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Heart

Twenty three cases that fell outside the normal patterns of variation of heart rate and rhythm were evaluated by echocardiography. Recognition that an arrhythmia is present and appropriate prenatal ...

British Heart Journal, Research Article, L D Allan, R H Anderson, I D Sullivan, S Campbell, D W Holt, M Tynan

Date : 01/09/1983
Heart

Tlog increased from 49 (10) ms mean (SD), at 37 degrees C to 86 (15) ms at 31 degrees C, and Texp from 63(14) at 37 degrees C to 112 (23) ms at 31 degrees C with intermediate values at 34 degrees C. ...

British Heart Journal, Research Article, R A Luke, C E Gillbe, R S Bonser, M Paneth, D Somerset, J Thomas, D G Gibson

Date : 01/05/1989
Heart

Myocardial substrate extraction, coronary sinus flow, left ventricular pressure, and cardiac output were measured in 11 patients with angina pectoris at three pacing rates before and after atenolol ...

British Heart Journal, Research Article, D S Thompson, N Naqvi, S M Juul, D J Coltart, B S Jenkins, M M Webb-Peploe

Date : 01/06/1980
Heart

The increased heart rate produced by both agents caused a substantial decrease in both the QT and the S1S2 intervals, but the QT interval was longer and the S1S2 interval shorter with the amyl ...

British Heart Journal, Research Article, L E Ford, N P Campbell

Date : 01/08/1980
Heart

Analysis of jugular tracings in seven normal subjects in sinus rhythm whose heart rate varied spontaneously from one moment to another during expiratory apnoea, showed that a pronounced variation ...

British Heart Journal, Research Article, J M Thiron, A Cribier, J L Cazor, B Letac

Date : 01/07/1980
Heart

The mean falls in left atrial pressure and systemic vascular resistance were similar with the two drugs but salbutamol caused a greater increase in heart rate, maximum acceleration of aortic blood ...

British Heart Journal, Research Article, P A Poole-Wilson, G Lewis, T Angerpointer, A D Malcolm, B T Williams

Date : 01/07/1977
Heart

The effect on myocardial perfusion distribution of intracoronary glyceryl trinitrate in a dose (60 micrograms) insufficient to cause alterations in systemic blood pressure or heart rate was studied ...

British Heart Journal, Research Article, R W Wald, L Sternberg, D H Feiglin, J E Morch

Date : 01/08/1980
Heart

Relation of human cardiac action potential duration to the interval between beats: implications for the validity of rate corrected QT interval (QTc). An increase in steady state pacing frequency ...

British Heart Journal, Research Article, W A Seed, M I Noble, P Oldershaw, R B Wanless, A J Drake-Holland, D Redwood, S Pugh, C Mills

Date : 01/01/1987
Heart

The efficacy of labetalol, an alpha and beta receptor antagonist, was evaluated in 12 normotensive patients with stable angina pectoris in a single blind dose ranging study. Trough point exercise ...

British Heart Journal, Research Article, J W Upward, F Akhras, G Jackson

Date : 01/01/1985
Heart

High fidelity measurements of left ventricular pressure were made at increasing pacing rates in 21 patients with hypertrophic cardiomyopathy and a control group of 11 patients investigated for chest ...

British Heart Journal, Research Article, D S Thompson, P Wilmshurst, S M Juul, C B Waldron, B S Jenkins, D J Coltart, M M Webb-Peploe

Date : 01/03/1983