Evidence map›Paper›PMID 34556614›Full record

ArticleAnnals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia2022

Preoperative Low Serum Calcium Levels Predict Poor Prognosis for Patients with Esophageal Cancer.

Fumiaki Shiratori, Takashi Suzuki, Satoshi Yajima, Yoko Oshima, Tatsuki Nanami, Kimihiko Funahashi, Hideaki Shimada

Open access · goldAbstract read
In one paragraph

Article in Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.1field-weighted citation impact, top 22% of its field
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

4 citing papers in PubMed, 8 citations in OpenAlex.

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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 at 1 institution in 1 country.

Fumiaki ShiratoriDepartment of Surgery, School of Medicine, Toho University, Tokyo, Japan.
Takashi SuzukiDepartment of Surgery, School of Medicine, Toho University, Tokyo, Japan.
Satoshi YajimaDepartment of Surgery, School of Medicine, Toho University, Tokyo, Japan.
Yoko OshimaDepartment of Surgery, School of Medicine, Toho University, Tokyo, Japan.
Tatsuki NanamiDepartment of Surgery, School of Medicine, Toho University, Tokyo, Japan.
Kimihiko FunahashiDepartment of Surgery, School of Medicine, Toho University, Tokyo, Japan.
Hideaki ShimadaDepartment of Surgery, School of Medicine, Toho University, Tokyo, Japan.
Toho University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeHypercalcemia has been reported as a poor prognostic factor in malignant tumors. However, no report has shown the clinical impact of serum calcium levels on patients with esophageal cancer. We evaluated the prognostic impact of preoperative serum calcium levels on patients with esophageal cancer.

methodsWe evaluated 240 patients (197 men, 43 women; mean age, 66 years; age range, 34-85 years) with esophageal cancer who underwent radical surgery between September 2008 and December 2017. After assigning the patients to two groups (high calcium group, 8.8 mg/dL or more and low calcium group, 8.7 mg/dL or less), we compared the groups' overall survival and the clinicopathological features. The clinicopathological and prognostic significance of preoperative serum calcium levels were evaluated in a univariate and multivariate analysis.

resultsThe patients with deep tumors showed low serum calcium levels significantly more frequently (P <0.05). The low calcium group showed a significantly worse prognosis than the high calcium group (P <0.05). However, low serum calcium level was not an independent poor prognostic factor.

conclusionsPreoperative low serum calcium levels were associated with advanced tumors. Low serum calcium might be associated with esophageal cancer progression.

Indexed as

CalciumEsophageal NeoplasmsAdultAgedAged, 80 and overEsophagectomyFemaleHumansMaleMiddle AgedPrognosisRetrospective StudiesTreatment OutcomeCalciumesophageal cancerprognosisserum calcium level

Identifiers

PMID34556614
PMCPMC9081468
OpenAlexW3199120986

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.