Risk factors in ectopic pregnancy and differences between adults and adolescents, is consanguinity important?

Ectopic pregnancy at the Gambian Tertiary hospital

BACKGROUND/AIMS

Ectopic pregnancy is a gynaecological emergency with significant burden of maternal mortality and morbidity in the tropics. The incidence reported in the literature range from 1:60 to 1:250 pregnancies. The aim was to determine incidence and risk factors of ectopic pregnancy in the Gambia.

METHODOLOGY

A longitudinal study of ectopic pregnancy at Gambian tertiary hospital from January 2016 to April 2018. Data was collected from patients' folders, entered into SPSS version 20 and analysed with descriptive statistics. The test of variation and significance was by ANOVA and Chi-square respectively with error margin set at 0.05 and confidence interval of 95%.

RESULTS

A total number of 2562 pregnancies were recorded, 43 were ectopic pregnancies. The estimated incidence was 0.2%. Majority of the patients were between 26 - 35 years (56%), primiparous (32%), heterogeneous marriage (82%) and housewives (86%). Occupation was not associated with ruptured or unruptured ectopic pregnancy (p-0.421). Low parity was associated with more ectopic pregnancy than high parity (p-0.001). The commonest clinical feature was abdominal pain (65.1%), whilst the most prominent risk factors were pelvic inflammatory disease (27.9%) and previous abortion (23.3%). Ectopic pregnancy was seasonal.

CONCLUSION

The incidence rate of 0.2% was in the range reported in the literature. Low parity, previous abortion and pelvic inflammatory disease were the risk factors.

Prediction of recurrent ectopic pregnancy: A five-year follow-up cohort study

OBJECTIVE

To evaluate the value of different clinical risk factors in the prediction of recurrent ectopic pregnancies (REP).

STUDY DESIGN

This cohort study was carried out at a tertiary-care maternity hospital in Saudi Arabia, between January 2010 and June 2017. All women with a primary ectopic pregnancy (EP) were consecutively recruited, thoroughly assessed and followed up for a minimum duration of five-years (5.6 ± 0.61 years) to diagnose the nature and location of the subsequent pregnancies. The primary outcome measure was the occurrence of REP, while the secondary outcomes included intrauterine pregnancy, the pregnancy of unknown location and infertility rates.

RESULTS

A total of 272 women with a primary ectopic pregnancy (EP) were initially recruited, 217 women were included in the final analysis, among them 41 (18.9%) women had REP. Univariate analysis showed that women who subsequently developed REP had more prevalent prior miscarriages, evacuation of retained products of conception (ERPC), pelvic inflammatory disease (PID) and consanguinity, they also had lower hemoglobin levels at the time of primary EP, and lower prevalence of surgical treatment. Among the 143 surgically treated cases, salpingectomy, when compared to salpingostomy, and laparoscopy, when compared with laparotomy, were found to be associated with a lower risk of REP [RR = 0.32 (95% CI, 0.13-0.77) and 0.40 (95% CI, 0.18-0.86) respectively]. The occurrence of a subsequent delivery at any time after the primary EP was protective against REP [RR = 0.39 (95% CI, 0.22-0.68)], this protection is increased by almost nine folds if this delivery occurred at the descendant pregnancy [RR = 0.04 (95% CI, 0.01-0.17)]. Multivariable binary logistic regression revealed that prior PID, treatment modality and presenting hemoglobin level were independent predictors of REP. Receiver operating characteristic (ROC) curve was plotted using the predicted probability values derived from the multivariable binary logistic regression model, the area under the ROC curve was 0.792 (95% CI, 0.732-0.844).

CONCLUSION

Careful consideration of primary ectopic pregnancy data is a valuable tool to predict the potential risk of recurrence in the future.

Increased incidence of ectopic pregnancy after in vitro fertilization in women with decreased ovarian reserve

The incidence of ectopic pregnancy after assisted reproductive technology is increased approximately 2.5-5-fold compared with natural conceptions.Strategies were used to decrease the incidence of ectopic pregnancy, but ectopic pregnancy still occurs. In the present study, women were selected with decreased ovarian reserve (defined as FSH > 10 IU/L) aged 20 to 38 years who underwent IVF-ET between 2009 and 2014. These 2,061 women were age-matched with an equal number of women with normal ovarian reserve (defined as FSH ≤ 10 IU/L). During cycles following fresh embryo transfer, 93 patients were diagnosed with ectopic pregnancy. The incidence of ectopic pregnancy in clinical pregnancies was significantly higher in the decreased ovarian reserve than in the normal ovarian reserve group (5.51% vs. 2.99%). After adjusting for confounding factors, the incidence of ectopic pregnancy was significantly associated with decreased ovarian reserve. Our results showed that decreased ovarian reserve is an independent risk factor for ectopic pregnancy after in vitro fertilization-embryo transfer.