Apnea-hypopnea index in nonobese women with polycystic ovary syndrome

Objective

To assess the influence of polycystic ovary syndrome (PCOS) on respiratory events during sleep in nonobese Taiwanese women.

Method

Overnight polysomnography was recorded in 18 nonobese women with PCOS who had not received treatment (body mass index [BMI] 21.7 ± 0.57, age 29.1 ± 1.43 years) and in 10 age- and BMI-matched women without PCOS (BMI 20.9 ± 0.58, age 31.6 ± 3.87 years).

Results

The nonobese women with PCOS had a higher total apnea-hypopnea index (AHI) especially during the non-rapid eye movement stage (AHI_NREM) than the women who did not have PCOS. The women with PCOS had higher serum levels of high-sensitivity C-reactive protein (hsCRP) and this was positively correlated with AHI_REM. Total testosterone level was positively correlated with AHI_NREM, and androstenedione was negatively correlated with AHI_NREM.

Conclusion

PCOS was directly linked to increased obstructive respiratory events during sleep in nonobese women in Taiwan.     

Immunohistochemical expression of Annexin A2 and S100A proteins in patients with bulky stage IB-IIA cervical cancer treated with neoadjuvant chemotherapy

Objective

Abnormal expression of Annexin A2 and S100A proteins has been reported to induce sensitivity/resistance to chemotherapy in a variety of cancers. The aim of this study was to evaluate the significance of Annexin A2 and S100A protein expression to predict response to neoadjuvant chemotherapy and prognostic significance of these protein expressions in bulky stage IB-IIA cervical cancer patients.

Methods

Paired tumor samples (pre- and post-chemotherapy) were obtained from 68 patients who were treated with cisplatin-based neoadjuvant chemotherapy and radical hysterectomy at our hospital from 2006 to 2011. The expression of Annexin A2 and S100A proteins was analyzed by immunohistochemistry.

Results

Thirty-six patients were identified as chemotherapy-response and 32 were non-response. (a). Protein expression in tumor cells: (1). Exposure of tumor cells to chemotherapy results in a change of Annexin A2 and S100A expression (P < 0.05). (2). Annexin A2, S100A8 and S100A9 protein expression correlates with tumor response to chemotherapy (P < 0.05). (b). Protein expression in stromal cells: (1). Expression of Annexin A2, S100A8 and S100A9 was increased, but S100A2 and S100A4 was decreased after exposure to chemotherapy (P < 0.05). (2). Only S100A4 expression was associated with response to chemotherapy (P < 0.05). Multivariate analysis revealed that tumor size (P = 0.022), differentiation (P = 0.000), Annexin A2 expression in stromal cells (P = 0.009), and S100A8 expression in tumor cells (P = 0.008) were independent prognostic factors for progression-free survival of cervical cancer patients.

Conclusions

Expression of some of the measured proteins in tumor and stromal cells correlates with chemotherapy exposure, response to therapy, and progression-free survival.     

Single-port laparoscopic myomectomy using transumbilical GelPort access

Objective

To describe our initial experience with single-port laparoscopic myomectomy (SP-LM) using transumbilical GelPort access and the surgical technique used, and to evaluate the safety and feasibility of this procedure.

Study design

A prospective observational study was performed at a university teaching hospital from January 2009 to December 2009. Fifteen patients with symptomatic subserosal or superficial intramural myomas (≤8 cm) underwent SP-LM.

Results

The mean age and body mass index were 35.0 ± 8.6 years and 22.6 ± 2.6 kg/m². Two patients had a history of previous abdominal surgery, consisting of one and two cesarean deliveries. The mean operating time, hemoglobin change, return of bowel activity, and length of hospital stay were 81 ± 21.5 min, 1.1 ± 0.5 g/dL, 34.3 ± 5.9 h, and 3.1 ± 0.5 days, respectively. In one patient (6.7%), SP-LM was converted to two-port LM. There were no surgical or wound complications in any patient, and the histopathological result was leiomyoma in all the cases.

