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Spinophilin is an F-actin binding and protein phosphatase 1 (PP1) targeting protein that acts as a scaffold of PP1 to its substrates. Spinophilin knockout (Spino-/-) mice have decreased fat mass, increased lean mass, and improved glucose tolerance, with no difference in feeding behaviors. Although spinophilin is enriched in neurons, its roles in nonneuronal tissues, such as ß cells of the pancreatic islets, are unclear. We have corroborated and expanded upon previous studies to determine that Spino-/- mice have decreased weight gain and improved glucose tolerance in two different models of obesity. We have identified multiple putative spinophilin-interacting proteins isolated from intact pancreas and observed increased interactions of spinophilin with exocrine, ribosomal, and cytoskeletal protein classes that normally act to mediate peptide hormone production, processing, and/or release in Leprdb/db and/or high-fat diet-fed (HFF) models of obesity. In addition, we have found that spinophilin interacts with proteins from similar classes in isolated islets, suggesting a role for spinophilin in the pancreatic islet. Consistent with a pancreatic ß cell type-specific role for spinophilin, using our recently described conditional spinophilin knockout mice, we found that loss of spinophilin specifically in pancreatic ß cells improved glucose tolerance without impacting body weight in chow-fed mice. Our data further support the role of spinophilin in mediating pathophysiological changes in body weight and whole body metabolism associated with obesity. Our data provide the first evidence that pancreatic spinophilin protein interactions are modulated by obesity and that loss of spinophilin specifically in pancreatic ß cells impacts whole body glucose tolerance.NEW & NOTEWORTHY To our knowledge, these data are the first to demonstrate that obesity impacts spinophilin protein interactions in the pancreas and identify spinophilin specifically in pancreatic ß cells as a modulator of whole body glucose tolerance.
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Proteínas dos Microfilamentos , Obesidade , Pâncreas , Células Secretoras de Insulina/fisiologia , Proteínas dos Microfilamentos/genética , Proteínas dos Microfilamentos/metabolismo , Obesidade/complicações , Obesidade/genética , Obesidade/patologia , Pâncreas/patologia , Pancreatopatias/patologia , Técnicas de Inativação de Genes , Masculino , Feminino , Animais , Camundongos , Aumento de Peso/genética , Diabetes Mellitus/patologiaRESUMO
OBJECTIVE: To describe our experience utilizing epoprostenol for pulmonary hypertension (PH) in infants with congenital diaphragmatic hernia (CDH) requiring extracorporeal life support (ECLS). STUDY DESIGN: We retrospectively reviewed infants diagnosed with CDH who required ECLS at our institution from 2013-2023. Data collected included demographics, disease characteristics, medication administration patterns, and hospital outcomes. We first compared infants who received intravenous epoprostenol and those who did not. Among infants who received epoprostenol, we compared survivors and non-survivors. Chi-square/Fisher's exact and Mann-Whitney tests were used, with significance p<0.05. RESULTS: Fifty-seven infants were included; 40 (70.2%) received epoprostenol. Infants receiving epoprostenol had lower observed/expected total fetal lung volume (O/E TFLV) on MRI (20 vs. 26.2%, p=0.042) as well as higher prenatal frequency of liver-up (90 vs 64.7%, p=0.023) and "severe" classification (67.5 vs 35.3%, p=0.007). Survival with and without epoprostenol was comparable (60% vs. 64%, p=0.23). Of those receiving epoprostenol, both survivors and non-survivors had similar prenatal indicators of disease severity. Most (80%) of hernia defects were classified as Type C/D and 68% were repaired <72 hours after ECLS cannulation. The median age at initiation of epoprostenol was day of life 6 (IQR: 4, 7) in survivors and 8 (IQR: 7, 16) in non-survivors (p=0.012). Survivors had shorter ECLS duration (11 vs 20 days, p=0.049). Of non-survivors, refractory PH was the cause of death for 13 infants (81%). CONCLUSION: In infants with CDH requiring ECLS, addition of epoprostenol appears promising and earlier initiation may affect survival.
