Wound Vac Therapy (Negative Pressure Wound Therapy / NPWT)

How wound vac therapy (negative pressure wound therapy / npwt) works

Healix360 supports access to advanced mobile wound care services for patients throughout our coverage area. Services are delivered by licensed physicians and nurse practitioners experienced in the evaluation and management of chronic and complex wounds. Care is coordinated and provided directly to patients in private residences, assisted living communities, and skilled nursing facilities. NPWT works on multiple physiological levels simultaneously. The vacuum (typically set between -75 to -125 mmHg) forcefully draws the wound edges together (macro-deformation). At a cellular level, the suction stretches the individual cells (micro-deformation), tricking them into rapidly multiplying. Furthermore, the system continuously evacuates inflammatory wound fluid, reduces localized edema, and promotes the rapid formation of healthy red granulation tissue.

When it may be used

A licensed clinician determines whether this treatment is appropriate after evaluating the wound and the patient's medical history.

• Deep cavity wounds, such as Stage 3 and Stage 4 pressure ulcers.
• Dehisced (opened) post-surgical incisions.
• Severe traumatic wounds and complex amputation sites.
• Preparation of a wound bed prior to skin grafting or application of cellular products.

When it may not be appropriate

Treatment decisions are individualized. Potential contraindications and precautions may include:

• Wounds with exposed vital organs, unprotected blood vessels, or exposed nerves.
• Untreated osteomyelitis (bone infection).
• Presence of necrotic tissue with eschar (the wound must be debrided first).
• Malignancy in the wound bed.

What to expect

Our clinician will accurately cut a specialized foam dressing to fit exactly inside your wound, seal it with a clear drape, and attach the suction tube. When the machine is turned on, you will see the dressing shrink down tightly (like vacuum-packing). You must keep the lightweight, portable pump running 24/7. The dressing is typically changed 2 to 3 times a week by our clinicians.

Evidence and clinical context

Extensive clinical data, including numerous randomized controlled trials, demonstrate that NPWT significantly accelerates the rate of granulation tissue formation, reduces wound volume faster than standard moist wound care, and effectively manages high-volume exudate in complex acute and chronic wounds.

Frequently Asked Questions

Is the wound vac noisy?

Modern portable NPWT pumps are designed to be very quiet. You may hear a faint hum when the machine is actively adjusting pressure, but it should not disrupt sleep or daily activities.

Can I shower with a wound vac on?

Typically, yes. The clear drape sealing the wound is water-resistant. However, you must disconnect the electronic pump from the tubing prior to showering. Your clinician will provide specific instructions.

Does changing the wound vac dressing hurt?

The foam can sometimes adhere to the newly forming tissue. Our clinicians often use specialized non-adherent contact layers or instill saline to soak the foam prior to removal, ensuring the process is as comfortable as possible.

How long will I need to wear it?

Duration varies from a few weeks to a few months. The goal of NPWT is usually to fill in a deep cavity. Once the wound is shallow, we transition to a different advanced therapy to finish the healing process.

What happens if the alarm goes off?

The machine has alarms for blockages, low battery, or air leaks (loss of suction). You will receive comprehensive training on how to troubleshoot minor issues, and our team is always available for support.