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1.
Ann Surg ; 280(2): 261-266, 2024 Aug 01.
Article in English | MEDLINE | ID: mdl-38126756

ABSTRACT

OBJECTIVE: To compare hospital surgical performance in older and younger patients. BACKGROUND: In-hospital mortality after surgical procedures varies widely among hospitals. Prior studies suggest that failure-to-rescue rates drive this variation for older adults, but the generalizability of these findings to younger patients remains unknown. METHODS: We performed a retrospective cohort study of patients ≥18 years undergoing one of 10 common and complex general surgery operations in 16 states using the Healthcare Cost and Utilization Projects State Inpatient Databases (2016-2018). Patients were split into 2 populations: patients with Medicare ≥65 (older adult) and non-Medicare <65 (younger adult). Hospitals were sorted into quintiles using risk-adjusted in-hospital mortality rates for each age population. Correlations between hospitals in each mortality quintile across age populations were calculated. Complication and failure-to-rescue rates were compared across the highest and lowest mortality quintiles in each age population. RESULTS: We identified 579,582 patients treated in 732 hospitals. The mortality rate was 3.6% among older adults and 0.7% among younger adults. Among older adults, high- relative to low-mortality hospitals had similar complication rates (32.0% vs 29.8%; P = 0.059) and significantly higher failure-to-rescue rates (16.0% vs 4.0%; P < 0.001). Among younger adults, high-relative to low-mortality hospitals had higher complications (15.4% vs 12.1%; P < 0.001) and failure-to-rescue rates (8.3% vs 0.7%; P < 0.001). The correlation between observed-to-expected mortality ratios in each age group was 0.385 ( P < 0.001). CONCLUSIONS: High surgical mortality rates in younger patients may be driven by both complication and failure-to-rescue rates. There is little overlap between low-mortality hospitals in the older and younger adult populations. Future work must delve into the root causes of this age-based difference in hospital-level surgical outcomes.


Subject(s)
Hospital Mortality , Surgical Procedures, Operative , Humans , Retrospective Studies , Aged , Male , Female , Middle Aged , Surgical Procedures, Operative/mortality , United States , Age Factors , Adult , Postoperative Complications/epidemiology , Postoperative Complications/mortality , Hospitals/statistics & numerical data , Aged, 80 and over , General Surgery
2.
Ann Surg ; 2024 Jul 25.
Article in English | MEDLINE | ID: mdl-39051106

ABSTRACT

OBJECTIVE: To establish whether Accreditation Council for Graduate Medical Education Milestones predict future performance of general surgery trainees. SUMMARY BACKGROUND DATA: Milestones provide bi-annual assessments of trainee progress across six competencies. It is unknown whether the Milestones predict surgeon performance after the transition to independent practice. METHODS: We performed a retrospective cohort study of surgeons with complete Milestone assessments in the fourth and fifth clinical years who treated patients in acute care hospitals within Florida, New York, and Pennsylvania, 2015-2018. To account for the multiple ways in which the Milestone assessments might predict post-graduation outcomes, we included 120 Milestones features in our elastic net machine learning models. The primary outcome was risk-adjusted patient death or serious morbidity. RESULTS: 278 general surgeons were included in the study. Milestone assessments 6-months into the fourth clinical year displayed a normal score distribution while multicollinearity and low score discrimination at the final assessment period were detected. Individual Milestones features from the Patient Care, Professionalism, and Systems-based Practice domains were most predictive of patient-related outcomes. For example, surgeons with worse patient outcomes had significantly lower scores in Patient Care 3 when compared to surgeons with better patient outcomes (High DSM, yes: 2.86 vs. no: 3.04, P=0.011). CONCLUSIONS: The Milestones features that were most predictive of better patient outcomes related to intraoperative skills, ethical principles, and patient navigation and safety, measured 12-18 months prior to graduation. The development of a parsimonious set of evidence-based Milestones that better correlate with surgeon experience could enhance surgical education.

