound does not show healthy granulation tissue after two weeks, the plan may be adjusted.
How will progress be measured during VAC dressing therapy?
In short
At Jaipur Hospital, progress during VAC dressing therapy is measured at each dressing change, typically every two to three days. The surgical team records wound dimensions, depth, the amount and type of exudate, the appearance of granulation tissue, and the volume of fluid collected in the canister. Photographs may be taken for comparison.
In detail
Negative pressure wound therapy works by removing fluid, reducing oedema, and stimulating granulation and angiogenesis. Objective tracking lets the team see if the wound is moving through the expected phases: less exudate, healthy pink granulation tissue filling the defect, and shrinking wound edges.
Studies report that NPWT reduces wound volume more effectively than conventional dressings. The canister volume gives a daily measure of fluid removal. Wound tracing or digital planimetry provides surface area reduction. These data guide decisions on continuing, adjusting, or stopping therapy.
A common belief
Patients often think feeling better means healing.
What actually happens
But a wound can feel fine while still having poor granulation or hidden fluid. Objective measurements catch problems early.
Your next step at Jaipur Hospital
You will attend the hospital or clinic for each dressing change. The nurse or surgeon cleans the wound, applies new foam, and reseals the dressing. They note changes in size, depth, and tissue quality.
If granulation tissue is not improving after two weeks, the surgeon may change the pressure setting, switch to instillation VAC, or plan surgical closure.
What happens if my pain or other symptoms get worse during VAC dressing therapy?
In short
If your pain or other symptoms worsen during VAC dressing therapy at Jaipur Hospital, contact the surgical team immediately. Increased pain can mean the foam is sticking to sensitive tissue, the pressure is too high, or an infection is developing. Other warning signs include fever above 38°C, spreading redness, a foul smell, bright bleeding, or the vacuum alarm sounding continuously. These changes need urgent review.
In detail
The VAC device creates a controlled environment that promotes healing by removing fluid and stimulating granulation tissue. When the seal breaks or infection enters, that environment is lost.
Studies note that blister formation around the dressing edges can occur, especially near joints, and may cause discomfort. Pain that is not relieved by prescribed medication, or new symptoms like fever and odour, suggest the wound bed is no longer stable.
The surgical team can adjust the pressure setting, change the foam type, add a protective layer, or switch to instillation VAC with topical solution if infection is suspected. Early intervention prevents setbacks.
A common belief
Some patients wait a day or two, hoping it will settle.
What actually happens
Delaying lets infection or seal loss get worse, which can add weeks to healing. Early action keeps therapy effective.
Your next step at Jaipur Hospital
Do not turn off the device or change the pressure yourself. Keep the device running and call the hospital or visit the emergency department. The team will assess the wound at an unscheduled dressing change, review your pain relief, and decide on the next step. Dressing changes continue every two to three days unless the plan changes.
When should I return to the doctor for further investigation during VAC dressing therapy?
In short
During VAC dressing therapy at Jaipur Hospital, you return for scheduled dressing changes every two to three days. You should also come back sooner if the vacuum alarm sounds continuously, the dressing becomes loose or leaks, you develop a fever above 38°C, notice bright red bleeding, a foul smell, spreading redness, or pain that is not controlled by your prescribed medication. These signs mean the wound needs immediate assessment.
In detail
The therapy relies on a sealed, controlled environment. Any break in the seal stops the negative pressure, allows bacteria in, and can delay healing. Studies show that loss of suction, infection, or foam adherence to fragile tissue are the main reasons for unscheduled reviews.
The surgical team checks wound dimensions, granulation tissue quality, and fluid output at each visit. If granulation tissue is not progressing after two weeks, or if the wound shows signs of deterioration, further investigation such as swab culture, blood tests, or imaging may be ordered. The plan may then shift to instillation VAC, a different foam, or surgical closure.
A common belief
Patients sometimes skip visits when the wound looks clean.
What actually happens
But the seal can fail without obvious signs, and infection can start quietly. Regular checks catch these early.
