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Iranian Heart Journal، جلد ۴، شماره ۴، صفحات ۳۱-۳۵
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی SURFACE ECG: AN ACCEPTABLE METHOD FOR EVALUATING LV FUNCTION IN LBBB CASES
چکیده انگلیسی مقاله Background- Electrocardiography is one of the oldest, easiest, simplest and most ‎important inexpensive paraclinical tools in cardiology. Being able to use this easy ‎method with enough sensitivity would be a great aid to the cardiologist in evaluating a ‎common problem like congestive heart failure (CHF‏).Method- Two hundred cases with left bundle branch block (LBBB) were chosen and ‎divided into two groups: QRS duration less than 120msec in the first group, and more ‎than 120msec in the second group. Left ventricular ejection fraction (LVEF) was ‎studied by 2D, M-mode and Doppler echocardiography as an index of LV systolic ‎function‏.‏ Results- In cases with QRS duration less than 120msec, LVEF averaged between 40-‎‎50%. In the other group with QRS duration more than or equal 120mseconds, LVEF ‎was between 30-40%. Finally, when QRS duration exceeded 160msec, almost all of ‎the patients had LVEF less than 30%‎‏.‏Conclusion- LV systolic function could be estimated with an acceptable sensitivity by ‎observing surface ECG in LBBB cases. This observation may lead to conceptual ‎support for attempts at normalizing QRS duration by biventricular or multi-site ‎ventricular pacing in patients with severe LV systolic dysfunction (Iranian Heart ‎Journal 2003; 4 (4):31-34‎‏).  
کلیدواژه‌های انگلیسی مقاله QRS COMPLEX DURATIONO LBBBM LV FUNCTION
نویسندگان مقاله Mahmood Shabestari |
MASHHAD , IRAN

L. ALI ZADEH |


نشانی اینترنتی http://journal.iha.org.ir/article_83641_8497908d8a1bc382154e6f1674876cba.pdf
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