RELATIONSHIP OF MEAN PLATELET VOLUME WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE AND ITS SEVERITY- AN OBSERVATIONAL STUDY

Background & Objectives: Chronic obstructive pulmonary disease (COPD) is characterized by airflow limitation and inflammation. Mean platelet volume (MPV) may be used as a marker of inflammation. We aimed to study the association between MPV and COPD patients during acute attack and relationship of MPV with severity of COPD by FEV1 (%predicted), BODE Index, PaO2, mMRC grade and 6MWD test. Methods: 100 patients with COPD (50 with acute exacerbation and 50 with stable COPD) and 30 healthy controls were enrolled in the study. Mean platelet volume (MPV), spirometry, arterial blood gases, body mass index, renal function tests and BODE index (body mass index, airflow obstruction,dyspnoea and exercise) were assessed. Level of MPV was compared between cases and controls. Results: Of 100 COPD patients, 87(87%) were male and 13(13%)were female.MPV was significantly higher in COPD patients than control and also higher in acute exacerbation group than stable COPD (p=0.001). Interpretation & Conclusions: In the present study,MPV remain in normal range in all COPD patients, but MPV values were significantly higher in COPD cases compared with control.Increased MPV was associated with acute exacerbation and also increasing with severity of COPD.