Fig. 2. Probability of long-term survival (with a 6-yr follow-up) of patients with and without organ failure. Hemodynamic instability (A ), prolonged mechanical ventilation more than 24 h (B ), or renal failure (C ) are shown. The occurrence of organ failure as defined in our study had a marked impact on long-term survival. H.I. = hemodynamic instability; R.F. = renal failure.