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1.
Ann Plast Surg ; 92(1): 17-20, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-37962248

RESUMEN

GOALS/PURPOSE: The goal of this study was to compare ultrasound-guided transversus abdominis plane (TAP) blocks to local infiltration anesthesia with or without blind rectus sheath blocks in patients who underwent abdominoplasty at an outpatient surgery center. METHODS/TECHNIQUE: A retrospective review was conducted of patients who underwent outpatient abdominoplasty performed by the senior surgeon (J.T.L.). Group 1 received local infiltration anesthesia with or without blind rectus sheath blocks between April 2009 and December 2013. Group 2 received surgeon-led, intraoperative, ultrasound-guided, 4-quadrant TAP blocks between January 2014 and December 2021. Outcomes measured were opioid utilization (morphine milligram equivalents), pain level at discharge, and time spent in postanesthesia care unit (PACU). RESULTS: Sixty patients in each of the 2 study groups met the study criteria for a total of 120 patients. The study groups were similar except for a lower average age in group 1. Patients who received TAP blocks (group 2) had significantly lower morphine milligram equivalent requirements in the PACU (3.07 vs 8.93, P = 0.0001) and required a shorter stay in PACU (95.4 vs 117.18 minutes, P = 0.0001). There were no significant differences in pain level at discharge. CONCLUSIONS: Surgeon-led, intraoperative, ultrasound-guided, 4-quadrant TAP blocks statistically significantly reduced opioid utilization in PACU by 65.6% and average patient time in the PACU by 18.5% (21.8 minutes).


Asunto(s)
Abdominoplastia , Anestesia Local , Humanos , Analgésicos Opioides/uso terapéutico , Anestésicos Locales , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/prevención & control , Ultrasonografía Intervencional , Músculos Abdominales/diagnóstico por imagen , Derivados de la Morfina
2.
Ann Plast Surg ; 92(6S Suppl 4): S397-S400, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38857002

RESUMEN

BACKGROUND: Ultrasound-guided regional field blocks are not widely used in outpatient plastic surgeries. The efficacy of truncal blocks (PEC1 + SAP) has not been established in plastic surgery. The purpose of this study was to analyze the outcomes of these newer anesthetic techniques compared with traditional blind local anesthetic infiltration in patients undergoing breast augmentation. METHODS: This retrospective institutional review board-approved cohort study compared the outcomes of the different practices of 2 plastic surgeons at the same accredited outpatient surgery center between 2018 and 2022. Group 1 received an intraoperative blind local infiltration anesthetic. Group 2 underwent surgeon-led, intraoperative, ultrasound-guided PEC1 (Pectoralis 1) + SAP (serratus anterior plane) blocks. Patients who underwent any procedure other than primary submuscular augmentation mammoplasty were excluded from the study. The outcomes measured included operative time, opioid utilization in morphine milligram equivalents (MME), pain level at discharge, and time spent in the post anesthetic care unit (PACU). RESULTS: Sixty patients met the inclusion criteria for each group for a total of 120 patients. The study groups were similar to each other. Patients receiving PEC1 + SAP blocks (group 2) had significantly lower average MME requirements in the PACU (3.04 MME vs 4.52 MME, P = 0.041) and required a shorter average PACU stay (70.13 minutes vs 80.38 minutes, P = 0.008). There were no significant differences in the pain level at discharge, operative time, or implant size between the 2 groups. CONCLUSIONS: Surgeon-led, intraoperative, ultrasound-guided PEC1 + SAP blocks significantly decreased opioid utilization in the PACU by 33% and patient time in the PACU by 13%, while achieving similar patient pain scores and operating times.


