Impact of Tumor Size and Management on Survival in Small Gastric Gastrointestinal Stromal Tumors

Background Society guidelines remain inconsistent on the role of endoscopic and radiographic surveillance as an alternative to surgical resection of small gastric gastrointestinal stromal tumors (GISTs). Herein, we aimed to assess survival among patients with gastric GISTs undergoing observation ver...

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Veröffentlicht in:Journal of gastrointestinal surgery 2023-10, Vol.27 (10), p.2076-2084
Hauptverfasser: Rhodin, Kristen E, DeLaura, Isabel F, Horne, Elizabeth, Bartholomew, Alex, Howell, Thomas C, Kanu, Elishama, Masoud, Sabran, Lidsky, Michael E, Nussbaum, Daniel P, Blazer, Dan G
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container_end_page 2084
container_issue 10
container_start_page 2076
container_title Journal of gastrointestinal surgery
container_volume 27
creator Rhodin, Kristen E
DeLaura, Isabel F
Horne, Elizabeth
Bartholomew, Alex
Howell, Thomas C
Kanu, Elishama
Masoud, Sabran
Lidsky, Michael E
Nussbaum, Daniel P
Blazer, Dan G
description Background Society guidelines remain inconsistent on the role of endoscopic and radiographic surveillance as an alternative to surgical resection of small gastric gastrointestinal stromal tumors (GISTs). Herein, we aimed to assess survival among patients with gastric GISTs undergoing observation versus surgical resection, stratified by tumor size. Methods The National Cancer Database (NCDB) was queried for gastric GISTs < 2 cm diagnosed from 2010-2017. Patients were stratified by management strategy—observation vs surgical resection. The primary outcome, overall survival (OS), was examined with Kaplan-Meier and multivariable Cox proportional hazard methods. Subgroup analyses were conducted on tumors < 1 cm and 1–2 cm in size. Results Altogether, 1208 patients were identified: 439 (36.3%) undergoing observation and 769 (63.7%) receiving surgical resection. In the overall cohort, patients undergoing surgical resection demonstrated improved survival (93.6 vs. 88.8% 5-year OS, p =0.02). In multivariable analysis, upfront surgical resection was not associated with a reduction in mortality; however, there was a significant interaction with tumor size. For patients with tumors < 1 cm, there was no difference in survival based on management strategy. However, resection of tumors 1–2 cm was associated with improved survival relative to surveillance. Conclusions While surgical resection and surveillance were associated with similar survival for patients with gastric GISTs < 1 cm, this NCDB analysis suggests that patients with tumor size ≥ 1 cm may benefit from upfront surgical resection. Prospective studies comparing these two approaches and their impact on recurrence-free and disease-specific survival are needed to better align consensus guidelines and recommendations.
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Herein, we aimed to assess survival among patients with gastric GISTs undergoing observation versus surgical resection, stratified by tumor size. Methods The National Cancer Database (NCDB) was queried for gastric GISTs &lt; 2 cm diagnosed from 2010-2017. Patients were stratified by management strategy—observation vs surgical resection. The primary outcome, overall survival (OS), was examined with Kaplan-Meier and multivariable Cox proportional hazard methods. Subgroup analyses were conducted on tumors &lt; 1 cm and 1–2 cm in size. Results Altogether, 1208 patients were identified: 439 (36.3%) undergoing observation and 769 (63.7%) receiving surgical resection. In the overall cohort, patients undergoing surgical resection demonstrated improved survival (93.6 vs. 88.8% 5-year OS, p =0.02). In multivariable analysis, upfront surgical resection was not associated with a reduction in mortality; however, there was a significant interaction with tumor size. For patients with tumors &lt; 1 cm, there was no difference in survival based on management strategy. However, resection of tumors 1–2 cm was associated with improved survival relative to surveillance. Conclusions While surgical resection and surveillance were associated with similar survival for patients with gastric GISTs &lt; 1 cm, this NCDB analysis suggests that patients with tumor size ≥ 1 cm may benefit from upfront surgical resection. Prospective studies comparing these two approaches and their impact on recurrence-free and disease-specific survival are needed to better align consensus guidelines and recommendations.</description><identifier>ISSN: 1091-255X</identifier><identifier>ISSN: 1873-4626</identifier><identifier>EISSN: 1873-4626</identifier><identifier>DOI: 10.1007/s11605-023-05779-6</identifier><identifier>PMID: 37433950</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Biopsy ; Cancer ; Comorbidity ; Demographics ; Endoscopy ; Gastroenterology ; Gastrointestinal cancer ; Gastrointestinal Stromal Tumors - diagnostic imaging ; Gastrointestinal Stromal Tumors - surgery ; Gastrointestinal surgery ; Humans ; Laparoscopy - methods ; Medical prognosis ; Medicine ; Medicine &amp; Public Health ; Mortality ; Oncology ; Original Article ; Patients ; Prospective Studies ; Retrospective Studies ; Stomach Neoplasms - pathology ; Stomach Neoplasms - surgery ; Surgery ; Surveillance ; Survival analysis ; Treatment Outcome ; Tumors ; Variance analysis</subject><ispartof>Journal of gastrointestinal surgery, 2023-10, Vol.27 (10), p.2076-2084</ispartof><rights>The Society for Surgery of the Alimentary Tract 2023. 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Herein, we aimed to assess survival among patients with gastric GISTs undergoing observation versus surgical resection, stratified by tumor size. Methods The National Cancer Database (NCDB) was queried for gastric GISTs &lt; 2 cm diagnosed from 2010-2017. Patients were stratified by management strategy—observation vs surgical resection. The primary outcome, overall survival (OS), was examined with Kaplan-Meier and multivariable Cox proportional hazard methods. Subgroup analyses were conducted on tumors &lt; 1 cm and 1–2 cm in size. Results Altogether, 1208 patients were identified: 439 (36.3%) undergoing observation and 769 (63.7%) receiving surgical resection. In the overall cohort, patients undergoing surgical resection demonstrated improved survival (93.6 vs. 88.8% 5-year OS, p =0.02). In multivariable analysis, upfront surgical resection was not associated with a reduction in mortality; however, there was a significant interaction with tumor size. 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subjects Biopsy
Cancer
Comorbidity
Demographics
Endoscopy
Gastroenterology
Gastrointestinal cancer
Gastrointestinal Stromal Tumors - diagnostic imaging
Gastrointestinal Stromal Tumors - surgery
Gastrointestinal surgery
Humans
Laparoscopy - methods
Medical prognosis
Medicine
Medicine & Public Health
Mortality
Oncology
Original Article
Patients
Prospective Studies
Retrospective Studies
Stomach Neoplasms - pathology
Stomach Neoplasms - surgery
Surgery
Surveillance
Survival analysis
Treatment Outcome
Tumors
Variance analysis
title Impact of Tumor Size and Management on Survival in Small Gastric Gastrointestinal Stromal Tumors
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