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1.
Microsurgery ; 44(5): e31202, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38887138

RESUMEN

INTRODUCTION: One of the biggest challenges with gender-affirming vaginoplasty was the creation of a long-lasting, durable, patent, and self-lubricating neovaginal canal that allowed for spontaneous, pain-free sexual intercourse. The jejunum was a durable, physiologic, and intestinal option to create the neovaginal canal that minimizes the adverse effects of skin graft, peritoneal, and colonic vaginoplasties. Free jejunal vaginoplasties had been performed in cis females for congenital genitourinary anomalies like Mullerian agenesis or after gynecologic-oncologic surgery but had yet to be reported for gender-affirming vaginoplasties. The purpose of this report was to present a technique for a physiologic, intestinal, gender-affirming vaginoplasty without the disadvantages of colonic vaginoplasties. PATIENTS AND METHODS: This report presented six patients, all natal males who identified as female, undergoing robotic-assisted free jejunal flap gender-affirming vaginoplasty. Mean age was 35.8 years (range: 21-66). Mean body mass index was 33.2 kg/m2 (range: 28.0-41.0). The proximal aspect of the neovaginal canal was created intra-abdominally by elevating peritoneal flaps from the posterior bladder wall to be reflected downward into the external neovaginal canal. The jejunal flap was harvested. The greater saphenous vein was harvested to create an arteriovenous loop between the flap vessels and the recipient femoral artery in an end-to-side fashion and a branch of the femoral vein. The jejunal flap was passed intra-abdominally through the groin incision and then trans-peritoneally into the neovaginal canal. The jejunal segment was inset to the proximal peritoneal flaps and the distal inverted penoscrotal skin of the neovaginal introitus. RESULTS: Mean length of the harvest jejunal segment was 19.2 cm (range: 15-20). Mean time to ambulation, foley removal, and first vaginal dilation were 3.3 (range: 3-4), 4.0 (range: 3-5), and 4.5 days (range: 4-6), respectively. By a mean follow-up duration of 8.0 months (range: 1-14), mean vaginal depth and diameter were 7.0 and 1.3 cm (range: 1.0-1.5), respectively. Two (33.3%) patients experienced postoperative complications, including groin hematoma (n = 1, 16.7%) and reoperation for correction of dehiscence of the jejunal flap to the vaginal introitus (n = 1, 16.7%). CONCLUSION: Gender-affirming surgeons should consider a free vascularized segment of jejunum as an option to line the neovaginal canal in the correct patients.


Asunto(s)
Colgajos Tisulares Libres , Yeyuno , Procedimientos Quirúrgicos Robotizados , Cirugía de Reasignación de Sexo , Vagina , Humanos , Femenino , Vagina/cirugía , Vagina/anomalías , Masculino , Yeyuno/trasplante , Yeyuno/cirugía , Colgajos Tisulares Libres/trasplante , Adulto , Procedimientos Quirúrgicos Robotizados/métodos , Cirugía de Reasignación de Sexo/métodos , Persona de Mediana Edad , Anciano , Adulto Joven , Procedimientos de Cirugía Plástica/métodos , Resultado del Tratamiento , Estudios Retrospectivos , Estructuras Creadas Quirúrgicamente
2.
J Plast Reconstr Aesthet Surg ; 95: 28-32, 2024 Jun 06.
Artículo en Inglés | MEDLINE | ID: mdl-38865842

RESUMEN

BACKGROUND: Double-incision mastectomy (DIM) with free nipple grafts (FNG) is a common technique employed in gender-affirming mastectomy (GAM), but is associated with a high scar burden. Intraoperatively, the surgeon may opt for a single-incision mastectomy (SIM) along the inframammary folds (IMF) to optimize aesthetic outcomes. This study sought to identify factors predictive of intraoperative conversion. METHODS: From February 2018 to November 2022, TGNB patients who underwent GAM at a single institution were retrospectively reviewed. Data regarding patient characteristics, perioperative details, postoperative complications, and aesthetic satisfaction were collected. RESULTS: A total of 352 patients were identified. Median age and body mass index (BMI) were 25.0 years (IQR: 9.0) and 28.5 kg/m2 (IQR: 8.5), respectively. Most patients received IMF incisions (n = 331, 94.0%); of whom, 66 (19.9%) underwent intraoperative conversion from DIM to SIM with FNG. Larger breast cup-size (p < 0.001) and a greater degree of ptosis (p = 0.002) preoperatively were significantly associated with intraoperative conversion to SIM. There was no significant association between intraoperative conversion and the ratio of intermammary distance to the width of the chest wall (p = 0.086). Overall complication rates were significantly higher among patients with diabetes mellitus (p = 0.015) and a greater degree of ptosis (p = 0.018). 77.8% (n = 274) of patients were satisfied with their aesthetic outcome. NPWT usage was associated with higher rates of aesthetic satisfaction (83.6% vs. 77.8%; p = 0.005). CONCLUSION: Patients with larger breast cup size and greater degree of ptosis should be counseled preoperatively that they may be at a higher risk of conversion to a singular incision.