3.
Ann Surg ; 280(2): 345-352, 2024 Aug 01.
Article in English | MEDLINE | ID: mdl-38348669

ABSTRACT

OBJECTIVE: The aim of this study was to develop and validate an instrument to measure Belonging in Surgery among surgical residents. BACKGROUND: Belonging is the essential human need to maintain meaningful relationships and connections to one's community. Increased belongingness is associated with better well-being, job performance, and motivation to learn. However, no tools exist to measure belonging among surgical trainees. METHODS: A panel of experts adapted a belonging instrument for use among United States surgery residents. After administration of the 28-item instrument to residents at a single institution, a Cronbach alpha was calculated to measure internal consistency, and exploratory principal component analyses were performed. Multiple iterations of analyses with successively smaller item samples suggested the instrument could be shortened. The expert panel was reconvened to shorten the instrument. Descriptive statistics measured demographic factors associated with Belonging in Surgery. RESULTS: The overall response rate was 52% (114 responses). The Cronbach alpha among the 28 items was 0.94 (95% CI: 0.93-0.96). The exploratory principal component analyses and subsequent Promax rotation yielded 1 dominant component with an eigenvalue of 12.84 (70% of the variance). The expert panel narrowed the final instrument to 11 items with an overall Cronbach alpha of 0.90 (95% CI: 0.86, 0.92). Belonging in Surgery was significantly associated with race (Black and Asian residents scoring lower than White residents), graduating with one's original intern cohort (residents who graduated with their original class scoring higher than those that did not), and inversely correlated with resident stress level. CONCLUSIONS: An instrument to measure Belonging in Surgery was validated among surgical residents. With this instrument, Belonging in Surgery becomes a construct that may be used to investigate surgeon performance and well-being.


Subject(s)
General Surgery , Internship and Residency , Humans , Female , Male , Pilot Projects , General Surgery/education , Surveys and Questionnaires , Adult , United States , Psychometrics , Reproducibility of Results
4.
Heart Fail Rev ; 2024 Jun 19.
Article in English | MEDLINE | ID: mdl-38898187

ABSTRACT

Inherited cardiomyopathies are genetic diseases that can lead to heart failure and sudden cardiac death. These conditions tend to run in families, following an autosomal dominant pattern where first-degree relatives have a 50% chance of carrying the pathogenic variant. Despite significant advancements and increased accessibility of genetic testing, accurately predicting the phenotypic expression of these conditions remains challenging due to the inherent variability in their clinical manifestations and the incomplete penetrance observed. This poses challenges in providing patient care and effectively communicating the potential risk of future disease to patients and their families. To address these challenges, this review aims to synthesize the available evidence on penetrance, expressivity, and factors influencing disease expression to improve communication and risk assessment for patients with inherited cardiomyopathies and their family members.

5.
World J Surg ; 48(1): 110-120, 2024 01.
Article in English | MEDLINE | ID: mdl-38463201

ABSTRACT

Introduction: Adrenocortical carcinoma (ACC) is a notoriously aggressive cancer with a dismal prognosis, especially for patients with metastatic disease. Metastatic ACC is classically a contraindication to operative management. Here, we evaluate the impact of primary tumor resection and metastasectomy on survival in metastatic ACC. Methods: We performed a retrospective cohort study of patients with metastatic ACC (2010-2019) utilizing the National Cancer Database. The primary outcome was overall survival (OS). Cox proportional hazards models were developed to evaluate the associations between surgical management and survival. Propensity score matching (PSM) was utilized to account for selection bias in receipt of surgery. Results: Of 976 subjects with metastatic ACC, 38% underwent surgical management. Median OS across all patients was 7.6 months. On multivariable Cox proportional hazards regression, primary tumor resection alone (HR: 0.523; p<0.001) and primary resection with metastasectomy (HR: 0.372; p<0.001) were significantly associated with improved OS. Metastasectomy alone had no association with OS (HR: 0.909; p=0.740). Primary resection with metastasectomy was associated with improved OS over resection of the primary tumor alone (HR: 0.636; p=0.018). After PSM, resection of the primary tumor alone remained associated with improved OS (HR 0.593; p<0.001), and metastasectomy alone had no survival benefit (HR 0.709; p=0.196) compared with non-operative management; combined resection was associated with improved OS over primary tumor resection alone (HR 0.575, p=0.008). Conclusion: In metastatic ACC, patients may benefit from primary tumor resection alone or in combination with metastasectomy, however further research is required to facilitate appropriate patient selection.