Asunto(s)
Anestesia Local , Mamoplastia , Bloqueo Nervioso , Dolor Postoperatorio , Ultrasonografía Intervencional , Humanos , Femenino , Estudios Retrospectivos , Adulto , Bloqueo Nervioso/métodos , Dolor Postoperatorio/prevención & control , Anestesia Local/métodos , Mamoplastia/métodos , Manejo del Dolor/métodos , Músculos Pectorales/cirugía , Persona de Mediana Edad , Dimensión del Dolor , Periodo de Recuperación de la Anestesia , Anestésicos Locales/administración & dosificación , Estudios de Cohortes
3.
Adv Skin Wound Care ; 36(5): 249-258, 2023 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-37079788

RESUMEN

OBJECTIVE: Stage 3 and 4 pressure injuries (PIs) present an enormous societal burden with no clearly defined interventions for surgical reconstruction. The authors sought to assess, via literature review and a reflection/evaluation of their own clinical practice experience (where applicable), the current limitations to the surgical intervention of stage 3 or 4 PIs and propose an algorithm for surgical reconstruction. METHODS: An interprofessional working group convened to review and assess the scientific literature and propose an algorithm for clinical practice. Data compiled from the literature and a comparison of institutional management were used to develop an algorithm for the surgical reconstruction of stage 3 and 4 PIs with adjunctive use of negative-pressure wound therapy and bioscaffolds. RESULTS: Surgical reconstruction of PI has relatively high complication rates. The use of negative-pressure wound therapy as adjunctive therapy is beneficial and widespread, leading to reduced dressing change frequency. The evidence for the use of bioscaffolds both in standard wound care and as an adjunct to surgical reconstruction of PI is limited. The proposed algorithm aims to reduce complications typically seen with this patient cohort and improve patient outcomes from surgical intervention. CONCLUSIONS: The working group has proposed a surgical algorithm for stage 3 and 4 PI reconstruction. The algorithm will be validated and refined through additional clinical research.


Asunto(s)
Lesiones por Aplastamiento , Úlcera por Presión , Humanos , Úlcera por Presión/cirugía , Infección de la Herida Quirúrgica
4.
Int Wound J ; 19(4): 741-753, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-34363311

RESUMEN

The retrospective pragmatic real-world data (RWD) study compared the healing outcomes of diabetic foot ulcers (DFUs) treated with either ovine forestomach matrix (OFM) (n = 1150) or collagen/oxidised regenerated cellulose (ORC) (n = 1072) in out-patient wound care centres. Median time to wound closure was significantly (P = .0015) faster in the OFM group (14.6 ± 0.5 weeks) relative to the collagen/ORC group (16.4 ± 0.7). A sub-group analysis was performed to understand the relative efficacy in DFUs requiring longer periods of treatment and showed that DFUs treated with OFM healed up to 5.3 weeks faster in these challenging wounds. The percentage of wounds closed at 36 weeks was significantly improved in OFM treated DFUs relative to the collagen/ORC. A Cox proportional hazards analysis showed OFM-treated wounds had a 18% greater probability of healing versus wounds managed with collagen/ORC, and the probability increased to 21% when the analysis was adjusted for multiple variables. This study represents the first large retrospective RWD analysis comparing OFM and collagen/ORC and supports the clinical efficacy of OFM in the treatment of DFUs.


Asunto(s)
Celulosa Oxidada , Diabetes Mellitus , Pie Diabético , Animales , Celulosa Oxidada/uso terapéutico , Colágeno/uso terapéutico , Diabetes Mellitus/tratamiento farmacológico , Pie Diabético/tratamiento farmacológico , Humanos , Estudios Retrospectivos , Ovinos , Resultado del Tratamiento , Cicatrización de Heridas
5.
J Wound Care ; 30(Sup7): S28-S34, 2021 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-34256587

