[Microbial analysis of clinical material taken from patients at the Oncology Center, Maria Sklodowkda-Curie Institute in Warsaw in 1997]. / Mikrobiologiczna analiza materialu klinicznego pobranego od pacjentów Centrum Onkologii--Instytutu im. Marii Sklodowskiej-Curie w Warszawie w 1997 roku.

An analysis was carried out of the microbiological investigations of clinical material samples obtained from the patients of two oncology centres belonging to the Warsaw Oncology Centre. Microorganisms cultured from urine, blood, catheters, smears of wounds and other materials were analysed. From 4839 clinical material samples from the Ursynów centre 1755 bacterial strains were isolated. From 423 samples from the centre in Wawelska Street 171 strains were obtained. In infections of patients from the centres the number of Gram-positive cocci was twice that of Gram-negative rods. In the investigated clinical material S. aureus was the most frequently isolated Gram-positive coccus, while E. coli was the most frequent species among Gram-negative bacteria. In the infections of oncological patients a considerable frequency was noted of yeast-like fungi, especially C. albicans. Particularly disquieting was the increasing number of isolates of C. glabrata and C. krusei strains resistant to fluconazole.

[Selection of the optimal method of evaluation of peritonitis risk in patients treated by standard peritoneal dialysis]. / Wybór optymalnej metody oceny zagrozenia zapaleniem otrzewnej u chorych leczonych standardowa dializa otrzewnowa.

In order to find the optimal method of detecting the impending risk of peritonitis in patients on chronic standard peritoneal dialysis the authors evaluate the following: peritoneal fluid leucocytes total and differential counts (in the samples taken before the first morning infusion of the dialysis fluid into the peritoneal cavity as well as in the first change of the fluid), cultures from the peritoneal fluid and blood CRP before the start of the dialysis. A group of 8 patients was studied. Clinical signs of peritonitis occurred on 6 occasions during the total of 192 dialysis performed. In all those cases the differential count leucocytes was abnormal (more than 50% ofpolynuclear cells) as well in the peritoneal fluid obtained before the start of dialysis as in the first portion of the dialysis fluid. A high percentage (78%) of the false positive results of the total leucocyte count in the pre-dialysis fluid and in the first change of dialysis fluid (29%) as well of the blood CRP (25%) seem to, indicate a low practical value of those methods. The differential count of leucocytes of the sediment of the peritoneal fluid seems to be the optimal method of early detection of the impending peritonitis.