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Healthcare Professionals

Case reports

25 documented cases from home care and clinical practice, across a wide range of wound types.

Kristof Balliu, RN · MSc Skin Integrity and Wound Management · CEO Yarrow

After Before Compare case 1 before and after

15/05/2025 → 16/06/2025

Case 01 Post-surgical

Supporting Post-Surgical Wound Cleansing Prior to Skin Graft Placement

57-year-old female, healthy and medically literate.

“Supporting wound hygiene throughout the care pathway.”

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Clinical

Large open wound after surgical evacuation of hematoma.

Challenges

Needed consistent hygiene before NPWT and skin graft

Brush solution

Safe cleansing without damaging granulation tissue.

Clinical outcomes & rationale

Gentle yet effective cleansing preserved granulation tissue while maintaining a low bioburden prior to NPWT and skin grafting. This ensured an optimal wound bed, reducing infection risk and supporting successful graft preparation without delaying the surgical care pathway.

Follow-up

15/05/202520/05/202527/05/202516/06/2025

Download case 01 PDF
After Before Compare case 2 before and after

14/11/2024 → 13/03/2025

Case 02 Traumatic

Optimizing Wound Management for a COPD Patient with Limited Pain Tolerance

74-year-old female with advanced COPD, living independently with home care.

“For the first time, wound care didn’t scare me. The brush made a real difference.”

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Clinical

Traumatic leg laceration with hematoma, following surgical treatment after initial infection control.

Challenges

Very low pain tolerance and high anxiety during daily care.

Brush solution

Gentle mechanical cleansing reduced discomfort and improved tolerance.

Clinical outcomes & rationale

The controlled mechanical action of the Yarrow™ woundbrush enabled effective wound cleansing without provoking pain-related stress responses. By minimizing nociceptive stimulation and anxiety, patient cooperation improved, allowing consistent wound hygiene, an essential factor in preventing secondary infection and supporting uninterrupted healing.

Follow-up

14/11/202424/11/202411/12/202413/03/2025

Download case 02 PDF
After Before Compare case 3 before and after

15/02/2025 → 06/04/2025

Case 03 Diabetic

Supporting Post-Amputation Wound Cleansing in a Diabetic Patient

69-year-old male with type 2 diabetes.

“Precise and sterile cleansing made daily care safer in this high-risk diabetic wound.”

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Clinical

Post-surgical wound following toe amputation due to infection.

Challenges

Needed sterile and consistent hygiene to reduce infection risk and support the wound healing in a compromised diabetic patient.

Brush solution

Targeted and sterile wound cleansing that allowed precise hygiene in a small, high-risk surgical area.

Clinical outcomes & rationale

Precise and localized cleansing reduced the microbial load in a small, high-risk surgical wound. This targeted approach supported healthy wound bed formation while minimizing disruption to vulnerable diabetic tissue, contributing to safer daily wound care and infection prevention.

Follow-up

15/02/202502/03/202506/04/2025

Download case 03 PDF
After Before Compare case 4 before and after

15/02/2025 → 05/03/2025

Case 04 Burn

Supporting Burn Wound Cleansing of the Abdominal Area

53-year-old female, otherwise healthy and medically literate.

“Effective hygiene with full respect for fragile tissue.”

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Clinical

Third-degree burn wound to the abdominal area following a domestic accident.

Challenges

Needed gentle yet consistent hygiene to prevent infection and support optimal wound healing without damaging fragile tissue

Brush solution

Sterile, safe, and atraumatic cleansing, ensuring effective hygiene without disturbing newly formed or fragile tissue.

Clinical outcomes & rationale

Atraumatic cleansing allowed removal of debris and exudate while protecting fragile, newly formed tissue. Maintaining effective hygiene without additional tissue trauma supported uninterrupted wound healing and reduced the risk of secondary infection in a high-risk burn wound.

Follow-up

15/02/202526/02/202505/03/2025

Download case 04 PDF
After Before Compare case 5 before and after

15/06/2025 → 28/12/2025

Case 05 Chronic & infected

Supporting Chronic Wound Cleansing After Occupational Injury

45-year-old patient following a workplace accident.

