Impact of Preoperative Continence on HoLEP Symptom Recovery: A Close Investigation of Patient-Reported Outcomes.

Introduction: Holmium laser enucleation of the prostate (HoLEP) is an increasingly utilized surgical intervention for benign prostatic hyperplasia (BPH) with lower urinary tract symptoms (LUTS). It is unclear how pre-HoLEP voiding performance (including pre-HoLEP incontinence) affects post-HoLEP urinary symptom performance and recovery which challenges effective patient counseling. Methods: This is a single-institution retrospective analysis of 266 patients who underwent HoLEP. Pre-HoLEP continence status was determined by patient report. Continence (severity and bother, severity broken into urge and stress) and LUTS (total IPSS score and QoL) were assessed preoperatively and 1 week (1wk), 1 month (1m), 3 months (3m), and 1-year (1y) post-HoLEP using the Michigan Incontinence Symptom Index (MISI) and International Prostate Symptom Score (IPSS), respectively. Primary outcome measures were MISI differences between groups at each time point. Results: Of the 376 patients who underwent HoLEP from two surgeons from 11/6/2020 to 12/18/2023, 266 were included in the study. Inclusion criteria were patients undergoing HoLEP during this period. There were no exclusion criteria. A total of 178 participants were continent and 88 were incontinent pre-HoLEP. Average age at time of HoLEP was 70.3 and 70.8 respectively, average preoperative prostate size measured by ultrasound or axial imaging was 109.0 g and 113.7 g, respectively. Based on MISI stress (#1-3) and urge (#4-6) items, pre-HoLEP Stress:Urge ratio in continent pre-HoLEP patients was 1.29:3.02. In the incontinent pre-HoLEP group, Stress:Urge was 2.45:6.18. MISI scores were statistically similar between cohorts at 1wk. Preop incontinent patients had a statistical and clinically significant improvement in MISI severity score at 1y post-HoLEP (5.62 n = 11 vs 10.170 n = 50, p = 0.013). IPSS total scores were statistically similar between cohorts at 1m and IPSS QoL scores were statistically similar at preop. At preop evaluation, urge symptoms were worse than stress symptoms in all cohorts. Conclusions: Preoperative incontinence should not be considered a predictor of poor intermediate or long-term post-HoLEP outcomes. Pre-HoLEP incontinence is likely largely urge-related.

Sterile Draping of Operative Microscopes in Breast Free Flaps and Surgical Site Infections.

BACKGROUND: Operative microscopes are traditionally draped in single-use plastic to prevent infection theoretically. The necessity of this routine in breast free flap surgery is unclear. Alternatively, sterile wrapping of microscope handles would reduce operating room waste and provide a more cost-effective and environmentally sustainable approach to sterility. This study aimed to determine whether the draping technique used during abdominally based free flaps (Ab-FF) influenced the rate of surgical site infections. METHODS: We conducted a retrospective review of Ab-FF performed consecutively between March 2017 and August 2022. Patient demographics, comorbidities, perioperative data, and postoperative complications were collected. The primary outcomes included postoperative surgical site infections and environmental impact. RESULTS: Of the 281 identified breasts reconstructed with Ab-FF, operating microscopes were sterilely covered with microscope drapes (n = 215) or handle covers (n = 66) composed of polyethylene-based plastic. Overall, postoperative infections occurred in 9.3% of cases (n = 26) in either the recipient breast (n = 11, 3.9%) or abdominal donor site (n = 15, 5.3%), primarily due to S. aureus and Streptococcus species. The handle (n = 6, 9.1%) and drape (n = 20, 9.3%) cohorts had similar infection rates with no sequelae of operative complications. In multivariate analysis, radiation was the only independent predictor of postoperative infection, while bilateral reconstructions were independently protective. Replacing a microscope drape with a handle reduces carbon emissions by 1276 grams of CO2 and direct costs by $7.84 per item. CONCLUSIONS: The principles of "Lean and Green" surgery prioritize reducing operating room generated waste to achieve financial and environmental sustainability. This cohort study of 281 breast free flaps demonstrates that switching from whole microscope draping to handle wrapping was not associated with an increased rate or odds of infection. Adopting a microscope handle wrapping protocol decreased the carbon footprint and operative costs. The results of this study offer evidence to support adoption and further exploration of pragmatic, cost-effective, and sustainable approaches to microsurgical breast reconstruction.