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RATIONALE & OBJECTIVE: A history of prior abdominal procedures may influence the likelihood of referral for peritoneal dialysis (PD) catheter insertion. To guide clinical decision making in this population, this study examined the association between prior abdominal procedures and outcomes in patients undergoing PD catheter insertion. STUDY DESIGN: Retrospective cohort study. SETTING & PARTICIPANTS: Adults undergoing their first PD catheter insertion between November 1, 2011, and November 1, 2020, at 11 institutions in Canada and the United States participating in the International Society for Peritoneal Dialysis North American Catheter Registry. EXPOSURE: Prior abdominal procedure(s) defined as any procedure that enters the peritoneal cavity. OUTCOMES: The primary outcome was time to the first of (1) abandonment of the PD catheter or (2) interruption/termination of PD. Secondary outcomes were rates of emergency room visits, hospitalizations, and procedures. ANALYTICAL APPROACH: Cumulative incidence curves were used to describe the risk over time, and an adjusted Cox proportional hazards model was used to estimate the association between the exposure and primary outcome. Models for count data were used to estimate the associations between the exposure and secondary outcomes. RESULTS: Of 855 patients who met the inclusion criteria, 31% had a history of a prior abdominal procedure and 20% experienced at least 1 PD catheter-related complication that led to the primary outcome. Prior abdominal procedures were not associated with an increased risk of the primary outcome (adjusted HR, 1.12; 95% CI, 0.68-1.84). Upper-abdominal procedures were associated with a higher adjusted hazard of the primary outcome, but there was no dose-response relationship concerning the number of procedures. There was no association between prior abdominal procedures and other secondary outcomes. LIMITATIONS: Observational study and cohort limited to a sample of patients believed to be potential candidates for PD catheter insertion. CONCLUSION: A history of prior abdominal procedure(s) does not appear to influence catheter outcomes following PD catheter insertion. Such a history should not be a contraindication to PD. PLAIN-LANGUAGE SUMMARY: Peritoneal dialysis (PD) is a life-saving therapy for individuals with kidney failure that can be done at home. PD requires the placement of a tube, or catheter, into the abdomen to allow the exchange of dialysis fluid during treatment. There is concern that individuals who have undergone prior abdominal procedures and are referred for a catheter might have scarring that could affect catheter function. In some institutions, they might not even be offered PD therapy as an option. In this study, we found that a history of prior abdominal procedures did not increase the risk of PD catheter complications and should not dissuade patients from choosing PD or providers from recommending it.
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Cateteres de Demora , Diálise Peritoneal , Sistema de Registros , Humanos , Masculino , Feminino , Diálise Peritoneal/métodos , Pessoa de Meia-Idade , Estudos Retrospectivos , Cateteres de Demora/efeitos adversos , Falência Renal Crônica/terapia , Falência Renal Crônica/epidemiologia , Canadá/epidemiologia , Idoso , Estados Unidos/epidemiologia , Abdome/cirurgia , Adulto , Cateterismo/métodos , Cateterismo/efeitos adversosRESUMO
INTRODUCTION: Texas consistently accounts for approximately 10% of annual national births, the second highest of all US states. This temporal study aimed to evaluate incidences of neonatal surgical conditions across Texas and to delineate regional pediatric surgeon accessibility. METHODS: The Texas Birth Defects Registry was queried from 1999 to 2018, based on 11 well-established regions. Nine disorders (30,476 patients) were identified as being within the operative scope of pediatric surgeons: biliary atresia (BA), pyloric stenosis (PS), Hirschsprung's disease, stenosis/atresia of large intestine/rectum/anus, stenosis/atresia of small intestine, tracheoesophageal fistula/esophageal atresia, gastroschisis, omphalocele, and congenital diaphragmatic hernia. Annual and regional incidences were compared (/10,000 births). Statewide pediatric surgeons were identified through the American Pediatric Surgical Association directory. Regional incidences of neonatal disorder per surgeon were evaluated from 2010 to 2018 as a surrogate for provider disparity. RESULTS: PS demonstrated the highest incidence (14.405/10,000), while BA had the lowest (0.707/10,000). Overall, incidences of PS and BA decreased significantly, while incidences of Hirschsprung's disease and small intestine increased. Other diagnoses remained stable. Regions 2 (48.24/10,000) and 11 (47.79/10,000) had the highest incidence of neonatal conditions; Region 6 had the lowest (34.68/10,000). Three rural regions (#2, 4, 9) lacked pediatric surgeons from 2010 to 2018. Of regions with at least one surgeon, historically underserved regions (#10, 11) along the Texas-Mexico border consistently had the highest defect per surgeon rates. CONCLUSIONS: There are temporal and regional differences in incidences of neonatal conditions treated by pediatric surgeons across Texas. Improving access to neonatal care is a complex issue that necessitates collaborative efforts between state legislatures, health systems, and providers.
