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Across 14 specialist centres in Korea, Japan, Chile and the United States, people with a gallbladder cancer that had just reached the muscle layer did equally well whether or not they had a second, bigger operation: about 95 in 100 were alive and free of the disease at five years either way.
Retrospective study of 272 patients with T1b gallbladder cancer resected at 14 centres with specialised hepatobiliary surgeons and pathologists; 237 qualified for analysis (90 men, 147 women). Simple cholecystectomy was performed in 116 (48.9 percent) and extended cholecystectomy in 121 (51.1 percent). Five-year disease-specific survival was 94.6 percent overall and did not differ between simple and extended cholecystectomy (93.7 versus 95.5 percent, p=0.496), in America (82.3 versus 100 percent, p=0.249) or Asia (98.6 versus 95.2 percent, p=0.690), nor by lymph node metastasis (p=0.688) or tumour location (p=0.474).
The strongest data against routine re-resection for T1b tumours, which guidelines still recommend. A prospective study or registry with standardised pathology is the missing step; the authors' own conclusion is that extended cholecystectomy is not needed for T1b.
Shares Test whether T1b gallbladder cancer needs the second operation at all, Incidental gallbladder cancer (found after cholecystectomy), Radical (extended) cholecystectomy, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials and the tag gallbladder-evidence.
Shares Incidental gallbladder cancer (found after cholecystectomy), TNM staging, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.
Shares Incidental gallbladder cancer (found after cholecystectomy), Radical (extended) cholecystectomy, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.
Shares Incidental gallbladder cancer (found after cholecystectomy), Radical (extended) cholecystectomy, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.
Shares Incidental gallbladder cancer (found after cholecystectomy), Radical (extended) cholecystectomy, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.
Shares Incidental gallbladder cancer (found after cholecystectomy), Radical (extended) cholecystectomy, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.
Shares Incidental gallbladder cancer (found after cholecystectomy), Radical (extended) cholecystectomy, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Gallbladder cancer and the tag gallbladder-evidence.
Shares Incidental gallbladder cancer (found after cholecystectomy), Radical (extended) cholecystectomy, Gallbladder cancer roadmap: from a chance finding at gallstone surgery to a disease with its own trials, Trial design, endpoints and cost and the tag gallbladder-evidence.