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W Cates

Publications and source records attributed to W Cates.

At least 73 records · Page 4Linked to original sources
PubMed1984

Preventing neonatal herpes. The value of weekly viral cultures in pregnant women with recurrent genital herpes.

To reduce the occurrence of neonatal herpes, laboratory screening with viral cultures during the last four to eight weeks of pregnancy has been recommended as a way to recognize women with subclinical herpes infection at delivery. Screening efforts have focused on a group of high-risk women, especially those with recurrent genital herpes infection. Using the technique of decision analysis, we examined the benefits, risks, and costs of viral culture screening for women with recurrent genital herpes. In a cohort of 3.6 million women, we estimate that screening would avert 11.3 neonatal deaths and 3.7 cases of severe retardation, but 3.3 women would die as a result of cesarean deliveries necessitated by culture results. Weekly viral cultures would diagnose one fourth of women with subclinical recurrent infection at delivery. The cost per case averted would be approximately $1.8 million. Future screening recommendations should consider not only the number of cases averted but also the effectiveness of screening and the costs in both maternal lives and medical care dollars.

Cesarean Section↗
PubMed1984

Hospitalizations for pelvic inflammatory disease. Epidemiology and trends in the United States, 1975 to 1981.

To assess trends in hospitalizations for pelvic inflammatory disease (PID) in the United States for 1975 through 1981, we analyzed data from the Hospital Discharge Survey conducted by the National Center for Health Statistics. Overall, both the estimated number and rate of hospitalizations for PID among women aged 15 to 44 years rose slightly. For the seven-year period, an estimated average of 267,200 women were hospitalized annually for PID, with hospitalization rates averaging 5.3 per 1,000 women. Risk of hospitalization for PID was greatest among women in their 20s. Divorced or separated women were considerably more likely to have been hospitalized than single or married women. Although nonwhite women had estimated average rate 2.5 times higher than for white women, the trend of hospitalizations for PID among nonwhite women appeared relatively stable while the trend among young white women showed measurable increases.

Adolescent↗
PubMed1984

Midtrimester abortion. Intra-amniotic instillation of hyperosmolar urea and prostaglandin F2 alpha v dilatation and evacuation.

Although dilatation and evacuation (D&E) is currently the most common method of midtrimester abortion in the United States, the intra-amniotic instillation of hyperosmolar urea and prostaglandin F2 alpha combined (U-P) has been proposed as a safer technique. To evaluate the comparative safety of U-P and D&E, we analyzed 2,805 U-P and 9,572 D&E abortions at 13 to 24 menstrual weeks' gestation. The U-P procedure resulted in significantly more serious complications than D&E (1.03 v 0.49 per 100 abortions). After adjusting for patient age, race, parity, follow-up information, and preexisting conditions, the relative risk of serious complications associated with U-P was 1.9 (95% confidence interval, 1.2 to 3.1). This advantage for D&E stems from its applicability to the 13- to 16-week interval. Although D&E appears to be safer overall in the midtrimester, for women obtaining abortion after 16 weeks, the rates of serious complications were comparable, with a relative risk of 1.0 (95% confidence interval, 0.4 to 2.5).

Abortion, Induced↗
PubMed1984

Control of sexually transmitted diseases: view from the United States of America.

Past sexually transmitted disease (STD) control efforts in the United States of America have generally permitted a timely response to changes in intervention technology, antibiotic resistance, public funding, and media interest. Today, however, the expansion of STD organisms and syndromes at logarithmic rates has taxed our traditional labour intensive control approaches. We describe briefly the history of STD control strategies in the United States, discuss the seven components upon which current efforts are based, and speculate about our future programme initiatives.

Anti-Bacterial Agents↗
PubMed1984

Ectopic pregnancy mortality, United States, 1979 to 1980: clinical aspects.

