haemodialysis in many countries [7]. This reduction in Rise and fall of home haemodialysis home haemodialysis has been attributed to the increased age and co-morbidity of patients now comHome haemodialysis has been utilized successfully in mencing long-term dialysis, but the number of low risk the treatment of end-stage renal failure (ESRF ) since patients beginning dialysis, who would have bee...

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T he first successful heart valve replacements were carried out in 1960 with the use of mechanical prostheses.1-3 Because of the risk of throm-boembolism that is inherent to all mechanical prosthe-ses and the hazards of continuous anticoagulation, fewer thrombogenic tissue valves were developed.4,5 In the early 1960s, homograft replacement of the aortic valve was reported,6'7 and shortly therea...