Human erythroid progenitors express antigen presentation machinery.

Early-life immune exposures can profoundly impact lifelong health. However, functional mechanisms underlying fetal immune development remain incomplete. Erythrocytes are not typically considered active immune mediators, primarily because erythroid precursors discard their organelles as they mature, thus losing the ability to alter gene expression in response to stimuli. Erythroid progenitors and precursors circulate in human fetuses and neonates. Although there is limited evidence that erythroid precursors are immunomodulatory, our understanding of the underlying mechanisms remains inadequate. To define the immunobiological role of fetal and perinatal erythroid progenitors and precursors, we analyzed single cell RNA-sequencing data and found that transcriptomics support erythroid progenitors as putative immune mediators. Unexpectedly, we discovered that human erythroid progenitors constitutively express Major Histocompatibility Complex (MHC) class II antigen processing and presentation machinery, which are hallmarks of specialized antigen presenting immune cells. Furthermore, we demonstrate that erythroid progenitors internalize and cleave foreign proteins into peptide antigens. Unlike conventional antigen presenting cells, erythroid progenitors express atypical costimulatory molecules and immunoregulatory cytokines that direct the development of regulatory T cells, which are critical for establishing maternal-fetal tolerance. Expression of MHC II in definitive erythroid progenitors begins during the second trimester, coinciding with the appearance of mature T cells in the fetus, and is absent in primitive progenitors. Lastly, we demonstrate physical and molecular interaction potential of erythroid progenitors and T cells in the fetal liver. Our findings shed light on a unique orchestrator of fetal immunity and provide insight into the mechanisms by which erythroid cells contribute to host defense.

Indocyanine Green Angiography for Detecting Quantitative Perfusion Changes in Deep Inferior Epigastric Perforator Flap Breast Reconstruction With Second Venous Drainage.

BACKGROUND: This study aims to compare perfusion dynamics using indocyanine green videoangiography before and after the creation of a second venous anastomosis between the superficial inferior epigastric vein and the retrograde internal mammary vein (IMV) in deep inferior epigastric perforator (DIEP) flap breast reconstructions. METHODS: Indocyanine green videoangiography performed during DIEP flap reconstructions was analyzed prospectively. The areas of interest were above the perforators with the highest intensity (complete perfusion), the most distal lateral edge of the flap (partial perfusion), and the next lowest intensity (ischemic). We compared the zone intensities before and after the second venous anastomosis, assessing venous drainage patency and functionality. Patient characteristics, operative details, and complications were collected. RESULTS: Seven patients (10 breasts) underwent DIEP reconstruction. Mean age was 54.5 ± 12.4 years. Mean operative duration was 575.5 ± 172.6 minutes. Donors included DIEV (n = 10, 100.0%), superficial inferior epigastric vein (n = 9, 90.0%), and superficial circumflex epigastric vein (n = 1, 10.0%). All DIEVs were anastomosed to the antegrade IMV (n = 10, 100.0%). Superficial inferior epigastric veins were anastomosed to the retrograde IMV (n = 10, 100.0%). Mean peak intensities of the complete perfusion zone before and after the second venous anastomosis were 160.7 ± 42.1 and 188 ± 42.1, respectively ( P = 0.163). Mean peak intensities of the partial perfusion zone were 100.8 ± 21.5 and 152 ± 31.5, respectively ( P < 0.001). Mean peak intensities of the ischemic zone were 90.4 ± 37.4 and 143.4 ± 45.3, respectively ( P = 0.012). CONCLUSION: These findings highlight the potential benefits of the super drainage technique in enhancing perfusion and reducing complications, emphasizing the need for further investigation and consideration of this technique in clinical practice.

MicroRNA-206 as a potential cholesterol-lowering drug is superior to statins in mice.

