Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Nov 2022
Review Meta AnalysisCardiovascular and Respiratory Safety of Sedation Strategies Used in Transesophageal Echocardiography: A Systematic Review Incorporating Network Meta-Analysis.
TRANSESOPHAGEAL ECHOCARDIOGRAPHY (TEE) is carried out in various clinical settings, with an increasing importance, and sedation usually is required to perform it. Several sedative agents are available, and the authors aimed to compare the cardiovascular and respiratory safety of the strategies used for sedation in TEE through a systematic review with network meta-analysis (NMA). The MEDLINE, CENTRAL, EMBASE, and PsycInfo databases were searched in December 2020 for randomized clinical trials (RCTs) comparing sedation strategies for patients undergoing TEE. ⋯ Based on the NMA, the drugs with a higher likelihood of decreasing both SBP and HR were dexmedetomidine and midazolam. All of the drugs led to a small decrease (only statistically significant for midazolam) in SpO2, with the systematic use of supplemental O2 in some trials. The risks of hypotension, bradycardia, or desaturation were not significantly different among the evaluated drugs.
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J. Cardiothorac. Vasc. Anesth. · Nov 2022
ReviewHeparin Resistance During Cardiopulmonary Bypass in Adult Cardiac Surgery.
The use of heparin for anticoagulation has changed the face of cardiac surgery by allowing a bloodless and motionless surgical field throughout the introduction of cardiopulmonary bypass (CPB). However, heparin is a drug with complex pharmacologic properties that can cause significant interpatient differences in terms of responsiveness. ⋯ Heparin resistance also has been repeatedly reported in patients infected with COVID-19, which deserves further exploration in this pandemic era. This review aims to examine the variability in heparin potency, underlying mechanisms, and limitations of using ACT for monitoring, as well as provide a framework towards the current management of heparin resistance.