Vomiting, hyperkalaemia and cardiac rhythm disturbances

Vomiting, hyperkalaemia and cardiac rhythm disturbances.

A 51-year-old man presented with profuse vomiting and epigastric discomfort. The patient was known to suffer from a bipolar affective disorder with previous hospitalization for psychotic depression and attempted suicide. An ECG tracing showed normal sinus rhythm, inverted T waves in leads II, III and AVF and depressed ST segments in V4–V6 (Figure 1). Laboratory investigations revealed a serum p...

Propranolol (inderal) in Disturbances of Cardiac Rhythm.

Echocardiographic evaluation of disturbances of cardiac rhythm and conduction.

he effects upon mechanical ventricular perforTxn, of disturbances of cardiac rhythm and oonduction have long been a topic of intense interest to cardiovascular investigators. Nevertheless, the precise mechanical consequences of many electrophysiologic disorders remain uncertain. Recently, echocardiography has provided a noninvasive diagnostic method capable of examination of intracardiac anatom...

Chlorpromazine therapy, and associated acute disturbances of cardiac rhythm.

Both clinical observation and experimental animal studies have shown that chlorpromazine can produce disturbance of normal cardiac rhythm. Atrioventricular and intraventricular conduction defects have been demonstrated, as have various types of tachyarrhythmias, but there have been no reports of complete heart block, associated with the previous presence of right bundle-branch block and left an...

Reflex disturbances of cardiac rhythm during ophthalmic surgery.

Cardiac rhythm was monitored in 219 patients who had ocular operations under general anaesthesia and in 15 patients who had cataract surgery under local analgesia. Of these, 140 were children having squint surgery. The high incidence of the oculo-cardiac reflex and the adequate protective effect of atropine 0-01 mg/kg given intravenously was confirmed. Isolated extrasystoles were common, partic...