Current opinion in anaesthesiology
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Curr Opin Anaesthesiol · Feb 2016
ReviewPreoxygenation and intraoperative ventilation strategies in obese patients: a comprehensive review.
Obesity along with its pathophysiological changes increases risk of intraoperative and perioperative respiratory complications. The aim of this review is to highlight recent updates in preoxygenation techniques and intraoperative ventilation strategies in obese patients to optimize gas exchange and pulmonary mechanics and reduce pulmonary complications. ⋯ The ideal ventilatory plan for obese patients is indeterminate. A multimodal preoxygenation and intraoperative ventilation plan is helpful in obese patients to reduce perioperative respiratory complications. More studies are needed to identify the role of low tidal volume, positive end-expiratory pressure, and recruitment maneuvers in obese patients undergoing general anesthesia.
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Curr Opin Anaesthesiol · Feb 2016
ReviewPearls and pitfalls in managing right heart failure in cardiac surgery.
To review the recent insights in the evaluation and management of perioperative (RHF). ⋯ An integrated approach for assessing the cardiopulmonary axis combining imaging, hemodynamic and tissue perfusion monitoring is emerging, as particularly helpful in the field. Several developments in the field of temporary right heart support including the pumpless interventional lung assist membrane ventilator are offering new opportunities to support the right-heart pulmonary circulation. Future multicenter studies are needed to develop more effective preventive and therapeutic strategies for RHF.
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Curr Opin Anaesthesiol · Feb 2016
ReviewEchophysiology: the transesophageal echo probe as a noninvasive Swan-Ganz catheter.
In an attempt to make cardiovascular monitoring less invasive and more effective, transesophageal echocardiography is progressively being used in critically ill patients suffering from hemodynamic instability. This review analyses the capacity of transesophageal echocardiography to fully replace the pulmonary artery catheter in the management of hemodynamic impairment, as transesophageal echocardiography similarly allows for the measurement of central venous pressure, pulmonary arterial pressure, pulmonary capillary wedge pressure, pulmonary vascular resistance, stroke volume and cardiac output, and systemic vascular resistance. ⋯ Transesophageal echocardiography has the potential to offer a noninvasive, valid alternative to Swan-Ganz catheters in the hemodynamic assessment of patients in the perioperative period.