ABSTRACT
3000 routine ECGs were screened during a 2 year period in Armed Forces personnel reporting for annual medical examination. 90 asymptomatic men with minor ST segment and T wave changes at rest were assessed by exercise ECG. 33 responded abnormally. They were subjected to coronary arteriography. 14 subjects were confirmed to have coronary artery disease (CAD). 19 subjects had a false positive response and assuming a false negative response of 2%, a sensitivity of 87.5%, specificity of 74.3% and a positive predictive value of 42.4% is obtained for exercise ECG. A positive predictive value of 15.5% is obtained for the resting ECG.
Subject(s)
Adult , Arrhythmias, Cardiac/diagnosis , Coronary Angiography , Coronary Disease/diagnosis , Electrocardiography , Exercise Test , Humans , India , Male , Mass Screening , Middle Aged , Military Personnel , Myocardial Ischemia/diagnosis , Reference ValuesSubject(s)
Adult , Diazepam/therapeutic use , Fasciculation/diagnosis , Humans , Male , Myotonia/diagnosis , Quinine/therapeutic useABSTRACT
Poisoning due to barium carbonate (rat poison) resulting in areflexic quadriplegia and respiratory muscle paresis in a young patient is described. The various effects of barium salts on the human body and their treatment are highlighted.