Search PubMed⌕ Search

Biomedical subjects

M V Sauer

Publications and source records attributed to M V Sauer.

At least 181 records · Page 10Linked to original sources
PubMed1989

Predictive value of a single serum pregnancy associated plasma protein-A or progesterone in the diagnosis of abnormal pregnancy.

The value of a single measurement of serum levels of pregnancy associated plasma protein-A (PAPP-A) or progesterone (P4) in predicting abnormal gestations was assessed in 65 patients. P4 was greater than 20 ng/ml (mean +/- SEM 61.2 +/- 6.6 ng/ml, range 22.4-100.0 ng/ml) in all patients with normal intrauterine pregnancies (n = 21), and greater than 20 ng/ml (mean +/- SEM 8.5 +/- 3.9 ng/ml, range 0.1-68.8 ng/ml) in 16 out of 17 patients destined to abort spontaneously. Patients with ectopic gestations (n = 27) exhibited P4 values less than 20 ng/ml (mean +/- SEM 6.4 +/- 1.2 ng/ml, range 0.1-17.2 ng/ml). P4 levels in normal pregnancies were significantly higher (P = 0.001) than those of abnormal gestations. PAPP-A levels ranged from undetectable to 6448 mIU/ml in normal gestations. In 42 out of 44 abnormal pregnancies levels of PAPP-A were less than 100 mIU/ml, as were 7 out of 14 normal intrauterine pregnancies of less than 7 weeks gestational age. No ectopic demonstrated a value of PAPP-A greater than 50 mIU/ml and in 23 out of 27 ectopics, levels were undetectable. However, PAPP-A was less specific than P4 in correctly discriminating normal from abnormal gestations and exhibited lower positive and negative predictive values. It can be concluded therefore that a single PAPP-A measurement is of limited value in discerning normal from abnormal pregnancy prior to 8 weeks gestation. However, a single serum P4 is highly accurate and specific in detecting abnormal pregnancy, regardless of gestational age.

Female↗
PubMed1989

Serum cancer antigen 125 in ectopic pregnancy.

Serum cancer antigen 125 was measured in subjects with intrauterine pregnancy (n = 44), ectopic pregnancy (n = 76) and in nonpregnant controls (n = 17). Values were appreciably elevated only in ruptured tubal gestations.

Antigens, Tumor-Associated, Carbohydrate↗
PubMed1989

Transient acrosomal hypoplasia of spermatozoa and male fertility.

Successful pregnancy was established despite previous demonstration of acrosomal hypoplasia. Although initial studies of sperm function and electron microscopic evaluation of the semen documented the presence of severe structural abnormalities, the condition proved to be transient in nature.

Acrosome↗
PubMed1989

Management of unruptured ectopic gestation by linear salpingostomy: a prospective, randomized clinical trial of laparoscopy versus laparotomy.

This study was designed to compare prospectively the parameters of morbidity, cost, length of hospital stay, and fertility outcome after linear salpingostomy by laparoscopy versus laparotomy. Entry criteria included stable vital signs, hematocrit greater than 30%, age over 18 years, and desire for future fertility. All patients underwent diagnostic laparoscopy. Sixty patients with unruptured ectopic gestations of 5 cm or smaller were randomized to either laparoscopy (N = 30) or laparotomy (N = 30). Postoperative follow-up included serial measurements of serum beta-hCG titers at 3-day intervals and hysterosalpingography at 12 weeks. The laparoscopy and laparotomy groups were similar in age, height, weight, gravidity, gestational age, hematocrit, ectopic pregnancy size, and preoperative beta-hCG levels. The estimated blood loss was significantly (P less than .001) lower in patients undergoing laparoscopy, and was not affected by vasopressin injection. Two patients in the laparoscopy group required laparotomy for hemostasis, and two patients undergoing laparotomy had wound infection. One patient in each group had persistent trophoblastic activity. Baseline serum beta-hCG levels and the rate and magnitude of postoperative beta-hCG decline were similar in both groups. The length of hospital stay was significantly (P less than .001) shorter after laparoscopic salpingostomy (1.4 +/- 0.1 days) than after laparotomy (3.3 +/- 0.2 days). Postoperative hysterosalpingography showed patency of the involved tube in 16 of 20 (80%) and 17 of 19 (89%) of patients in the laparoscopy and laparotomy groups, respectively. Pregnancy rates were ten of 18 (56%) and 11 of 19 (58%) in these groups, respectively, and all pregnancies were conceived within 6 months of surgery.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1989

Urodynamic changes following hormonal replacement therapy in women with premature ovarian failure.