“Reliable cleansing for long-term wound care.”

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Clinical

Chronic wound with delayed healing resulting from a work-related injury, persisting for 8 months prior to referral.

Challenges

Required repeated and effective wound cleansing over an extended period while preserving vulnerable tissue and patient comfort.

Brush solution

Consistent cleansing that supported long-term wound management and helped maintain a stable wound environment.

Clinical outcomes & rationale

Repeated, consistent cleansing maintained a stable wound environment over time while preserving vulnerable tissue. This supported gradual wound progression and allowed long-term management without exacerbating tissue damage or patient discomfort.

Follow-up

15/06/202520/07/202507/11/202528/12/2025

Download case 05 PDF
After Before Compare case 6 before and after

11/10/2024 → 13/01/2025

Case 06 Diabetic

Supporting Wound Care After Minor Toe Amputation in a Diabetic Patient

65-year-old female with type 2 diabetes.

“Precision cleansing supporting safe diabetic foot care.”

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Clinical

Post-operative wound following amputation of the small toe due to diabetic foot complications.

Challenges

Required careful and consistent hygiene in a confined wound area while managing increased healing risks related to diabetes.

Brush solution

Controlled and precise cleansing that supported accurate wound care in narrow anatomical areas without causing tissue stress.

Clinical outcomes & rationale

Controlled mechanical cleansing enabled accurate hygiene in a confined anatomical area, addressing increased infection risk associated with diabetic foot wounds. The stable wound environment supported predictable healing and reliable follow-up without complications.

Follow-up

11/10/202405/11/202409/12/202413/01/2025

Download case 06 PDF
After Before Compare case 7 before and after

20/06/2025 → 03/10/2025

Case 07 Venous

Supporting Cleansing of Venous Leg Ulcer

76-year-old female.

“Gentle cleansing that fits long-term venous wound care.”

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Clinical

Chronic venous wound to the lower leg associated with venous insufficiency.

Challenges

Required regular and effective wound cleansing while managing exudate and fragile periwound skin.

Brush solution

Gentle and controlled cleansing suitable for repeated use in chronic venous wounds.

Clinical outcomes & rationale

Gentle cleansing suitable for frequent use improved wound bed quality and reduced exudate. This supported ongoing compression therapy, critical in venous disease, while maintaining skin integrity in long-term wound management.

Follow-up

20/06/202501/07/202503/10/2025

Download case 07 PDF
After Before Compare case 8 before and after

24/09/2025 → 06/11/2025

Case 08 Post-surgical

Supporting Post-Operative Wound Cleansing After Surgical Site Infection

59-year-old male.

“Consistent cleansing helped regain control of a complex post-surgical wound.”

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Clinical

Post-operative ankle wound following fracture surgery, complicated by wound dehiscence due to infection.

Challenges

Required effective and repeated wound cleansing to control infection while supporting healing in a surgically compromised area.

Brush solution

Controlled and consistent cleansing that supported hygiene in an anatomically challenging location without disrupting healing tissue.

Clinical outcomes & rationale

Effective and repeated cleansing reduced local infection signs while respecting surgically compromised tissue. This balance allowed continued therapy, improved wound control, and gradual closure without disrupting healing structures.

Follow-up

24/09/202502/10/202506/11/2025

Download case 08 PDF
After Before Compare case 9 before and after

21/07/2025 → 09/09/2025

Case 09 Burn

Supporting Cleansing of a Third-Degree Burn Wound of the Upper Leg

82-year-old patient.

“Effective cleansing, even in extensive burn wounds.”

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Clinical

Third-degree burn wound to the upper leg following a thermal injury.

Challenges

Required effective yet controlled wound cleansing to reduce infection risk while protecting vulnerable surrounding tissue.

Brush solution

Balanced cleansing that allowed thorough hygiene over a larger wound surface without excessive mechanical stress.

Clinical outcomes & rationale

Balanced cleansing across a larger wound surface ensured effective hygiene while avoiding excessive mechanical stress. This supported a clean wound environment and prepared the wound for further therapeutic interventions.

