Evidence map›Paper›PMID 34983475›Full record

Trial reportBMC endocrine disorders2022

Prophylactic bilateral central neck dissection should be evaluated based on prospective randomized study of 581 PTC patients.

Shouyi Yan, Jiafan Yu, Wenxin Zhao, Bo Wang, Liyong Zhang

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC endocrine disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
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  5. 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

5 authors at 1 institution in 2 countries.

Shouyi YanDepartment of Thyroid and Vascular Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian Province, China.
Jiafan YuDepartment of Thyroid and Vascular Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian Province, China.
Wenxin ZhaoDepartment of Thyroid and Vascular Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian Province, China. fzhzwx6688@163.com.ORCID https://orcid.org/0000-0003-2025-4246
Bo WangDepartment of Thyroid and Vascular Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian Province, China.
Liyong ZhangDepartment of Thyroid and Vascular Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian Province, China.
Fujian Medical University · CN

Funding

guiding social development project of fujian province 2018Y0035joint funds for the innovation of science and technology, fujian province 2018Y9015joint funds for the innovation of science and technology, fujian province 2018Y9018joint funds for the innovation of science and technology, fujian province 2018Y9093medical innovation project of fujian province 2018-CX-17startup fund for scientific research, fujian medical university 2017XQ1037
6 · The paper itself

Abstract

backgroundProphylactic central lymph node dissection (PCND) was a basic consensus for patients with papillary thyroid carcinoma (PTC) in China. However, unilateral or bilateral central lymph node dissection (CND) was still controversial. This study aimed at investigating the safety and long-term benefit for the patients undergone with bilateral central lymph node dissection (BCCD).

methods581 patients were enrolled and divided randomly into the test and control groups according to range of CND. 285 patients were prospectively assigned to undergo thyroid lobectomy plus BCND in the test group, other 296 patients were assigned to undergo thyroid lobectomy plus ipsilateral central lymph node dissection (ICND) in the control group.

resultsWe found that the numbers of total LN and pN1a in the test group were more than that of the control group (p = 0.002,0.004), but there was no difference in the number of metastasized lymph nodes (p = 0.857) and tumor recurrence (p = 0.308). Additionally, in the aspect of postoperative complication (1 day after surgery), the serum levels of parathyroid hormone in the BCND group were lower than that in the ICND group (P = 0.010), and the numbers of transient laryngeal nerve palsy were more than that(p = 0.033). Meanwhile, we further found that pathological tumor size larger than 1 cm and tumor side lymph node metastasis were independent risk factors for contralateral central lymph node metastasis(p = 0.002,0.001).

conclusionBCND may be an alternative for patients with tumor sizes larger than 1 cm, but it would significantly increase the rate of transient vocal cord palsy, parathyroid auto transplantation and decreased PTH, but the risk of permanent complications was similar to the ICND group.

Indexed as

Postoperative ComplicationsAdultFemaleHumansLymph Node ExcisionMaleMiddle AgedNeck DissectionOutcome Assessment, Health CareProspective StudiesThyroid Cancer, PapillaryThyroid NeoplasmsCentral lymph node dissectionPapillary thyroid cancerParathyroid protectionThyroidectomyTumor recurrence

Identifiers

PMID34983475
PMCPMC8725302
OpenAlexW4205522713

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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.