RESUMO
【Objective】 To compare the clinical application value of controllable negative pressure suction outer sheath and ordinary flexible endoscope outer sheath in flexible ureteroscopic lithotripsy with holmium laser in the treatment of renal calculi less than or equal to 2 cm in diameter. 【Methods】 A total of 85 patients with renal calculi were selected and randomly divided into negative pressure group (n=45) and ordinary group (n=40). The operation time, complications, infection indexes 2 h after operation, adverse reactions, treatment efficacy and stone-clearance rate were compared between the two groups. 【Results】 The sheath was successfully implanted and holmium laser lithotripsy was performed in both groups. The negative pressure group had significantly shorter operation time than the ordinary group [(43.3±4.9) min vs. (66.2±5.8) min, P0.05). The increase of infection indexes (procalcitonin and leukocyte) 2 h after operation were significantly lower in the negative pressure group than in the ordinary group (P<0.05). The efficacy in the negative pressure group was 91.11% (41/45) and the stone-clearance rate was 95.56% (43/45), which were significantly better than those in the ordinary group (72.50% (29/40) and 80% (32/40), respectively. The total incidence of adverse reactions such as renal colic, gross hematuria and ureteral stone street was higher in the ordinary group than in the negative pressure group (P<0.05). 【Conclusions】 Controllable negative pressure suction sheath in flexible ureteroscopic lithotripsy is more effective, as the circulation perfusion keeps the operation field clear, reduces the operation time and improves the stone-clearance rate, while the negative pressure suction lowers the pelvis pressure to prevent infectious urine from entering the blood.
RESUMO
Objective@#To investigate oral health related quality of life and associated factors of adolescents between 12 and 15 years old, and to provide countermeasures and suggestions for oral health promotion of adolescents.@*Methods@#This cross-sectional study recruited 3 840 adolescents aged 12-15 through multi-stage stratified cluster sampling method. The oral clinical examination and oral health questionnaire were conducted. Descriptive analysis, non-parametric testing and logistic regression analysis were used to analyze the oral health-related quality of life and associated factors.@*Results@#Oral problems showed moderate to severe impact on quality of life,especially on eating (27.1%). Ordinal Logistic regression analysis showed that low sugar intake frequency, few teeth with gingival bleeding, no history of dental pain in the past 12 months,no history of tooth injuries, and administrative region of residence (Nanhai, Shunde) were associated with higher oral health-related quality of life,(OR=0.6-0.8，P<0.05).@*Conclusion@#The oral health-related quality of life of adolescents in Foshan was slightly better than the average national level. It is recommended to accurately formulate and ensure the full implementation of oral public health measures based on the comprehensive analysis of the local area, and combine various efforts to strengthen education on reducing excessive intake of sugar, prevent gingival bleeding, relieve and treat toothache in time, pay attention to adolescents with histories of dental trauma, and update the concepts of receiving oral health examination for the adolescents themselves, parents and teachers, and help adolescents develop the habit of regular oral examinations.