Objective To explore the effectiveness and safety of topical phenytoin for wound healing. Methods We searched MEDLINE (1966 to Oct. 2002), EMBASE (1984 to 2002), The Cochrane Library (Issue 4, 2002), Biological Abstracts (1993 to 1996), Cancerlit (1997 to Sept. 2002), Life Science Collection (1982 to Mar. 1995), International Pharmaceutical Abstracts (1970 to 2002), and CBMdisc (1978 to Jan. 2003). Controlled trials on topical phenytoin for wound healing were identified. The methodological quality of included studies was assessed, and a descriptive analysis was performed. Results Nine studies (507 cases) including 1 randomized controlled trials (RCT) and 8 non-randomized controlled trials were included. These studies were of poor methodological quality. Because there were a variety of etiology of ulcers, differnet interventions in control groups, and different outcome measures, for which meta-analysis was difficult to perform, a descriptive analysis of the results was presented. Most studies showed that topical phenytoin had better effects on improving healthy granulation appearance, increasing complete recovery rate, reducing time for complete recovery, and positive cases of bacterial culture than those of control groups. Mild side effects were observed in only one study.Conclusions The reviewers think that the inclusion studies less rigorous than randomized controlled trials could result in misleading findings.Some well designed randomized controlled trials of topical phenytoin for wound healing are warranted.
ObjectiveTo systematically review the efficacy of closed and open tracheal suction system on the prevention of ventilator-associated pneumonia.MethodsThe Cochrane Library, CNKI, WanFang Data, Airiti Library, PubMed, CINAHL and Proquest databases were electronically searched to collect randomized controlled trials (RCTs) on closed and open tracheal suction system on the prevention of ventilator-associated pneumonia. Two reviewers independently screened literature, extracted data, and assessed the risk bias of included studies. Then, meta-analysis was performed by RevMan 5.3 software.ResultsA total of 11 RCTs involving 1 187 patients were included. The results of meta-analysis showed that compared with open tracheal suction system, closed tracheal suction system was associated with a reduced incidence of ventilator-associated pneumonia (RR=0.55, 95%CI 0.44 to 0.67, P<0.000 01), late-onset ventilator-associated pneumonia (RR=0.47, 95%CI 0.28 to 0.80, P=0.005), length of stay in intensive care unit (MD=−0.85, 95%CI −1.66 to −0.04, P=0.04) and rate of microbial colonization (RR=0.69, 95%CI 0.56 to 0.86, P=0.000 9). However, there were no significant differences between two groups in time to ventilator-associated pneumonia development (MD=0.96, 95%CI −0.21 to 2.12, P=0.11), length of mechanical ventilation (MD=−2.24, 95%CI −4.54 to 0.06, P=0.06), and rate of mortality (RR=0.88, 95%CI 0.73 to 1.05, P=0.15).ConclusionsCurrent evidence shows that compared with open tracheal suction system, closed tracheal suction system can reduce the incidence of ventilator-associated pneumonia and late-onset ventilator-associated pneumonia, shorten the hospital stay in intensive care unit, and reduce rate of microbial colonization. Due to limited quality and quantity of the included studies, more high quality studies are required to verify above conclusions.
To assess the rel iabil ity of diabetic cutaneous ulcer surface area (DCUSA) measurement usingdigital planimetry method (A) and transparency tracing method (B). Methods Images of diabetic cutaneous ulcers from35 inpatients with diabetic skin ulcers from September 2005 to April 2007 were taken by a digital camera once a week or twice a week over a period of 12 weeks, resulting in 305 photographs; the ulcers were traced on a grid with acetate wound tracings, simultaneously. A total of 305 pairs of DCUSA which were calculated respectively throughout digital camera combined with Image J medical imaging software and transparency tracing with grid sheet by two independent observers sequentially were obtained. The intraclass correlation coefficients (ICCs, one-way random effect model) was used as an indicator of chancecorrected agreement to estimate the relative rel iabil ity for the interobserver data. Multiple l inear regression analysis was also used to measure the relationship of these two methods. Results DCUSA obtained from method A and obtained from method B was (4.84 ± 7.73) cm2 and (5.03 ± 7.89) cm2, respectively; no significant difference was found (P gt; 0.05). ICCs was high (ICCs=0.949 for method B and 0.965 for method A), indicating that the relative rel iabil ity for the interobserver was excellent. The method A were highly correlated with measurements obtained from method B (r = 0.957, P lt; 0.05). Conclusion The digital planimetry method described in this study represents a simple, practical, without any wound damage and contamination, and inexpensive technique to accurately evaluate the areas of diabetic cutaneous ulcers. The photographic technique combined with Image J medical imaging software should be considered for wound measurement.
