Evidence map›Paper›PMID 22654796›Full record

ArticleFrontiers in endocrinology2011

Partitioning of bronchopulmonary carcinoids in two different prognostic categories by ki-67 score.

Franco Grimaldi, Daniele Muser, Carlo Alberto Beltrami, Piernicola Machin, Angelo Morelli, Stefano Pizzolitto, Giovanni Talmassons, Francesca Marciello, Annamaria Anita Livia Colao, Roberto Monaco and 2 more

Abstract read
In one paragraph

Article in Frontiers in endocrinology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

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

  1. The use of Ki-67 labeling index to grade pulmonary well-differentiated neuroendocrine neoplasms: current best evidence.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2018
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  12. Evaluation of diagnostic and prognostic significance of Ki-67 index in pulmonary carcinoid tumours.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2017
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  14. Ki-67 expression in pulmonary tumors.Translational lung cancer research · 2016
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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

12 authors.

Franco GrimaldiEndocrinology and Metabolism Unit, Azienda Ospedaliero-Universitaria Santa Maria della Misericordia di Udine Udine, Italy.
Daniele Muser
Carlo Alberto Beltrami
Piernicola Machin
Angelo Morelli
Stefano Pizzolitto
Giovanni Talmassons
Francesca Marciello
Annamaria Anita Livia Colao
Roberto Monaco
Guglielmo Monaco
Antongiulio Faggiano

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHistological distinction between typical and atypical bronchopulmonary carcinoids is based on mitotic activity and necrosis. Regardless of these two parameters, outcome after surgery is often unpredictable. In this study the prognostic value of different clinico-pathological factors was retrospectively analyzed in a large series of patients with bronchopulmonary carcinoid. MATERIALS AND

methodsThe long-term post-surgical outcome of 106 radically treated patients affected by bronchopulmonary carcinoid from two Italian centers was correlated with tumor characteristics assessed by combining conventional histology with a panel of immunohistochemical markers of neuroendocrine differentiation (chromogranin-A, NSE) and proliferation activity (Ki-67 score).

resultsCarcinoids were assessed as typical (TC = 75; 70.8%) and atypical (AC = 31; 29.2%). Mean follow-up was 8.3 years (range: 0-20; median: 8.0). All cases expressed neuroendocrine markers. At univariate analysis, tumor recurrence [14/75 TC (18.7%), 15/31 AC (48.4%)] correlated with carcinoid histotype (P = 0.003), tumor size (P = 0.012), mitotic index (P = 0.044), Ki-67 score (P < 0.0001), and synchronous node metastasis (P = 0.037). Of these, Cox multivariate analysis confirmed only Ki-67 score as independent predictor of disease recurrence (P = 0.009). The best cut-off for Ki-67 score (calculated by ROC curves) discriminating recurrent vs non-recurrent disease was 4% (sensitivity 79.3%; specificity 83.8%; area under the curve 0.85). By stratifying patients according to this cut-off, a significantly different disease-free survival was found (log-rank test P < 0.0001).

conclusionKi-67 score accurately separates bronchopulmonary carcinoids in two well-distinct histo-prognostic categories. Ki-67 score predicts the patients outcome better than mitotic count, histotype, and tumor stage and it is therefore helpful in establishing the appropriate follow-up.

Indexed as

Ki-67neuroendocrine tumorstumor markers

Identifiers

PMID22654796
PMCPMC3356093

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