目的:探讨电子支气管镜在肺癌诊断中的价值。方法:对233例支气管镜下诊断肺癌的患者进行分析。结果:电子支气管镜下肺癌的诊断率为63.49%,其中中央型肺癌的诊断率为72.85%,周围型肺癌的诊断率为27.63%,该组病例以老年人多见, 肿瘤多位于叶支气管,右肺57.51%, 左肺42.49%,病理类型为鳞癌45.92%, 小细胞癌22.75%, 腺癌24.03%。电子支气管镜下主要特征:鳞癌以管内增殖型改变为主,表现为新生物形成,阻塞管腔,伴有糜烂、充血、水肿,小细胞癌以增殖型和浸润型为主,可见气管内新生物形成及节结样改变。腺癌以管内增殖型和肿块压迫管腔为主,可见管内新生物形成或支气管呈缝隙样狭窄,甚至闭塞。结论:与周围型肺癌相比电子支气管镜检查对中心型肺癌诊断的准确率较高, 其检查方法简单, 创伤性小, 是正确指导临床医生选择合理治疗方法的一种较好的辅助检查技术。
Peripheral pulmonary lesions (PPLs) are generally considered as lesions in the peripheral one-third of the lung. A computed tompgraphy (CT) guided transthoracic needle aspiration/biopsy or transbronchial approach using a bronchoscope has been the most generally accepted methods. Navigation technique can effectively improve the diagnosis rate of peripheral pulmonary lesions, reduce the incidence of complications, shorten the time of diagnosis, and make the patients get timely and effective treatment.
The present study was to develop and design a new sonography rigid bronchoscopy and corollary vacuum-assisted biopsy device system with less injury and complication. The system combined ultrasonic-probe with ultrasound catheter, a new medical ultrasound technique, and rigid bronchoscopy (RB) which is improved with an auxiliary vacuum-assisted biopsy device. The principle of the device is vacuum suction and rotary knife. The reduced outer diameter of the RB led to less pain and lower complications for the patient. With the help of ultrasonic-probe (30 MHz), lesions and blood vessels can be identified clearly and unintentional puncture and damage to blood vessels can be avoided. Plenty of lesions can be obtained quickly through the vacuum-assisted biopsy device without getting puncture needle in and out repeatedly. The novel endobronchial sonography rigid bronchoscopy and matched vacuum-assisted biopsy device has many remarkable advantages. It can enlarge the applied range of the RB from endobronchial to mediastinal lesions, avoiding unintentional puncture of vessels. Obtaining multiple samples with a higher accuracy rate than that by other sampling techniques, minimizing operation time, alleviating pain and decreasing the complication rate, the system makes up the technical deficiency for the diagnosis and treatment of the mediastinal lesions, to a certain degree.
ObjectiveTo investigate whether liquid-based cytology (LBC) can improve diagnostic value of cytological assessment of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA). MethodsA cohort of 600 cases who underwent EBUS-TBNA from June 2012 to September 2013 was enrolled in this prospective study in West China Hospital. EBUS-TBNA was carried out under local anesthesia and moderate sedation. The procedure was performed with echobronchoscopes. Histological tissues were stained with hematoxylin and eosin for further study. Additional immunohistological analysis was performed for establishing a reliable diagnosis as necessary. Aspirates were smeared on glass slides and separate aspirates were processed by the monolayer SurePath method. ResultsIn total, 480 cases of malignant tumors and 120 cases of benign lesions were confirmed by histological examination. The sensitivity of SurePath liquid-based preparations and conventional smears was 82.1% and 56.0%, and the specificity was 87.5% and 82.5%, respectively. The combined specificity was 100.0%. The positive predictive value of two methods combined was 96.3% and 92.8%, whereas the negative predictive value was 54.9% and 31.9%, respectively. The difference between the two methods was significant (P < 0.05). ConclusionsLBC preparation can improve cytological assessment of EBUS-TBNA. Histological study is necessary when the cytological diagnosis is obscure.
ObjectiveTo assess the methodological quality of guidelines for bronchoscopic alveolar lavage. MethodsCNKI, VIP, WanFang Data, CBM, Web of Science, PubMed, EMbase databases and medlive.cn, the National Guideline Clearinghouse (NGC), the National Guideline International Network (GIN), the Scottish Intercollegiate Guidelines Network (SIGN), the National Institute for Clinical Excellence (NICE), and the World Health Organization (WHO) websites were electronically searched to collect guidelines of bronchoscopic alveolar lavage from inception to December 2020. Two reviewers independently screened literature, extracted data, and assessed the methodological quality of the guidelines by using AGREE Ⅱ tool. ResultsA total of 19 guidelines were included, with 5 from China, 5 from the USA, 3 from Europe, 2 from the UK, 1 from Australia, 1 from Israel, 1 from Spain, and 1 from India. The average standard score rates of the 19 guidelines in the six fields were 50.73% for scope and purpose, 20.02% for participants, 15.13% for formulation rigor, 36.40% for clarity of presentation, 3.51% for applicability, and 22.37% for editorial independence.ConclusionsThe quality of bronchoalveolar lavage guidelines remains relatively low.