{"title":"右美托咪定可改善脓毒性休克初期复苏患者的微循环变化","authors":"Jingyuan Xu, Yeming Wang, Chang Shu, Wei Chang, Fengmei Guo","doi":"10.1177/08850666241267860","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>The study was to investigate the effects of dexmedetomidine on microcirculation in patients with early septic shock despite initial resuscitation.</p><p><strong>Methods: </strong>This was a single-center prospective study. Patients with early septic shock despite initial fluid resuscitation who still required norepinephrine to maintain target arterial pressure were enrolled. Hemodynamic and gas analysis variables, sublingual microcirculatory parameters were measured at baseline, and during the infusion of dexmedetomidine for 1 h (0.7mcg/kg/h). To elucidate the possible mechanisms of the effect of dexmedetomidine on microcirculation, after interim analysis, the dose-effect relationship of dexmedetomidine on microcirculation and catecholamine level were investigated at baseline, 1h after stabilization at different doses of dexmedetomidine (0.7 and 0.3 mcg/kg/h), and 2h after dexmedetomidine cessation.</p><p><strong>Results: </strong>Forty-four patients with septic shock were enrolled after initial resuscitation. Compared with baseline, total and perfused vascular densities were statistically increased after infusion of dexmedetomidine, which was correlated with the dose of dexmedetomidine. During dexmedetomidine infusion, plasma norepinephrine, and dopamine level were significantly decreased. Changes in plasma norepinephrine level contributed to dexmedetomidine infusion were well correlated with changes in total and perfused vascular densities.</p><p><strong>Conclusions: </strong>In adult patients with resuscitated septic shock, dexmedetomidine improved microcirculation, which might be associated with plasma catecholamine level. However, double-blinded large sample studies should be performed to verify the results.</p><p><p><b>Trial registration:</b> Clinicaltrials.gov NCT02270281. Registered October 16, 2014.</p>","PeriodicalId":16307,"journal":{"name":"Journal of Intensive Care Medicine","volume":null,"pages":null},"PeriodicalIF":3.0000,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dexmedetomidine Improves Microcirculatory Alterations in Patients With Initial Resuscitated Septic Shock.\",\"authors\":\"Jingyuan Xu, Yeming Wang, Chang Shu, Wei Chang, Fengmei Guo\",\"doi\":\"10.1177/08850666241267860\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>The study was to investigate the effects of dexmedetomidine on microcirculation in patients with early septic shock despite initial resuscitation.</p><p><strong>Methods: </strong>This was a single-center prospective study. Patients with early septic shock despite initial fluid resuscitation who still required norepinephrine to maintain target arterial pressure were enrolled. Hemodynamic and gas analysis variables, sublingual microcirculatory parameters were measured at baseline, and during the infusion of dexmedetomidine for 1 h (0.7mcg/kg/h). To elucidate the possible mechanisms of the effect of dexmedetomidine on microcirculation, after interim analysis, the dose-effect relationship of dexmedetomidine on microcirculation and catecholamine level were investigated at baseline, 1h after stabilization at different doses of dexmedetomidine (0.7 and 0.3 mcg/kg/h), and 2h after dexmedetomidine cessation.</p><p><strong>Results: </strong>Forty-four patients with septic shock were enrolled after initial resuscitation. Compared with baseline, total and perfused vascular densities were statistically increased after infusion of dexmedetomidine, which was correlated with the dose of dexmedetomidine. During dexmedetomidine infusion, plasma norepinephrine, and dopamine level were significantly decreased. Changes in plasma norepinephrine level contributed to dexmedetomidine infusion were well correlated with changes in total and perfused vascular densities.</p><p><strong>Conclusions: </strong>In adult patients with resuscitated septic shock, dexmedetomidine improved microcirculation, which might be associated with plasma catecholamine level. However, double-blinded large sample studies should be performed to verify the results.</p><p><p><b>Trial registration:</b> Clinicaltrials.gov NCT02270281. Registered October 16, 2014.</p>\",\"PeriodicalId\":16307,\"journal\":{\"name\":\"Journal of Intensive Care Medicine\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2024-08-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Intensive Care Medicine\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1177/08850666241267860\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CRITICAL CARE MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Intensive Care Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1177/08850666241267860","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CRITICAL CARE MEDICINE","Score":null,"Total":0}
Dexmedetomidine Improves Microcirculatory Alterations in Patients With Initial Resuscitated Septic Shock.
Background: The study was to investigate the effects of dexmedetomidine on microcirculation in patients with early septic shock despite initial resuscitation.
Methods: This was a single-center prospective study. Patients with early septic shock despite initial fluid resuscitation who still required norepinephrine to maintain target arterial pressure were enrolled. Hemodynamic and gas analysis variables, sublingual microcirculatory parameters were measured at baseline, and during the infusion of dexmedetomidine for 1 h (0.7mcg/kg/h). To elucidate the possible mechanisms of the effect of dexmedetomidine on microcirculation, after interim analysis, the dose-effect relationship of dexmedetomidine on microcirculation and catecholamine level were investigated at baseline, 1h after stabilization at different doses of dexmedetomidine (0.7 and 0.3 mcg/kg/h), and 2h after dexmedetomidine cessation.
Results: Forty-four patients with septic shock were enrolled after initial resuscitation. Compared with baseline, total and perfused vascular densities were statistically increased after infusion of dexmedetomidine, which was correlated with the dose of dexmedetomidine. During dexmedetomidine infusion, plasma norepinephrine, and dopamine level were significantly decreased. Changes in plasma norepinephrine level contributed to dexmedetomidine infusion were well correlated with changes in total and perfused vascular densities.
Conclusions: In adult patients with resuscitated septic shock, dexmedetomidine improved microcirculation, which might be associated with plasma catecholamine level. However, double-blinded large sample studies should be performed to verify the results.
Trial registration: Clinicaltrials.gov NCT02270281. Registered October 16, 2014.
期刊介绍:
Journal of Intensive Care Medicine (JIC) is a peer-reviewed bi-monthly journal offering medical and surgical clinicians in adult and pediatric intensive care state-of-the-art, broad-based analytic reviews and updates, original articles, reports of large clinical series, techniques and procedures, topic-specific electronic resources, book reviews, and editorials on all aspects of intensive/critical/coronary care.