Conclusion

SP-LM is feasible in selected patients with symptomatic myoma.     

Determinants of fertility and reproductive success after hysteroscopic septoplasty for women with unexplained primary infertility: a prospective analysis of 88 cases

Objective

To evaluate prospectively the effect of hysteroscopic septoplasty as therapy for unexplained primary infertility in women with uterine septum as a sole cause for reproductive failure and to define the factors influencing reproductive success.

Study design

In a prospective comparative study, we enrolled 103 infertile women with uterine septum as a sole cause for reproductive failure. They had had unexplained primary infertility >2 years and a follow-up >12 months. Uterine anomalies were diagnosed by means of hysterosalpingography (HSG) and 2D-transvaginal sonography (TVS) with intrauterine saline infusion. Hysteroscopic septoplasty was performed in the early follicular phase. Pregnancy rates (PR) according to patient and septum characteristics (septum size) were the main outcome measures.

Results

Follow-up was complete for 88 patients. The mean (±SD) age of the patients was 36.1 ± 2.1 years. Forty-two patients became pregnant (40.7%). The mean (±SD) delay in conception was 7.5 ± 2.6 months. Nearly 80% of the pregnant women conceived spontaneously. Of 44 pregnancies in 42 women, 36 live newborns were delivered. The PR was significantly higher in women <35 years of age or with <3 years of unexplained primary infertility. Moreover, in women with a septum size larger than one-half of their uterine length the PR was significantly higher than those with septum size <1/2 of their uterus (P = .12).

Conclusion

Fertility and pregnancy after hysteroscopic septoplasty in women with unexplained primary infertility and uterine septum as a sole cause for reproductive failure seems to depend on patient age, duration of infertility before septoplasty, and septum size. Women with a septum size larger than one-half of their uterine length have a higher chance of successful pregnancy after hysteroscopic septoplasty.     

Abdominal electromyography may predict the response to tocolysis in preterm labor

Objective

To determine whether abdominal electromyography can predict the response to tocolysis in pregnant women in preterm labor.

Study design

This study was carried out at the Department of Obstetrics and Gynecology, Menofyia University Hospital in Egypt. Fifty pregnant women in preterm labor who fulfilled the inclusion criteria were enrolled. Baseline abdominal electromyography was performed. Tocolysis in the form of hexoprenaline sulphate infusion was started for all women and electromyography was repeated after 24 h in responders but only after 6 h in non responders. The receiver operating characteristics curve was drawn to calculate specificity of the electromyography at 100% sensitivity. Results were tabulated and statistically analyzed.

Results

Forty women responded to tocolysis by delaying delivery for more than 48 h. There was a significant reduction in the frequency of uterine contractions after tocolysis (3.76 ± 0.92 versus 2.32 ± 2.05 contractions per 10 min; P < 0.001). Similar significant reductions affected the duration and amplitude of uterine action potentials (25.08 ± 9.74 versus 14.4 ± 17.16 s; P < 0.001, 40.8 ±  25.89 versus 28.32 ± 29.38 mV; P < 0.001). At a sensitivity of 100% and using ROC curve, abdominal electromyography of amplitude of 82 mV lasting for 30 s or more had a specificity of 90%, positive and negative predictive values of 67% and 95%, and a diagnostic accuracy of 88% in predicting preterm labor.

Conclusion

Abdominal electromyography may predict the response to tocolysis in preterm labor.     

Oxidized low-density lipoproteins in cord blood from neonates with intra-uterine growth restriction

Objective

We verified whether oxidative stress indices (oxidized low-density lipoproteins and malondialdehyde) and inflammatory biomarkers (circulating C-reactive protein, interleukin-6, tumour necrosis factor-α, serum amyloid A and soluble intercellular vascular cell adhesion molecule) are increased in the umbilical vein of placental insufficiency induced intra-uterine growth restricted neonates.