The mechanism by which estrogen supplementation improves the symptom of stress incontinence in postmenopausal women is unclear. Six women with proved premature ovarian failure were studied urodynamically before and after administration of oral and vaginal estrogen to study estradiol's effects on lower urinary tract function. Regardless of the mode of administration, estrogen supplementation did not produce any significant change in urethral pressure, functional length, or cystometric parameters. However, a significant increase in pressure transmission ratio (P less than .05) to the proximal and mid-urethra was noted after the administration of vaginal estrogen cream. We conclude that estrogen alone, in the absence of aging and other known precipitating factors for stress incontinence, is of minimal significance in maintaining normal urinary tract physiology.

Administration, Intravaginal↗
PubMed1989

Attitudinal survey of sperm donors to an artificial insemination clinic.

Donors (n = 42) to an artificial-insemination-by-donor sperm clinic were surveyed to ascertain individual motivations and attitudes regarding participation. Responses were compared to those of a matched control group (n = 50) of nondonors. Donors were motivated by money, with the majority (69%) unwilling to participate if financial incentives were withdrawn. Anonymity was desired, and donors did not favor disclosure of information to a national registry tracking insemination outcomes. However, donors and controls did endorse providing sperm for an infertile brother. Donors and controls differed significantly in response to 2 of 15 questions asked, with differences due to perceptions of donor motivation. Although perceived as altruistic by peers, donors did not envision themselves as such, and most considered donating semen similar to donating blood or organs.

Adult↗
PubMed1988

Effect of abstinence on sperm motility in normal men.

We investigated the effect of varying the length of ejaculatory abstinence on sperm motility by a method of automated videomicrography. Ten fertile donors to an artificial insemination clinic provided semen samples at randomly assigned intervals of 12, 24, 72, and 120 hours. All specimens were produced on site, immediately incubated at 37 degrees C, and processed in triplicate. In comparing ejaculates obtained after 12 hours' abstinence with those after 120 hours, semen volume and sperm concentration demonstrated a significant increase with increasing abstinence time (p = 0.03). However, no correlation between abstinence time and percentage of motility, lateral head amplitude, cross-beat frequency, mean velocity, and mean linearity was found. We conclude that motility does not change with ejaculatory frequency and that in normal men prescribed abstinence before analysis of semen for motility characterization may not be necessary.

Humans↗
PubMed1988

Rapid measurement of urinary pregnanediol glucuronide to diagnose ectopic pregnancy.

We investigated the ability of a single, random, urinary pregnanediol-3 alpha-glucuronide level to differentiate early intrauterine from ectopic pregnancy. Thirty-four patients with intrauterine gestations were compared with 60 patients with ectopic pregnancies. Urinary pregnanediol-3 alpha-glucuronide was measured by radioimmunoassay and enzyme immunoassay. Compared with intrauterine gestations, results demonstrate that urinary pregnanediol-3 alpha-glucuronide is significantly depressed in ectopic pregnancies: 24.5 +/- 2.2 versus 4.8 +/- 0.7 micrograms/ml (p = 0.0001). Urinary pregnanediol-3 alpha-glucuronide levels obtained by conventional radioimmunoassay correlated closely with values measured in minutes with enzyme immunoassay (r = 0.95, p = 0.0001), and with serum progesterone (r = 0.74, p = 0.0001). Urinary pregnanediol-3 alpha-glucuronide measured by enzyme immunoassay exhibited predictive values for detecting ectopic gestations comparable with random serum progesterone or serum beta-human chorionic gonadotropin values. We conclude that ectopic gestations demonstrate a reduced level of urinary pregnanediol-3 alpha-glucuronide (55/60 cases) detectable with a rapid enzyme immunoassay, which makes this assay a practical screening test in early pregnancy.

Chorionic Gonadotropin↗
PubMed1988

Ectopic pregnancy without laparotomy: defining the incidence of manageable patients.

To assess the incidence of ectopic pregnancies meeting published criteria for laparoscopic or medical therapy, we retrospectively evaluated tubal pregnancies admitted during a 12-month period. Because 41/121 (34%) were visible laparoscopically, unruptured, and less than or equal to 3 centimeters in diameter, we conclude that substantial numbers of ectopics may be managed without laparotomy.

