Iranian Journal of Public Health 2017. 46(5):634-639.

Short-term Effects of Catheter Pressure and Time Control in Va-cuum Aspiration Abortion for Early High-risk Pregnancies
Lingna SUN, Yan Yu, Xiaoxia QI

Abstract


Background: We aimed to evaluate an approach to induced abortions during early pregnancies that controls the suction pressure and restricts the duration of the procedure.

Methods: Three hundred patients programmed for induced early pregnancy abortions, hospitalized in the Shandong Provincial Maternity & Child care Hospital from October 2013 to October 2015, were enrolled. Patients were randomly assigned to either research or control group. In the research group, operation pressure was controlled at 400 mmHg and operation time in the uterine cavity was kept at less than 75 s. In the control group, pressure ranged from 400-500 mmHg. Clinical variables were recorded for each patient until the fourth month after surgery, correlation and multivariate analyses were carried.

Results: Compared with control group, anesthesia and intervention durations and the suction pressure were significantly lower and the endometrial thickness of the first late follicular phase after operation was significantly larger in the research group (P<0.05). In the first postoperative month, the number of patients who reported menstruation flow decreased by more than 1/3 of its normal volume was significantly lower than that in the control group (P<0.05). In the third postoperative month, the thickness of the late follicular phase endometrium was significantly larger than that in the control group (P<0.001). The mean intraoperative pressure and intrauterine operation duration both influenced the endometrial thickness of follicular phase.

Conclusion: Controlling the suction pressure and time for vacuum aspiration abortions during early pregnancies can reduce the incidence of intrauterine adhesions and better protect the endometrium.

 


Keywords


Vacuum aspiration; High-risk early pregnancy; Short-term effect

Full Text:

PDF

References


Henshaw SK, Singh S, Haas T (1999). The incidence of abortion worldwide. Int Fam Plann Persp, 25(Suppl):S30-8.

Qian X, Tang S, Garner P (2004). Unintended preg-nancy and induced abortion among unmarried women in China: a systematic review. BMC Health Serv Res, 4:1.

Cheng L (2006). Medical abortion in early pregnancy: experience in China. Contraception, 74(1):61-65.

Guiahi M, Davis A: Society of Family Planning (2012). First-trimester abortion in women with medical conditions: release date October 2012 SFP guideline #20122. Contraception, 86(6):622-30.

Norman WV, Bergunder J, Eccles L (2011). Accuracy of gestational age estimated by menstrual dating in women seeking abortion beyond nine weeks. J Obstet Gynaecol Can, 33(3):252-257.

Abdalla HI, Brooks AA, Johnson MR, Kirkland A, Thomas A, Studd JW (1994). Endometrial thickness: a predictor of implantation in ovum recipients? Hum Reprod, 9(2):363-5.

Hooker AB, Lemmers M, Thurkow AL et al (2014). Systematic review and meta-analysis of intrauterine adhesions after miscarriage: prevalence, risk factors and long-term reproductive outcome. Hum Reprod Update, 20(2):262-78.

Cheng Y, Gno X, Li Y, Li S, Qu A, Kang B (2004). Repeat induced abortions and contraceptive practices among unmarried young women seeking an abortion in China. Int J Gynaecol Obstet, 87(2):199-202.

Chen Y, Chang Y, Yao S (2013). Role of angiogenesis in endometrial repair of patients with severe intrauterine adhesion. Int J Clin Exp Pathol, 6(7):1343-1350.

Friedler S, Margalioth EJ, Kafka I, Yaffe H (1993). Incidence of post-abortion intra-uterine adhesions evaluated by hysteroscopy - A prospective study. Hum Reprod, 8(3):442-444.

Römer T (1994). Post-abortion-hysteroscopy--a method for early diagnosis of congenital and acquired intrauterine causes of abortions. Eur J Obstet Gynecol Reprod Biol, 57(3):171-3.

Li L, Nai M, Gao G, Wang L (2016). [Comparison among measures to prevent intrauterine adhesions after artificial abortion]. Zhong Nan Da Xue Xue Bao Yi Xue Ban, 41(9):975-978 (In Chinese).


Refbacks

  • There are currently no refbacks.


Creative Commons Attribution-NonCommercial 3.0

This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.