Follow-up

21/07/202507/08/202525/08/202509/09/2025

Download case 09 PDF
After Before Compare case 10 before and after

02/08/2024 → 09/09/2025

Case 10 Traumatic

Supporting Cleansing of a Traumatic Ulcer in Fragile Skin

84-year-old female.

“Gentle enough for even the most fragile skin.”

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Clinical

Traumatic ulcer with extremely fragile skin following a minor injury.

Challenges

Required ultra-gentle wound cleansing to prevent further skin damage while maintaining adequate hygiene.

Brush solution

Soft and controlled cleansing that allowed safe hygiene in the presence of highly fragile skin.

Clinical outcomes & rationale

Ultra-gentle mechanical cleansing maintained adequate hygiene without inducing additional skin trauma. This preserved skin integrity while ensuring wound stability and patient comfort in a highly fragile tissue context

Follow-up

02/08/202428/08/202427/08/202509/09/2025

Download case 10 PDF
After Before Compare case 11 before and after

14/11/2025 → 18/12/2025

Case 11 Venous

Supporting Cleansing of a Chronic Venous Ulcer

71-year-old male.

“Reliable cleansing for long-term venous wound care.”

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Clinical

Chronic venous ulcer associated with long-standing venous insufficiency.

Challenges

Required regular wound cleansing to manage exudate and support the healing in a long-term chronic condition.

Brush solution

Gentle and consistent cleansing suitable for repeated use in chronic venous wound care.

Clinical outcomes & rationale

Regular, gentle cleansing supported exudate control and sustained wound bed improvement. This facilitated structured compression therapy and long-term wound management in a chronic disease setting.

Follow-up

14/11/202527/11/202518/12/2025

Download case 11 PDF
After Before Compare case 12 before and after

19/11/2025 → 29/12/2025

Case 12 Chronic & infected

Supporting Wound Cleansing After Necrotizing Soft Tissue Infection

63-year-old male.

“Controlled cleansing in the most challenging wound conditions.”

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Clinical

Extensive ulcer following necrotizing soft tissue infection caused by a flesh-eating bacterium.

Challenges

Required thorough and reliable wound cleansing to manage high infection risk and support the recovery after aggressive tissue damage.

Brush solution

Controlled cleansing that supported effective hygiene in complex wound conditions while respecting vulnerable tissue

Clinical outcomes & rationale

Controlled cleansing addressed high infection risk in a complex wound by maintaining hygiene without further compromising vulnerable tissue. This stability was essential for preventing reinfection and supporting gradual tissue recovery.

Follow-up

19/11/202529/12/2025

Download case 12 PDF
After Before Compare case 13 before and after

12/10/2025 → 18/11/2025

Case 13 Arterial & mixed

Supporting Cleansing of a Complex Arterial Ulcer With Tendon Exposure

86-year-old female.

“Precision cleansing in the most delicate wound situations.”

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Clinical

Arterial ulcer with exposed tendons due to severe arterial insufficiency.

Challenges

Required extremely careful wound cleansing to maintain hygiene while avoiding damage to exposed tendons and surrounding fragile tissue.

Brush solution

Highly controlled and gentle cleansing that enabled precise hygiene in a complex wound with exposed deep structures.

Clinical outcomes & rationale

Highly controlled cleansing maintained hygiene while protecting exposed deep structures. Preserving tendon integrity was critical in supporting multidisciplinary wound management and preventing further deterioration.

Follow-up

12/10/202519/10/202526/10/202518/11/2025

Download case 13 PDF
After Before Compare case 14 before and after

10/07/2025 → 02/09/2025

Case 14 Post-surgical

Supporting Post-Mastectomy Wound Cleansing After Surgical Site Infection Involving Irradiated Tissue

65-year-old female.

“Gentle cleansing helped restore control in a complex post-surgical wound.”

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Clinical

Extensive post-mastectomy wound following surgical site infection in irradiated tissue.

Challenges

Post-operative wound following total mastectomy for breast carcinoma, complicated by wound dehiscence and infection.

