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Relation between ECG strain pattern and left ventricular morphology, left ventricular function, and DPTI/SPTI ratio in patients with aortic regurgitation. 1994

L Badano, and P Rubartelli, and L Giunta, and F Della Rovere, and F Miccoli, and A Lucatti
Servizio di Cardiologia, Ospedale di Nervi, Genoa, Italy.

The relative contributions of left ventricular structural changes, dysfunction, and subendocardial ischemia in determining electrocardiographic repolarization abnormalities were assessed in 53 patients with chronic, pure aortic regurgitation and no evidence of coronary artery disease. Thirty-six patients with an abnormal electrocardiographic pattern of repolarization showed larger end-diastolic (154 +/- 46 vs 120 +/- 32 mL/m2; P < .001) and end-systolic (80 +/- 40 vs 52 +/- 30 mL/m2; P = .016) volumes, higher end-diastolic pressure (22 +/- 11 vs 15 +/- 10 mmHg; P = .021), lower ejection fraction (52 +/- 12 vs 59 +/- 13%; P < .05) and greater mass (168 +/- 48 vs 140 +/- 44 g/m2; P < .05) of the left ventricle compared to 17 patients with normal repolarization. Furthermore, patients with repolarization abnormalities also showed higher peak meridian (217 +/- 68 vs 153 +/- 92 Kdyne/cm2; P < .001) and circumferential (358 +/- 110 vs 259 +/- 153 Kdyne/cm2; P < .001) stress and a more spherical shape (end-diastolic shape: 1.4 +/- 0.1 vs 1.5 +/- 0.2, P = .046; end-systolic shape: 1.7 +/- 0.3 vs 1.9 +/- 0.3, P = .026) of the left ventricle. Patients with secondary repolarization abnormalities were also older than patients with normal repolarization (56 +/- 10 vs 40 +/- 11 years; P < .001). However, the diastolic pressure-time index/systolic pressure-time index, which is an estimate of the myocardial oxygen supply-to-demand ratio, was similar in both groups of patients (0.74 +/- 0.3 vs 0.8 +/- 0.2; P = NS).(ABSTRACT TRUNCATED AT 250 WORDS)

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D002302 Cardiac Output The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat). Cardiac Outputs,Output, Cardiac,Outputs, Cardiac
D002908 Chronic Disease Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care (Dictionary of Health Services Management, 2d ed). For epidemiological studies chronic disease often includes HEART DISEASES; STROKE; CANCER; and diabetes (DIABETES MELLITUS, TYPE 2). Chronic Condition,Chronic Illness,Chronically Ill,Chronic Conditions,Chronic Diseases,Chronic Illnesses,Condition, Chronic,Disease, Chronic,Illness, Chronic
D002933 Cineradiography Motion picture study of successive images appearing on a fluoroscopic screen. Cinefluorography,Radiocinematography,Cinefluorographies,Cineradiographies,Radiocinematographies
D003326 Coronary Circulation The circulation of blood through the CORONARY VESSELS of the HEART. Circulation, Coronary
D004562 Electrocardiography Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY. 12-Lead ECG,12-Lead EKG,12-Lead Electrocardiography,Cardiography,ECG,EKG,Electrocardiogram,Electrocardiograph,12 Lead ECG,12 Lead EKG,12 Lead Electrocardiography,12-Lead ECGs,12-Lead EKGs,12-Lead Electrocardiographies,Cardiographies,ECG, 12-Lead,EKG, 12-Lead,Electrocardiograms,Electrocardiographies, 12-Lead,Electrocardiographs,Electrocardiography, 12-Lead
D004699 Endocardium The innermost layer of the heart, comprised of endothelial cells. Endocardiums
D005260 Female Females

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