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We sought to compare the safety profile of prepectoral breast reconstruction with total submuscular tissue expander reconstruction, previously our standard. Primary outcomes of interest in this retrospective cohort study were incidence of infection, hematoma, seroma, mastectomy flap necrosis, and reconstruction loss.Total submuscular and prepectoral with acellular dermal matrix reconstructions consecutively performed by a single surgeon (P.D.S.) between January 1, 2016, and December 31, 2019, were compared. Demographic and clinical characteristics, as well as complications and complication types, were extracted for all patients. A t test was used to assess differences in continuous variables. Multivariate logistics regression was used to assess the association between type of reconstruction and complication rate. The statistical significance was set at 0.05 for all comparisons.A total of 133 patients (234 breasts) were included. There was a significantly greater incidence of infection (16.5% vs 5.5%, P0.01) in the prepectoral/acellular dermal matrix cohort. However, reconstructive loss was low in both cohorts (2.5% and 3.0%, P = 0.83). Adjusted odds ratio for complications in the prepectoral cohort was 2.26, but this was not statistically significant (adjusted P = 0.24).Prepectoral breast reconstruction shares an overall complication profile that is not greater than that of total submuscular reconstruction. It is associated with a greater risk of infection; however, the ability to salvage the reconstruction with early, aggressive intervention results in low rates of reconstructive loss, comparable with those of total submuscular reconstruction.

Breast cancer-related lymphedema is a progressive disease that poses tremendous physical, psychosocial, and financial burden on patients. Immediate lymphaticovenular anastomosis at the time of axillary lymph node dissection is emerging as a potential therapeutic paradigm to decrease the incidence of breast cancer-related lymphedema in high-risk patients.Eighty-one consecutive patients underwent reverse lymphatic mapping and, when feasible, supermicrosurgical immediate lymphaticovenular anastomosis at the time of axillary lymph node dissection at a tertiary care cancer center. Patients were followed prospectively in a multidisciplinary lymphedema clinic (plastic surgery, certified lymphatic therapy, dietary, case management) at 3-month intervals with clinical examination, circumferential limb girth measurements, and bioimpedance spectroscopy. An institutional control cohort was assessed for the presence of objectively diagnosed and treated breast cancer-related lymphedema. Data were analyzed by a university statistician.Seventy-eight patients met inclusion, and 66 underwent immediate lymphaticovenular anastomosis. Mean follow-up was 250 days. When compared to a retrospective control group, the rate of lymphedema in patients who underwent immediate lymphaticovenular anastomosis was significantly lower (6 percent versus 44 percent; p0.0001). Patients with 6-month follow-up treated with combined adjuvant radiation therapy and chemotherapy had significantly greater risk of developing breast cancer-related lymphedema (p = 0.04) compared to those without combined adjuvant therapy. Arborized anastomotic technique had a statistically shorter operative time than end-to-end anastomosis (p = 0.005).This series of consecutive patients demonstrate a 6 percent incidence of early-onset breast cancer-related lymphedema with immediate lymphaticovenular anastomosis and an increased risk in those undergoing combined adjuvant treatment. These early data represent an encouraging and substantial decrease of breast cancer-related lymphedema in high-risk patients.Therapeutic, III.

Background Cancer-related lymphedema will affect 10% to 50% of breast cancer survivors. Early data show that immediate lymphatic reconstruction may help prevent breast cancer lymphedema; however, the details have not been fully elucidated. The purpose of this study was to evaluate the cohort of our first 100 patients for trends in demographics, treatment, and technique. Methods At a tertiary care cancer center, high-risk breast cancer-related lymphedema patients underwent axillary reverse lymphatic mapping and immediate lymphatic reconstruction. After institutional review board approval, demographics, technique, and outcomes were recorded. The first 100 patients were analyzed to compare the differences between the first 50 versus the second 50 patient cohorts. Results Of the first 100 axillary reverse lymphatic mapping performed, there was a significant difference in neoadjuvant chemotherapy with 81% in the earlier cohort versus 98% in the later cohort (P = 0.01). An arborized technique was used more frequently in the second cohort (82% vs 54%, P = 0.01). The incidence of lymphedema was lower in the latter cohort (7 patients vs 1 patient, P = 0.03). The first cohort was 12.2 times more likely to develop lymphedema despite lymphatic reconstruction than the second cohort (P = 0.03). Conclusions The data demonstrate multiple trends in the learning curve associated with immediate lymphatic reconstruction at a single institution including improvements in identifying and dissecting lymphatic structures, performing more anastomoses per patient, using the arborized technique more frequently, performing the operation with shorter operative times, and reducing the incidence of lymphedema.

