Impact of signet ring cells on overall survival in peritoneal disseminated appendix cancer treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy.

INTRODUCTION: To determine the effect of signet ring cell (SRC) histopathology in appendix cancer with peritoneal dissemination on overall survival (OS) in patients undergoing cytoreductive surgery (CRS) and heated intraperitoneal chemotherapy (HIPEC). MATERIALS AND METHODS: Retrospective cohort study from a prospectively maintained database of patients that underwent CRS/HIPEC for appendix cancer from April 1999 to December 2019. RESULTS: 255 patients were identified. 174 had high-grade disease with no SRC component, 35 with a low count of SRC and 46 with a high count of SRC. Median OS without SRC was 93.8 months vs 58.2 months for low count SRC and 23.7 months for high count SRC (P < 0.001). 5-year OS was 60% for patients with no SRC, 35.5% and 10% in those with low count and high count SRC respectively. On multivariate analysis, presence of SRC and complete cytoreduction score were identified as independent factors that affect OS. CONCLUSION: The presence of SRC in appendix cancer with peritoneal dissemination is associated with worse OS when compared to an absence of SRC in patients undergoing CRS/HIPEC.

Volume-Time Index Is Not an Indicator of Outcome for Patients Undergoing CRS/HIPEC for Treatment of High-Grade Appendiceal Carcinomatosis.

BACKGROUND/AIM: Completeness of cytoreduction score (CC-score) and tumour grade have been shown to be independent prognostic factors in patients undergoing cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) for the treatment of high-grade appendiceal carcinomatosis (PMCA). In patients with colorectal cancer with peritoneal metastases (CRPM) that undergo CRS/HIPEC, volume time index (VTI) has been shown to be an independent prognostic factor for overall survival (OS). This analysis was conducted to evaluate VTI as a prognostic factor in PMCA. PATIENTS AND METHODS: We performed A retrospective cohort study of 131 patients who underwent CRS-HIPEC for PMCA from 1996 to 2017. VTI was calculated and analyses were performed to determine the association with patients' outcomes. RESULTS: Median overall survival by high vs. low VTI groups were 69 months (95%CI=45-NA) vs. 63 months [95% Confidence Interval (CI)=48-not available (NA)], with an associated difference in 5-year survival rates of 52.1 (95%CI=39.5-68.8) vs. 50.6 (95%CI=35.2-72.6) respectively, with a non-significant p-value of 0.968. For the 82 patients with complete recurrence data, the median RFS stratified by high vs. low VTI were 16 months (95%CI=10-25) vs. 20 months (95%CI=13-34) respectively, with no statistically significant difference in 5-year recurrence-free survival (RFS). CONCLUSION: VTI for PMCA was not shown to be correlated with overall survival (OS) for patients undergoing CRS/HIPEC, and suggests that the rate of tumour growth does not affect the patients' outcome. Neither high PCI nor rapid tumour growth following primary tumour resection should, therefore, be a contraindication for CRS/HIPEC in patients with PMCA.

Factors influencing donor and recipient decision making in adult-to-adult living donor liver transplantation: a survey of a non-transplant population.

BACKGROUND: This study aimed to (i) investigate the factors that influence donor and recipient decision making in adult-to-adult living donor liver transplantation (AALDLT); (ii) quantify the level of risk that would be acceptable to potential donors; and (iii) determine from whom an individual would be willing to receive a donation. METHODS: A self-administered questionnaire using hypothetical scenarios centred on AALDLT was created and administered to participants recruited from the waiting room of an orthopaedic outpatient clinic at a teaching hospital in Sydney (n = 105). The questionnaire asked participants to consider scenarios in which they either (i) were a potential donor for a family member or close friend or (ii) themselves required a liver transplant. RESULTS: Ninety-five (90%) participants expressed an in-principal willingness to consider living organ donation. The factors most important in deciding to be living liver donors were the probability of a good outcome for the recipient, the likelihood of the potential recipient's survival until a deceased donor liver became available and the risk of donor death. Donor death was also rated as the least acceptable donor outcome. Participants expressed a willingness to receive a donation from all proposed donor groups equally. CONCLUSIONS: The acceptability of hypothetical living organ donation was very high in the population group studied. Participants were also willing to accept significantly higher risks of complications from organ donation than they would actually be exposed to. Clinicians should feel encouraged to discuss the risks and benefits of living donation frankly with patients and their families.

The Effect of Prehospital Intubation on Treatment Times in Patients With Suspected Traumatic Brain Injury.

OBJECTIVE: This study examines whether, in patients requiring intubation with moderate to severe traumatic brain injury (TBI), prehospital intubation compared with emergency department intubation leads to a reduction in treatment times and time to a computed tomographic (CT) scan. METHODS: A retrospective cohort study compared adult patients with a Glasgow Coma Score of less than 14 with a suspected TBI who underwent intubation, either prehospital or on arrival to the emergency department. RESULTS: Prehospital intubation was associated with a decreased time from emergency department arrival to CT scan compared with emergency department intubation (43 vs. 54 minutes, P < .001). The prehospital intubation group had a longer median scene time (42 vs. 17 minutes, P ≤ .001), longer median transport times (32 vs. 14 minutes, P ≤ .001), and longer total treatment times (90 vs. 73 minutes, P = .007). CONCLUSIONS: Patients intubated in the prehospital setting spend a longer time at the scene but a shorter amount of time in the emergency department before brain imaging. Prehospital intubation may lead to earlier control of airway and ventilation. The minority of intubated TBI patients required urgent neurosurgical intervention. Overall prehospital intubation shows no significant survival advantage for the patients when compared with emergency department intubation.