Ectopic pregnancy has recently become a major cause of maternal mortality in the United States. Despite its increasing public health impact, relatively little is known about the clinical epidemiology of this condition. Therefore, the authors investigated all reported deaths from ectopic pregnancy in the United States occurring in 1979 and 1980, to determine characteristics of, and risk factors for, fatal ectopic pregnancy. Most women (85%) died from hemorrhage. Abdominal and interstitial implantations were more likely to become symptomatic later in gestation and to be fatal than were tubal implantations. Of those deaths for which circumstances were known, more prompt diagnosis and treatment of ectopic pregnancy by health professionals might have prevented one-half of the deaths. One-third of the deaths might have been prevented if the women had notified or visited a physician more promptly after the onset of symptoms. Timelier action by women and health professionals could reduce ectopic pregnancy mortality.

Adult↗
PubMed1984

Sexually transmitted diseases and family planning. Strange or natural bedfellows?

As disciplines of reproductive medicine, the fields of sexually transmitted diseases and family planning are characterized by intrinsic similarities and fundamental differences. The similarities provide a foundation upon which to merge the two disciplines, but the differences pose practical limitations. While a union of these two fields into a common endeavor is conceptually appealing for both the provider and consumer, the differences make the merger a difficult task.

Contraception Behavior↗
PubMed1984

Hysterectomy as treatment for complications of legal abortion.

The frequency of hysterectomy as treatment for abortion complications may reflect the incidence of serious abortion morbidity. To examine this use of hysterectomy, the authors analyzed reports of approximately 237,000 legal abortions performed in the United States from 1970 to 1978. Overall, the rate of hysterectomy associated with curettage abortion decreased from 4.6 per 10,000 abortions in 1970 to 1971 to 1.4 per 10,000 in 1975 to 1978; the rate of hysterectomy associated with instillation abortion fell from 6.8 to 4.3 per 10,000 for the same years. A history of older age, previous births, use of instillation abortion, and preexisting gynecologic disorders increased the likelihood of hysterectomy. In cases of curettage abortion, hysterectomy rates increased significantly with advancing gestational age. Changes in abortion technology, improvements in physician skill, and more conservative management of complications have likely contributed to the decreasing frequency of hysterectomy necessitated by abortion complications.

Abortion, Legal↗
PubMed1983

The risks associated with teenage abortion.

the risks of morbidity and mortality affect a teenager's choice between termination of a pregnancy through induced abortion and continuation of the pregnancy. To identify these risks, we analyzed information from two separate sets of data collected by the Centers for Disease Control: that of the Joint Program for the Study of Abortion, a multicenter prospective study of nearly 165,000 legally induced abortions; and that of a national surveillance of abortion-related mortality. The rates of major complications associated with abortions in teenagers were 1 to 3 per 1000 suction-curettage procedures and approximately 13 per 1000 saline-administration procedures. The death-to-case rate for teenage women was 1.3 per 100,000 procedures. When the data on procedures were adjusted according to gestational age, teenagers generally had lower rates of morbidity and mortality from induced abortion than older women.

Abortion, Induced↗
PubMed1983

Urea-prostaglandin versus hypertonic saline for instillation abortion.

Authorities have suggested use of a combination of hyperosmolar urea and low-dose prostaglandin F2 alpha as a second-trimester intra-amniotic abortifacient to avoid the disadvantages of hypertonic saline solution. To examine the safety and efficacy of urea-prostaglandin compared with the instillation of saline solution, we analyzed data from a prospective multicenter study conducted in the United States between 1975 and 1978. Both agents were highly effective in producing an abortion. However, urea-prostaglandin had a significantly lower rate of serious complications when compared with saline solution (1.03 versus 2.18 per 100 abortions; p less than 0.001). Urea-prostaglandin also had a significantly shorter induction-to-abortion time (14.2 versus 25.6 hours; p less than 0.001). Urea-prostaglandin, therefore, appears to be superior to hypertonic saline solution as an abortifacient.

Abortifacient Agents↗
PubMed1983

Measures to prevent cervical injury during suction curettage abortion.