Hypercholesterolemia is frequently intertwined with hepatosteatosis, hypertriglyceridemia, and hyperglycemia. This study is designed to assess the therapeutic efficacy of miR-206 in contrast to statins in the context of managing hypercholesterolemia in mice. We previously showed that miR-206 is a potent inhibitor of de novo lipogenesis (DNL), cholesterol synthesis, and gluconeogenesis in mice. Given that these processes occur within hepatocytes, we employed a mini-circle (MC) system to deliver miR-206 specifically to hepatocytes (designated as MC-miR-206). A single intravenous injection of MC-miR-206 maintained high levels of miR-206 in the liver for at least two weeks, thereby maintaining suppression of hepatic DNL, cholesterol synthesis, and gluconeogenesis. MC-miR-206 significantly reduced DNA damage, endoplasmic reticulum and oxidative stress, and hepatic toxicity. Therapeutically, both MC-miR-206 and statins significantly reduced total serum cholesterol and triglycerides as well as LDL cholesterol and VLDL cholesterol in mice maintained on the normal chow and high-fat high-cholesterol diet. MC-miR-206 reduced liver weight, hepatic triglycerides and cholesterol, and blood glucose, while statins slightly increased hepatic cholesterol and blood glucose and failed to affect levels of liver weight and hepatic triglycerides. Mechanistically, miR-206 alleviated hypercholesterolemia by inhibiting hepatic cholesterol synthesis, while statins increased HMGCR activity, hepatic cholesterol synthesis, and fecal-neutral steroid excretion. MiR-206 facilitates the regression of hypercholesterolemia, hypertriglyceridemia, hyperglycemia, and hepatosteatosis. MiR-206 outperforms statins by reducing hyperglycemia, hepatic cholesterol levels, and hepatic toxicity.

Acellular Dermal Matrix-Assisted, Prosthesis-Based Breast Reconstruction: A Comparison of SurgiMend PRS, AlloDerm, and DermACELL.

BACKGROUND: Acellular dermal matrices (ADMs) are frequently employed in immediate prosthesis-based breast reconstruction (iPBR) to provide structural support. Despite differences in ADM derivatives, few studies directly compare their outcomes in the setting of iPBR. We sought to conduct a large head-to-head study comparing 3 ADMs used across our institution. METHODS: A multicenter retrospective review of patients undergoing iPBR with SurgiMend PRS (fetal bovine-derived; Integra Lifesciences, Princeton, NJ), AlloDerm (human-derived; LifeCell Corp, Bridgewater, NJ), or DermACELL (human-derived; Stryker Corp, Kalamazoo, MI) between January 2014 to July 2022 was performed. Primary outcomes included rates of unplanned explantation and total reconstructive failure. Secondary outcomes included 90-day postoperative complications and long-term rates of capsular contracture development. RESULTS: A total of 738 patients (1228 breasts) underwent iPBR during the study period; 405 patients received DermACELL (54.9%), 231 received AlloDerm (31.3%), and 102 received SurgiMend PRS (13.8%). Rates of short-term complications, total reconstruction failure, reoperation within 90 days, capsular contracture, and unplanned explantation were comparable. These findings remained true upon multivariate analysis accounting for baseline differences between cohorts, whereby ADM type was not an independent predictor of any outcome of interest. Conversely, factors such as body mass index, diabetes mellitus, smoking history, neoadjuvant and adjuvant chemotherapy, adjuvant radiation, skin-sparing mastectomy, Wise pattern and periareolar incisions, use of tissue expanders, and a subpectoral plane of insertion were significant predictors of postoperative complications. CONCLUSION: Low rates of complications support the equivalency of fetal bovine and human-derived ADMs in iPBR. Patient characteristics and operative approach are likely more predictive of postoperative outcomes than ADM derivative alone.

We've all been wrong about provisional tic disorder.

