Articles: infusions.
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Anesthesia and analgesia · Aug 2024
Direct Reinfusion of Unwashed Shed Autologous Blood During Thoracoabdominal Aortic Aneurysm Repair: A Retrospective Analysis.
This study's purpose was to assess whether larger volumes of reinfused unwashed shed autologous blood (SAB) were associated with adverse events within 30 days for patients undergoing open thoracoabdominal aortic aneurysm (TAAA) repair. During TAAA repair, our institution uses a system wherein SAB is filtered, but not washed or centrifuged, and then returned to the patient via a rapid-infusion device. By reinfusing SAB, the system preserves the patient's autologous whole blood and may reduce the number of allogenic transfusions required during TAAA repair, but the end-organ effects of reinfusing unwashed SAB have not been extensively evaluated. ⋯ For patients undergoing open TAAA repair, larger reinfusion volumes of unwashed SAB were not associated with greater odds of major early postoperative complications.
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Critical care medicine · Aug 2024
Observational StudyRenin Levels and Angiotensin II Responsiveness in Vasopressor-Dependent Hypotension.
The relationship between renin levels, exposure to renin-angiotensin system (RAS) inhibitors, angiotensin II (ANGII) responsiveness, and outcome in patients with vasopressor-dependent vasodilatory hypotension is unknown. ⋯ In patients with vasopressor-dependent vasodilatory hypotension, recent RAS inhibitor exposure was associated with higher baseline renin levels. Such higher renin levels were then associated with decreased ANGII responsiveness. Higher renin levels at 24 hours despite ANGII infusion were associated with fewer days alive and CRRT-free. These preliminary findings emphasize the importance of the RAS and the role of renin as a biomarker in patients with vasopressor-dependent vasodilatory hypotension.
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Curr Opin Anaesthesiol · Aug 2024
ReviewRemifentanil-induced hyperalgesia: the current state of affairs.
Remifentanil-induced hyperalgesia (RIH) is a part of a general opioid-induced hyperalgesia (OIH) syndrome, seemingly resulting from abrupt cessation of continuous remifentanil infusion at rates equal or exceeding 0.3 mcg/kg/min. The intricate mechanisms of its development are still not completely understood. ⋯ Several ways of prevention and management have been suggested, such as slow withdrawal of remifentanil infusion, the addition of propofol, pretreatment with or concomitant administration of ketamine, buprenorphine, cyclooxygenase-2 inhibitors (NSAIDs), methadone, dexmedetomidine. In clinical and animal studies, these strategies exhibited varying success, and many are still being investigated.
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Aims/Background The combination of lenvatinib and programmed cell death protein 1 (PD-1) inhibitor has demonstrated significant efficacy in treating unresectable hepatocellular carcinoma. Our study aimed to evaluate the safety and efficacy of triple therapy that includes hepatic arterial infusion chemotherapy, lenvatinib and PD-1 inhibitor for treating unresectable hepatocellular carcinoma. Methods Patients with a primary diagnosis of advanced hepatocellular carcinoma between June 2020 and August 2023 were included in this study. ⋯ The pathological complete response was observed in six patients (19.4%) and the pathological partial response rate in eight patients (25.8%). All adverse events occurred in 77.4% of the patients. Conclusion In patients with unresectable hepatocellular carcinoma, the combination of hepatic arterial infusion chemotherapy, lenvatinib, and PD-1 inhibitor exhibits favourable efficacy and well tolerability, achieving a desirable pathological complete response rate while maintaining manageable drug toxicity.
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Anesthesia and analgesia · Jul 2024
Randomized Controlled TrialA Pilot Study of Renin-Guided Angiotensin-II Infusion to Reduce Kidney Stress After Cardiac Surgery.
Vasoplegia is common after cardiac surgery, is associated with hyperreninemia, and can lead to acute kidney stress. We aimed to conduct a pilot study to test the hypothesis that, in vasoplegic cardiac surgery patients, angiotensin-II (AT-II) may not increase kidney stress (measured by [TIMP-2]*[IGFBP7]). ⋯ The infusion of AT-II for 12 hours appears feasible and did not lead to an increase in kidney stress in a high-risk cohort of cardiac surgery patients. These findings support the cautious continued investigation of AT-II as a vasopressor in hyperreninemic cardiac surgery patients.