Study design

The prospective cohort study, involving 3 tertiary care centers, consists of 200 consecutively recruited pregnant women carrying twins. We chose the twin pregnancy model because both fetuses share the same maternal environment, thereby avoiding potential confounding factors when comparing oxidative stress and inflammation biomarkers. We analysed only twin pairs with one with intra-uterine growth restriction (N = 38) defined as fetal growth < 10th percentile with abnormal Doppler of the umbilical artery. Blood samples were taken at birth from the umbilical vein. Intra-pair comparisons on the biomarkers were performed using the Student paired t-test.

Results

We observed increased cord blood levels of oxidized low-density lipoproteins, (2.394 ± .412 vs 1.296 ± .204, p = .003) but not of malondialdehyde in growth restricted neonates when compared to their normal counterparts. Although indices of inflammation tended to be increased in cord blood from growth restricted newborns, the difference did not reach statistical significance.

Conclusion

In the twin model, intra-uterine growth restriction is associated with low-density lipoprotein oxidation without apparent dysregulation of inflammation biomarkers.

Condensation

Increased oxidized low-density lipoproteins are observed in growth restricted twins compared to their co-twins with normal growth at birth.     

Morphological characteristics of placentas associated with idiopathic intrauterine growth retardation: a clinicopathologic study

Objectives

To investigate histopathologic findings, placental diameters and characteristics of syncytial knots in the placentas from idiopathic intrauterine growth retardation (IUGR) pregnancies, and to compare them with a normal birth weight group.

Study design

Based on strict eligibility criteria, this prospective case-control study included 52 term placentas from idiopathic IUGR pregnancies and 69 term placentas from normal birth weight pregnancies. The study was carried out at the Clinical Hospital Centre, Split, where all placentas were collected and examined. For each placenta, diameters were measured and the following histopathologic findings were recorded: infarction, intervillous thrombosis, abruption, villous branching and maturation, chorioamnionitis, decidual vasculopathy and hemorrhagic endovasculitis for each placenta. In addition we assessed quantitative (number of syncytial knots and number of syncytial nuclei per syncytial knot) and qualitative (density and surface area) characteristics of syncytial knots in each placental sample. Statistical significance was tested using χ²-test, Student's t-test and Mann-Whitney U-test. Statistical significance was set at P ≤ 0.05.

Results

There was no difference in investigated histopathologic findings between idiopathic IUGR placentas and control group placentas. Placental diameters correlated significantly with neonatal birth weight (r = 0.64; P < 0.01); with higher birth weight there is an increase in placental diameters. Syncytial knots from idiopathic IUGR had significantly smaller surface area (Z = 2.637; P = 0.008) and higher density (Z = 3.225; P = 0.001) compared with the control group, while there is no difference in number of syncytial knots per individual villus, total number of syncytial knots in each placenta sample or number of syncytial nuclei per syncytial knot.

Conclusions

The investigated histopathologic findings in idiopathic IUGR placentas are incidental, with no higher frequency than in placentas from uncomplicated pregnancies, and should not be considered as possible causative factors for idiopathic IUGR. The demonstrated qualitative changes of syncytial knots in placentas associated with IUGR could represent a compensatory mechanism.     

Monoamniotic-versus diamniotic-monochorionic twin placentas: anastomoses and twin-twin transfusion syndrome

Objective

The purpose of this study was to compare monoamniotic-monochorionic and diamniotic-monochorionic twin placentas and to estimate the incidence of twin-twin transfusion syndrome in monoamniotic-monochorionic twin pregnancies.

Study design

We analyzed the angioarchitecture and cord insertion distance in 24 monoamniotic-monochorionic and 200 diamniotic-monochorionic placentas.

