Navigation Links
Low vitamin D levels linked to increased risks after noncardiac surgery
Date:8/15/2014

August 15, 2014 Patients with low blood levels of vitamin D are at increased risk of death and serious complications after noncardiac surgery, suggests a study in Anesthesia & Analgesia.

"Vitamin D concentrations were associated with a composite of in-hospital death, serious infections, and serious cardiovascular events," according to the new research by Dr Alparslan Turan and colleagues of the Cleveland Clinic. They believe their results warrant further study to see if giving vitamin D supplementation before surgery can reduce the risk of these adverse outcomes.

Lower Vitamin D Levels Linked to Higher Surgical Risk

The researchers analyzed the relationship between vitamin D level and surgical outcomes in approximately 3,500 patients who underwent operations other than heart surgery between 2005 and 2011. Only patients who had available data on vitamin D levels around the time of surgeryfrom three months before to one month afterwardwere included in the study.

The concentration of vitamin D (specifically, 25-hydroxyvitamin D) in blood samples was analyzed as a risk factor for death, cardiovascular events, or serious infections while in the hospital. The analysis included adjustment for other factors such as demographic characteristics, medical conditions, and type and duration of surgery.

Most patients did not meet the recommended 25-hydroxyvitamin D concentration of greater than 30 nanograms per milliliter (ng/mL). The median vitamin D level was 23.5 ng/mLmore than 60 percent of patients were in the range of vitamin D insufficiency (10 to 30 ng/mL). Nearly 20 percent had vitamin D deficiency (less than 10 ng/mL).

"Higher vitamin D concentrations were associated with decreased odds of in-hospital mortality/morbidity," the researchers write. For each 5 ng/mL increase in 25-hydroxyvitamin D level, the combined risk of death, cardiovascular events, or serious infections decreased by seven percent.

Patients at the lowest level of 25-hydroxyvitamin D (less than 13 ng/mL) were at highest risk of death or serious complications. Those with higher vitamin D levels (up to 44 ng/mL) had about half the risk as those in the lowest group. The association with low vitamin D was statistically significant only for cardiovascular complications, although there were "strong trends" for mortality and infections.

Further Study Needed to Determine Cause and Effect

"Vitamin D deficiency is a global health problem," according to Dr Turan and coauthors. In addition to protective cardiovascular and neurological effects, vitamin D plays an important role in the immune system.

The high rates of vitamin D insufficiency and deficiency in the surgical patients studied are consistent with previous findings in the general population. In recent years, studies have suggested that vitamin D levels may affect a wide range of health outcomes.

Patients undergoing surgery are at risk of cardiovascular and infectious complications, both of which may be aggravated by vitamin D deficiency. Previous studies found no increased risk of adverse outcomes related to vitamin D levels in patients undergoing cardiac surgery. It may be that the tissue injury and inflammation associated with heart surgery overwhelms any potential protective effect of vitamin D.

However, Dr Turan and colleagues note that their study had some important limitations of their studyespecially the fact that it included only patients who had recent measurements of vitamin D levels. They may represent a less-healthy group, introducing a potential source of selection bias.

The study can't determine whether there is any cause-and-effect relationship between vitamin D levels and the risk of adverse outcomes. Dr Turan and colleagues suggest a formal randomized trial to evaluate whether preoperative vitamin D supplementation can reduce the risk of serious complications and death after surgery.


'/>"/>
Contact: Nancy Lynly
nlynly@iars.org
415-296-6907
Wolters Kluwer Health
Source:Eurekalert

Related medicine news :

1. Womens Vitamin D Levels May Play Role in IVF Success
2. Hotze Vitamins™ Announces the Release of My HotzePak™
3. Daily Sun Exposure and Vitamin D Intake Simplified With Wearable Device
4. Low Vitamin D Levels May Boost Alzheimers Risk, Study Finds
5. Europe Vitamins (Nutraceuticals) Market is Expected to Reach $1,202.08 Million in 2018 - New Report by MicroMarket Monitor
6. Best Vitamin C Serum for Wrinkles List Complied for Women at Consumer News Portal Online
7. Vitamin B No Help for Alzheimers: Review
8. Healthy Vitamins Releases New Recipes for Garden of Life's Protein Powders
9. Taking B vitamins wont prevent Alzheimers disease
10. Nutrition experts: Debate over value of vitamin, mineral supplements is far from over
11. Coating stents with vitamin C could reduce clotting risks
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/28/2017)... (PRWEB) , ... June 28, 2017 , ... Guide to ... , No matter on which side of the Atlantic devicemakers do business, ... regulations they have to follow. , In addition to the full text of the ...
(Date:6/28/2017)... ... June 28, 2017 , ... Anyone with a remote control has seen the never-ending twists ... you the flipper will get rich in no time. But what about the buyers ... get for the buyer of a flipped house. An email recently sent to Gary ...
(Date:6/28/2017)... (PRWEB) , ... June 28, 2017 , ... David B. Sosin, a founding ... Illinois, took over the post of 2nd Vice President for the Illinois State Bar ... installed as the ISBA’s 3rd Vice President in 2016 following a state-wide election and served ...
(Date:6/28/2017)... ... ... American Farmer proudly announces the participation of Pure Line Seeds, Inc (Pure ... broadcast fourth quarter 2017. American Farmer airs Tuesdays at 8:30aET on RFD-TV. , Founded ... As demand grew, the small company located in Moscow, Idaho extended its sales from ...
(Date:6/28/2017)... (PRWEB) , ... June 28, 2017 , ... ... ZEON) is pleased to announce that a two year study conducted by the ... Bromley Creek zeolite was successful in remediating potash brine-impacted groundwater. As a part ...
Breaking Medicine News(10 mins):
(Date:6/14/2017)... CALABASAS, Calif. , June 14, 2017 ... with the City of Fremont ... chain of the bio-pharma industry in California ... sharing technology, enabling executive networking, and fostering workforce development. ... the development and growth of start-ups, as well as ...
(Date:6/11/2017)... , June 10, 2017  Eli Lilly and Company (NYSE: ... three Phase 3 studies of galcanezumab, an investigational treatment ... late-breaking data on several key secondary endpoints for galcanezumab ... from these studies (EVOLVE-1, EVOLVE-2 and REGAIN) will be ... scientific meeting in Boston . ...
(Date:6/8/2017)... MAITLAND, Fla. , June 8, 2017  Less ... ransomware attack that hit more than 200,000 companies, including hospital ... is being heralded as one of the largest online ... technology in the healthcare market, it is imperative that ... can protect their data from this — and many ...
Breaking Medicine Technology: