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Biomedical subjects

Eleanor A Drey

Publications and source records attributed to Eleanor A Drey.

9 recordsLinked to original sources
PubMed2006

Contraceptive intentions among adolescents after abortion.

Changes between choice of contraceptive methods before abortion and contraceptive intentions after abortion were assessed among 482 adolescents with regards to efficacy to prevent pregnancy or sexually transmitted diseases (STD) and human immunodeficiency virus (HIV). Adolescents substantially increased their intention to use oral contraceptives (214 of 452 who did not use before intended to after; p < .001) and depot-medroxyprogesterone acetate (DMPA) (121 of 469 who did not use before chose to after; p < .001). None of the 134 adolescents who used condoms as their primary contraceptive method before abortion intended to continue afterwards (p < .001). There was no difference in intention to use condoms after abortion among adolescents who received voluntary HIV counseling and testing compared to those who did not. Twenty-two percent of adolescents intended to use condoms together with spermicidal foam as their primary contraceptive method after abortion, thereby combining contraceptive efficacy with STD prevention. The intention to preferentially adopt hormonal methods as the primary contraceptive, especially among adolescents counseled and tested for HIV, is discouraging for STD and HIV prevention efforts in this adolescent population.

Abortion, Induced↗
PubMed2006

Risk factors associated with presenting for abortion in the second trimester.

OBJECTIVE: To determine factors associated with delay of induced abortion into the second trimester of pregnancy. METHODS: Using audio computer-assisted self-interviewing, 398 women from 5 to 23 weeks of gestation at an urban hospital described steps and reasons that could have led to a delayed abortion. Multivariable logistic regression identified independent contributors to delay. RESULTS: Half of the 70-day difference between the average gestational durations in first- and second-trimester abortions is due to later suspicion of pregnancy and administration of a pregnancy test. Delays in suspecting and testing for pregnancy cumulatively caused 58% of second-trimester patients to miss the opportunity to have a first-trimester abortion. Women presenting in the second trimester experienced more delaying factors (3.2 versus 2.0, P < .001), with logistical delays occurring more frequently for these women (63.3% versus 30.4%, P < .001). Factors associated with second-trimester abortion in logistic regression were prior second-trimester abortion, delay in obtaining state insurance, difficulty locating a provider, initial referral elsewhere, and uncertainty about last menstrual period. Factors associated with decreased likelihood of second-trimester abortion were presence of nausea or vomiting, prior abortion, and contraception use. CONCLUSION: Abortion delay results from myriad factors, many of them logistical, such as inappropriate or delayed referrals and delays in obtaining public insurance. Public health interventions could promote earlier recognition of pregnancy, more timely referrals, more easily obtainable public funding, and improved abortion access for indigent women. However, accessible second-trimester abortion services will remain necessary for the women who present late due to delayed recognition of and testing for pregnancy. LEVEL OF EVIDENCE: II-2.

Abortion, Induced↗
PubMed2005

Fetal pain: a systematic multidisciplinary review of the evidence.

CONTEXT: Proposed federal legislation would require physicians to inform women seeking abortions at 20 or more weeks after fertilization that the fetus feels pain and to offer anesthesia administered directly to the fetus. This article examines whether a fetus feels pain and if so, whether safe and effective techniques exist for providing direct fetal anesthesia or analgesia in the context of therapeutic procedures or abortion. EVIDENCE ACQUISITION: Systematic search of PubMed for English-language articles focusing on human studies related to fetal pain, anesthesia, and analgesia. Included articles studied fetuses of less than 30 weeks' gestational age or specifically addressed fetal pain perception or nociception. Articles were reviewed for additional references. The search was performed without date limitations and was current as of June 6, 2005. EVIDENCE SYNTHESIS: Pain perception requires conscious recognition or awareness of a noxious stimulus. Neither withdrawal reflexes nor hormonal stress responses to invasive procedures prove the existence of fetal pain, because they can be elicited by nonpainful stimuli and occur without conscious cortical processing. Fetal awareness of noxious stimuli requires functional thalamocortical connections. Thalamocortical fibers begin appearing between 23 to 30 weeks' gestational age, while electroencephalography suggests the capacity for functional pain perception in preterm neonates probably does not exist before 29 or 30 weeks. For fetal surgery, women may receive general anesthesia and/or analgesics intended for placental transfer, and parenteral opioids may be administered to the fetus under direct or sonographic visualization. In these circumstances, administration of anesthesia and analgesia serves purposes unrelated to reduction of fetal pain, including inhibition of fetal movement, prevention of fetal hormonal stress responses, and induction of uterine atony. CONCLUSIONS: Evidence regarding the capacity for fetal pain is limited but indicates that fetal perception of pain is unlikely before the third trimester. Little or no evidence addresses the effectiveness of direct fetal anesthetic or analgesic techniques. Similarly, limited or no data exist on the safety of such techniques for pregnant women in the context of abortion. Anesthetic techniques currently used during fetal surgery are not directly applicable to abortion procedures.