Brush solution

Controlled and gentle cleansing that supported hygiene without disrupting vulnerable post-surgical tissue.

Clinical outcomes & rationale

Gentle and controlled cleansing reduced infection signs while preserving post-surgical tissue integrity. This allowed continuation of both oncological treatment and wound care without interruption.

Follow-up

10/07/202517/07/202515/08/202502/09/2025

Download case 14 PDF
After Before Compare case 15 before and after

11/03/2025 → 14/05/2025

Case 15 Chronic & infected

Supporting Cleansing of a Long-Standing Chronic Leg Ulcer With Persistent Biofilm

56-year-old male.

“Targeted cleansing for chronic wounds with persistent biofilm.”

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Clinical

Chronic leg ulcer present for five years, complicated by persistent biofilm.

Challenges

Required repeated and effective wound cleansing to manage long-standing biofilm while supporting a stable wound environment.

Brush solution

Targeted mechanical cleansing that supported biofilm disruption in a chronic wound setting.

Clinical outcomes & rationale

Targeted mechanical cleansing effectively disrupted persistent biofilm, improving wound conditions in a long-standing chronic wound. This enabled continued long-term management where conventional cleansing alone was insufficient.

Follow-up

11/03/202515/04/202514/05/2025

Download case 15 PDF
After Before Compare case 16 before and after

06/02/2025 → 02/03/2025

Case 16 Venous

Supporting Cleansing of a Chronic Venous Ulcer With Persistent Biofilm

96-year-old female.

“Effective cleansing where biofilm is a persistent challenge.”

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Clinical

Chronic venous ulcer complicated by persistent biofilm formation.

Challenges

Required repeated and effective wound cleansing to disrupt biofilm while preserving fragile tissue in an elderly patient.

Brush solution

Controlled mechanical cleansing that supported biofilm disruption while remaining gentle enough for repeated use.

Clinical outcomes & rationale

Mechanical cleansing supported biofilm disruption while remaining gentle enough for repeated use. Reducing biofilm presence improved wound bed quality and supported ongoing healing progression.

Follow-up

06/02/202517/02/202502/03/2025

Download case 16 PDF
After Before Compare case 17 before and after

15/03/2025 → 07/06/2025

Case 17 Arterial & mixed

Supporting Cleansing of a Chronic Mixed-Etiology Ankle Ulcer

75-year-old male patient with known chronic vascular insufficiency.

“Controlled cleansing supported wound closure in a complex mixed arterial–venous ankle ulcer.”

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Clinical

Chronic ulcer located at the ankle, present for several months. The ulcer was caused by a combination of arterial insufficiency due to failure of small capillaries at ankle level (atrophie blanche) and underlying venous insufficiency.

Challenges

Mixed arterial and venous pathology resulted in fragile periwound skin and delayed healing, requiring effective wound hygiene without compromising already impaired microcirculation.

Brush solution

Gentle and controlled mechanical cleansing enabled safe hygiene of the wound surface while respecting vulnerable microvascular tissue.

Clinical outcomes & rationale

Careful mechanical cleansing supported removal of surface debris and exudate without inducing additional ischemic stress. Maintaining a clean wound environment facilitated gradual wound progression and ultimately resulted in complete wound closure. This outcome supported safe continuation of vascular-focused wound management in a complex mixed arterial–venous ulcer.

Follow-up

15/03/202516/04/202524/05/202507/06/2025

Download case 17 PDF
After Before Compare case 18 before and after

28/11/2025 → 27/12/2025

Case 18 Traumatic

Supporting Wound Cleansing in Chronic Post-Traumatic Scar Tissue With Vascular Compromise

40-year-old female with a history of severe lower leg trauma 20 years ago, treated with multiple surgical interventions including flap surgery.

“Gentle cleansing helped maintain control in fragile scar tissue with vascular compromise.”

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Clinical

New onset necrosis developing within long-standing scar tissue, associated with an underlying vascular defect, most likely of venous origin.

Challenges

Compromised vascular supply and fragile scar tissue increased the risk of delayed healing and infection, requiring careful but effective wound hygiene.