RESUMEN

BACKGROUND: Pilonidal sinus disease (PSD) is a chronic inflammatory disease affecting the soft tissue of the sacrococcygeal region and remains a challenging disease for clinicians to treat. The optimal treatment for PSD remains controversial and recent reports describe several different surgical approaches offering different benefits. Approximately 40% of initial incision and drainage cases require subsequent surgery. Due to high recurrence rates and postoperative complications, a more complex revision surgery involving a flap reconstruction may be required. We hypothesised that the combination of an extracellular matrix (ECM) graft with tissue flap reconstruction may decrease the postoperative complications and recurrence rates for PSD. METHOD: We report a retrospective case series using a surgical flap reconstruction with concomitant implantation of an ovine forestomach ECM graft under a fasciocutaneous flap with an off-midline closure for recurrent PSD, where previously surgical intervention had failed due to wound dehiscence and/or recurrent disease. RESULTS: The case series included six patients. After three weeks, all patients except one were fully healed, and the sixth was fully healed by week 4; all wounds remained fully healed at 12 weeks. All patients achieved good cosmesis and were able to return to normal function without any residual symptoms. CONCLUSION: This pilot case series explored augmenting a flap reconstruction for complex PSD with advanced ECM graft materials, demonstrating that it may improve outcomes and minimise typical complications seen in flap closure, such as inflammation, infection, haematoma/seroma and hypoperfusion. Although the study had a limited number of participants, long-term outcomes were promising and suggest that further studies are warranted.


Asunto(s)
Seno Pilonidal , Animales , Matriz Extracelular , Humanos , Recurrencia Local de Neoplasia , Seno Pilonidal/cirugía , Recurrencia , Estudios Retrospectivos , Ovinos , Resultado del Tratamiento , Cicatrización de Heridas
6.
Ann Plast Surg ; 84(6S Suppl 5): S401-S404, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32032109

RESUMEN

BACKGROUND: The demand for body contouring surgery continues to rise. The inclusion of the superficial fascial system (SFS) during closure of such procedures has been shown to improve outcomes; however, currently reported wound complication rates remain high. The authors assess whether decreased quantities of SFS are associated with wound complications in these patients. METHODS: A retrospective study of patients undergoing body contouring surgery was performed. Preoperatively, ultrasound images were obtained of the SFS. Using Cellprofiler, the mean gray values (MGVs) of the SFS were calculated to quantify this structure. Chart review was performed to identify postoperative wound complications. RESULTS: Thirty-six patients were included: 30 abdominoplasties, 3 bilateral medial thigh lifts, and 3 bilateral brachioplasties. The overall wound complication rate was 22.5%. There were no significant differences in body mass index, age, smoking status, weight of resected specimen, or diabetes when comparing the complication and noncomplication groups. However, the MGV was significantly greater in the noncomplication group compared with the complication group (0.135 ± 0.008 vs 0.099 ± 0.005, respectively, P = 0.03). The average MGV for the entire cohort was 0.127. Patients with an MGV of greater than 0.127 had a wound complication rate of 0% compared with that of 39% for patients with an MGV of 0.127 or less (P = 0.005). CONCLUSIONS: Poor quantities of SFS identified by ultrasound were associated with increased wound complications in patients undergoing body contouring surgery. Furthermore, patients with better than average SFS seem to be protected from such complications.


Asunto(s)
Abdominoplastia , Contorneado Corporal , Humanos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Cuidados Preoperatorios , Estudios Retrospectivos , Muslo/cirugía
7.
J Wound Care ; 29(12): 742-749, 2020 Dec 02.
Artículo en Inglés | MEDLINE | ID: mdl-33320746

RESUMEN

OBJECTIVE: Soft tissue defects, especially those involving exposed vital structures, present a reconstructive challenge because poor vascularity of such defects typically makes immediate skin grafting unviable. Where flap procedures are inappropriate or not possible, dermal matrices represent an alternative reconstructive option for defects with denuded vital structures. With dermal matrices becoming increasingly available and technologically advanced, we evaluated an ovine-derived extracellular matrix graft in the reconstruction of complex soft tissue defects involving exposed vital structures. METHOD: Six cases of soft tissue defects exhibiting denuded vital structures underwent reconstruction using an ovine forestomach matrix graft as a dermal matrix. Grafts were fixed directly into defects for immediate coverage and subsequently temporised defects via granulation tissue formation for later skin graft or secondary closure. Defect granulation and epithelialisation were monitored until closure and the final aesthetic and functional outcomes were evaluated. RESULTS: Complete healing was achieved in all cases, with defect granulation becoming observable within one to two weeks and complete granulation occurring within one to six weeks. Granulation tissue resulting from the graft was suitable for skin grafting, with 100% take of skin grafts after one week and complete re-epithelialisation in two to three weeks in the four cases that received a skin graft. Good cosmetic, functional and patient satisfaction outcomes were achieved in all cases. CONCLUSION: The present series demonstrates our initial use of an extracellular matrix-based dermal matrix in reconstructing defects with exposed vital structures. While such dermal matrices do not supersede or replace flap procedures, they represent an alternative option on the reconstructive ladder in cases where flap procedures are not appropriate or possible.


