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Journal and News Scan
The EJCTS and ICVTS are publishing a series of Statistical Primers to help clinicians perform and interpret research. In this article, Hickey and colleagues provide a practical introduction to repeated-measures analysis. The authors focus on linear mixed models, which are more amenable to real world data than other methods given their ability to handle mistimed or randomly missing longitudinal data. This primer on a more advanced statistical method could provide crucial information to increase the impact of your next manuscript.
Gosev and colleagues evaluated the baseline characteristics and outcomes in 156 patients from 12 centers who survived at least four years on left ventricular assist device (LVAD) support. Among this group of patients, mean survival was 7.1 years (95% CI 6.7 to 7.5 years). The average readmission rate was 1.1 ± 0.9 per patient-year, and the authors suggest that this low rate of complications could be responsible for the long survival seen in these patients.
70-year-old Arnold Schwarzenegger has undergone successful redo heart surgery at Ceders-Sinai Hospital, after an initial attempt to replace his pulmonic valve percutaneously. He famously underwent an attempted Ross Procedure in 1997, and the pulmonic valve left from that operation now required repeat surgery.
Apparently everything went well, and his first words were "I'm back!"
Higher risk of death from coronary artery disease was noted for Americans who drank higher quantities of sugary beverages but not for those who ate more sugary foods.
Drugs and Devices
Aymara craftswomen in Bolivia weave textile-art-based patterns into percutaneous devices for occluding structural heart defects in children.
Several groups, including the American Lung Association and the American Heart Association, have sued the US Food and Drug Administration over their decision to delay implementation of a rule that would regulate e-cigarette marketing like marketing of tobacco products.
Research, Trials, and Funding
A study of data from the German Aortic Valve Registry suggests that rapid deployment valves lead to shorter surgery duration but not to better outcomes than conventional biological valves.
An observational study from Denmark, published in JAMA Cardiology, found that the risk of thromboembolism from atrial fibrillation (AFib) that began after coronary artery bypass grafting was lower than that seen with nonsurgical, nonvalvular AFib, despite a lower rate of oral anticoagulation therapy.
Researchers in South Africa find that silver-based anticancer drugs show promise in preclinical studies, potentially representing an opportunity to design chemotherapeutic drugs on a less expensive starting material than the current platinum-based drugs.
A brief readable editorial on a retrospective analysis of the costs of coronary artery bypass grafting in Virginia, USA, which suggests the value of enhanced recovery in coronopathy.
A succinct balanced editorial advancing, amongst other things, the position for initial nonintervention for submassive pulmonary embolism.
Hassan and colleagues performed a retrospective analysis of 81 patients who presented for open cardiac surgery while receiving novel oral anticoagulant (NOAC) therapy. Patients were off NOACs for a median of 4 days (IQR, 3 - 6 days) prior to surgery. The authors found the length of the NOAC withdrawal period was significantly related to the postoperative 24-hour drainage volume, which was 480 ml (IQR, 350 - 600 ml). Additionally, 6.2% of patients required rethoracotomy to investigate bleeding. The authors suggest that 10 days of NOAC withdrawal might be preferable prior to elective cardiac surgery.
This survey of general surgeons in the US who had a pregnancy during surgical training identified a number of challenges that may influence career satisfaction. These included inadequate scheduling support, lactation facilities, and mentoring. 30% of participants would advise a female medical student not to pursue a surgical career.
This article examines an interesting concept for preparing for mitral repair. This may have useful assistance in complex valve repairs and in the early stages of training of young surgeons.