Your next step at Jaipur Hospital
Keep all scheduled appointments even if the wound looks better. The device runs continuously; do not switch it off. If any warning symptom appears between visits, call the hospital or attend the emergency department. Your surgeon decides how long therapy continues based on wound progress.
Can VAC dressing therapy be combined with medicines, injections, or surgery?
In short
Yes, VAC dressing therapy at Jaipur Hospital is often used alongside other treatments. It can be combined with systemic antibiotics for infection, appropriate pain relief, and medications for underlying conditions like diabetes. It is also used as a bridge to surgery, preparing the wound bed for skin grafts or flap closure, and can be applied over closed incisions after an operation to reduce complications.
In detail
Negative pressure wound therapy removes fluid, reduces bacterial load, and stimulates granulation tissue, creating a healthier wound bed. Studies show it is used as an adjunct for temporary closure before definitive reconstructive procedures such as skin grafts and flaps.
Instillation VAC (VAC Veraflo) allows periodic topical solution instillation, which can deliver antiseptics or antibiotics directly to the wound. Prophylactic incisional NPWT (Prevena) is applied on closed surgical incisions to lower infection and seroma rates. The surgical team coordinates the timing of dressing changes with any planned operations or medication adjustments.
A common belief
Some people think VAC therapy replaces all other care.
What actually happens
In reality, it is part of a combined plan. Stopping antibiotics or delaying surgery because you are on VAC can slow recovery.
Your next step at Jaipur Hospital
Your surgeon will review all your current medicines and decide if any need to change. Dressing changes continue every two to three days. If surgery is planned, the VAC device may be paused briefly in the operating theatre and reapplied afterwards. Do not start or stop any medication without discussing it with the team.
Understanding vac dressing (negative pressure wound therapy)
Read a simple explanation of how negative pressure helps wounds heal.
How does the term NPWT relate to negative pressure wound therapy?
In short
NPWT is the standard medical abbreviation for negative pressure wound therapy. At Jaipur Hospital, both terms describe the same treatment: a sealed dressing connected to a vacuum pump that applies controlled negative pressure to a wound. The therapy removes fluid, reduces swelling, and encourages healthy tissue growth.
In detail
Negative pressure wound therapy involves placing an open-cell foam or gauze over the wound, sealing it with an adhesive film, and connecting it to a suction device. The machine delivers continuous or intermittent suction, typically between 50 and 125 mmHg.
NPWT is synonymous with topical negative pressure and vacuum therapy. The branded name VAC (vacuum-assisted closure) is also used interchangeably.
Studies confirm NPWT promotes angiogenesis, granulation tissue formation, and reduces bacterial load and oedema, creating an environment that supports healing in complex acute and chronic wounds.
A common belief
Patients sometimes think NPWT is a newer or different version.
What actually happens
It is not. The terms are used interchangeably in medical notes, research, and conversation.
Your next step at Jaipur Hospital
Your surgeon will use the term NPWT or VAC therapy in your notes and discussions. The procedure takes 30 to 60 minutes to apply, usually under local anaesthesia or sedation. Dressing changes occur every two to three days for several weeks. The typical cost range in India is ₹5,000 to ₹15,000 per session.
How does the term vacuum-assisted closure relate to negative pressure wound therapy?
In short
Vacuum-assisted closure, often shortened to VAC, is a branded name for negative pressure wound therapy. At Jaipur Hospital, the terms are used interchangeably. Both refer to a sealed dressing attached to a vacuum pump that applies controlled negative pressure to remove fluid and promote healing.
In detail
The technique places foam or gauze in the wound, seals it with an adhesive drape, and connects a fenestrated tube to a suction device with a collection canister. The machine delivers continuous or intermittent negative pressure, usually 50 to 125 mmHg.
VAC therapy is a specific commercial system, but the generic therapy is called negative pressure wound therapy or NPWT. Studies describe VAC as an effective method for difficult wounds, reducing wound volume and the need for complex reconstructive procedures.
The principles of fluid removal, oedema reduction, bacterial load decrease, and granulation stimulation are the same regardless of the name used.
A common belief
People often assume VAC is a special upgrade.