Subject(s)
Adrenal Cortex Neoplasms , Adrenocortical Carcinoma , Metastasectomy , Humans , Retrospective Studies , Prognosis , Proportional Hazards Models , Survival Rate
6.
Ann Surg Oncol ; 30(11): 6788-6798, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37474696

ABSTRACT

BACKGROUND: Disparities have been previously described in the presentation, management, and outcomes of other thyroid cancer subtypes; however, it is unclear whether such disparities exist in anaplastic thyroid cancer (ATC). METHODS: We identified patients with ATC from the National Cancer Database (2004-2020). The primary outcomes were receipt of surgery, chemotherapy, and radiation. The secondary outcome was 1-year survival. Multivariable logistic and Cox proportional hazards regressions were used to assess the associations between sex, race/ethnicity, and the outcomes. RESULTS: Among 5359 patients included, 58% were female, and 80% were non-Hispanic white. Median tumor size was larger in males than females (6.5 vs. 6.0 cm; p < 0.001) and in patients with minority race/ethnicity than in white patients (6.5 vs. 6.0 cm; p < 0.001). After controlling for tumor size and metastatic disease, female patients were more likely to undergo surgical resection (odds ratio [OR]: 1.20; p = 0.016) but less likely to undergo chemotherapy (OR: 0.72; p < 0.001) and radiation (OR: 0.76; p < 0.001) compared with males. Additionally, patients from minority racial/ethnic backgrounds were less likely to undergo chemotherapy (OR: 0.69; p < 0.001) and radiation (OR: 0.71; p < 0.001) than white patients. Overall, unadjusted, 1-year survival was 23%, with differences in treatment receipt accounting for small but significant differences in survival between groups. CONCLUSIONS: There are disparities in the presentation and treatment of ATC by sex and race/ethnicity that likely reflect differences in access to care as well as patient and provider preferences. While survival is similarly poor across groups, the changing landscape of treatments for ATC warrants efforts to address the potential for exacerbation of disparities.


Subject(s)
Thyroid Carcinoma, Anaplastic , Thyroid Neoplasms , Male , Humans , Female , United States/epidemiology , Thyroid Carcinoma, Anaplastic/therapy , Ethnicity , Thyroid Neoplasms/pathology , Minority Groups , Healthcare Disparities
7.
J Genet Couns ; 32(1): 79-89, 2023 02.
Article in English | MEDLINE | ID: mdl-35941805

ABSTRACT

Identification of a hereditary prostate cancer in an affected individual can guide treatment and may also impact cancer screening and surveillance for patients and their relatives. This study aimed to determine the factors that are associated with the decision-making process of individuals with prostate cancer regarding whether to pursue genetic testing as well as how, why, and with whom genetic test results are shared. We surveyed 113 patients diagnosed with prostate cancer who received cancer genetic counseling through a United States tertiary medical center, inquiring about genetic testing motivations and family communication about results. Among those who pursued genetic testing, (1) learning about my family's possible cancer risk (98%), (2) learning information that may guide cancer treatment (93%), and (3) learning if I am at risk for future cancers (92%) were most frequently identified as slightly or very important factors in their decision. Participants shared their genetic test results in a higher proportion to male first-degree relatives than female first-degree relatives; however, no significant difference was found (p = 0.103). Our study may suggest sex differences related to family communication about genetic testing results. Such findings indicate a critical need for genetic counselors to clearly communicate the impact of genetic test results on both male and female relatives. Further research on motivation and family communication about genetic test results in diverse cohorts is needed.


Subject(s)
Motivation , Prostatic Neoplasms , Humans , Male , Family/psychology , Genetic Testing/methods , Communication , Genetic Counseling , Genetic Predisposition to Disease
8.
J Gen Intern Med ; 37(13): 3444-3452, 2022 10.
Article in English | MEDLINE | ID: mdl-35441300

