ABSTRACT
This paper presents a survey of the experience gathered in the field of acute cholecystitis at the Sherbrooke University Hospital from 1969 to 1988. Diagnosis of acute cholecystitis in the absence of stone (according to histopathological criteria) was made in 26 cases. The relative number of such cases increased over the last 10 years of the study. Risk factors together with clinical and paraclinical data have been analyzed. Sonography is the diagnostic test of choice. Gall-bladder scanning is a useful adjuvant in cases of doubtful or negative sonography. Gangrene and/or perforation of the gall-bladder was reported in 57.7% of patients. Cholecystectomy was selectively performed in 23 of 24 cases when diagnosis was established in vivo. Cholecystectomy and percutaneous drainage are discussed.
Subject(s)
Cholecystitis/epidemiology , Adolescent , Adult , Aged , Aged, 80 and over , Cholecystectomy , Cholecystitis/diagnosis , Cholecystitis/surgery , Cholelithiasis , Female , Humans , Male , Middle Aged , Quebec/epidemiologyABSTRACT
To evaluate the effect of fluctuations in environment and body temperatures on preterm infants, we recorded these variables in very immature newborn infants (birth weight less than 1000 gm) cared for in double-walled incubators (Air-Shields model C-100 and Ohio model IC). Both incubators maintained environmental temperatures corresponding overall to the set point, despite incubator openings. Under skin temperature servocontrol, however, environmental temperature fluctuations were greater than 2 degrees C even in strictly controlled conditions. The pattern of incubator temperature fluctuations depended on the set point rather than on the type of incubator (conventionally heated or heated by warm air blown between the double walls). The long-term clinical significance of the incubator temperature variability remains to be determined; the choice between air and skin servocontrolling should depend in part on the need for environmental stability.
