John N. Makaryus

ORCID: 0000-0002-9471-1844
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About
Contact & Profiles
Research Areas
  • Cardiac Imaging and Diagnostics
  • Cardiac Arrhythmias and Treatments
  • Cardiac electrophysiology and arrhythmias
  • Cardiac pacing and defibrillation studies
  • Cardiac Valve Diseases and Treatments
  • Cardiovascular Function and Risk Factors
  • Cardiac Structural Anomalies and Repair
  • Coronary Artery Anomalies
  • Atrial Fibrillation Management and Outcomes
  • Acute Myocardial Infarction Research
  • Cardiomyopathy and Myosin Studies
  • Advanced MRI Techniques and Applications
  • Takotsubo Cardiomyopathy and Associated Phenomena
  • Cardiac tumors and thrombi
  • Coronary Interventions and Diagnostics
  • Advanced X-ray and CT Imaging
  • Infective Endocarditis Diagnosis and Management
  • Cardiovascular Disease and Adiposity
  • Cardiovascular Syncope and Autonomic Disorders
  • Cardiovascular and Diving-Related Complications
  • COVID-19 Clinical Research Studies
  • Venous Thromboembolism Diagnosis and Management
  • Diabetes Treatment and Management
  • Cardiovascular Issues in Pregnancy
  • Radiation Dose and Imaging

North Shore University Hospital
2015-2024

Northwell Health
2015-2024

Donald & Barbara Zucker School of Medicine at Hofstra/Northwell
2018-2024

University of Pennsylvania
2024

Hospital of the University of Pennsylvania
2024

Feinstein Institute for Medical Research
2018-2023

Long Island Jewish Medical Center
2013-2023

Hofstra University
2015-2020

Nassau University Medical Center
2020

Rapid City Regional Hospital
2016

Background: Croh n's disease and ulcerative colitis are both systemic chronic diseases that alter bowel physiology. The central process in inflammatory (IBD) the associated manifestations result of B-cell production IgG autoantibodies directed against self-antigens various organ systems including coronary endothelium. Previous studies have demonstrated significant micro-vascular endothelial dysfunction patients with IBD compared to not affected by disease. We sought analyze relation, if any,...

10.14740/jocmr2102w article EN Journal of Clinical Medicine Research 2015-01-01

Background/Objectives: This study investigates the association between mild first-wave COVID-19 infection and subclinical abnormalities in echocardiographic strain parameters myocardial perfusion using single-photon emission computed tomography (SPECT). Methods: We conducted a retrospective analysis of patients from June 2020 to March 2021 with history infection, presenting nonspecific cardiac symptoms referred for SPECT stress testing. Patients had no obstructive coronary artery disease...

10.3390/healthcare13050548 article EN Healthcare 2025-03-04

Rothia dentocariosa is a rare gram-positive bacterial organism, one of the group microbes that normally resides in mouth and respiratory tract. R. rarely causes disease. Documented cases occur chiefly patients with valvular or dental disease, both. We report case previously healthy 58-year-old man who presented evidence endocarditis caused by this organism—which originated from an elusive source. His was successfully treated mitral valve replacement administration antibiotic agents.

10.14503/thij-15-5068 article EN Texas Heart Institute Journal 2016-06-01

Arterial calcium as measured by 64-slice computed tomography coronary angiography (64-CT) is a reliable predictor of cardiovascular disease risk. Lipid-rich plaques with lower degrees calcification may pose greater risk for adverse events than more stabilized calcified result the increased plaque rupture, migration, and subsequent acute syndrome. We sought to examine artery scores via 64-CT assess extent distribution in women compared men.

10.4137/cmc.s18764 article EN cc-by-nc Clinical Medicine Insights Cardiology 2014-01-01

The incidence of hypertension is increasing every year. Blood pressure (BP) control an important therapeutic goal for the slowing progression as well prevention Cardiovascular disease. management in high cardiovascular risk population remains a real challenge continues to age, diabetes increases, and more people survive acute myocardial infarction. We will review population: patients with coronary heart disease (CHD) failure (HF) diabetic patients.

