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Postoperative atelectasis: Intermittent positive pressure breathing, incentive spirometry, and face-mask positive end-expiratory pressure. 1981

W L Paul, and J B Downs

Postoperative atelectasis has been treated with inspiratory maneuvers in an attempt to increase functional residual capacity. We compared the effect of intermittent positive pressure breathing (IPPB), incentive spirometry, and 5-cm H2O positive end-expiratory pressure (PEEP) applied with a face mask on the transpulmonary pressure (PL) at the end of expiration of eight patients 24 to 34 hours after aortocoronary bypass graft insertion. Intermittent positive pressure breathing and PEEP increased expiratory PL during therapy. After IPPB, expiratory PL fell below control values and then returned toward, but did not reach, control values After PEEP was discontinued, expiratory PL returned to control values within the next 30 minutes. The results suggest that face-mask PEEP will increase functional residual capacity, that incentive spirometry has little or effect, and that IPPB may decrease lung volume after treatment.

UI MeSH Term Description Entries
D007384 Intermittent Positive-Pressure Breathing Application of positive pressure to the inspiratory phase of spontaneous respiration. IPPB,Inspiratory Positive-Pressure Breathing,Intermittent Positive Pressure Breathing (IPPB),Breathing, Inspiratory Positive-Pressure,Breathing, Intermittent Positive-Pressure,Inspiratory Positive Pressure Breathing,Intermittent Positive Pressure Breathing,Positive-Pressure Breathing, Inspiratory,Positive-Pressure Breathing, Intermittent
D008176 Lung Volume Measurements Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle. Lung Capacities,Lung Volumes,Capacity, Lung,Lung Capacity,Lung Volume,Lung Volume Measurement,Measurement, Lung Volume,Volume, Lung
D008297 Male Males
D008397 Masks Devices that cover the nose and mouth to maintain aseptic conditions often for the prevention of the spread of infections (e.g. COVID19) or to administer inhaled anesthetics or other gases. Mask
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011175 Positive-Pressure Respiration A method of mechanical ventilation in which pressure is maintained to increase the volume of gas remaining in the lungs at the end of expiration, thus reducing the shunting of blood through the lungs and improving gas exchange. Positive End-Expiratory Pressure,Positive-Pressure Ventilation,End-Expiratory Pressure, Positive,End-Expiratory Pressures, Positive,Positive End Expiratory Pressure,Positive End-Expiratory Pressures,Positive Pressure Respiration,Positive Pressure Ventilation,Positive-Pressure Respirations,Positive-Pressure Ventilations,Pressure, Positive End-Expiratory,Pressures, Positive End-Expiratory,Respiration, Positive-Pressure,Respirations, Positive-Pressure,Ventilation, Positive-Pressure,Ventilations, Positive-Pressure
D011184 Postoperative Period The period following a surgical operation. Period, Postoperative,Periods, Postoperative,Postoperative Periods
D012138 Respiratory Therapy Care of patients with deficiencies and abnormalities associated with the cardiopulmonary system. It includes the therapeutic use of medical gases and their administrative apparatus, environmental control systems, humidification, aerosols, ventilatory support, bronchopulmonary drainage and exercise, respiratory rehabilitation, assistance with cardiopulmonary resuscitation, and maintenance of natural, artificial, and mechanical airways. Inhalation Therapy,Therapy, Inhalation,Therapy, Respiratory,Inhalation Therapies,Respiratory Therapies,Therapies, Inhalation,Therapies, Respiratory
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001261 Pulmonary Atelectasis Absence of air in the entire or part of a lung, such as an incompletely inflated neonate lung or a collapsed adult lung. Pulmonary atelectasis can be caused by airway obstruction, lung compression, fibrotic contraction, or other factors. Atelectasis, Congestive,Lung Collapse,Atelectasis,Compression Atelectasis,Compression Pulmonary Atelectasis,Congestive Atelectasis,Congestive Pulmonary Atelectasis,Contraction Pulmonary Atelectasis,Postoperative Pulmonary Atelectasis,Resorption Atelectasis,Resorption Pulmonary Atelectasis,Atelectases,Atelectases, Compression,Atelectases, Compression Pulmonary,Atelectases, Congestive,Atelectases, Congestive Pulmonary,Atelectases, Contraction Pulmonary,Atelectases, Postoperative Pulmonary,Atelectases, Pulmonary,Atelectases, Resorption,Atelectases, Resorption Pulmonary,Atelectasis, Compression,Atelectasis, Compression Pulmonary,Atelectasis, Congestive Pulmonary,Atelectasis, Contraction Pulmonary,Atelectasis, Postoperative Pulmonary,Atelectasis, Pulmonary,Atelectasis, Resorption,Atelectasis, Resorption Pulmonary,Collapse, Lung,Compression Atelectases,Compression Pulmonary Atelectases,Congestive Atelectases,Congestive Pulmonary Atelectases,Contraction Pulmonary Atelectases,Postoperative Pulmonary Atelectases,Pulmonary Atelectases,Pulmonary Atelectases, Compression,Pulmonary Atelectases, Congestive,Pulmonary Atelectases, Contraction,Pulmonary Atelectases, Postoperative,Pulmonary Atelectases, Resorption,Pulmonary Atelectasis, Compression,Pulmonary Atelectasis, Congestive,Pulmonary Atelectasis, Contraction,Pulmonary Atelectasis, Postoperative,Pulmonary Atelectasis, Resorption,Resorption Atelectases,Resorption Pulmonary Atelectases

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