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Atresia Biliar , Atresia Esofágica , Gastrosquise , Doença de Hirschsprung , Estenose Pilórica Hipertrófica , Recém-Nascido , Criança , Humanos , Texas/epidemiologia , Constrição Patológica , Atresia Esofágica/cirurgiaRESUMO
INTRODUCTION: Although pneumoperitoneum from necrotizing enterocolitis or spontaneous intestinal perforation is a surgical emergency, risk stratification to determine which neonates benefit from initial peritoneal drainage (PD) is lacking. METHODS: Using a single-center retrospective review of very low birth weight neonates under 1500 g who underwent PD for pneumoperitoneum (January 2015 to December 2023) from necrotizing enterocolitis or spontaneous intestinal perforation, two cohorts were created: drain "responders" (patients managed definitively with PD; includes placement of a second drain) and "nonresponders" (patients who underwent subsequent laparotomy or died after PD). Antenatal/postnatal characteristics, periprocedural clinical data, and hospital outcomes were compared between responders and nonresponders using Student's t-test, chi-squared test, or Kruskal-Wallis test as appropriate, with P < 0.05 considered significant. RESULTS: Fifty-six neonates were included: 31 (55%) drain responders and 25 (45%) nonresponders. Birth weight, gestational age, sex, ethnicity, use of postnatal steroids, and enteral feeds were similar between the cohorts. Nonresponders had higher base deficits (-3.4 versus -5.0, P = 0.032) and FiO2 (0.25 versus 0.52, P = 0.001) after drain placement. Drain responders had significantly shorter lengths of stay (89 versus 148 days, P = 0.014) and lower mortality (6.4% versus 56%, P < 0.001). A subgroup analysis of the nonresponders showed no differences in birth weight, vasopressor requirement, FiO2, or postdrain base deficit between nonresponders who had a drain alone versus laparotomy following drain placement. CONCLUSIONS: PD remains a viable initial therapy for pneumoperitoneum in premature very low birth weight neonates (< 1500 g), demonstrating clinical response in more than half. Ongoing clinical assessment and judgment is imperative after drain placement to ensure continued clinical improvement.
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INTRODUCTION: In complex pediatric surgical oncology, surgical planning is contingent upon data gathered from preoperative imaging. Three-dimensional (3D) modeling and printing has been shown to be beneficial for adult presurgical planning, though pediatric literature is less robust. The study reviews our institutional experience with the use of 3D image segmentation and printed models in approaching resection of extracranial solid tumors in children. METHODS: This is a single institutional series from 2021 to 2023. Models were based on computed tomography and magnetic resonance imaging studies, optimized for 3D imaging. The feasibility and creation of the models is reviewed, including specific techniques, software, and printing materials from our institution. Clinical implications for surgical planning are also described, along with detailed preoperative and intraoperative images. RESULTS: 3D modeling and printing was performed for four pediatric patients diagnosed with extracranial solid tumors. Diagnoses included Ewing sarcoma, hepatoblastoma, synovial sarcoma, and osteosarcoma. No intraoperative complications or discrepancies with the preoperative 3D-printed model were noted. No evidence of local recurrence was identified in any patient thus far. CONCLUSION: Our institutional series demonstrates a wide spectrum of clinical application for 3D modeling and printing technology within pediatric surgical oncology. This technology may aid in surgical planning for both resection and reconstruction, can be applied to a diverse breadth of diagnoses, and may potentially augment patient and/or family education about their condition.
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Sarcoma de Ewing , Sarcoma Sinovial , Criança , Humanos , Imageamento Tridimensional/métodos , Imageamento por Ressonância Magnética , Sarcoma de Ewing/diagnóstico por imagem , Sarcoma de Ewing/cirurgia , Tomografia Computadorizada por Raios XRESUMO
Implications of repeated resections of pulmonary metastasis (PM) are not well documented in the modern era. Fifteen children underwent two (n = 8), three (n = 3), or four or more (n = 3) resections (total = 38 procedures), most commonly for osteosarcoma (71%). Operative approach included muscle-sparing thoracotomy (71%), non-muscle-sparing thoracotomy (18%), and video-assisted thoracoscopy (11%). Median resected nodules per procedure was four (range = 1-95). Prolonged air leaks were the most common postoperative complication (29%). Median hospital stay was 4 days, and no children were discharged with or have required oxygen. Event-free survival is 67% at median follow-up time of 54 months, with an overall survival rate of 64%. Repeat resection of PM appears to be well tolerated, without prolonged hospital stays or compromised pulmonary function.