目的:组织瓣修复缺损是头颈部肿瘤切除术中的重要手段和必要环节。本研究总结65例颊癌和口咽癌不同范围组织缺损用局部带蒂组织瓣的修复方法。方法: 回顾2001~2009年我科65例口腔颊癌及口咽癌切除术后选择腭瓣、颏下瓣、面动脉逆行皮瓣、颊脂垫颊肌复合瓣修复颊部及口咽部组织缺损,病变范围和治疗结果。结果: 65例皮瓣中,17例腭瓣全部成活,29例颏下瓣26例全部成活,2例部分坏死,1例表层皮肤坏死, 7例面动脉逆行皮瓣6例全部成活,1例坏死,12例颊脂垫或颊脂垫颊肌复合瓣全部成活11例,1例部分坏死,总成活率96.9％。31例患者术后有不同程度的张口受限,咀嚼和吞咽功能基本正常。结论: 根据颊癌和口咽癌的病变范围决定采用不同的临近带蒂组织瓣修复缺损,修复效果确切,可以明显减少手术创伤和术后并发症,尤其适用于年老及较多基础疾病患者,仍应作为头颈部肿瘤术后缺损修复的重要方法。
ObjectiveTo investigate the evening outpatient service demand in West China Hospital, in order to provide better service. MethodsUsing self-questionnaire, we investigated 1 734 outpatients and the data were analyzed with SPSS 16.0 software. ResultsA total of 90.7% of the surveyed patients reported that it was necessary to have evening outpatient service, 53.1% of the patients were willing to come to the hospital in the morning, and 4.2% prefer to come to the hospital in the evening. ConclusionEvening outpatient service in large general hospitals is getting high social affirmation. It is helpful to those who are inconvenient or unwilling to come to the hospital during day time, and is a complement for day-time outpatient and emergency outpatient service. Consultation time and resource arrangement in the evening outpatient service should conform to the principle of rational allocation for hospital resources.
ObjectiveTo know the life attitude and its influence factors of nursing undergraduates in a school of nursing,so as to provide the theoretical evidence for the exploration of the way of life education. MethodsA cluster sample of 246 nursing undergraduates were asked to complete the survey,who were sampled from grade 2008 to grade 2011 in a University of Sichuan province between Nevember and December 2011.Then we used the way of questionnaire to analyze and research the life attitude and its influence factors of nursing students,and this study mainly used the Life Attitude Scale (LAS) questionnaire which was made by Taiwan scholar Manying Xie. ResultsThe total score of the investigated nursing students'attitude to life was 365.1±43.6,and the total and each level scores were higher than Taiwan college students and the differences were statistically significant (P<0.01).Female students'total score of attitude to life and the existence sense dimension were significantly higher than male students'(P<0.05).The third grade students'score of love and care level had a significant difference with the second grade and the first grade students (P<0.05).Through correlation analysis,nursing students'life attitude and self-rating interpersonal relationship (r=0.256,P=0.000),the situation of families talking about death (r=0.210,P=0.001),whether there was a Dutch act idea (r=0.172,P=0.007),family income (r=0.151,P=0.017),gender (r=0.130,P=0.042) and whether had siblings (r=-0.143,P=0.025) were positively correlated. ConclusionWe should carry out targeted life and death education for nursing students to promote them to establish positive life attitude and value.