Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 50
Filtrar
1.
Case Reports Plast Surg Hand Surg ; 11(1): 2342329, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38720883

RESUMO

Reconstructing scalp defects after basal cell carcinoma removal in elderly patients is challenging. This case report emphasizes Matriderm® as a successful alternative, addressing limitations of traditional methods. The application of Matriderm® in resource-limited scenarios adds insights to surgical literature, and its' usage addresses challenges in patients, contributing to surgical knowledge.

2.
Br J Oral Maxillofac Surg ; 62(4): 367-372, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38609744

RESUMO

Integra® (Integra LifeSciences) is a well-known dermal regeneration template used in partial and full-thickness wound reconstruction. It can be applied directly on to vascular tissue to create a bed for a skin graft, which is often placed in a second surgery. We present our experience of its novel use in oral and maxillofacial surgery patients, using it directly on bone and cartilage (avascular tissue) without further skin grafting. Patients who required full-thickness excision of lesions down to bone or cartilage and who were treated using Integra® were included. After scalp or ear lesion resection, the collagenous dermal layer of Integra® was placed directly on to bone or cartilage and, along with its outer silicone epidermal layer, secured to the defect with absorbable sutures and a bolster dressing. The wounds were kept dry for 14 days, at which point the dressing and silicone were removed and patients continued regular wound care. Seventeen patients were included, 15 of whom had squamous cell carcinoma. One was lost to follow up. The rest achieved complete healing of the defect. Histology showed epidermis developing on the Integra® surface and at one year, the appearance of normal scarred skin. This novel approach could redefine the uses of Integra®, avoiding the need for free-flap surgery or skin grafting when reconstructing large defects. Further resection of close margins or recurrence is easier after reconstruction using dermal regeneration material than after reconstruction with a local or free flap.


Assuntos
Sulfatos de Condroitina , Colágeno , Humanos , Colágeno/uso terapêutico , Sulfatos de Condroitina/uso terapêutico , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Carcinoma de Células Escamosas/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Cicatrização/fisiologia , Couro Cabeludo/cirurgia , Idoso de 80 Anos ou mais , Pele Artificial , Adulto , Transplante de Pele/métodos , Cartilagem/transplante
3.
Int J Surg Case Rep ; 115: 109208, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38199019

RESUMO

INTRODUCTION: Dermal Regeneration Templates may be used in the reconstruction of large skin defects after cutaneous malignancy excisions. Bowen's disease (BD; squamous cell carcinoma in situ) is a common and persistent condition that can be related to chronic sun damage, and consequently, is usually located on the head and neck area or on the lower limbs. Literature does not provide clear guidelines on the treatment of BD, limiting itself to describing a wide range of different methods that can be used, including surgery, laser therapy or topical options. However, large lesions tend to scar in the post-operative setting and hence are difficult to treat surgically. PRESENTATION OF CASE: In this paper the authors present a case of a male in his 60s, ASA III score, who presented with a history of histopathologically-confirmed squamocellular carcinoma in the neck and supraclavicular region. Due to recurrent carcinomas the patient was treated with an extensive skin excision and a successful reconstruction using a Dermal Regeneration Template. The work has been reported in line with the SCARE criteria. DISCUSSION: The main surgical problem caused by BD is reaching complete oncological resection and, consequently, the need for extensive skin excisions. CONCLUSION: The use of the skin substitute resulted in a satisfactory functional and aesthetic result, with total clearance and no recurrence observed after 16 months.

4.
Orbit ; : 1-7, 2023 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-37676648

RESUMO

The IntegraⓇ Dermal Regeneration Template (DRT) is a bioengineered dermal substitute that is becoming increasingly popular in the field of reconstruction. Its unique properties allow for immediate wound closure while providing a scaffold for tissue regeneration. Currently, it is commonly used to treat burns, ulcers, and complex wounds. In the setting of traumatic periocular tissue loss, only two prior reports have been published on its use for primary reconstruction. We present our institution's experience with a series of four young patients who received primary reconstruction with IntegraⓇ DRT as a full-thickness skin substitute for their large traumatic periorbital skin defects.

