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  • Title: [Left ventricular insufficiency: systolic versus diastolic dysfunction].
    Author: Federmann M, Risti B, Hess OM.
    Journal: Schweiz Med Wochenschr; 1994 Jul 02; 124(26):1196-202. PubMed ID: 8047867.
    Abstract:
    Left ventricular failure has been subdivided into different forms. Systolic pump failure (= systolic dysfunction) and diastolic filling failure (= diastolic dysfunction) are important entities in the overall framework of heart failure. The clinical patterns of both are presented in light of 2 case reports: systolic dysfunction involves the combination of left ventricular failure, cardiomegaly and depressed systolic ejection fraction. Diastolic dysfunction is accompanied by pulmonary congestion in the presence of a normal or only slightly enlarged ventricle and a normal ejection fraction. Prognosis of systolic dysfunction is poor, with a 5-year survival rate of 40%, compared to 70% in patients with isolated diastolic dysfunction. Medical treatment of systolic dysfunction is based primarily on ACE-inhibitors followed by diuretics and digitalis. Betablockers in low doses and spironolactone can provide additional benefit. Calcium channel blockers are rarely indicated, due to their negative inotropic effects. In patients with diastolic dysfunction, however, they are the first choice because of their positive lusitropic effect on relaxation and ventricular filling. ACE-inhibitors are suitable in hypertensive heart disease, while diuretics and betablockers are second line drugs. Digitalis should be avoided since worsening of diastolic function may occur.
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