• M T Lush, S Janson-Bjerklie, V K Carrieri, and N Lovejoy.
• Mission Oaks Hospital, Los Gatos, CA.
• Heart Lung. 1988 Sep 1;17(5):528-35.

AbstractOur purpose in this study was to investigate the factors coincident with the occurrence of dyspnea in ventilator-assisted patients. Five alert and oriented patients with pulmonary disease that was restrictive, obstructive, or both, who were receiving mechanical ventilation, participated in this descriptive study. At 4-hour intervals and at complaint of dyspnea, patients quantified the severity of their dyspnea using the visual analogue and modified Borg scales. At each measurement of dyspnea, nurses observed concomitant physiologic and environmental variables. A moderate correlation (r = 0.51, p less than 0.001) was found between the number of events and activities occurring in the intensive care unit environment and the occurrence and severity of dyspnea. The visual analogue scale and modified Borg scale measures of dyspnea were highly correlated (r = 0.92, p less than 0.001) and may be useful tools for assessing dyspnea in patients undergoing mechanical ventilation.

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