From the Departments of Medicine (F. Lamontagne, M.-C.B., H.Q.M.) and Anesthesiology (F.D.), Université de Sherbrooke, the Department of Pharmacy (B.B.), Centre de Recherche du CHU de Sherbrooke, Centre Intégré Universitaire de Santé et de Services Sociaux de l'Estrie-Centre Hospitalier Universitaire de Sherbrooke (F. Lamontagne, M.-H.M., J.M., F.D., E. Carbonneau), and Bishop's University (D.C.), Sherbrooke, QC, the Division of Orthopaedic Surgery, Department of Surgery (S.S.), the Department of Medicine (D.J.C., G.H.G., B.R., T.M., M.O.M., E.P.B.-C., S.S.K.), the Department of Health Research Methods, Evidence, and Impact (D.J.C., G.H.G., B.R., M.O.M., L.H., E.P.B.-C., F.C.), and the Population Health Research Institute (E.P.B.-C.), McMaster University, the Department of Critical Care, St. Joseph's Healthcare Hamilton (D.J.C.), the Intensive Care Unit, Juravinski Hospital (T.M.), and Respiratory Therapy, Hamilton Health Sciences (L.H.), Hamilton, ON, the Department of Critical Care Medicine, Sunnybrook Health Sciences Centre (R. Pinto, N.M., N.K.J.A.), the Interdepartmental Division of Critical Care Medicine, University of Toronto (S.M., N.K.J.A.), and Sinai Health System (S.M.), Toronto, the Departments of Critical Care Medicine (D.K.H., D.M.M., M.H.), Public Health Sciences (A.G.D.), and Medicine (D.M.M.), Queen's University, and Kingston Health Sciences Centre (A.G.D., D.M.M.), Kingston, ON, the Department of Pharmacy, Ottawa Hospital (S.K.), Ottawa Hospital Research Institute (S.K., I.W., R. Porteous), and the Department of Surgery, University of Ottawa (A.J.E.S.), Ottawa, ON, the Massawippi Valley Foundation, Ayer's Cliff, QC (D.C.), the Department of Medicine, Université de Montréal (M.C.), the Centre Hospitalier de l'Université de Montréal (M.C., M.L., E. Charbonney), the Centre de Recherche de l'Hôpital du Sacré-Coeur de Montréal (E. Charbonney), and the Departments of Medicine and Critical Care, McGill University Health Centre (J.S.), Montreal, QC, the Department of Medicine (F. Lauzier) and the Division of Critical Care Medicine, Department of Anesthesiology and Critical Care (F. Lauzier, A.F.T.), Université Laval, the Critical Care Medicine Service (F. Lauzier, A.F.T.), and the Research Center (F. Lauzier, A.F.T.), CHU de Québec-Université Laval, Quebec, QC, the Department of Critical Care Medicine, University of Alberta, Edmonton (O.G.R., D.J.K.), the Division of Intensive Care, Department of Medicine, CHU Dr. Georges L. Dumont, Moncton, NB (R.L.), the Department of Surgery, Schulich School of Medicine and Dentistry, Western University, London, ON (T.S.M.), the Division of Intensive Care Medicine, Island Health Authority, Victoria, BC (G.W.), and the Department of Medicine, Halton Healthcare, Oakville, ON (S.S.K.) - all in Canada; the Cardiothoracic and Vascular Intensive Care Unit, Auckland City Hospital (R. Parke, S.P.M.), and the School of Nursing, University of Auckland (R. Parke), Auckland, the Medical Research Institute of New Zealand, Newtown (R. Parke, S.P.M., P.J.Y.), the Intensive Care Unit, Wellington Hospital, Wellington (P.J.Y.), and the Department of Surgical Sciences, University of Otago, Dunedin (P.T.) - all in New Zealand; the Department of Critical Care Medicine, Apollo Hospitals, Chennai, and George Institute for Global Health, New Delhi - both in India (B.K.T.V.); the Department of Intensive Care Medicine, Raymond-Poincaré Hospital (Assistance Publique-Hôpitaux de Paris [AP-HP]), and Fédération Hospitalo-Universitaire SEPSIS, Garches (D.A.), Institut National de la Santé et de la Recherche Médicale, University Paris-Saclay Campus UVSQ, Versailles (D.A.), and Service de Médecine Intensive Réanimation, AP-HP, Hôpitaux Universitaires Henri-Mondor, Groupe de Recherche Clinique CARMAS, and Institut Mondor de Recherche Biomédicale, Université Paris Est Créteil, Créteil (A.M.-D.) - all in France; the College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, and the Department of Intensive Care, King Abdulaziz Medical City, Ministry of National Guard Health Affairs - all in Riyadh, Saudi Arabia (Y.M.A.); and the Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, VIC, Australia (R. Parke, S.P.M., P.J.Y.).
