Mehrtash Hashemzadeh

ORCID: 0000-0003-4982-8709
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About
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Research Areas
  • Acute Myocardial Infarction Research
  • Coronary Interventions and Diagnostics
  • Cardiac, Anesthesia and Surgical Outcomes
  • Cardiac Imaging and Diagnostics
  • Cardiovascular Function and Risk Factors
  • Cardiac Valve Diseases and Treatments
  • Atrial Fibrillation Management and Outcomes
  • Mechanical Circulatory Support Devices
  • Cardiac Arrest and Resuscitation
  • Cardiovascular Disease and Adiposity
  • Platelet Disorders and Treatments
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Cardiac Structural Anomalies and Repair
  • Cardiac pacing and defibrillation studies
  • Venous Thromboembolism Diagnosis and Management
  • Gallbladder and Bile Duct Disorders
  • Blood properties and coagulation
  • Cardiac Arrhythmias and Treatments
  • Aortic Thrombus and Embolism
  • Infective Endocarditis Diagnosis and Management
  • Appendicitis Diagnosis and Management
  • Nutrition and Health in Aging
  • Healthcare Policy and Management
  • Pain Management and Treatment
  • Heart Failure Treatment and Management

University of Arizona
2009-2025

University of Phoenix
2021-2024

Phoenix (United States)
2021-2023

Pima Community College
2016-2022

VA Long Beach Healthcare System
2012-2022

Phoenix College
2022

Southern Arizona VA Health Care System
2007-2020

Long Beach Medical Center
2005-2014

California State University, Long Beach
2005-2009

Southern California Institute for Research and Education
2007

To evaluate nationwide trends in the utilization of endoscopic retrograde cholangiopancreatography (ERCP) relation to advent noninvasive methods visualizing biliary and pancreatic tree.Retrospective cohort study. The Nationwide Inpatient Sample (NIS) database was used calculate age-adjusted rate for ERCPs performed from 1988 2002. State Ambulatory Surgery Database (SASD) outpatient 1997 2003. Linear Poisson multivariate regression model control variations age, gender, ethnicity among overall...

10.1111/j.1572-0241.2007.01127.x article EN The American Journal of Gastroenterology 2007-02-24

Introduction: Coronary perforation is one of the major complications percutaneous coronary intervention (PCI). The goal this study was to evaluate adverse outcomes and mortality in patients suffering from during PCI above age 30. Methods: National Inpatient Sample database, years 2016–2020, studied using International Classification Diseases, Tenth Revision codes. Patients were compared with without PCI. Results: performed a weighted total 10,059,269 patients. occurred 11,725 (0.12%) all...

10.1097/hpc.0000000000000373 article EN Critical Pathways in Cardiology A Journal of Evidence-Based Medicine 2025-02-21

Background The role of body composition as a risk factor for adverse outcomesduring coronary artery bypass surgery (CABG) has been controversial. goal this study was to evaluate the effect weight on mortality in patients undergoing CABG.

10.1080/14796678.2024.2440247 article EN Future Cardiology 2025-01-05

Background/Objectives: Several studies have attempted to investigate the association between psoriasis and incidence of cardiovascular disease (CVD) including ST-segment elevation myocardial infarction (STEMI), possibly making a risk factor for development CVD. African American (AA) patients higher prevalence factors, representing racial health disparity. There are very limited on STEMIs among this specific patient population. This study aims explore if an exists diagnosis STEMI AA patients....

10.1101/2025.02.14.25322317 preprint EN medRxiv (Cold Spring Harbor Laboratory) 2025-02-16

Background: Cardiac Allograft vasculopathy (CAV) is a significant cause of late transplant failure. Using large database, the study's objective was to assess traditional and infectious risk factors linked occurrence severity CAV. Method: inpatient sample database (NIS), we evaluated any association between CAV viral agents. Additionally, assessed based on revascularizations. Results: A total 78,330 heart recipients were identified. diagnosed in 1,015 patients overall. Patients with had...