3.
J Clin Med ; 13(12)2024 Jun 07.
Artículo en Inglés | MEDLINE | ID: mdl-38929897

RESUMEN

Background: Gender-affirming mastectomy (GAM) improves the psychosocial functioning and quality of life of transgender and non-binary (TGNB) individuals. However, the perioperative period is often marked by emotional stress, concerns about surgical outcomes, and physical discomfort. While inpatient procedures provide multiple opportunities to engage with and educate patients, outpatient surgeries, such as GAM, pose a unique challenge as patients are followed for <24 h postoperatively. Given the heightened emotional and psychological distress related to gender dysphoria TGNB individuals often experience, addressing these gaps can significantly improve outcomes. This study aims to characterize patient and surgical characteristics associated with patient-initiated communication (PIC) frequency in this population. Methods: A single-center retrospective review of TGNB patients undergoing GAM from February 2018 to November 2022 was conducted. Demographics, surgical characteristics, and frequency of and reasons for perioperative PIC (30 days before and after surgery) were recorded. The primary outcome was the incidence of perioperative PIC. The secondary outcomes included (1) the rationale for PIC and (2) patient and surgical characteristics associated with PIC. Results: A total of 352 patients were included. Of these, 285 (74.6%) initiated communication in the perioperative period, totaling 659 PICs. The median age was 25.0 (interquartile range [IQR]: 9.0) years. The median body mass index (BMI) was 28.5 (IQR: 8.5) kg/m2. The mean number of PICs was 0.7 ± 1.3 preoperatively and 1.3 ± 1.7 postoperatively (p < 0.001). The most frequent preoperative PIC subjects were administrative issues (AI; n = 66, 30.7%), preoperative requirements (n = 43, 20.0%), and cost and insurance (n = 33, 15.0%). The most frequent postoperative PIC subjects were wound care (n = 77, 17.3%), AI (n = 70, 15.0%), activity restrictions (n = 60, 13.5%), drainage (n = 56, 12.6%), and swelling (n = 37, 8.3%). Collectively, older patients (ß = 0.234, p = 0.001), those with a history of major depressive disorder or generalized anxiety disorder (2.4 ± 3.0 vs. 1.7 ± 1.9; p = 0.019), and those without postoperative drains (n = 16/17, 94.1% vs. n = 236/334, 70.7%; p = 0.025) engaged in higher levels of PIC. There were no significant associations between other patient characteristics, perioperative details, or complications and PIC frequency. Conclusions: Perioperative PIC is prevalent among the majority of GAM patients at our institution, with age, psychiatric diagnosis, and postoperative drain use identified as significant predictors. To mitigate PIC frequency, it is crucial to ensure adequate support staffing and provide comprehensive postoperative instructions, particularly concerning activity restrictions and drainage management. These interventions may reduce PICs in high-volume centers. Further research should investigate targeted interventions to further support TGNB patients during the perioperative period.

5.
J Plast Reconstr Aesthet Surg ; 91: 56-66, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38402813

RESUMEN

Thyroid chondroplasty (TC) in facial gender-affirming surgery (FGAS) is aimed at modifying the thyroid cartilage to achieve a more feminine laryngeal appearance. This study evaluated open versus endoscopic techniques to TC and associated outcomes and complications. A systematic review (SR) of articles pertaining to TC was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Twelve articles representing 368 patients were included for analysis. Nine articles described open approaches, and three articles described endoscopic techniques. The rate of total complications was 4.3% (n = 12) in the open approach compared to 15% (n = 13) in the endoscopic approach. Positive esthetic results were reported in 92% of cases performed with the open approach and 90% with the endoscopic approach. In the open approach, seven (2.5%) patients requested additional removal of cartilage, and three (1.1%) requested scar revision. In the endoscopic approach, three (3.7%) patients requested additional cartilage removal. In addition, data of individuals who underwent "cervical tracheoplasty" for gender dysphoria from the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) database was reviewed, and there was no incidence of wound or major complications among patients who underwent tracheoplasty alone. Although the advantage of the endoscopic approach is a scarless neck incision, the rate of complications is higher with the open approach. Endoscopic approaches are still not widely used, and continued investigations are warranted to improve familiarity with this approach and reduce postoperative complications.