10.1155/2013/382802 article EN cc-by International Journal of Hypertension 2013-01-01

The use of cocaine has become largely obsolete in modern medical practice; however, it is still used by otolaryngologists for topical anesthesia head and neck surgeries. We present the case a 68-year-old woman who developed myocardial infarction after during nasal sinus surgery, review literature regarding as anesthetic otolaryngologic practice. Awareness raised possible complication following use.

10.1097/01.smj.0000223951.68627.32 article EN Southern Medical Journal 2006-07-01

The authors assessed the relationship between glycemia and length of hospital stay (LOS) in a prospective cohort study patients with diabetes mellitus heart failure (HF). Of 212 acute HF exacerbation, 119 (56%) also had diabetes. mean age was 63±0.87 years, body mass index 29.3 kg/m 2 . Diabetic significantly longer LOS compared nondiabetics (5.0±0.29 vs 3.4±0.19; P <.001). In diabetes, glycated hemoglobin A 1c 8.3%, admission blood glucose (BG) 169±7.7 mg/dL, average BG 196±8.1 mg/dL....

10.1111/j.1751-7133.2008.07569.x article EN Congestive Heart Failure 2008-05-01

10.1016/j.amjmed.2008.01.020 article EN The American Journal of Medicine 2008-08-01

Patients with structural heart disease are prone to ventricular tachycardia (VT) and fibrillation (VF), which account for the majority of sudden cardiac deaths (SCDs). We sought examine echocardiographic parameters that can predict VT as documented by implantable cardioverter-defibrillator (ICD) appropriate discharge. other than ejection fraction may recorded via rates ICD discharge.Analysis 586 patients (469 males; mean age = 68 ± 3 years; follow-up time 11 14 months) was undertaken. Echo...

10.4137/cmc.s18499 article EN cc-by-nc Clinical Medicine Insights Cardiology 2014-01-01

The dual left anterior descending (LAD) artery is a rare anatomic variant of the LAD that refers to duplication into short and long LAD. These two vessels, differentiated based on their lengths, ultimately provide blood supply areas normally covered by In this case report, we describe an unusual type IV system with additional finding separate origin for circumflex (LCx) artery. findings have not been reported together in literature previously. During diagnostic procedures like coronary...

10.7759/cureus.61953 article EN Cureus 2024-06-08

Goals: Mavacamten not only promotes favorable cardiac remodeling in obstructive hypertrophic cardiomyopathy but can also unmask additional underlying structural abnormalities. Description of Case: An 80-year-old man with atrial fibrillation and basal septal hypertrophy an intracardiac defibrillator, presented due to six months exertional dyspnea. Transthoracic echocardiography (TTE) revealed severe (1.7cm) systolic anterior motion (SAM) the mitral valve leaflet (peak LVOT gradient 104 mm Hg;...

10.1161/circ.150.suppl_1.4140442 article EN Circulation 2024-11-12

The agents used for nuclear stress testing (NST) including adenosine, dobutamine, and dipyridamole, are generally well tolerated the incidence of serious complications associated with their use in NST is relatively low. Adenosine possesses a potent inhibitory effect on atrioventricular (AV) node may induce transient conduction defect which could result first-, second-, or third-degree heart block some patients. AV nodal blocker adenosine patients evidence underlying system disease...

10.2459/jcm.0b013e3282785288 article EN Journal of Cardiovascular Medicine 2008-03-01

10.1016/j.ajem.2007.10.040 article EN The American Journal of Emergency Medicine 2008-07-01

We sought to evaluate the utility of multidetector computed tomography (MDCT) in preoperative planning cardiac resynchronization therapy (CRT) device implantation.Variation coronary venous anatomy can affect optimal lead placement and may warrant preimplantation visualization prior CRT placement.Prospective randomized enrollment 29 patients (17 males; mean age at implant 66.7 ± 12.8 years) was undertaken. Patients were MDCT (GE(®) 64-detector Lightspeed, n = 16) or no MDCT. Implantation...

10.4137/cmc.s18762 article EN cc-by-nc Clinical Medicine Insights Cardiology 2014-01-01
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