5.
Head Neck ; 45(11): 2967-2974, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37728411

RESUMO

The clinical use of Integra™ has expanded to include scalp reconstruction since its FDA approval in 1996. Integra™, or dermal regeneration template, can be utilized in patients who are elderly with multiple medical comorbidities. Well-established Integra™ techniques utilize skin grafting 1-2 weeks following evidence of template vascularity. Most studies show the time to graft placement as <30 days, with almost all <52 days. No single article proposes a time frame for applying STSG after neodermis regeneration. Therefore, we aimed to describe our protocol to define a time frame for delaying scalp reconstruction with STSG following dermal regeneration. Over the last several years, the senior author has utilized a delayed reconstruction with skin grafting method where-in Integra™ is applied to either debrided bone or exposed pericranium in selected patients, and allowed to mature for ~6 weeks before performing skin grafting. The results have been predictable, reproducible, and have yielded high levels of patient and provider satisfaction due to the improved contour cosmesis. In this pictorial essay, the authors' novel protocol is detailed.


Assuntos
Procedimentos de Cirurgia Plástica , Pele Artificial , Humanos , Idoso , Transplante de Pele/métodos , Couro Cabeludo/cirurgia
6.
Cureus ; 15(5): e38608, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37284376

RESUMO

Integra® Dermal Regeneration Template (IDRT, Integra LifeSciences, Princeton, NJ, USA) is a bilayer membrane developed, by Yannas and Burke in the 1980s, to fulfill the unmet need of surgeons having a readily available off-the-shelf dermal regeneration method. IDRT is composed of a sheet of porous cross-linked type I collagen and glycosaminoglycans, with a semi-permeable silicone sheet cover. IDRT is bio-engineered, from adult bovine Achilles tendons and chondroitin-6-sulfate derived from shark cartilage, in a multi-step process involving cross-linking using glutaraldehyde. By design, the composition, porosity, and biodegradation rate of IDRT guides the mechanism of wound repair towards a regenerative pathway. Its mechanism of action involves four distinct phases: imbibition, fibroblast migration, neovascularization, and remodeling/maturation. Originally developed for the post-excisional treatment of deep-partial to full-thickness burns where autograft is limited, over the years its use has expanded to reconstructive surgery.

7.
JPRAS Open ; 37: 42-51, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37360978

RESUMO

Background/Aim: NovoSorbⓇ Biodegradable Temporizing Matrix (BTM) is a relatively novel, biodegradable polyurethane-based dermal regeneration template. The aim of this study was to evaluate the long-term scarring outcomes and safety of BTM in patients who underwent dermal reconstruction involving ≥5% of the total body surface area. Methods: This was a postmarket, multicenter, observational cohort study involving evaluation of long-term outcomes in patients treated with BTM. A total of 55 patients (35 from Royal Adelaide Hospital, South Australia, and 20 from Victoria Adult Burns Service, The Alfred, Victoria) who underwent dermal repair with BTM between 2011 and 2017 were screened for inclusion in this study. All patients had BTM implanted for ≥18 months. Results: Fifteen eligible patients with a mean (SD) age of 49.1 (14.3) years completed study assessments. These patients had a total of 39 areas treated with BTM. Using the Patient and Observer Scar Assessment Scale, scar quality was reported to be good by both observers and patients, with a mean (SD) observer score across all lesions of 3.6 (1.2) and mean (SD) overall opinion of 3.8 (1.2) as well as a mean (SD) patient score of 3.5 (1.2) and overall opinion of 5.0 (2.2). No adverse events or adverse device effects were reported or identified. Conclusion: The long-term scar quality is comparable to published studies. BTM is safe in the long term with no additional risks or adverse consequences being identified.

