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  • Title: [Society of Nephrology, Computer Technology Commission. Dialysis computer program. VI. - Survival and risk factors].
    Author: Degoulet P, Reach I, Rozenbaum W, Aime F, Devries C, Berger C, Rojas P, Jacobs C, Legrain M.
    Journal: J Urol Nephrol (Paris); 1979 Dec; 85(12):909-62. PubMed ID: 554877.
    Abstract:
    The sixth report of the "Diaphane Dialyse Informatique" Program concerns 2,518 adult patients (age 15 and over) treated by chronic hemodialysis or hemofiltration in 33 French dialysis centres between June 1972 and December 1978. 1) The number of centers participating to the program is progressively increasing. Overall duration of follow-up represents 4,192 patient-years, allowing precise evolutive studies of terminal renal failure treated by hemodialysis. 2) Mean age at start of treatment continues to increase. Among 709 patients who started treatment in 1977-1978, 8,8 p. 100 of men and 11 p. 100 of women were over 69 years old. 3) Patients with diabetic nephropathy represent 4,4 p. 100 of all patients dialyzed between 1972 and 1978 and 5,9 p. 100 of the patients starting treatment in 1977-1978. 4) The percentage of patients temporarily treated by peritoneal dialysis before hemodialysis decreases from 32,9 p. 100 in 1973-1974 to 15,9 p. 100 in 1977-1978. 5) In 1978, 65,3 p. 100 of patients are dialyzed 3 times a week with a mean weekly duration of 14,0 h for male and 12,9 for female. 73 p. 100 of the patients are dialyzed during the night. 6) Disposable parallel plate hemodialyzers (71,8 per cent of dialysis sessions in 1978) and hollow fiber hemodialyzers (11,6 per cent) progressively replace disposable coil dialyzers and non disposable Kiil dialyzers. 7) Transient hypotensive episodes during dialysis sessions remain the most frequent complications (21,7 per cent of sessions in 1978). Transient hypotensive episodes are more frequently observed with coils than with parallel plate hemodialyzers or with hollow fiber dialyzers. 8) Mean diastolic blood pressure (DBP) +/- SD is 101,9 +/- 21,7 mmHg at start of dialysis and 81,4 +/- 11,8 mmHg when dialysed. During the course of treatment 28,7 per cent of the patients receive long term antihypertensive treatment. In spite of dialysis and antihypertensive treatments 11 per cent of all patients followed up maintain DBP greater than or equal to 95 mmHg. 9) Viral hepatitis remain the most prominent infectious problem with 30 per cent of patients being chronic Hbs antigen carriers. 10) Annual death rate calculated in the 2,518 patients dialyzed between 1972 and 1978 (78/1000) is 12 times superior to the death rate of the French population, adjusted for sex and age to the dialysis population. 43,1 per cent of deaths are of cardiovascular origin. Risk factors for overall mortality are age, sex (male), existence of a vascular or diabetic nephropathy, twice weekly dialysis strategy, elevation of systolic or diastolic blood pressure during the course of dialysis treatment, hypocholesterolemia and to a lesser extent hypotriglyceridemia. On the contrary, hypercholesterolemia, hypertriglyceridemia and hyperuricemia do not appear as risk factors for overall mortality or cardiovascular mortality. These results plead for a perfect control of hypertension and to the extension of thrice weekly dialysis for the whole population of patients treated by maintenance hemodialysis.
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