| Objective: To explore the application of rotary and negative-pressure abortion apparatuses in induced abortion and make a comparative study.Methodology: This study takes 200 patients who voluntarily demanded termination of pregnancy in the Fourth Hospital of Shijiazhuang City during the first half of 2014 as the subjects. All these patients were given type-B ultrasonic inspection and were definitely diagnosed as having early intrauterine pregnancy, their indications masteredand contraindications excluded. They were randomly divided into two groups: 100 cases in the rotary induced abortion group(experimental group) and 100 cases in the negative pressure induced abortion group(control group). The two groups were observed in their intraoperative blood loss, operation time length, frequency of the suction tube or swirl ring getting in and out of the uterine cavity; duration and amount of postoperative vaginal bleeding; postoperative ultrasound check and menstruation recovery; postoperative complications; the pathological examination of the tissue as the result of the curettage. The effects of the operation of the two groups are compared.Results:1 The maximum amount of bleeding was 23.5ml in the experimental group, and the minimum was 8ml, averaging 15.2±5.3ml, less than that in the control group, which averages 22.6±7.3ml. This difference showed statistical significance, P<0.05; The difference in operation time between the experimental group(3.75±0.65 minutes) and the control group(3.32 ± 0.48 minutes) demonstrated no statistical significance,P>0.05; This is also the case with the difference between the experimental group’s frequency of swirl ring getting in and out of the uterine cavity(3.22±0.14)and the control group’s frequency of suction tube getting in and out of the uterine cavity(3.26±0.21).2 The postoperative vaginal bleeding of the experimental group lasted for 3.7±1.2 days, while the bleeding of the control group lasted for 6.1± 2.1days. Among those of the experimental group, 36 cases are found with the postoperative vaginal bleeding lasting less than 5 days, 55 cases with their bleeding lasting 5-10 days, and 3 cases over 10 days. As to the control group, 14 cases are found with their bleeding lasting for less than 5 days, 63 cases lasting for 5-10 days, and 14 cases over 10 days. The difference of the two groups in the time and amount of vaginal bleeding is statistically significant. The experimental group, with the application of the rotary abortion apparatus, is found to be better than the control group in terms of the time and amount of the postoperative vaginal bleeding.3 The time used to restore their regular menstruation is compared: Both of the two groups, through type-B ultrasonic inspection, are found to have their endometria thickening. However, compared with the experimental group, the control group is found to have a slower endometrial repair. As to the time spent in their restoration of menstruation, 18 subjects of the experimental group restore their menstruation within 30 days, while the number of cases in the control group is only 11. Among those who restore their menstruation after 40 days of the operation, 5 of them are from the experimental group, while 14 are from the control group, with 2 cases of amenorrhea. Therefore, the recovery of the control group is significantly slower than that of the experimental group(P<0.05). The main change in menstrual blood volume has been reflected in the reduction of the amount on the part of the control group. The difference as a result of this comparison has shown statistical significance.(P<0.05)4 Their postoperative complications are also compared: both the two groups had their operations completed smoothly. Neither of the two groups is found to have uterine perforation, or incomplete suction of the embryonic tissue. The experimental group includes one case of incomplete abortion. The control group contains one case of infection, two cases of incomplete abortion, and 2 cases of failure in their restoration of menstruation within 45 days after the operation, with intrauterine adhesion, which was found through hysteroscopy. The difference of postoperative complications between the two groups does not have statistical significance, P>0.05.5 Villi and decidua are visible in both of the two groups, while the myometrial tissue cells are not found. The control group has reported inflammatory cell infiltrationand evident edema in the intercellular substance. But the pathological report from rotary induced abortion group shows less villous edema than the suction group, and the injury caused by the operation is smaller than that of the control group.Conclusion: Rotary Abortion Operation is simple to handle, and does not increase the uterine cavity operation time. It can reduce the intraoperative and postoperative vaginal bleeding time, as well as the chance of endometrial injury. Besides, it makes the postoperative recovery of menstruation faster. Therefore, it can be regarded as a reliable way of abortion besides the suction abortion operation, and is worthy of clinical application. |
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