8.
Burns Trauma ; 11: tkad015, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37143955

RESUMO

Background: Absence of almost the entire reticular dermal layer is inherent to the use of autologous split-thickness skin grafting (STSG) to close full-thickness wounds, often resulting in hypertrophic scars and contractures. Many dermal substitutes have been developed, but unfortunately most have varying results in terms of cosmetic and/or functional improvement as well as patient satisfaction, in addition to high costs. Bilayered skin reconstruction using the human-derived glycerolized acellular dermis (Glyaderm®) has been reported to result in significantly improved scar quality using a two-step procedure. Unlike the necessary two-step procedure for most commercially available dermal substitutes, in this study we aimed to investigate the use of Glyaderm® in a more cost-effective single-stage engrafting. This is a method which, if autografts are available, is preferred by the majority of surgeons given the reduction in costs, hospitalization time and infection rate. Methods: A prospective, randomized, controlled, intra-individual, single-blinded study was performed, investigating the simultaneous application of Glyaderm® and STSG vs. STSG alone in full-thickness burns or comparable deep skin defects. During the acute phase, bacterial load, graft take and time to wound closure were assessed and were the primary outcomes. Aesthetic and functional results (secondary outcomes) were evaluated at 3, 6, 9 and 12 months follow-up using subjective and objective scar measurement tools. Biopsies for histological analysis were taken at 3 and 12 months. Results: A total of 66 patients representing 82 wound comparisons were included. Graft take (>95%), pain management and healing time were comparable in both groups. At 1 year follow-up, the overall Patient and Observer Scar Assessment Scale assessed by the patient was significantly in favour of sites where Glyaderm® was used. Not infrequently, patients attributed this difference to improved skin sensation. Histological analysis showed the presence of a well-formed neodermis, with donor elastin present for up to 12 months. Conclusions: A single-stage bilayered reconstruction with Glyaderm® and STSG results in optimal graft take without loss of Glyaderm® nor the overlaying autografts due to infection. The presence of elastin in the neodermis was demonstrated during long-term follow-up in all but one patient, which is a crucial factor contributing to the significantly improved overall scar quality as evaluated by the blinded patients. Trial registration: The trial was registered on clinicaltrials.gov and received the following registration code: NCT01033604.

9.
J Maxillofac Oral Surg ; 22(Suppl 1): 151-156, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37041955

RESUMO

Background: Post ablative oral mucosal defect resulting from the removal of tumors can be treated with various techniques. Purpose: In this paper, we are showing what, in our experience, are the advantages and disadvantages given using biosynthetic skin substitutes when dealing with this kind of lesions. Materials and methods: Patients included in the sample came to our attention with both neoplastic lesions (11 subjects) and important scar retraction after previous oncologic surgery (1 subject). All patients underwent trans-oral resection surgery following the same surgical protocol and post ablative oral mucosal defect were treated using the dermal regeneration template. The surgical defect location, size, and time of removal of the silicone layer varied from one subject to the other. Results: Most patients showed good healing with reduced scarring and adequate remucosalisation of the defect. The main complications were shown in a palatal lesion treated with concomitant osteal resection, which developed an oroantral fistula at follow up, and tongue lesions which showed some scarring. Conclusions: Given our experience, we would advise using dermal substitutes when reconstructing oral defects only after a cautious evaluation of the area of the lesion, the gap size, the possible adherence of the membrane to the gap, and the presence of tissue supporting the overlying membrane.

10.
Front Surg ; 9: 915731, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36157405

RESUMO

In older patients with facial basal cell carcinoma (BCC) or squamous cell carcinoma (SCC), surgery should be aimed to reduce treatment-related sequelae and burden with achieving local tumor care. Therefore, we adopted a two-step surgery (TSS) involving the application of a dermal regeneration template onto the skin defect after tumor resection and subsequent reconstruction by full-thickness skin grafting. We performed a detailed comparison of conventional one-step surgery (OSS) and TSS, including evaluation of local tumor curability, postoperative cosmetic and/or functional impairments, and patient burden. Forty-six patients who underwent TSS and 104 patients treated with OSS were retrospectively investigated. The cohort consisted of 77 men and 73 women (median age, 83 years). The BCC: SCC ratio was 56.7%: 43.3%. The tumor size and excision margin were significantly larger in the TSS group than in the OSS group (p = 0.03). The histopathological margin was positive after the first surgery in six cases, but was negative after additional resection in all cases, regardless of OSS or TSS. Local recurrence was not observed in this study. The frequency of postoperative sequelae (POS) in TSS was slightly lower than in OSS (17.4% vs. 27.9%, p = 0.16). A shorter average operation time per session was significantly associated with the location of the vertical defect [below adipose tissue vs. within adipose tissue, estimate: -0.28 (hour), p < 0.001] and surgical procedure [OSS vs. TSS, estimate: -0.13 (hour), p = 0.03] by multiple regression models. The ratio of general anesthesia was relatively lower in TSS than in OSS (9.8% vs. 17.3%, p = 0.12). Thus, TSS showed a good local curability and POS statistically equivalent to OSS, reducing the surgical burden, particularly shortening each operation time without any adverse events, despite the TSS group having significantly larger tumors than the OSS group. Since TSS is a simple procedure, it can be an outstanding option for facial BCC and SCC.

