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INTRODUCTION: The current study, focusing on a significant US (United States) colorectal cancer (CRC) burden, employs machine learning for predicting future rates among young population. METHODS: CDC WONDER data from 1999 to 2022 was analyzed for CRC-related mortality in patients younger than 56 years. Temporal trends in age-adjusted mortality rates (AAMRs) were assessed via Joinpoint software. Future mortality rates were forecasted using an optimal Autoregressive Integrated Moving Average (ARIMA) model. RESULTS: From 1999 to 2022, we observed 150,908 deaths with CRC listed as the underlying cause, predominantly in males, with an upward trend in AAMR. The ARIMA model projects an increase in CRC mortality by 2035, estimating an average annual percent change (AAPC) of 1.3% overall, 1% for females, and 1.5% for males. CONCLUSION: Our study findings emphasize the need for more robust preventive measures to reduce future CRC mortality among younger population. These results have significant implications for public health policies, particularly for males under 56, and underscore the importance of early screening and lifestyle modifications.

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INTRODUCTION AND OBJECTIVES: The rate of liver transplantation is increasing among the elderly population; however, data is limited on the post-liver transplantation outcomes in patients ≥70 years. Given the scarcity in liver allograft resources, a meta-analysis on the outcomes of liver transplantation in patients ≥70 years is warranted. MATERIALS AND METHODS: Multiple databases were searched through March 2022 for studies that reported on the outcomes of liver-transplantation in patients ≥70 years. Meta-analysis was conducted using the random-effects model and heterogeneity was assessed using the I2 statistics. RESULTS: Ten studies were included that analyzed 162,725 patients. The pooled rate of 1-year, 3-years and 5-years post liver transplant survival for patients ≥70 years was 78.7% (72.6-83.7; I2=74%), 61.2% (52.3-69.5; I2=87%), and 48.9% (39.3-58.6; I2=96%), respectively. The corresponding 1-year, 3-years and 5-years survival for patients <70 years were 86.6% (82.4-89.9; I2=99%), 73.2% (63-81.3; I2=99%), and 70.1% (66.8-73.2; I2=99%); respectively. Descriptive p-values of comparison were statistically significant at 1-year and 5-years (p = 0.02 and <0.001). The pooled rate of perioperative complications in patients ≥70 years was 40.7% (26.2-57; I2=93%). The pooled rate of graft failure in patients ≥70 years was 6.7% (3.3-13.1; I2=93%) and in patients <70 years was 3.7% (1-12.4; I2=99%). The pooled rate of perioperative mortality in patients ≥70 years was 16.6% (7.6-32.5; I2=99%) and in patients <70 years was 0.8% (0-33.1; I2=88%). CONCLUSION: Patients ≥70 years undergoing liver transplantation seem to demonstrate significantly lower 1-year and 5-year survival rates as compared to patients <70 years, albeit limited by heterogeneity.

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BACKGROUND: POEM has been successfully performed in patients with spastic esophageal disorders (SED), such as diffuse esophageal spasm, jackhammer esophagus, and type 3 achalasia. We performed a systematic review and meta-analysis to evaluate its efficacy in these patients and if total average myotomy length and prior medical or endoscopic treatments affected clinical success. METHODS: PubMed, EMBASE, Google-Scholar, Scopus, and Cochrane Review were searched for studies on POEM in SED from 2008 to September 2018. Clinical success was determined by Eckardt score (≤ 3) at follow-up. Sub-group analysis was performed based on myotomy length and evaluates the effect of prior treatments on clinical success. RESULTS: 9 studies with 210 patients were included in the final analysis. We found that the pooled rate of clinical success for POEM was 89.6% (95% CI 83.5-93.1, 95% PI 83.4-93.7, I2 = 0%). In three studies (50 patients), where total myotomy length was < 10 cm, the pooled rate of clinical success was 91.1% (95% CI 79.5-96.4, I2 = 0%). In six studies (160 patients), the length was > 10 cms and the pooled rate of clinical success was 89.1% (95% CI 83.0-93.2, I2 = 0%). The difference between these results was not statistically significant (p = 0.69). Additionally, a meta-regression analysis showed that prior treatment status did not significantly affect the primary outcome (p = 0.43). CONCLUSIONS: While it is well known that POEM is a safe and effective treatment for spastic esophageal disorders, we conclude that variation in total myotomy length and prior endoscopic or medical treatments did not have a significant effect on clinical success.

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Background While endoscopic retrograde cholangiopancreatography (ERCP) is usually performed in the prone position, some studies have advocated for ERCP in the supine position. Studies comparing the technical success and safety outcomes have shown variable results. We performed a systematic review and meta-analysis of studies reporting the comparison between the two positions for ERCP outcomes. Methods We conducted a search of electronic databases and conference proceedings including PubMed, EMBASE, and Web of Science databases (from inception through October 2016) to identify studies that reported the comparison of technical success and safety outcomes between supine and prone ERCP. The primary outcome was to estimate the pooled rates of technical success. The secondary outcome was to estimate the risks of complications, such as cardiopulmonary and post-ERCP pancreatitis (PEP). Results Six studies reporting on 309 supine and 1415 prone ERCPs were identified. The pooled technical success rates for completion of ERCP in supine and prone positions were 89.1 % (95 %CI = 80.9 - 94.0) and 95.6 % (95 %CI = 91.5 - 97.7), respectively. The pooled rates for complications (cardiopulmonary and PEP) in the supine position were 37.5 % (95 %CI = 19.1 - 60.3) and 3.5 % (95 %CI = 1.6 - 7.3), respectively. The pooled rates for complications (cardiopulmonary and PEP) in the prone position were 41.0 % (95 %CI = 20.9 - 64.8) and 3.9 % (95 %CI = 2.4 - 6.4), respectively. The mean time required for the procedure was 30 minutes and 29.8 minutes for supine and prone positions, respectively. Substantial heterogeneity was noted in the analysis. Conclusion Prone ERCPs have a higher technical success rate with a slightly lower mean duration but a higher number of adverse events. The decision with regard to patient position should be made after evaluating the overall clinical scenario.