Objective To study the proper desiccation and the expiry date for humidifier after disinfection, and then decline the incidence rate of infection in hospital. Methods Divided 84 humidifiers into the A and B groups randomly after disinfection, there were 42 humidifiers in the each group. The natural desiccation was used in the A group, the oxygen desiccation was used in the B group. Monitored the humidifiers of the two groups respectively lasted 7 days, and then compare the datum between them. Results The expiry date of the humidifiers which have dried by natural desiccation was longer than that of humidifiers which have dried by oxygen desiccation. Conclusion We should set down the expiry date for humidifier according to the different desiccation and the different seasons.

Two cases of incomplete regression of ventral mesogastrium were reported. Their nomenclature, etiology, symptoms and characteristic roentgenologic findings were discussed in relation to anatomical study. Because of its unique etiology and symptoms, charecteristic roentgenologic findings, and effectual remedy, it is suggested that this disease should be distinguished from "abnormal adhesion of fibrous bands" as an independent anomaly called incomplete regression of ventral mesogastrium. The roentgenological findings were: An incisure was found in the upper portion of pars descendens duodeni. It sank deeply and reduced two thirds of the normal diameter of the intestinal lumen to form an eccentrie intestinal stenosis. The intestinal lumen, near the inner border of the incisure was smooth, and there was no sign of serrated image formed by intestinal mucosa. The part of intestinal lumen was not distended in hypotonic radiography. All the above signs were caused by the traction and binding of the nonregressed mesogastrium.

Background and purpose: With the application of laparoscopy in the liver surgery increasingly widely used, the safety and feasibility of laparoscopic liver resection is gaining recognition gradually. This study aimed to explore the laparoscopic liver resection for the tumor and the feasibility of open liver tumor resection and clinical curative effect. Methods: We retrospectively analysed the clinical data from 37 cases of laparoscopic hepatectomy and 74 patients with open liver resection from Mar. 2015 to Mar. 2016. Measurement data by covariance analysis were obtained, and comparison between groups were made using independent sample with Wilcoxon rank test and statistical value of Z. We collected data including operation time, intra-operative blood loss, post-operative recovery time of gastrointestinal tract, surgical drainage tube after extubation time, length of hospital stay, postoperative complications, hospitalization expenses and other clinical data. Laparoscopic group had 20 males and 17 female aged 18 to 76 (median age 55). Open group had 42 males and 32 females aged 26 to 74 (median age 54). The hepatectomy included ultrasonic knife + unipolar electric coagulation, combined with laparoscopic incision suture. Surgery procedures included 13 cases of local excision in laparoscopic group and 24 cases of liver segment or lobe anatomical resection. Open group had 33 cases of local excision and 41 cases of liver segment or lobe anatomical resection. Results: The average duration of laparoscopic hepatectomy was 149 min (40-204 min). The average duration of open hepatectomy was 142 min (45-190 min). The average intra-operative blood loss was 220 mL (30-570 mL) in laparoscopic group and 360 mL (90-970 mL) in open group. The average length of hospital stay was 4.9 d (3-6 d) in laparoscopic group and 6.8 d (5-9 d) in open group. Gastrointestinal average recovery time was 1.1 days in laparoscopic group and 2.3 days in open group. The average hospitalization expenses were 38760 yuan in laparoscopic group and 39145 yuan in open group. Conclusion:Laparoscopic hepatectomy is a safe, effective and minimally invasive surgery, can be safely used in local, liver segment and half liver resection, worthy of promotion.

Objective:To compare laparoscopic versus laparotomy in the treatment of colorectal cancer liver metastases (CRLM).Methods:The clinical data of 78 consecutive patients with CRLM operated at Department of Hepatic Surgery, Fudan University Shanghai Cancer Center from April 2015 to August 2016 were analyzed retrospectively. There were 52 males and 26 females. The average was (56.8±9.9) years. The patients were divided into the laparoscopic group ( n=26) and laparotomy groups ( n=52). The operation time, intraoperative blood loss, extent of hepatectomy, postoperative liver function and complications were compared between the two groups. The follow-up data was used to compare the long-term survival outcomes. Results:There were no significant differences between the two groups in operation time, intraoperative bleeding volume and extent of hepatectomy ( P>0.05). The percentage of patients who underwent preoperative neoadjuvant chemotherapy in the laparotomy group was significant higher, and the diameter of liver metastasis was significantly larger than that in the laparoscopic group ( P<0.05). On day 1 after operation, the alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels in the laparoscopic group were (502.2±115.3) U/L and (570.4±132.4) U/L, respectively, which were significantly better than those in the laparotomy group (683.9±150.1) U/L and (739.5±230.2) U/L, respectively ( P<0.05). On day 3 after operation, the ALT and AST levels in the laparoscopic group were (263.3±83.3) U/L, (271.4±87.3) U/L, which were still significantly superior than those in the laparotomy group (410.8±128.4) U/L and (489.1±125.6) U/L ( P<0.05). Complications occurred in 4 patients (15.4%) in the laparoscopic group and 19 patients (36.5%) in the laparotomy group, the difference was significant ( P<0.05). The recurrence and extrahepatic metastasis rates of the laparoscopic group were better than those of the laparotomy group, and the survival outcomes were better than the laparotomy group. Conclusion:Laparoscopic surgery was better than laparotomy surgery in the treatment of CRLM. Laparoscopic surgery should be further promoted.