Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · May 2020
Observational StudyAre Serum Potassium and Magnesium Levels Associated with Atrial Fibrillation After Cardiac Surgery?
Potassium and magnesium are frequently administered after cardiac surgery to reduce the risk of atrial fibrillation (AF). The evidence for this practice is unclear. This study was designed to evaluate the relationship between serum potassium and magnesium levels and AF after cardiac surgery. ⋯ Maintaining a serum potassium concentration ≥4.5 mmol/L after cardiac surgery may reduce the incidence of postoperative AF. Magnesium supplementation was associated with an increased risk of postoperative AF. Prospective randomized trials are required to clarify these associations.
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J. Cardiothorac. Vasc. Anesth. · May 2020
Case ReportsA Rapid Development of a Right Ventricular Aneurysm Postmyocardial Infarction.
Myocardial infarctions may cause ventricular aneurysms. Ischemia-induced ventricular changes are more common in the left ventricle owing to the larger vascular supply, greater volume of myocardium, and increased intra-ventricular pressure. ⋯ The authors describe the echocardiographic progression of a right ventricular ischemic aneurysm resulting from an ST-elevated myocardial infarction in a 71- year-old man. In this E-Challenge, the authors will review the echocardiographic findings and pathophysiology of ischemic aneurysms.
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J. Cardiothorac. Vasc. Anesth. · May 2020
Trends and Outcomes of Mechanical Circulatory Support in Peripartum Women, 2002-2014: A Nationwide Inpatient Sample Analysis.
To systematically explore the relationship among the use of mechanical circulatory support (MCS), the timing of placement, and outcomes in pregnancy. ⋯ Similar to trends in the general population, use of MCS has increased in the peripartum period. Women receiving MCS were generally older and had more comorbidities than those not receiving MCS. Increased time to device placement may worsen mortality. Further research will help identify appropriate candidates and factors that improve survival.
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J. Cardiothorac. Vasc. Anesth. · May 2020
Randomized Controlled TrialA Comparison of the Arterial Blood Concentration of Isoflurane During Cardiopulmonary Bypass Between 2 Polypropylene Oxygenators.
The primary objective was to compare arterial blood concentration of isoflurane during cardiopulmonary bypass (CPB) between 2 polypropylene oxygenators of different designs. Secondary objectives were to compare levels of Bispectral Index Score (BIS) during CPB between the 2 oxygenators and to examine the relationships between oxygenator exhaust and arterial blood concentrations of isoflurane and BIS. ⋯ No significant difference in arterial blood concentration of isoflurane or BIS was found between the Inspire 8F (Sorin) and Affinity Fusion (Medtronic) oxygenators. A significant positive correlation was found between arterial blood and oxygenator exhaust concentrations of isoflurane, as well as significant negative correlations between both arterial and oxygenator exhaust concentrations of isoflurane and BIS.