Evidence map›Paper›PMID 26050997›Full record

Observational studyLangenbeck's archives of surgery2015

Vitamin D level is not a predictor of hypocalcemia after total thyroidectomy.

Guk Haeng Lee, Yun Hyi Ku, Hong Il Kim, Myung-Chul Lee, Min Joo Kim

Registry-linked trialAbstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Langenbeck's archives of surgery, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05216419 (Study for Effectiveness in Prevention of Postoperative Hypocalcemia of Preoperative Oral Supplementation of Vitamin D), which is not on this map. Cited by 17 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 6 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.

NCT05216419 phase4completednot on this mapstarted 2021, after this paper: background citation

Study for Effectiveness in Prevention of Postoperative Hypocalcemia of Preoperative Oral Supplementation of Vitamin D (D-mac 30,000 IU) in Patients Undergoing Total Thyroidectomy

TypeinterventionalSponsorSeoul National University HospitalRan2021 to 2024Enrolled108ConditionsTotal Thyroidectomy, Hypocalcemia, Vitamin D DeficiencyArmsCholecalciferol
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 6 syntheses or guidelines pooled it.

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  10. Serum Parathyroid Hormone and Vitamin D Levels as Predictors of Hypocalcemia after Total/ Near Total Thyroidectomy.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2023
    Article
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  13. The most reliable time point for intact parathyroid hormone measurement to predict hypoparathyroidism after total thyroidectomy with central neck dissection to treat papillary thyroid carcinoma: a prospective cohort study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Guk Haeng LeeDepartment of Otorhinolaryngology, Korea Cancer Center Hospital, 75, Nowon-ro, No-won-gu, Seoul, 139-709, Republic of Korea, ghlee@kcch.re.kr.
Yun Hyi Ku
Hong Il Kim
Myung-Chul Lee
Min Joo Kim

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAs the incidence of thyroid cancer has increased, hypocalcemia, a common complication of thyroid surgery, has become a serious problem. However, no definite predictor of postoperative hypocalcemia is known. In this study, our purpose was to investigate the potential role of vitamin D as a predictor of postoperative hypocalcemia.

methodsA prospective observational study was performed on patients who underwent total thyroidectomy for thyroid cancer performed by a single experienced surgeon between October 2013 and September 2014. MEASUREMENTS: Their serum 25-OH vitamin D levels were measured preoperatively. On the day after surgery, serum calcium and intact parathyroid hormone levels were measured, and symptoms of hypocalcemia were recorded.

resultsOf the 134 patients, laboratory and symptomatic hypocalcemia developed in 52 patients (39 %) and 25 patients (19 %), on the day after surgery. The preoperative vitamin D level was 16.5 ± 9.2 ng/mL, and this value did not differ according to laboratory or symptomatic hypocalcemia (p = 0.94). The incidence of laboratory or symptomatic hypocalcemia did not differ according to vitamin D deficiency. Only incidental parathyroidectomy was associated with symptomatic hypocalcemia (p = 0.03).

conclusionsVitamin D level is not a predictor of hypocalcemia after total thyroidectomy for thyroid cancer. Thus, routine preoperative screening for vitamin D is not recommended.

Indexed as

ThyroidectomyAdultAgedBiomarkersCalciumFemaleHumansHypocalcemiaMaleMiddle AgedParathyroid HormonePredictive Value of TestsProspective StudiesRisk FactorsThyroid NeoplasmsVitamin D DeficiencyBiomarkersCalciumParathyroid Hormone

Identifiers

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Registered trials

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.