منابع مشابه
Lead aVR--the neglected lead.
The aVR is often neglected lead. It is an unipolar lead facing the right superior surface. As all the depolarisations are going away from lead aVR, all waves are negative in aVR (P, QRS, T) in normal sinus rhythm. In dextrocardia, (True and technical) the p is upright in aVR. The lead aVR is a very important lead in localisation of Coronary Artery Disease. In the presence of anterior ST elevati...
متن کاملElectrocardiographic applications of lead aVR.
Lead aVR, 1 of 12 electrocardiographic leads, is frequently ignored in clinical medicine. In fact, many clinicians refer to the 12-lead electrocardiogram (ECG) as the 11-lead ECG, noting the commonly held belief that lead aVR rarely offers clinically useful information. In this report, we discuss the findings in lead aVR, which are potentially of value, including ST-segment elevation in the pat...
متن کاملLead aVR, a mostly ignored but very valuable lead in clinical electrocardiography.
In this issue of the Journal, Yamaji et al. (1) report on the use of lead aVR in the diagnosis of acute left main coronary artery (LMCA) obstruction. More specifically, the investigators compare the behavior of the ST-segment in lead aVR with lead V1 in that situation. They report that in LMCA occlusion, more ST-segment elevation is present in lead aVR compared to lead V1. They also found a rel...
متن کاملThe prognostic value of T wave amplitude in lead aVR in males.
BACKGROUND Since there is an uncertainty regarding which of the 12 leads provides the most information, we investigated the association between repolarization phenomenon in all of the 12 leads and cardiovascular (CV) mortality. METHODS Retrospective cohort study was performed at Palo Alto Veterans Affairs Medical Center, Palo Alto, California, which included 24,270 consecutive male veterans w...
متن کاملPrevalence and Associated Clinical Characteristics of Exercise-Induced ST-Segment Elevation in Lead aVR
BACKGROUND Exercise-induced ST-segment elevation (STE) in lead aVR may be an important indicator of prognostically important coronary artery disease (CAD). However, the prevalence and associated clinical features of exercise-induced STE in lead aVR among consecutive patients referred for exercise stress electrocardiography (ExECG) is unknown. METHODS All consecutive patients receiving a Bruce...
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ژورنال
عنوان ژورنال: Annals of Noninvasive Electrocardiology
سال: 2011
ISSN: 1082-720X
DOI: 10.1111/j.1542-474x.2011.00435.x