Asunto(s)
Matriz Extracelular , Procedimientos de Cirugía Plástica/métodos , Trasplante de Piel , Piel Artificial , Colgajos Quirúrgicos , Anciano de 80 o más Años , Animales , Preescolar , Femenino , Humanos , Masculino , Proyectos Piloto , Estudios Retrospectivos , Ovinos
8.
J Wound Care ; 29(11): 624-630, 2020 Nov 02.
Artículo en Inglés | MEDLINE | ID: mdl-33175626

RESUMEN

OBJECTIVE: Surgical management of Hurley stage III hidradenitis suppurativa (HS) typically involves the excision of diseased tissue and subsequent reconstruction, potentially leading to complications or recurrence of the disease. This pilot case series sought to evaluate a decellularised ovine forestomach matrix (OFM) extracellular matrix (ECM) graft for soft tissue regeneration as part of surgical reconstruction of stage III HS of the axilla. METHOD: The prospective pilot case series involved six participants and a total of eight defects. The ECM graft was used either as a dermal substitute for a staged reconstruction (n=3 defects) or as an implant under a fasciocutaneous flap (n=5 defects) following wide excision of the diseased tissue. RESULTS: In all cases complete healing was achieved, with no major surgical complications. When used as a dermal substitute the OFM graft was completely granulated within 2-4 weeks, with defects closing by secondary intention or following placement of a split-thickness skin graft. When used as an implant beneath a fasciocutaneous flap, healing of the surgical sites was observed after 1-3 months. At the long-term follow-up (3-12 months), all participants had excellent range of motion and none had reported disease recurrences. CONCLUSION: This pilot case series explored the implementation of an ECM graft as part of the surgical management of axilla Hurley stage III HS. Although the study had a limited number of participants, long-term outcomes were promising and suggest further studies are warranted.


Asunto(s)
Matriz Extracelular , Hidradenitis Supurativa/cirugía , Trasplante de Piel , Colgajos Quirúrgicos , Animales , Estudios Prospectivos , Ovinos
9.
Ann Plast Surg ; 80(6S Suppl 6): S426-S430, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29668510

RESUMEN

Surgical site infection after breast reconstruction is associated with increased length of hospital stay, readmission rates, cost, morbidity, and mortality. Identifying methods to reduce surgical site infection without the use of antibiotics may be beneficial at reducing antimicrobial resistance, reserving the use of antibiotics for more severe cases. Quaternary ammonium salts have previously been shown to be a safe and effective antimicrobial agent in the setting of in vitro and in vivo animal experiments. A retrospective study was conducted to investigate the antimicrobial properties of a quaternary ammonium salt, 3-trimethoxysilyl propyldimethyloctadecyl ammonium chloride (QAS-3PAC; Bio-spear), at reducing surgical drain site colonization and infection after breast reconstruction (deep inferior epigastric perforator flap reconstruction or tissue expander placement). Twenty patients were enrolled, with 14 surgical drains covered with nonimpregnated gauze and 17 surgical drains covered with QAS-3PAC impregnated gauze, for the purposes of investigating bacterial colonization. Antibiotic sensitivity analysis was also conducted when bacterial cultures were positive. The overall incidence of bacterial colonization of surgical drains was lower in the treatment group compared with the control group (17.6% vs 64.3%, respectively; P = 0.008). QAS-3PAC impregnated gauze reduced the incidence of bacterial colonization of surgical drains during the first (0.0% vs 33.3%) and second (33.3% vs 87.5%; P = 0.04) postoperative week. Furthermore, no enhanced antibiotic resistance was noted on drains treated with QAS-3PAC impregnated gauze. The results of this study suggest that QAS-3PAC impregnated gauze applied over surgical drains may be an effective method for reducing the incidence of bacterial colonization.