Background: The spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has precipitated the worst global pandemic in a century, which has caused millions of infections and deaths as well as massive economic repercussions. Objective: As with any pathogenic virus, it is crucial to understand its unique interactions with the human immune system so that pharmaceutical and prophylactic interventions can be deployed to effectively control the pandemic. Methods: A literature search by using PubMed was conducted in 2020 with variants of the terms “COVID-19,” “SARS-CoV-2,” and “immunological response.” English language articles that presented original data about the immunologic response to coronavirus disease 2019 (COVID-19) were selected for review. This article reviewed the current understanding of the innate and adaptive immune responses to SARS-CoV-2 infection, including their relationship to current therapeutic and diagnostic strategies. Results: SARS-CoV-2 uses several unique molecular techniques to evade detection by the innate immune system early in the course of infection, and upregulation of these innate immune pathways may possibly accelerate the time to recovery and prevent severe disease. Although the majority of cases results in the patients' recovery, a significant proportion of infections result in deaths prompted by the host's inflammatory overreaction to the infection, a response that can be attenuated with corticosteroids and potentially other immune modulators. Conclusion: Current work by the scientific community to further understand how SARS-CoV-2 interacts with the human immune system will be invaluable to our response and preparedness for future coronavirus pandemics.

BACKGROUND RESULTS of replantation surgery following upper extremity traumatic amputation are extensively described in the literature, with success rates varying from 57 to 100 percent. The purpose of this study was to evaluate replantation success rate at a Level I trauma center over a 17-year period and to assess definable factors contributing to these results. METHODS A retrospective review of all digit and hand replantations at a Level I trauma center was performed using CPT codes from 2001 through 2018. Descriptive analyses, Mann-Whitney test, Kruskal-Wallis test, and logistic regressions were used. Significance was defined as p ≤ 0.05. RESULTS Analysis consisted of 76 patients with 101 amputated parts (93 digits and eight hands). Fifty-six single digit amputations (30 percent success rate), 37 multidigit injuries (22 percent digit success rate), and eight hand amputations (50 percent success rate) were attempted. The overall success rate was 25 of 76 patients (33 percent) and 29 of 101 parts (29 percent). The most common mechanism of injury was laceration (n = 56), followed by crush (n = 30), and avulsion (n = 11), with repair of laceration-type injuries having the greatest success rate (36 percent). CONCLUSIONS The authors report a lower success rate of hand and digit replantation than previously described in the literature. Whole hand and thumb replantations resulted in the highest survival rate in our series. Laceration mechanism showed a higher success rate than crush or avulsion-type injuries. The authors' modest results highlight the importance of effective internal auditing of low-volume replantation centers such as their own. Quality improvement measures are proposed for higher future success in replantation surgery at the authors' institution. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, IV.

The differential diagnoses for eosinophilia include allergic, infectious, autoimmune, and neoplastic diseases. We presented the case of a 79-year-old man with eosinophilia and elevated immunoglobulin E that persisted despite adequate treatment for possible environmental exposures. Further specialized testing based on his initial workup led to his diagnosis. This case highlights the importance of sequential and targeted testing to evaluate for rare causes of eosinophilia.