11.
J Wound Care ; 31(7): 612-619, 2022 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-35797255

RESUMO

OBJECTIVE: Integra Dermal Regeneration Template (IDRT) (Integra LifeSciences, US) is a bioengineered dermal matrix that has been widely used in burn reconstruction since its first description. However, little is reported on its use in oncologic dermatological defects. Our objective was to evaluate reconstruction using IDRT on cutaneous tumour defects. METHOD: We conducted a two-year retrospective review of patients with skin tumours who had an excision surgery, followed by reconstruction with IDRT, as a mid-step towards a final autograft procedure: a split-thickness skin graft. The records of all patients at a single academic institution were queried from the electronic medical record using data obtained from the operating surgeon. RESULTS: We identified 13 patients with different tumour types and locations. The mean defect size was 105.92cm². The matrix take rate was 92.3% and average postoperative day for definite autograft was 20 days. Patients were followed for a period of up to 12 months. Of the patients, one had exposed bone without periosteum; another patient showed recurrence six months after matrix placement, requiring a new second two-stage IDRT-autograft procedure before radiation therapy. Patients reported complete satisfaction with the cosmetic, functional and oncological results. No cases of infection were encountered. CONCLUSION: IDRT is a valid option for the reconstruction of oncologic surgical defects of the skin and can be used in different anatomical locations. Specifically, it is an alternative to the reconstructive ladder when grafts and local flaps are not possible in those patients, and an option for patients who will eventually need adjuvant radiotherapy.


Assuntos
Procedimentos de Cirurgia Plástica , Neoplasias Cutâneas , Pele Artificial , Sulfatos de Condroitina/uso terapêutico , Colágeno/uso terapêutico , Humanos , Procedimentos de Cirurgia Plástica/métodos , Estudos Retrospectivos , Neoplasias Cutâneas/cirurgia , Transplante de Pele/métodos
12.
Int J Surg Case Rep ; 95: 107229, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35617736

RESUMO

INTRODUCTION AND IMPORTANCE: Necrotizing soft tissue infections (NSTI) are caused by toxin-producing bacteria and fungi that results in rapid progression of disease with significant local tissue destruction. CASE PRESENTATION: We present a case report of a 57-year-old male patient in line with the SCARE 2020 criteria. He was admitted to the emergency department with a small abrasion on the right antero-lateral chest wall, and a diffuse necrotic patch of skin and soft tissues with purulent discharge. CLINICAL DISCUSSION: Clinical examination, routine blood investigations, CT scan chest, and chest x-ray were performed. Patient underwent debridement six times, followed by negative pressure wound therapy (NPWT). After negative culture report, Integra Meshed Dermal Regeneration Template (IMDRT), measuring 4 × 5 in. was applied and NPWT continued. The outer layer of IDRT was removed on Day 19. Split thickness skin grafting (STSG) was performed once neodermis formation was confirmed. NPWT was continued post skin grafting for a week. IDRT was successfully taken up over the raw area with exposed lung. Patient was discharged 10 days after STSG. The patient's condition improved remarkably and he was able to breathe normally. There was no puckering or tethering effect on the grafted area and not much fibrosis. He showed speedy recovery with healed donor site and 100% uptake of grafted tissue. CONCLUSION: IDRT along with NPWT is an effective and useful technique for spontaneous regeneration of the dermis and basement membrane to promote wound healing in traumatic patients with NSTIs. LEVEL OF EVIDENCE: Level V. STUDY TYPE: Therapeutic.