Asunto(s)
Antiinfecciosos/administración & dosificación , Drenaje/instrumentación , Contaminación de Equipos/prevención & control , Mamoplastia , Cuidados Posoperatorios/métodos , Compuestos de Amonio Cuaternario/administración & dosificación , Infección de la Herida Quirúrgica/prevención & control , Adulto , Anciano , Antiinfecciosos/uso terapéutico , Drenaje/efectos adversos , Femenino , Infecciones por Bacterias Gramnegativas/epidemiología , Infecciones por Bacterias Gramnegativas/etiología , Infecciones por Bacterias Gramnegativas/prevención & control , Infecciones por Bacterias Grampositivas/epidemiología , Infecciones por Bacterias Grampositivas/etiología , Infecciones por Bacterias Grampositivas/prevención & control , Humanos , Persona de Mediana Edad , Apósitos Oclusivos , Cuidados Posoperatorios/instrumentación , Compuestos de Amonio Cuaternario/uso terapéutico , Estudios Retrospectivos , Infección de la Herida Quirúrgica/epidemiología , Infección de la Herida Quirúrgica/etiología , Resultado del Tratamiento
11.
Cells Tissues Organs ; 203(3): 183-193, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28125805

RESUMEN

A significant number of patients undergo mastectomies and breast reconstructions every year using many surgical-based techniques to reconstruct the nipple-areolar complex (NAC). Described herein is a tissue engineering approach that may permit a human NAC onlay graft during breast reconstruction procedures. By applying decellularization, which is the removal of cellular components from tissue, to an intact whole donor NAC, the extracellular matrix (ECM) structure of the NAC is preserved. This creates a biologically derived scaffold for cells to repopulate and regenerate the NAC. A detergent-based decellularization method was used to derive whole NAC scaffolds from nonhuman primate rhesus macaque NAC tissue. Using both histological and quantitative analyses for the native and decellularized tissues, the derived ECM graft was assessed. The bioactivity of the scaffold was evaluated following cell culture with bone marrow-derived mesenchymal stem cells (BMSCs). The data presented here demonstrate that scaffolds are devoid of cells and retain ECM integrity and a high degree of bioactivity. The content of collagen and glycosaminoglycans were not significantly altered by the decellularization process, whereas the elastin content was significantly decreased. The proliferation and apoptosis of seeded BMSCs were found to be approximately 65 and <1.5%, respectively. This study characterizes the successful decellularization of NAC tissue as compared to native NACs based on structural protein composition, lubricating protein retention, the maintenance of adhesion molecules, and bioactivity when reseeded with cells. These histological and quantitative analyses provide the foundation for a novel approach to NAC reconstruction.


Asunto(s)
Pezones/fisiología , Procedimientos de Cirugía Plástica/métodos , Ingeniería de Tejidos/métodos , Andamios del Tejido/química , Animales , Núcleo Celular/metabolismo , ADN/aislamiento & purificación , Matriz Extracelular/metabolismo , Femenino , Humanos , Macaca mulatta , Masculino , Células Madre/citología
12.
Ann Plast Surg ; 76 Suppl 4: S304-11, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26954734

