E-ISSN 2149-2530
Original Article
Correlation between the Diagnostic Yield from the Bronchoalveolar Lavage Fluid Analysis and Clinicoradiological Findings in Sarcoidosis
1 Clinic of Pulmonology, Çanakkale State Hospital, Çanakkale, Turkey  
2 Clinic of Pulmonology, University of Health Sciences Süreyyapaşa Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey  
3 Clinic of Radiology, University of Health Sciences Süreyyapaşa Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey  
Turk Thorac J ; 5: -
DOI: 10.5152/TurkThoracJ.2018.180140
Key Words: Bronchoalveolar lavage, lymphocytes, sarcoidosis
Abstract

OBJECTIVES: The diagnosis of sarcoidosis is frequently challenging, requiring a search for less invasive, more reliable diagnostic methods. The bronchoalveolar lavage fluid (BALF) analysis has been used in the differential diagnosis of sarcoidosis for many years with a wide sensitivity and specificity rates. The objective of the study is to investigate whether diagnostic performance of the BALF analysis is altered by clinicoradiological findings of patients with sarcoidosis.

 

MATERIALS AND METHODS: The present study is a retrospective, single-center, observational study, designed in a sarcoidosis outpatient clinic in a training hospital. Patients who had undergone the bronchoalveolar lavage BAL procedure at diagnosis were included in the study. Demographics, clinical and detailed chest X-ray, and high-resolution computed tomography (HRCT) findings at diagnosis were recorded. According to the diagnostic performance, the BALF results were grouped as “diagnostic” and “non-diagnostic,” and recorded parameters were compared between the groups.

 

RESULTS: Considering the BALF analysis of all the 257 patients, the mean lymphocyte ratio was 41±17.5 (5–80), and the mean CD4/CD8 was 5.5±4.7 (0.1–24.7). The BALF analysis was diagnostic in 56% (n=145) of patients. Diagnostic performance of the procedure did not correlate with any of the demographic data, smoking status, spirometric findings, chest X-ray staging, HRCT findings, and tomography scoring. Extrapulmonary involvement was significantly more frequent in the diagnostic group (66% vs. 34%, p=0.006).

 

CONCLUSION: BALF results signal sarcoidosis in more than half of the patients. The diagnostic role of BALF is greater in patients with extrapulmonary involvement.

 

Cite this article as: Tokgöz Akyıl F, Ağca M, Öztürk H, et al. Correlation Between Diagnostic Yield from Bronchoalveolar Lavage Fluid Analysis and Clinicoradiological Findings in Sarcoidosis. Turk Thorac J 2019; DOI: 10.5152/TurkThoracJ.2018.180140.

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