[Clinico-statistical study on pyometra in high-aged outpatients].

We clinico-statistically studied outpatients with pyometra aged 60 or older who visited our outpatient clinic during the past four years. 1. Pyometra was diagnosed in 48 cases (13.6%) of 353 in which the uterine cavity could be examined. The incidence became significantly higher with age (p less than 0.01). 2. Thirty-two patients with pyometra were found to require a wheelchair or to be in an immobilized state (bedridden). These patients with poor activity in daily living amounted to 76.2% of 42 cases which were not a complication of malignant uterine tumor or tuberculous endometritis. 3. Pyometra was diagnosed in 29 patients of 96 with urinary and/or rectal incontinence (30.2%). This incidence was significantly higher than that in our patients without incontinence (5.5%) (p less than 0.01). 4. Hematological and blood chemistry study revealed abnormality of the peripheral leucocyte count in 34.5% and CRP abnormality in 70.4% of all the cases of pyometra. 5. Mixed infection by both aerobic and anaerobic bacteria was observed in 16 cases of 36 in which strain could be determined by pus culture. Streptococcus sp. and Bacteroides sp. were predominant as aerobic and anaerobic bacteria, respectively. The present study on pyometra cases of aged people demonstrated that poor activity in daily living and incontinence were significant factors causing this disease. It also revealed the various features of pyometra in aged people.