RESUMEN

BACKGROUND: Two-stage breast reconstruction with tissue expanders is one of the most common plastic surgery procedures. Acellular dermal matrix (ADM) has become popular for its ability to improve expansion parameters and aesthetics, albeit with a higher complication profile. We present data that support redefining 2-stage reconstruction to include tissue expanders regardless of final reconstructive modality to act as a bridge. Furthermore, we show that cooperation with the ablative surgeon and technical refinements support ADM omission from the first stage of reconstruction. METHODS: We retrospectively reviewed charts from the senior author's (D.A.J.) private practice over a 10-year follow-up period. Inclusion criteria included all women over 18 years who underwent mastectomy and had a tissue expander placed immediately or in a delayed fashion and successfully completed tissue expansion and are finished with the second stage of reconstruction or awaiting second stage of reconstruction. Demographic data, tissue expander filling data, final reconstruction, aesthetic outcome, and complications were tabulated. RESULTS: A total of 118 women (165 breasts) met inclusion criteria. There were no statistically significant differences in initial fill volume (P = 0.094), number of visits until final expansion (P = 0.677), or final fill volume (P = 0.985) between the ADM and non-ADM cohorts. In addition, non-ADM patients had superior aesthetic scores with respect to defects other than scarring (P = 0.015), projection (P = 0.013), and inframammary fold quality (P = 0.009). Fifteen percent of women decided to change desired final reconstruction modality during the tissue expansion phase. CONCLUSIONS: This reconstructive algorithm emphasizes surgical cooperation between the ablative and reconstructive surgeon, improved technique, and patient education. This focus translates into maintained tissue expansion, aesthetically pleasing results, and allows for the omission of ADM from reconstruction.


Asunto(s)
Mamoplastia/métodos , Expansión de Tejido/métodos , Dermis Acelular , Adulto , Femenino , Estudios de Seguimiento , Humanos , Mamoplastia/instrumentación , Mastectomía , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Estudios Retrospectivos , Expansión de Tejido/instrumentación , Dispositivos de Expansión Tisular
13.
Am J Physiol Heart Circ Physiol ; 307(8): H1187-95, 2014 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-25320332

RESUMEN

The effect of intratracheal administration of cyclooxygenase-1 (COX-1)-modified adipose stem cells (ASCs) on monocrotaline-induced pulmonary hypertension (MCT-PH) was investigated in the rat. The COX-1 gene was cloned from rat intestinal cells, fused with a hemagglutanin (HA) tag, and cloned into a lentiviral vector. The COX-1 lentiviral vector was shown to enhance COX-1 protein expression and inhibit proliferation of vascular smooth muscle cells without increasing apoptosis. Human ASCs transfected with the COX-1 lentiviral vector (ASCCOX-1) display enhanced COX-1 activity while exhibiting similar differentiation potential compared with untransduced (native) ASCs. PH was induced in rats with MCT, and the rats were subsequently treated with intratracheal injection of ASCCOX-1 or untransduced ASCs. The intratracheal administration of ASCCOX-1 3 × 10(6) cells on day 14 after MCT treatment significantly attenuated MCT-induced PH when hemodynamic values were measured on day 35 after MCT treatment whereas administration of untransduced ASCs had no significant effect. These results indicate that intratracheally administered ASCCOX-1 persisted for at least 21 days in the lung and attenuate MCT-induced PH and right ventricular hypertrophy. In addition, vasodilator responses to the nitric oxide donor sodium nitroprusside were not altered by the presence of ASCCOX-1 in the lung. These data emphasize the effectiveness of ASCCOX-1 in the treatment of experimentally induced PH.


Asunto(s)
Tejido Adiposo/citología , Células Madre Adultas/metabolismo , Ciclooxigenasa 1/metabolismo , Hipertensión Pulmonar/terapia , Trasplante de Células Madre , Células Madre Adultas/citología , Células Madre Adultas/trasplante , Animales , Diferenciación Celular , Ciclooxigenasa 1/genética , Vectores Genéticos/genética , Humanos , Hipertensión Pulmonar/etiología , Hipertensión Pulmonar/metabolismo , Lentivirus/genética , Monocrotalina/toxicidad , Ratas , Ratas Sprague-Dawley
14.
Eplasty ; 24: e6, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38476520

RESUMEN

Background: In the United States, acquired buried penis deformity is an increasingly more common condition. Management of the buried penis deformity is accomplished with removal of macerated skin and subcutaneous tissue from the panniculus and prepubic region, and replacement of denuded penile skin. If local tissue advancement is insufficient to cover the defect, a skin graft may be required. Though the anterior thigh is commonly used, this creates a second defect. Here we describe 2 cases of split-thickness skin grafts harvested from the panniculus to cover buried penis deformities. Methods: Two patients with a buried penis deformity were identified. The denuded suprapubic tissue was elevated. Using inferior traction, split-thickness skin grafts were harvested and placed onto the shaft of the penis. The remaining excess tissue was resected. Results: One patient had a fungal rash that resolved with topical treatment. The other patient had a hematoma requiring surgical evacuation. Neither patient had any other complications, and both had over 95% take of the split-thickness skin grafts. Conclusions: These cases demonstrate the successful use of pannicular skin grafts for buried penis deformity correction. This donor site avoids creation of a second defect. As demonstrated here, the grafts are a durable option, even in the setting of local infection and hematoma.