What actually happens
It is simply one commercial system. The healing mechanism is identical to generic NPWT.
Your next step at Jaipur Hospital
Your surgeon may write VAC therapy or NPWT in your plan. Application takes 30 to 60 minutes under local anaesthesia or sedation. Dressings are changed every two to three days. The typical price range in India is ₹5,000 to ₹15,000 per session.
How does the term "VAC therapy" relate to negative pressure wound therapy?
In short
VAC therapy is a brand name for negative pressure wound therapy. At Jaipur Hospital, our surgical team uses the term VAC therapy to describe the same vacuum-assisted closure technique that applies controlled suction to a wound. Both terms refer to the same treatment method.
In detail
Negative pressure wound therapy (NPWT) is the generic medical term for therapy that uses a vacuum device to remove fluid and promote healing. VAC stands for vacuum-assisted closure, a specific branded system that became widely used, so the terms are often used interchangeably.
The technique involves placing a foam or gauze dressing over the wound, sealing it with an adhesive film, and connecting it to a suction pump that delivers continuous or intermittent negative pressure, typically between 50 and 125 mmHg. This creates an environment that reduces oedema, lowers bacterial load, improves blood flow, and stimulates granulation tissue and angiogenesis.
A common belief
People often think VAC is a separate or newer technology.
What actually happens
In reality, VAC is one commercial system that became so common its name is used generically, much like a vacuum cleaner being called a Hoover.
Your next step at Jaipur Hospital
Your surgeon will explain the specific device and settings planned for your wound during the consultation. The first application takes about 30 to 60 minutes under local anaesthesia or sedation. Dressing changes are usually needed every two to three days for several weeks. To discuss which system is suitable for you, book a consultation at Jaipur Hospital.
More questions about vac dressing (negative pressure wound therapy)
Get answers to practical questions about daily life with the device.
Why is the wound not healing?
In short
A wound may not heal due to poor blood supply, infection, diabetes, pressure, or the presence of dead tissue. At Jaipur Hospital, our surgical team assesses each factor to find the cause of delayed healing in your case.
In detail
Delayed healing is common in difficult wounds and in elderly patients with comorbidities. Factors include reduced tissue perfusion, bacterial colonisation, persistent inflammation, and mechanical stress on the wound edges.
Negative pressure wound therapy helps by stabilising the wound environment, reducing oedema, lowering bacterial load, improving perfusion, and stimulating granulation tissue and angiogenesis. These changes create conditions that support the natural healing cascade and can prepare the wound for closure or simpler reconstruction.
A common belief
Many patients assume more time or stronger antibiotics will fix it.
What actually happens
In reality, the wound environment itself must be changed — reducing swelling, clearing bacteria, and stimulating blood vessel growth — which is what negative pressure therapy does.
Your next step at Jaipur Hospital
Your surgeon will examine the wound, review your medical history, and may order tests to identify the specific barriers to healing. This assessment usually happens at the first consultation. Once the cause is known, a tailored plan including VAC therapy can be started.
Does the wound need testing for infection or poor blood supply?
In short
Yes, testing for infection and blood supply is a standard part of evaluating a non-healing wound at Jaipur Hospital. The surgical team uses clinical assessment, wound swabs, blood tests and vascular studies to guide treatment decisions.
In detail
Infection and inadequate perfusion are two of the most common reasons wounds fail to heal. Clinical signs such as increasing pain, spreading redness, purulent discharge or a foul odour suggest infection, which is confirmed with wound cultures and blood inflammatory markers.
Poor blood supply is assessed by checking pulses, measuring ankle-brachial pressure index, and sometimes with duplex ultrasound or angiography. Identifying these problems early allows targeted antibiotics, vascular intervention or both before or alongside negative pressure wound therapy.
Studies show that early identification of patients at risk of delayed healing and aggressive intervention reduce morbidity and health-care costs.
A common belief
Some patients think that if a wound looks clean, no tests are needed.
What actually happens
However, deep infection or arterial disease can be present without obvious surface signs. Missing these delays the right treatment and increases the risk of amputation or major reconstruction.
