Successful Treatment of MDR Acinetobacter baumanniiMeningitis in a Young Adult Patient with Intraventricular and Intravenous Polymyxin B-Tigecycline Based CombinationsAuthors: Md Abdur Rahim1, Himel Kumar Biswas1, Md Abdul Kader Zilani1, Rama Biswas1, Sirazul Haque Ershad1Corresponding Author: Md Abdur Rahim, Specialist, Department of Neuro-ICU, Square Hospitals Ltd., Dhaka, Bangladesh, Email: raselofrmc48@gmail.com