15.
Plast Reconstr Surg Glob Open ; 12(6): e5918, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38911578

RESUMEN

Background: Topical nitrates have demonstrated efficacy in improving flap perfusion. However, evidence for nontopical nitrates in modulation of flap perfusion dynamics has yet to be consolidated. Here, we review evidence regarding the use of intravascular, sublingual, and oral nitrates in modulating flap perfusion. Methods: We performed a review of the literature for evidence linking nontopical nitrates and flap perfusion, and included clinical studies, animal studies, and in vitro studies. Results: Evidence suggests that intravascular, sublingual, and oral nitrates exert vasodilatory properties, which may be harnessed for identification of perforators and improved flap perfusion. We also found evidence suggesting nitrates may facilitate ischemic preconditioning while reducing ischemia-reperfusion injury. Conclusions: Nitrates delivered intravascularly, sublingually, or orally may increase flap perfusion and serve as a method for ischemic preconditioning, particularly in the intraoperative setting.

16.
Plast Reconstr Surg Glob Open ; 12(4): e5770, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38660335

RESUMEN

Low volumetric retention limits the utility of fat grafting. Although inclusion of stem cells and platelet-rich plasma have been proposed to enhance graft retention, accumulating evidence has failed to show a clear benefit. Here, we propose a strategy to pharmacologically enhance stemness of stem and progenitor cell populations in fat grafts to promote increased volume retention and tissue health. We also propose how to integrate stemness-promoting and differentiation-promoting therapies such as platelet-rich plasma, and viability promoting therapies within the common fat grafting workflow to achieve optimal fat grafting results.

17.
Breast Cancer Res Treat ; 137(1): 69-79, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23143214

RESUMEN

Breast cancer tissue is a heterogeneous cellular milieu comprising cancer and host cells. The interaction between breast malignant and non-malignant cells takes place in breast tumor microenvironment (TM), and has a crucial role in breast cancer progression. In addition to cellular component of TM, it mainly consists of cytokines released by tumor cells. The tumor-tropic capacity of mesenchymal stem cells (MSCs) and their interaction with breast TM is an active area of investigation. In the present communication, the interplay between the breast resident adipose tissue-derived MSCs (B-ASCs) and breast TM was studied. It was found that a distinct subset of B-ASCs display a strong affinity for conditioned media (CM) from two breast cancer cell lines, MDA-MB 231 (MDA-CM) and MCF-7 (MCF-CM). The expressions of several cytokines including angiogenin, GM-CSF, IL-6, GRO-α and IL-8 in MDA-CM and MCF-CM have been identified. Upon functional analysis a crucial role for GRO-α and IL-8 in B-ASCs migration was detected. The B-ASC migration was found to be via negative regulation of RECK and enhanced expression of MMPs. Furthermore, transcriptome analysis showed that migratory subpopulation express both pro- and anti-tumorigenic genes and microRNAs (miRNA). Importantly, we observed that the migratory cells exhibit similar gene and miRNA attributes as those seen in B-ASCs of breast cancer patients. These findings are novel and suggest that in breast cancer, B-ASCs migrate to the proximity of tumor foci. Characterization of the molecular mechanisms involved in the interplay between B-ASCs and breast TM will help in understanding the probable role of B-ASCs in breast cancer development, and could pave way for anticancer therapies.