BACKGROUND: Provisional Tic Disorder (PTD) is common in childhood. The received wisdom among clinicians is that PTD is short-lived and mild, with at most a few tics, and rarely includes complex tics, premonitory phenomena or comorbid illnesses. However, such conclusions come from clinical experience, with biased ascertainment and limited follow-up. METHODS: Prospective study of 89 children with tics starting 0-9 months ago (median 4 months), fewer than half from clinical sources. Follow-up at 12 (± 24, 36, 48) months after the first tic. RESULTS: At study entry, many children had ADHD (39), an anxiety disorder (27), OCD (9) or enuresis (17). All had at least two current tics, with a mean total since onset of 6.9 motor and 2.0 phonic tics. Forty-one had experienced a complex tic, and 69 could suppress some tics. Tics were clinically meaningful: 64 had tics severe enough for a clinical trial, and 76 families sought medical attention for the tics. At 12 months, 79 returned, and 78 still had tics. Of these, 29 manifested no tics during history and extended examination, but only via audio-visual monitoring when the child was seated alone. Only 12/70 now had plans to see a doctor for tics. Most who returned at 2-4 years still had tics known to the child and family, but medical impact was low. CONCLUSIONS: Our results do not contradict previous data, but overturn clinical lore. The data strongly argue against the longstanding but arbitrary tradition of separating tic disorders into recent-onset versus chronic.

Readmission Trends and Outcomes of Transcatheter Edge-to-Edge Repair of Mitral Regurgitation With and Without Anemia.

BACKGROUND: Anemia is associated with worse clinical outcomes in cardiac patients. We aim to investigate the clinical outcomes and readmission rates in anemic patients undergoing transcatheter edge-to-edge repair (TEER) for severe mitral valve regurgitation (MR). METHODS: The National Readmissions Database (NRD) from 2015 to 2018 was queried using the ICD-10 codes to identify patients admitted for TEER. Patients were divided into anemic and non-anemic sub-groups. Univariate and multivariate analyses were performed. Cardiovascular outcomes were assessed between cohorts at index admission and readmissions at 30, 90, and 180 days. STATA v.17 was used for analysis (StataCorp LLC, Texas, USA). RESULTS: Our final cohort included 28,995 patients who had undergone TEER in the United States between 2016 and 2019. About 1,434 (4.9%) had a diagnosis of anemia. The mean age of patients who had TEER with anemia and TEER without anemia was 76.9 ± 10.8 vs. 77.7 ± 10.2, respectively. In the adjusted model, anemic patients had higher odds of acute kidney injury (AKI) (aOR 2.21; 95% [CI 1.81-2.6; p<0.001]), HF (aOR 1.75; 95% [CI 1.28-2.3; p<0.001]), myocardial infarction (MI) (aOR 1.54; 95% [CI 1.01-2.33; p<0.041]), major adverse cardiac and cerebrovascular events (MACCE) (aOR 1.72; 95% [CI 1.2-9-2.3; p<0.001]), and net adverse event (aOR 1.85; 95% [CI 1.32-2.59; p<0.001]). The anemic group's readmission rate was overall higher at 30, 90, and 180 days from 2016 to 2019. CONCLUSION: Anemia was associated with increased adverse clinical outcomes and more extended hospital stays in patients with anemia who had undergone TEER procedures compared to the non-anemic group.

Gender Disparities in Quality of Life Outcomes Among Kidney Stone Formers.

Purpose: This study investigates gender-based disparities in health-related quality of life (HRQOL) outcomes among kidney stone patients and explores potential contributing factors. Methods: A retrospective review of medical records at the University of Rochester Medical Center was conducted on 2199 new urolithiasis patients who completed the Wisconsin Stone Quality of Life Questionnaire (WISQOL) standardized on a 0 to 100 scale. Demographic and clinical data were collected. Statistical analyses included univariate tests, chi-squared tests, and multivariate linear regression. Results: Of the 2199 kidney stone patients, 1085 (49.3%) were women. Women reported significantly lower quality of life (QoL) scores compared with men (71.6 vs 80.7; p < 0.001), and this persisted across all domains, including social impact (80.2 vs 86.9; p < 0.001), emotional impact (67.3 vs 77.1; p < 0.001), disease impact (67.3 vs 77.1; p < 0.001), and impact vitality (62.6 vs 72.9; p < 0.001). Female gender was identified as an independent predictor of diminished QoL scores, along with younger age, symptomatic status, number of surgeries, and presence of a psychosocial comorbidity. Conclusions: Our findings suggest that women with kidney stones experience lower HRQOL compared with men, even accounting for clinical and demographic factors. Although this study provides preliminary insights, additional research is needed to validate these findings in broader and more varied populations.