Asunto(s)
Cirugía de Reasignación de Sexo , Glándula Tiroides , Humanos , Glándula Tiroides/cirugía , Endoscopía/efectos adversos , Endoscopía/métodos , Cuello/cirugía , Reoperación
6.
Ann Plast Surg ; 92(4): 447-456, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38319959

RESUMEN

BACKGROUND: Some surgeons use body mass index criteria within the patient selection processes before vaginoplasty, thereby limiting access to select obese patients. We sought to better characterize the effect of obesity on postoperative outcomes across multiple vaginoplasty techniques. METHODS: A single-center retrospective review of all transfeminine patients undergoing primary vaginoplasty procedures from December 2018 to July 2022 was conducted. Patients were stratified into cohorts according to the World Health Organization Obesity Class criteria. Data regarding demographics, comorbidities, operative details, postoperative complications, and all-cause revision were collected. RESULTS: A total of 237 patients met the inclusion criteria. Average follow-up duration was 9.1 ± 4.7 months. Multivariate regression revealed that patients with class I and class II/III obesity were associated with higher odds of developing vaginal stenosis (class I: odds ratio [OR], 7.1 [ P = 0.003]; class II/III: OR, 3.4 [ P = 0.018]) and all-cause revision (class I: OR, 3.7 [ P = 0.021]; class II/III: OR, 4.8 [ P = 0.027]). Undergoing either robotic peritoneal or robotic intestinal vaginoplasty was associated with lower odds of delayed wound healing (peritoneal: OR, 0.2 [ P < 0.001]; intestinal: OR, 0.2 [ P = 0.011]). Lastly, adherence to dilation regimen was negatively associated with development of vaginal stenosis (OR, 0.04; P < 0.001). CONCLUSIONS: Patients with obesity may be at a higher risk of developing vaginal stenosis after vaginoplasty, which may ultimately necessitate operative revision. Although patients with obesity may remain surgical candidates, proper preoperative counseling and adherence to postoperative vaginal dilation regimens are critical to optimizing outcomes.


Asunto(s)
Transexualidad , Vagina , Humanos , Femenino , Vagina/cirugía , Constricción Patológica , Obesidad/complicaciones , Estudios Retrospectivos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología
7.
Eur J Plast Surg ; : 1-9, 2023 Jan 24.
Artículo en Inglés | MEDLINE | ID: mdl-36714185

RESUMEN

Background: Transgender individuals have long experienced discrimination and exclusion from medicine. Misgendering occurs when an individual is referred to using a gender or address incongruent with their identity. We evaluated the incidence of misgendering throughout the perioperative experience for patients undergoing gender-affirming surgery (GAS). Methods: Patients diagnosed with gender dysphoria who previously received GAS by the senior author were contacted to complete an IRB-approved survey to evaluate instances of misgendering while in the hospital for GAS. Study results were summarized using descriptive statistics. Results: Of 471 patients contacted, 182 completed the survey (38.6%). The most cited gender identity was transfemale (28.0%). Most patients reported respect for their gender identity (60.4%) and name (76.8%) during their perioperative experience. Twenty-two percent cited triggering experiences, and 15.4% reported interactions with healthcare employees causing them to reach out to a support system. Misgendering most commonly included incorrect use of patients' preferred names and/or pronouns (n = 50, 86.2%), most commonly at surgical check-in (n = 10, 45.5%). Recommendations to improve feelings of gender congruence during patients' stay included updated names and gender identities in electronic medical records (80.8%), and names and pronouns listed on curtains and doors (52.3%) and name tags (51.5%). Conclusions: Until now, the exact incidence of misgendering among patients seeking GAS have not been well established. Despite high levels of satisfaction, a large proportion still reported serious instances of misgendering. Improvements must be made to the perioperative experience to reduce misgendering and provide support and comfort during the sensitive period surrounding patients' gender transition.Level of evidence: Not gradable. Supplementary Information: The online version contains supplementary material available at 10.1007/s00238-022-02040-2.

