Success Rate and Perinatal Outcomes of Selective Reduction by Radiofrequency Ablation in Monochorionic Multiple Pregnancies with a Hydropic Fetus; A Prospective Interventional Single-Arm Study.

BACKGROUND: Selective reduction of the fetus is one of the therapeutic methods in complicated monochorionic twins. The present study aimed to investigate the success rate and perinatal outcomes of selective reduction using radiofrequency ablation (RFA) in monochorionic multiple pregnancies with a hydropic fetus. METHODS: This prospective interventional single-arm study was conducted in a referral hospital from 2017 to 2019. Totally, 27 complicated monochorionic twin and triplet pregnancies underwent RFA to occlude the umbilical vein of the hydropic fetus. The participants were followed until 2 months post-delivery. Procedure success rate, survival rate, gestational age at delivery, and neonatal outcome were evaluated. RESULTS: The umbilical cord in 26 (96.2%) cases was successfully occluded by RFA with no maternal complications. Live birth was within 75%. The mean±SD age at delivery was 34.4±3.83 weeks. The gestational age at delivery in TTTS (twin-to-twin transfusion syndrome)-induced hydrops was significantly lower than the non-TTTS hydrops group (P=0.003). Four cases experienced preterm premature rupture of the membranes (PPROM) before 34 weeks. Of all viable neonates, 8 cases were admitted to the neonatal intensive care unit (NICU). In 2 months follow-up post-delivery, all neonates had normal findings without any adverse outcomes. CONCLUSION: Selective reduction by RFA in complicated monochorionic pregnancies with a hydropic fetus may be a safe method with a high success rate and 100% neonatal survival. This method may be optimal for feticide in non-TTTS hydropic twins.

Clinical value of drainage in the treatment of acute obstructive suppurative cholangitis without X-ray guided / 中国内镜杂志

Objective To investigate the therapeutic value of duodenoscopy in the treatment of acute obstructive suppurative cholangitis without X-ray guided. Methods Clinical data of acute obstructive suppurative cholangitis were collected continuously in our hospital which can be used to analyze the safety and efficacy of duodenoscopy in treatment without X-ray guided. Results 146 patients were successfully treated with ERCP in bile duct cannulation, the successful rate was 93.6 % (146/156), all the patients' bilirubin decreased, the successful rate of endoscopic treatment was 93.6% (146/156), while minor pancreatitis, hyperamylasemia, cholangitis, duodenal perforation and other complications occurred in 18 patients, the incidence rate was 11.5% (18/156). 13 patients infected with obstructive suppurative cholangtis were successfully treated with duodenoscopy without X-ray guided, and the successful rate in bile duct cannulation was 86.7%(13/15), bilirubin decreased in 12 cases, the successful rate in endoscopic treatment was 80.0%(12/15), 3 patients suffered from complications, the incidence rate was 20.0% (3/15). Conclusions The bile duct cannulation technique without X-ray guided has progressed, it can be applied to cure several patients with biliary obstruction, especially in AOSC patients, and pregnant patients, and patients who are not suitable for the X-ray radiation.

Clinical application of prelocalization with ultrasound during internal jugular vein cannulation / 中国医师进修杂志

Objective To evaluate the clinical value and safety of prelocalization with ultrasound during internal jugular vein cannulation. Methods One hundred patients scheduled for internal jugular vein cannulation from February 2009 to April 2010 were divided into two groups by random digits table with 50 cases in each group. Group U patients were performed by ultrasound-prelocalization method and group T patients were performed by traditional technique. The first successful punctures and the first successful catheterization,puncture times,operation time and complications were recorded. Results Compared with group T, puncture times,operation time and complications were lower in group U [(1.0±0.5) times vs.(2.1±1.4) times;(4.5±1.2) min vs.(6.8±1.6) min;0 vs. 12.0%(6/50)](P＜ 0.01 ). The first successful punctures and the first successful catheterization [96.0% (48/50) and 95.8% (46/48)] in group U were obviously higher than those in group T [ 72.0%(36/50) and 77.8% (28/36)] (P ＜ 0.01 ). Two cases were failed in group T. Conclusion Ultrasound-prelocalization technique is simply and practically method for internal jugular vein cannulation under the stable body position.