World Journal of Pharmaceutical
and Medical Research

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Pharmaceutical and Medical Research and Technology
An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)
ISSN 2455-3301
IMPACT FACTOR: 6.842

ICV : 78.6

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Abstract

PRESSURE OF END TIDAL CO 2 VERSUS CLINICAL DIFFERENTIATION OF CARDIAC CAUSES OF DYSPNEA

Dr. Ifra Saeed*, Dr. Muhammad Shaher Yar Khan and Dr. Anwar UL Shakoor Awan

ABSTRACT

Introduction: Acute dyspnea is a common presentation in the Emergency Department and critical care setting. Early differentiation of cardiac causes of dyspnea from pulmonary related causes is of great significance. Clinical data including history and clinical examination may sometimes fail to differentiate the cause of dyspnea. Point of care pressure end tidal CO2 may add more diagnostic accuracy. Objectives: Our study compared the diagnostic accuracy of clinical criteria for diagnosis of heart failure related acute dyspnea as calculated with modified Boston criteria to pressure of end tidal CO2 and to b lines on lung ultrasound. Methods: We conducted a prospective study. Mayo Hospital between December 2015 to February 2017, 250 patients with acute dyspnea were recruited, of whom 25 patients were excluded. 225 patients were subdivided based on final hospital diagnosis into heart failure related acute dyspnea group (n= 118) and pulmonary (asthma/COPD) related acute dyspnea group (n=107). History, clinical examination, standard laboratory tests, chest X-ray, and pressure end tidal Co2 level were collected. Results: Clinical evaluation using modified Boston criteria had sensitivity 85% and specificity of 83% and AUROC 0.96. The pressure of end tidal CO 2 had sensitivity 79% and specificity of 79% and AUROC 0.94. Conclusions: Structured clinical criteria gives accurate differentiation between cardiac related acute dyspnea from pulmonary related acute dyspnea.

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