Abortion, Induced↗
PubMed2005

Abortion attitudes of pregnant women in prenatal care.

OBJECTIVE: This study was undertaken to describe abortion attitudes in a diverse cohort of pregnant women enrolled in prenatal care. STUDY DESIGN: A cross-sectional interview study of 1082 demographically diverse gravid women enrolled in prenatal care at less than 20 weeks' gestation was performed. RESULTS: Most participants (92%) supported abortion availability. Half (50%) who were willing to consider an abortion would do so only in the first trimester. Among the gravid women willing to consider an abortion in the first or second trimester, 84% would do so after rape/incest or if their life was endangered and 76% would if their fetus had Down syndrome. Gravid women considering abortion were more likely to be white, older, have had a previous abortion, and to express distrust in the health care system. Women who would not consider abortion were more likely to be multiparous, married/living with partner, and to express greater faith and fatalism about their pregnancy outcome. CONCLUSION: Although most pregnant women enrolled in prenatal care support abortion availability, about half would only consider a first-trimester procedure. These findings underscore the need for early prenatal genetic counseling, screening, and testing.

Abortion, Therapeutic↗
PubMed2005

Improving the accuracy of fetal foot length to confirm gestational duration.

OBJECTIVE: To establish normative fetal foot length ranges using last menstrual period (LMP) and ultrasound dating by biparietal diameter and to examine variations in these ranges by ethnicity. METHODS: A consecutive series of 1,099 eligible subjects receiving abortions had fetal foot lengths measured directly. Models of fetal foot length were developed by using assessment of gestational duration by LMP alone, ultrasonography alone, and "best estimate" (LMP confirmed by ultrasonography). RESULTS: The full sample model using ultrasound dating (n = 1,099) yielded the following equation: foot length = -30.3 + days of gestation x 0.458 (R(2) of 0.92). Regression by LMP-determined gestational duration by using the "best estimate" sample (n = 491) provided an almost identical equation (foot length = -29.8 + days of gestation x 0.45) and a similar R(2) value of 0.87, although the standard errors were larger. Gestational duration by ultrasonography alone produced a better model fit than duration by LMP alone. Regressions by ethnicity were not significantly different compared with the simple regression, regardless of method used to determine gestational duration. CONCLUSION: A reconsideration of fetal foot length measurements to confirm gestational duration is important. More accurate tables of these measurements allow for greater precision in correlating gestational duration and foot length. Fetal foot length tables using ultrasonographically confirmed gestational duration and current statistical standards should replace tables currently used. Biparietal diameter as a single measurement provides adequate estimation of gestational duration in the second trimester for pregnancy termination, proving more reliable than LMP dating. LEVEL OF EVIDENCE: II-2.

Adolescent↗
PubMed2005

Obstetrics and gynecology resident satisfaction with an integrated, comprehensive abortion rotation.