Results

Compared with diamniotic-monochorionic placentas, monoamniotic-monochorionic placentas had significantly more arterioarterial anastomoses (20/20 vs 159/200, respectively; P = .013), significantly less opposite arteriovenous anastomoses (10/20 vs 165/200, respectively; P = .002), similar venovenous anastomoses (6/20 vs 46/200, respectively; P = .323), and arteriovenous anastomoses (20/20 vs 187/200 respectively; P = .279) and significantly shorter umbilical cord distances (median [±SD], 5.0±6.9 cm vs 17.5±6.8 cm; P<.001).

Conclusion

Monoamniotic-monochorionic and diamniotic-monochorionic placentas have different anastomotic patterns. The (virtually) 100% incidence of arterioarterial anastomoses in monoamniotic-monochorionic placentas explains the reason that twin-twin transfusion syndrome rarely occurs in monoamniotic-monochorionic twin pregnancies and predicts that twin-twin transfusion syndrome manifestations are approximately 5 times less often recognized in monoamniotic-monochorionic pregnancies than in diamniotic-monochorionic pregnancies.     

Oral misoprostol reduces vaginal bleeding following surgical evacuation for first trimester spontaneous abortion

Objective

To assess the effectiveness and tolerability of misoprostol to reduce the amount and duration of vaginal bleeding following surgical evacuation for first trimester spontaneous abortion.

Methods

A total of 160 patients who underwent surgical evacuation for first trimester spontaneous abortion between 8 and 12 weeks of pregnancy were randomized into 2 groups to receive either 200 µg of oral misoprostol immediately after evacuation followed every 6 hours for 48 hours or no misoprostol. Pain scores, duration and amount of bleeding, and endometrial thickness were assessed over 10 days.

Results

Women who received misoprostol had significantly fewer bleeding days after evacuation (4.11 ± 2.69 vs 5.89 ± 3.06; P < 0.001), fewer patients reported vaginal bleeding lasting 10 days or more (3.8% vs 15.0%; P = 0.014), and endometrial thickness 10 days after evacuation was less (6.25 ± 2.38 vs 7.23 ± 1.94; P = 0.05). Pain scores were comparable in both groups (1.54 ± 0.65 vs 1.63 ± 0.83; P = 0.40) after 10 days.

Conclusion

Oral misoprostol is effective in reducing the prevalence and amount of vaginal bleeding after surgical evacuation for first trimester spontaneous abortion.     

Activation of mTOR signaling pathway associated with adverse prognostic factors of epithelial ovarian cancer

Objective

Activation of the mammalian target of rapamycin (mTOR) pathway enhances cell survival and growth by regulating the efficiency of protein translation. This study was conducted to evaluate the association of activated mTOR signaling molecules with the clinicopathologic characteristics in epithelial ovarian cancer.

Methods

Immunohistochemical staining with antibodies against p-4EBP1, p-mTOR, and p-p70S6K were performed on specimens of 103 patients with ovarian cancer. Tumors were classified as chemoresistant in cases where time to recurrence after the end of chemotherapy was shorter than 6 months.

Results

Expressions of p-mTOR, p-4EBP1, and p-p70S6K were detected in 47.6%, 85.4%, and 64.1% of all patients, respectively. p-4EBP1 overexpression was associated with advanced stage (p = 0.04), histologic grade (p < 0.01), residual mass (p < 0.01), shorter disease-free survival rate (p = 0.01) and chemoresistance (p = 0.02). p-p70S6K was associated with residual mass with marginal significance (p = 0.06). p-4EBP1 expression was correlated with p-p70S6K expression (r = 0.42, p < 0.01), whereas p-mTOR was not associated with expression of its downstream effectors or prognostic factors.

Conclusions

Our findings suggest that p-4EBP1 expression was associated with poor prognostic factors of ovarian cancer and that p-4EBP1 overexpression may be a prognostic biomarker of ovarian cancer.     

A comparative study of the non-pneumatic anti-shock garment for the treatment of obstetric hemorrhage in Nigeria

Objective

To determine whether the non-pneumatic anti-shock garment (NASG) can improve maternal outcome.