ABSTRACT

BACKGROUND: Physician referrals are a critical step in directing patients to high-quality specialists. Despite efforts to encourage referrals to high-volume hospitals, many patients receive treatment at low-volume centers with worse outcomes. We aimed to determine the most important factors considered by referring providers when selecting specialists for their patients through a systematic review of medical and surgical literature. METHODS: PubMed and Embase were searched from January 2000 to July 2021 using terms related to referrals, specialty, surgery, primary care, and decision-making. We included survey and interview studies reporting the factors considered by healthcare providers as they refer patients to specialists in the USA. Studies were screened by two independent reviewers. Quality was assessed using the CASP Checklist. A qualitative thematic analysis was performed to synthesize common decision factors across studies. RESULTS: We screened 1,972 abstracts and identified 7 studies for inclusion, reporting on 1,575 providers. Thematic analysis showed that referring providers consider factors related to the specialist's clinical expertise (skill, training, outcomes, and assessments), interactions between the patient and specialist (prior experience, rapport, location, scheduling, preference, and insurance), and interactions between the referring physician and specialist (personal relationships, communication, reputation, reciprocity, and practice or system affiliation). Notably, studies did not describe how providers assess clinical or technical skills. CONCLUSIONS: Referring providers rely on subjective factors and assessments to evaluate quality when selecting a specialist. There may be a role for guidelines and objective measures of quality to inform the choice of specialist by referring providers.


Subject(s)
Referral and Consultation , Specialization , Communication , Delivery of Health Care , Health Personnel , Humans
9.
Genet Med ; 22(6): 1079-1087, 2020 06.
Article in English | MEDLINE | ID: mdl-32037395

ABSTRACT

PURPOSE: Current sequencing strategies can genetically solve 55-60% of inherited retinal degeneration (IRD) cases, despite recent progress in sequencing. This can partially be attributed to elusive pathogenic variants (PVs) in known IRD genes, including copy-number variations (CNVs), which have been shown as major contributors to unsolved IRD cases. METHODS: Five hundred IRD patients were analyzed with targeted next-generation sequencing (NGS). The NGS data were used to detect CNVs with ExomeDepth and gCNV and the results were compared with CNV detection with a single-nucleotide polymorphism (SNP) array. Likely causal CNV predictions were validated by quantitative polymerase chain reaction (qPCR). RESULTS: Likely disease-causing single-nucleotide variants (SNVs) and small indels were found in 55.6% of subjects. PVs in USH2A (11.6%), RPGR (4%), and EYS (4%) were the most common. Likely causal CNVs were found in an additional 8.8% of patients. Of the three CNV detection methods, gCNV showed the highest accuracy. Approximately 30% of unsolved subjects had a single likely PV in a recessive IRD gene. CONCLUSION: CNV detection using NGS-based algorithms is a reliable method that greatly increases the genetic diagnostic rate of IRDs. Experimentally validating CNVs helps estimate the rate at which IRDs might be solved by a CNV plus a more elusive variant.


Subject(s)
Retinal Degeneration , DNA Copy Number Variations/genetics , Eye Proteins/genetics , Genes, Recessive , High-Throughput Nucleotide Sequencing , Humans , Retinal Degeneration/diagnosis , Retinal Degeneration/genetics , Virulence
10.
Stroke ; 49(3): 727-729, 2018 03.
Article in English | MEDLINE | ID: mdl-29371436

ABSTRACT

BACKGROUND AND PURPOSE: Most cryptogenic strokes are thought to have an embolic source. We sought to determine whether cryptogenic strokes are associated with visceral infarcts, which are usually embolic. METHODS: Among patients prospectively enrolled in CAESAR (Cornell Acute Stroke Academic Registry), we selected those with a contrast-enhanced abdominal computed tomographic scan within 1 year of admission. Our exposure variable was adjudicated stroke subtype per the Trial of ORG 10172 in Acute Stroke Treatment classification. Our outcome was renal or splenic infarction as assessed by a single radiologist blinded to stroke subtype. We used Fisher exact test and multiple logistic regression to compare the prevalence of visceral infarcts among cardioembolic strokes, strokes of undetermined etiology, and noncardioembolic strokes (large- or small-vessel strokes). RESULTS: Among 227 patients with ischemic stroke and a contrast-enhanced abdominal computed tomographic scan, 59 had a visceral infarct (35 renal and 27 splenic). The prevalence of visceral infarction was significantly different among cardioembolic strokes (34.2%; 95% confidence interval [CI], 23.7%-44.6%), strokes of undetermined etiology (23.9%; 95% CI, 15.0%-32.8%), and strokes from large-artery atherosclerosis or small-vessel occlusion (12.5%; 95% CI, 1.8%-23.2%; P=0.03). In multiple logistic regression models adjusted for demographics and vascular comorbidities, we found significant associations with visceral infarction for both cardioembolic stroke (odds ratio, 3.5; 95% CI, 1.2-9.9) and stroke of undetermined source (odds ratio, 3.3; 95% CI, 1.1-10.5) as compared with noncardioembolic stroke. CONCLUSIONS: The prevalence of visceral infarction differed significantly across ischemic stroke subtypes. Cardioembolic and cryptogenic strokes were associated with a higher prevalence of visceral infarcts than noncardioembolic strokes.


