Evidence map›Paper›PMID 34586582›Full record

ArticleEndocrine2021

Hypocalcemia in COVID-19 is associated with low vitamin D levels and impaired compensatory PTH response.

Luigi di Filippo, Agnese Allora, Massimo Locatelli, Patrizia Rovere Querini, Stefano Frara, Giuseppe Banfi, Andrea Giustina

Abstract read
In one paragraph

Article in Endocrine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

7 authors.

Luigi di FilippoInstitute of Endocrine and Metabolic Sciences, Università Vita-Salute San Raffaele, IRCCS Ospedale San Raffaele, Milan, Italy.
Agnese AlloraInstitute of Endocrine and Metabolic Sciences, Università Vita-Salute San Raffaele, IRCCS Ospedale San Raffaele, Milan, Italy.
Massimo LocatelliLaboratory Medicine Service, IRCCS Ospedale San Raffaele, Milan, Italy.
Patrizia Rovere QueriniDivision of Immunology, Transplantation and Infectious Diseases, Università Vita-Salute San Raffaele, IRCCS Ospedale San Raffaele, Milan, Italy.
Stefano FraraInstitute of Endocrine and Metabolic Sciences, Università Vita-Salute San Raffaele, IRCCS Ospedale San Raffaele, Milan, Italy.
Giuseppe BanfiIRCCS Istituto Ortopedico Galeazzi, Laboratory of Experimental Biochemistry & Molecular Biology, Università Vita-Salute San Raffaele, Milan, Italy.
Andrea GiustinaInstitute of Endocrine and Metabolic Sciences, Università Vita-Salute San Raffaele, IRCCS Ospedale San Raffaele, Milan, Italy. giustina.andrea@hsr.it.ORCID 0000-0001-6783-3398

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHypocalcemia has been identified as a major distinctive feature of COVID-19, predicting poor clinical outcomes. Among the mechanisms underlying this biochemical finding, high prevalence of vitamin D (VD) deficiency in COVID-19 patients reported so far in several studies was advocated. However, robust data in favor of this hypothesis are still lacking. Therefore, aim of our study was to investigate the role of hypovitaminosis D and parathyroid hormone (PTH) levels in the development of hypocalcemia in COVID-19 patients.

methodsPatients admitted to IRCCS Ospedale San Raffaele for COVID-19 were enrolled in this study, excluding those with comorbidities and therapies influencing calcium and VD metabolism. Serum levels of total calcium (tCa), ionized calcium (Ca

resultsA total of 78 patients were included in the study. Median tCa and Ca

conclusionsIn conclusion, we confirmed a high prevalence of hypocalcemia in COVID-19 patients and we showed for the first time that it occurred largely in the context of marked hypovitaminosis D not adequately compensated by secondary hyperparathyroidism.

Indexed as

COVID-19Hyperparathyroidism, SecondaryHypocalcemiaVitamin D DeficiencyCalciumHumansItalyParathyroid HormoneVitamin DCalciumParathyroid HormoneVitamin DCalciumCOVID-19HypocalcemiaHypovitaminosis DPTHVitamin D

Identifiers

PMID34586582
PMCPMC8480127

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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.