The ideal gluteal contouring in Thai-transwomen: cross-sectional descriptive study.

Background: Gluteal contouring is one of the major concerns of transwomen worldwide. Hip and gluteal surgery, as one type of gender-affirmation surgery (GAS), is now increasing in popularity to alleviate gender incongruence. This study investigated the ideal buttock shape in the Thai-transwomen population, which can further aid in the guidance for hip and gluteal surgery. Methods: A cross-sectional descriptive study was done on transwomen attending services at Tangerine Community Health Center, the Plastic and Reconstructive Surgery Clinic in Chulalongkorn Hospital, and Gender Health Community from 2022 to 2023. Participants were inquired about their ideal gluteal contouring using survey images of gluteal contouring of varying proportions and gluteal shapes on posterior and lateral views. Results: Among 373 participants, the most preferred waist-to-hip ratio (WHR) in the posterior view and lateral view were 0.65 and 0.70, respectively. Regarding gluteal convexity, many participants preferred round shape buttocks the most (47.45%), followed by the A-shape (43.97%), square shape (7.77%) and, V-shape (0.80%). In the gluteal projection aspect, the most attractive type was the middle buttock type which data were congruence among each subgroup population. Conclusions: The image of a narrowing waist proportionated with a widening hip on the posterior view, with the WHR of 0.65, could be considered an ideal perception of beauty in transwomen. It could help the patient in decision-making and guiding the surgical planning.

Impact of radiation on immediate breast reconstruction: a retrospective single institution cohort study.

Background: While the trend towards immediate breast reconstruction is growing, data on the long-term outcomes of patients receiving irradiation afterwards are scarce. We retrospectively reviewed the long-term complication rates in patients who received adjuvant radiation therapy after immediate breast reconstruction in our institution. Methods: We included 134 patients with breast cancer who underwent single-stage immediate breast reconstruction between January 2008 and December 2018. Sixty-eight patients received adjuvant irradiation and 66 patients did not. Autologous tissue, implant-based, and combined (implant and flap) reconstruction were performed in 40, 55, and 39 patients, respectively. Flap and implant complications data were collected. Baker's classification was used to assess capsular contracture. Results: The average follow-up was 47 months. Both groups had similar baseline clinical characteristics and treatments received. The irradiated-group had a higher incidence of adjuvant chemotherapy (P<0.01) and a significantly higher rate of grade III/IV capsular contracture (42.1% vs. 26.9%; P=0.004) than that of the non-irradiated group. The median time to the development of capsular contracture was 37 vs. 41 months in the irradiated vs. the non-irradiated group, respectively. There were no differences in the incidence of flap complications between both groups. The only significant risk factor associated with grade III/IV capsular contracture was adjuvant post-mastectomy irradiation. The irradiated group had a higher risk of developing grade III/IV capsular contracture [odds ratio (OR), 4.35; 95% confidence interval (CI): 1.55-12.27]. Conclusions: Postmastectomy radiotherapy adversely affects implant-based immediate one-stage reconstruction by increasing the rate of moderate to severe capsular contracture but is not associated with flap complications.

A Rectoprostatic Fascia Reinforcement Flap for Rectal Injury and Rectoneovaginal Fistula in Gender-Affirmation Surgery.

