• Narendra Rawat, Navgeet Mathur, Kiran Rawat, Medha Mathur, Rajat Tinna, Rahul Kakkar, and Loonaram Didel.
• Department of General Medicine,Dr. S.N. Medical College, Jodhpur, Rajasthan.
• J Assoc Physicians India. 2018 Oct 1; 66 (10): 40-41.

IntroductionEarly diagnosis of pulmonary embolism can reduce morbidity and motility. D-dimer is well known parameter having high negative prediction value. This study focused on role of D-dimer in early prediction of presence and severity of pulmonary embolism.Material And MethodsThirty patients with clinical suspicion of pulmonary embolism along with high D-dimer value were included in this study. All selected patients underwent computed tomography pulmonary angiography assessment. D- dimer value was correlated with presence and proximity of pulmonary embolism.ResultsOut of thirty selected patients 50% had pulmonary embolism on computed tomography pulmonary angiography assessment. D-dimer value correlated well with presence and proximity of pulmonary embolism.ConclusionD-dimer value more than 4000 ng/ml had high positive prediction value (79%) in suspected clinical cases. Value more than 8000 ng/ml further improve value to nearly 100% in suspected cases.© Journal of the Association of Physicians of India 2011.

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