Brush solution

Controlled and gentle mechanical cleansing allowed targeted hygiene within vulnerable scar tissue without disrupting compromised tissue structures.

Clinical outcomes & rationale

Gentle, localized mechanical cleansing supported removal of necrotic debris while preserving fragile, poorly perfused scar tissue. Maintaining effective wound hygiene in a compromised vascular environment helped stabilize the wound bed, reduce infection risk, and support safe, ongoing wound management in a complex chronic post-traumatic setting.

Follow-up

28/11/202515/12/202523/12/202527/12/2025

Download case 18 PDF
After Before Compare case 19 before and after

07/05/2025 → 08/07/2025

Case 19 Pressure

Supporting Closure of a Pressure Ulcer at the Achilles Tendon

65-year-old male.

“Consistent daily cleansing supported closure of a long-standing pressure ulcer at the Achilles region.”

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Clinical

Pressure ulcer located at the Achilles tendon region, present for three months prior to initiation of treatment.

Challenges

Sustained pressure at the Achilles area and limited soft tissue coverage increased the risk of delayed healing, requiring consistent wound hygiene without causing additional mechanical stress.

Brush solution

Daily use of controlled mechanical cleansing with the Yarrow™ woundbrush, combined with moist wound healing principles, supported effective and atraumatic wound hygiene.

Clinical outcomes & rationale

Daily gentle mechanical cleansing supported removal of debris and surface contaminants while preserving vulnerable tissue at the Achilles region. Combined with moist wound healing, this consistent hygiene approach stabilized the wound environment and ultimately resulted in complete wound closure after a prolonged non-healing period.

Follow-up

07/05/202528/05/202520/06/202508/07/2025

Download case 19 PDF
After Before Compare case 20 before and after

01/09/2025 → 25/10/2025

Case 20 Traumatic

Supporting Wound Cleansing After Minor Trauma in a Vascularly Compromised Leg

Same 75-year-old male patient as Case Study no. 17, with known chronic arterial and venous insufficiency.

“Gentle, targeted cleansing supported complete wound closure after minor trauma in a vascularly compromised leg.”

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Clinical

Traumatic wound to the shin following minor impact, resulting in skin breakdown in an area with compromised vascular supply.

Challenges

Even minor trauma led to tissue breakdown due to poor microcirculation, requiring precise and atraumatic wound cleansing to prevent deterioration and infection.

Brush solution

Targeted and gentle mechanical cleansing allowed accurate hygiene of the traumatic wound without causing further tissue damage.

Clinical outcomes & rationale

Localized mechanical cleansing maintained effective hygiene and prevented secondary wound enlargement. The stable wound environment supported predictable healing, leading to complete wound closure without complications in a patient with limited vascular reserve.

Follow-up

01/09/202509/09/202525/10/2025

Download case 20 PDF
After Before Compare case 21 before and after

04/09/2025 → 09/01/2026

Case 21 Pressure

Supporting Healing of a Heel Pressure Ulcer After Intensive Care Stay

67-year-old male.

“Combined sharp and mechanical debridement supported sustained wound improvement in a complex heel pressure ulcer.”

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Clinical

Heel pressure ulcer developed following prolonged immobilization during an intensive care unit stay.

Challenges

Heel location and prior critical illness increased the risk of delayed healing, requiring effective debridement and ongoing wound hygiene without compromising surrounding tissue.

Brush solution

Initial sharp debridement was followed by controlled mechanical debridement using the Yarrow™ woundbrush to support the ongoing wound cleansing and maintenance.

Clinical outcomes & rationale

Sequential use of sharp debridement and gentle mechanical cleansing supported effective removal of devitalized tissue while preserving viable structures. Consistent mechanical debridement maintained a clean wound bed and supported progressive wound improvement during ongoing treatment.

Follow-up

04/09/202525/09/202520/11/202509/01/2026

Download case 21 PDF
After Before Compare case 22 before and after

23/06/2025 → 25/10/2025

Case 22 Venous

Supporting Cleansing of a Traumatic Venous Leg Ulcer

78-year-old female

“Gentle, consistent cleansing supported healing of a traumatic venous leg ulcer.”

