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Belman 等提出刺激性肺量计是一种广泛用于预防术后肺部合并症的方法,但其效果尚缺科学证据。正常人每小时应吸入肺总量几次,如抑制这种深呼吸,很快便会导致肺不张,剖腹术后患者不行深呼吸,则20～40%发生肺不张。几年前作者作了一系列研究试验,假设肺不张合并症是由于腹式呼吸引起,因此它能通过经常深吸气预防。为了进行这些研究,作者设计了一种器械,名叫刺激性肺量计,它可使患者打开声门持续深吸气、并可测定其呼吸量和频率。作者随机研究了150例患者,清醒时患者每小时行10次深吸气锻炼,剖腹术后肺部合并症便可以从27%减少至9%(p<0.02)。手术后行规律性深吸气的其他研究,不管是否用刺激性肺量计鼓励深呼吸或以深呼吸作为积极胸部物理治疗计划的一部分,也有同样结
Belman et al proposed stimulating spirometry is a widely used method to prevent postoperative pulmonary complications, but its effect is still lack of scientific evidence. Normal people should inhale the total number of lungs several times per hour, such as inhibition of this deep breath, will soon lead to atelectasis, laparotomy patients do not take a deep breath, then 20 to 40% of atelectasis. A few years ago the authors made a series of studies that hypothesized that atelectasis was caused by abdominal breathing and that therefore it could be prevented by frequent deep inspiration. For these studies, the authors designed a device called the irritating spirometer that allows the patient to open the glottis to continuously take a deep inspiration and measure their respiration and frequency. The authors randomly studied 150 patients who underwent deep-breathing exercise 10 times per hour for conscious patients. The comorbidity after pneumoperitoneum was reduced from 27% to 9% (p <0.02). Other studies of regular deep inspiration following surgery, whether inspired by deep breaths with an irritating spirometer or as part of a positive chest physical therapy program, have the same knot