Objective:To explore the influence of individual contraceptive intervention on postpartum women, and to provide basis for widely developing postpartum contraception in the future.Methods:A prospective study was adopted from July 2019 to June 2020 in the Affiliated Hospital of Chongqing Population and Family Planning Science and Technology Research Institute and other seven hospitals, a total of 4200 cases hospitalized delivery female were randomly divided into observation group and control group using random number table, each group included 2100 cases. The observation group was given the following intervention measures: strict education on contraception during delivery in hospital and 42 d after delivery; individualized implementation of contraceptive measures; distribution of contraceptive brochures and condoms; join the contraceptive consultation and communication platform. The control was given routine education and monitoring. After 3, 6, 9 and 12 months of postpartum, the patients were followed up by telephone. All of the information about their postpartum sexual life recovery time, menstruation time, contraceptive methods and use, breastfeeding time, one year of accidental pregnancy and outcomes were obtained.Results:Between observation group and control group, there were significant differences in the awareness rate of postpartum contraceptive knowledge [62.96% (1314/2087) vs. 29.35% (606/2065), P<0.001], the rates of standard contraception [91.71% (1914/2087) vs. 44.94% (928/2065), P<0.001], high-effect and long-effect contraception [28.08% (586/2087) vs. 10.02% (207/2065), P<0.001], accidental pregnancy rate [2.06% (43/2087) vs. 8.04% (166/2065), P<0.001] and induced abortion rate within one year after delivery [1.29% (27/2087) vs. 7.36% (152/2065), P<0.001]. Conclusion:Individualized contraceptive intervention as early as possible after delivery is more conducive to these women to grasp the knowledge of contraception, improve the effective contraceptive rate, avoid unwanted pregnancy, timely maintain the pregnancy interval, protect fertility and ensure reproductive health.

Objective:To explore the influence of individual contraceptive intervention on postpartum women, and to provide basis for widely developing postpartum contraception in the future.Methods:A prospective study was adopted from July 2019 to June 2020 in the Affiliated Hospital of Chongqing Population and Family Planning Science and Technology Research Institute and other seven hospitals, a total of 4200 cases hospitalized delivery female were randomly divided into observation group and control group using random number table, each group included 2100 cases. The observation group was given the following intervention measures: strict education on contraception during delivery in hospital and 42 d after delivery; individualized implementation of contraceptive measures; distribution of contraceptive brochures and condoms; join the contraceptive consultation and communication platform. The control was given routine education and monitoring. After 3, 6, 9 and 12 months of postpartum, the patients were followed up by telephone. All of the information about their postpartum sexual life recovery time, menstruation time, contraceptive methods and use, breastfeeding time, one year of accidental pregnancy and outcomes were obtained.Results:Between observation group and control group, there were significant differences in the awareness rate of postpartum contraceptive knowledge [62.96% (1314/2087) vs. 29.35% (606/2065), P<0.001], the rates of standard contraception [91.71% (1914/2087) vs. 44.94% (928/2065), P<0.001], high-effect and long-effect contraception [28.08% (586/2087) vs. 10.02% (207/2065), P<0.001], accidental pregnancy rate [2.06% (43/2087) vs. 8.04% (166/2065), P<0.001] and induced abortion rate within one year after delivery [1.29% (27/2087) vs. 7.36% (152/2065), P<0.001]. Conclusion:Individualized contraceptive intervention as early as possible after delivery is more conducive to these women to grasp the knowledge of contraception, improve the effective contraceptive rate, avoid unwanted pregnancy, timely maintain the pregnancy interval, protect fertility and ensure reproductive health.

To explore the effects of tetramethylpyrazine (TMP) on fibrosis of atrial tissue and atrial fibrillation in a canine model of congestive heart failure (CHF) induced by ventricular tachypacing.