Department of Colorectal Surgery, Gloucestershire Royal Hospital, Gloucester, GL1 3NN, UK.
Surg Endosc. 2012 Dec;26(12):3616-21. doi: 10.1007/s00464-012-2384-3. Epub 2012 Jun 26.
Magnetic endoscopic imagers (MEIs) are being introduced during colonoscopy, principally for training. They aid recognition and resolution of loops. This has potential to improve technique resulting in increased completion rates and better patients' experience.
To determine whether the use of a MEI improves colonoscopists' performance.
Cohort study.
Endoscopy unit in a district general hospital.
Consecutive patients undergoing colonoscopy during a 33 month period were studied.
Patients underwent colonoscopy with or without the use of a magnetic endoscopic imager.
Patient comfort and colonoscopy completion rates with and without the use of a magnetic endoscopic imager. Other data recorded included sedation and analgesia doses, patient age and gender, bowel preparation quality, antispasmodic dose, time of day, and consciousness level.
A total of 5,879 colonoscopies were performed. A magnetic endoscopic imager was used for 4,873. A greater proportion of patients in the imager group had the lowest discomfort score (56.2 vs. 39.8%, logistic regression; p = 0.005). Doses of midazolam were similar in both groups (1.93 vs. 2.14 mg for imager and nonimager groups respectively). Completion rates were 94.5% with an imager and 91% without (logistic regression; p = 0.088). Logistic regression analysis showed that buscopan improved completion rate but detrimental factors included increasing patient age, discomfort, poor bowel preparation, and an afternoon procedure. Factors not influencing completion included gender, sedation and analgesia doses, and consciousness level. There was no correlation between documented reason for failure and use of the imager.
This was a nonrandomized trial although improved with logistic regression analysis.
Magnetic endoscopic imager use improves patient comfort during colonoscopy but has not been shown to improve completion.
磁内镜成像仪（MEI）在结肠镜检查中被引入，主要用于培训。它们有助于识别和解决肠袢。这有可能改善技术，从而提高完成率和患者的体验。
确定使用 MEI 是否能提高结肠镜检查者的操作水平。
队列研究。
地区综合医院的内镜室。
在 33 个月的时间内连续接受结肠镜检查的患者。
患者接受结肠镜检查，使用或不使用磁内镜成像仪。
使用和不使用磁内镜成像仪时患者的舒适度和结肠镜检查完成率。记录的其他数据包括镇静和镇痛剂量、患者年龄和性别、肠道准备质量、抗痉挛药物剂量、一天中的时间和意识水平。
共进行了 5879 例结肠镜检查。其中 4873 例使用了磁内镜成像仪。在成像仪组中，有更高比例的患者舒适度评分最低（56.2%对 39.8%，逻辑回归；p = 0.005）。两组患者咪达唑仑剂量相似（成像仪组和非成像仪组分别为 1.93 mg 和 2.14 mg）。使用成像仪的完成率为 94.5%，不使用成像仪的完成率为 91%（逻辑回归；p = 0.088）。逻辑回归分析显示，丁溴东莨菪碱可提高完成率，但不利因素包括患者年龄增加、不适、肠道准备不佳和下午进行操作。不影响完成率的因素包括性别、镇静和镇痛剂量以及意识水平。未发现记录的失败原因与使用成像仪之间存在相关性。
这是一项非随机试验，尽管通过逻辑回归分析进行了改进。
使用磁内镜成像仪可提高结肠镜检查过程中的患者舒适度，但尚未显示能提高完成率。