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BACKGROUND: Bone health is affected by chronic childhood disorders including type-1 diabetes mellitus (T1DM). We conducted this randomized controlled trial with the objective of investigating the effect of 1-year supplementation of vitamin-D with milk or with pharmacological calcium on bone mass accrual in underprivileged Indian children and youth with T1DM. METHODS: 5 to 23year old (nâ¯=â¯203) underprivileged children and youth with T1DM were allocated to one of three groups: Milk (group A-received 200 ml milk + 1000 international unit (IU) vitamin-D3/day), Calcium supplement (group B-received 500 mg of calcium carbonate + 1000 IU of vitamin-D3/day) or standard of care/control (group C). Anthropometry, clinical details, biochemistry, diet (3-day 24-h recall), physical activity (questionnaires adapted for Indian children) and bone health parameters (using dual-energy X-ray absorptiometry and peripheral quantitative computed tomography- DXA and pQCT respectively) were evaluated at enrolment and end of 12 month intervention. RESULTS: Total body less head(TBLH) bone mineral content (BMC(g)) and bone mineral density (BMD(gm/cm2)) were significantly higher at end of study in girls in both supplemented groups (TBLHBMC-A-1011.8⯱â¯307.8, B-983.2⯱â¯352.9, C-792.8⯱â¯346.8. TBLHBMD-A-± 0.2, B-0.8⯱â¯0.2, C-0.6⯱â¯0.2, pâ¯<â¯0.05). Z score of lumbar spine bone mineral apparent density of supplemented participants of both sexes was significantly higher than controls (Boys- A-0.7⯱â¯1.1, B-0.6⯱â¯1.4, C- -0.7⯱â¯1.1; Girls- A-1.1⯱â¯1.1, B-0.9⯱â¯3.4, C- -1.7⯱â¯1.3, pâ¯<â¯0.05). A significantly higher percentage increase was found in cortical thickness in girls in both supplemented groups (A-17.9⯱â¯28.6, B-15.3⯱â¯16.5, C-7.6⯱â¯26.2); the differences remained after adjusting for confounders. CONCLUSION: Supplementation with milk or pharmacological calcium (+vitaminD3) improved bone outcomes-particularly geometry in children with T1DM with more pronounced effect in girls. Pharmacological calcium may be more cost effective in optimising bone health in T1DM in resource limited settings.
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Absorciometria de Fóton , Densidade Óssea , Diabetes Mellitus Tipo 1 , Suplementos Nutricionais , Humanos , Criança , Feminino , Diabetes Mellitus Tipo 1/tratamento farmacológico , Masculino , Densidade Óssea/efeitos dos fármacos , Adolescente , Índia , Adulto Jovem , Pré-Escolar , Leite , Vitamina D/uso terapêutico , Vitamina D/administração & dosagem , Carbonato de Cálcio/administração & dosagem , Carbonato de Cálcio/uso terapêutico , Tomografia Computadorizada por Raios X , Animais , Colecalciferol/administração & dosagem , Colecalciferol/uso terapêutico , Cálcio da Dieta/administração & dosagem , Conservadores da Densidade Óssea/uso terapêutico , Conservadores da Densidade Óssea/administração & dosagemRESUMO
AIM: Vascular and peritoneal access are essential elements for sustainability of chronic dialysis programs. Data on availability, patterns of use, funding models, and workforce for vascular and peritoneal accesses for dialysis at a global scale is limited. METHODS: An electronic survey of national leaders of nephrology societies, consumer representative organizations, and policymakers was conducted from July to September 2018. Questions focused on types of accesses used to initiate dialysis, funding for services, and availability of providers for access creation. RESULTS: Data from 167 countries were available. In 31 countries (25% of surveyed countries), >75% of patients initiated haemodialysis (HD) with a temporary catheter. Seven countries (5% of surveyed countries) had >75% of patients initiating HD with arteriovenous fistulas or grafts. Seven countries (5% of surveyed countries) had >75% of their patients starting HD with tunnelled dialysis catheters. 57% of low-income countries (LICs) had >75% of their patients initiating HD with a temporary catheter compared to 5% of high-income countries (HICs). Shortages of surgeons to create vascular access were reported in 91% of LIC compared to 46% in HIC. Approximately 95% of participating countries in the LIC category reported shortages of surgeons for peritoneal dialysis (PD) access compared to 26% in HIC. Public funding was available for central venous catheters, fistula/graft creation, and PD catheter surgery in 57%, 54% and 54% of countries, respectively. CONCLUSION: There is a substantial variation in the availability, funding, workforce, and utilization of vascular and peritoneal access for dialysis across countries regions, with major gaps in low-income countries.