Methods

Women were enrolled in a pre-intervention phase (n = 83) and an intervention phase (n = 86) at a referral facility in Katsina, Nigeria, from November 2006 to November 2007. Entry criteria were obstetric hemorrhage (≥ 750 mL) and a clinical sign of shock (systolic blood pressure < 100 mm Hg or pulse > 100 beats per minute). To determine differences in demographics, condition on study entry, treatment, and outcome, t tests and χ² tests were used. Relative risk (RR) and 95% confidence interval (CI) were estimated for the primary outcome, mortality.

Results

Mean measured blood loss in the intervention phase was 73.5 ±93.9 mL, compared with 340.4 ± 248.2 mL pre-intervention (P < 0.001). Maternal mortality was lower in the intervention phase than in the pre-intervention phase (7 [8.1%]) vs 21 [25.3%]) (RR 0.32; 95% CI, 0.14-0.72).

Conclusion

The NASG showed potential for reducing blood loss and maternal mortality caused by obstetric hemorrhage-related shock.     

Color Doppler analysis of pelvic arteries following bilateral internal iliac artery ligation for severe postpartum hemorrhage

Objective

To compare Doppler blood flow characteristics of the uterine, arcuate, and ovarian arteries of women who underwent bilateral internal iliac artery ligation with those of controls.

Methods

Thirteen women who underwent bilateral internal iliac artery ligation for severe postpartum hemorrhage (PPH) were matched with 15 healthy women of reproductive age. Transvaginal color and pulsed (duplex) Doppler modes were used to visualize the pelvic arteries. The pulsatility index, the resistance index, the systolic/diastolic blood flow ratio, the peak systolic velocity, and the end-diastolic velocity were measured.

Results

The mean age was 26.1 ± 5.2 years in the study group and 27.0 ± 5.4 years in the control group. All participants had regular menstrual periods. There were no significant differences between the groups regarding each of the vascular indices for the uterine, arcuate, and ovarian arteries.

Conclusion

These findings are consistent with published data demonstrating that pelvic circulation is not compromised after bilateral internal iliac artery ligation.     

Endometrial ablation with the NovaSure system in Iran

Objective

To evaluate the rate of response to treatment with the NovaSure endometrial ablation device among Iranian women with menorrhagia.

Methods

Twenty 35-50-year-old women with menorrhagia who were referred to Arash Hospital, Tehran, Iran, in 2008 were enrolled. They underwent endometrial ablation via the NovaSure system and were followed-up for 2 years.

Results

The incidence of amenorrhea was 30.0% at the end of the 2-year follow-up period. Hypomenorrhea was reported by 40.0% of women. The mean number of days of bleeding per month decreased significantly, from 30.0 ± 6.4 days before treatment to 3.1 ± 2.6 days after 2 years (P < 0.001). The severity of bleeding decreased significantly within 2 years after treatment (P < 0.001). In total, 85.0% of women were satisfied and 90.0% had responded to treatment—as defined by amenorrhea, hypomenorrhea, or return to normal menstruation.

Conclusion

The NovaSure system is effective and should be considered by gynecologists for the treatment of menorrhagia.     

Primary repair of rectovaginal fistulas complicating pelvic surgery by gracilis myocutaneous flap

Objectives

Complex rectovaginal fistulas repair are extremely challenging. Various surgical options have been suggested; nevertheless, none had been universally accepted as the procedure of choice. This prospective study discusses a novel surgical technique using gracilis myocutaneous flap interposition.

Methods

Eleven patients had fistulas post-resection of pelvic malignancy (n = 10) and rectal endometriosis (n = 1). Primary treatment was pelvic resection; nevertheless, 6 cases had adjuvant chemo-irradiation, 2 cases had post-operative irradiation and 2 patients had chemotherapy only. Fistulas mean diameter was 2 ± 0.24 cm (1-3) and 8 patients (72.7%) had their fistulas in the middle vaginal third.Repair was wide debridement of fistulas margins followed by gracilis myocutaneous flap interposition with synchronous diverting stomas. Success was defined as healing of fistula after stomal closure.

