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Myocardial infarction

Prevalence
Clinical features
Differential diagnosis
Investigations
Therapy
Prevention
Prognosis
Clinical features

Look for Kussmaul's sign (JVP rising during quiet inspiration). c

Why?

  • It makes right ventricular infarction more likely in inferior MI. c

Inferior MI: Kussmaul's sign helps diagnose right ventricular failure

Patient Target Disorder and
Reference Standard		 Diagnostic Test LR+
(95% CI) 		Post-test Probability LR-
(95% CI) 		Post-test Probability
acute inferior myocardial infarction c (pre-test probability: 15%) right ventricular infarction
(atrial pressure) 		Kussmaul's sign infinity
(5.9 to infinity) 		100% 0.0
(0.0 to 0.73) 		0%

Expiry date: November 2003
Levels of Evidence used in grading these guides

Author   CM   Ball , N   Shenker
Reviewer   S   Straus
CAT Writers   CJ   Wotton , N   Shenker , B   Phillips , CM   Ball