Showing 2 results for Bronchoalveolar Lavage
Ebrahim Salehifar, Siavash Abed, Ebrahim Mirzaei, Shamsi Kalhor, Gohar Eslami, Shahram Ala, Masoud Alyali, Ali Sharifpour,
Volume 21, Issue 1 (2-2012)
Abstract
Background and purpose: Hospital-acquired pneumonia (HAP) is the most commonly-acquired infection in patients in intensive care units and related to a high mortality rate. Due to differences in type of microorganisms and their resistance pattern, this study was conducted to determine profile of microorganisms and their resistance pattern for initiation of more effective empirical therapy.
Materials and methods: All patients admitted to three intensive care units (ICUs) of Imam Khomeini Hospital between January 2011 and August2012 were studied prospectively for the occurrence of Sample collection for microbiological analysis was done by ETA ((endotracheal aspiration)) and BAL (bronchoalveolar lavage) methods. Antimicrobialsusceptibility test were determined by “Disk Diffusion” and “Broth Dilution”methods according to CLSI (Clinical and Laboratory Standards Institute) guidelines.
Results: Three hundred and eight patients from three ICUs were included in the study. Incidence of nosocomial pneumonia was 11.4%, including 91.4% VAP (ventilator-associated pneumonia) and 8.6% Non-VAP. The most common microorganisms isolated wasAcinetobacterspp (22%) and Staphylococcus aureus (14.6%), respectively. Thirty percent of Acinetobacterspp were resistant to all antimicrobial agents. Ceftazidime was the most effective antibiotic (rate of Resistance 22.2%). All isolated Acinetobacters were resistant to ciprofloxacin and ceftriaxone. Regarding the Staphylococcus aureus isolates, 50% and 33.3% were resistant to vancomycin with “Disk Diffusion” and Broth Dilution” respectively.
Conclusion: Due to high prevalence of Acinetobacter spp. andstapylococusaureus (14.6%), based on the culture/sensitivity results, the most effective antibiotics was Ceftazidime, Tobramycin and Ofloxacin. Ceftriaxone and Ciprofloxacin should not be used until their efficacy would be documented in the future studies.
Mohammad Reza Jabbari Amiri, Mahdi Abastabar, Tahereh Shokohi, Masoud Aliali, Sasan Saber, , , , , ,
Volume 24, Issue 122 (3-2015)
Abstract
Background and purpose: Respiratory failures are common diseases among different populations. Pneumocystis jirovecii colonization causes respiratory failure in children and adults with AIDS and patients with predisposing factors of immunosuppression including malignancies, organ transplant, inherited immune deficiencies and immunosuppressive agents. The aim of this study was to evaluate the efficacy of three staining methods including Calcofluor White, Giemsa and Gomori Methenamine Silver in identification of Pneumosystis colonization using Bronchoalveolar lavage (BAL).
Materials and methods: A cross sectional descriptive study was performed in 350 patients with respiratory failure who referred to Tehran Shariati Hospital and Sari Imam Khomeini Hospital during August 2013 to September 2014. Totally, 322 BAL samples, 26 induced sputa and 2 samples of sinus washing were evaluated for Pneumocystis jirovecii colonization after staining with the three specific staining methods. Data was then analyzed in SPSS V.16.
Results: The patients were 41.2% female and 58.8% male. The mean age of patients was 52 ± 4 years. Calcofluor White staining showed Pneumocystis jirovecii colonization in three patients (0.86%).
Conclusion: In this study, Calcofluor White staining presented higher efficacy in identifying Pneumocystis jirovecii in BAL samples compared to other two microscopic procedures.
