title: [Comparative analysis of two methods of transvaginal multifetal pregnancy reduction].
abstract: OBJECTIVE
  To make a comparatively analysis of the effects of 10% KCl injection into the fatal cardiac area and yolk-sac aspiration on multifetal pregnancy reduction.
  
  
  METHODS
  Twenty-three patients with multifetus were selected in the investigation. Eight of the patients accepted 10% KCl injection into the fatal cardiac area, and 15 of them received yolk-sac aspiration. The average number of punctures, average time of reduction operation, failure rate of operation, abortion rate, and infection rate were observed.
  
  
  RESULTS
  The average time of reduction operation[(2.8 +/- 0.7) min] of aspiration was significantly lower than that of 10% KCl injection [(5.11 +/- 1.35) min] (P < 0.05). The infection rate of yolk-sac aspiration was 6.7%, lower than that of 10% KCl injection (37.5%) (P > 0.05). Cardic area injection showed a higher infection rate, and no significant difference was observed in the average number of punctures, failure rate of operation and abortion rate(P > 0.05).
  
  
  CONCLUSIONS
  Although both yolk-sac aspiration and cardiac area injection were safe and reliable methods for multifetal pregnancy reduction, the former is worth recommending for its shorter operation time heeded and lower infection rate, especially for the multifetal patients within 60 gestation days.
authors.affiliation: Shenyang Reproductive Techniques and Research Center, Shenyang, Liaoning 110006, China.
authors.forename: Ning
authors.initials: N
authors.lastname: Weng
authors.forename: Lifen
authors.initials: L
authors.lastname: Zhao
authors.forename: Yuyan
authors.initials: Y
authors.lastname: Zhou
authors.forename: Jialing
authors.initials: J
authors.lastname: Li
authors.forename: Li
authors.initials: L
authors.lastname: Du
authors.forename: Jing
authors.initials: J
authors.lastname: Su
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D011183:Postoperative Complications / Q000209:etiology; D011189:Potassium Chloride / Q000008:administration & dosage; D011247:Pregnancy; D018607:Pregnancy Reduction, Multifetal / Q000009:adverse effects / Q000379:methods*; D016216:Ultrasonography, Prenatal
chemical_list: D011189:Potassium Chloride