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Biomedical subjects

N G Courey

Publications and source records attributed to N G Courey.

At least 19 recordsLinked to original sources
PubMed2001

Risk factors for uterine fibroids among women undergoing tubal sterilization.

Uterine leiomyomas are reported to be the most common benign gynecologic tumors affecting premenopausal women, and they are often associated with considerable morbidity. The purpose of this study was to identify risk factors for uterine fibroids among women undergoing tubal sterilization. Cases comprised women aged 17-44 years whose uterine fibroids were first visualized at the time of tubal sterilization (1978-1979 or 1985-1987) or who reported a history of uterine fibroids (n = 317). Controls were randomly selected from women with no laparoscopic evidence of or history of fibroids (n = 1,268). Adjusted odds ratios were estimated using unconditional logistic regression separately for White (n = 1,235) and African-American (n = 350) women. Risk factors for White women included: age 40-44 years (odds ratio (OR) = 6.3; 95% confidence interval (CI): 3.5, 11.6), > or =5 years since last delivery (OR = 1.9; 95% CI: 1.1, 3.1), lifetime cigarette smoking of > or =1 pack/day (OR = 1.6; 95% CI: 1.1, 2.3), menstrual cycle length of >30 days (OR = 1.6; 95% CI: 1.1, 3.3), and menstrual bleeding for > or =6 days (OR = 1.4; 95% CI: 1.0, 2.0). Parous women were at reduced risk compared with nulliparous women (OR = 0.2; 95% CI: 0.1, 0.3). Advancing age was the only significant risk factor for African-American women (ages 40-44 years, OR = 27.5; 95% CI: 5.6, 83.6). Current oral contraceptive use and elective abortion were not associated with fibroids.

Adolescent↗
PubMed1983

Laparoscopic findings in patients with pelvic pain.

We have reviewed 1,194 charts of consecutive patients who had a diagnostic laparoscopy for pelvic pain from January 1, 1972, to December 31, 1980, at the Deaconess Division of the Buffalo General Hospital. A total of 749 of these patients had normal pelvic examinations prior to the diagnostic laparoscopy; 479 (63%) had abnormal findings on diagnostic laparoscopy. Of the 445 patients with abnormal pelvic examinations, 78 (17.5%) had normal findings on diagnostic laparoscopy. The laparoscopic findings and ovarian pathology are reviewed. These results are substantiated by other reports in the literature and certainly justify the increasing use of the laparoscope as a diagnostic tool in the gynecologist's armamentarium.

Adolescent↗
PubMed1980

Complications of laparoscopic tubal sterilization.

The experience of laparoscopic sterilization in 5018 cases at the Deaconess Division of Buffalo General Hospital over a period of 8.5 years is presented. The procedure was completed in 4992 cases, with a complication rate of less than 1% and with no operative mortality. One half of the patients with complications required a laparotomy. Bleeding was the most common complication; it accounted for exactly one half the complications. The laparotomy rate for all complications was 4.6 per 1000 cases. Seven ectopic and 4 intrauterine pregnancies occurred after this procedure, for a method failure rate of 2.2 per 1000 cases. Recommendations for prevention and management of complications are presented.

Adult↗
PubMed1977

Progestational agents and blood coagulation. VIII. Effect of low-dose, alternate-day, estrogen-progestin combinations on blood coagulation factors in man, with a special note on the effect of freezing of blood samples.

Changes in the blood coagulation system were studied in three groups of 20 patients each. The first group received 0.5 mg. of norethindrone daily, plus 0.06 mg. of ethinyl estradiol on alternate days from cycle Day 5 through 25. The second group, all of whom had been fitted with an intrauterine contraceptive device (IUD), received no hormonal treatment and served as a control group. The third group received 0.5 mg. of norethindrone daily, combined with 0.045 mg. of ethinyl estradiol given on alternate days from cycle Day 5 through 25. Blood samples were drawn prior to the initiation of the study and after three months of treatment. Tests of the following parameters of the blood coagulation system were performed: direct platelet count; platelet adhesiveness; prothrombin time; thrombin time; fibrinogen; factor II assay; activity of factors V, VII, VIII, IX, and X; antithrombin III; and fibrin/fibrinogen degradation products. For a number of these factors, both fresh and frozen blood samples were examined. It was concluded that the two treatment regimens, with the use of alternate-day estrogen administration over a three-month period, had no clinically significant effect on the blood coagulation system.