Results

Five patients were repaired by single gracilis myocutaneous flaps, 2 cases by simple gracilis muscle and 4 cases by double gracilis myocutaneous flaps. Patients had a mean follow-up time of 34.8 ± 5.03 months (12-67) and all patients had definitive healing of their fistulas (100%). Median time to stoma closure was 2 months (1-5). Four women (36.4%) had at least one early postoperative complications including temporary leak (n = 3), vaginal sepsis (n = 1), partial skin paddle necrosis (n = 1) and donor limb deep venous thrombosis (n = 1). Late morbidities were seen in 3 cases (27.3%) including vaginal stricture, anorectal anastomotic stricture and anastomotic tumor recurrence.

Conclusion

Rectovaginal septum repair requires adequate debridement of necrotic devascularized tissues, tissue transposition and reconstruction of vaginal wall. Gracilis myocutaneous flaps are ideal for this issue.     

Oral misoprostol versus intracervical prostaglandin E2 gel for active management of premature rupture of membranes at term

Objective

To compare the efficacy and safety of oral misoprostol with intracervical prostaglandin E2 (PGE2) gel for the active management of premature rupture of membranes (PROM) at term.

Methods

Women with pregnancies between 37 and 42 weeks presenting with PROM at term and a Bishop score of 5 or less were randomly assigned to receive either a 4-hourly oral dose of 50 µg of misoprostol up to a maximum of 3 doses or 2 applications of intracervical PGE2 gel at a 6-hour interval. Oxytocin was given if labor had not started after 12 hours.

Results

Twenty women in the misoprostol group (n = 31) delivered within 12 hours compared with 5 in the PGE2 group (n = 30) (P < 0.001). The induction-to-delivery interval in the misoprostol group was shorter than in the PGE2 gel group (615 min vs 1070 min; P < 0.001). The mode of delivery was comparable between the 2 groups (P = 0.821). Abnormalities in uterine contractions and neonatal outcomes were also comparable. The requirement for oxytocin was lower and patient satisfaction was better in the misoprostol group.

Conclusion

Oral misoprostol is a safe and efficacious alternative to intracervical PGE2 gel in the active management of PROM at term.     

Meperidine versus valethamate bromide in shortening the duration of active labor

Objective

To compare the efficacy and safety of meperidine hydrochloride and valethamate bromide against placebo in shortening the duration of active labor.

Method

We randomly assigned 160 nulliparous women with a singleton pregnancy at term who needed induction of labor to one of 3 treatments: 50 mg of meperidine (n = 53), 16 mg of valethamate bromide (n = 53), or a normal saline solution as placebo (n = 54). All medications were given by slow intravenous infusion. Labor duration was the main outcome measure.

Results

The intervals between infusion and complete cervical dilation and between infusion and delivery were significantly reduced (P < 0.001 and P < 0.01) in the meperidine group (103.0 ± 64.5 minutes and 119.8 ± 70.2 minutes), in contrast to the placebo group (173.9 ± 74.8 minutes and 192.2 ± 82.8 minutes). However, differences were not significant between the 2 treatment groups (139.6 ± 63.1 minutes and 160.6 ± 71.9 minutes), or between the valethamate bromide and the placebo group.

Conclusion

Meperidine, but not valethamate bromide, significantly shortened the duration of active labor in nulliparous women with a singleton pregnancy at term.     

Effect of continuous support during labor on duration of labor and rate of cesarean delivery

Objective

To evaluate the effect of continuous support provided by midwives during labor on the duration of the different stages of labor and the rate of cesarean delivery.

Method

A randomized trial of 100 eligible nulliparous women who had not received education classes on childbirth. In the intervention group (n = 50), continuous support during labor was provided; the control group (n = 50) did not receive continuous support.

