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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Sarcoidosis
Report:Sinus tachycardia 118/min PR interval 0.20â Right axis deviation Alternating (2:1) right bundle branch block Nonspecific ST/T changes Possible lateral infarction ?age Comment: The tracing, of course, provides scant clues to its provenance.
Alternating LBBB
Report:Sinus rhythm 87/min Alternating (2:1) left bundle branch block Small frontal plane voltage Nonspecific T wave changes Comment:The patient was admitted to CCU because of chest pain; a new LBBB developed. However, when disseminated carcinoma beca
Alternating (2:1) Right Bundle Branch Block
Report: Sinus tachycardia 126/min Left anterior hemiblock Frontal plane axis â60o Alternating right bundle branch block Poor R wave progression Nonspecific ST/T changes Comment: The diagnosis depends, critically, on identical PR interval in all th
Alternating Left Anterior Hemiblock
Report:Sinus tachycardia 102/min Alternating LAD, probably LAHB Acute or recent anterior infarction Comment:The presenting symptoms of both angina and infarction are often atypical in women5. This patient had post-infarction angina at the time of this
Alternating Ventricular Tachycardia
Report: Ventricular tachycardia 136/min Alternating QRS morphology throughout Comment: This is a good example of how alternating and bidirectional tachycardia are basically the same. This one would be called bidirectional if only the negative axis in
Tachycardia with Complete & Incomplete LBBB
Report:Atrial flutter with 2:1 AV block. Alternating complete & incomplete LBBB. Primary T wave changes. Comment:This is another form of bidirectional tachycardia. It is also an example of double 2:1 block: one in the AV node (for atrial flutter) and a