13.
J Indian Assoc Pediatr Surg ; 27(6): 760-763, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36714496

RESUMO

Acute graft-versus-host disease of the gastrointestinal tract (GI-aGVHD) is a rare condition, often requiring multiple laparotomies, ultimately leading to a burst abdomen. We report the successful use of a dermal regeneration template (DRT), combined with negative pressure wound therapy (NPWT) and skin grafts, to reconstruct the abdominal skin in an 11-year-old boy. The patient was a case of aplastic anemia, who underwent bone marrow transfers, the first of which failed and the second one was successful. He eventually developed gastrointestinal GVHD. Repeated laparotomies were done for recurrent intestinal obstruction. He also underwent resection anastomosis and end ileostomy, after which he developed an anterior abdominal wall defect due to a burst abdomen. After 12 months of management with multiple dressings, NPWT, and DRT, a stable coverage was achieved, without skin retraction. We report our experience in anterior abdominal wall reconstruction in a case of GI-aGVHD using DRT.

14.
J Orthop Case Rep ; 12(12): 90-94, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37056593

RESUMO

Introduction: The human thumb is critical for performing complex movements with the hand. Injuries to the thumb can significantly impact an individual's livelihood, and those with exposed bones or tendons have traditionally been treated with terminalization or reconstructive flap surgeries. However, many patients feel that their results could be better. Case Report: We attempted a novel approach stacking multiple layers of a dermal regeneration template in a quest for better results. A young male teacher presented to our clinic with a 2-day-old severely injured thumb tip. Attempting to regenerate the lost fingertip, we first stacked the inner absorbable layers of the template layer-by-layer over the exposed bone and raw areas. Then, we injected platelet-rich fibrin (PRF) around the wound intraoperatively and at weekly intervals for a month to encourage soft-tissue development. After 6 months, we observed near-total soft-tissue development and good anatomical restoration of the lost thumb tip. Sensation returned to near-normal levels, with full functional recovery of the thumb and hand. Conclusion: Our minimally invasive approach to reconstructing the distal thumb after an Allen Type 3 traumatic injury, utilizing PRF and a regenerative template, is a safe and effective alternative to traditional treatments. This innovative method has improved upon previously described results and may offer hope to many patients with severe thumb injuries.

15.
J Cutan Aesthet Surg ; 14(1): 110-113, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34084018

RESUMO

CONTEXT: In today's era of medical advancement, various modalities of treatment options and dressing materials are available for burn wound management. Bilaminar dermal regeneration template is doubtful in developing countries because of its high cost availability and affordability. AIMS AND OBJECTIVES: The aim of this research was to study the use of innovative indigenous cost-effective bilaminar dermal regeneration template in burn raw area. SETTINGS AND DESIGN: This study was conducted in the department of plastic surgery in a tertiary care centre from April 2019 to May 2019. Study design is experimental study.

16.
World Neurosurg ; 152: e549-e557, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34144172

RESUMO

OBJECTIVE/BACKGROUND: Patients can develop scalp and cranial defects as a result of neoplasm, trauma, or infection. Reconstruction of these defects can be difficult in some patients and may require a multidisciplinary approach using creative solutions usually used for disease processes in other areas of the body, such as severe burns. METHODS: A series of 9 patients were treated using multidisciplinary techniques for reconstruction of complex cranial and scalp defects. Data on patient characteristics, initial treatment, and preparatory and definitive reconstructive treatment were retrospectively collected. Outcomes were measured as full solution, partial solution, or failure. RESULTS: Three patients had a full solution/wound closure, 5 had a partial solution, and 1 failed reconstructive attempt. Full solution patients tended to be younger, received reconstruction treatment modalities for longer periods of time, and had more definitive surgeries. Initial and preparatory surgeries did not tend to promote a full solution, though having fewer preparatory surgeries that were not related to wound vacuum-assisted closure use tended to be associated with a better outcome. Infection of the scalp or cranium did not tend to change the result. CONCLUSIONS: Reconstructive salvage of complex cranial and scalp defects takes time, so patience and earlier recognition of need for atypical reconstruction is beneficial. Patient characteristics may influence outcomes, but judicious choice of materials and techniques is more critical to patient success. Use of a multidisciplinary approach to complex cranial and scalp reconstruction is a beneficial option for many patients for whom standard reconstruction methods are not viable.


