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Delay in Treatment Initiation Increases Mortality in Non-Metastatic Extrahepatic Bile Duct Cancer
Annals of Surgical Oncology ; 29(SUPPL 2):S443, 2022.
Article in English | EMBASE | ID: covidwho-1928242
ABSTRACT

INTRODUCTION:

Time from diagnosis to treatment initiation for many cancers is lengthening. During the COVID pandemic, many institutions were forced to postpone cancer treatment to reallocate resources, despite the unclear impact of treatment delays. This study sought to investigate the association between time to treatment initiation (TTI) and overall survival in patients with hepatopancreatobiliary (HPB) cancers.

METHODS:

The National Cancer Database (NCDB) was queried for patients diagnosed with de novo cancers of the pancreas, liver, and intrahepatic and extrahepatic bile ducts between 2004 and 2017. Kaplan-Meier survival analysis and Cox regression were used to investigate the association between TTI and overall survival for each cancer type, stratified by stage. Multivariable linear regression identified factors associated with longer TTI.

RESULTS:

Of 318,931 patients with HPB cancer, median TTI across all cancers was 31 days, ranging from 26 days for pancreas cancer to 48 days for liver cancer. Longer TTI was associated with increased mortality in patients with stages I, II, and III extrahepatic bile duct (EHBD) cancer (Figure 1), and stage I pancreatic adenocarcinoma. Compared to TTI of 3 to 30 days, the risk-adjusted hazard ratios for stage I EHBD cancer for TTI 31 to 60, 61 to 90, and ≥90 days were 1.17 [95% CI 1.07-1.29], 1.39 [1.21-1.59], and 1.63 [1.40-1.90], respectively. For the same time frames, hazard ratios in stage I pancreatic cancer were 1.08 [1.03-1.13], 1.19 [1.11-1.28], and 0.99 [0.90-1.09], respectively. Factors most strongly associated with increased TTI for all cancers included treatment with radiation only (β = +14.1 days, p< 0.001), early stage disease (+13.8 days for stage I vs. stage IV, p< 0.001), Black race (+4.4 days, p< 0.001), Hispanic ethnicity (+4.2 days, p< 0.001), and treatment in the West (+3.9 days vs. Northeast, p< 0.001).

CONCLUSIONS:

Delayed initiation of definitive therapy leads to increased mortality in stage I-III EHBD and stage I pancreatic cancer. Some patients, including Blacks and Hispanics, are more likely to experience delayed care. Treatment initiation for these cancers should be expedited, and pandemic-related postponements should be avoided if possible.
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Full text: Available Collection: Databases of international organizations Database: EMBASE Language: English Journal: Annals of Surgical Oncology Year: 2022 Document Type: Article

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Full text: Available Collection: Databases of international organizations Database: EMBASE Language: English Journal: Annals of Surgical Oncology Year: 2022 Document Type: Article