Independent prognostic value of left ventricular contractile reserve and chronotropic response in patients with reduced left ventricular ejection fraction undergoing vasodilator stress myocardial perfusion imaging with Rb-82 positron emission tomography

Autor: Lee Fong Ling, Manuel D. Cerqueira, Balaji Tamarappoo, Rory Hachamovitch
Rok vydání: 2017
Předmět:
Male
medicine.medical_specialty
Cardiac output
Cardiac Output
Low
030204 cardiovascular system & hematology
Risk Assessment
030218 nuclear medicine & medical imaging
Cohort Studies
Ventricular Dysfunction
Left
03 medical and health sciences
Myocardial perfusion imaging
0302 clinical medicine
Predictive Value of Tests
Internal medicine
Heart rate
medicine
Humans
Radiology
Nuclear Medicine and imaging
Aged
Proportional Hazards Models
Retrospective Studies
Ejection fraction
medicine.diagnostic_test
Proportional hazards model
business.industry
Hazard ratio
Age Factors
Myocardial Perfusion Imaging
Stroke Volume
General Medicine
Middle Aged
Prognosis
Survival Analysis
Dipyridamole
Positron-Emission Tomography
Predictive value of tests
Cardiology
Female
Cardiology and Cardiovascular Medicine
business
Rubidium Radioisotopes
Echocardiography
Stress
medicine.drug
Zdroj: European Heart Journal - Cardiovascular Imaging. 19:442-449
ISSN: 2047-2412
2047-2404
DOI: 10.1093/ehjci/jex157
Popis: Objectives We evaluated the prognostic value of heart rate reserve (ΔHR) and left ventricular ejection fraction reserve (ΔLVEF) among patients with systolic dysfunction. Background Inadequate ΔHR (maximal stress HR - resting HR) and ΔLVEF (LVEF at stress - LVEF at rest) in response to stress are associated with adverse cardiac events. However, the significance of an abnormal ΔHR and ΔLVEF in patients with systolic dysfunction has not been described. Methods and results We performed a retrospective analysis of patients with rest LVEF
Databáze: OpenAIRE
Externí odkaz: