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Melvin L. Morganroth, MD; Jacqueline L. Morganroth, RN; Louise M. Nett, RN, RRT; Thomas L. Petty, MD

Arch Intern Med. 1984;144(5):1012-1016.

Abstract
• We retrospectively studied 11 instances of patients requiring prolonged mechanical ventilation. Their spontaneous ventilatory measurements were not useful in judging their ability to wean, since these measurements did not change from the period of unsuccessful weaning to the period of progressive weaning from the ventilator. An adverse factor score and a ventilator score were created to evaluate underlying medical and respiratory problems related to ability to wean. Each score and the sum of the two scores separated patients between unsuccessful and successful weaning periods. We also found that the course and the duration of the entire weaning process could be predicted once progressive weaning had begun. We conclude that the adverse factor score and ventilator score correlate with the ability of patients receiving prolonged mechanical ventilation to wean.

(Arch Intern Med 1984;144:1012-1016)

Author Affiliations
From the Division of Pulmonary Sciences (Drs Morganroth and Petty and Mss Morganroth and Nett) and Webb Waring Lung Institute (Dr Petty), University of Colorado Health Sciences Center, Denver.

Footnotes
Accepted for publication Oct 28, 1983.

Read before the American Thoracic Society, Kansas City, Mo, May 10, 1983.

Reprint requests to Division of Pulmonary Diseases, C273, University of Colorado Health Sciences Center, 4200 E Ninth Ave, Denver, CO 80262 (Dr M. Morganroth).

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