Minerva anestesiologica
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Minerva anestesiologica · Aug 2020
Randomized Controlled TrialComparison between the ultrasound-guided erector spinae block and the subcostal approach to the transversus abdominis plane block in obese patients undergoing sleeve gastrectomy; a randomized controlled trial.
Pain control in the morbidly obese has presented as an anesthetic challenge. The aim of this study is to assess the analgesic efficacy of ultrasound guided bilateral erector spinae block compared to bilateral subcostal transversus abdominis plane block. ⋯ Ultrasound-guided single-shot T9 erector spinae plane block lowers postoperative pain scores, and reduces intraoperative and postoperative opioid consumption compared with both the subcostal approach transversus abdominis plane block and the control group in obese patients that had undergone sleeve gastrectomy.
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Intra-abdominal hypertension (IAH) is a common complication in critically ill patients that may lead to multiorgan failure and is associated to worse outcome. Respiratory failure is among the most important consequences of IAH and it is originated by different mechanisms, such as chest wall elastance increase, functional residual capacity reduction, compression atelectasis and lung edema formation through reduction in lymphatic drainage. Many experimental studies showed that total lung capacity and functional residual capacity can be decreased by 40% during abdominal hypertension, while respiratory system and chest wall pressure-volume curves can be significantly shifted downward and to the right. ⋯ The measurement of intra-abdominal pressure and esophageal pressure (as a surrogate of pleural pressure) may be useful in assessing the condition and guiding mechanical ventilation. Positive end-expiratory pressure (PEEP) must be carefully selected to counteract IAH-related diaphragm displacement, but too high PEEP levels are associated with hemodynamic failure. Continuous negative extra-abdominal pressure is a promising approach, but its clinical application needs more investigation.