Annals of surgery
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To assess the relevance of the International Study Group of Liver Surgery (ISGLS) definition of posthepatectomy liver failure compared with 2 well-established criteria, 50-50 and PeakBili>7, as early predictors of posthepatectomy outcome. ⋯ ISGLS definition was less discriminatory than 50-50 and PeakBili>7 criteria in identifying patients at risk of posthepatectomy major complications or death.
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To compare outcomes following liver resection of colorectal metastases (CRLM) from mucinous adenocarcinoma (Muc-CRLM) versus nonmucinous adenocarcinoma (non-Muc-CRLM). ⋯ Muc-CRLM patients strongly differed from non-Muc-CRLM patients, showing a lower chemotherapy response and higher K-ras mutation prevalence. Muc-CRLM appears to be a separate disease, which is associated with worse survival and aggressive rarely re-resectable recurrences.
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After rectal resection for adenocarcinoma, pathological examination may reveal invasion of the distal margin (DM) and/or a circumferential resection margin of the tumor (CRM-T) or of involved nodes (CRM-N) less than or equal to 1 mm. Such findings transform a planned R0 resection to R1. ⋯ R1 resection is associated with a worse prognosis, but local recurrence rate does not differ significantly from matched R0 resections. The difference was observed for distant recurrences, especially lung, favoring the use of chemotherapy and close surveillance of the thorax.
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Because neural invasion (NI) is still inconsistently reported and not well characterized within gastrointestinal malignancies (GIMs), our aim was to determine the exact prevalence and severity of NI and to elucidate the true impact of NI on patient's prognosis. ⋯ NI prevalence and NI severity strongly vary within GIMs. Determination of NI severity in GIMs is a more precise tool than solely recording the presence of NI and revealed dismal prognostic impact on patients with AEG-II/III and PC. Evidently, NI is not a concomitant side feature in GIMs and, therefore, deserves special attention for improved patient stratification and individualized therapy after surgery.
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To assess whether recent advances, such as intersphincteric resection (ISR) or local excision (LE) if a suspicion of complete tumor response after radiochemotherapy (RCT), could have modified the rate of end stoma (ES) in low rectal cancer treatment. ⋯ Management of rectal cancer with colorectal anastomosis and coloanal anastomosis with partial ISR allowed to obtain a 38% ES rate (71/189); the additional use of total ISR decreased this rate to 22% (39/189). Selective use of LE reduced this rate to only 12% (22/189). Nowadays, recent advances lead to a paradigm shift, with only 12% ES rate in low rectal cancer.