Background: The palmar aponeurosis or “A0 pulley” may play a role in trigger finger pathology. This study assesses the involvement of the A0 pulley in patients receiving trigger finger release. Methods: This single-surgeon, prospective, randomized clinical trial was conducted among consenting patients with symptomatic trigger finger. Intraoperative coin toss was used to randomize initial release of either the A0 or A1 pulley. Following release, active flexion and extension of the affected digit were examined. The remaining pulley was then released in sequence, and clinical trigger status was recorded. Results: Thirty fingers from 24 patients were released; 17 fingers received A0 release first, and 13 received A1 release. Following initial A0 release, 8 fingers (47%) demonstrated complete resolution of symptoms, 4 (24%) demonstrated improvement but incomplete resolution of triggering, and 5 (29.4%) demonstrated no improvement. Following initial A1 release, 6 fingers (46%) demonstrated complete resolution, 3 (23%) demonstrated improvement but incomplete resolution of triggering, and 4 (31%) demonstrated no improvement. All patients demonstrated complete resolution after surgical release of both sites. Neither initial A1 release nor initial A0 release was statistically associated with complete, incomplete, or failed symptom resolution. Conclusions: These data implicate the A0 pulley as the primary cause of 31% to 47% of trigger fingers in our study. Although larger trials are needed to validate these results, our study suggests that release of both A0 and A1 pulleys may offer greater symptom resolution than release of the A1 pulley alone.

Background Mastectomies are an integral part of breast cancer treatment for many patients.1 Of those patients, a significant number have previously undergone breast augmentation before being diagnosed with breast cancer. Therefore, we developed the novel technique of performing nipple- and implant-sparing mastectomies (NISMs) for women with prior breast augmentations. This study will assess the plausibility of using NISMs versus nipple-sparing mastectomies (NSMs) in this subgroup of patients by comparing the complication rates. Methods Data were collected on age, tumor size, tumor grade, receptors, and the interval between mastectomy and implant exchange for both groups. Descriptive statistics were used to summarize patient characteristics. Independent samples t tests, χ2 tests, and Fisher exact tests were used to compare the NISM and NSM cohorts. Logistic regression was used to assess the association between complications and mastectomy type and was summarized as an odds ratio with a 95% confidence interval. Results Fifteen patients underwent an NISM and 35 patients underwent an NSM. The overall rate of complications was less in NISM cases than in NSM cases (20% vs 27%). However, this difference was not statistically significant (odds ratio, 0.54; 95% confidence interval, 0.18-1.64; P = 0.278). Conclusions The overall complication rate was lower with NISMs compared with NSMs. Nipple- and implant-sparing mastectomy is a novel, viable, and safe option for patients with breast cancer and a history of submuscular breast augmentation.

Financial contributions from industry for physician-led research have been historically challenging to study in plastic surgery. However, as mandated by the Physician Payments Sunshine Act of 2013, the Open Payments Database (OPD) has increased transparency in payments from industry to physicians. This study aimed to analyze trends in industry-sponsored research funding for plastic surgeons. Using the OPD, research payments from industry made to plastic surgeons from 2014 to 2018 were examined. Total payments and number of payments were recorded by recipient's census region (e.g., Northeast, Midwest, South, West) and therapeutic area (e.g., breast prosthetics/reconstruction, wound healing/tissue engineering, software/instrumentation, biologics, cosmetics/injectables). Payments totaled across 5 years in each therapeutic area for each region were also analyzed. Location of company U.S. headquarters and therapeutic area were recorded. Statistical analyses were performed using SAS 9.4. Brown-Mood test, t test, Kruskal-Wallis, Mann-Whitney, and linear regression tests were used. Aggregated over 5 years, the greatest payment value was allocated to wound healing/tissue engineering, whereas the number of payments was highest in breast prosthetics/reconstruction. Private plastic surgeons receive significantly higher payments compared to academic plastic surgeons. With such findings, greater transparency and additional years of OPD data may provide further insight into industry influence on physician-led research in plastic surgery.

