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Wang, Yichen

0009-0003-9211-0919

Mayo Clinic

University of Pennsylvania

Citations 4

The Obstructive Sleep Apnea Care Ecosystem in the United States: Clinical Pathways and the Evolving Role of Otolaryngology
Tu, Xinhang , Schwartz, Alan R. , Wang, Yichen , Huang, Yuting , Li, Yike

Life | October 7, 2026 | Volume: 16 | Issue: 10 | Pages: 1669

10.3390/life16101669 Get It

Obstructive sleep apnea (OSA) is a common, heterogeneous disorder managed through a multidisciplinary pathway that connects recognition, physiologic testing, treatment selection, specialty referral, insurance coverage, and longitudinal reassessment. This narrative review provides a clinically oriented, system-level overview of the adult OSA care ecosystem in the United States for an international clinical audience, with particular emphasis on the evolving role of otolaryngology. We describe the organization and complementary functions of sleep physicians, otolaryngologists, dentists, and allied health professionals. We also outline the roles of polysomnography and home sleep apnea testing, along with major therapeutic pathways including positive airway pressure, oral appliance therapy, weight management, upper-airway surgery, and neurostimulation. Otolaryngology provides an important interface between physiologic diagnosis and airway-specific treatment by integrating anatomic evaluation, sleep-state airway phenotyping, intervention selection, and post-treatment reassessment. Recent advances in neurostimulation, pharmacologic weight management, wearable and home-based monitoring, airflow analysis, and artificial intelligence are expanding opportunities for accessible and phenotype-informed care. Important challenges include underdiagnosis, treatment attrition, fragmented transitions, variable coverage, and reliance on the apnea–hypopnea index. Although health-care structures differ internationally, multidisciplinary coordination, individualized treatment selection, and longitudinal reassessment provide broadly applicable principles for developing patient-centered OSA programs.
S871 Utilization of Gastrointestinal Procedures Before and After Palliative Care Initiation: A TriNetX Database Analysis
Ezeani, Chukwunonso , Kollu, Lekhya, Okafor, Philip N. , Wang, Yichen , Huang, Yuting

American Journal of Gastroenterology | October 24, 2024 | Volume: 119 | Issue: 10S | Pages: S603-S604

10.14309/01.ajg.0001032852.18452.1f Get It

Impact of Non-Alcoholic Fatty Liver Disease on Sepsis Inpatient Outcomes: A Nationwide Sample Analysis(2000-2019)
Lyu, Xiuhong , Liu, Bolun , Miskovsky, John, Gaitanis, Melissa , Promrat, Kittichai , Wu, Wen‐Chih , Liu, Bolun , Li, Yiting , Wang, Yichen

No container title available | July 30, 2024 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-4673966/v1 Get It

Abstract Background It was reported that patients with Non-Alcoholic Fatty Liver Disease (NAFLD) were at increased risk of contracting severe infections requiring hospitalization which could end up with sepsis. However, data regarding the impact of comorbid NAFLD on the in-hospital outcomes of sepsis admission is scarce. Methods This nationwide retrospective observational study included 21,057,911 adult patients who were admitted into hospitals in the United States between 2000 and 2019 with a primary discharge diagnosis of sepsis. These patients were categorized according to the presence or absence of comorbid NAFLD. The twenty-year trend of nationwide NAFLD prevalence among sepsis inpatients was elucidated. Multivariate logistic regression analysis was used to analyze NAFLD's impact on in-hospital outcomes of sepsis. Results In the twenty-year study period, the prevalence of NALFD among sepsis inpatients trended up from 1.2% in 2000 to 4.2 % in 2019. While sepsis mortality had trended down, comorbid NAFLD in sepsis patients was consistently associated with a higher adjusted in-hospital all-cause mortality rate (adjusted odds ratio (OR), 1.45; 95% confidence interval (CI), 1.42-1.48), higher odds of developing septic shock, and multi-organ dysfunctions (including cardiovascular-, renal-, and hepatic dysfunction). They were more likely to be discharged to another acute hospital. The length of stay of sepsis patients with NAFLD who died in the hospital was significantly shorter than those without NAFLD. Conclusions Comorbid NAFLD is associated with higher in-hospital all-cause mortality and worse clinical outcomes in sepsis inpatients. Addressing this rising epidemic will be of paramount importance to improve sepsis in-hospital outcomes.
Incidence and risk factors of graft-versus-host disease after liver transplantation: A national study 2010–2020
Huang, Yuting , Chase, R. Christopher , Yang, Liu , Chase, R Christopher , Huang, Yuting , Wang, Yichen

Hepatology Communications | September 27, 2023 | Volume: 7 | Issue: 10 | Pages: No page available

10.1097/hc9.0000000000000271 Get It

Background: Graft-versus-host disease (GVHD) is a common complication of hematopoietic cell transplantation, and its incidence is low in liver transplantation (LT). Estimating the incidence of GVHD after LT is challenging due to the paucity of available data from the United Network for Organ Sharing. This is the first national analysis of the incidence and risk factors of GVHD after LT. Methods: This retrospective cohort study used the National Readmission Database to calculate the incidence rate of GVHD within 1 year of LT using survival analysis. The predictors of GVHD were identified using univariate and multivariate Cox regression analyses. Results: From 2010 to 2020, of 88,433 LTs, 383 cases of GVHD occurred within 1 year after LT, resulting in an incidence rate of 1.0% (95% CI: 0.8%–1.3%). We observed no statistically significant change in the incidence of GVHD after LT from 2010 to 2020 (beta-coefficient, −0.07%; 95% CI: −0.17% to 0.04%, p = 0.188). Interestingly, alcohol-associated liver disease was associated with a lower risk of GVHD (adjusted HR, 0.57; 95% CI: 0.36–0.91, p = 0.018), whereas a higher risk was found to be related to a secondary diagnosis of COVID-19 on index admission. Conclusion: Our study found that the incidence rate of GVHD within 1 year of LT in the United States was 1.0% and remained stable from 2010 to 2020. The predictors associated with GVHD include alcohol-associated liver disease and COVID-19. Our study provides valuable insights into the incidence, risk factors, and outcomes of GVHD after LT.