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Neoadjuvant Therapy Versus Upfront Resection for Pancreatic Cancer: The Actual Spectrum and Clinical Burden of Postoperative Complications.
Annals of Surgical Oncology 2018 March
BACKGROUND: Neoadjuvant therapy (NAT) is used for borderline-resectable or locally advanced pancreatic cancer (PDAC) and exhibits promising results in terms of pathological outcomes. However, little is known about its effect on surgical complications.
METHODS: We analyzed 445 pancreatic resections for PDAC from 2014 to 2016 at The Pancreas Institute, Verona University Hospital. The Modified Accordion Severity Grading System and average complication burden (ACB) were used to compare patients treated with NAT with patients who underwent upfront surgery (UFS).
RESULTS: Of 305 pancreaticoduodenectomies (PD), patients treated with NAT (n = 99) had less pancreatic fistula (POPF, 9.1% vs. 15.6%, p = 0.05) without grade C cases, but grade B ACB was increased (0.28 for NAT vs. 0.24 for UFS, p = 0.05). The postpancreatectomy hemorrhage (PPH) rate was lower in the NAT group (9.1% vs. 14.6%, p = 0.02), but ACB grades B (0.37 for NAT vs. 0.26 for UFS, p = 0.03) and C (0.43 for NAT vs. 0.29 for UFS, p = 0.05) were increased. Delayed gastric emptying (DGE) was increased in NAT cases (15.2% vs. 8.3%, p = 0.04), with higher grade C ACB (0.43 for NAT vs. 0.29 for UFS, p = 0.03). Of 94 distal pancreatectomies (DP), NAT patients (n = 26) developed more grade C POPF (11.5% vs. 1.5%, p = 0.04) and DGE (11.5% vs. 2.9%, p = 0.01) without differences in ACB.
CONCLUSIONS: Patients undergoing PD for PDAC after NAT exhibited reduced incidence of POPF and PPH but increased incidence of DGE compared with patients treated with UFS. Among patients developing postoperative complications after PD, those receiving NAT were associated with increased clinical burden.
METHODS: We analyzed 445 pancreatic resections for PDAC from 2014 to 2016 at The Pancreas Institute, Verona University Hospital. The Modified Accordion Severity Grading System and average complication burden (ACB) were used to compare patients treated with NAT with patients who underwent upfront surgery (UFS).
RESULTS: Of 305 pancreaticoduodenectomies (PD), patients treated with NAT (n = 99) had less pancreatic fistula (POPF, 9.1% vs. 15.6%, p = 0.05) without grade C cases, but grade B ACB was increased (0.28 for NAT vs. 0.24 for UFS, p = 0.05). The postpancreatectomy hemorrhage (PPH) rate was lower in the NAT group (9.1% vs. 14.6%, p = 0.02), but ACB grades B (0.37 for NAT vs. 0.26 for UFS, p = 0.03) and C (0.43 for NAT vs. 0.29 for UFS, p = 0.05) were increased. Delayed gastric emptying (DGE) was increased in NAT cases (15.2% vs. 8.3%, p = 0.04), with higher grade C ACB (0.43 for NAT vs. 0.29 for UFS, p = 0.03). Of 94 distal pancreatectomies (DP), NAT patients (n = 26) developed more grade C POPF (11.5% vs. 1.5%, p = 0.04) and DGE (11.5% vs. 2.9%, p = 0.01) without differences in ACB.
CONCLUSIONS: Patients undergoing PD for PDAC after NAT exhibited reduced incidence of POPF and PPH but increased incidence of DGE compared with patients treated with UFS. Among patients developing postoperative complications after PD, those receiving NAT were associated with increased clinical burden.
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