Socioeconomic status (SES) remains an important population health risk factor and impacts a patient's experience of care during breast cancer. This study explored the relationship between SES and quality of life and satisfaction in survivorship following breast cancer and reconstruction. All patients underwent breast reconstruction at a single academic center from 2013 to 2017. Patients completed the five quality of life and satisfaction domains of the BREAST-Q, a validated patient-reported outcome measure. Estimated home value using a web-based real estate website was used to approximate a patient's socioeconomic status. Correlations were evaluated using Pearson's correlation methods, where appropriate, as well as analysis of covariance. Data were stratified for comparison utilizing t tests and linear regression models. Significance was defined as P ≤ .05. Four hundred patients underwent 711 breast reconstructions during the study time period. Satisfaction with the breast (P = .038) and psychosocial well-being (P = .012) had significant positive correlations with increasing socioeconomic status. When stratifying patients' socioeconomic status into thirds, the upper third had significantly higher psychosocial well-being (P = .001), satisfaction with breasts (P = .010), and physical well-being of the chest (P = .001) than the lower third. Significance persisted even after controlling for cancer stage, treatment, complications, and baseline comorbidities. Higher socioeconomic status is associated with greater satisfaction with breast reconstruction and psychosocial well-being following breast cancer treatment. Providing added social, psychological, and emotional support networks may be beneficial long after the initial cancer treatment and reconstruction are complete. Patients of lower socioeconomic status may benefit from additional resources.

BREAST-Q is a validated measure of patient satisfaction and health-related quality of life following breast surgery. Limited evidence exists with regard to the influence of preoperative overall health status on BREAST-Q outcomes. The American Society of Anesthesiologists (ASA) physical status classification is representative of preoperative overall health and its impact on patient-reported outcomes can be assessed.Patients who received breast reconstruction at Yale New Haven Hospital between 2013 and 2018 and completed the BREAST-Q were enrolled in the study. Associations between BREAST-Q scores within modules and between modules and ASA were analyzed. Pearson's correlation and Spearman's Rho were used to characterize correlations between patient factors and BREAST-Q scores. Significantly correlated factors were entered into a general linear model (GLM) to control for confounding variables and isolate the effect of ASA on BREAST-Q scores.A total of 1136 patients underwent breast reconstruction of whom 489 patients completed the BREAST-Q. Increasing ASA indicative of worsening overall health was associated with a decreased BREAST-Q score for all modules except Physical Well-being of the Abdomen (p0.01 to p = 0.029). In a GLM controlling for relevant covariates, ASA remained a significant contributor for all modules except Physical Well-being of the Chest (p0.01 to p = 0.021). BREAST-Q scores decreased by approximately twice as much from ASA 1 to 2 compared to ASA 2 to 3.ASA classification is an independent predictor of BREAST-Q patient-reported outcomes following breast reconstruction. Communicating the potential impact of overall health may help reduce the discrepancy in postoperative satisfaction across ASA classifications.

Complex wounds are commonly thought to require aggressive surgical intervention to achieve healing. However, optimal healing results can often be achieved when greater emphasis is placed on optimizing patient factors prior to any surgical intervention. A retrospective review was performed of pressure ulcers and complex wound cases treated over 5 years at the Yale New Haven Wound Center. Optimal healing including clinical resolution of osteomyelitis and improved scarring was achieved when patient factors, such as glucose control and nutrition, were optimized. Surgical intervention can be more effective and even avoided entirely with the appropriate focus on optimizing patient factors.

Objectives: Up to 41% of intracerebral hemorrhages (ICH) are considered cryptogenic despite a thorough investigation to determine etiology. Certain over-the-counter supplements may increase proclivity to bleeding, and we hypothesize that specifically vitamin E may have an association with ICH and acutely elevated serum levels of α-tocopherol. Our aim is to report 3 cases of recently admitted patients with hypervitaminosis E and otherwise cryptogenic ICH. Methods: At our institution between January and December 2018, 179 patients were admitted with ICH with 73 imputed to be “cryptogenic” (without clear etiology as per Structural vascular lesions, Medication, Amyloid angiopathy, Systemic disease, Hypertension, or Undetermined and Hypertension, Amyloid angiopathy, Tumor, Oral anticoagulants, vascular Malformation, Infrequent causes, and Cryptogenic criteria). Of these, we found 3 (4.1%) clearly admitted to consistent use of vitamin E supplementation for which α-tocopherol levels were checked. We describe the clinical presentation and course of these patients and their etiologic and diagnostic evaluations including neuroimaging and α-tocopherol laboratory data. Results: All patients in this series were consistently consuming higher than recommended doses of vitamin E and developed acute ICH. The first 2 patients both had subcortical (thalamic) intraparenchymal hemorrhages while the third had an intraventricular hemorrhage. Serum α-tocopherol levels in patient A, B, and C were elevated at 30.8, 46.7, and 23.3 mg/L, respectively (normal range 5.7-19.9 mg/L) with a mean of 33.6 mg/L. No clear alternate etiologies to their ICH could be conclusively determined despite thorough workups. Conclusions: In patients with cryptogenic ICH, clinicians should consider hypervitaminosis E and check serum α-tocopherol level during admission. Reviewing the patient's pharmacologic history, including over-the-counter supplements such as vitamin E, may help identify its association, and its avoidance in the future may mitigate risk. With its known vitamin K antagonism, hypo-prothrombinemic effect, cytochrome p-450 interaction, and antiplatelet activity, vitamin E may not be as benign as presumed. Its consumption in nonrecommended doses may increase ICH risk, which may be underestimated and under-reported.