8.
Plast Reconstr Surg Glob Open ; 10(9): e4552, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36187279

RESUMEN

Improvements in human immunodeficiency virus (HIV) treatment resulted in drastic increases in the lifespan of HIV-positive individuals, resulting in higher rates of non-AIDS-defining cancers. We describe our postoperative outcomes in HIV+ breast cancer (BC) patients, highlighting our multidisciplinary experience with this high-risk population. Methods: A 7-year multi-institutional retrospective review of all HIV+ BC patients who underwent surgical intervention was performed. Patient demographics, therapeutic interventions, and treatment outcomes were collected. Results: Twenty-four patients were identified, including one male patient (4.2%). Most patients were African American (83.3%). Mean age was 52.1 + 9.7 years at the time of diagnosis in HIV+ BC patients. Surgical interventions included lumpectomy (n = 16, 66.7%), simple mastectomy (n = 3, 12.5%), and skin-sparing mastectomy (n = 5. 20.8%). All patients were on antiretroviral therapy, and 81.3% had undetectable viral loads at the time of operation. Seventeen patients (70.8%) underwent breast reconstruction, with three (17.7%) undergoing delayed reconstruction. Thirty-day postoperative complications occurred in three patients (17.6%), including flap necrosis (11.8%), infection (11.8%), dehiscence (5.9%), and return to OR (11.8%). Three patients (12.5%) experienced recurrence at a median of 18 months since operation. Mean follow-up was 51.4 + 33.3 months since BC diagnosis. Conclusions: While postoperative complication rates in HIV+ patients trended higher (17.6%) compared with the existing data on breast reconstruction patients overall (10.1%), HIV+ patients did not exhibit increased risk of BC recurrence (12.5%) compared with BC patients overall (12-27%). This highlights the importance of a combined multidisciplinary approach involving infectious disease, breast surgery, and plastic and reconstructive surgery to optimize surgical and oncologic outcomes in these high-risk patients.

9.
World J Plast Surg ; 10(2): 14-24, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-34307093

RESUMEN

BACKGROUND: Chest masculinization is aimed at aligning physical appearance of female-to-male (FtM) transgender patients to their identifying gender. Despite limited evidence, obese FtM patients have historically been denied this procedure due to concerns of complications. We reviewed chest masculinization in the high body mass index (BMI) population to analyze the outcomes. METHODS: A Medstar system single surgeon retrospective case review was performed of all FtM patients who underwent chest masculinization from Jan 2018 to Dec 2019 with a BMI greater than 30 kg/m2. Primary outcomes were mastectomy-site complications. RESULTS: Twenty-seven obese FtM patients who underwent bilateral chest masculinization were identified. Mean BMI was 39.2 kg/m2 (SD 5.2). Preoperatively, the majority of patients had a cup size of D or larger (77.3%) and grade 3 ptosis (80.0%). Overall rate of complications was 31.5% at median follow-up of 2.1 months. Individual complications included: partial nipple graft loss 18.5%, total nipple graft loss 5.6%, seroma 3.7%, hematoma 3.7%, infection 2.9%. No complications necessitated return to the operating room. However, the majority of patients (77.8%) were completely satisfied with their aesthetic outcome. CONCLUSION: Mastectomy can be safely performed for chest masculinization in obese FtM patients. The rate of acute complications is comparable to that of non-obese patients despite a mean BMI near 40 kg/m2 in this case series. A safe procedure with high satisfaction, obese FtM patients should not be excluded from the increased quality of life and dysphoria reduction chest wall masculinization offers.

10.
Ann Transl Med ; 9(7): 612, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33987310

RESUMEN

Nipple-areola complex (NAC) reconstruction in transgender and gender non-binary (TGNB) individuals undergoing chest wall masculinization surgery is critical for adequate satisfaction and aesthetic results. Here, we conducted a systematic review to find the various techniques and outcomes of NAC reconstruction in double-incision mastectomy and free nipple grafts (DIM-FNG). A comprehensive search of several databases was conducted based on PRISMA guidelines. We included studies that described the NAC reconstruction technique after DIM-FNG, and evaluated the surgical outcomes, or satisfaction, or aesthetic results after a minimum duration of follow-up of 6 months. Studies were assessed for risk of bias. A qualitative synthesis was performed. A total of 19 studies, comprising 1,587 patients (3,174 breasts), were included. There was a total of 14 studies using the conventional FNG technique, 4 describing new approaches for NAC reconstruction in FNG and 1 study comparing the conventional FNG technique to another alternative technique. A total of 1,347 patients underwent DIM-FNG with conventional FNG and 240 underwent alternative techniques for NAC reconstruction after DIM-FNG. Postoperative complications were low, and satisfaction was high for conventional and alternative techniques. Newer techniques aim to reshape the new NACs in an oval shape, reduce nipple size and place the NACs using the pectoralis major lateral and inferior borders as reference. In addition, a horizontal oval incision at the recipient site may avoid an undesired vertical NAC.

