Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P＜0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P＞0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P＜0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P＜0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P＞0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.

Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P＜0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P＞0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P＜0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P＜0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P＞0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.

Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P＜0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P＞0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P＜0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P＜0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P＞0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.

Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P＜0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P＞0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P＜0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P＜0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P＞0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.

Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P＜0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P＞0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P＜0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P＜0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P＞0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.

Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P＜0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P＞0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P＜0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P＜0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P＞0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.

Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P＜0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P＞0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P＜0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P＜0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P＞0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.

Objective:To explore the application value of uterine net-like compression suture in postpartum hemorrhage(PPH).Methods:The data of 84 refractory PPH patients from six hospitals specialized in children and women in Chengdu from January 2015 to March 2023 were retrospectively analyzed.They were divided into two groups according to the surgical methods:41 cases of B-Lynch suture(control group)and 43 cases of uterine net-like compression suture(observation group).The clinical efficacy of the two methods was observed,and the perioperative indicators and clinical outcomes were compared between the two groups.Results:①31 cases in the control group and 42 cases in the observation group,were successfully hemostatic and retained the uterus,with effective rates of 75.61%and 97.67%,respectively.The difference was statistically significant(P＜0.01).②There were no significant differences in the rates of all preoperative diagnosis and preoperative blood loss between the two groups(P＞0.05);in the observation group,the intraoperative and 2 h postoperative blood loss,the units of postoperative blood transfusion,the incidence rate of requiring postoperative intensive care and the hospitalization days,were less than those in the control group(P＜0.01).③During a follow-up period of 10-48 months,all 73 pa-tients without hysterectomy recovered menstrual cycles within 12 months after the surgery.Thirteen cases experi-enced reduced menstrual flow with cycle changes in the control group(41.94%),while 6 cases experienced in the observation group(14.29%),and the difference was statistically significant(P＜0.01);5 cases(16.13%)had sub-sequent pregnancy in the control group,while 12 cases(28.57%)had in the other,with no significant difference(P＞0.05).Conclusions:The two uterine sutures for refractory PPH have both achieved good clinical curative effects,and the uterine net-like compression suture shows therapeutic advantages on intraoperative and postoper-ative blood loss,postoperative blood transfusion,and hospitalization days.The uterine net-like compression suture has no special requirements for medical devices or materials,and thus has important popularization and applica-tion value for primary obstetrics with limited medical conditions.

Objective:To evaluate the effect of pedicled omentum packing of pelvic floor after laparoscopic Miles precedure in the prevention of short-term postoperative complications.Methods:Seventy-two patients undergoing laparoscopic combined abdominal perineal resection for rectal cancer at He'nan Tumor Hospital from Jan 2014 to Aug 2021 were retrospectively reviewed. The observation group underwent pelvic floor reconstruction with pedicled omentum, while in control group the pelvic floor was leaving unconstructed.Results:There was no intestinal obstruction in the observation group. There were 5 cases of intestinal obstruction in the control group. Three were recovered by conservative treatment, 2 cases underwent laparotomy and 1 case underwent anastomosis between small intestine and small intestine. The incidence of intestinal obstruction between 2 groups was statistically different (0 vs. 14%, χ2=5.083, P=0.024 ). The operation time, hospital stay between the two groups were statistically different [(195±13) min vs. (159±9) min, t=10.047, P=0.000; (11.9±0.9) d vs. (14.9±2.1) d, t=-5.996, P=0.000 ). Between the two groups, there were no significant differences in the incidence of presacral infection , pulmonary infection, venous thrombosis and intraoperative blood loss (all P>0.05) . Conclusion:Pedicled greater omentum used in pelvic floor reconstruction after laparoscopic Miles procedure reduces the incidence of short-term postoperative complications, especially of intestinal obstruction.

Objective To study the value of whole tumors T2WI gray histogram analysis for differential diagnosis of three commonly presented pediatric posterior fossa tumors. Methods A retrospective analysis was conducted to compare brain MRI examination and pathology diagnosis of 133 cases of posterior fossa tumors in pediatric patients in our hospital.Among them, there were 49 cases of ependymoma(there were 25 males and 24 females), 36 cases of astrocytoma(WHO grade Ⅰ)(there were 19 males and 17 females), 48 cases of medulloblastoma(there were 36 males and 12 females),aged 1 to 14 years old, with an average (7±2) years old. Respectively draw the region of interest (ROI) in the T2 MR transaxial images of three groups on each layer of tumor level by using Mazda software and analyze the whole tumors gray histogram, including mean,variance, kurtosis,skewness, perc.01%,perc.10%,perc.50%,perc.90% and perc.99%.The histogram parameters of the three groups were not normally distributed. The Kruskal-Wallis test was used to compare the three groups. Bonferroni test was used to compare the two groups to find out statistical significance of each parameter. Results Through histogram analysis of 9 parameters, these 9 parameters were statistically significant (all P <0.05),including mean,variance,kurtosis,skewness, perc.01%,perc.10%,perc.50%,perc.90% and perc.99%. The sensitivity of skewness to differentiate ependymoma and the astrocytoma was 69.4％, the specificity was 77.8％, the area under the curve was 0.744, and the best cut-off value was-0.08. The sensitivity of kurtosis to differentiate astrocytoma and the medulloblastoma was 95.8％, the specificity was 97.2％ and the area under the curve was 0.972, the cut-off was 1.68. The sensitivity of kurtosis to differentiate ependymoma and the medulloblastoma was 91.7％, the specificity was 89.8％and the area under the curve was 0.932,the cut-off was 1.90.They had a high identification efficiency. Conclusions The T2WI gray histogram analysis based whole tumors is helpful for the dignosis of three types of pediatric posterior fossa tumors. Skewness has a high diagnostic efficiency to differentiate ependymoma and the astrocytoma. Kurtosis has a high diagnostic efficiency to differentiate ependymoma and the medulloblastoma. Kurtosis has a high diagnostic efficiency to differentiate ependymoma and medulloblastoma.