The Experts below are selected from a list of 2913 Experts worldwide ranked by ideXlab platform

Wang Yi-tong - One of the best experts on this subject based on the ideXlab platform.

Barry I. Saul - One of the best experts on this subject based on the ideXlab platform.

  • prolonged qrs duration qrs 170 ms and Left Axis Deviation in the presence of Left bundle branch block a marker of poor Left ventricular systolic function
    American Heart Journal, 2001
    Co-Authors: Mithilesh K. Das, Kuruvilla Cheriparambil, Ashwini Bedi, John Kassotis, Eng Sci D, C.v.r. Reddy, Majesh Makan, Christopher C. Dunbar, Barry I. Saul
    Abstract:

    Abstract Background Left bundle branch block (LBBB) is commonly associated with structural heart disease and Left ventricular dysfunction. We propose that the QRS duration and degree of Left-Axis Deviation (LAD) identify significant Left ventricular systolic dysfunction in patients with LBBB. Methods In this prospective study the ejection fraction (EF) of 300 consecutive patients with LBBB was evaluated by echocardiography. The relationship between QRS duration and LAD (Axis between –30° and –90°) and EF were derived. Results There was no significant difference in age, sex, presence of ischemic or nonischemic cardiomyopathy and valvular heart disease, and EF among the patients with or without LAD. The EF of patients with QRS ≥170 milliseconds with LAD (n = 20) and without LAD (n = 18) was 25% ± 16% and 23% ± 13%, respectively (P =.71). The mean EF (24% ± 10%) of the patients with a QRS duration of ≥170 milliseconds (n = 38) was significantly lower than the mean EF (36% ± 16%) of the patients with a QRS duration of

  • Prolonged QRS duration (QRS ≥170 ms) and Left Axis Deviation in the presence of Left bundle branch block: A marker of poor Left ventricular systolic function ?
    American heart journal, 2001
    Co-Authors: Mithilesh K. Das, Kuruvilla Cheriparambil, Ashwini Bedi, John Kassotis, Eng Sci D, C.v.r. Reddy, Majesh Makan, Christopher C. Dunbar, Barry I. Saul
    Abstract:

    Abstract Background Left bundle branch block (LBBB) is commonly associated with structural heart disease and Left ventricular dysfunction. We propose that the QRS duration and degree of Left-Axis Deviation (LAD) identify significant Left ventricular systolic dysfunction in patients with LBBB. Methods In this prospective study the ejection fraction (EF) of 300 consecutive patients with LBBB was evaluated by echocardiography. The relationship between QRS duration and LAD (Axis between –30° and –90°) and EF were derived. Results There was no significant difference in age, sex, presence of ischemic or nonischemic cardiomyopathy and valvular heart disease, and EF among the patients with or without LAD. The EF of patients with QRS ≥170 milliseconds with LAD (n = 20) and without LAD (n = 18) was 25% ± 16% and 23% ± 13%, respectively (P =.71). The mean EF (24% ± 10%) of the patients with a QRS duration of ≥170 milliseconds (n = 38) was significantly lower than the mean EF (36% ± 16%) of the patients with a QRS duration of

Xianglin Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Dextrocardia: Why Significant Left-Axis Deviation?
    Circulation, 2017
    Co-Authors: Renguang Liu, Xianglin Zhang
    Abstract:

    A 29-year-old male presented to the cardiology department with a 2-day history of aggravating choking sensation in the chest and symptoms of heart failure. He had a history of congenital heart disease diagnosed at 2 years of age. Physical examination revealed orthopnea, cyanosis, apical impulse located on the right side of his chest, and hepatic dullness located in the Left subcostal region. A 12-lead ECG is shown in Figure 1. The ECG was inconsistent with typical ECG characteristics of mirror-image dextrocardia because R wave progression occurred in leads V1 through V6, although the R wave amplitude decreased progressively. How should we analyze ECG combined with clinical findings to confirm our diagnosis? Figure 1. Standard 12-lead ECG on admission. The 12-lead ECG on admission showed an inverted P wave in leads I and aVL (downward arrows), and the electric Axis of the heart was −75°. The QRS complexes …

R A Leather - One of the best experts on this subject based on the ideXlab platform.

Mithilesh K. Das - One of the best experts on this subject based on the ideXlab platform.

  • prolonged qrs duration qrs 170 ms and Left Axis Deviation in the presence of Left bundle branch block a marker of poor Left ventricular systolic function
    American Heart Journal, 2001
    Co-Authors: Mithilesh K. Das, Kuruvilla Cheriparambil, Ashwini Bedi, John Kassotis, Eng Sci D, C.v.r. Reddy, Majesh Makan, Christopher C. Dunbar, Barry I. Saul
    Abstract:

    Abstract Background Left bundle branch block (LBBB) is commonly associated with structural heart disease and Left ventricular dysfunction. We propose that the QRS duration and degree of Left-Axis Deviation (LAD) identify significant Left ventricular systolic dysfunction in patients with LBBB. Methods In this prospective study the ejection fraction (EF) of 300 consecutive patients with LBBB was evaluated by echocardiography. The relationship between QRS duration and LAD (Axis between –30° and –90°) and EF were derived. Results There was no significant difference in age, sex, presence of ischemic or nonischemic cardiomyopathy and valvular heart disease, and EF among the patients with or without LAD. The EF of patients with QRS ≥170 milliseconds with LAD (n = 20) and without LAD (n = 18) was 25% ± 16% and 23% ± 13%, respectively (P =.71). The mean EF (24% ± 10%) of the patients with a QRS duration of ≥170 milliseconds (n = 38) was significantly lower than the mean EF (36% ± 16%) of the patients with a QRS duration of

  • Prolonged QRS duration (QRS ≥170 ms) and Left Axis Deviation in the presence of Left bundle branch block: A marker of poor Left ventricular systolic function ?
    American heart journal, 2001
    Co-Authors: Mithilesh K. Das, Kuruvilla Cheriparambil, Ashwini Bedi, John Kassotis, Eng Sci D, C.v.r. Reddy, Majesh Makan, Christopher C. Dunbar, Barry I. Saul
    Abstract:

    Abstract Background Left bundle branch block (LBBB) is commonly associated with structural heart disease and Left ventricular dysfunction. We propose that the QRS duration and degree of Left-Axis Deviation (LAD) identify significant Left ventricular systolic dysfunction in patients with LBBB. Methods In this prospective study the ejection fraction (EF) of 300 consecutive patients with LBBB was evaluated by echocardiography. The relationship between QRS duration and LAD (Axis between –30° and –90°) and EF were derived. Results There was no significant difference in age, sex, presence of ischemic or nonischemic cardiomyopathy and valvular heart disease, and EF among the patients with or without LAD. The EF of patients with QRS ≥170 milliseconds with LAD (n = 20) and without LAD (n = 18) was 25% ± 16% and 23% ± 13%, respectively (P =.71). The mean EF (24% ± 10%) of the patients with a QRS duration of ≥170 milliseconds (n = 38) was significantly lower than the mean EF (36% ± 16%) of the patients with a QRS duration of