Subject(s)
Brain Ischemia/diagnostic imaging , Contrast Media/administration & dosage , Infarction/diagnostic imaging , Stroke/diagnostic imaging , Tomography, X-Ray Computed , Abdomen/blood supply , Abdomen/diagnostic imaging , Aged , Aged, 80 and over , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Prospective Studies
13.
J Stroke Cerebrovasc Dis ; 27(6): 1497-1501, 2018 Jun.
Article in English | MEDLINE | ID: mdl-29398537

ABSTRACT

BACKGROUND: The left atrial appendage (LAA) is the main source of thrombus in atrial fibrillation, and there is an association between non-chicken wing (NCW) LAA morphology and stroke. We hypothesized that the prevalence of NCW LAA morphology would be higher among patients with cardioembolic (CE) stroke and embolic stroke of undetermined source (ESUS) than among those with noncardioembolic stroke (NCS). METHODS: This multicenter retrospective pilot study included consecutive patients with ischemic stroke from 3 comprehensive stroke centers who previously underwent a qualifying chest computed tomography (CT) to assess LAA morphology. Patients underwent inpatient diagnostic evaluation for ischemic stroke, and stroke subtype was determined based on ESUS criteria. LAA morphology was determined using clinically performed contrast enhanced thin-slice chest CT by investigators blinded to stroke subtype. The primary predictor was NCW LAA morphology and the outcome was stroke subtype (CE, ESUS, NCS). RESULTS: We identified 172 patients with ischemic stroke who had a clinical chest CT performed. Mean age was 70.1 ± 14.3 years and 51.7% were male. Compared with patients with NCS, the prevalence of NCW LAA morphology was higher in patients with CE stroke (58.7% versus 46.3%, P = .1) and ESUS (58.8% versus 46.3%, P = .2), but this difference did not achieve statistical significance. CONCLUSION: The prevalence of NCW LAA morphology may be similar in patients with ESUS and CE, and may be higher than that in those with NCS. Larger studies are needed to confirm these associations.


Subject(s)
Atrial Appendage/diagnostic imaging , Brain Ischemia/diagnostic imaging , Stroke/diagnostic imaging , Aged , Brain Ischemia/epidemiology , Female , Humans , Male , Pilot Projects , Prevalence , Prospective Studies , Radiography, Thoracic , Retrospective Studies , Stroke/epidemiology , Tomography, X-Ray Computed
14.
J Stroke Cerebrovasc Dis ; 26(7): 1594-1601, 2017 Jul.
Article in English | MEDLINE | ID: mdl-28318958

ABSTRACT

BACKGROUND: Carotid atherosclerosis is responsible for ~20% of ischemic strokes, but it is unclear whether carotid disease is associated with the presence of downstream silent brain infarction (SBI). We performed a systematic review and meta-analysis to study the relationship between SBI and 2 separate manifestations of carotid atherosclerosis, carotid intima-media thickening (IMT) and luminal stenosis. METHODS: Ovid MEDLINE, Ovid Embase, and the Cochrane Library Database were searched with an additional search of references and citing articles of target studies. Articles were included if they reported an association between carotid IMT or stenosis and magnetic resonance imaging-defined SBI, excluding SBIs found after carotid intervention. RESULTS: We pooled 7 studies of carotid IMT reporting on 1469 subjects with SBI and 5102 subjects without SBI. Subjects with SBI had a larger mean IMT than subjects without SBI (pooled standardized mean difference, .37; 95% confidence interval [CI], .23-.51; P < .0001). We pooled 11 studies of carotid stenosis reporting on 12,347 subjects (2110 subjects with carotid stenosis and 10,237 subjects without carotid stenosis). We found a higher prevalence of SBI among subjects with carotid stenosis (30.4% versus 17.4%). Our pooled random-effects analysis showed a significant positive relationship between carotid stenosis and SBI (odds ratio, 2.78; 95% CI, 2.19-3.52; P < .0001). CONCLUSIONS: Two forms of atherosclerotic disease, carotid IMT and stenosis, are both significantly associated with SBI. This review highlights a lack of consistent definitions for carotid disease measures and little evidence evaluating SBI prevalence downstream from carotid stenosis.


