It is the object of this paper to investigate the modifications of the electrocardiographic pattern of cardiac infarction caused by the simultaneous presence of right bundle branch block, and to describe the cardiographic signs on which the diagnosis of infarction can be made in the presence. of right branch block. The cardiogram of right branch block shows added changes characteristic of infar...

概要 上室 性刺激 に伴 う心室 内変行伝導 の結果生 じる脚 ブ ロックは,一 般には生理的 なものであ り機 能的脚 ブロ ック(FBBB)1)~3)と いわれ る、 今回 このFBBBの 極形 である完全脚 ブロック(BBB)出 現 につ き50例 の正當PQ,正 QRS波 形例 を対 象 とし,心 房早期刺激法 と ヒス束心電図a)を使用 し検 討 し た.BBB出 現は50例 中31例(62%)に み られた.内 訳は右脚 ブロック(RBBB)21例,異 常 左軸 偏位 を伴 つた右 脚 ブロッ ク(RBBB+LAH)3例,異 常右軸 偏位 を伴つた右脚 ブロック(RBBB+LPH) 2例,左 脚 プロ ヅク(LBBB)3例, RBBB, LBBBの 両型 出現が2例 にみられ た, BBB出 現 の基 本条 件 としては よ り長 い心周期 の存 在,上 室性期外収縮(P...

OBJECTIVE Compare in-hospital outcome in patients with ST-elevation myocardial infarction with right versus left bundle branch block. METHODS RENASICA II, a national Mexican registry enrolled 8098 patients with final diagnosis of acute coronary syndrome secondary to ischemic heart disease. In 4555 STEMI patients, 545 had bundle branch block, 318 (58.3%) with right and 225 patients with left (...

OBJECTIVE To compare the different effects of right ventricular pacing and classic left bundle branch block on left ventricular function. DESIGN Retrospective and prospective study of 48 patients by electrocardiography, and M mode, cross sectional, and Doppler echocardiography. SETTING A tertiary cardiac referral centre. PATIENTS 48 patients (age range 21 to 89 years, 15 women), 24 with a...

Lyme disease may present with a variety of cardiac manifestations ranging from first degree to third degree heart block. Cardiac involvement with Lyme disease may be asymptomatic, or symptomatic. Atrioventrical conduction abnormalities are the most common manifestation of Lyme carditis. Less common, are alternating right bundle branch block (RBBB) and left bundle branch block (LBBB). We present...

Multipoint 1 recording apparatus has been used to study the pattern of ventricular excitation in experimental bundle-branch block. After block, the wave of activation spreads uniformly from the contralateral ventricle across the septum to the free wall of the homolateral ventricle. Septal activation consumes more time than in the normal. Changes occur in the site and extent of early endocardia!...

Atrial fibrillation is one of the most frequent arrhythmias diagnosed in clinical practice and it is also relatively common in dialysis patients. Atrioventricular and intraventricular conduction disturbances are less investigated in hemodialysis patients and data about their prevalence are insufficient. The objective of this study was to determine the prevalence of atrial fibrillation, atrioven...