BACKGROUND: Intraoperative rectal injuries and rectoneovaginal fistulas are rare complications in gender-affirmation surgery for trans women. Primary repair with an improper method may result in recurrence. The procedures required for the surgical treatment of these problems are rare. In this article, the authors describe the surgical technique using a rectoprostatic fascia reinforcement flap for intraoperative rectal injury and rectoneovaginal fistula correction in gender-affirmation surgery for trans women. METHODS: Retrospective data were collected on the female transgender patients who underwent surgical treatment of intraoperative rectal injury and rectovaginal fistula with the prostaticovesicular fascia reinforcement flap. Patient demographics, follow-up, and intraoperative details were collected and analyzed. RESULTS: From January of 2006 to December of 2018, 14 female transgender patients presented with intraoperative rectal injuries and five cases of rectovaginal fistulas from a total of 2059 patients who underwent neovaginoplasty. Two patients with rectovaginal fistulas had their neovaginoplasty performed elsewhere. The mean location of intraoperative rectal injury was 5.2 cm (range, 2 to 6.5 cm), and the rectoneovaginal fistula was 5.4 cm (range, 3.5 to 6.5 cm) from the vaginal introitus. The mean size of intraoperative rectal injury and rectoneovaginal fistula was 2.5 cm (range, 1 to 3.5 cm) and 2.3 cm (range, 0.2 to 3.2 cm) in diameter, respectively. No recurrence of rectovaginal fistulas was reported after 1-year follow-up. CONCLUSION: A rectoprostatic fascia reinforcement flap is an alternative technique to repair intraoperative rectal injury and rectoneovaginal fistulas incorporating the neovaginal lining with a skin graft or sigmoid colon in gender-affirmation surgery for trans women. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

3D PED BURN app: A precise and easy-to-use pediatric 3D burn surface area calculation tool.

Background and aims: Calculating the precise total burn surface area is crucial when treating burn patients, particularly children. The Lund and Browder chart and Rule of Nines, 2-dimensional diagrams that are widely used, are subject to high interrater variance, and they can severely overestimate the burn area. Previously, the adult 3-dimensional burn area calculation mobile application was developed. Aiming to improve accuracy, a 3-dimensional pediatric burn surface area calculation mobile application ("3D PED BURN") was developed to overcome the limitations of the conventional methods. Method: Fifteen 3-dimensional pediatric burn surface area models based on detailed anthropometric measurements collected from 85 patients were developed and categorized into four age groups: <1 year; 1-4 years; 5-9 years, and 10-15 years. According to their weight and height, the models in each group were fractionated into large, medium, and small body sizes. Result: A precise and easy-to-use application was developed based on these data. This application is a promising and more accurate calculation tool for burn surface area in pediatric patients. Its low inter-rater variance makes it reliable for use by various healthcare personnel. Conclusion: The 3D PED BURN app is a pediatric 3D burn surface area calculation tool that is both accurate and simple to use.

An anthropometric study of the external ear in the Thai population.

Auricular dimensions are important data for the treatment of auricular deformities, either congenital or acquired. Many previous studies have shown that the auricular dimension varies among ethnic groups; however, there are currently no available data for the Thai population. The objective of this investigation was to provide normative values regarding the adult ear dimensions in Thailand. A total of 200 Thai volunteers between the ages of 18 and 70 years (80 men, 120 women) were enrolled in this study. We measured six dimensions, including the auricular, lobular, and conchal length and width and the auricular projection at the superaurale and tragal levels. Moreover, we calculated the auricular, lobular, and conchal indices. The selected dimensions of the external ears were shown as means ± standard deviations. These parameters were then compared between the right and left sides, men and women and participants aged ≥50 and <50 years. We found that men have a significantly larger and more projected ear than women do. The length of the entire auricles and the length of the earlobe were also significantly longer in the population ≥50 years than those <50 years. This study provides normative data of the external ear dimension and projection in the adult Thai population. These data can be used to reconstruct the ear and face more appropriately for Thai individuals.

The Effect of Cold Water on Pain Evaluation During Negative Pressure Wound Therapy Dressing Changes: A Prospective, Randomized Controlled Study.

Negative pressure wound therapy (NPWT) is a technique using vacuum dressing to promote wound healing in complicated wound. However, for many patients, the application and removal of the NPWT is source of procedural pain. The authors hypothesized that administering cold sterile water into the NPWT sponge would decrease pain during dressing changes. A prospective randomized controlled study was conducted on 27 patients who were undergoing 81 NPWT wound dressing changes (n = 81) at a single institution between October 2016 and September 2017. Each patient had 3 NPWT dressing changes. Cold sterile water (5.74 °C), room temperature sterile water (26.89 °C), and nothing were randomized and administered in the NPWT tubing into the sponge 10 minutes before changing the dressing in each and every procedure. Pain scores were assessed using a 0 to 10 numeric pain scale. Patients administered with cold water reported less pain than those administered with room temperature sterile water during the dressing change (4 vs 5.67; P < .003), and much less pain than those with nothing instilled before dressing change (4 vs 6.59; P < .001). There is no statistically significant difference in pain score between using the room temperature sterile water group and the control group that instilled nothing (5.67 vs 6.59; P = .065). This study has shown that cold water administered through the suction tubing before the dressing change had a better reduction in pain score than using room temperature sterile water and the control group.

