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Vol. 16. Issue 2.
Pages 122-128 (March - April 2012)
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Vol. 16. Issue 2.
Pages 122-128 (March - April 2012)
Open Access
A survey on pulmonary pathogens and their antibiotic susceptibility among cystic fibrosis patients
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Ghamartaj Khanbabaeea,
Corresponding author
khanbabaeegh@yahoo.com

Corresponding author at: Department of Pediatric Respiratory Diseases, Mofid Children Hospital, Shariati St, Tehran, 15468-15514, Iran.
, Majidreza Akbarizadehb, Aliakbar Sayyaric, Mitra Ashayeri-Panahd, Fatemeh Abdollahgorjie, Kourosh Sheibanif, Nima Rezaeig
a Department of Pediatric Respiratory Diseases, CF Center, Mofid Children Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
b Department of Pediatrics, Zabol University of Medical Sciences, Zabol, Iran
c Department of Pediatric Gastroenterology Diseases, CF Center, Mofid Children Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
d Department of Microbiology, Faculty of Biological Sciences, Shahid Beheshti University, Tehran, Iran
e Clinical Research and Development Center, Mofid Children Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
f Clinical Research and Development Center, Imam Hossein Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
g Research Center for Immunodeficiencies; and Molecular Immunology Research Center, Children's Medical Center, Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Abstract
Objective

This study was performed to investigate frequency and antimicrobial susceptibility of pulmonary pathogens in cystic fibrosis (CF) patients.

Methods

129 pediatric patients with CF were enrolled in this cross-sectional study. Microbiological cultures were performed based on sputum or pharyngeal swabs. Antibiotic susceptibilities of the isolated bacteria were determined by the disk diffusion method.

Results

The main infecting pathogens were Pseudomonas aeruginosa (38.8%), Klebsiella pneumoniae (11.6%) and Staphyloccus areus (9.3%), respectively. The most active antibiotics included rifampin (91.7% susceptibility), vancomycin (85%) and imipenem (83.5%). Emerging resistance against aminoglycosides was observed.

Conclusion

Regarding in vitro susceptibility results, cyclic treatment of long-term oral azithromycin and inhaled tobramycin could prophylactically be applied, and during exacerbations, imipenem or ceftazidime in combination with an aminoglycoside such as amikacin could be considered the drugs of choice.

Keywords:
Cystic fibrosis
Respiratory tract infections
Products with antimicrobial action
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