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目的探讨口腔pH值动态变化在预防呼吸机相关性肺炎中的应用效果。方法选取我院2012年11月至2013年11月所收治的60例患者,基于随机数字原则将其分为两组,每组30例。两组患者在行口腔护理操作前后,都对口腔有无异味、口腔黏膜有无异常进行认真观察,将分泌物从患者的口咽部取出,并基于常规微生物化学方法来培养细菌。结果试验组口腔护理前口腔pH值为(5.7±0.5),口腔护理后口腔pH值为(6.9±0.3);对照组口腔护理前口腔pH值为(4.8±0.4),口腔护理后口腔pH值为(5.1±0.5);试验组与对照组的口腔护理后口腔pH值差异有统计学差异(P<0.05)。试验组患者在经过口腔护理后,pH值异常者、口臭、相关性肺炎比例均低于对照组,差异有统计学差异(P<0.05)。结论有效的口腔护理对于临床呼吸机相关性肺炎的预防及口腔pH值的控制都有较为重要的作用,能够起到明显的治疗效果。
Objective To investigate the effect of dynamic changes of oral pH on the prevention of ventilator-associated pneumonia. Methods Sixty patients admitted from November 2012 to November 2013 in our hospital were divided into two groups (30 in each group) based on random number principle. Before and after the operation of oral care, the two groups of patients observed the presence or absence of odor in the oral cavity and the presence or absence of abnormalities in the oral mucosa. The secretions were removed from the oropharynx of the patient and bacteria were cultured based on conventional microbial chemistry. Results Before oral treatment, the oral pH value in the experimental group was (5.7 ± 0.5) and that in the oral care group was (6.9 ± 0.3). In the control group, the oral pH value before oral care was (4.8 ± 0.4) (5.1 ± 0.5). There was significant difference in oral pH value between oral care group and control group (P <0.05). After oral care, the patients in test group had lower pH value, bad breath, and related pneumonia than those in control group. The difference was statistically significant (P <0.05). Conclusion Effective oral care plays an important role in the prevention of clinical ventilator-associated pneumonia and in the control of oral pH, and can play a significant therapeutic effect.