Roseola infantum is a clinical syndrome characterized by high fever followed by the emergence of a rash. Case reports have documented an association between bulging fontanelles and roseola. We propose a novel mechanism for the development of intracranial hypertension caused by human herpesvirus 6-induced cytokine elevation leading to increased cerebrospinal fluid production.

A recent major earthquake (M7.8), coupled with appropriate climatic conditions, led to significant destruction in Ecuador. Temperature variations, which may be induced by anthropogenic climate change, are often associated with changes in rainfall, humidity and pressure. Temperature and humidity are associated with ecological modifications that may favour mosquito breeding. We hypothesized that the disruptive ecological changes triggered by the earthquake, in the context of appropriate climatic conditions, led to an upsurge in Zika virus (ZIKV) infections. Here we show that, after controlling for climatic and socioeconomic conditions, earthquake severity was associated with incident ZIKV cases. Pre-earthquake mean maximum monthly temperature and post-earthquake mean monthly pressure were negatively associated with ZIKV incidence rates. These results demonstrate the dynamics of post-disaster vector-borne disease transmission, in the context of conducive/favourable climatic conditions, which are relevant in a climate change-affected world where disasters may occur in largely populated areas.

The tissue expansion process is done after mastectomies to increase the submuscular space in preparation for the placement of permanent breast implant. The process is often believed to be painful by patients who are often intimidated by the prospect of mechanically stretching out their skin and muscle. This study aims to quantify the pain experienced by patients and determine the different pain management techniques used. We used a case series approach, in which patients who were undergoing serial tissue expansion process were asked to rate their pain and anxiety on a scale from 1 to 10, using a questionnaire and the visual analog scale. Pain was rated during and after the expansion procedure, and patients were also surveyed to find the most commonly used and most effective pain management technique. Patients typically reported very little pain during and after the procedure, with an average of 0.4 to 2.5 pain experienced out of 10. The pain did not last, on average, longer than 1 day. Furthermore, the most widely used and most helpful pain medication was ibuprofen. During the tissue expansion procedure, the mean anxiety level was 0.64 (1.3). The findings show that tissue expansion process is a relatively low pain procedure and is not a contraindication for undergoing breast reconstruction. Ibuprofen, a mild treatment with few side effects, was efficacious in pain relief though most patients required no pain relief.

Objective We evaluated the sensitivity and specificity of the WHO immunological criteria for detecting antiretroviral therapy (ART) treatment failure in a cohort of Vietnamese patients. We conducted a stratified analysis to determine the effects of BMI, peer support, adherence to antiretroviral (ARV) drugs, age, and gender on the sensitivity and specificity of the WHO criteria. Methods We conducted a retrospective cohort study of 605 HIV-infected patients using data previously collected from a cluster randomized control trial study. We compared the sensitivity and specificity of CD4+ counts to the gold standard of virologic testing as a diagnostic test for ART failure at different time points of 12, 18, and 24 months. Results The sensitivity [95% confidence interval (CI)] of the WHO immunological criteria based on a viral load ≥ 1000 copies/mL was 12% (5%-23%), 14% (2%-43%), and 12.5% (2%-38%) at 12, 18, and 24 months, respectively. In the same order, the specificity was 93% (90%-96%), 98% (96%-99%), and 98% (96%-100%). The positive predictive values (PPV) at 12, 18, and 24 months were 22% (9%-40%), 20% (3%-56%), and 29% (4%-71%); the negative predictive values (NPV) at the same time points were 87% (84%-90%), 97% (95%-98%), and 96% (93%-98%). The stratified analysis revealed similar sensitivities and specificities. Conclusion The sensitivity of the WHO immunological criteria is poor, but the specificity is high. Although testing costs may increase, we recommend that Vietnam and other similar settings adopt viral load testing as the principal method for determining ART failure.

