4,629 results match your criteria: "Department of Clinical Epidemiology and Biostatistics[Affiliation]"
World J Surg Oncol
May 2023
Department of Stomach Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, Republic of Korea.
Background: We aimed to examine the technical and oncological safety of curative gastrectomy for gastric cancer patients who underwent liver transplantation.
Methods: In this study, we compared the surgical and oncological outcomes of two groups. The first group consisted of 32 consecutive patients who underwent curative gastrectomy for gastric cancer after liver transplantation (LT), while the other group consisted of 127 patients who underwent conventional gastrectomy (CG).
Radiology
June 2023
From the Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea (S.M.H., W.K.M., J.M.C.); Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea (S.M.H., W.K.M., J.M.C.); Department of Radiology, University of Washington School of Medicine, Seattle, Wash (J.M.L.); and Department of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine, Seoul, Republic of Korea (S.O.K.).
Background The wide variability of screening imaging use in patients with a personal history of breast cancer (PHBC) warrants investigation of its comparative clinical effectiveness. While more intensive screening with US or MRI at an interval of less than 1 year could increase early-stage breast cancer detection, its benefit has not been established. Purpose To investigate the outcomes of semiannual multimodality screening in patients with PHBC.
View Article and Find Full Text PDFEur Radiol
August 2023
Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Objectives: An appropriate and fast clinical referral suggestion is important for intra-axial mass-like lesions (IMLLs) in the emergency setting. We aimed to apply an interpretable deep learning (DL) system to multiparametric MRI to obtain clinical referral suggestion for IMLLs, and to validate it in the setting of nontraumatic emergency neuroradiology.
Methods: A DL system was developed in 747 patients with IMLLs ranging 30 diseases who underwent pre- and post-contrast T1-weighted (T1CE), FLAIR, and diffusion-weighted imaging (DWI).
Cervical cancer is still an important cause of death in countries like Colombia. We aimed to determine whether socioeconomic status of residential address (SES) and type of health insurance affiliation (HIA) might be associated with cervical cancer survival among women in Bucaramanga, Colombia. All patients residing in the Bucaramanga Metropolitan Area diagnosed with invasive cervical cancer (ICD-0-3 codes C53.
View Article and Find Full Text PDFIntest Res
April 2023
Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Br J Haematol
July 2023
Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.
Patients who receive allogeneic haematopoietic stem cell transplantation (allo-HSCT) may develop sepsis, which result in a highly intensive care unit admission rate and mortality. Therefore, short-term and long-term prognostic models for sepsis after allo-HSCT are urgently needed. We enrolled patients receiving allo-HSCT who developed sepsis after allo-HSCT at Peking University People's Hospital between 2012 and 2021, including 287 patients who received allo-HSCT in 2018-2021 in the derivation cohort, and 337 patients in 2012-2017 in the validation cohort.
View Article and Find Full Text PDFEur J Cardiothorac Surg
June 2023
Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Objectives: Comparisons of long-term clinical outcomes of mitral valve replacement (MVR) between bovine pericardial and porcine bioprostheses are conflicting, with limited research in large-scale real-world clinical settings. This study examined clinical outcomes in MVR according to bioprosthesis type using a national administrative claims database.
Methods: This study included adult patients undergoing bioprosthetic MVR between 2003 and 2018 using administrative health care data from the Korean National Health Insurance Service database.
BMC Infect Dis
April 2023
Knowledge Translation Program, Evidence and Intelligence for Action in Health Department, Pan American Health Organization, Washington, DC, USA.
Background: Viral reactivations and co-infections have been reported among COVID-19 patients. However, studies on the clinical outcomes of different viral reactivations and co-infections are currently in limit. Thus, the primary purpose of this review is to perform an overarching investigation on the cases of latent virus reactivation and co-infection in COVID-19 patients to build collective evidence contributing to improving patient health.
View Article and Find Full Text PDFBMC Palliat Care
April 2023
Department of Clinical Epidemiology and Biostatistics, Pontificia Universidad Javeriana, Bogotá, Colombia.
Background: In Colombia, cancer incidence is increasing, as is the demand for end-of-life care. Understanding how patients who die from cancer experience this phase will allow the identification of factors associated with greater suffering and actions to improve end-of-life care. We aimed to explore associations between the level of suffering of patients who died from cancer and were cared for in three Colombian hospitals with patient, tumor, treatment, and care characteristics and provided information.
View Article and Find Full Text PDFFront Neurol
April 2023
Mahidol University Health Technology Assessment (MUHTA) Graduate Program, Mahidol University, Bangkok, Thailand.
J Pediatr Urol
August 2023
Service de Chirurgie Pédiatrique, Hôpital Pellegrin-Enfants, CHU de Bordeaux, France. Electronic address:
J Thorac Dis
March 2023
Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Background: Cardiogenic shock is associated with significant morbidity and mortality. Invasive hemodynamic monitoring with pulmonary artery catheterization (PAC) can be useful in the assessment of changes in cardiac function and hemodynamic status; however, the benefits of PAC in the management of cardiogenic shock are not known well.
Methods: We performed a systematic review and meta-analysis of observational studies and randomized controlled trials, comparing in-hospital mortality between PAC and non-PAC groups of cardiogenic shock patients with various underlying causes.
Eur Radiol
September 2023
Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea.
Objectives: To develop and validate a nomogram based on MRI features for predicting iNPH.
Methods: Patients aged ≥ 60 years (clinically diagnosed with iNPH, Parkinson's disease, or Alzheimer's disease or healthy controls) who underwent MRI including three-dimensional T1-weighted volumetric MRI were retrospectively identified from two tertiary referral hospitals (one hospital for derivation set and the other for validation set). Clinical and imaging features for iNPH were assessed.
