Journal of cardiothoracic and vascular anesthesia
-
J. Cardiothorac. Vasc. Anesth. · Apr 2001
Clinical TrialThe relationship between tracheal width and left bronchial width: Implications for left-sided double-lumen tube selection.
To determine if there is a relationship between tracheal width (TW) and left bronchial width (LBW). ⋯ LBW is proportional to TW. If LBW cannot be measured directly but TW can, the ratio of LBW to TW can be used to predict LBW. An appropriate-sized left double-lumen tube can then be selected for the patient.
-
J. Cardiothorac. Vasc. Anesth. · Apr 2001
Clinical TrialInhaled nitric oxide administration during one-lung ventilation in patients undergoing thoracic surgery.
To evaluate the effects of inhaled nitric oxide (iNO) on hemodynamics and oxygenation during one-lung ventilation (OLV) in the lateral decubitus position in patients undergoing elective thoracic surgery. ⋯ Inhaled NO administration neither significantly decreased mean pulmonary arterial pressure in patients with normal pulmonary artery pressure nor improved oxygenation in nonhypoxic patients. Nevertheless, inhaled NO is effective in patients with pulmonary hypertension and hypoxemia during OLV.
-
J. Cardiothorac. Vasc. Anesth. · Apr 2001
Flow dependency of error in thermodilution measurement of cardiac output during acute tricuspid regurgitation.
To evaluate the effect of variable degrees of tricuspid regurgitation on thermodilution cardiac output measurements during changes in venous return. ⋯ These data show that acute tricuspid regurgitation may produce underestimation of cardiac output by thermodilution when flow is relatively high, produce overestimation when flow is relatively low, or have minimal effect when flow is in the midrange.
-
J. Cardiothorac. Vasc. Anesth. · Feb 2001
Another point of view on the mechanism of thrombin generation during cardiopulmonary bypass: role of tissue factor pathway inhibitor.
To determine the role of tissue factor and tissue factor pathway inhibitor (TFPI) in coagulation activation during cardiopulmonary bypass (CPB). ⋯ These data indicate that TFPI release by heparin probably has an important role in the suppression of the tissue factor-dependent coagulation pathway during CPB. These changes occur along with ongoing thrombin generation and its activation. Either insufficient prevention of thrombin generation by TFPI or indirect activation of the intrinsic coagulation pathway occurs during CPB.