Evidence map›Paper›PMID 30317543›Full record

ArticleCancer2018

Treatment at low-volume hospitals is associated with reduced short-term and long-term outcomes for patients with retroperitoneal sarcoma.

Emily Z Keung, Yi-Ju Chiang, Janice N Cormier, Keila E Torres, Kelly K Hunt, Barry W Feig, Christina L Roland

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 1 pooled it
10.4field-weighted citation impact, top 1% 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

52 citing papers in PubMed, 1 synthesis or guideline pooled it, 150 citations in OpenAlex.

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  16. [Neoadjuvant chemotherapy for retroperitoneal sarcoma].Chirurgie (Heidelberg, Germany) · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Emily Z KeungDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Yi-Ju ChiangDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Janice N CormierDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Keila E TorresDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Kelly K HuntDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Barry W FeigDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Christina L RolandDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
The University of Texas MD Anderson Cancer Center · US

Funding

Paul Calabresi Clinical Oncology AwardK12CA088084 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI David S. Hong, Scott Kopetz · 2000 to 2026
$14.0M
TRAINING OF ACADEMIC SURGICAL ONCOLOGISTST32CA009599 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Ashley M Holder, Jennifer A. Wargo · 1988 to 2026
$13.2M
NCI NIH HHS K12 CA088084NCI NIH HHS T32 CA009599NIH HHS K12NIH HHS T32CA0095999
6 · The paper itself

Abstract

backgroundRetroperitoneal sarcomas (RPS) are rare tumors for which complete surgical resection remains the mainstay of treatment. The objective of the current study was to determine the impact of hospital case volume on outcomes in patients with RPS.

methodsA total of 6950 patients with primary RPS who underwent surgical resection were identified from the National Cancer Data Base (1998-2011). Treating hospitals were classified by annual case volume; low-volume hospitals (LVHs) and high-volume hospitals (HVHs) were defined as those with ≤10 cases per year and >10 cases per year, respectively. Overall survival (OS) was compared using Kaplan-Meier curves. Cox proportional hazard models were created to compare risks.

resultsOf the 1131 reporting hospitals, the majority (1127 hospitals; 99.6%) were LVHs treating the majority of patients (6270 patients; 90.2%). Patients treated at LVHs were more likely to have lower grade and smaller tumors, receive radiotherapy, and undergo incomplete macroscopic (R2) resection. Patients treated at HVHs had lower 30-day readmission rates (1.8% vs 3.4%; P<.001), 30-day (1.9% vs 3.1%; P=.004) and 90-day (3.2% vs 5.7%; P=.007) mortality, longer median OS (76.2 months vs 64.2 months; P<.001), and higher 5-year OS rates (58% vs 52%; P<.001). After controlling for age, sex, insurance status, tumor size, tumor grade, surgical resection margin status, and radiotherapy administration, treatment at an HVH was found to be independently associated with a reduced risk of death (hazard ratio, 0.77; 95% confidence interval, 0.65-0.91 [P=.003]).

conclusionsPrimary RPS are rare tumors, and to our knowledge few surgeons and institutions have significant experience and expertise in their multidisciplinary management and surgical resection. Although additional studies are needed, patient outcomes may be impacted by the case volume and expertise of the treating facility.

Indexed as

Hospitals, High-VolumeHospitals, Low-VolumeAdultAgedAged, 80 and overFemaleHospital MortalityHumansLength of StayMaleMargins of ExcisionMiddle AgedPatient ReadmissionPrognosisRegistriesRetroperitoneal Neoplasmshospital volumeNational Cancer Data Base (NCDB)registryretroperitoneal sarcomasarcoma surgerysarcoma treatmentsoft tissue neoplasmsoft tissue sarcoma

Identifiers

PMID30317543
PMCPMC6289614
OpenAlexW2897836580

What OpenQuestion holds

Textmetadata
LicenceTDM
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.