Neovaginal and Anal High-Risk Human Papillomavirus DNA Among Thai Transgender Women in Gender Health Clinics.

BACKGROUND: Although human papillomavirus (HPV)-related lesions in the neovagina of transgender women have been well documented, information on high-risk HPV (hrHPV) in the neovagina has been very limited. The objective of this study was to determine hrHPV DNA detection rate in the neovagina of transgender women. METHODS: Neovaginal and anal swab were collected in liquid-based cytology fluid from transgender women visiting Gender Health Clinic and Tangerine Community Health Clinic in Bangkok, Thailand. Samples were processed for hrHPV DNA (reported as subtypes 16 and 18 or the pooled result of subtypes 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, and 66) by automated real-time polymerase chain reaction and for neovaginal cytology according to the Bethesda system. Demographic data and sexual history were obtained, and physical examination was conducted. HIV status was obtained from existing medical records. RESULTS: Samples were collected from 57 transgender women (mean age, 30.4 years [interquartile range, 8 years]). From 35 of 57 valid neovaginal samples, 8 (20%) tested positive for hrHPV DNA. From 30 of 57 valid anal samples, 6 (19.4%) tested positive for hrHPV DNA. HIV status was known for 52 transgender women, 1 of which were HIV infected; neovaginal hrHPV was invalid in that patient. CONCLUSIONS: One of 5 transgender women visiting sexual health clinics in Bangkok was found to have hrHPV DNA in neovaginal and anal compartments. Studies are needed to look at incidence and persistence of hrHPV infection to inform anogenital precancerous and cancerous screening programs for transgender women.

The Anatomical Study of the Nasal Septal Cartilage with its Clinical Implications.

BACKGROUND: Several rhinoplasty and nasal reconstruction procedures require cartilage. Various studies have reported on the nasal septal cartilage as a donor site for Caucasian and Asian populations. However, studies regarding the Thai nasal septal cartilage dimensions are rare. This study aimed to examine the length, height, area, and thickness of the nasal septal cartilage, along with implications of the size and quantity of the available cartilage, for grafting in Thai cadavers. METHODS: We analyzed the nasal septal cartilage in 42 Thai cadavers. The length, height, area, and thickness were digitally measured using ImageJ 1.52 software, along with the size and area of the available cartilage for grafting after preserving a 10-mm L-strut. Data were compared between sexes. RESULTS: The mean height, length, and area of the nasal septal cartilage were 30.96 ± 5.90 mm, 26.13 ± 6.90 mm, and 636.10 ± 196.13 mm2, respectively. The length did not differ significantly between sexes. However, the height and area in male cadavers were greater than those in female cadavers. The mean thickness ranged from 0.77 to 1.02 mm depending on the area, with the thickest and thinnest areas being the superoposterior and inferoposterior parts, respectively. The mean height, length, and area of the harvestable cartilage were 20.96 mm, 16.13 mm, and 384.84 mm2, respectively, after excluding the L-strut. CONCLUSION: Our results provide major anatomical data of the Thai nasal septal cartilage. Its implication for use of the septal cartilage for grafting is 21 mm in height and 16 mm in length, which is sufficiently safe to maintain nasal support. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these evidence-based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.

Spermatogenesis Abnormalities following Hormonal Therapy in Transwomen.