Protein engineering a PhotoRNR chimera based on a unifying evolutionary apparatus among the natural classes of ribonucleotide reductases.

Ribonucleotide reductases (RNRs) are essential enzymes that catalyze the de novo transformation of nucleoside 5'-di(tri)phosphates [ND(T)Ps, where N is A, U, C, or G] to their corresponding deoxynucleotides. Despite the diversity of factors required for function and the low sequence conservation across RNRs, a unifying apparatus consolidating RNR activity is explored. We combine aspects of the protein subunit simplicity of class II RNR with a modified version of Escherichia coli class la photoRNRs that initiate radical chemistry with light to engineer a mimic of a class II enzyme. The design of this RNR involves fusing a truncated form of the active site containing α subunit with the functionally important C-terminal tail of the radical-generating ß subunit to render a chimeric RNR. Inspired by a recent cryo-EM structure, a [Re] photooxidant is located adjacent to Y356[ß], which is an essential component of the radical transport pathway in class I RNRs. Combination of this RNR photochimera with cytidine diphosphate (CDP), adenosine triphosphate (ATP), and light resulted in the generation of Y356• along with production of deoxycytidine diphosphate (dCDP) and cytosine. The photoproducts reflect an active site chemistry consistent with both the consensus mechanism of RNR and chemistry observed when RNR is inactivated by mechanism-based inhibitors in the active site. The enzymatic activity of the RNR photochimera in the absence of any ß metallocofactor highlights the adaptability of the 10-stranded αß barrel finger loop to support deoxynucleotide formation and accommodate the design of engineered RNRs.

Comparison of Outcomes after Autologous Breast Reconstruction: Latissimus Dorsi with Immediate Fat Transfer versus Abdominally Based Free Flaps.

BACKGROUND: Autologous breast reconstruction confers favorable patient reports of satisfaction and quality of life compared with implant-based reconstruction over a lifetime. The latissimus dorsi with immediate fat transfer (LIFT) is an alternative approach to abdominally based free flaps (Ab-FF), which expands fully autologous reconstruction to nonmicrosurgeons. This study compared the 2 procedures concerning their clinical and patient-reported outcomes 1 year postoperatively. METHODS: The authors conducted a retrospective review of LIFTs and Ab-FFs performed between March of 2017 and August of 2022. The primary outcomes were postoperative complications, reoperations, and longitudinal BREAST-Q scores. BREAST-Q modules included Satisfaction with Breasts, Satisfaction with Abdomen, Satisfaction with Back, Psychosocial Well-being, Physical Well-being: Chest, Physical Well-being: Abdomen, Physical Well-being: Back, and Sexual Well-being. RESULTS: Of the 281 included patients (408 breasts), 211 received Ab-FF and 70 received LIFT. One-year follow-up (median [interquartile range], 12 [12] months) demonstrated that Ab-FF independently predicted dehiscence, reoperation procedures, and revisional surgery. LIFT independently increased the odds of seroma. Obesity predicted dehiscence, and bilateral reconstructions predicted revisional fat grafting. BREAST-Q scores fluctuated over time but were similar across all measured domains by 1 year postoperatively. CONCLUSIONS: Although Ab-FF is the standard approach for fully autologous reconstruction, LIFT procedures may be associated with a less complicated postoperative course while eliciting similar patient-reported outcomes. LIFT may be preferred to limit postoperative complications, particularly in patients with obesity. LIFT can be used by plastic surgeons who are not trained in microsurgical procedures or do not have an environment that fosters Ab-FF. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.

Non-ischemic rupture of the posteromedial papillary muscle due to Streptococcus agalactiae endocarditis.

Papillary muscle rupture is usually caused by myocardial infarction although rare cases of non-ischemic etiology have also been described. Among these, infective endocarditis represents an important cause. Herein, we report a case due to Streptococcus agalactiae involving the posteromedial papillary muscle. Learning objective: Non-ischemic papillary muscle rupture should be suspected when there is no evidence of atherosclerotic coronary artery disease. In the febrile patient, infective endocarditis should be considered in the differential diagnosis.

Pharmacotherapy and revascularization strategies of peripheral artery disease.

