Evidence map›Paper›PMID 37286951›Full record

ArticleBMC gastroenterology2023

Development of a scoring model based on objective factors to predict gangrenous/perforated appendicitis.

Toshimichi Kobayashi, Eiji Hidaka, Itsuki Koganezawa, Masashi Nakagawa, Kei Yokozuka, Shigeto Ochiai, Takahiro Gunji, Toru Sano, Koichi Tomita, Satoshi Tabuchi and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC gastroenterology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

2 citing papers in PubMed, 7 citations in OpenAlex.

  1. 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

12 authors at 1 institution in 1 country.

Toshimichi KobayashiDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Eiji HidakaDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Itsuki KoganezawaDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Masashi NakagawaDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Kei YokozukaDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Shigeto OchiaiDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Takahiro GunjiDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Toru SanoDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Koichi TomitaDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Satoshi TabuchiDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Naokazu ChibaDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan.
Shigeyuki KawachiDepartment of Digestive and Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, 1163 Tatemachi Hachioji, Tokyo, 193-0998, Japan. skawachi@tokyo-med.ac.jp.
Tokyo Medical University Hachioji Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe mortality rate of gangrenous/perforated appendicitis is higher than that of uncomplicated appendicitis. However, non-operative management of such patients is ineffective. This necessitates their careful exam at presentation to identify gangrenous/perforated appendicitis and aid surgical decision-making. Therefore, this study aimed to develop a new scoring model based on objective findings to predict gangrenous/perforated appendicitis in adults.

methodsWe retrospectively analyzed 151 patients with acute appendicitis who underwent emergency surgery between January 2014 and June 2021. We performed univariate and multivariate analyses to identify independent objective predictors of gangrenous/perforated appendicitis, and a new scoring model was developed based on logistic regression coefficients for independent predictors. Receiver operating characteristic (ROC) curve analysis and the Hosmer-Lemeshow test were performed to assess the discrimination and calibration of the model. Finally, the scores were classified into three categories based on the probability of gangrenous/perforated appendicitis.

resultsAmong the 151 patients, 85 and 66 patients were diagnosed with gangrenous/perforated appendicitis and uncomplicated appendicitis, respectively. Using the multivariate analysis, C-reactive protein level, maximal outer diameter of the appendix, and presence of appendiceal fecalith were identified as independent predictors for developing gangrenous/perforated appendicitis. Our novel scoring model was developed based on three independent predictors and ranged from 0 to 3. The area under the ROC curve was 0.792 (95% confidence interval, 0.721-0.863), and the Hosmer-Lemeshow test showed a good calibration of the novel scoring model (P = 0.716). Three risk categories were classified: low, moderate, and high risk with probabilities of 30.9%, 63.8%, and 94.4%, respectively.

conclusionsOur scoring model can objectively and reproducibly identify gangrenous/perforated appendicitis with good diagnostic accuracy and help in determining the degree of urgency and in making decisions about appendicitis management.

Indexed as

AppendicitisAppendixAdultAppendectomyGangreneHumansRetrospective StudiesGangrenous/perforated appendicitisPredictionScoring model

Identifiers

PMID37286951
PMCPMC10249254
OpenAlexW4379646345

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.