11.
Ann Plast Surg ; 85(S1 Suppl 1): S37-S40, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32205496

RESUMEN

BACKGROUND: Seroma is a common complication after breast surgery such as mastectomy and immediate reconstruction. However, there is a lack of evidence for the utility of drains in the recipient site in delayed autologous breast reconstruction. We reviewed our experience with delayed abdominal-based flap breast reconstruction with a drainless recipient site. METHODS: A single-surgeon retrospective case review was performed for delayed abdominal-based flap breast reconstruction using drainless recipient sites from May 2018 to June 2019. Primary outcomes were recipient-site complications. RESULTS: Thirty-one delayed abdominal-based flap breast reconstructions that did not use drains in the recipient site were identified in 22 patients. Mean age was 52.8 years (SD, 9.7 years). Mean body mass index was 30.1 kg/m (interquartile range [IQR], 28.2-35.0 kg/m). Common comorbidities were obesity (45.4%), prior tobacco use (31.8%), and diabetes (10.0%). Median time to abdominal-based flap reconstruction was 27.5 months (IQR, 9.9-105.2 months). There were 22 muscle-sparing transverse rectus abdominis musculocutaneous flaps and 9 deep inferior epigastric artery perforator flaps performed. Ten patients (45.4%) underwent bilateral reconstruction. Mean operative time was 302 minutes (SD, 85 minutes). Flap take back occurred in 1 case (3.2%). Mean length of stay was 4 days (SD, 0.8 days). Recipient-site complications were healing complications (32.3%), seroma (3.2%), hematoma (3.2%), and fat necrosis (19.4%). Median follow-up was 4.2 months (IQR, 2.5-11.5). CONCLUSIONS: In this case series, our data indicate that delayed autologous reconstruction without drain placement at the recipient site has been proven to be safe and successful and did not increase the rate of seroma or other complications. Adopting a drainless approach may also improve patient comfort and satisfaction.


Asunto(s)
Neoplasias de la Mama , Mamoplastia , Colgajo Perforante , Humanos , Incidencia , Mamoplastia/efectos adversos , Mastectomía , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Estudios Retrospectivos
12.
Plast Reconstr Surg Glob Open ; 8(1): e2356, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32095382

RESUMEN

Satisfaction rates are reported as high after subcutaneous mastectomy for chest masculinization. We examined patient satisfaction based on linguistic analysis of social media posts showing postoperative results and compared them to aesthetic quality ratings from plastic surgeons. METHODS: Fifty publicly available images of subcutaneous mastectomy postoperative results of female-to-male gender transition patients were selected from Instagram. The photograph's corresponding post and comments were then analyzed for sentiment through the IBM Watson tone analyzer, which rated the presence of joy on a continuous scale from 0 to 1. Three plastic surgeons rated aesthetic quality on an ordinal scale of 1 to 10. Results of both analyses were then compared. RESULTS: Joy was rated as a mean value of 0.74 (±0.13) in posts and 0.81 (±0.13) in comments. The mean ratings of results were found to be chest contour 6.1 of 10 (±1.7), scar position 5.3 of 10 (±1.8), scar quality 4.8 of 10 (±1.9), nipple position 5.2 of 10 (±1.9), and nipple quality 5.1 of 10 (±2.0). A positive relationship was found between post joy and nipple quality (r = 0.33, P = 0.0169). There were no other associations detected between level of joy and the ratings of results by plastic surgeons (P > 0.05). CONCLUSIONS: Despite wide variety in surgical appearance, there is a high level of satisfaction and community support. This is in contrast to the low-quality ratings by plastic surgeons. The results demonstrate the strong psychological and functional underpinnings chest masculinization has for patients. However, surgical results can be improved through a variety of techniques such that patients have both excellent surgical results and high satisfaction.

13.
Microsurgery ; 39(6): 548-552, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31225685

RESUMEN

We present our "String of Pearls" technique for upper and lower extremity lymphedema based off the right gastroepiploic artery. The entire laprascopically harvested omentum is placed through a longitudinal incision at the lymphedematous area, and anastomosed proximally, with additional distal venous outflow. This approach preserves the native lymphaticovenous architecture, distributes free lymphatic tissue along the axis of the extremity, and allows for scar release. The additional vein serves to restore bidirectional physiologic drainage inherent in the omentum and providing further lymphaticovenous drainage. We present two cases of upper and lower extremity lymphedema as a result of malignancy treated using this method. The first case was a result of breast cancer in a 55-year-old female with orthotopically placed omentum, and the second case a result of malignant nodular fasciitis in the distal lower extremity in a 56-year-old female with distally placed omentum. No complications occurred. At 3 months follow up, there is a 25% and 28% reduction in lower and upper extremity volume, respectively, with no recurrent cellulitis episodes. The safety and feasibility of placement of the entire omentum longitudinally with additional venous anastomosis are apparent. However, long-term studies are required.


