نتایج جستجو برای: qrs complex

تعداد نتایج: 788608  

Journal: :Journal of Nippon Medical School = Nippon Ika Daigaku zasshi 2002
Yasumi Endoh Hirotsugu Atarashi Hirokazu Hayakawa Kouichi Nagasawa Hiroshi Kishida Teruo Takano

BACKGROUND A wide QRS complex is not a rare electrocardiographic phenomenon at the termination of paroxysmal supraventricular tachycardia (PSVT), but no plausible underlying mechanism has yet been proposed. The purpose of the present study was to elucidate the frequency and the underlying mechanism of the wide QRS complexes at the termination of PSVT. METHODS We retrospectively reviewed 305 e...

Journal: :Journal of the American College of Cardiology 2006
Gabe B Bleeker Eduard R Holman Paul Steendijk Eric Boersma Ernst E van der Wall Martin J Schalij Jeroen J Bax

OBJECTIVES The purpose of this study was to evaluate the effects of cardiac resynchronization therapy (CRT) in heart failure patients with narrow QRS complex (<120 ms) and evidence of left ventricular (LV) dyssynchrony on tissue Doppler imaging (TDI). BACKGROUND Cardiac resynchronization therapy is beneficial in selected heart failure patients with wide QRS complex (> or =120 ms). Patients wi...

Journal: :Journal of Cardiology & Cardiovascular Therapy 2019

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
abdolrasoul moloudi dept. of cardiology, school of medicine, kermanshah university of medical sciences, kermanshah fereidoun sabzi dept. of cardiology, school of medicine, kermanshah university of medical sciences, kermanshah behzad hajimoradi dept. of cardiology, school of medicine, kermanshah university of medical sciences, kermanshah

background: many factors influence the prognosis of patients with (chf), among these; more attention has been focused on the role of left bundle branch block (lbbb).  the present study was performed to find out the prevalence of chf in lbbb patients. methods: in this cross-sectional study, 246 were diagnosed consecutive patients with lbbb pattern in ecg during july 2004 until october 2006 at im...

Journal: :Singapore Medical Journal 2014

Journal: :International Journal of Bio-Science and Bio-Technology 2015

Journal: :Journal of Cardiovascular Electrophysiology 1999

Journal: :Journal of the American College of Cardiology 1983

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