J Clin Med
March 2023
Department of Obstetrics and Gynecology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.
This study investigated the effects of amnioreduction before physical examination-indicated cerclage on pregnancy outcomes using a propensity score matching analysis. This multicenter retrospective cohort study included women who underwent cerclage operations due to painless cervical dilation in the second trimester (14-28 weeks). The primary outcome was the time from operation until delivery.
View Article and Find Full Text PDFJAMA Surg
June 2023
Division of General Surgery, McMaster University, Hamilton, Ontario, Canada.
Importance: Excess adiposity confers higher risk of breast cancer for women. For women who have lost substantial weight, it is unclear whether previous obesity confers residual increased baseline risk of breast cancer compared with peers without obesity.
Objectives: To determine whether there is a residual risk of breast cancer due to prior obesity among patients who undergo bariatric surgery.
Sci Rep
April 2023
Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Lung
April 2023
Internal Medicine Department, University Hospital Dr Negrín, Las Palmas de Gran Canaria, Spain.
Background: Oxygen desaturation during exercise is mainly observed in severe cases of chronic obstructive pulmonary disease (COPD) and is associated with a worse prognosis, but little is known about the type of desaturation that causes the greatest risk of mortality.
Material And Methods: We studied all of the 6-min walk tests performed periodically at a tertiary hospital over a period of 12 years in patients with moderate or severe COPD. We classified patients as non-desaturators if they did not suffer a drop in oxygen saturation (SpO2 < 88%) during the test, early desaturators if the time until desaturation was < 1 min, and non-early desaturators if it was longer than 1 min.
Ecotoxicol Environ Saf
May 2023
National Institute of Environmental Health, Chinese Centers for Disease Control and Prevention, Beijing, China; School of Public Health, Anhui Medical University, Hefei, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China; School of Public Health and Social Work, Queensland University of Technology, Brisbane, QLD, Australia. Electronic address:
Inconsistent evidence exists about whether exposure to greenspace benefits childhood asthma. Previous studies have only focused on residential or school greenspace, and no research has combined greenspace exposures at both homes and schools to determine their link with childhood asthma. A population-based cross-sectional study was conducted among 16,605 children during 2019 in Shanghai, China.
View Article and Find Full Text PDFEur Radiol
September 2023
Department of Brain and Cognitive Engineering, Korea University, Seoul, Republic of Korea.
Objectives: We aimed to evaluate the effect of hepatic steatosis (HS) on liver volume and to develop a formula to estimate lean liver volume correcting the HS effect.
Methods: This retrospective study included healthy adult liver donors who underwent gadoxetic acid-enhanced MRI and proton density fat fraction (PDFF) measurement from 2015 to 2019. The degree of HS was graded at 5% PDFF intervals from grade 0 (no HS; PDFF < 5.
Acta Diabetol
July 2023
Department of Clinical Epidemiology and Biostatistics, Pontificia Universidad Javeriana, Bogotá, Colombia.
Background And Aims: Evidence supports the efficacy and safety of the Hybrid Close loop (HCL) system in patients with type 1 diabetes (T1D). However, limited data are available on the long-term outcomes of patients on HCL with telemedicine follow-up.
Methods: A prospective observational cohort study including T1D patients, who were upgrading to HCL system.
Cochrane Database Syst Rev
April 2023
Blanquerna Faculty of Health Sciences. GRoW, Global Research on Wellbeing, Ramon Llull University, Barcelona, Spain.
Background: Acute bronchiolitis is the leading cause of medical emergencies during winter months in infants younger than 24 months old. Chest physiotherapy is sometimes used to assist infants in the clearance of secretions in order to decrease ventilatory effort. This is an update of a Cochrane Review first published in 2005 and updated in 2006, 2012, and 2016.
View Article and Find Full Text PDFItal J Pediatr
April 2023
Department of Neonatology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 1678 DongFang Road, 200127, Shanghai, China.
Background: Maternal systemic lupus erythematosus (SLE) is at greater risk of pregnancy complications and is associated with increased risk of preterm delivery. However hardly any study has looked at the influence of SLE on the outcomes of preterm infants. This study aimed to explore the influence of SLE on the outcomes of preterm infants.
View Article and Find Full Text PDFBMC Pediatr
March 2023
Department of Endocrinology and Metabolism, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Background: Dyslipidemia, especially hypercholesterolemia is of significant clinical interest. Precise diagnosis is not paid enough attention to about the management of pediatric patients with hypercholesterolemia, which is especially apparent in China. Given this, we designed this study to confirm the specific molecular defects associated with hypercholesterolemia using whole-exome sequencing (WES) to be helpful for precise diagnosis and treatment.
View Article and Find Full Text PDFGut Liver
November 2023
Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Gyeongsang National University College of Medicine, Changwon, Korea.
Background/aims: Although an association between achalasia and esophageal cancer has been reported, whether achalasia confers a substantial increase in mortality is unknown. Moreover, the causes of death related to achalasia have not been investigated. We performed this nationwide, population-based cohort study on achalasia because no such study has been performed since the introduction of high-resolution manometry in 2008.
View Article and Find Full Text PDFStat Med
June 2023
Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA.
Prognostic models are useful tools for assessing a patient's risk of experiencing adverse health events. In practice, these models must be validated before implementation to ensure that they are clinically useful. The concordance index (C-Index) is a popular statistic that is used for model validation, and it is often applied to models with binary or survival outcome variables.
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