Subject(s)
Brain Infarction/etiology , Carotid Stenosis/complications , Asymptomatic Diseases , Brain Infarction/diagnostic imaging , Carotid Intima-Media Thickness , Carotid Stenosis/diagnostic imaging , Humans , Magnetic Resonance Imaging , Odds Ratio , Prognosis , Risk Assessment , Risk Factors , Severity of Illness Index
15.
Stroke ; 47(3): 719-25, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26888534

ABSTRACT

BACKGROUND AND PURPOSE: Silent brain infarction (SBI) on magnetic resonance imaging has been proposed as a subclinical risk marker for future symptomatic stroke. We performed a systematic review and meta-analysis to summarize the association between magnetic resonance imaging-defined SBI and future stroke risk. METHODS: We searched the medical literature to identify cohort studies involving adults with SBI detected by magnetic resonance imaging who were subsequently followed up for incident clinically defined stroke. Study data and quality assessment were recorded in duplicate with disagreements in data extraction resolved by a third reader. Strength association between magnetic resonance imaging-detected SBI and future symptomatic stroke was measured by an hazard ratio. RESULTS: The meta-analysis included 13 studies (14 764 subjects) with a mean follow-up ranging from 25.7 to 174 months. SBI predicted the occurrence of stroke with a random effects crude relative risk of 2.94 (95% confidence interval, 2.24-3.86, P<0.001; Q=39.65, P<0.001). In the 8 studies of 10 427 subjects providing hazard ratio adjusted for cardiovascular risk factors, SBI was an independent predictor of incident stroke (hazard ratio, 2.08 [95% confidence interval, 1.69-2.56; P<0.001]; Q=8.99; P=0.25). In a subgroup analysis pooling 9483 stroke-free individuals from large population-based studies, SBI was present in ≈18% of participants and remained a strong predictor of future stroke (hazard ratio, 2.06 [95% confidence interval, 1.64-2.59]; P<0.01). CONCLUSIONS: SBI is present in ≈1 in 5 stroke-free older adults and is associated with a 2-fold increased risk of future stroke. Future studies of in-depth stroke risk evaluations and intensive prevention measures are warranted in patients with clinically unrecognized radiologically evident brain infarctions.


Subject(s)
Brain Infarction/diagnosis , Brain Infarction/epidemiology , Stroke/diagnosis , Stroke/epidemiology , Forecasting , Humans , Observational Studies as Topic/methods , Risk Factors
16.
J Neurochem ; 137(2): 164-76, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26826701

ABSTRACT

Neuronal activity sculpts brain development by inducing the transcription of genes such as brain-derived neurotrophic factor (Bdnf) that modulate the function of synapses. Sensory experience is transduced into changes in gene transcription via the activation of calcium signaling pathways downstream of both L-type voltage-gated calcium channels (L-VGCCs) and NMDA-type glutamate receptors (NMDARs). These signaling pathways converge on the regulation of transcription factors including calcium-response factor (CaRF). Although CaRF is dispensable for the transcriptional induction of Bdnf following the activation of L-VGCCs, here we show that the loss of CaRF leads to enhanced NMDAR-dependent transcription of Bdnf as well as Arc. We identify the NMDAR subunit-encoding gene Grin3a as a regulatory target of CaRF, and we show that expression of both Carf and Grin3a is depressed by the elevation of intracellular calcium, linking the function of this transcriptional regulatory pathway to neuronal activity. We find that light-dependent activation of Bdnf and Arc transcription is enhanced in the visual cortex of young CaRF knockout mice, suggesting a role for CaRF-dependent dampening of NMDAR-dependent transcription in the developing brain. Finally, we demonstrate that enhanced Bdnf expression in CaRF-lacking neurons increases inhibitory synapse formation. Taken together, these data reveal a novel role for CaRF as an upstream regulator of NMDAR-dependent gene transcription and synapse formation in the developing brain. NMDARs promote brain development by inducing the transcription of genes, including brain-derived neurotrophic factor (BDNF). We show that the transcription factor calcium-response factor (CaRF) limits NMDAR-dependent BDNF induction by regulating expression of the NMDAR subunit GluN3A. Loss of CaRF leads to enhanced BDNF-dependent GABAergic synapse formation indicating the importance of this process for brain development. Our observation that both CaRF and GluN3A are down-regulated by intracellular calcium suggests that this may be a mechanism for experience-dependent modulation of synapse formation.


