NDT Advance Access published online on October 28, 2006
Nephrology Dialysis Transplantation, doi:10.1093/ndt/gfl627
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1 Terapia Intensiva, Dipartimento di Clinica Medica, Nefrologia & Scienze della Prevenzione, Università degli Studi di Parma, Parma, Italy
* To whom correspondence should be addressed. Background. Prostacyclin is an easy-to-use and safe antihaemostatic drug for continuous renal replacement therapies (RRTs). No study has been performed so far about its use in critically ill patients with acute renal failure (ARF) treated with sustained low-efficiency dialysis (SLED), a hybrid modality between conventional intermittent and continuous RRTs. Methods. We studied 35 consecutive ICU patients with ARF, in whom data on safety and efficacy were prospectively collected in a single-centre experience over 15 months since August 2001. There were 25 males and 10 females; mean age, 72.1 (SD 11.4); mean APACHE II score at ICU admission, 24 (range 14-43); at RRT start, 27.4 (20-43); 28 patients (80%) were on mechanical ventilation and 17 (48.6%) had sepsis. SLED was performed using a conventional dialysis machine, with blood flow at 200 ml/min, bicarbonate-based ultrapure dialysate running at 100 ml/min, dialysate temperature 35°C and low-flux polysulfone filters. Prostacyclin, under the form of its synthetic analogue epoprostenol, was infused at 6 ng/kg/min before the filter. Results. Out of 185 daily sessions performed (8-10 h, median 4 per patient, range 1-19), 19 (in 11 patients) were prematurely interrupted (10.3%; 95% CI: 5.4-18.6), after an average 58.5% of the prescribed treatment time (nine sessions in six points for circuit clotting). This finding compared favourably with the experience we had at our unit using SLED with saline flushes. With the use of prostacyclin, two episodes of upper gastrointestinal bleeding were observed in 2/35 patients during SLED (5.7%; 95% CI: 0.7-19.2), corresponding to 1.1 episodes per 100 person-day on SLED. Therapeutic intervention for hypotension (fluids and/or vasopressor increase) was required in 45/185 (in 20 patients) of the sessions monitored (24.3%; 95% CI: 17.4-32.9); two sessions had to be interrupted because of refractory hypotension. Urea reduction ratio was 0.50 (SD 0.12); mean prescribed and obtained net ultrafiltration were 1.96 l (range 0.5-5.0) and 1.99 l (0.5-5.0), respectively. In-hospital mortality was 46%; mortality predicted by the APACHE II model at ICU admission was 42%; at SLED start, 51%. Conclusions. Prostacyclin is a safe and effective antihaemostatic agent for SLED. Presented in part at the American Society of Nephrology Meeting, 30 October-2 November, Philadelphia, USA, J Am Soc Nephrol 2002; 13: 605A
Received February 8, 2006
Accepted September 29, 2006
Original Article
Sustained low-efficiency dialysis (SLED) with prostacyclin in critically ill patients with acute renal failure
Enrico Fiaccadori 1 *, Umberto Maggiore 1, Elisabetta Parenti 1, Roberto Giacosa 1, Edoardo Picetti 1, Carlo Rotelli 1, Dante Tagliavini 1, and Aderville Cabassi 1
Enrico Fiaccadori, E-mail: enrico.fiaccadori{at}unipr.it
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