Asunto(s)
Neoplasias de la Mama/patología , Células Madre Mesenquimatosas/fisiología , Microambiente Tumoral , Tejido Adiposo/patología , Animales , Quimiocina CXCL1/metabolismo , Quimiocina CXCL1/fisiología , Quimiotaxis , Medios de Cultivo Condicionados , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Interleucina-8/metabolismo , Interleucina-8/fisiología , Células MCF-7 , Ratones , MicroARNs/genética , MicroARNs/metabolismo , Trasplante de Neoplasias , Transcriptoma
18.
Eplasty ; 23: e41, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37465480

RESUMEN

Introduction: Soft tissue loss following total knee arthroplasty can result in catastrophic complications. Defects can be covered using various flaps and grafts, including fasciocutaneous flaps. Here, we discuss one case of double bipedicled "bucket-handle" local advancement flaps used for a nonhealing midline knee dehiscence wound following total knee arthroplasty. Methods: Flaps were planned using perforators identified with forward-looking infrared (FLIR) thermal imaging. Two bucket-handle bipedicled flaps were used for repair. Autologous split-thickness skin grafts were used for the donor sites. Results: FLIR imaging was used for flap monitoring. Apart from one site of superficial epidermolysis that healed with local wound care, there were no postoperative complications. Discussion: This case demonstrates the successful use of double bipedicled local advancement flaps to reconstruct a defect following a total knee arthroplasty. These flaps minimize donor site morbidity, provide adequate coverage, allow for tension-free closures, and have reliable vascular supplies. FLIR thermal imaging is an accessible and useful tool in designing and monitoring flaps.

19.
Plast Reconstr Surg ; 152(2): 455-462, 2023 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-36790781

RESUMEN

BACKGROUND: Price transparency allows patients to estimate surgical procedure costs, which can affect where they elect to receive care and should theoretically result in hospitals setting lower and more uniform prices. To elucidate the traditionally opaque nature of health care pricing, the U.S. Centers for Medicare & Medicaid Services has mandated that hospitals publicly release their pricing information. The authors sought to investigate the utility of price transparency for plastic surgery patients, who are uniquely situated to benefit because of the dominance of elective procedures. METHODS: This study included 54 randomly chosen public and private hospitals. Pricing information for 15 common plastic surgery-related procedures was compiled from their websites. RESULTS: One year after the ruling went into effect, only 13% of hospitals were fully compliant with Centers for Medicare & Medicaid Services requirements for reporting standard charges. The most commonly reported plastic surgery procedures were adjacent tissue transfers (CPT codes 14000, 14001, 14301, and 14302), with an average of 32.4% of hospitals listing pricing data. The 25.9% of hospitals reporting the immediate insertion of breast implants (CPT code 19340) pricing presented a wide range of gross prices, from $2346.09 to $29,969.35. Free and pedicled flaps (CPT codes 19364, 19361, 19367, 19368, and 19369) were less commonly reported than autologous tissue transfer or nonflap breast procedures ( P = 0.00). CONCLUSIONS: A comparative analysis of published prices provides a starting point for surgeons to recommend facilities to patients based on price. However, significant variability was observed in data presentation, reported procedures, and listed prices. These inconsistencies in reporting and unrealistic ranges in price render the comparison of plastic surgery prices among hospitals impractical.


Asunto(s)
Medicare , Procedimientos de Cirugía Plástica , Anciano , Humanos , Estados Unidos , Centers for Medicare and Medicaid Services, U.S. , Costos y Análisis de Costo , Hospitales
20.
Eplasty ; 23: e20, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37187868

RESUMEN

Background. Plantar fibromatosis, or Ledderhose disease, presents as plantar fascia nodules caused by hyperactive proliferating fibroblasts. These benign tumorous growths can persist causing pain as well as reduced mobility and quality of life. Plantar fibromatosis may not respond to conservative nonsurgical treatment resulting in surgical intervention, including wide excision of the affected tissue and subsequent reconstruction. Reconstruction of the full-thickness plantar defect is challenging given the location, and recurrence rates are relatively high. Here we present a staged reconstruction of plantar fibromatosis following wide excision using a biologic graft to regenerate the neodermis and subsequent skin grafting. This reconstructive approach provided an alternative to free flap transfer, with excellent functional outcomes.

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