Annals of surgical oncology
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In order to improve prognostic applications and treatment decisions, we report our experiences of visceral pleural surface invasion (VPSI) in non-small cell lung cancers (NSCLCs) with pleural retraction. ⋯ VPSI is an independent factor for poor prognosis in NSCLCs, regardless of lymph node status. Stage IB NSCLCs with PL1 pleural invasion are associated with a survival rate similar to that of stage IA NSCLCs and could be classified as T1 lesions. While surgical treatment is adequate in these patients, stage IB NSCLCs with VPSI have poor prognosis, and these patients should be considered for adjuvant chemotherapy.
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This study was designed to evaluate the long-time outcome of patients with colorectal liver metastasis (CRLM) undergoing different types of therapy and identify prognosis factors. ⋯ Patients with CRLM could get long-term survival benefit from different types of therapy, and resection of liver metastases was the optimal strategy. A predictive model using these above five factors may be of use in stratifying patients who may benefit from intensive surveillance and adjuvant therapy.
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Pathologic response to preoperative chemotherapy for colorectal liver metastases (CLM) is associated with survival after hepatectomy. Histologically, dominant response patterns include fibrosis, necrosis and/or acellular mucin, but some of these changes can appear without previous chemotherapy and their individual correlation with outcome is unknown. ⋯ Fibrosis is the predominant chemotherapy-related pathologic alteration driving the association of treatment response with survival after CLM resection. Necrosis in CLM is not related to chemotherapy or outcome.
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The interval between neoadjuvant chemoradiotherapy and surgery for rectal cancer has arbitrarily been set at 6-8 weeks. However, tumor regression is variable. This study aimed to evaluate whether the interval between neoadjuvant therapy and surgery had an impact on pathologic response and on surgical and oncologic outcome. ⋯ In this retrospective analysis, there seems to be an association between a longer interval after neoadjuvant chemoradiotherapy and complete pathologic response without affecting postoperative morbidity and length of hospital stay, and with no detrimental effect on oncologic outcome.
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To evaluate the protection of the urogenital function after robot-assisted total mesorectal excision (R-TME) for rectal cancer compared to those of laparoscopic TME (L-TME). ⋯ R-TME for rectal cancer is associated with earlier recovery of normal voiding and sexual function compared to patients who underwent L-TME, although this result needs to be verified by larger prospective comparative studies.