Your next step at Jaipur Hospital
Your surgeon will order the appropriate tests during your first visit. Results are usually available within a few days, after which a definitive plan including debridement, vascular optimisation and VAC therapy if indicated can be started.
How do I know whether dead tissue needs removal?
In short
Dead tissue, called necrotic tissue or slough, is identified by its colour, texture and lack of bleeding. At Jaipur Hospital, the surgical team decides on debridement after directly examining the wound bed.
In detail
Necrotic tissue appears black, brown, grey or yellow and may be hard, stringy or adherent. It does not bleed when touched because it has no blood supply. This tissue harbours bacteria, prevents granulation and blocks the action of negative pressure wound therapy.
Thorough debridement to viable, bleeding tissue is a prerequisite before applying VAC dressings. The method of VAC application includes thorough debridement and adequate haemostasis before placing the foam.
Your surgeon will assess the amount and type of dead tissue and choose sharp, enzymatic, mechanical or autolytic debridement based on the wound characteristics and your overall condition.
A common belief
Patients sometimes think a yellow coating is normal healing tissue.
What actually happens
In fact, that slough feeds bacteria and stops new tissue from forming. Negative pressure therapy cannot work properly through dead tissue, so debridement is a necessary first step.
Your next step at Jaipur Hospital
During your consultation, the surgeon will examine the wound and tell you if debridement is needed. If required, it can often be done at the same visit or scheduled as a short procedure. After debridement, VAC therapy can be started once the wound bed is clean.
How often should dressings be changed, and can this be done at home?
In short
VAC dressings are usually changed every two to three days. At Jaipur Hospital, the first application and early changes are done in the hospital, and later changes may be managed at home or in a clinic depending on your wound and support system.
In detail
The protocol for VAC therapy involves dressing changes every 48 to 72 hours to maintain effective negative pressure, monitor the wound bed and prevent infection. The device delivers continuous or intermittent suction at 50 to 125 mmHg, and the canister collects wound fluid.
In the hospital, nurses ensure a tight seal and assess granulation progress. For patients who are stable, have a reliable caregiver and can manage the portable pump, home-based therapy is possible with regular outpatient reviews.
Some simplified devices are battery-powered and have small canisters or use evaporation, making them easier to use outside the hospital. However, any sign of leakage, bleeding, increased pain or alarm from the device requires immediate clinical attention.
A common belief
Some people assume the pump can stay on for a week or more.
What actually happens
In practice, the seal breaks down, fluid builds up and infection risk rises after 48 to 72 hours. Home use is possible but only after the team confirms you can manage the device and recognise alarms.
Your next step at Jaipur Hospital
Your surgeon will decide the safest setting for your dressing changes based on wound complexity, your mobility and home support. Initial changes are typically inpatient or day-care. If home care is appropriate, the team will train you or your attendant on pump operation and alarm response.
Costs, insurance and your care
Review general information about treatment costs and insurance coverage.
How will appearance, function, and realistic expectations be discussed?
In short
At Jaipur Hospital, your surgeon will discuss the expected wound appearance, functional outcome and realistic timelines during the consultation and at each follow-up visit. The conversation is based on your wound type, overall health and response to therapy.
In detail
Negative pressure wound therapy reduces wound volume, promotes granulation and prepares the wound for closure, which may be spontaneous healing, skin grafting or flap surgery.
Studies show VAC therapy can reduce wound size more effectively than conventional dressings and may lower the need for complex plastic procedures. However, complete healing time varies widely.
In studies of diabetic foot ulcers, median healing was 21 days shorter with NPWT, but many wounds required weeks to months. Functional outcome depends on the wound location, depth and whether underlying structures such as tendons or bone were involved.
Your surgeon will explain what improvement looks like at each stage, what final appearance to expect and any likely limitations in movement or sensation.
A common belief
Patients sometimes expect the wound to close completely within days.
What actually happens
In reality, VAC therapy shrinks the wound and builds healthy tissue, but full closure may take weeks and sometimes needs a skin graft or flap. Function depends on how deep the wound was and what structures were involved.