Assuntos
Procedimentos Neurocirúrgicos/métodos , Equipe de Assistência ao Paciente , Procedimentos de Cirurgia Plástica/métodos , Terapia de Salvação/métodos , Couro Cabeludo/cirurgia , Crânio/cirurgia , Adulto , Fatores Etários , Idoso , Neoplasias Encefálicas/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tratamento de Ferimentos com Pressão Negativa , Complicações Pós-Operatórias/cirurgia , Estudos Retrospectivos , Transplante de Pele , Falha de Tratamento , Resultado do Tratamento
17.
J Med Case Rep ; 15(1): 180, 2021 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-33875013

RESUMO

BACKGROUND: Dermatofibrosarcoma protuberans (DFSP) is a rare skin fibroblastic tumor, with a high rate of recurrence. The treatment of DFSP is generally surgical, and wide local excision is the mainstay of surgical treatment. Therefore, complete assessment of all surgical margins is fundamental before definitive reconstruction. The reconstruction is a challenge for plastic surgeons, especially in particular anatomical areas (for aesthetic or functional problems) or in patients who are not candidates for more complex surgical treatments. We describe an alternative approach for reconstructive treatment of the lumbar area after wide excision of DFSP (without fresh-frozen sections) in a young obese woman with a history of smoking, using a new type of acellular dermal matrix (ADM) in a combined management protocol. The benefits of ADM are numerous: immediate wound closure and prevention of infections and excessive drying; minimal donor site morbidity; and good functional and aesthetic outcomes. Moreover, it is a temporary cover while the anatomical specimen is histologically analyzed, without donor site morbidity or prevention of any future surgery (if the margins are not tumor-free) or radiotherapy. CASE PRESENTATION: In October 2019, a 34-year old obese Caucasian Woman with a history of smoking came to our institute for a multinodular growing polypoid mass in her lumbar region. An incisional biopsy diagnosed DFSP. The patient underwent proper staging. A wide local excision with 3 cm clinically healthy tissue margins down to the muscle fascia was performed and the defect was repaired using a combined approach with a new artificial bilaminar dermal template (Pelnac®, Gunze Ltd., Osaka, Japan) and a negative-pressure wound therapy system (V.A.C.®, KCI, San Antonio, USA). After the final histological examination revealed tumor-free margins, a split-thickness graft was harvested from the right gluteus and fixed to the new derma with negative-pressure wound therapy. Postoperative radiotherapy was not necessary. After 15 days, the wound had healed without complications, with satisfactory aesthetic outcome and with no limitation of back motion or pain. After 6 months of follow-up, the patient was free from disease. CONCLUSIONS: This is the first reported case of Pelnac® use in DFSP reconstruction of the lumbar region. We believe that the multistep approach described herein may be a good alternative approach in selected patients with wide resections in particular anatomical areas, especially when frozen sections (with Mohs micrographic surgery) are not available.


Assuntos
Dermatofibrossarcoma/cirurgia , Região Lombossacral/cirurgia , Neoplasias Cutâneas/cirurgia , Derme Acelular , Adulto , Dermatofibrossarcoma/patologia , Feminino , Humanos , Japão , Recidiva Local de Neoplasia , Qualidade de Vida , Neoplasias Cutâneas/patologia
18.
Pediatr Neurosurg ; 56(3): 268-273, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33827083

RESUMO

INTRODUCTION: Aplasia cutis congenita (ACC) is a rare congenital abnormality characterized by the absence of a portion of skin at birth which most commonly involves the scalp and can affect the galea, the pericranium, the bone, and the dura mater. It can be an isolated condition or associated with other disorders. CASE REPORT: We present a case of ACC with a large defect of the scalp and the underlying bone treated with the use of Integra® Dermal regeneration template. At 5 months of follow-up, the wound is completely healed and the bony defect greatly reduced. Contraction of the area of alopecia was observed. DISCUSSION: Several surgical and conservative options have been described to treat this congenital condition: advanced dressing, skin graft, local flaps, free flaps, and other methods. In our case, we used Integra® Dermal templates which provide a barrier for infections, promote cellular activity for a rapid vascularization, and improve healing.