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Derivação Arteriovenosa Cirúrgica , Falência Renal Crônica , Nefrologia , Diálise Peritoneal , Humanos , Diálise Renal , Peritônio , Cateteres de Demora , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/terapia , Derivação Arteriovenosa Cirúrgica/efeitos adversosRESUMO
BACKGROUND: There is a lack of contemporary data describing global variations in vascular access for hemodialysis (HD). We used the third iteration of the International Society of Nephrology Global Kidney Health Atlas (ISN-GKHA) to highlight differences in funding and availability of hemodialysis accesses used for initiating HD across world regions. METHODS: Survey questions were directed at understanding the funding modules for obtaining vascular access and types of accesses used to initiate dialysis. An electronic survey was sent to national and regional key stakeholders affiliated with the ISN between June and September 2022. Countries that participated in the survey were categorized based on World Bank Income Classification (low-, lower-middle, upper-middle, and high-income) and by their regional affiliation with the ISN. RESULTS: Data on types of vascular access were available from 160 countries. Respondents from 35 countries (22% of surveyed countries) reported that > 50% of patients started HD with an arteriovenous fistula or graft (AVF or AVG). These rates were higher in Western Europe (n = 14; 64%), North & East Asia (n = 4; 67%), and among high-income countries (n = 24; 38%). The rates of > 50% of patients starting HD with a tunneled dialysis catheter were highest in North America & Caribbean region (n = 7; 58%) and lowest in South Asia and Newly Independent States and Russia (n = 0 in both regions). Respondents from 50% (n = 9) of low-income countries reported that > 75% of patients started HD using a temporary catheter, with the highest rates in Africa (n = 30; 75%) and Latin America (n = 14; 67%). Funding for the creation of vascular access was often through public funding and free at the point of delivery in high-income countries (n = 42; 67% for AVF/AVG, n = 44; 70% for central venous catheters). In low-income countries, private and out of pocket funding was reported as being more common (n = 8; 40% for AVF/AVG, n = 5; 25% for central venous catheters). CONCLUSIONS: High income countries exhibit variation in the use of AVF/AVG and tunneled catheters. In low-income countries, there is a higher use of temporary dialysis catheters and private funding models for access creation.
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Derivação Arteriovenosa Cirúrgica , Saúde Global , Diálise Renal , Diálise Renal/economia , Humanos , Falência Renal Crônica/terapia , Falência Renal Crônica/economia , Dispositivos de Acesso Vascular/economia , Nefrologia , Países Desenvolvidos , Países em DesenvolvimentoRESUMO
PURPOSE: To address patient health literacy, the American Medical Association and the National Institutes of Health recommend that readability of patient education materials should not exceed an eighth grade reading level. However, patient-facing materials often remain above the recommended average reading level. Current online calculators provide readability scores; however, they lack the ability to provide text-specific feedback, which may streamline the process of simplifying patient materials. The purpose of this study was to evaluate Chat Generative Pretrained Transformer (ChatGPT) 3.5 as a tool for optimizing patient-facing hand surgery education materials through reading level analysis and simplification. METHODS: The readability of 18 patient-facing hand surgery education materials was compared by a traditional online calculator for reading level and ChatGPT 3.5. The original excerpts were then entered into ChatGPT 3.5 and simplified by the artificial intelligence tool. The simplified excerpts were scored by the same calculators. RESULTS: The readability scores for the original excerpts from the online calculator and ChatGPT 3.5 were similar. The simplified excerpts' scores were lower than the originals, with a mean of 7.28, less than the maximum recommended 8. CONCLUSIONS: The use of ChatGPT 3.5 for the purpose of simplification and readability analysis of patient-facing hand surgery materials is efficient and may help facilitate the conveyance of important health information. ChatGPT 3.5 rendered readability scores comparable with traditional readability calculators, in addition to excerpt-specific feedback. It was also able to simplify materials to the recommended grade levels. CLINICAL RELEVANCE: By confirming ChatGPT3.5's ability to assess and simplify patient education materials, this study offers a practical solution for potentially improving patient comprehension, engagement, and health outcomes in clinical settings.
