Objective To investigate the reason and prevention of severe hyponatremia in hysteroscope treatment of the submucous myoma.Method Retrospective study was done on 106 cases of submucous myoma,3 cases with severe hyponatremia after hysteroscope treatment.Results The rate of hyponatremia was 2.8％(3/106),patients appeared nausea and vomiting 1 hour after hysteroscope treatment,blood sodium was lower than 110 mmol/L,volume of distention liquid was 8000-10000 ml,the volume of discharge was 6300-7500 ml.Three patients were treated immediately,1 patient was given sodium lactate Ringer injection and 0.9％ sodium chloride by intravenous drip,and furosemide by discontinuous injection 15 hours later,the hyponatremia was recovery; 2 patients were given 3％ sodium chloride and 15％ potassium chloride by intravenous drip,and furosemide by injection,12 hours later,the hyponatremia were recovery.Conclusion The prevention of severe hyponatremia complication after hysteroscope treatment of the submucous myoma not only need operate carefully but also need take active preventive measures.

The problems of some hospital in medical equipment maintenance management were introduced from the aspects of maintenance time, maintenance record, maintenance service and self maintenance. Some measures were proposed including simplifying maintenance process through PDCA, informatizing maintenance record, cooperating with third-party maintainer and establishing self maintenance team, so that precision and informatized medical equipment management can be realized to maximize the benefit of medical equipment management.

Objective To explore the safety and feasibility of blocking blood flow in interstitial tubal pregnancy treated with laparoscopic opening-taking embryo operation.Methods The clinical data of 98 patients with lump interstitial tubal pregnancies (requesting reserve procreate function) from January 2006 to December 2013 were chosen.Among them,56 patients were in study group (January 2010-December 2013) and 42 patients were in control group (January 2006-December 2009).All patients were treated with opening-taking embryo by laparoscopic operation.In study group,we first blocked the uterine artery and ovarian artery blood supply of pregnancy lump,secondly opened pregnancy lump and stripped gestation sac with hydraulic pressure separation during operation.Whereas,in control group,we opened pregnancy lump and taken out pregnancy tissues according to convention method without blocking blood flow.Operation success rate,operation blood volume,operation time,persistent ectopic pregnancy (PEP) happening rate,fallopian tube unobstructed information,and pregnancy information after operation were compared between two groups.Results In study group,operation success rate was 96.4％,which was significantly higher than that in control group (61.9％) (P ＜0.01) ; operation blood volume was[(20.7 ± 10.4)ml],which was significantly less than that in control group [(60.7 ± 18.4) ml] (P ＜ 0.01) ; operation time [(46.6 ±14.2) min] was significantly shorter than that in control group [(66.5 ± 19.4) min] (P ＜ 0.01) ; there was no PEP in study group,while there were 5 PEPs (11.9％) in control group.Fallopian tube unobstructed rate after operation in study group (76.9％) was significantly higher than that in control group (41.7％) (P ＜ 0.05).Conclusions Application of blocking blood flow in opening-taking embryo by laparoscopic operation on lump interstitial tubal pregnancies is safe and effective.