California↗
PubMed1988

Survey of attitudes regarding the use of siblings for gamete donation.

We conclude that the acceptability of using a sister for gamete donation is high among couples desiring ovum donation. On the contrary, couples undergoing AID generally rejected the concept of using the husband's brother as a known donor. Thus, although similar in concept, disparity exists regarding the use of siblings for gamete donation. Though the use of sibling gamete donation may provide a short-term solution to the dwindling supply of acceptable gamete donors, the long-term acceptability of such practice remains unknown.

Attitude↗
PubMed1988

Persistent tubal ectopic gestation: patterns of circulating beta-human chorionic gonadotropin and progesterone, and management options.

To aid in the clinical decision making involved with persistent ectopic gestation, a total of 329 operative procedures for tubal gestation were reviewed. Six of 114 (5.3%) cases treated conservatively had persistent trophoblastic activity. The decline in serum beta-human chorionic gonadotropin (hCG) and progesterone (P) at 3 and 6 days postoperatively was similar in the "persistent ectopic" and the "resolved ectopic" groups. However, beyond day 6 both beta-hCG percentage of baseline and P level were significantly higher in the "persistent ectopic" (greater than 22.6 +/- 6.6%, greater than 3.4 +/- 0.7 ng/ml, respectively) than the "resolved ectopic" group (less than 2.7 +/- 0.8%, less than 0.2 +/- 0.05 ng/ml, respectively). Four patients underwent a second operation, whereas two were managed expectantly. These data suggest that the diagnosis of persistent ectopic gestation is best made by an initial measurement of serum beta-hCG or P at 6 days postoperatively, and at 3 day intervals thereafter. The choice of management may be determined by various factors including serum beta-hCG and patient's symptoms.

Adult↗
PubMed1988

Reliability of ultrasound in predicting uterine leiomyoma volume.

Recently ultrasound has been used to size and track individual myoma volumes for patients undergoing medical therapy. However, little is known about the specific performance characteristics and limitations of this technique with respect to volume measurements. We performed and prospectively interpreted serial ultrasound examinations on myoma patients and confirmed the location, size and number of myomas in the surgical specimens. The smallest detectable tumor was 2.7 cm in diameter. The specificity was 94%; reproducibility had a 14% coefficient of variation for tumors with diameters greater than 6 cm. We conclude that ultrasound is suitable for imaging and sizing myomas provided that the diagnosis is otherwise certain and the tumors tracked are large.

Female↗
PubMed1988

Corpus luteum activity in tubal pregnancy.

Corpus luteum activity was monitored in 20 women undergoing nonsurgical management of ectopic pregnancy with methotrexate and citrovorum factor (N = 15) or observation (N = 5). The functional integrity of the corpus luteum was assessed by measuring progesterone and 17-hydroxyprogesterone. Trophoblastic viability was assessed by measuring the immunoreactive beta subunit of human chorionic gonadotropin. Ten of 15 methotrexate-treated patients demonstrated initial progesterone levels above 1.0 ng/mL, declining to levels below 1.0 ng/mL after treatment. Five of 15 methotrexate-treated patients and all five managed by observation alone demonstrated progesterone and 17-hydroxyprogesterone values below 1.0 ng/mL both initially and throughout the surveillance period, leading to resolution, indicating previous death of the corpus luteum. We conclude the following regarding ectopic pregnancy: 1) Corpus luteum function declines early in the biologic history of some gestations while persisting in others, and 2) corpus luteum function varies from active to inactive independent of serum levels of immunoreactive beta-human chorionic gonadotropin.

17-alpha-Hydroxyprogesterone↗
PubMed1988

An instrument for the recovery of preimplantation uterine ova.

This report describes an instrument to recover fertilized ova from the human uterus without anesthesia. Two hundred sixty-five lavages were performed on 20 normal and presumed fertile women and on seven infertile women. Using 60 mL of fluid, median fluid recovery was 97% (range 65-100%). In the fertile women, ova were recovered in 40 of 90 insemination cycles (44%). Complications were rare (3%), but included two retained pregnancies, three minor pelvic infections, three occurrences of catheter kinking on insertion, and one failure to obtain insertion. Reproductive function in the subjects after repeated use does not appear to be impaired.

Embryo Transfer↗