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The purpose of this study is to describe the treatment strategies and outcomes of nonsyndromic single-suture sagittal craniosynostosis based on the patient's age at intervention. Studies from MEDLINE, Scopus, and Cochrane Central Register of Controlled Trials were systematically searched for patients with nonsyndromic single-suture sagittal craniosynostosis. Inclusion criteria encompassed studies with follow-up of at least 12 months, minimum of 25 patients per cohort, and first-time surgical intervention. The risk of bias in nonrandomized studies of intervention tool [Risk Of Bias In Non-randomized Studies-of Interventions (ROBINS-I)] was applied. A total of 49 manuscripts with 3316 patients met criteria. Articles were categorized based on age at intervention; 0 to 6, older than 6 to 12, and older than 12 months. Fifteen of the manuscripts described interventions in more than 1 age group. From the 49 articles, 39 (n=2141) included patients 0 to 6 months old, 15 (n=669) discussed patients older than 6 to 12 months old, and 9 (n=506) evaluated patients older than 12 months old. Follow-up ranged from 12 to 144 months. Over 8 types of open surgical techniques were identified and 5 different minimally invasive procedures were described. Minimally invasive procedures were exclusively seen in the youngest patient cohort, while open cranial vault reconstructions were often seen in the 2 older cohorts. Endoscopic surgery and open conservative procedures are indicated for younger patients, while complex open cranial vault reconstructions are common in older patients. However, there is no consensus on one approach over the other. Even with the analysis of this review, we cannot factor a strong conclusion on a specific technique.
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Craniossinostoses , Humanos , Idoso , Recém-Nascido , Lactente , Craniossinostoses/cirurgia , Crânio/cirurgia , Procedimentos Neurocirúrgicos , Endoscopia , Resultado do TratamentoRESUMO
Autologous ear reconstruction remains a gold standard surgical technique for the treatment of external ear deformities. This highly technical procedure requires experience, an understanding of aesthetic principles, and a surgical approach that can consistently produce optimal results. As an experienced microtia surgeon having trained under Dr Satoru Nagata, the senior author has emphasized the importance of appropriate surgical tools during this procedure. Here, we present results of a novel surgical handle and gouge meant to optimize complex cartilage carving. The senior author regularly holds microtia workshops to help train individuals around the United States. During 2 of such workshops held in 2022, participants were given access to both the standard, commercially available surgical gouge as well as a prototype of a novel surgical gouge developed by the authors. Participants were then given a Likert-scale survey to assess their subjective feedback for both tools. Twenty-seven total participants completed the postworkshop survey. Cumulatively, the results demonstrated that participants rated the custom gouge significantly higher than its counterpart (4.2 versus 3.2, P<0.001). They also had a significantly higher likelihood of using the custom gouge again (4.1 versus 3.2, P=0.023). The custom gouge designed by the senior author demonstrated higher subjective ratings when compared with what is currently available on the market. This serves as a primary validation study that demonstrates feasibility for further assessment in a true operative setting.
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Mandibular distraction has variable outcomes in Treacher-Collins syndrome. Dual syndromic diagnosis is a rare occurrence that complicates management. Here, the authors present a patient with Treacher-Collins syndrome and severe retrognathia requiring tracheostomy who failed repeat mandibular distraction and decannulation. A genetic workup later revealed Angelman syndrome with severe developmental delay. We discuss explanations for difficulties encountered during mandibular distraction as well as surgical options for patients with Treacher-Collins who fail multiple attempts at decannulation. Overall, patients with dual diagnoses can exhibit an underlying problem in bone formation and mineralization, which challenges any attempt at craniofacial manipulation.
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OBJECTIVE: Microtia is a congenital ear deformity with variability in surgical techniques and tools across surgeons pursuing an autologous reconstruction. Different techniques have emerged over time, and surgeons opt for various tools to aid in creating the complex three-dimensional cartilaginous ear framework. The purpose of this study was to understand the current state of microtia reconstruction in the United States. METHODS: Microtia surgeons affiliated with the nonprofit, Ear Community, were invited to complete a 20-item survey. Data were collected on demographic information regarding surgeons, considerations when approaching microtia repair in patients, and techniques and comfort levels. Additional data were collected on materials, tools, flaps, and skin grafts used for reconstruction. RESULTS: Twenty-two surgeons responded to the survey reporting 3 different techniques learned and utilized in practice including the Brent, Nagata, and Firmin techniques. About two-thirds of surgeons were "extremely comfortable" with their techniques and one-third were "extremely uncomfortable" or "somewhat uncomfortable." Most respondents reported using a tunneled temporoparietal fascial flap or a posterior fascial flap along with a full-thickness skin graft for the second stage (ear elevation). Most surgeons utilized a combination of scalpels and gouges when carving the ear framework along with sutures or wire. CONCLUSIONS: This study highlights the current state of autogenous microtia reconstruction underscoring the variability in approaches and preferences. These data may guide future directions that aim to improve patient outcomes. Surgeons may gain insight into different practices and choose to adopt different aspects to enhance their surgical approach.
