Magnetic sphincter augmentation: laparoscopic or robotic approach?

Gastroesophageal reflux disease (GERD)-the pathologic reflux of gastric contents into the distal esophagus-is the most common benign disorder of the esophagus. Its incidence is at 10-20% of the Western population and it yearly cost of treatment in the USA in 9.3 billion dollars. Although first line treatment for the disorder is medical therapy with proton pump inhibitors, an estimated 30-40% of patients will continue to experience medically refractory GERD. In this population anti-reflux surgery can be offered. Traditional anti-reflux surgery is done via the Nissen fundoplication, a technically difficult surgery with uncomfortable side effects of bloating and inability to belch. Magnetic sphincter augmentation (MSA) of the lower esophagus via the LINX device was introduced a less technically challenging alternative to the Nissen. The LINX provides fewer side effects of bloating and inability to belch and has been adapted widely to the practice of anti-reflux surgery. In this paper we discuss the progression of surgical practices with the LINX, including an analysis of the laparoscopic and robotic approaches to MSA device implantation.

Correlation between air quality and lung cancer incidence: A county by county analysis.

BACKGROUND: Poor air quality has previously been associated with lung cancer development, but the risks associated with regional differences in air quality are poorly understood. We investigated the association of air quality indices with development of lung cancer in all Texas counties. METHODS: Lung cancer incidence, air quality indicators (particulate matter <2.5 µm, radon levels, oil well density), and known risk factors were obtained using data from the Texas Commission on Environmental Quality and the Texas Cancer Registry. Linear regression models were constructed to correlate air quality indicators with lung cancer incidence and advanced stage at diagnosis (stage III or IV), while controlling for other patient characteristics. RESULTS: Lung cancer incidence ranged from 27.6 to 103.4 cases per 100,000 people. In the study, 2.5 µm was associated with increased lung cancer incidence (ß = 4.38, P < .0001), but not radon levels (ß = -2.70, P = .41). Air quality indicators were not significantly associated with an advanced cancer diagnosis. CONCLUSION: There are wide differences in the incidence of lung cancer across Texas. These differences seem to be related to air quality. Identifying high-risk areas may help to guide strategies such as implementation of targeted lung cancer screening programs.

Cost of benign versus oncologic colon resection among fee-for-service Medicare enrollees.

BACKGROUND AND OBJECTIVES: Reimbursement for colonic pathology by the Centers for Medicare and Medicaid Services (CMS) are grouped in the Medicare Severity-Diagnosis Related Groups (MS-DRG). With limited available data, we sought to compare the relative impact of malignant vs benign colonic pathology on reimbursement under the MS-DRG system. METHODS: We used 5% national Medicare data from 2011 to 2014. Patients were classified as having benign disease or malignancy. Descriptive statistics and multivariate regression analysis were used to evaluate the surgical approach and health resource utilization. RESULTS: Of 10 928 patients, most were Non-Hispanic White women. The majority underwent open colectomy in both cohorts (P < .001). Colectomy for benign disease was associated with higher total charges (P < .001) and a longer length of stay (P = .0002). Despite higher charges, payments were not significantly different between the cohorts (P = .434). Both inpatient mortality and discharge to a rehab facility were higher in the oncologic group (P < .001). CONCLUSION: Payment methodology for colectomy under the CMS MS-DRG system does not appear to accurately reflect the episode cost of care. The data suggest that inpatient costs are not fully compensated. A transition to value-based payments with expanded episode duration will require a better understanding of unique costs before adoption.

Recombinase Polymerase Amplification Compared to Real-Time Polymerase Chain Reaction Test for the Detection of Fasciola hepatica in Human Stool.

Fasciola hepatica is the most widely distributed trematode infection in the world. Control efforts may be hindered by the lack of diagnostic capacity especially in remote endemic areas. Polymerase chain reaction (PCR)-based methods offer high sensitivity and specificity but require expensive technology. However, the recombinase polymerase amplification (RPA) is an efficient isothermal method that eliminates the need for a thermal cycler and has a high deployment potential to resource-limited settings. We report on the characterization of RPA and PCR tests to detect Fasciola infection in clinical stool samples with low egg burdens. The sensitivity of the RPA and PCR were 87% and 66%, respectively. Both tests were 100% specific showing no cross-reactivity with trematode, cestode, or nematode parasites. In addition, RPA and PCR were able to detect 47% and 26% of infections not detected by microscopy, respectively. The RPA adapted to a lateral flow platform was more sensitive than gel-based detection of the reaction products. In conclusion, the Fasciola RPA is a highly sensitive and specific test to diagnose chronic infection using stool samples. The Fasciola RPA lateral flow has the potential for deployment to endemic areas after further characterization.