Self-organization processes are a major focus of current scientific interest worldwide. Novel materials research and development increasingly seeks to exploit ways in which matter self-organizes. Here, self-organization kinetics have been measured for electrospun fiber annealing. A key feature of such materials is a large surface-to-volume ratio. Fibers were spun from aqueous solutions of poly( l -ornithine) Br− (PLO) or co-poly( l -glutamic acid4, l -tyrosine1) Na+ (PLEY), model synthetic polypeptides. After crosslinking in situ, fibers were annealed in water at 22 °C. Analysis by infrared (IR) spectroscopy has revealed that annealing involved polymer restructuring within fibers on a time scale of 29 min for PLO and 63 min for PLEY. The largest changes in the distribution of polymer conformations occurred in the first 13 min of annealing. There was a substantial decrease in the amount of Na+ bound to PLEY fibers during annealing, according to energy-dispersive X-ray spectroscopy (EDX) analysis. Two parallel pathways provided a better account of the annealing trajectory than a single pathway with multiple transition states. This study advances current understanding of polypeptide-based materials and suggests approaches for applications development.

Summary:. Epidermolysis bullosa is a debilitating dermatologic disorder affecting the adhesive capability between the epidermis and dermis. The severe recessive dystrophic variant is caused by mutations in COL7A1, the gene encoding type VII collagen which is the major structural protein of the anchoring fibrils linking these 2 skin layers.1 The management of recessive dystrophic epidermolysis bullosa (RDEB) remains complex with no curative therapy. We present herein the novel use of a porcinederived extracellular matrix dressing to effectively treat extensive erosions in a newborn.

Mechan-ical properties of interest have included the averagediameter and tensile strength of individual fibers, andYoung’smodulus,porosity,andstrengthatbreakingoffibermats.Numeroussyntheticorganicpolymersandfeedstocksolvents have been utilized in an electrospinning context.Different polymers and processing conditions have beenfound to yield materials of different physical properties.Nevertheless, little is known about how to predict theproperties of individual fibers and fiber mats from theknowledge of polymer structure, feedstock solvent, andnecessary details of materialsprocessing. Making progressin this direction will surely require focusing attention onmodel polymers and a detailed assessment of elementalcontributions to macroscopic properties.Non-crosslinked polymers in an electrospun fiber willinteract with each other by a variety of non-covalent

This study characterizes a measles outbreak which occurred in Ecuador in 2011–2012, analyzing data from 3700 suspected cases of measles reported to Ecuador’s Ministry of Public Health. The study population had a large age range and included 333 confirmed cases of measles. The greatest number of cases were found in the

The effect of peer support on virologic and immunologic treatment outcomes among HIVinfected patients receiving antiretroviral therapy (ART) was assessed in a cluster randomized controlled trial in Vietnam. Seventy-one clusters (communes) were randomized in intervention or control, and a total of 640 patients initiating ART were enrolled. The intervention group received peer support with weekly home-visits. Both groups received first-line ART regimens according to the National Treatment Guidelines. Viral load (VL) (ExaVir™ Load) and CD4 counts were analyzed every 6 months. The primary endpoint was virologic failure (VL >1000 copies/ml). Patients were followed up for 24 months. Intention-to-treat analysis was used. Cluster longitudinal and survival analyses were used to study time to virologic failure and CD4 trends. Of 640 patients, 71% were males, mean age 32 years, 83% started with stavudine/lamivudine/nevirapine regimen. After a mean of 20.8 months, 78% completed the study, and the median CD4 increase was 286 cells/μl. Cumulative virologic failure risk was 7.2%. There was no significant difference between intervention and control groups in risk for and time to virologic failure and in CD4 trends. Risk factors for virologic failure were ART-non-naive status [aHR 6.9;(95% CI 3.2–14.6); p