Evidence map›Paper›PMID 33868402›Full record

ArticleInternational journal of endocrinology2021

Risk Factors for Severe Hypocalcemia in Patients with Secondary Hyperparathyroidism after Total Parathyroidectomy.

Ping Wen, Lingling Xu, Shasha Zhao, Wei Gan, Dawei Hou, Liang Zhang, Jinlong Cao, Mingxia Xiong, Lei Jiang, Junwei Yang

Open access · goldAbstract read
In one paragraph

Article in International journal of endocrinology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
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  4. Bone turnover markers in the management of CKD-associated osteoporosis-a European consensus.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2026
    Review
  5. Readmission and Cost of Parathyroidectomy By Admission Status in Secondary Hyperparathyroidism.Clinical journal of the American Society of Nephrology : CJASN · 2025
    Article
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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

10 authors at 1 institution in 1 country.

Ping WenCenter for Kidney Disease, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0002-5972-6477
Lingling XuCenter for Kidney Disease, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0002-2298-9943
Shasha ZhaoCenter for Kidney Disease, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0001-9984-9271
Wei GanCenter for Kidney Disease, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0003-0896-3592
Dawei HouDepartment of General Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0002-6928-5652
Liang ZhangCenter for Kidney Disease, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0003-2872-7992
Jinlong CaoCenter for Kidney Disease, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0002-4459-0108
Mingxia XiongCenter for Kidney Disease, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0001-8353-4136
Lei JiangCenter for Kidney Disease, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0002-7322-4502
Junwei YangCenter for Kidney Disease, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China.ORCID https://orcid.org/0000-0001-9008-5826
Second Affiliated Hospital of Nanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHypocalcemia is the most common complication of total parathyroidectomy in secondary hyperparathyroidism (SHPT) and is associated with adverse consequences such as spasms, epilepsy, and arrhythmia and even death if the serum calcium level decreases rapidly. Previous studies have identified several risk factors for postoperative severe hypocalcemia (SH) in patients with SHPT, but the sample sizes were small and thus the results may not be reliable.

objectivesThis study was performed to investigate the risk factors for SH after total parathyroidectomy without autotransplantation (tPTX) in a large sample of patients with uremic hyperparathyroidism.

methodsWe retrospectively investigated the records of 1,095 patients with SHPT treated with tPTX between January 2008 and December 2018. Based on the postoperative serum calcium concentration, the patients were grouped into SH and non-SH groups. The clinical characteristics and biochemical results were analyzed, and binary logistic regression analysis was used to identify the risk factors for SH.

resultsAfter surgery, 25.9% of the patients developed SH. Age, diastolic blood pressure (DBP), heart rate, frequency of bone pain, weight of resected glands, preoperative serum calcium, intact parathyroid hormone (iPTH), alkaline phosphatase (ALP), and hemoglobin levels differed between the two groups. Binary logistic regression analyses identified preoperative serum calcium, iPTH, and ALP levels as independent predictors of SH after surgery.

conclusionsThe preoperative serum calcium, iPTH, and ALP levels can be used to assess the risk of postoperative SH in patients with SHPT. Such patients should thus be monitored closely in order to initiate prompt interventions to avoid SH.

Identifiers

PMID33868402
PMCPMC8035008
OpenAlexW3143409671

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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.