• Fazal Ur Rehman, Muhammad Arslan Ahmed, Kashif Aziz, Mahmooda Jabeen Ashraf, Tazein Amber, and Sumera Aziz Ali.
• Department of Medicine, The Aga Khan University Hospital, Karachi, Pakisan.
• J Coll Physicians Surg Pak. 2021 Mar 1; 31 (3): 322-325.

ObjectiveTo determine the sociodemographic, clinical characteristics, and outcomes of influenza pneumonia patients in tertiary care hospital, Karachi Pakistan.Study DesignA cross-sectional study.Place And Duration Of StudyThe Aga Khan University Hospital Karachi Pakistan from  January 2013 to December 2018.  Methodology: All adult patients who were older than 18 years and suspected to have viral pneumonia were included in the study. Data were abstracted on 105 patients and were entered on preformed proforma after reviewing the files of patients.ResultsNinety-four (89.5%) patients were influenza positive and 15.2% (n=16) had been vaccinated. Around 92.4% (n=97), 81.9% (n=86) and 61.9% (n=65) patients had cough, fever and shortness of breath, respectively; and 63.8% (n=67), 16.2% (n=17), and 2.9% (n=3) patients had consolidation, nodules, and cavitation, respectively. Almost 91.4% (n=96) patients were given treatment and discharged home; however, 7.6% (n=8) died. Procalcitonin, creatinine, HCO3 , lactate, and bilirubin level were increased in 2nd group (mortality group) after 48 hours; however, the results were only significant for HCO3 (p = 0.035).ConclusionInfluenza pneumonia is very common in our population and older people are more likely to be affected by this disease. Patients can be prevented from adverse outcomes and complications, if diagnosed and treated in time. Key Words: Influenza, Clinical characteristics, Outcome, Patients.

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