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Delirium or cognitive problems after surgery 1.5X more likely if low vitamin D –meta-analysis Aug 2022


Association of preoperative vitamin D deficiency with the risk of postoperative delirium and cognitive dysfunction: A meta-analysis

Journal of Clinical Anesthesia. Vol 79, August 2022, 110681 https://doi.org/10.1016/j.jclinane.2022.110681 – $24 paywall
Kuo-ChuanHungabLi-KaiWangabYao-TsungLinabChia-HungYuaChia-YuChangcdCheuk-KwanSunefJen-YinChena

Study objective: Despite vitamin D deficiency (VDD) associated with cognitive dysfunction in the general population, the impacts of preoperative VDD on postoperative delirium (POD) and cognitive dysfunction (POCD) remain to be clarified.

Design; Meta-analysis of cohort studies.

Setting: Postoperative care.

Intervention; Preoperative VDD as the prognostic factor.

Patients: Adult patients undergoing surgery.

Measurements
Databases including MEDLINE, EMBASE, Google scholar, and the Cochrane Library databases were searched from inception to September 2021. Random-effects modeling was applied to the pooling of results on the association between preoperative VDD and POD/POCD. The primary outcome was the association of VDD with the risk of POD/POCD, while the secondary outcomes included other prognostic factors (e.g., hypertension) with the risk of POD/POCD. A prediction interval (PI) was calculated to indicate the range of a true effect size of a future study in 95% of all populations.

Main results
Meta-analysis of seven observational studies involving 2673 patients showed that the pooled incidence of POD/POCD was 29% (95% confidence interval (CI): 18% to 44%). Our results demonstrated that preoperative VDD increased the risk of POD/POCD [odds ratio (OR) = 1.54, 95% CI: 1.21–1.97, p < 0.01; I2 = 29.2%, seven studies, 2673 patients; 95% PI: 0.89–2.67], while vitamin D insufficiency was not associated with a higher risk of POD/POCD (OR = 0.88, 95% CI: 0.49–1.57, p = 0.66; I2 = 62.6%, four studies, 1410 patients; 95% PI: 0.09–8.79). The PI in our primary outcome (i.e., 0.89 to 2.67) containing 1.0 suggested the possibility of inconsistent results in future studies. Patients with POD/POCD were older compared to those without. Hypertension, diabetes mellitus, male gender, or smoking was not recognized as risk factors for POD/POCD.

Conclusions
Our results demonstrated that preoperative vitamin D deficiency was associated with postoperative cognitive impairment. Given the prediction interval, more future studies are needed to elucidate associations between VDD and POD/POCD.


VitaminDWiki pages with DELIRIUM in title

This list is automatically updated

Items found: 7

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Surgeries outcomes far better if daily 50,000 IU of vitamin D for a week – Oct 2018 = prehabilitation


VitaminDwiki - Cognitive category

Very brief summary of Cognitive decline
Treatment : Vitamin D intervention slows or stops progression
Prevention : Many observational studies - perhaps Vitamin D prevents
Omega-3 both prevents and treats cognition
Wonder the benefits if both Vitamin D AND Omega-3 were to be used

326 items in Cognition category

see also Overview Alzheimer's-Cognition and Vitamin D
Overview Parkinson's and Vitamin D

Studies in both categories of Cognition and:
Cardiovascular (6 studies), Genetics (8 studies), Vitamin D Receptor (15 studies), Omega-3 (48 studies), Intervention (18 studies), Meta-analyses (21 studies), Depression (21 studies), Parlinson's (16 studies),  Click here for details

Vitamin D pages containing "Dementia" in title (40 as of April 2022)
Poor cognition 26 percent more likely if low Vitamin D (29 studies) – meta-analysis July 2017
Every schizophrenia measure was improved when vitamin D levels were normalized – June 2021
Cognitive Impairment and Dementia often associated with low Vitamin D – April 2020
IQ levels around the world are falling (perhaps lower Vitamin D, Iodine, or Omega-3)
Search VitaminDWiki for "WHITE MATTER" 53 items as of Jan 2017

Types of evidence that Vitamin D helps brain problems - 2014
https://vitamindwiki.com/tiki-index.php?page_id=8392


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