Antitumor Activity of Metformin Combined with Locoregional Therapy for Liver Cancer: Evidence and Future Directions.

This article aimed to examine the effect of metformin use on improving outcomes after liver-directed therapy in patients with HCC and identify future directions with the adjuvant use of and potential therapeutic agents that operate on similar mechanistic pathways. Databases were queried to identify pertinent articles on metformin's use as an anti-cancer agent in HCC. Eleven studies were included, with five pre-clinical and six clinical studies. The mean overall survival (OS) and progression-free survival were both higher in the locoregional therapy (LRT) + metformin-treated groups. The outcome variables, including local tumor recurrence rate, reduction in HCC tumor growth and size, tumor growth, proliferation, migration and invasion of HCC cells, HCC cell apoptosis, DNA damage, and cell cycle arrest, showed favorable outcomes in the LRT + metformin-treated groups compared with LRT alone. This systemic review provides a strong signal that metformin use can improve the tumor response after locoregional therapy. Well-controlled prospective trials will be needed to elucidate the potential antitumor effects of metformin and other mTOR inhibitors.

Out-of-Pocket Expenditures for Imaging Examinations: Perspectives From National Patient Surveys Over Two Decades.

PURPOSE: Using national surveys, we longitudinally studied imaging costs-and specifically those paid out-of-pocket (OOP) by patients-over two decades. METHODS: Using 2000 to 2019 Medical Expenditure Panel Survey data, we identified all imaging-focused encounters (mammography, radiography, ultrasonography, and CT and MR [surveyed together in Medical Expenditure Panel Survey]) and calculated mean overall and OOP encounter costs. Effects of sociodemographic, personal, and clinical factors were measured using logistic regression and generalized linear modeling. RESULTS: We identified 102,717 patients (mean 45.6 years; 64.8% female; 58.8% White) undergoing 229,010 imaging-focused encounters. Between 2000 and 2019, mean costs of mammography, radiography, and ultrasonography increased 14.5%, 24.5%, and 40% and total mean cost of CT or MR decreased by 15.1%. OOP costs were incurred by 51%. Overall mean OOP costs increased 89.8% from 2000 to 2019. Mean OOP costs for mammography decreased by 32.9%; mean OOP costs for radiography, ultrasonography, and CT or MR increased 81%, 123.2%, and 61%, respectively. Patients were less likely to incur OOP costs when older, of racial and ethnic minorities, female, or recipients of public only (versus private) insurance. Among those with OOP costs, the presence of comorbidities, lack of insurance, younger age, and history of cancer significantly increased OOP costs. CONCLUSION: Mean overall patient OOP costs for imaging examinations increased significantly and substantially over the last two decades. Lack of insurance, younger age, history of cancer, and other comorbidities were associated with higher OOP costs. As diagnostic imaging utilization increases, patient financial hardship considerations merit further attention.

Length of Stay, Cost, and Outcomes related to Traumatic Subdural Hematoma in inpatient setting in the United States.

OBJECTIVE: In the US, the prevalence of traumatic subdural hematoma (TSDH) continues to increase. Using a nationally representative sample of discharge records of patients with TSDH, the study objectives were to estimate trend in number of TSDH cases, surgical management, inpatient cost, length of stay (LOS), mortality rate, and complication rate; and to identify the association of sociodemographic, clinical and hospital characteristics with complications and mortality. METHOD: We identified patients with a primary diagnosis of TSDH from the National Inpatient Sample (NIS) database from 2010 to 2017. Quarterly and monthly trends were estimated using interrupted time series design. Multivariate logistic regressions measured association between various factors and inpatient death and complications. RESULTS: Number of cases, mean LOS, rate of complication increased. Proportion of patients undergoing surgery, mean inpatient cost, inpatient mortality decreased. Mean inpatient cost was $23,182.40 and LOS was 6.41 days. Odds of inpatient death and complications increased with injury severity score and comorbid conditions requiring use of anticoagulants. Odds of inpatient death were highest among those ≥85 years old and in south and northeast region. CONCLUSION: Given the increase in prevalence of TSDH in USA, additional resources should be allocated toward improving patient outcomes and lowering healthcare costs.