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Clinical

Venous leg ulcer developing after minor trauma, with impaired venous return contributing to delayed wound healing.

Challenges

Venous insufficiency increased the risk of prolonged exudation and delayed healing, requiring consistent wound hygiene without aggravating fragile periwound skin.

Brush solution

Gentle and controlled mechanical cleansing enabled effective daily wound hygiene while respecting vulnerable venous tissue.

Clinical outcomes & rationale

Consistent mechanical cleansing supported removal of debris and exudate while maintaining skin integrity in a venous-compromised environment. This stable wound environment facilitated predictable wound progression and ultimately resulted in wound closure without complications.

Follow-up

23/06/202512/07/202525/10/2025

Download case 22 PDF
After Before Compare case 23 before and after

20/01/2026 → 15/03/2026

Case 23 Venous

Supporting Management of a Venous Leg Ulcer with Persistent Biofilm

83-year-old female.

“Mechanical debridement helped us regain control over a difficult venous ulcer with persistent biofilm.”

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Clinical

Venous leg ulcer with signs of chronic inflammation and presence of adherent biofilm.

Challenges

Chronic wound environment with persistent biofilm and limited therapy adherence, complicating consistent wound management and delaying healing progression.

Brush solution

Controlled mechanical debridement using the Yarrow™ woundbrush was implemented to disrupt and remove biofilm and support the ongoing wound hygiene.

Clinical outcomes & rationale

Regular mechanical debridement with the Yarrow™ woundbrush supported effective disruption of the biofilm and improved wound bed conditions. Despite inconsistent adherence to therapy, repeated cleansing contributed to better exudate control and gradual wound stabilization.

Follow-up

20/01/202610/02/202618/02/202615/03/2026

Download case 23 PDF
After Before Compare case 24 before and after

13/03/2026 → 03/04/2026

Case 24 Traumatic

Supporting Closure of a Traumatic Wound With the Yarrow™ Woundbrush

60-year-old female.

“Protecting fragile skin while maintaining hygiene was key to closure.”

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Clinical

Traumatic lower leg wound following a fall down the stairs, complicated by fragile skin and impaired healing capacity due to long-term corticosteroid therapy.

Challenges

Very fragile skin, delayed wound healing, high risk of infection, and reduced tissue resilience linked to COPD and chronic cortisone use.

Brush solution

Controlled mechanical cleansing with the Yarrow™ woundbrush was integrated into the wound care regimen to support effective wound hygiene while preserving fragile tissue. The approach focused on gentle and consistent cleansing to reduce bioburden without causing additional trauma.

Clinical outcomes & rationale

Gentle mechanical cleansing maintained a clean wound environment while protecting vulnerable tissue. This supported gradual healing progression and resulted in complete wound closure within approximately 5 to 6 months.

Follow-up

13/03/202618/03/202603/04/2026

Download case 24 PDF
After Before Compare case 25 before and after

05/09/2025 → 25/01/2026

Case 25 Pressure

Supporting Complete Closure of a Heel Pressure Ulcer With Adjunctive NPWT

80-year-old male.

“Combined mechanical cleansing and NPWT supported complete closure of a complex heel pressure ulcer.”

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Clinical

Heel pressure ulcer associated with prolonged pressure and reduced mobility.

Challenges

Heel location, advanced age, and limited tissue padding increased the risk of delayed healing, requiring consistent wound hygiene and advanced wound therapy.

Brush solution

Controlled mechanical cleansing with the Yarrow™ woundbrush was integrated into the wound care regimen to support the effective hygiene while preserving vulnerable tissue, in combination with negative pressure wound therapy (NPWT).

Clinical outcomes & rationale

Gentle and consistent mechanical cleansing supported removal of debris and surface contaminants while maintaining tissue integrity at the heel. In combination with NPWT, this stable wound environment facilitated predictable wound progression and ultimately resulted in complete wound closure within approximately 4.5 months.

Follow-up

05/09/202523/09/202510/10/202525/01/2026

Download case 25 PDF