Comparison of Published Pressure Gradient Symbols and Equations in Mechanics of Breathing

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Abstract:

In the literature of pulmonary medicine we found dismaying diversity of and inconsistency in terms used to describe physiologic pressure gradients. Standardized terms, definitions, symbols, and equations published by the American Physiological Society, the American College of Chest Physicians, the American Thoracic Society, and the American Association for Respiratory Care have not been consistently used. Rather, researchers have often used their own definitions for transpulmonary pressure, transairway pressure, transthoracic pressure, transrespiratory pressure, and transdiaphragmatic pressure. We describe the variety of definitions and equations we found for those terms. We contend that it would benefit researchers, students, clinicians, and educators to define these terms precisely and use them consistently.

Keywords: RESPIRATORY MECHANICS/PHYSIOLOGY; TERMINOLOGY; TRANSAIRWAY PRESSURE; TRANSDIAPHRAGMATIC PRESSURE; TRANSPULMONARY PRESSURE; TRANSRESPIRATORY PRESSURE; TRANSTHORACIC PRESSURE

Document Type: Research Article

Affiliations: 1: Department of Respiratory Therapy Education, College of Health Professions, State University of New York, Upstate Medical University, 750 E Adams Street, Syracuse NY 13210-2375;, Email: wolfed@upstate.edu 2: Department of Respiratory Therapy Education, College of Health Professions, State University of New York, Upstate Medical University, Syracuse, New York

Publication date: December 1, 2006

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