Subject(s)
Brain-Derived Neurotrophic Factor/metabolism , Brain/growth & development , Cerebral Cortex/cytology , Gene Expression Regulation, Developmental/physiology , Membrane Glycoproteins/metabolism , Transcription Factors/metabolism , Animals , Animals, Newborn , Brain-Derived Neurotrophic Factor/genetics , Calcium Channel Blockers/pharmacology , Cells, Cultured , Disease Models, Animal , Embryo, Mammalian , Excitatory Amino Acid Antagonists/pharmacology , Female , Gene Expression Regulation, Developmental/drug effects , Male , Membrane Glycoproteins/genetics , Mice , Mice, Inbred C57BL , Mice, Transgenic , Neurons/drug effects , Neurons/physiology , Tetrodotoxin/pharmacology , Transcription Factors/genetics , Valine/analogs & derivatives , Valine/pharmacology , Visual Cortex/metabolism
17.
Am J Surg ; 227: 189-197, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37852843

ABSTRACT

BACKGROUND: In 2016, Section 1557 mandated use of qualified language interpreter services. We examined the effect of Section 1557 on surgical outcomes. METHODS: Utilizing the Healthcare Cost and Utilization Project State Inpatient Database (2013-2020), we performed a difference-in-differences analysis of adult surgical patients (Maryland, New Jersey). The exposure was implementation of Section 1557 (pre-period: 2013-2015; post-period: 2017-2020). The treatment group was non-English primary language speakers (n-EPL). The comparison group was English primary language speakers (EPL). Outcomes included length-of-stay, postoperative complications, mortality, discharge disposition, and readmissions. RESULTS: Among 2,298,584 patients, 198,385 (8.6%) were n-EPL. After implementation of Section 1557, n-EPL saw no difference in readmission rates but did experience significantly higher rates of mortality (+0.43%, p â€‹= â€‹0.049) and non-routine discharges (+1.81%, p â€‹= â€‹0.031) in Maryland, and higher rates of post-operative complications (+0.31%, p â€‹= â€‹0.001) in both states, compared to pre-Section 1557. CONCLUSIONS: Contrary to our hypothesis, Section 1557 did not improve surgical outcomes for n-EPL.


Subject(s)
Language , Patient Protection and Affordable Care Act , Adult , United States , Humans , Length of Stay , Maryland , Treatment Outcome , Retrospective Studies , Patient Readmission
18.
Am J Surg ; 229: 151-155, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38160065

ABSTRACT

BACKGROUND: Complex surgical care is often centralized to one high volume (hub) hospital within a system. The benefit of this centralization in common operations is unknown. METHODS: Using the Healthcare Cost and Utilization Project's State Inpatient Databases, adult general surgical patients within hospital systems in 13 states (2016-2018) were identified. Risk-adjusted logistic regression estimated the odds of death or serious morbidity (DSM) and prolonged length of stay (LOS) at hubs relative to other system hospitals (spokes). RESULTS: We identified 122,895 patients across 43 hub-and-spoke systems. Hubs completed 83.2 â€‹% of complex and 59.6 â€‹% of common operations. For complex operations, odds of DSM were significantly lower in hubs (OR: 0.80; 95 â€‹% CI [0.65, 0.98]). For common operations, odds of DSM were similar between hubs and spokes, while odds of prolonged LOS were greater at hubs (OR 1.19; 95 â€‹% CI [1.16,1.24]). CONCLUSIONS: While hub hospitals had lower odds of DSM for complex operation, they had higher odds of prolonged length of stay for common operations. This finding shows an opportunity for improved system efficiency.


