Evidence map›Paper›PMID 21153820›Full record

ArticleWorld journal of surgery2011

Preoperative vitamin D deficiency predicts postoperative hypocalcemia after total thyroidectomy.

James Kirkby-Bott, Haridimos Markogiannakis, Anita Skandarajah, Matthew Cowan, Bill Fleming, Fausto Palazzo

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Article in World journal of surgery, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

51 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  14. Does Vitamin D Deficiency Really Increase the Risk of Post-surgical Hypoparathyroidism?Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2023
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  19. Preoperative vitamin D deficiency is associated with increased risk of postoperative hypocalcemia after total thyroidectomy.Journal of investigative medicine : the official publication of the American Federation for Clinical Research · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

James Kirkby-BottDepartment of Endocrine Surgery, Hammersmith Hospital, Imperial College NHS Trust, Du Cane Road, London, W12 0HS, UK.
Haridimos Markogiannakis
Anita Skandarajah
Matthew Cowan
Bill Fleming
Fausto Palazzo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTransient postthyroidectomy hypocalcemia occurs in up to 30% of patients. We evaluated the effect of vitamin D deficiency on postthyroidectomy hypocalcemia.

methodsData were collected prospectively between January 2006 and March 2009. A total of 166 consecutive total thyroidectomies were analyzed regarding the relation between preoperative vitamin D3 levels and postoperative corrected calcium levels. Patients were divided into three groups dependent upon the preoperative vitamin D3 level: group 1, <25 nmol/l; group 2, 25-50 nmol/l; group 3, >50 nmol/l (conversion factor of 2.5× between nanomoles per liter and nanograms per milliliter). Hypocalcemia was defined as a postoperative calcium level<2.00 mmol/l (8 mg/dl). Hospital length of stay was recorded.

resultsThere was a difference in postoperative hypocalcemia between the three vitamin D3 groups (group 1 (32%) vs. group 2 (24%) vs. group 3 (13%). Hypocalcemia in group 1 (vit D<25 nmol/l, <10 ng/ml) was significantly more likely than in group 3 (vit D>50 nmol/l, >20 ng/ml) (P=0.025, χ2 test. Vitamin D3 deficiency was also associated with a longer hospital stay (median stay 2 days vs. 1 day, P<0.001, Wilcoxon rank test).

conclusionsThere is a significant difference in postoperative hypocalcemia rates between those with vitamin D levels>50 nmol/l (>20 ng/ml) and those with a level of <25 nmol/l (<10 ng/ml). Vitamin D deficiency leads to a delay in discharge owing to a higher likelihood of hypocalcemia.

Indexed as

ThyroidectomyAdultAgedAged, 80 and overFemaleHumansHypocalcemiaMaleMiddle AgedPostoperative ComplicationsPredictive Value of TestsRetrospective StudiesVitamin D DeficiencyYoung Adult

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.