Tiannan Zhan

ORCID: 0000-0003-4691-5284
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About
Contact & Profiles
Research Areas
  • Healthcare professionals’ stress and burnout
  • Thyroid Cancer Diagnosis and Treatment
  • Diversity and Career in Medicine
  • Cancer Genomics and Diagnostics
  • Innovations in Medical Education
  • Pancreatic and Hepatic Oncology Research
  • Liver Disease Diagnosis and Treatment
  • Hepatitis C virus research
  • COVID-19 and healthcare impacts
  • Maternal and Perinatal Health Interventions
  • Esophageal Cancer Research and Treatment
  • Hepatitis B Virus Studies
  • Medical Education and Admissions
  • Eosinophilic Esophagitis
  • Global Cancer Incidence and Screening
  • Gastric Cancer Management and Outcomes
  • Renal cell carcinoma treatment
  • Diabetes Treatment and Management
  • Patient-Provider Communication in Healthcare
  • Patient Satisfaction in Healthcare
  • Autopsy Techniques and Outcomes
  • Emergency and Acute Care Studies
  • Telemedicine and Telehealth Implementation
  • Maternal and fetal healthcare
  • Lung Cancer Diagnosis and Treatment

Northwestern University
2020-2024

Massachusetts General Hospital
2017-2022

Center for Assessment
2017-2021

Northwestern Medicine
2021

Lurie Children's Hospital
2020

Loyola University Medical Center
2020

University Medical Centre Mannheim
2019

Heidelberg University
2014-2019

University Hospital Heidelberg
2019

Brigham and Women's Hospital
2016-2017

<h3>Importance</h3> The prevalence of workplace mistreatment and its association with the well-being emergency medicine (EM) residents is unclear. More information about sources might encourage residency leadership to develop implement more effective strategies improve professional not only during but also throughout physician's career. <h3>Objective</h3> To examine prevalence, types, perceived training among EM in US between suicidal ideation. <h3>Design, Setting, Participants</h3> In this...

10.1001/jamanetworkopen.2021.21706 article EN cc-by-nc-nd JAMA Network Open 2021-08-19

The Food and Drug Administration has approved several pharmacotherapies for the treatment of obesity. This study assesses cost-effectiveness six lifestyle intervention people with mild obesity (body mass indices [BMIs] 30 to 35).

10.1002/osp4.390 article EN cc-by Obesity Science & Practice 2019-11-22

The influence of workplace mistreatment on the well-being and career satisfaction emergency medicine residents is unknown. This study examined relationships between burnout, choice regret, in a national sample residents.This was secondary analysis survey prevalence among residents. Residents who reported emotional exhaustion or depersonalization at least once per week were considered to have burnout. dissatisfaction with their decision become an physician regret. Respondents also type...

10.1016/j.annemergmed.2022.10.015 article EN cc-by-nc-nd Annals of Emergency Medicine 2023-02-07

Objective: To assess relative clinical and economic performance of the revised American Thyroid Association (ATA) thyroid cancer guidelines compared to current standard care. Background: Diagnosis in United States has tripled whereas mortality only marginally increased. Most patients present with small papillary carcinomas have historically received at least a total thyroidectomy as treatment. In 2015, ATA released recommending an option for active surveillance (AS) carcinoma lobectomy...

10.1097/sla.0000000000003074 article EN Annals of Surgery 2018-10-18

Abstract Objectives The COVID‐19 pandemic was disruptive for trainees and may have affected career decisions some learners. This study examined the impact of on emergency medicine (EM) resident perceptions their mental health, personal safety, choice regret. Methods a cross‐sectional survey administered following 2021 American Board Emergency Medicine In‐Training Examination (ITE). Survey measures included suicidal ideation (SI), COVID concerns in terms infection prevention control (IPC)...