10.1101/2025.02.18.25322503 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2025-02-21

Background: The shock trial was the first small, randomized revealing revascularization of patients presenting with ST-elevation myocardial infarction (STEMI) coronary bypass surgery (CABG) have a better survival rate than percutaneous intervention (PCI) goal this study to use largest inpatients database, evaluate mortality STEMI three-vessel disease and cardiogenic undergoing CABG vs PCI. Methode: Using Nationwide Inpatient Sample (NIS) ICD-10 coding for shock, CABG, PCI, we total inpatient...

10.1101/2025.02.25.25322704 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2025-02-28

Abstract Introduction The role of inflammatory disease in the occurrence atrial fibrillation/flutter (Afib/flut) is not well studied. goal this study was to evaluate any association between and autoimmune disorders with occurrences Afib/flut using a large database Methods Using Nationwide Inpatient Sample (NIS) ICD-10 codes for afib/flut years 2016-2020, we evaluated above association. Results A total 23,037,013 patients were identified diagnosis Afib/aflut. following diseases independently...

10.1101/2025.02.28.25323128 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2025-03-03

A phenomenon known as the obesity paradox has been reported in patients with heart failure (HF). The goal of this study is to characterize observation systolic (SHF) and diastolic (DHF) HF. We used National Inpatient Sample (NIS) database for 2016-2020. evaluated mortality based on body weight. total 7,364,023 SHF 10,064,223 DHF were found NIS database. All-cause inpatient was lowest overweight followed by morbid obesity, whereas highest cachexia (mortality: 2.56%, obese 3.12%, morbidly...

10.1080/14796678.2025.2477421 article EN Future Cardiology 2025-03-10

ABSTRACT Introduction Mortality of cardiogenic shock remains high, prompting increased use mechanical circulatory support devices such as Impella. This study sought to characterize whether weight categories predict mortality in patients who received Impella devices. Methods We used data from the National Inpatient Sample (NIS) database years 2016 2020 and ICD‐10‐CM/PCS codes evaluate effect on undergoing implantation. Results A total 86 810 underwent device implantation, with an overall...

10.1111/aor.15000 article EN Artificial Organs 2025-03-21

Background/Objectives: Atrial fibrillation and atrial flutter (Afib/Aflut) are the most common arrhythmias presenting to emergency department. The goal of this study was evaluate any predictor Afib/flut with cardiovascular risk factors demographics based on weight categories. Methods: Using ICD-10 codes from large Nationwide Inpatient Sample (NIS) database in years 2016–2020, we association between presence Afib/Aflut different categories adults over age 18. Results: A total 23,037,013...

10.3390/jcm14072187 article EN Journal of Clinical Medicine 2025-03-23

Abstract The relationship of the dopamine D4 receptor gene ( DRD4 ) to behavioral trait novelty seeking has not been uniformly consistent. A methodological shortcoming in previous studies may relate way different variants were categorized. Because evolutionary and functional (e.g., diminished potency reduce cAMP) similarities between 2‐ 7‐repeat (2R, 7R) alleles , we suggest grouping these two together facilitate detection biologically meaningful reproducible association findings with...

10.1002/ajmg.b.30473 article EN American Journal of Medical Genetics Part B Neuropsychiatric Genetics 2007-05-01

AIM:To assess the risk of biliary and pancreatic cancers in a large cohort patients with type 2 diabetes mellitus (DM). METHODS:Eligibility for this study included DM (ICD-9 code 250.0) who were discharged from Department Veteran Affairs hospitals between 1990 2000.Non-matched control without selected same patient treatment files during period.Demographic information age, sex race.Secondary diagnoses known factors based on their ICD-9 codes.By multivariate logistic regression, occurrence...

10.3748/wjg.15.5274 article EN cc-by-nc World Journal of Gastroenterology 2009-01-01
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