Faculty Bibliography

OBJECTIVE: This study aimed to identify the impact of postpartum hemorrhage (PPH) after vaginal delivery on immediate breastfeeding success. STUDY DESIGN/METHODS: This is a retrospective cohort study examining the impact of PPH on breastfeeding for nulliparous patients after term, singleton, vaginal deliveries at a large academic institution from 2017 to 2018. Indicators of successful breastfeeding in the immediate postpartum period were measured by the presence of breastfeeding, the need for formula supplementation, the average number of breastfeeding sessions per day, the average amount of time spent at each breastfeeding session, the average number of newborn stools and wet diapers produced daily, and the neonatal percentage in weight loss over the first 2 to 3 days of life. RESULTS: = 0.008). CONCLUSION/CONCLUSIONS: Women who experience PPH after vaginal delivery have a decreased number of breastfeeding sessions despite spending more time trying to breastfeed, and an increased percentage in neonatal weight loss over the first 2 to 3 days of life. Further work is needed to elicit the mechanism behind this association; however, it is possible that PPH results in decreased secretion of endogenous oxytocin from the hypothalamic-pituitary axis as a result of hypovolemia. These women may therefore require additional breastfeeding support for successful breastfeeding initiation in the immediate postpartum period. KEY POINTS/CONCLUSIONS:· Women who experience PPH after vaginal delivery have decreased breastfeeding success.. · Further work is needed to elicit the mechanism behind this association.. · These women may require additional support for successful breastfeeding initiation postpartum..

OBJECTIVES/OBJECTIVE:Fine needle aspiration (FNA) plays a crucial role in their initial assessment of salivary gland neoplasms. In the Milan System for Reporting Salivary Gland Cytopathology (MSRSGC), the category of Salivary Gland Neoplasm of Uncertain Malignant Potential (SUMP) categorizes lesions with ambiguous features. This study aims to investigate the risk of neoplasm (RON) and risk of malignancy (ROM) within different subgroups of SUMP lesions using data from three large academic institutions. METHODS:We analyzed salivary gland (FNA) cases from three academic institutions post-MSRSGC implementation. Salivary gland FNA cases categorized as Milan IVB (SUMP) with subsequent surgical pathology follow-up were analyzed. Cases were divided into basaloid, oncocytic, and clear cell SUMP subtypes, with RON and ROM assessed and compared. RESULTS:Out of 1377 MSRSGC cases, 231 were SUMP (16.8%), with 101 subjected to surgical pathology follow-up. The overall ROM for SUMP was 20.8%, with variations of 10% to 29.5% observed amongst institutions, but no significant difference was observed among three institutions (p = 0.15). Basaloid and oncocytic SUMP displayed 17.1% and 20.5% ROM, respectively, without significant disparity. However, all clear cell SUMP cases were malignant on surgical resection. CONCLUSIONS:This study highlights the variability in ROM for SUMP lesions and the significantly higher ROM in SUMP cases with clear cell features. These findings emphasize the importance of accurately subcategorizing SUMP lesions, particularly those with clear cell features, for appropriate clinical management.

Gallstone ileus, a rare cause of mechanical bowel obstruction, occurs due to the formation of a cholecystenteric fistula allowing gallstones to migrate into the gastrointestinal tract. The condition occurs mostly in elderly patients, particularly women, and carries a significant mortality risk due to delayed diagnosis. This case report discusses a 77-year-old female patient with a history of chronic medical conditions, who self-presented with periumbilical pain, nausea, and reduced bowel movements. Initial imaging revealed pneumobilia and small bowel obstruction, leading to a diagnosis of partial obstruction attributed to adhesions. Despite surgical intervention and temporary symptom relief, the patient's condition deteriorated due to a subsequent colonic obstruction. The case was complicated by delayed recognition of gallstone ileus, as imaging initially misinterpreted the obstructive mass as a "stool ball" rather than a gallstone. Following diagnostic laparoscopy and subsequent exploratory surgeries, the patient was found to have a gallstone impacted in the rectum, leading to colonic ischemia and perforation. This resulted in progressive renal failure, respiratory failure, and ultimately, the patient's death in hospice care. This case underscores the diagnostic challenges of gallstone ileus and highlights two key delays: misattribution of obstructive symptoms to adhesions and failure to recognize colonic obstruction due to gallstone ileus. Early use of contrast-enhanced imaging and a high index of suspicion are crucial for timely diagnosis. This case emphasizes the importance of thorough inspection of the small bowel and ileocecal region during laparoscopy and the need for careful evaluation of imaging findings to improve patient outcomes in gallstone ileus cases.