OBJECTIVE: To measure spermatogenesis abnormalities in transwomen at the time of sex reassignment surgery (SRS) and to analyze the association between hormonal therapy duration and infertility severity. DESIGN: Retrospective study. SETTING: University hospital. PATIENTS: One-hundred seventy-three transwomen who underwent SRS from January 2000 to December 2015. INTERVENTIONS: All orchidectomy specimens were retrospectively reviewed and classified. History of hormonal therapy duration was retrieved from medical records. MAIN OUTCOME MEASURES: Histological examinations of orchidectomy specimens were performed to assess spermatogenesis. RESULTS: One-hundred seventy-three orchidectomy specimens were evaluated. Histological examinations showed maturation arrest in 36.4%, hypospermatogenesis in 26%, Sertoli cell-only syndrome in 20.2%, normal spermatogenesis in 11%, and seminiferous tubule hyalinization in 6.4% of the specimens. Spermatogenesis abnormality severity was not associated with the total therapy duration (P = 0.81) or patient age at the time of surgery (P = 0.88). Testicular volumes and sizes were associated with spermatogenesis abnormality severity (P = 0.001 and P = 0.026, right testicle and left testicle, resp.). CONCLUSIONS: Feminizing hormonal treatment leads to reductions in testicular germ cell levels. All transwomen should be warned about this consequence, and gamete preservation should be offered before starting hormonal treatment.

The Role of Negative-Pressure Wound Therapy in Latissimus Dorsi Flap Donor Site Seroma Prevention: A Cohort Study.

BACKGROUND: Donor site seroma is the most common complication after latissimus dorsi (LD) flap harvest. This study aimed to evaluate the efficacy of negative-pressure wound therapy (NPWT) in preventing donor site seroma formation after the harvest of an LD flap for breast reconstruction. METHODS: In this prospective matched-pair study, 40 patients in whom an LD flap was harvested for breast reconstruction were enrolled. NPWT was used in 20 patients, and in a control group composed of another 20 patients, the conventional donor site dressing technique was used. Information was collected regarding postoperative complications, the incidence of seroma, total drainage volume, the number of percutaneous seroma aspirations, and the volume aspirated. RESULTS: In the NPWT group, the incidence of seroma formation after drain removal was significantly lower than in the control group (15% vs. 70%; odds ratio=0.07; relative risk, 0.24). Both the mean percutaneous aspirated volume (P=0.004) and the number of percutaneous aspirations (P=0.001) were also significantly lower in the NPWT group. There were no significant differences in the total drainage volume or the duration of wound drainage between the NPWT dressing group and the control group (P>0.05). CONCLUSIONS: This study showed that NPWT is a promising tool for reducing the incidence of seroma formation after removing the drain at the donor site after LD flap harvesting. It is a simple and safe technique.

Reconstruction of Penile Shaft Defects Following Silicone Injection by Bipedicled Anterior Scrotal Flap.

PURPOSE: Numerous causalities, including attempts at penile augmentation with silicone or paraffin, can lead to extensive circular penile shaft defects. Reconstruction is challenging and skin grafting is a suboptimal option despite its widespread use. We present a surgical technique for penile shaft reconstruction with a bipedicled anterior scrotal flap. MATERIALS AND METHODS: A retrospective data analysis was performed of patients treated for symptomatic penile siliconomas who underwent subsequent penile reconstruction with a bipedicled anterior scrotal flap between 2010 and 2015. The surgical technique is described and depicted in detail. RESULTS: A total of 43 men were treated with radical circular excision of penile siliconomas and extensive shaft defects were reconstructed with a bipedicled anterior scrotal flap. Mean ± SD age was 36.95 ± 11.27 years, mean followup duration was 10.69 ± 9.54 months and mean operative time was 2.53 ± 0.46 hours. The operation proved uneventful in all cases. Only minor complications were observed, such as partial necrosis in 9% of patients, hematoma of the donor site in 12% and partial wound disruption in 19%. The mean patient satisfaction score was 4.37 on a scale of 1 to 5. All patients reported postoperative erection ability and the ability to achieve sexual intercourse. CONCLUSIONS: We present a surgical technique to reconstruct extensive penile shaft defects with an axial scrotal flap, which provides well vascularized coverage with comparable donor skin quality and thickness. The results are associated with minor donor site morbidity, good functional and aesthetic outcomes, and high patient satisfaction.