Ryan S Zamanzadeh

ORCID: 0000-0002-8654-8004
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About
Contact & Profiles
Research Areas
  • Hip and Femur Fractures
  • Orthopaedic implants and arthroplasty
  • Total Knee Arthroplasty Outcomes
  • Pelvic and Acetabular Injuries
  • Bone fractures and treatments
  • Trauma and Emergency Care Studies
  • Cardiovascular and exercise physiology
  • Cardiac, Anesthesia and Surgical Outcomes
  • Orthopedic Infections and Treatments
  • Peripheral Artery Disease Management
  • Cardiovascular Function and Risk Factors
  • Reconstructive Surgery and Microvascular Techniques
  • Cardiomyopathy and Myosin Studies
  • Health Systems, Economic Evaluations, Quality of Life
  • Heterotopic Ossification and Related Conditions
  • Advanced MRI Techniques and Applications
  • Hormonal Regulation and Hypertension
  • Shoulder and Clavicle Injuries
  • Functional Brain Connectivity Studies
  • Infrared Thermography in Medicine
  • Medical Imaging and Pathology Studies
  • Trauma Management and Diagnosis
  • Renal and Vascular Pathologies
  • Cardiovascular Effects of Exercise
  • Blood Pressure and Hypertension Studies

Emory University
2022-2024

Tel Aviv Sourasky Medical Center
2023-2024

Tel Aviv University
2023-2024

Duke University
2022

Vanderbilt University
2022

Mayo Clinic in Arizona
2022

Mayo Clinic
2022

Abstract Aims The study aims to investigate exercise‐limiting factors in hypertrophic cardiomyopathy (HCM) using combined stress echocardiography and cardiopulmonary exercise test. Methods results A symptom‐limited ramp bicycle test was performed the semi‐supine position on a tilting dedicated ergometer. Echocardiographic images were obtained concurrently with gas exchange measurements along predefined stages of exercise. Oxygen extraction calculated Fick equation at each activity level....

10.1002/ehf2.14776 article EN cc-by-nc-nd ESC Heart Failure 2024-04-18

To explore the association between time to surgery (TTS) and postoperative complications in geriatric patients with acetabular fractures.Retrospective cohort study.Level I trauma center.51 consecutive (60 years of age or older) who presented a Level 1 center for surgical fixation an fracture 2013 2020.The primary secondary outcomes were 30-day length hospital stay (LOS), respectively. TTS was determined by arrival ED surgery, threshold 48 hours (early vs. delayed group).Nineteen (37.3%) had...

10.1097/bot.0000000000002568 article EN Journal of Orthopaedic Trauma 2023-02-02

Heterotopic ossification (HO) in the knee after tibial intramedullary nailing (IMN) has yet to be thoroughly investigated. Our aim was assess frequency and associated factors for HO IMN.

10.5435/jaaosglobal-d-23-00258 article EN cc-by-nc-nd JAAOS Global Research and Reviews 2024-02-01

Abstract Background Data to delineate exercise intolerance in patients with peripheral arterial disease (PAD) are scarce. We used a combined stress echocardiography and cardiopulmonary test (CPET) explore effort PAD. Methods Twenty-eight who had both PAD coronary artery (CAD) were compared sex age-matched 31 CAD 15 normal controls using symptom-limited ramp bicycle CPET on tilting dedicated ergometer. Echocardiographic images obtained concurrently gas exchange measurements along predefined...

10.1101/2023.02.24.23286441 preprint EN cc-by-nd medRxiv (Cold Spring Harbor Laboratory) 2023-02-27

We used a combined stress echocardiography and cardiopulmonary exercise test (CPET) to explore effort intolerance in peripheral arterial disease (PAD) patients. Twenty-three patients who had both PAD coronary artery (CAD) were compared with twenty-four sex- age-matched CAD fifteen normal controls using symptom-limited ramp bicycle CPET on tilting dedicated ergometer. Echocardiographic images obtained concurrently gas exchange measurements along predefined stages of exercise. Oxygen...

10.3390/jcm12185817 article EN Journal of Clinical Medicine 2023-09-07
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