OBJECTIVE: To evaluate obstetrics and gynecology resident satisfaction with a comprehensive, integrated abortion rotation. METHODS: The University of California, San Francisco obstetrics and gynecology residency program includes a 6-week PGY-3 family planning rotation at an in-hospital clinic where abortions are provided up to 23 weeks of gestation. Residents annually evaluate the educational value of all clinical rotations on a 5-point Likert scale, with 5 indicating "maximum value," and 1 "no value." Using data from 1998-2003, we compared ratings of the family planning rotation with all other PGY-3 rotations. We also surveyed residents 1 to 3 years after graduation to assess the rotation qualitatively and quantitatively. RESULTS: Forty residents completed the abortion training, none opted out of training, and all completed the evaluations. Of all rotations in the third year, the family planning rotation was the highest rated (4.70), was similar in value to a high-volume surgical rotation (4.51, P > .10) and the elective rotation (4.45, P >.05), and surpassed the average score for all inpatient rotations (4.00, P < .001), continuity clinic (4.10, P < .001), and outpatient clinical experiences (4.06, P <.01). According to residency graduates, the family planning rotation was rated 4.8 (where 5 indicates "far greater value" than other rotations), and 85% of respondents rated it of "maximum learning value". CONCLUSION: Obstetrics and gynecology residents place high value in the University of California, San Francisco PGY-3 family planning rotation during their training and in their first years of practice.

Abortion, Induced↗
PubMed2005

Misoprostol compared with laminaria before early second-trimester surgical abortion: a randomized trial.

OBJECTIVE: To compare the efficacy and acceptability of same-day misoprostol and overnight laminaria for cervical ripening before early second-trimester surgical abortion. METHODS: We performed a randomized, double-blinded, controlled trial comparing 400 microg of vaginal misoprostol, given 3-4 hours preoperatively, with overnight laminaria before early second-trimester surgical abortion among women at 13.0-16.0 weeks of gestation (n = 84). The primary outcome was procedure time, and the sample size was based on 95% power to detect a difference of 4.5 minutes between groups. Secondary outcomes included completion of the procedure on the first attempt, procedural difficulty, and patients' pain scores and preferences. RESULTS: The average gestational duration was 14 weeks 6 days. Procedures performed after laminaria were significantly faster than those after misoprostol (median 3.4 versus 7.2 minutes, respectively, P = .01). Laminaria patients had significantly greater dilation than misoprostol patients at abortion (mean 43 versus 33 French, P < .001), and more misoprostol patients required additional dilation (85% versus 21%, P < .001). Physicians rated 27% of the misoprostol procedures as moderate-markedly difficult versus 5% of laminaria procedures (P = .01). Differences in efficacy were pronounced among nulliparous patients. There were no significant differences in ability to complete the procedure on the first attempt or patients' intraoperative pain scores. More women in the misoprostol group would choose their assigned method again (93% versus 62%, P < .01), and 82% of all subjects preferred a 1-day procedure. CONCLUSION: Early second-trimester abortions take longer and are technically more challenging after cervical ripening with same-day misoprostol than with overnight laminaria, but patients prefer same-day misoprostol.

Abortifacient Agents, Nonsteroidal↗
PubMed2005

HIV sentinel surveillance among women seeking elective pregnancy termination, San Francisco.

OBJECTIVE: The objective of this study was to measure HIV prevalence, HIV incidence, and risk factors for infection among women seeking elective pregnancy termination in San Francisco. STUDY: The authors conducted a cross-sectional survey comprising a consecutive sample of women seeking elective pregnancy termination in San Francisco's county hospital from August 2002 to July 2003. Demographic and risk behavior information was abstracted from routine clinic records. HIV testing was conducted on blood specimens collected for other purposes after removing identifying information. RESULTS: Based on 11 HIV-positives among 1,992 tested, HIV prevalence among women seeking pregnancy termination was 0.55% (95% confidence interval [CI], 0.28-0.99). One recent HIV seroconversion was detected for an annual incidence of 0.11% per year (95% CI, 0.23-0.88). In addition, risk factors significantly associated with HIV infection included sex with a known HIV-positive man, history of an abnormal Pap smear, history of genital herpes infection, history of trichomoniasis, and age 25 to 29 years. CONCLUSIONS: Women electing pregnancy termination can serve as a sentinel population to track trends in the HIV epidemic. However, barriers remain to wider implementation of the approach as a surveillance tool.

Abortion, Induced↗