Asunto(s)
Neoplasias de la Mama/cirugía , Arteria Gastroepiploica/cirugía , Ganglios Linfáticos/irrigación sanguínea , Ganglios Linfáticos/trasplante , Linfedema/cirugía , Epiplón/trasplante , Anastomosis Quirúrgica , Brazo/irrigación sanguínea , Femenino , Estudios de Seguimiento , Humanos , Laparoscopía , Pierna/irrigación sanguínea , Persona de Mediana Edad
14.
Hand (N Y) ; 10(4): 688-94, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26568724

RESUMEN

BACKGROUND: Hydrophilic polymers have been shown to improve physiologic recovery following repair of transected nerves with microsutures. Our study was designed to combine hydrophilic polymer therapy with nerve tubes (NT) to enhance polymer delivery to the site of nerve injury. METHODS: Using a rat sciatic nerve injury model, a single transection injury was repaired in an end-to-end fashion with NT + polyethylene glycol (PEG) to NT alone. Compound action potentials (CAPs) were recorded before nerve transection and after repair. Behavioral testing was performed for 5 weeks. RESULTS: PEG therapy restored CAPS in all, but one, animals, while no CAPS were recorded in animals not receiving PEG. Behavioral nerve function was measured using the standardized functional assessment technique and foot fault asymmetry scores (FF). FF scores were improved for the PEG therapy groups on postoperative days 7, 14, and 21. However, after expected eventual axonal outgrowth, the benefit was less noticeable at days 28 and 35. Immunohistochemistry of the distal axon segments showed an increase number of sensory and motor axons in the NT + PEG group as compared to NT alone. CONCLUSION: These data suggest that PEG delivery via a conduit may provide a simple, effective way to fuse severed axons and regain early nerve function. For proximal nerve injuries in large animals, recovery of axonal continuity could dramatically improve outcomes, even if fusion only occurs in a small percentage of axons.

15.
Ann Plast Surg ; 75(6): 620-4, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25785374

RESUMEN

BACKGROUND: Lengthy microvascular procedures carry hypothermia risk, yet limited published data evaluate the overall impact of core temperature on patient and flap morbidity. Although hypothermia may contribute to complications, warming measures are challenged by conflicting reports of intraoperative hypothermia improving anastomotic patency. METHODS: A retrospective review included all free flaps performed by plastic surgeons at an academic medical center from December 2005 to December 2010. Intraoperative core temperatures were measured by esophageal probe, and median values recorded over 5-minute intervals yielded a case mean (Tavg), maximum (Tmax), and nadir (Tmin). Outcomes included flap failure, pedicle thrombosis, recipient site infection and complications associated with patient, and flap morbidity. Analysis used Student t test, Fisher exact test, Probit, and logistic regression. RESULTS: Of 156 consecutive free tissue transfers, the median Tavg, Tmax, and Tmin were 36.5°C, 37.1°C, and 35.8°C, respectively. The flap failure rate was 7.7% (12/156) and pedicle thrombosis occurred in 9 (6%) cases. Core temperatures did not associate with overall flap failure or pedicle thrombosis but recipient site infection occurred in 21 (13%) patients who had significantly lower mean core temperatures (Tavg=36.0°C, P<0.01). Lower Tavg and Tmax significantly predicted recipient site infection (P<0.01 and P<0.05, respectively). Cut-point analysis revealed significant increases in recipient site infection risk at Tavg less than 37.0°C (P=0.026) and Tmin less than or equal to 34.5°C (P=0.020). CONCLUSIONS: Intraoperative hypothermia posed significant risk of flap infection with no benefit to anastomotic patency in free tissue transfer.