Subject(s)
Delivery of Health Care , Health Care Costs , Adult , Humans , Cohort Studies , Hospitals , Inpatients
19.
Am J Surg ; 234: 19-25, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38365554

ABSTRACT

BACKGROUND: This study assessed for disparities in the presentation and management of medullary thyroid cancer (MTC). METHODS: Patients with MTC (2010-2020) were identified from the National Cancer Database. Differences in disease presentation and likelihood of guideline-concordant surgical management (total thyroidectomy and resection of ≥1 lymph node) were assessed by sex and race/ethnicity. RESULTS: Of 6154 patients, 68.2% underwent guideline-concordant surgery. Tumors >4 â€‹cm were more likely in men (vs. women: OR 2.47, p â€‹< â€‹0.001) and Hispanic patients (vs. White patients: OR 1.52, p â€‹= â€‹0.001). Non-White patients were more likely to have distant metastases (Black: OR 1.63, p â€‹= â€‹0.002; Hispanic: OR 1.44, p â€‹= â€‹0.038) and experienced longer time to surgery (Black: HR 0.66, p â€‹< â€‹0.001; Hispanic: HR 0.71, p â€‹< â€‹0.001). Black patients were less likely to undergo guideline-concordant surgery (OR 0.70, p â€‹= â€‹0.022). CONCLUSIONS: Male and non-White patients with MTC more frequently present with advanced disease, and Black patients are less likely to undergo guideline-concordant surgery.


Subject(s)
Carcinoma, Neuroendocrine , Healthcare Disparities , Thyroid Neoplasms , Thyroidectomy , Humans , Thyroid Neoplasms/ethnology , Thyroid Neoplasms/surgery , Thyroid Neoplasms/therapy , Thyroid Neoplasms/pathology , Male , Female , Middle Aged , Healthcare Disparities/ethnology , Healthcare Disparities/statistics & numerical data , Carcinoma, Neuroendocrine/ethnology , Carcinoma, Neuroendocrine/surgery , Carcinoma, Neuroendocrine/pathology , Carcinoma, Neuroendocrine/therapy , Thyroidectomy/statistics & numerical data , Sex Factors , Adult , Aged , United States/epidemiology , Hispanic or Latino/statistics & numerical data , Ethnicity/statistics & numerical data , Retrospective Studies
20.
JAMA Surg ; 159(1): 43-50, 2024 Jan 01.
Article in English | MEDLINE | ID: mdl-37851422

ABSTRACT

Importance: Many early-career surgeons struggle to develop their clinical practices, leading to high rates of burnout and attrition. Furthermore, women in surgery receive fewer, less complex, and less remunerative referrals compared with men. An enhanced understanding of the social and structural barriers to optimal growth and equity in clinical practice development is fundamental to guiding interventions to support academic surgeons. Objective: To identify the barriers and facilitators to clinical practice development with attention to differences related to surgeon gender. Design, Setting, and Participants: A multi-institutional qualitative descriptive study was performed using semistructured interviews analyzed with a grounded theory approach. Interviews were conducted at 5 academic medical centers in the US between July 12, 2022, and January 31, 2023. Surgeons with at least 1 year of independent practice experience were selected using purposeful sampling to obtain a representative sample by gender, specialty, academic rank, and years of experience. Main Outcomes and Measures: Surgeon perspectives on external barriers and facilitators of clinical practice development and strategies to support practice development for new academic surgeons. Results: A total of 45 surgeons were interviewed (23 women [51%], 18 with ≤5 years of experience [40%], and 20 with ≥10 years of experience [44%]). Surgeons reported barriers and facilitators related to their colleagues, department, institution, and environment. Dominant themes for both genders were related to competition, case distribution among partners, resource allocation, and geographic market saturation. Women surgeons reported additional challenges related to gender-based discrimination (exclusion, questioning of expertise, role misidentification, salary disparities, and unequal resource allocation) and additional demands (related to appearance, self-advocacy, and nonoperative patient care). Gender concordance with patients and referring physicians was a facilitator of practice development for women. Surgeons suggested several strategies for their colleagues, department, and institution to improve practice development by amplifying facilitators and promoting objectivity and transparency in resource allocation and referrals. Conclusions and Relevance: The findings of this qualitative study suggest that a surgeon's external context has a substantial influence on their practice development. Academic institutions and departments of surgery may consider the influence of their structures and policies on early career surgeons to accelerate practice development and workplace equity.


Subject(s)
Burnout, Professional , Surgeons , Humans , Female , Male , Qualitative Research , Academic Medical Centers , Delivery of Health Care
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