Left bundle branch block (LBBB) in acute myocardial infarction: the Sgarbossa criteria
Left bundle branch block (LBBB) in acute myocardial infarction (AMI): clinical implications & Sgarbossa criteria On the contrary to right bundle branch block , left bundle branch block is always a pathological finding which affects cardiovascular and total mortality. Left bundle branch block is more common in individuals with structural and ischemic heart disease . Assessment of ischemia on ECG is difficult in the presence of left bundle branch block. This is because left bundle branch block causes substantial changes in left ventricular de- and repolarization, which result in (secondary) ST-T changes. Such ST-T changes may imitate and/or mask ischemia. Imitation of ischemia manifests as ST segment elevations in leads V1–V2 accompanied by ST segment depressions in lead V5, V6, I and aVL. Clinicians frequently confuse these elevations and depressions with those caused by STEMI (STE-ACS) . Indeed, several studies have shown that the majority of patients inappropriately referred to the c…
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Cuộc đời thì ngắn, mà nghề thì miên man;cơn bệnh phập phù;kinh nghiệm hiểm nguy, còn quyết định thì thật khó.Người thầy thuốc không phải chỉ chuẩn bị để tự mình làm đúng, mà còn khiến cho bệnh nhân, người đi theo và các yếu tố xung quanh hợp tác hài…