Cervical injury is one of the most frequent complications of suction curettage abortion, yet little is known about its risk factors or prevention. In 15 438 suction curettage abortions carried out at less than or equal to 12 weeks' gestation in hospitals in the USA from 1975 to 1978 the incidence of cervical injury requiring suturing was 1.03 per 100 abortions. Among factors potentially within the physician's control, use of laminaria rather than rigid dilators for dilatation had a strong protective effect (relative risk 0.19), whereas performance of the abortion by a resident rather than an attending physician (relative risk 2.0) and use of general rather than local anaesthesia (relative risk 2.6) had detrimental effects on rates of cervical injury. Among other factors, a previous abortion had a protective effect (relative risk 0.46), whereas patient age less than or equal to 17 years had a detrimental effect (relative risk 1.9). Use of laminaria, performance of the abortion by an attending physician, and local anaesthesia together yield a 27-fold protective effect.

Abortion, Induced↗
PubMed1983

Ectopic pregnancy in the United States 1970 through 1978.

Trends of the incidence and mortality associated with ectopic pregnancy (EP) in the United States were examined for 1970 through 1978. The estimated number of EPs rose from 17,800 in 1970 to 42,400 in 1978, and the EP incidence rate rose from 4.5 per 1,000 reported pregnancies to 9.4 during the same time period. The risk of EP was higher for older women and nonwhite women. Over 2.5% of all reported pregnancies among nonwhite women aged 35 to 44 years were ectopic. The death-to-case rate for EP declined almost 75% during the study period but remained consistently higher for nonwhite women as compared with white women.

Abortion, Induced↗
PubMed1983

Women refused second-trimester abortion: correlates of pregnancy outcome.

Little is known of the outcome of pregnancy in women denied abortions in the United States. To address this question, we studied the pregnancy outcomes in 316 low-income women who were denied second-trimester abortion at a large, metropolitan teaching hospital in the Southeast between August, 1978, and July, 1979. Follow-up information was available on 82%. One in five women denied an abortion managed to obtain one elsewhere. Earlier gestational age at the initial abortion request, higher education level, and higher income were the best predictors of whether a woman subsequently obtained an abortion. For the women who continued their pregnancies, neither the rate of serious maternal complications nor the neonatal death rate was increased when compared with that of the rest of the hospital's population.

Abortion, Induced↗
PubMed1983

Maternal deaths associated with antepartum fetal death in utero, United States, 1972 to 1978.

Little is known about the overall incidence of fetal death in utero (FDIU) in the United States or about the risks associated with its management. To address these questions, this study provides nationwide incidence data and reviews nine deaths of women with FDIU in the United States from 1972 to 1978. The crude death-to-case rate associated with FDIU is at least 4.5 deaths per 100,000 cases (95% confidence limits, 2.1 to 8.5). Existing information from comparative studies is inadequate to evaluate the comparative safety of different methods of evacuating the uterus after FDIU occurs at different gestational ages. Management of such cases should be determined by both the experience of the physician with uterine evacuation techniques and the medical and psychologic needs of the woman.

Abortion, Missed↗
PubMed1982

Dilatation and evacuation procedures and second-trimester abortions. The role of physician skill and hospital setting.

Some clinicians have hesitated to perform dilatation and evacuation (D & E) procedures at 13 weeks' gestation or later because D & Es are more difficult to perform safely than suction-curettage procedures. Moreover, many clinicians still believe all second-trimester abortion procedures should be performed in a hospital. To evaluate these concerns, we analyzed 24,664 abortion performed between 1973 and 1978 by four physicians associated with a large outpatient abortion facility; 3,711 (15%) of the abortions were second-trimester procedures. Dilatation and evacuation was associated with a lower rate of serious complications per 100 procedures (0.23) than instillation of either dinoprost (prostaglandin F2 alpha) (1.28) or hypertonic saline (2.26). In addition, D & E had lower rates for most other specific complications. We conclude that D & E, while requiring more operator skill than earlier suction-curettage procedures, can be learned by gynecologists familiar with suction-curettage, can be performed more safely than the alternative instillation procedures, and can be safely practiced in selected ambulatory settings.

Abortion, Induced↗