10.1002/aet2.10955 article EN AEM Education and Training 2024-03-20

BRAFV600E is the most common mutation in papillary thyroid carcinoma (PTC) and can be associated with aggressive disease. Previously, a highly sensitive blood RNA-based assay was reported. The objective of this study to assess correlation circulating tumor RNA levels surgical medical treatment.Circulating were assessed (i) murine model undifferentiated (anaplastic) known undergoing BRAFV600E-inhibitor (BRAFi) treatment, (ii) 111 patients enrolled prior thyroidectomy (n = 86) or treatment...

10.1089/thy.2017.0322 article EN Thyroid 2018-01-30

Abstract Background Expectant mothers who are beneficiaries of TRICARE (universal insurance to United States Armed Services members and their dependents) can choose receive care within direct (salary‐based) or purchased (fee‐for‐service) systems. We sought compare frequency intrapartum obstetric procedures outcomes such as severe acute maternal morbidity ( SAMM ) common postpartum complications between systems . Methods (2006‐2010) claims data were used identify deliveries. Patient...

10.1111/birt.12298 article EN Birth 2017-08-22

Abstract Background The effectiveness and cost-effectiveness of using neoadjuvant FOLFIRINOX (nFOLFIRINOX) for patients with borderline resectable or locally advanced pancreatic ductal adenocarcinoma (BR/LA PDAC) are unknown. Our objective was to determine whether nFOLFIRINOX is more effective cost-effective BR/LA PDAC compared upfront resection surgery adjuvant gemcitabine plus capecitabine (GEM/CAPE) monotherapy (GEM). Materials Methods We performed a decision-analysis assess the value...

10.1634/theoncologist.2018-0114 article EN The Oncologist 2018-12-17

To characterize nonrespondents to a national survey about trainee well-being, examine response patterns questions of sensitive nature, and assess how nonresponse biases prevalence estimates mistreatment well-being.Surgical trainees are at risk for burnout mistreatment, which discernible only by self-report. Therefore, may be biased nonresponse.A was administered with the 2018 2019 American Board Surgery In-Training Examinations assessing demographics, dissatisfaction education career,...

10.1097/as9.0000000000000228 article EN cc-by-nc-nd Annals of Surgery Open 2022-12-01

Thyroid cancer affects over ½ million people in the U.S. and incidence of thyroid has increased worldwide at a rate higher than any other cancer, while survival remained largely unchanged. The aim this research was to develop, calibrate verify mathematical disease model simulate natural history papillary which will serve as platform assess effectiveness clinical control interventions.Herein, we modeled pre-clinical course both benign malignant nodules with biologically relevant health states...

10.1371/journal.pone.0177068 article EN cc-by PLoS ONE 2017-05-08

Watch a video presentation of this article The World Health Organization (WHO) recently launched global campaign for eliminating hepatitis C virus (HCV) as public health threat by the year 2030. aims to reduce HCV incidence 80% and HCV-related mortality 65%, primarily through achieving diagnosis rate at least 90% treatment coverage 80%.1 However, most countries do not have national strategy screening that can lead elimination. Elimination will require detection HCV-infected persons who are...

10.1002/cld.1109 article EN publisher-specific-oa Clinical Liver Disease 2021-03-01

Abstract The cost of testing can be a substantial contributor to hepatitis C virus (HCV) elimination program costs in many low- and middle-income countries such as Georgia, resulting the need for innovative cost-effective strategies testing. Our objective was investigate most pathways scaling-up HCV Georgia. We developed Markov-based model with lifetime horizon that simulates natural history HCV, detection treatment HCV. then created an interactive online tool uses results from evaluate...

10.1038/s41598-021-00362-y article EN cc-by Scientific Reports 2021-11-01

Einleitung: Das Auftreten von sehr großen kolorektalen Polypen ist mit erhöhtem Malignitätsrisiko assoziiert, was eine engmaschige Nachsorge erforderlich macht. Die Studie soll den Zusammenhang zwischen Größe und Grad der Dysplasie (≥20 mm) untersuchen. Zudem beiden Faktoren dem weiterer, synchroner deren Differenzierungsgrad analysiert werden.

10.1055/s-0034-1386268 article DE Zeitschrift für Gastroenterologie 2014-08-11
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