OBJECTIVE:To evaluate if in pregnancies conceived with the transfer of single genetically tested embryos, maternal race and ethnicity relate to pregnancy outcome. DESIGN/METHODS:Retrospective cohort. SETTING/METHODS:Data available in the Clinical Outcome Reporting System of the Society for Assisted Reproductive Technology (SART-CORS) for years 2016-2018. PATIENT(S)/METHODS:Autologous frozen-thaw embryo transfer (FET) cycles with transfer of single genetically tested embryo in SART-CORS for years 2016-2018; cycles associated with diagnoses of recurrent pregnancy loss, gestational carrier, donor egg and donor embryo were excluded. INTERVENTION(S)/METHODS:Information on race and ethnicity linked with in vitro fertilization and FET cycles available in SART-CORS. MAIN OUTCOME MEASURE(S)/METHODS:Multivariable analyses using generalized estimating equation examined the relationship between categories of race and ethnicity with the following outcomes: Pregnancy positive β hCG (human chorionic gonadotropin), clinical pregnancy, pregnancy loss (early [at gestation <13 weeks] and late [loss between ≥13 and <20 weeks]), preterm (<37 weeks), term (≥37 weeks) and live birth. Covariates adjusted for included age, body mass index, anti-Mullerian hormone, infertility diagnosis and smoking history. RESULT(S)/RESULTS:Seventy-nine thousand four hundred and sixteen FET cycles met the eligibility criteria. Information on race and ethnicity was specified for 50,820 (64.0%) and was not known in 28,723 (36%) of the cycles. The population was predominantly non-Hispanic White (44%); non-Hispanic Black comprised 2.7%, Asian 12.3%, Hispanic 3.4%, and American Indian, Pacific Islander, Hawaiian, and Alaskan comprised 0.2% of the population. Nearly 1.0 % self-identified with more than one race. On multivariable analyses, pregnancies in non-Hispanic Black and in Hispanic women (compared with non-Hispanic Whites') were significantly more likely to result in in preterm birth. Compared with non-Hispanic White women, the likelihood of live birth was significantly lower in non-Hispanic Blacks, Asian, Hispanic, American Indian, Pacific Islander, Hawaiian, and Alaskan women. The likelihood for delivery by Cesarean was also disproportionately higher in the non Hispanic Black and, Hispanic women and in those identifying with more than one race (0.023) compared with non-Hispanic White women. CONCLUSION(S)/CONCLUSIONS:Racial and ethnic differentials are apparent in the outcomes of FET conceived pregnancies resulting from the transfer of single genetically tested embryos.

Histologic transformation (HT) of indolent non-Hodgkin lymphoma (iNHL) to diffuse large B-cell lymphoma (DLBCL) carries a poor prognosis. Using the Surveillance, Epidemiology, and End Results-17 database, we conducted a population-based study of adult patients with transformed follicular lymphoma (t-FL), marginal zone lymphoma (t-MZL), lymphoplasmacytic lymphoma/Waldenström macroglobulinemia (t-LPL/WM), and de novo DLBCL. Primary outcome was relative survival (RS), and secondary outcomes included overall survival (OS) and lymphoma-specific survival (LSS). Outcomes were modeled using flexible parametric survival models, while multivariable modeling was used to compare RS, OS, and LSS. The incidence of HT was highest in splenic MZL (SMZL, 6.78%) and lowest in extranodal MZL (EMZL, 1.62%). Median follow-up times were similar for patients with de novo DLBCL and transformed indolent lymphomas. The 5-year RS and OS were longer in de novo DLBCL compared to all other transformed iNHL subtypes (68 versus 59%, respectively). For t-FL, early transformation (within 2 years of diagnosis, Hazard ratio [HR] = 1.34) and prior treatment (HR = 1.89) were associated with inferior survival. This association was not observed in other transformed lymphoma subtypes. This is the first comparative study to show that the outcomes of t-LPL/WM were inferior compared to de novo DLBCL and highlights the need to incorporate early experimental therapies in patients with t-FL with early transformation and receipt of prior chemotherapy.

BACKGROUND AND OBJECTIVES/OBJECTIVE:Hearing aids may reduce the risk of dementia among individuals with hearing loss. However, no evidence is available from randomized controlled trials (RCTs) on the effectiveness of hearing aids use in reducing incident dementia. Using target trial emulation, we leveraged an existing longitudinal cohort study to estimate the association between hearing aids initiation and risk of dementia. RESEARCH DESIGN AND METHODS/METHODS:The Health and Retirement Study was used to emulate target trials among non-institutionalized participants aged ≥50 years with self-reported hearing loss, without dementia at baseline, and without use of hearing aids in the previous 2 years. Intention-to-treat analysis was conducted to estimate the risk of dementia associated with hearing aids initiation vs controls who did not initiate hearing aids. Pooled logistic regression models with inverse-probability of treatment and censoring weights were applied to estimate risk ratios, and 95% confidence intervals were calculated using 1000 sets of bootstrapping. RESULTS:Among 2314 participants (328 in the intervention group and 1986 in the control group; average age: 72.3 ± 9.7 years, 49% women, and 81% White), after 8 years of follow-up, risk of dementia was significantly lower among individuals who initiated hearing aids (risk difference (RD): -0.05, 95% confidence interval (CI): -0.08, -0.01). A lower risk was observed particularly among adults aged 50-74 years, men, and individuals with cardiovascular disease. DISCUSSION AND IMPLICATIONS/CONCLUSIONS:Hearing aids use was associated with a significant reduction of incident dementia. Future interventional studies are needed to further assess the effectiveness of hearing aids in preventing dementia.