Assisted pressure control ventilation via a mini-tracheostomy tube for postoperative respiratory management of lung cancer patients
| Autor: | Suemasu K, H Horio, H Nomori |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Pulmonary and Respiratory Medicine
Adult Male Lung Neoplasms Respiratory rate medicine.medical_treatment Partial Pressure complex mixtures Models Biological Pneumonectomy Work of breathing Postoperative Complications Tracheostomy pressure control ventilation medicine postoperative pulmonary complications Humans positive airway pressure Respiratory system Tidal volume Aged Work of Breathing Postoperative Care Lung business.industry Pulmonary Gas Exchange Respiratory disease Middle Aged medicine.disease Respiration Artificial Oxygen medicine.anatomical_structure Anesthesia Breathing Female business minitracheostomy tube Respiratory Insufficiency |
| Zdroj: | Respiratory medicine. 94(3) |
| ISSN: | 0954-6111 |
| Popis: | Assisted pressure control ventilation (PCV) via a min-tracheostomy tube (MTT) was conducted to improve gas exchange and reduce the work of breathing of lung cancer patients after surgery.Thirty-two patients with lung cancer underwent lobectomy and were managed postoperatively by assisted PCV via an MTT. On the basis of a simulation study using a lung model for clinical use, we set the inspiratory pressure to 20 cmH2O and inspiratory time to 1.0 sec to produce a 450-ml supported volume via the MTT per breath. The blood gases and respiratory rate of each patient were measured under three sets of conditions: PCV via an MTT transtracheal oxygenation (TTO) via an MTT and a Venturi face mask with the same FiO2. After PCV via an MTT overnight, the blood gases in the room air were measured 2.5 h after withdrawing PCV. In order to determine the effect of PCV via an MTT on gas exchange after PCV withdrawal, 32 other age and sex-matched lung cancer patients, who had undergone lobectomy and oxygenation via a face mask alone after surgery, were used as historical controls.The simulation study showed that the ventilated volume provided by assisted PCV via an MTT was about half that provided via a conventional endotracheal tube, even in the presence of air leakage. The clinical application showed that the ventilated volume obtained with the PCV via an MTT was significantly higher than that with spontaneous breathing (P |
| Databáze: | OpenAIRE |
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