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Biomedical subjects

Craig H Syrop

Publications and source records attributed to Craig H Syrop.

10 recordsLinked to original sources

Supernumerary minute ring chromosome 14 in a man with primary infertility and left varicocele.

OBJECTIVE: To describe a case of supernumerary minute ring chromosome (SMRC) in an infertile man, with the concurrent finding of a left varicocele. DESIGN: Case report. SETTING: Urologic infertility clinic in a university hospital. PATIENT(S): Male patient presenting with primary infertility. INTERVENTION(S): Karyotyping, genetic counseling, and microsurgical left varicocelectomy. MAIN OUTCOME MEASURE(S): Sperm concentration and motility, chromosomal number and structure. RESULT(S): Fluorescence in situ hybridization revealing SMRC 14. Sperm concentration and motility improved after left varicocele repair. CONCLUSION(S): A karyotype should be included in the evaluation of severe oligospermia. Although SMRC 14 may be associated with fertility problems, repair of a coexisting varicocele should be considered in these patients.

Adult↗

Hyperbaric oxygen and ovarian follicular stimulation for in vitro fertilization: a pilot study.

Our objective was to assess the safety and tolerability of hyperbaric oxygen therapy (HBO) as an adjunct to IVF therapy in women with a poor prognosis for pregnancy in a prospective observational pilot study. We conclude that HBO is well tolerated by women undergoing IVF treatment and that further study is required to determine whether this is an efficacious adjuvant therapy for women being treated by IVF.

Female↗

Computational models for prediction of IVF/ICSI outcomes with surgically retrieved spermatozoa.

IVF/intracytoplasmic sperm injection (ICSI) using surgically retrieved spermatozoa (SRS) is a key option in the treatment of severe male infertility. It was aimed to develop a computational model for the prediction of this modality's outcome. A dataset of 113 exemplars, derived from patients who underwent IVF/ICSI with SRS, was retrospectively analysed. The dataset, containing input features maternal age, sperm retrieval technique, type of spermatozoa used, type of male factor and output intrauterine pregnancy, was randomized into a modelling ('training') set of 83 and cross-validation ('test') set of 30. neUROn++, a set of C++ programs, was used to model the dataset using linear and quadratic discriminant function analysis, logistic regression, and neural computation. A 4-hidden node neural network was found to have the highest accuracy, with a test set receiver operator characteristic (ROC) curve area of 0.783. Reverse regression of this neural network showed maternal age to be the most significant feature in predicting pregnancy (P = 0.025), followed by sperm type (P = 0.076). Type of male factor (P = 0.47) and sperm retrieval technique (P = 0.88) did not predict outcome. In summary, a neural network of clinical relevance was found to be superior in terms of IVF/ICSI outcome prediction. Future media deployment is planned.

Adult↗

The desire of infertile patients for multiple births.

OBJECTIVE: To determine the proportion of infertile women who prefer a multiple birth over a singleton, patient characteristics associated with this desire, and patient knowledge about the risks of multiple births. DESIGN: Prospective analysis. SETTING: Academic university hospital-based infertility center and private general gynecology clinic. PATIENT(S): Four hundred sixty-four female patients with infertility who presented for their initial visit. MAIN OUTCOME MEASURE(S): Demographic characteristics, infertility history, desire regarding multiple births, knowledge of the risks of multiple births, and goals of infertility evaluation and treatment were determined by using a 41-question survey. Univariate analysis was performed to assess patient characteristics associated with the desire for multiple births. Independent factors associated with this desire were assessed by multivariable logistic regression analysis. RESULT(S): 20.3% of women desired multiples over a singleton gestation. Nulliparity, lower family income, younger patient age, prior evaluation for infertility, longer duration of infertility, and lack of knowledge regarding risks of twin gestations were associated with this desire. Only nulliparity and lower family income were independently associated. CONCLUSION(S): A sizable minority of infertility patients prefers a multiple birth as their treatment outcome. Patient education may be an effective strategy to reduce the incidence of twin and higher-order multiple pregnancies.

Adult↗

Implementation of assisted reproductive technologies following conservative management of FIGO grade I endometrial adenocarcinoma and/or complex hyperplasia with atypia.

OBJECTIVE: The objective was to report a series of infertility therapy outcomes following conservative management of endometrial adenocarcinoma and/or complex hyperplasia with atypia. METHODS: A retrospective review of the University of Iowa assisted reproductive technology database was performed. All women presenting with International Federation of Obstetrics and Gynecology (FIGO) grade I uterine adenocarcinoma and/or complex hyperplasia with atypia were assessed for type and duration of medical management, initial, interim treatment, and preinfertility treatment endometrial biopsy (BX) findings. Assessment of infertility treatment outcomes and postinfertility endometrial biopsy findings were performed. All of the pathology samples were re-reviewed at the Gynecologic Oncology Tumor Board to confirm the diagnosis by a pathologist with a particular expertise in gynecologic pathology. RESULTS: Four infertile women, three nulligravid and one primigravid, were evaluated with the diagnosis of FIGO grade 1 endometrial adenocarcinoma and/or complex hyperplasia with atypia desiring to preserve fertility. Two women with FIGO grade 1 endometrial adenocarcinoma were successfully treated with high-dose progestational agents resulting in normal proliferative endometrium. In addition, both women with complex hyperplasia with atypia were successfully treated with progestins and/or ovulation induction. Successful pregnancy outcomes were achieved for three of the four women with assisted reproductive technology. A total of five successful pregnancies and eight healthy live-born infants were achieved among three women. One of the four women was unable to conceive despite three cycles of in vitro fertilization. Hysterectomy was performed for recurrent complex hyperplasia with atypia. In our series, we found it can take 3-10 months (mean, 6.25 months; median, 6 months) to obtain benign endometrium preceding infertility therapy. CONCLUSION: This report demonstrates that conservative management of well-differentiated endometrial adenocarcinoma and/or complex hyperplasia with atypia followed by aggressive assisted reproduction is an option to highly motivated and carefully selected women.

