RESUMO
Presentamos el caso de un varón de 71 años diagnosticado de timoma. Se interviene al paciente mediante timectomía con visión mediante toracoscopia e insuflación del mediastino con dióxido de carbono. Durante el procedimiento, en ventilación unipulmonar, el paciente sufre un deterioro respiratorio importante. Se observa el colapso del pulmón debido al paso del dióxido de carbono del mediastino al tórax contralateral por la apertura de la pleura. Se decide volver a la ventilación bipulmonar, con mejoría de la oxigenación en gasometría arterial, presiones en la vía respiratoria y estabilización de pCO2 y pH. Se pudo mantener el abordaje y la técnica con dióxido de carbono, puesto que no afectó al campo quirúrgico. Esta técnica presenta complicaciones importantes asociadas, y en caso de realizarse estaría indicado hacerlo en ventilación bipulmonar (AU)
The case is presented of a 71 year-old male, diagnosed with a thymoma. A thoracoscopic thymectomy was performed using the carbon dioxide insufflation technique in the mediastinum. During the procedure, while performing one-lung ventilation, the patient's respiration worsened. The contralateral lung had collapsed, as carbon dioxide was travelling from the mediastinum to the thorax through the opened pleura. Two-lung ventilation was decided upon, which clearly improved oxygenation in the arterial gases and airway pressures. Both pH and pCO2 stabilized. The surgical approach and the carbon dioxide technique were continued because 2-lung ventilation did not affect the surgical procedure. This technique has many serious complications and it should always be performed using 2-lung ventilation (AU)
Assuntos
Humanos , Idoso , Timectomia , Toracoscopia/métodos , Anestesia por Inalação/instrumentação , Anestesia por Inalação/métodos , Anestesia por Inalação , Dióxido de Carbono/uso terapêutico , Timoma/tratamento farmacológico , Timoma/cirurgia , Timoma , Anestesiologia/métodos , Anestesiologia/tendências , Volume de Ventilação Pulmonar , Relação Ventilação-Perfusão , Ventilação Pulmonar , Ventilação Pulmonar/fisiologiaRESUMO
The case is presented of a 71 year-old male, diagnosed with a thymoma. A thoracoscopic thymectomy was performed using the carbon dioxide insufflation technique in the mediastinum. During the procedure, while performing one-lung ventilation, the patient's respiration worsened. The contralateral lung had collapsed, as carbon dioxide was travelling from the mediastinum to the thorax through the opened pleura. Two-lung ventilation was decided upon, which clearly improved oxygenation in the arterial gases and airway pressures. Both pH and pCO2 stabilized. The surgical approach and the carbon dioxide technique were continued because 2-lung ventilation did not affect the surgical procedure. This technique has many serious complications and it should always be performed using 2-lung ventilation.