Assuntos
Displasia Ectodérmica , Crânio , Displasia Ectodérmica/complicações , Displasia Ectodérmica/cirurgia , Humanos , Recém-Nascido , Couro Cabeludo/cirurgia , Transplante de Pele , Crânio/diagnóstico por imagem , Crânio/cirurgia , Retalhos Cirúrgicos
19.
Bioact Mater ; 6(8): 2613-2628, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33615046

RESUMO

Although employed to release growth factors (GFs) for regenerative medicine, platelet-rich plasma (PRP) has been hindered by issues like burst effect. Based on collagen sponge scaffolds (CSSs) modified with polydopamine (pDA), a novel dermal regeneration template (DRT) was designed. However, whether it could efficiently deliver PRP and even foster wound healing remained unclear. In this work, after PRP was prepared and pDA-modified CSSs (pDA-CSSs) were fabricated, microscopic observation, GFs release assay and in-vitro biological evaluations of pDA-CSSs with PRP (pDA-CSS@PRP) were performed, followed by BALA-C/nu mice full-thickness skin defects implanted with pDA-CSS@PRP covered by grafted skins (termed as a One-step strategy). As a result, scanning electron microscope demonstrated more immobilized platelets on pDA-CSS' surface with GFs' controlled release via enzyme-linked immunosorbent assay, compared with CSSs. In line with enhanced in-vitro proliferation, adhesion and migration of keratinocytes & endothelial cells, pDA-CSS@PRP were histologically revealed to accelerate wound healing with less scar via rapid angiogenesis, arrangement of more mature collagen, guiding cells to spread, etc. In conclusion, pDA-CSSs have potential to serve as a novel DRT capable of delivering PRP, which may foster full-thickness skin defect healing by means of a One-step strategy.

20.
Otolaryngol Head Neck Surg ; 165(2): 275-281, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33588623

RESUMO

OBJECTIVE: Dermal regeneration template and staged split-thickness skin grafting may mitigate the need for flap coverage of postoncologic scalp defects. This technique has been studied previously in small case series. We examine the effect of risk factors, surgical technique, irradiation, and dressing modalities on reconstructive outcomes in a highly comorbid patient cohort. STUDY DESIGN: Retrospective review. SETTING: Academic medical center. METHODS: Full- and partial-thickness extirpative scalp wounds reconstructed with dermal regeneration template and staged skin grafting were reviewed over a 14-year period. Stage 1 consisted of template application following burr craniectomy in cases lacking periosteum. Stage 2 consisted of skin grafting. Negative pressure wound therapy (NPWT) was variably used to support adherence. RESULTS: In total, 102 patients were analyzed (average age 74, mean follow-up 18 months). Eighty-one percent were American Society of Anesthesiologists class 3 or 4. Defect size averaged 56 cm2. Average skin graft take was 94.5% in full-thickness wounds. Seven patients failed this method. Preoperative scalp irradiation was associated with major complication and delayed graft healing. Comorbidities, wound size, and burring were not associated with complication. Patients were more likely to heal with NPWT compared to bolster (hazard ratio, 1.67; 95% CI 1.01-2.77; P = .046). Time between stages was 6.6 days shorter when NPWT was applied (P < .001). CONCLUSION: Dermal template and staged skin grafting is a reliable option for postcancer scalp reconstruction in poor flap candidates. Radiotherapy is associated with adverse outcomes. Negative pressure wound therapy simplifies postoperative wound care regimens and may accelerate healing.


Assuntos
Neoplasias de Cabeça e Pescoço/cirurgia , Couro Cabeludo/lesões , Neoplasias Cutâneas/cirurgia , Transplante de Pele , Cicatrização , Idoso , Idoso de 80 Anos ou mais , Feminino , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Tratamento de Ferimentos com Pressão Negativa , Reprodutibilidade dos Testes , Estudos Retrospectivos , Fatores de Risco , Neoplasias Cutâneas/patologia , Fatores de Tempo , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...