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INTRODUCTION: In children requiring venoarterial (VA) extracorporeal membrane oxygenation (ECMO) for long durations, conversion to venovenous (VV) support may be advantageous. The purpose of this study was to evaluate the feasibility and safety of conversion from VA to VV ECMO. METHODS: This is a retrospective review of all children who underwent conversion from VA to VV ECMO at a single institution, from 2015 to 2022. Indications for and methods of conversion were examined as well as adverse events including re-operation, ischemic complications, renal failure, and mortality. RESULTS: Of 422 pediatric patients on initial VA ECMO, 4 children (0.9%) underwent conversion from VA to VV support. The indications for cannulation were: respiratory failure due to COVID19, respiratory failure due to congenital diaphragmatic hernia, cardiac dysfunction following heart transplant, and sepsis with associated left ventricular dysfunction. The indications for conversion were bleeding from the arterial cannula and ongoing respiratory failure. The median time to conversion was 6.5 days (range 4-54 days) and the median length of ECMO run was 34.5 days. Three patients required renal replacement therapy with two progressing to long-term dialysis. There were no ischemic limb complications although one patient developed a femoral artery pseudoaneurysm that required re-operation. Three patients survived to discharge. One patient was unable to be decannulated after conversion and mechanical support was withdrawn. CONCLUSIONS: Conversion to VV ECMO from initial VA ECMO cannulation is feasible but a rare event. For patients with cardiac stability but continued need for respiratory support, conversion to VV ECMO can be considered.
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BACKGROUND: This study evaluates change in practice patterns in facelift surgery based on a 15-year review of tracer data collected by the American Board of Plastic Surgery as part of the Continuous Certification process. METHODS: Tracer data for facelift was reviewed from 2006 to 2021. The 15-year collection period was divided into an "early cohort (EC)" from 2006 to 2014 and a "recent cohort (RC)" from 2015 to 2021. RESULTS: Of 3400 facelifts (1710 EC/1690 RC) performed, 18% were done in hospital and 76% were done in an accredited office facility. Ninety one percent of patients were female with an average age of 61 years. There was an increase in the number of secondary facelifts (4% EC vs 18% RC; p < 0.001) and an increased number of patients concerned about volume loss/deflation (25% EC vs 37% RC; p < 0.001). The surgical approach to the SMAS involved plication (40%), flaps (35%), SMASectomy (22%) and MACS lift (6%). One percent of facelifts were subperiosteal and 8% skin-only. Significantly more surgeons used the lateral SMAS flap (14% EC vs 18% RC, p < 0.005), while less used an extended SMAS flap (21% vs 18%; p = 0.001) and MACS lift (10% EC vs 6% RC; p = 0.021) techniques. The concomitant use of facial fat grafting is becoming more common (15% EC vs 24% RC, p = 0.0001). CONCLUSIONS: A 15-year review of ABPS tracer data provides an excellent venue for the objective assessment of the current status of facelift surgery, and key changes in practice patterns during that time. LEVEL OF EVIDENCE III: 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 .
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Ritidoplastia , Sistema Musculoaponeurótico Superficial , Cirurgia Plástica , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Ritidoplastia/métodos , Padrões de Prática Médica , Estudos Retrospectivos , Sistema Musculoaponeurótico Superficial/cirurgiaRESUMO
BACKGROUND: Outcomes studies for abdominal wall reconstruction (AWR) in the setting of previous oncologic extirpation are lacking. We sought to evaluate long-term outcomes of AWR using acellular dermal matrix (ADM) after extirpative resection, compare them to primary herniorrhaphy, and report the rates and predictors of postoperative complications. METHODS: We conducted a retrospective cohort study of patients who underwent AWR after oncologic resection from March 2005 to June 2019 at a tertiary cancer center. The primary outcome was hernia recurrence (HR). Secondary outcomes included surgical site occurrences (SSOs), surgical site infection (SSIs), length of hospital stay (LOS), reoperation, and 30-day readmission. RESULTS: Of 720 consecutive patients who underwent AWR during the study period, 194 (26.9%) underwent AWR following resection of abdominal wall tumors. In adjusted analyses, patients who had AWR after extirpative resection were more likely to have longer LOS (ß, 2.57; 95%CI, 1.27 to 3.86, p < 0.001) than those with primary herniorrhaphy, but the risk of HR, SSO, SSI, 30-day readmission, and reoperation did not differ significantly. In the extirpative cohort, obesity (Hazard ratio, 6.48; p = 0.003), and bridged repair (Hazard ratio, 3.50; p = 0.004) were predictors of HR. Radiotherapy (OR, 2.23; p = 0.017) and diabetes mellites (OR, 3.70; p = 0.005) were predictors of SSOs. Defect width (OR, 2.30; p < 0.001) and mesh length (OR, 3.32; p = 0.046) were predictors of SSIs. Concomitant intra-abdominal surgery for active disease was not associated with worse outcomes. CONCLUSIONS: AWR with ADM following extirpative resection demonstrated outcomes comparable with primary herniorrhaphy. Preoperative risk assessment and optimization are imperative for improving outcomes.