Adolescent↗
PubMed1977

Prevention of hyaline membrane disease with plasminogen. A cooperative study.

In a double-blind, randomized study, 500 premature infants were treated with plasminogen or placebo intravenously within 60 minutes of birth. There was a substantial decrease in severe clinical respiratory distress, death caused by hyaline membrane disease, and total mortality in the plasminogen-treated infants as compared to the controls.

Clinical Trials as Topic↗
PubMed1976

Progestational agents and blood coagulation. VII. Thromboembolic and other complications of oral contraceptive therapy in relationship to pretreatment levels of blood coagulation factors: summary report of a ten-year study.

During a ten-year period, 348 women were studied for a total of 5,877 patient months in four separate studies relating oral contraceptives to changes in hematologic parameters. Significant increases in certain factors of the blood coagulation and fibrinolysin systems (factors I,II,VII,VIII,IX, and X and plasminogen) were observed in the treated groups. Severe complications developed in four patients. All four had an abnormal blood coagulation profile, suggesting "hypercoagulability" before initiation of therapy. Some of these findings represented the most extreme abnormalities seen in the entire group of patients; some increased further during therapy. One of these patients developed a myocardial infarction before receiving any medication, shortly after the base-line values were obtained. One patient developed retinopathy 19 months after she began therapy, and another developed thrombophlebitis after 27 months of therapy. The fourth patient developed thrombophlebitis 14 days after initiation of contraceptive therapy. All four patients were of the A or AB blood group. Previous studies suggested the possiblility of increased propensity for thromboembolic episodes in patients possessing the A antigen. It appears from these data that hematologic work-ups may be useful in women who are about to start long-term oral contraceptive therapy.

Adult↗
PubMed1975

Studies on the prevention of respiratory distress syndrome of infants due to hyaline membrane disease with plasminogen.

Hyaline membrane disease (HMD) is leading single cause of death of newborn, premature infants. The "hyaline membranes" consist chiefly of fibrin. The clinical manifestation of HMD is the respiratory distress syndrome (RDS). Infants with RDS were treated with urokinase-activated human plasmin in a previous clinical trial. Survival rate was increased in the plasmin treated group as compared to the placebo recipients. However, cost and difficulty in the preparation of the enzyme made this treatment impractical. We, as well as others, have shown the premature infants lack serum plasminogen; thus they are unable to develop effective fibrinolysis and are defenseless against pulmonary fibrin deposition. Therefore, plamsinogen was tested as a possible preventive agent in RDS due to HMD. In a double blind, randomized study, infants between 1 and 2.5 kg birth weight received plasminogen or placebo shortly after birth, and were then followed for development of RDS. After 100 infants were entered into the study, the code was broken and results were evaluated to assure safety of the procedure. Among the 100 infants, 51 received placebo, 49 received plasminogen. Among the infants who received placebo, seven developed mild, and ten developed severe respiratory distress; of these ten, five died with histopathologically documented HMD. Two infants died from causes other than HMD. Among the 49 infants treated with plasminogen, 13 developed mild and three developed severe respiratory distress. There was no death due to HMD. Two deaths were due to other causes. Factors placing the infant at risk from HMD (degree of prematurity, sex, cesarean section, bleeding episodes during pregnancy, maternal diabetes) were found to be evenly distributed between control and treated groups. Since completing the first phase of the study, data of an additional 277 infants has become available. Although the code was not broken in this series, a preliminary look at mortality data in comparison with mortality data of the first series of 100 (in which the code was broken) suggests that preventive activity of plasminogen has been maintained in the second phase of the study.

Birth Weight↗
PubMed1975

Thromboembolic complications of oral contraceptive therapy.

During a ten-year period, 348 women were studied for a total of 5877 patient months for changes in hematologic parameters induced by oral contraceptives. Significant increases were observed in Factors I, II, VII, VIII, IX, X and plasminogen. Severe complications developed in four patients. All four had an abnormal blood coagulation profile, suggesting "hypercoagulability" before initiation of therapy. All four patients were of A or AB blood group. It appears from these data that hematologic workups may be useful in women who are about to embark on long-term oral contraceptive therapy.

Blood Cell Count↗