Adenocarcinoma↗

Detection of cesarean scars by transvaginal ultrasound.

OBJECTIVE: To assess the ability of transvaginal ultrasound to detect cesarean scars and their defects in the nonpregnant state. METHODS: Asymptomatic, parous volunteers underwent transvaginal ultrasound of the cervix, uterus, and adnexa. Uterine measurements, the presence or absence of a cesarean scar, and the presence of a scar defect, defined as fluid within the scar, were recorded. All subjects completed a self-report questionnaire regarding obstetric history. Sonographers and investigators were blinded to subject history. RESULTS: A total of 70 subjects were enrolled. Of these, 38 women had a prior vaginal delivery and 32 women a prior cesarean delivery. One woman with a bicornuate uterus and three cesarean deliveries was excluded from data analysis. Real-time transvaginal ultrasound proved 100% sensitive (exact 95% confidence interval [CI] 88.8, 100) and 100% specific (exact 95% CI 90.7, 100). Stored image review had a sensitivity of 87% (exact 95% CI 70.2, 96.4) and a specificity of 100% (exact 95% CI 90.7, 100). Fluid was visualized within the scars of 13 of 31 subjects (42%) with a prior cesarean delivery. All 13 were found among the 23 subjects (56%) who had labored prior to cesarean delivery. Moreover, women with cesarean scar defects had a greater number of cesarean deliveries (P <.04) than women without scar defects. CONCLUSIONS: Transvaginal ultrasound is highly accurate in detecting cesarean hysterotomy scars. Cesarean scar defect, defined by the presence of fluid within the incision site, was more common when labor preceded cesarean delivery and with multiple cesarean deliveries.

Adult↗

Two successful pregnancies after conservative treatment of endometrial cancer and assisted reproduction.

OBJECTIVE: To report successful pregnancies after conservative management of FIGO grade I adenocarcinoma of the endometrium. DESIGN: Retrospective chart review. SETTING: University-based assisted reproduction and oncology units. PATIENT(S): One patient who had two separate pregnancies. INTERVENTION(S): High-dose progestin (megestrol acetate) therapy for adenocarcinoma, followed by assisted reproduction with donor oocyte. MAIN OUTCOME MEASURE(S): Histologic evaluation of endometrium after megestrol acetate and at completion of childbearing, and successful pregnancies and deliveries. RESULT(S): The patient had complete resolution of adenocarcinoma with progestin therapy and successful delivery of two pregnancies after assisted reproduction. CONCLUSION(S): Conservative management of International Federation of Gynecology and Obstetrics grade I adenocarcinoma of the endometrium allows preservation of childbearing.

Adenocarcinoma↗

Natural history of uterine polyps and leiomyomata.

OBJECTIVE: To estimate the incidence and regression rates of uterine leiomyomata and polyps in a cohort of asymptomatic, premenopausal women. METHODS: Saline infusion sonography was performed twice, 2.5 years apart, in a cohort of 64 initially asymptomatic women. Subjects completed a questionnaire that assessed the development of abnormal uterine bleeding. RESULTS: The mean age of women (at second ultrasound) was 44 years. In four of seven women with polyps at the original ultrasound, their polyps regressed. Polyps that regressed tended to be smaller than polyps that persisted. Ten women had endometrial polyps at the second ultrasound for a point prevalence of 16% and a cumulative incidence rate of 12% per 2.5 years. A higher percentage of women with uterine polyps had complaints of abnormal uterine bleeding than women with no uterine abnormalities (70% versus 33%, P =.04). Six leiomyomata in four women were no longer detected in the second ultrasound. Leiomyomata that regressed were in older premenopausal women and were smaller than leiomyomata that persisted. The point prevalence and incidence rates of leiomyomata were 27% and 13% per 2.5 years, respectively. Leiomyomata grew an average of 1.2 cm per 2.5 years, but great variation in growth rates were noted. CONCLUSION: Small uterine polyps frequently regressed spontaneously, whereas larger polyps were more likely to persist and were associated with the development of abnormal bleeding. Smaller leiomyomata in older premenopausal women also regressed whereas larger leiomyomata tended to grow while often remaining asymptomatic.

Adult↗

Placenta accreta postpartum.

BACKGROUND: Placenta accreta is the abnormal attachment of the placenta to the uterus. It occurs when the decidua basalis is either absent or incomplete. It is uncommon and most often presents with a retained placenta and hemorrhage. CASE: A 29-year-old gravida 1 had an uncomplicated antenatal course and delivery. The third stage of labor was complicated by a retained placenta necessitating manual removal. Her postpartum course was complicated by a persistent endometritis. The diagnosis of placenta accreta was made with the help of sonohysterography. CONCLUSION: Sonohysterography is a useful tool in discriminating a solid intracavitary mass from a placenta accreta postpartum.

Adult↗