Asunto(s)
Colgajos Tisulares Libres , Hipotermia/etiología , Complicaciones Intraoperatorias , Procedimientos de Cirugía Plástica , Complicaciones Posoperatorias/etiología , Adulto , Anciano , Femenino , Colgajos Tisulares Libres/irrigación sanguínea , Supervivencia de Injerto , Humanos , Hipotermia/diagnóstico , Complicaciones Intraoperatorias/diagnóstico , Modelos Logísticos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Infección de la Herida Quirúrgica/etiología
16.
Ann Plast Surg ; 75(5): 534-8, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24691318

RESUMEN

BACKGROUND: For patients with BRCA mutations, a simultaneous procedure that combines risk-reducing operation of the ovaries with mastectomy and breast reconstruction is an attractive option. The purpose of this study was to assess the outcomes and associated cost of performing simultaneous mastectomy, free flap breast reconstruction (FFR), and gynecologic procedure. METHODS: A retrospective chart review was performed on patients who underwent bilateral FFR from 2005 to 2012. Four hundred twenty-two patients were identified who underwent bilateral breast reconstruction without a simultaneous gynecologic procedure. Forty-two patients were identified who underwent simultaneous FFR and gynecologic procedure. Clinical outcomes, medical and surgical complications, and hospital costs were analyzed and compared between the 2 groups. RESULTS: A total of 928 free flaps were performed on 464 patients. Forty-two patients had a simultaneous gynecologic procedure at the time of breast reconstruction. Twenty-three (54.8%) patients within the study group underwent simultaneous bilateral salpingo oophorectomy (BSO), whereas the other 19 (45.2%) underwent both total abdominal hysterectomy and BSO. Eighty-four free flaps were performed in this cohort (n = 48 muscle-sparing transverse rectus abdominis myocutaneous, n = 28 deep inferior epigastric perforator, n = 4 superficial inferior epigastric perforator, n = 4 transverse upper gracilis). Mean operative time was 573 minutes. Mean hospitalization was 5.3 days. Postoperatively, 4 patients experienced an anastomotic thrombosis; 2 patients had an arterial thrombosis and 2 patients had a venous thrombosis. There were 2 flap failures, 2 patients with mastectomy skin flap necrosis, 11 patients who developed breast wound healing complications, and 6 patients who developed abdominal wound healing complications. Surgical and medical complication rates did not differ significantly between those who had simultaneous procedures, and those who did not. There was a statistically significant difference in the average total cost when comparing the group of patients receiving prophylactic mastectomy/FFR/total abdominal hysterectomy and/or BSO versus the patients who did not have combined gynecologic procedures at the time of reconstruction ($22,994.52 vs $21,029.23, P = 0.0004). CONCLUSIONS: For the high-risk breast cancer patient, a combined mastectomy, free flap reconstruction, and gynecologic procedure represents an attractive and safe option.


Asunto(s)
Colgajos Tisulares Libres/economía , Procedimientos Quirúrgicos Ginecológicos/economía , Costos de Hospital/estadística & datos numéricos , Mamoplastia/economía , Mastectomía/economía , Procedimientos Quirúrgicos Profilácticos/economía , Adulto , Neoplasias de la Mama/economía , Neoplasias de la Mama/prevención & control , Femenino , Colgajos Tisulares Libres/trasplante , Neoplasias de los Genitales Femeninos/economía , Neoplasias de los Genitales Femeninos/prevención & control , Humanos , Mamoplastia/métodos , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Pennsylvania , Complicaciones Posoperatorias/economía , Estudios Retrospectivos
17.
Ann Plast Surg ; 73(5): 531-4, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-23657045

RESUMEN

Merkel cell carcinoma (MCC) is a rare and aggressive cutaneous malignancy. Adjuvant radiation increases survival in advanced stages, but efficacy in stage I disease is unknown. A retrospective review included all patients treated for stage I MCC during a 15-year period at Vanderbilt University Medical Center. Among 42 patients, 26 (62%) had a negative sentinel lymph node biopsy (stage IA) and 16 (38%) had clinically negative lymph nodes (stage IB) at the time of resection. Analysis using Cox regression revealed that higher stage and absence of adjuvant radiation are associated with increased disease recurrence (hazard ratio, 6.29; P=0.003 and hazard ratio, 4.69; P=0.013, respectively). Controlling for stage, radiation therapy significantly increased disease-free survival among patients with stage IB disease (P=0.0026) in a log-rank test comparing Kaplan-Meier curves. These findings support adjuvant radiation therapy in stage IB MCC patients with clinically negative lymph nodes who do not undergo sentinel lymph node biopsy.