Results

The two groups did not differ by age, employment, educational level, gestational age, economic status, and neonatal weight. Mean duration of the active phase of labor (167.9 ± 76.3 vs 247.7 ± 101 min, P < 0.001), second stage of labor (34.9 ± 25.4 vs 55.3 ± 33.7 min, P = 0.003), and the number of cesarean deliveries (4 vs 12, P = 0.026) were significantly lower in the intervention group compared with the control group. The rates of oxytocin use and Apgar scores of less than 7 at 5 minutes were similar between the two groups.

Conclusion

Continuous support provided by midwives during labor may reduce the duration of labor and the number of cesarean deliveries; this model of support should be available to all women.     

Sublingual misoprostol for first trimester termination of pregnancy

Objectives

To compare blood loss, efficiency, and acceptability of repeated doses of sublingual misoprostol with the standard Tunisian regimen of mifepristone-misoprostol for first trimester medical abortion.

Methods

A prospective randomized trial of 252 healthy pregnant women requesting medical abortion in the first trimester (up to 56 days). Participants were randomized to receive 200 mg of oral mifepristone followed by 400 µg of oral misoprostol (group 1) or 800 µg of sublingual misoprostol repeated every 4 hours for up to a maximum of 3 doses (group 2). Primary outcome was blood loss assessed by decrease in hematocrit.

Results

Mean decrease in hematocrit at follow-up was significantly greater in group 1 than in group 2 (3.65% ± 1.18% vs 2.69% ± 1.89%, respectively; P = 0.02). There was no difference in efficiency rates between groups 1 and 2 (94.5% vs 92.1%; P = 0.7). Comparable proportions of women experiencing at least one adverse effect after misoprostol administration were reported in groups 1 and 2 (81.7% vs 79.4%; P = 0.75).

Conclusion

Compared with the most widely used regimen in Tunisia (mifepristone-misoprostol), sublingual misoprostol alone induces less blood loss (although not clinically significant); it is less expensive and offers reduced interval time to expulsion.     

Timing of fertility preservation procedures in a cohort of female patients with cancer

Objective

Comparison of time intervals from diagnosis to chemotherapy between patients opting for embryo cryopreservation or ovarian tissue cryopreservation.

Study design

Retrospective analysis.

Setting

University hospital in the Netherlands.

Patients and methods

Thirty-five female patients undergoing fertility preservation procedures before treatment with chemotherapy for cancer. Embryo cryopreservation was performed in 12 patients and ovarian tissue cryopreservation in 23 patients. We investigated differences in time intervals (from diagnosis to start of chemotherapy) between patients opting for embryo cryopreservation and patients opting for ovarian tissue cryopreservation. We calculated time intervals between the moment of diagnosis, the moment of referral, the moment of consultation, the moment of finishing of the fertility preservation procedure and the start of chemotherapy.

Results

The median time between diagnosis and referral (median = 18 days) and between referral and consultation (median = 5 days) was comparable in both groups. A significant difference was found between ovarian tissue cryopreservation and embryo cryopreservation for the time interval between consultation and cryopreservation (p = 0.001). Ovarian tissue cryopreservation was completed for half of the patients within 6 days after consultation with the gynecologist, and the hormonal stimulation for embryo cryopreservation was completed for all patients within four weeks (median = 18 days), with a median of 11 days of hormonal stimulation. A significant difference was found between ovarian tissue cryopreservation and embryo cryopreservation in the time interval between fertility preservation and start of chemotherapy (median = 7 vs 19 days, p = 0.019). In sum, the total duration between diagnosis and chemotherapy was significantly shorter for ovarian tissue cryopreservation patients than for embryo cryopreservation patients (median = 47 vs 69 days, p = 0.042).

Conclusion

Embryo cryopreservation can be performed within the standard timeframe of cancer care in patients with breast cancer receiving adjuvant chemotherapy, but if delay of the start of chemotherapy is harmful, ovarian tissue cryopreservation can be done within one week.