Article ; Online: Ultrasound Surveillance of Small, Incidentally Detected Gallbladder Polyps: Projected Benefits by Sex, Age, and Comorbidity Level.
Journal of the American College of Radiology : JACR
2023 Volume 20, Issue 10, Page(s) 1031–1041
Abstract: Objective: Incidentally detected gallbladder polyps are commonly encountered when performing upper abdominal ultrasound. Our purpose was to estimate the life expectancy (LE) benefit of ultrasound-based gallbladder surveillance in patients with small (6- ... ...
Abstract | Objective: Incidentally detected gallbladder polyps are commonly encountered when performing upper abdominal ultrasound. Our purpose was to estimate the life expectancy (LE) benefit of ultrasound-based gallbladder surveillance in patients with small (6-7 to <10 mm), incidentally detected gallbladder polyps, accounting for patient sex, age, and comorbidity level. Methods: We developed a decision-analytic Markov model to evaluate hypothetical cohorts of women and men with small gallbladder polyps, with varying age (66-80 years) and comorbidity level (none, mild, moderate, severe). Drawing from current evidence, in the base case, we assumed no increased risk of gallbladder cancer in patients with small gallbladder polyps. To estimate maximal possible LE gains from surveillance, we assumed perfect cancer control consequent to 5 years of surveillance. We varied key assumptions including cancer risk and test performance characteristics in sensitivity analysis. Results: Projected LE gains from surveillance were <3 days across most cohorts and scenarios evaluated. For 66- and 80-year-olds with no comorbidities, LE gains were 1.46 and 1.45 days, respectively, for women, and 0.67 and 0.75 days for men. With 10 years of surveillance, LE gains increased to 2.94 days for 66-year-old women with no comorbidities (men: 1.35 days). If we assumed a 10% increase in gallbladder cancer risk among individuals with polyps, LE gains increased slightly to 1.60 days for 66-year-old women with no comorbidities (men: 0.74 days). Results were sensitive to test performance and surgical mortality. Discussion: Even under unrealistic, optimistic assumptions of cancer control, ultrasound surveillance of incidentally detected small gallbladder polyps provided limited benefit. |
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MeSH term(s) | Male ; Humans ; Female ; Aged ; Aged, 80 and over ; Infant ; Gallbladder Neoplasms/diagnostic imaging ; Gallbladder Neoplasms/epidemiology ; Gallbladder Neoplasms/surgery ; Polyps/diagnostic imaging ; Polyps/epidemiology ; Polyps/surgery ; Ultrasonography ; Comorbidity |
Language | English |
Publishing date | 2023-07-03 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural |
ZDB-ID | 2274861-1 |
ISSN | 1558-349X ; 1546-1440 |
ISSN (online) | 1558-349X |
ISSN | 1546-1440 |
DOI | 10.1016/j.jacr.2023.05.015 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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