Asunto(s)
Carcinoma de Células de Merkel/radioterapia , Neoplasias de Cabeza y Cuello/radioterapia , Neoplasias Cutáneas/radioterapia , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células de Merkel/patología , Carcinoma de Células de Merkel/cirugía , Supervivencia sin Enfermedad , Extremidades , Femenino , Estudios de Seguimiento , Neoplasias de Cabeza y Cuello/patología , Neoplasias de Cabeza y Cuello/cirugía , Humanos , Estimación de Kaplan-Meier , Escisión del Ganglio Linfático , Metástasis Linfática , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Estadificación de Neoplasias , Modelos de Riesgos Proporcionales , Radioterapia Adyuvante , Estudios Retrospectivos , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/cirugía , Torso , Resultado del Tratamiento
18.
Ann Plast Surg ; 69(4): 364-7, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-22964664

RESUMEN

Patients undergoing microvascular reconstruction are often anemic from a combination of iatrogenic hemodilution and acute blood losses. No major clinical study describes the impact of preoperative anemia on free flap morbidity. The plastic surgery service at a high-volume academic center performed 156 free flaps among 147 patients from December 2005 to December 2010. One hundred thirty-two had a preoperative hemoglobin (Hb) or hematocrit (Hct), with mean values of 11.8±2.4 g/dL and 35.2%±7.0%, respectively. The overall failure rate was 9% (12/132), primarily from vascular thrombosis (6/12). Through logistic regression analysis, Hb and Hct were significant predictors of flap failure (P<0.005) and vascular thrombosis (P<0.05). Fisher exact test revealed a significant increase in failure risk at Hct level less than 30% (Hb<10 g/dL) (relative risk, 4.76, P=0.006), and probit analysis demonstrated an exposure-response relationship to decreased Hct level (P<0.005). These findings support that preoperative anemia could significantly impact free flap morbidity.


Asunto(s)
Anemia/complicaciones , Colgajos Tisulares Libres/patología , Procedimientos de Cirugía Plástica/métodos , Complicaciones Posoperatorias/etiología , Trombosis/etiología , Anemia/sangre , Anemia/diagnóstico , Biomarcadores/sangre , Femenino , Colgajos Tisulares Libres/irrigación sanguínea , Colgajos Tisulares Libres/trasplante , Supervivencia de Injerto , Hematócrito , Hemoglobinas/metabolismo , Humanos , Modelos Logísticos , Masculino , Microvasos/patología , Microvasos/cirugía , Persona de Mediana Edad , Necrosis/etiología , Periodo Preoperatorio , Estudios Retrospectivos , Factores de Riesgo
19.
J Surg Res ; 177(2): 392-400, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-22521220

RESUMEN

BACKGROUND: Approximately 12% of operations for traumatic neuropathy are for patients with segmental nerve loss, and less than 50% of these injuries obtain meaningful functional recovery. Polyethylene glycol (PEG) therapy has been shown to improve functional outcomes after nerve severance, and we hypothesized this therapy could also benefit nerve autografting. METHODS: We used a segmental rat sciatic nerve injury model in which we repaired a 0.5-cm defect with an autograft using microsurgery. We treated experimental animals with solutions containing methylene blue (MB) and PEG; control animals did not receive PEG. We recorded compound action potentials (CAPs) before nerve transection, after solution therapy, and at 72 h postoperatively. The animals underwent behavioral testing at 24 and 72 h postoperatively. After we euthanized the animals, we fixed the nerves, sectioned and immunostained them to allow for quantitative morphometric analysis. RESULTS: The introduction of hydrophilic polymers greatly improved morphological and functional recovery of rat sciatic axons at 1-3 d after nerve autografting. Polyethylene glycol therapy restored CAPs in all animals, and CAPs were still present 72 h postoperatively. No CAPS were detectable in control animals. Foot Fault asymmetry scores and sciatic functional index scores were significantly improved for PEG therapy group at all time points (P < 0.05 and P < 0.001; P < 0.001 and P < 0.01). Sensory and motor axon counts were increased distally in nerves treated with PEG compared with control (P = 0.019 and P = 0.003). CONCLUSIONS: Polyethylene glycol therapy improves early physiologic function, behavioral outcomes, and distal axonal density after nerve autografting.


Asunto(s)
Regeneración Nerviosa/efectos de los fármacos , Transferencia de Nervios , Polietilenglicoles/uso terapéutico , Neuropatía Ciática/cirugía , Tensoactivos/uso terapéutico , Potenciales de Acción , Animales , Axones/patología , Conducta Animal , Femenino , Pie/fisiología , Polietilenglicoles/farmacología , Ratas , Ratas Sprague-Dawley , Nervio Ciático/fisiología , Tensoactivos/farmacología
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