16. Thử nghiệm phối hợp Colistin và Amikacin trên các chủng Klebsiella pneumoniae kháng Carbapenem

Ngô Văn Quỳnh, Phạm Hồng Nhung

Nội dung chính của bài viết

Tóm tắt

Thử nghiệm đánh giá hiệu quả phối hợp colistin và amikacin in vitro bằng phương pháp checkerboard trên 57 chủng K. pneumoniae kháng carbapenem cho thấy có 11/57 (19%) chủng quan sát thấy tương tác hiệp đồng. Tỉ lệ hiệp đồng của các chủng có MIC amikacin bằng 1, 2, 4, 8, 16, 32 lần lượt là 2/7, 4/14, 1/5, 2/6, 1/17, 1/8. Tỉ lệ hiệp đồng của các chủng có MIC colistin bằng 0,125, 0,25, 0,5, 1, 4, 8, 16, 32 lần lượt là 0/2, 0/11, 5/24, 3/5, 0/1, 1/4, 1/7, 1/3. Phối hợp colistin và amikacin cho thấy khả năng hiệp đồng tốt. Các phối hợp hiệp đồng đều giảm MIC amikacin và colistin về ngưỡng có thể đạt được mục tiêu PK/PD. Tương tác hiệp đồng có xu hướng tăng khi MIC colistin tăng.

Chi tiết bài viết

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