Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Aug 2016
Novel Zero-Heat-Flux Deep Body Temperature Measurement in Lower Extremity Vascular and Cardiac Surgery.
The aim of this study was to compare deep body temperature obtained using a novel noninvasive continuous zero-heat-flux temperature measurement system with core temperatures obtained using conventional methods. ⋯ According to this preliminary study, the deep body temperature measured using the zero-heat-flux system was in good agreement with standard core temperatures during lower extremity vascular and cardiac surgery. However, agreement was questionable during hypothermia below 32°C.
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J. Cardiothorac. Vasc. Anesth. · Aug 2016
Observational StudyPredicting Optimal Insertion Depth of a Left-sided Double-Lumen Endobronchial Tube.
Appropriate placement of the double-lumen endobronchial tube (DLT) is essential for one-lung ventilation. Several formulae based on body height (BH) have been used for estimating the optimal insertion depth of a left-sided DLT. In this study, the authors examined the following 5 formulae for accuracy of prediction: 0.11×BH+10.53 (cm) from Brodsky et al(1); 0.15×BH+3.96 (cm) from Bahk and Oh(2); 0.148×BH+3.8 (cm) from Chow et al;(3) 0.1×BH+12.5 (cm) from Takita et al(4); and 0.1977×BH - 4.2423 (cm) (authors' formula). ⋯ The height-based formula of 170 - 29.5 - 5 - 1 (the insertion depth is 29.5 cm for patients who are 170 cm tall, and the insertion length is increased or decreased by 1 cm for every 5 cm increase or decrease in BH) modified by the equation of 0.1977×BH - 4.2423 is a useful tool to predict the optimal insertion depth in initially blind left-sided DLT insertion.
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J. Cardiothorac. Vasc. Anesth. · Aug 2016
Observational StudyThe Prevalence and Impact of Preoperative Anemia in Patients Undergoing Cardiac Surgery for Rheumatic Heart Disease.
Many observational studies have demonstrated an association between preoperative anemia and adverse outcomes after cardiac surgery. However, there is a paucity of data on the impact of anemia in patients undergoing cardiac surgeries for rheumatic heart disease (RHD). This study was designed to examine the prevalence and impact of preoperative anemia in patients undergoing cardiac surgery for RHD. ⋯ In patients undergoing cardiac surgery for RHD, there was high prevalence of preoperative anemia. Despite higher transfusion rates in moderately anemic patients, they had significantly lower Hb on CPB and in the postoperative period. Perioperative packed cell transfusion was associated significantly with mortality.