The global epidemiological transition of atherosclerotic vascular diseases is witnessing a rapid redistribution of its burden, shifting from high-income to low- and middle-income countries. With a wide clinical spectrum, spanning from intermittent claudication to more complex critical limb threatening ischemia, nonhealing ulcers, gangrene as well as acute limb ischemia, peripheral artery disease is often faced with the challenges of under-diagnosis and under-treatment despite its high prevalence. The management of peripheral arterial disease in patients with multiple comorbidities presents a formidable challenge and remains a pressing global health concern. In this review, we aim to provide an in-depth overview of the pathophysiology of peripheral artery disease and explore evidence-based management strategies encompassing pharmacological, lifestyle, interventional, and surgical approaches. By addressing these challenges, the review contributes to a better understanding of the evolving landscape of peripheral artery disease, offering insights into effective and holistic management strategies.

Expanded Indications for Nipple-Sparing Mastectomy and Immediate Breast Reconstruction in Patients Older Than 60 Years.

INTRODUCTION: Although nipple-sparing mastectomy (NSM) and immediate breast reconstruction (IBR) have long been praised for excellent cosmetic results and the resultant psychosocial benefits, the feasibility and safety of these procedures in patients older than 60 years have yet to be demonstrated in a large population. METHODS: Patients undergoing NSM with or without IBR at the MedStar Georgetown University Hospital between 1998 and 2017 were included. Patient demographics, surgical intervention, and complication and recurrence events were retrieved from electronic medical records. Primary outcomes were recurrence and complication rates by age groups older and younger than 60 years. RESULTS: There were 673 breasts from 397 patients; 58 (8.6%) older than 60 years and 615 (91.4%) younger than 60 years with mean follow-up of 5.43 (0.12) years. The mean age for those older than 60 was 63.9 (3.3) years, whereas that for those younger than 60 was 43.1 (7.9) years (P < 0.001). The older than 60 group had significantly higher prevalence of diabetes, rates of therapeutic (vs prophylactic) and unilateral (vs bilateral) NSM, and mastectomy weight. However, there were no significant differences by age group in complication rates or increased risk of locoregional or distant recurrence with age. CONCLUSIONS: Based on similar complication profiles in both age groups, we demonstrate safety and feasibility of both NSM and IBR in the aging population. Despite increased age and comorbidity status, appropriately selected older women were able to achieve similar outcomes to younger women undergoing NSM with or without IBR.

A meta-analysis of outcomes of aspiration thrombectomy for high and intermediate-risk pulmonary embolism.

BACKGROUND: Aspiration thrombectomy has gained popularity in patients with massive and sub-massive pulmonary embolism (PE) and having contraindications to thrombolysis. METHODS: A meta-analysis was conducted including studies on aspiration thrombectomy in patients with high-risk and intermediate-risk PE. The pooled odds ratio for efficacy parameters, including change in heart rate, blood pressure and right ventricle/left ventricle (RV/LV) ratio, and safety parameters including major bleeding and stroke, was calculated using a random effects model. RESULTS: The meta-analysis of 24 selected studies revealed that intermediate and high-risk pulmonary embolism (PE) patients demonstrated significant improvements: modified Miller score odds ratio of 10.60, mean pulmonary artery pressure reduction by 0.04 mm Hg, and an overall all-cause mortality odds ratio of 0.10. Considerable heterogeneity was observed in various outcomes. CONCLUSION: Aspiration thrombectomy has success rates in both high-risk and intermediate-risk PE, however, procedural risks, including bleeding, must be anticipated.

Curricula Mapping of Physician Associate/Physician Assistant-Comparable Professions Worldwide Using the Learning Opportunities, Objectives, and Outcomes Platform.

ABSTRACT: Given the international growth of physician associate/physician assistant (PA) and PA-comparable professions, it is crucial to understand the educational curricula of PA/PA-comparable professions worldwide. This article provides an overview of the process and development of the PA/PA-comparable curricula mapping design applying an international framework. It uses an innovative web-based tool, the Learning Opportunities, Objectives, and Outcomes Platform (LOOOP), to map and evaluate course content, teaching strategies, assessment formats, and learning outcomes. It highlights the project's rationale, challenges, and future implications.