Biomedical subjects

Y W Ahn

Publications and source records attributed to Y W Ahn.

7 recordsLinked to original sources

PubMed1998

Cigarette smoking as a risk factor for ectopic pregnancy.

OBJECTIVE: Our purpose was to assess the risk of ectopic pregnancy among women who smoke cigarettes. STUDY DESIGN: We used data from a case-control study of ectopic pregnancy conducted from October 1988 to August 1990 at an inner-city hospital in Georgia. Cases were 196 non-Hispanic black women with a surgically confirmed ectopic pregnancy. Controls were non-Hispanic black women who had delivered either a live or a stillborn infant weighing at least 500 gm (n = 882) or who were pregnant and seeking an induced abortion (n = 237). RESULTS: After we adjusted for parity, douching history, history of infertility, and age, the odds ratio for ectopic pregnancy was 1.9 (95% confidence interval 1.4 to 2.7) for women who smoked during the periconception period compared with women who did not smoke at that time. After stratification by the amount of daily smoking during the periconception period, the odds ratio rose from 1.6 (95% confidence interval 0.9 to 2.9) for women who smoked 1 to 5 cigarettes to 1.7 (95% confidence interval 1.1 to 2.8) for women who smoked 6 to 10 cigarettes to 2.3 (95% confidence interval 1.3 to 4.0) for women who smoked 11 to 20 cigarettes, and to 3.5 (95% confidence interval 1.4 to 8.6) for women who smoked >20 cigarettes per day. CONCLUSION: In this inner-city population, cigarette smoking was an independent, dose-related risk factor for ectopic pregnancy among black women. The public health and medical care communities should inform the public of this additional risk associated with cigarette smoking and intensify intervention strategies to reduce cigarette smoking among women of reproductive age.

Adolescent↗

PubMed1997

Vaginal douching and the risk of ectopic pregnancy among black women.

OBJECTIVE: Our goal was to determine whether vaginal douching was associated with ectopic pregnancy among black women and whether specific douching behaviors were associated with differences in risk. STUDY DESIGN: We analyzed data from a case-control study of ectopic pregnancy conducted between October 1988 and August 1990 at a major public hospital in Atlanta, Georgia. Case subjects were 197 black women with surgically confirmed ectopic pregnancies; the control group included 882 black women who were delivered of live or stillborn infants and 237 black women who were seeking to terminate a pregnancy. RESULTS: The adjusted odds ratio for ectopic pregnancy associated with ever having douched was 3.8 (95% confidence interval 1.6 to 8.9). The risk increased with increasing number of years of douching at least once per month. No douching behavior was found to be without risk; even women who douched for routine cleanliness were at increased risk of ectopic pregnancy. CONCLUSIONS: Vaginal douching is a modifiable behavior that may greatly increase a woman's risk of ectopic pregnancy.

Adolescent↗

PubMed1997

The relation between induced abortion and ectopic pregnancy.

OBJECTIVE: To determine whether having had one or more induced abortions increases a woman's risk of having an ectopic pregnancy. METHODS: We conducted a case-control study of all women admitted to a major metropolitan hospital in Georgia with a surgical diagnosis of ectopic pregnancy during the period of October 1988 to August 1990. Controls were randomly selected from women seeking an induced abortion or delivering an infant at the same hospital. After exclusions, this analysis included 182 cases and 1056 controls. Stratified analysis and unconditional logistic regression were used to control for confounding and to estimate the relative risks. RESULTS: Approximately 90% of cases and controls were non-Hispanic, black women; 34% of the cases and 36% of the controls reported a history of induced abortion. The crude odds ratio for having an ectopic pregnancy associated with a history of induced abortion was 0.9 (95% confidence interval 0.6, 1.3). The odds ratio remained the same after adjusting for selected confounding variables and stratifying by the number of induced abortions, gestational age at the time of abortion, place where the abortion was performed, and the woman's report of medical complications of the abortion. CONCLUSION: We found no evidence that having one or more induced abortions increases a woman's risk of having an ectopic pregnancy.

Abortion, Induced↗

PubMed1995

Laparoscopic silastic band sterilization failures.

Silastic band laparoscopic sterilization was introduced in the early 1970s as an alternative to unipolar cautery laparoscopy. Banding eliminates burn injury and reduces tubal destruction. However, in comparison with other methods, the success of Silastic banding may depend more on tubal morphology. This case-control study of 70 banding failures and 140 controls matched for age, gravidity, and date of procedure reveals that morphologic abnormalities of pelvic organs (adhesions or tubal thickening) or a history of a disease known to cause such abnormalities (pelvic inflammatory disease) increases the risk of sterilization failure. The risk of failure is further increased if the procedure is performed immediately postpartum or postabortion rather than as an interval procedure.

Age Factors↗

PubMed1980

First-trimester fetal chromosomal diagnosis using endocervical lavage: a negative evaluation.

A report in the literature indicated that fetal cells could be obtained by endocervical lavage during the first trimester of pregnancy and successfully cultured. This would allow prenatal diagnosis earlier in pregnancy than is currently possible with second-trimester amniocentesis. Therefore, we attempted to confirm these findings. Our results indicated that the cultural cells were maternal in origin. We disagree with interpretations of the data given in the initial report and conclude that first-trimester prenatal diagnosis is not feasible at this time.

Adolescent↗

PubMed1979

Techniques for laparoscopy on patients with previous abdominal surgery.

Many clinicans are hesitant to perform laparoscopy on patients with previous intra-abdominal surgery, because of increased risk of hemorrhage or intestinal perforation in the presence of abdominal adhesions. Experiences and techniques used in Grady Memorial Hospital to increase the safety of laparoscopic procedures performed on patients with extensive abdominal adhesions are discussed.

Female↗

PubMed1976

A comparison of subcutaneous and preperitoneal emphysema arising from gynecologic laparoscopic procedures.

Out of 1,300 cases of gynecologic laparoscopic procedures reviewed, three incidences of preperitoneal emphysema and several incidences of subcutaneous emphysema were noted. There were a few significant differences in the diagnosis and management of these two types of emphysema. In the medical literature reviewed by the author, preperitoneal emphysema has not been discussed while subcutaneous emphysema has received quite a lot of attention. Preperitoneal emphysema is defined as a collection of air or other gas which occurs in the tissue spaces between the abdominal fascia and the ventral peritoneum.

Adult↗