Herz
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For nitrates their efficacy in acute and chronic heart failure has to be differentiated. In acute heart failure the hemodynamic and symptomatic improvements after administration of short term nitrate therapy render this form of therapy a standard medication. ⋯ On the contrary, nitrates in chronic heart failure tend to increase the sympathetic tone which is negatively correlated to survival. Thus, nitrates are only adjunctive therapy in patients with chronic heart failure.
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Between 1975 and 1991, 5 patients were operated for traumatic tricuspid insufficiency. The patients, all male, with the age at surgery of 15 to 61 years (mean 39 years), suffered previous nonpenetrating trauma to the chest 0.1 to 23 years (mean 13.2 years) earlier. Symptoms were known for 0 to 18 years (mean 10.5 years). ⋯ One patient died early, 2 patients died late during a total follow-up of 35.3 years after 7 and 9 years, 2 patients are alive 9 and 10 years after the operation and are presently in New York Heart Association class II to III and I. Traumatic tricuspid insufficiency is a rare event, but is not infrequently overlooked for a long period of time inspite of present symptoms. Results after operative correction seem to be comparable with the results in patients following tricuspid repair or replacement for functional and organic lesions.
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Mitral and particularly aortic valve replacements may be complicated by heavy calcification of the anulus, markedly impairing proper valve seating. From 1987 to 1996, we have used ultrasonic energy with the CUSA-device in valvular replacement to debride the aortic anulus in 90 patients and the mitral anulus in 2 patients. Annular debridement using ultrasonic decalcification is superior to other methods of debridement because it is safer, more thorough, and affords improved seating of the valve. ⋯ The operative mortality in our series was 1/92 (1.1%). Other than the fatality, the incidence of permanent stroke was 0%. Ultrasonic debridement to remodel the aortic and mitral valve anulus has been an invaluable adjunct in the heavily calcified anulus.