Objective To analyze the causes of missed diagnosis of sleep apnea hypopnea syndrome ( SAHS) . Methods 42 missed diagnosed cases with SAHS from May 2009 to May 2011 were retrospectively analyzed and related literatures were reviewed. Results The SAHS patients often visited the doctors for complications of SAHS such as hypertension, diabetes mellitus, metabolic syndrome, etc. Clinical misdiagnosis rate was very high. Lack of specific symptoms during the day, complicated morbidities, and insufficient knowledge of SAHS led to the high misdiagnosis rate and the poor treatment effect of patients with SAHS. Conclusion Strengthening the educational propaganda of SAHS, detail medical history collection, and polysomnography monitoring ( PSG) as early as possible can help diagnose SAHS more accurately and reduce missed diagnosis.
Objective To analyse the causes of missed diagnosis in colorectal cancers and improve the early diagnosis. Methods A retrospective analysis was made to investigate the cause of missed diagnosis in 380 cases suffering from colorectal cancers.Results Of the 1 020 patients treated in our hospital in the past ten years (1984-1993), 380 patients were missed diagnosed, with the missed diagnosis rate of 37.3%. The main causes included: ①lacking attention to the early symptoms of colorectal cancers, neglecting the need to conduct certain tests such digital rectal examination and stool occult blood examination, ②delaying of seeking medical advice on the part of the patients, ③being satisfied with the diagnosis and treatment of benign disease, and ④neglecting certain special tests such as enteroscopy and barium enema examination of colon.Conclusion Routine use of rectal touch, occult blood examination and necessary use of special tests such as enteroscopy, barium enema examination of colon in patients suffering from stool change will increase the rate of accurate diagnosis of colorectal cancer.
目的：通过超声对185例肾上腺肿瘤诊断及漏诊、误诊病例分析，寻找影响肾上腺肿瘤超声漏诊及误诊的因素。 方法：本文回顾性分析185例肾上腺肿瘤超声与病理的资料，对超声漏诊和误诊原因进行了分类、归纳和总结。结果：通过185例肾上腺肿瘤的超声检查，超声诊断出肾上腺病变122例，诊断正确率65.95%，明显低于相关文献报道，漏诊57例，误诊6例。漏误诊率(34.05%)，明显高于相关文献报道，综合分析其病理及影像学资料，将漏误诊原因归纳为五种：①左侧肾上腺肿瘤；②小于2.0 cm的肿瘤；③混合性回声的肿瘤；④临床及超声医师对肾上腺肿瘤认识不足；⑤误诊的主要原因是由于肿瘤巨大，造成定位困难。结论：通过对肾上腺肿瘤漏诊及误诊分析，可以提高超声诊断的准确性，降低漏误诊率。
Objective To investigate the reasons of misdiagnosis and missing diagnosis in blunt abdominal trauma (BAT), and to put forward effective preventive measures. Methods Literature on BAT diagnosis in recent years was reviewed. Results Misdiagnosis and missing diagnosis, which can take place in every segment of BAT patients, were still quite common nowadays. Conclusion Detailed case history collecting, faithful medical examination and making good use of assistant examinations can efficiently decrease the misdiagnosis and missing diagnosis rates of BAT patients.