Résumé
Objective To compare the effects of mammaplasty, non mammaplasty and prosthesis reconstruction in the treatment of quadrant or massive mastectomy. Methods One hundred and twenty patients with segmental or quadrant mastectomy in the First People′s Hospital of Huizhou from February 2015 to December 2016 were selected for the study. The patients were divided into three groups:the mammaplasty group (48 cases),the non mammaplasty group (40 cases),and the prosthesis reconstruction group (32 cases). The patients in the mammaplasty group were treated with quadrant or massive mastectomy, patients in the non mammaplasty group were treated with chest wall fat fascia flap and the prosthesis reconstruction group was treated with the application of the skin flap of the lateral chest wall. The general operation situation of the three groups were recorded,including operation time,indwelling time of drainage tube,hospitalization time and postoperative hospitalization time. The satisfaction and complications of breast reconstruction were compared among the three groups. Results The operation time of the mammaplasty group, non mammaplasty group and prosthesis reconstruction group were (71. 5±18. 4) min,(55. 9±14. 3) min and (89. 7±21. 3) min respectively,there was significant difference among the three groups (F=31.32,P<0.01).The operation time of the mammaplasty group was longer than that of the non mammaplasty group, but less than that of the prosthetic reconstruction group, the difference was statistically significant ( P< 0. 05 ) . The hospitalization time and postoperative hospitalization time in the prosthesis reconstruction group were ( 13. 7 ± 3. 4 ) d and ( 10. 9 ± 2. 6 ) d, mammaplasty group (11. 4±2. 2) d and (8. 6±1. 9) d respectively,non mammaplasty group (11. 3±2) d and (8±1. 8) d respectively. The differences among the 3 groups were statistically significant (F=10. 20,18. 88,P <0. 01) . The postoperative hospitalization time of the prosthesis group was significantly longer than those in the other two groups ( P<0. 05) . The indwelling time of the drainage tube was close in the 3 groups. The overall satisfaction of breast reconstruction in the mammaplasty group, non mammaplasty group and the prosthesis reconstruction group were respectively ( 9. 2 ± 0. 8 ) points, ( 9. 1 ± 0. 6 ) points, ( 7. 9 ± 1. 3 ) points, and the difference was statistically significant ( F=23. 22,P<0. 01) . The satisfaction degrees of breast reconstruction in the mammaplasty group and the prosthesis reconstruction group were equal, higher than that in the non mammaplasty group,the differences were statistically significant ( P<0. 05) . The incidence of wound infection in the mammaplasty group, non mammaplasty group and prosthesis reconstruction group were 10. 4% ( 5/48 ) , 10. 0% (4/40) and 6. 3% (2/32),respectively,the difference was not statistically significant (χ2=1. 29,P=0. 08) . Conclusion In quadrant or massive mastectomy,lateral chest wall fat fascia flap has simple operation and high safety,and the restoration effect is good,which can be widely used in clinical practice.
Résumé
Objective To study the disinfection effect of ozone on the natural bacteria in indoor air and the central air condition ductwork. Methods Ozonizer was installed on the outlet of central air condition main pipeline and when it began to send breeze, ozone was taken to each branch piping and each room. Then, at the vents of pipeline and in the rooms, the quantity of the natural germs was examined before and after disinfection respectively. The death rate was calculated. Results After 60 minutes of ozone disinfection, the death rate of the natural germs at the vents of central air condition was 60%-90%, that of indoor air was -40.00%-71.43%. Conclusion Ozone can effectively kill the natural germs in ductwork of central air condition, but when the concentration of ozone is lower and there are people in the room, the efficiency will decrease.