Usefulness of Dialysate Fibrin Degradation Products and Lactic Dehydrogenase Isoenzyme Patterns in Assessing the Clinical Course of Peritonitis

Abstract

To establish the usefulness of fibrin degradation products (FDP) and lactic dehydrogenase isoenzyme patterns (LDH isoenzyme) in assessing the clinical course of peritonitis. A retrospective study of patients with peritonitis who were divided into three groups according to their clinical course. Single dialysis unit of a general hospital. Patients were treated by intraperitoneal and oral antibiotics. Twenty-six patients with 34 episodes of peritonitis were studied. Group 1 consisted of 21 patients with 26 recoveries from peritonitis; Group 2 consisted of 5 patients with 5 relapsing episodes of peritonitis, and Group 3 consisted of 3 patients with 3 persistent episodes of peritonitis. Concentrations of WBCs, FDP, LDH isoenzyme and microbiological culture of the dialysate were determined. In most of Group 1, WBCs, FDP, and LDH isoenzyme returned to normal within 2 weeks. In 4 patients of Group 1, who had complications (diverticulitis, cholecystitis, cystitis, and tunnel infection), WBCs, FDP, and LDH isoenzyme returned to normal gradually within 3 weeks. In Group 2, WBCs returned to normal, but FDP remained relatively high and LDH isoenzyme did not normalize. In Group 3, WBCs, FDP and LDH isoenzyme did not normalize. Failure of normalization of FDP and LDH isoenzyme suggests an incomplete recovery from peritonitis. FDP and LDH isoenzyme are useful in assessing the course of peritonitis.