Your next step at Jaipur Hospital
You will have the opportunity to ask questions at every dressing change and scheduled review. Photographs and wound measurements are used to track progress objectively. If healing stalls, the plan is adjusted promptly.
What qualifications and experience should the treating clinician have for this procedure?
In short
At Jaipur Hospital, VAC therapy is applied by surgeons who have completed recognised surgical training and have experience in complex wound management. The surgical team includes specialists from plastic surgery, orthopaedics and general surgery who regularly manage difficult wounds.
In detail
Applying negative pressure wound therapy requires thorough debridement, adequate haemostasis, correct foam placement, airtight sealing and appropriate pressure settings between 50 and 125 mmHg.
The clinician must recognise when VAC is indicated such as for complex acute wounds, chronic non-healing wounds, open fractures or high-risk closed incisions and when it is contraindicated such as in untreated osteomyelitis, exposed vessels without bridge dressing, or malignancy in the wound.
They must also manage complications like bleeding, infection, foam retention or skin blistering, which occurs more often over bony prominences. The hospital's modular operation theatres and intensive care unit support safe application and monitoring.
A common belief
Some patients think any nurse or doctor can apply the device.
What actually happens
In reality, the surgeon must decide if VAC is appropriate, perform thorough debridement, set the correct pressure and manage complications like bleeding or blistering. That judgement comes from surgical training and wound management experience.
Your next step at Jaipur Hospital
You can ask your surgeon about their specific training and case experience during the consultation. The team will also involve wound care nurses trained in device management and troubleshooting.
What is the expected cost of negative pressure wound therapy in Jaipur?
In short
The typical cost range for negative pressure wound therapy in India is ₹5,000 to ₹15,000 per session. At Jaipur Hospital, the exact amount depends on the wound size, device type, length of therapy and whether you stay as a day-care patient or need admission.
In detail
Each session includes the disposable dressing kit, canister, tubing and the pump rental or use. The price range reflects differences between standard VAC therapy, instillation VAC and incision management systems like Prevena.
Hospital stay may be day care or one to three nights, which affects the total bill. Patients covered under RGHS, MAA Yojana, CGHS or private insurance panels may have part or all of the cost reimbursed according to their policy terms. The hospital provides an estimate after the surgeon assesses the wound and decides the treatment plan.
A common belief
Some patients assume the quoted price covers the entire treatment.
What actually happens
In fact, each dressing change is a separate session and most wounds need several weeks of therapy. Insurance schemes like RGHS, CGHS or MAA Yojana may cover part of the cost, but you should confirm the details with the hospital and your insurer.
Your next step at Jaipur Hospital
During your consultation, the team will give you a detailed cost estimate based on your specific needs and expected duration of therapy. They will also explain what your insurance or government scheme is likely to cover.
What is included in the estimate for VAC dressing therapy, and what might be charged separately?
In short
The typical estimate for VAC dressing therapy at Jaipur Hospital covers the device application, the foam or gauze dressing kit, the canister, and the suction pump use for that session. The price range quoted is ₹5,000 to ₹15,000 per session. This range reflects the complexity of the wound and the type of VAC system used.
In detail
The estimate usually includes the procedure time of 30 to 60 minutes under local anaesthesia or sedation, the initial dressing application, and the disposable kit components.
Separate charges often apply for each subsequent dressing change, which is typically needed every 2 to 3 days for several weeks.
Additional costs may arise from hospital stay if admission of 1 to 3 nights is required, consultant fees, investigations like blood tests or imaging, antibiotics or pain medication, and any surgical debridement performed before VAC application. The final bill depends on the total number of sessions and the patient's overall condition.
A common belief
Many patients assume the estimate covers the whole course.
What actually happens
In reality, dressing changes every 2 to 3 days for weeks are billed separately. Hospital stay, medicines, investigations, and any prior debridement also add to the final amount.
Your next step at Jaipur Hospital
Ask the admissions team for a detailed break-up of the estimate before starting therapy. Confirm how many dressing changes are anticipated and whether home-care visits are an option. Your surgeon will advise on the expected duration at the consultation.
