The Effect of Preoperative Methylprednisolone on Postoperative Delirium in Older Patients Undergoing Gastrointestinal Surgery: A Randomized, Double-Blind, Placebo-Controlled Trial.
J Gerontol A Biol Sci Med Sci
; 77(3): 517-523, 2022 Mar 03.
Article
em En
| MEDLINE
| ID: mdl-34423832
ABSTRACT
BACKGROUND:
Preoperative administration of methylprednisolone reduced circulating markers of endothelial activation. This randomized, double-blind, placebo-controlled trial was to evaluate whether a single preoperative dose of methylprednisolone reduced the rate of postoperative delirium (POD) in older patients undergoing gastrointestinal surgery and its association with the shedding of endothelial glycocalyx markers.METHODS:
About 168 patients, aged 65-80 years and scheduled for laparoscopic gastrointestinal surgery, were randomized to 2 mg/kg methylprednisolone (Group M, n = 84) or equivalent dose of placebo (Group C, n = 84). The primary outcome was the incidence of delirium during the first 5 days after surgery, assessed by the Confusion Assessment Method (CAM). POD severity was rated daily using CAM-Severity (CAM-S). Levels of syndecan-1, heparan sulfate, tumor necrosis factor-α (TNF-α), and brain-derived neurotrophic factor (BDNF) were measured at baseline, 1 day, and 3 days after surgery.RESULTS:
Compared with placebo, methylprednisolone greatly reduced the incidence of delirium at 72 hours following surgery (9 [10.7%] vs 20 [23.8%], p = .03, OR = 2.22 [95% CI 1.05-4.59]). No between-group difference was found in the cumulative CAM-S score (p = .14). The levels of heparan sulfate, syndecan-1, and TNF-α in Group M were lower than that in Group C (p < .05 and p < .01), while the level of BDNF in Group M was higher than that in Group C (p < .01).CONCLUSIONS:
Preoperative administration of methylprednisolone does not reduce the severity of POD, but may reduce the incidence of delirium after gastrointestinal surgery in older patients, which may be related to a reduction in circulating markers of endothelial degradation, followed by the increase of BDNF level. CLINICAL TRIALS REGISTRATION NUMBER Chinese Clinical Trial.gov, ChiCTR2000028792. Registered January 4, 2020. http//www.chictr.org.cn/showproj.aspx?proj=47807.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Procedimentos Cirúrgicos do Sistema Digestório
/
Delírio
Tipo de estudo:
Clinical_trials
/
Etiology_studies
Limite:
Aged
/
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article