Study of relationship between anthropometric parameters and heart rate-corrected QT interval (QTc) in normal body mass index Indian males with abdominal ... MK Sharma,AA Upadhyah,JV Dhanani,... 被引量: 0发表: 0年 C-reactive protein in young, apparently healthy men: associations with serum le...
Results: Significant age trends were present in, for example, P-wave duration, QTc interval, and frontal QRS axis, with concomitant changes of R amplitudes in the extremity leads. Sex differences existed for heart rate, interval durations, the Sokolow and Cornell indices, and QRS and ST-T ...
This change produces a decrease in the length of the QTc interval. There is a lack of correlation QTc and serum calcium. The interval from the qt to the apex of the T wave can be measured most precisely and shows the best correlation with the Ca level (Fig. 94-29c). First degree ...
(QTc)intervalisquestionableinmany casesandshouldbesupplementedbymanualreading.Incon- sistencybetweenmanufacturersintermsofthealgorithms usedforcalculationoftheintervalsisanotherproblemin theinterpretationofcomputerizedreadings.Somedigitiz- ingmethodsemployadigitizingpad,magnifyinglamp,and pointingdevicetoidentifythe...
Results: Significant age trends were present in, for example, P-wave duration, QTc interval, and frontal QRS axis, with concomitant changes of R amplitudes in the extremity leads. Sex differences existed for heart rate, interval durations, the Sokolow and ...
Age trends were apparent for the QTc interval, QRS axis, and indices of left ventricular hypertrophy. Amplitudes in the left precordial leads showed a substantial increase in the older age groups for women, but not for men. Sex-dependent differences were apparent for most ECG parameters. All ...
QTcObjectivesWe sought to determine whether the relationship between heart rate (HR) and QT interval (QT) differs as HR increases in response to exercise, atropine and isoproterenol.: BackgroundAutonomic nervous system influences on repolarization are poorly understood and may complicate the ...
We report our results of 14 patients who underwent the 'bilayer collagen membrane' technique (BCMT) with a mean follow-up of 5.2 years (2 to 8). There were 12 men and two women with a mean age of 23.6 years (16 to 40). The mean size of the defect was 7.2 cm2 (5.2 to 12 ...
The criteria established for prolonged QTc were: Age < 40 years, men 430 ms, women 440 ms; Age 40 to 69, men 440 ms, women 450 ms; Age ≥ 70 years, men 455 ms, and women 460 ms. Conclusions Sex difference in QTc originates from shortened QT in adolescent...
Temporal measures of repolarization, exemplified by QTc, were found to be moderately sensitive for disease only when highly specific criteria were derived from data at peak exercise heart rates that were significantly higher in normal subjects than in patients; sensitivities of rate-corrected measures ...