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Parede Abdominal , Hérnia Ventral , Humanos , Parede Abdominal/cirurgia , Hérnia Ventral/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Recidiva Local de Neoplasia/cirurgia , Recidiva Local de Neoplasia/complicações , Herniorrafia/efeitos adversos , Infecção da Ferida Cirúrgica/etiologia , Infecção da Ferida Cirúrgica/cirurgia , Telas Cirúrgicas/efeitos adversos , RecidivaRESUMO
Background: Extracorporeal membrane oxygenation (ECMO) is widely utilized for severe cardiopulmonary insufficiency, but its application to the oncologic population has been debated given concern for increased risk of infection. This study aims to analyze the implications of infections acquired during ECMO runs in patients with malignancy. Methods: The Extracorporeal Life Support Organization (ELSO) database was queried for patients with an International Classification of Diseases code of neoplasms over the last two decades (2000-2019). Culture-proven infections during ECMO runs were analyzed and compared to previously reported data for all ECMO runs. Results: Two thousand, seven hundred and fifty-seven patients met inclusion criteria. Infection acquired during ECMO run was found in 687 patients, a significantly greater proportion compared to all ECMO runs (24.9% vs 11.7%; P = .001). Adult patients had a significantly higher rate of infection (27.0%; P < .001) compared to neonatal (11.0%) and pediatric (21.4%) patients. Prevalence of infection was highest in pulmonary ECMO (29.0%), while the infection rate standardized with ECMO duration was highest in extracorporeal cardiopulmonary resuscitation (55.03/1000-day ECMO run). Compared with ECMO for all diagnoses, the prevalence of Candida and Klebsiella infection was significantly higher in adult and pediatric oncologic patients. Regardless of the pathogen, the presence of infection was not associated with lower survival (38.6% vs 40.0%; P = .522). Conclusions: Oncologic patients had a significantly higher infection rate while on ECMO compared with the general ECMO population. However, the prognostic impact of these infections was minimal, thus ECMO should not be withheld in oncologic patients solely with concern for infection.
Assuntos
Oxigenação por Membrana Extracorpórea , Recém-Nascido , Adulto , Humanos , Criança , Estudos Retrospectivos , Oxigenação por Membrana Extracorpórea/efeitos adversos , Prevalência , Prognóstico , Sistema de RegistrosRESUMO
BACKGROUND: While many studies evaluated outcomes of abdominal wall reconstruction with biologic mesh, long-term data is lacking. In this study, we sought to analyze the outcomes of complex AWR with biologic mesh in a robust cohort of patients with a mean follow up of 8 years. METHODS: We conducted a longitudinal study of AWR patients from 2005 to 2019. Hernia recurrence was the primary outcome, and surgical site occurrence was the secondary outcome. Predictive/protective factors were identified using a Cox proportional hazards regression models. RESULTS: We identified 109 consecutive patients who met the inclusion criteria. Patient's mean (± SD) age was 57.5 ± 11.8 years, mean body mass index was 30.7 ± 7.2 kg/m2, and mean follow-up time was 96.2 ± 15.9 months. Fifty-six percent had clean defects, 34% had clean-contaminated defects, and 10% had contaminated/infected defects. Patients had a mean defect size of 261 ± 199.6 cm2 and mean mesh size of 391.3 ± 160.2 cm2. Nineteen patients (17.4%) developed HR at the final follow-up date. Obesity was independently associated with a four-fold higher risk of HR (hazard ratio, 3.98; 95%CI, 1.34 to 14.60, p = 0.02). SSOs were identified in 24.8% of patients. A prior hernia repair was associated with a three-fold higher risk of SSOs (Odds ratio, 3.13; 95%CI, 1.10 to 8.94, p = 0.03). No patient developed mesh infection. CONCLUSION: These longitudinal data demonstrate that complex AWR with biologic mesh provides long-term durable outcomes with acceptable HR and SSO rates despite high contamination levels, patients complexity, and large defect size.