N Engl J Med. 2022 Jun 23;386(25):2387-2398. doi: 10.1056/NEJMoa2200644. Epub 2022 Jun 15.
Studies that have evaluated the use of intravenous vitamin C in adults with sepsis who were receiving vasopressor therapy in the intensive care unit (ICU) have shown mixed results with respect to the risk of death and organ dysfunction.
In this randomized, placebo-controlled trial, we assigned adults who had been in the ICU for no longer than 24 hours, who had proven or suspected infection as the main diagnosis, and who were receiving a vasopressor to receive an infusion of either vitamin C (at a dose of 50 mg per kilogram of body weight) or matched placebo administered every 6 hours for up to 96 hours. The primary outcome was a composite of death or persistent organ dysfunction (defined by the use of vasopressors, invasive mechanical ventilation, or new renal-replacement therapy) on day 28.
A total of 872 patients underwent randomization (435 to the vitamin C group and 437 to the control group). The primary outcome occurred in 191 of 429 patients (44.5%) in the vitamin C group and in 167 of 434 patients (38.5%) in the control group (risk ratio, 1.21; 95% confidence interval [CI], 1.04 to 1.40; P = 0.01). At 28 days, death had occurred in 152 of 429 patients (35.4%) in the vitamin C group and in 137 of 434 patients (31.6%) in the placebo group (risk ratio, 1.17; 95% CI, 0.98 to 1.40) and persistent organ dysfunction in 39 of 429 patients (9.1%) and 30 of 434 patients (6.9%), respectively (risk ratio, 1.30; 95% CI, 0.83 to 2.05). Findings were similar in the two groups regarding organ-dysfunction scores, biomarkers, 6-month survival, health-related quality of life, stage 3 acute kidney injury, and hypoglycemic episodes. In the vitamin C group, one patient had a severe hypoglycemic episode and another had a serious anaphylaxis event.
In adults with sepsis receiving vasopressor therapy in the ICU, those who received intravenous vitamin C had a higher risk of death or persistent organ dysfunction at 28 days than those who received placebo. (Funded by the Lotte and John Hecht Memorial Foundation; LOVIT ClinicalTrials.gov number, NCT03680274.).
在 ICU 接受升压治疗的败血症成人中，评估静脉用维生素 C 应用的研究结果在死亡率和器官功能障碍风险方面存在差异。
在这项随机、安慰剂对照试验中，我们将 ICU 入住时间不超过 24 小时、以感染为主要诊断且正在接受升压治疗的成年人分配至维生素 C 组（以 50mg/kg 的剂量输注）或匹配的安慰剂组，每 6 小时给药一次，最多给药 96 小时。主要结局是 28 天死亡或持续器官功能障碍的复合终点（定义为使用升压药、有创机械通气或新的肾脏替代治疗）。
共有 872 名患者接受了随机分组（维生素 C 组 435 例，对照组 437 例）。维生素 C 组 429 例患者中有 191 例（44.5%）发生主要结局，对照组 434 例患者中有 167 例（38.5%）发生主要结局（风险比，1.21；95%置信区间 [CI]，1.04 至 1.40；P=0.01）。28 天时，维生素 C 组 429 例患者中有 152 例（35.4%）死亡，对照组 434 例患者中有 137 例（31.6%）死亡（风险比，1.17；95%CI，0.98 至 1.40）；维生素 C 组 429 例患者中有 39 例（9.1%）持续存在器官功能障碍，对照组 434 例患者中有 30 例（6.9%）持续存在器官功能障碍（风险比，1.30；95%CI，0.83 至 2.05）。两组器官功能障碍评分、生物标志物、6 个月生存率、健康相关生活质量、3 期急性肾损伤和低血糖发作的结果相似。维生素 C 组有 1 例患者发生严重低血糖事件，1 例患者发生严重过敏反应。
在 ICU 接受升压治疗的败血症成人中，与安慰剂相比，接受静脉用维生素 C 治疗的患者在 28 天时死亡或持续存在器官功能障碍的风险更高。（由 Lotte 和 John Hecht 纪念基金会资助；LOVIT ClinicalTrials.gov 编号，NCT03680274。）
