IMPORTANCE Infective endocarditis is a life-threating condition with annual mortality of as much as 40% and is associated with embolic events in as many as 80% of cases. These embolic events have notable prognostic implications and have been linked to increased length of stay in intensive care units and mortality. A vegetation size greater than 10 mm has often been suggested as an optimal cutoff to estimate the risk of embolism, but the evidence is based largely on small observational studies. OBJECTIVE To study the association of vegetation size greater than 10 mm with embolic events using meta-analytic techniques. DATA SOURCES A computerized literature search of all publications in the PubMed and EMBASE databases from inception to May 1, 2017, was performed with search terms including varying combinations of infective endocarditis, emboli, vegetation size, pulmonary infarct, stroke, splenic emboli, renal emboli, retinal emboli, and mesenteric emboli. This search was last assessed as being up to date on May 1, 2017. STUDY SELECTION Observational studies or randomized clinical trials that evaluated the association of vegetation size greater than 10 mm with embolic events in adult patients with infective endocarditis were included. Conference abstracts and non-English language literature were excluded. The search was conducted by 2 independent reviewers blinded to the other's work. DATA EXTRACTION AND SYNTHESIS Following PRISMA guidelines, the 2 reviewers independently extracted data; disputes were resolved with consensus or by a third investigator. Categorical dichotomous data were summarized across treatment arms using Mantel-Haenszel odds ratios (ORs) with 95% CIs. Heterogeneity of effects was evaluated using the Higgins I 2 statistic. RESULTS The search yielded 21 unique studies published from 1983 to 2016 with a total of 6646 unique patients with infective endocarditis and 5116 vegetations with available dimensions. Patients with a vegetation size greater than 10 mm had increased odds of embolic events (OR, 2.28; 95% CI, 1.71-3.05; P < .001) and mortality (OR, 1.63; 95% CI, 1.13-2.35; P = .009) compared with those with a vegetation size less than 10 mm. CONCLUSIONS AND RELEVANCE In this meta-analysis of 21 studies, patients with vegetation size greater than 10 mm had significantly increased odds of embolism and mortality. Understanding the risk of embolization will allow clinicians to adequately risk stratify patients and will also help facilitate discussions regarding surgery in patients with a vegetation size greater than 10 mm.

Objects. Myocardial revascularization is performed preferentially with internal mammary artery grafts. Pedicle preparation and pharmacologic vasodilatory treatment vary greatly. Objective measurements are difficult since peripheral and later coronary vascular resistance and possible competitive flow of the native bypassed coronary artery will influence the results significantly. Our objectives were:(1) measurement of internal mammary artery graft flow with the transit-time flow technique; (2) comparison of two surgical take-down techniques (skeletonizing vs standard pedicle preparation): (3) quantitation of transit-time flow compared to the free pedicle flow and (4) the vasodilatory effect of papaverine on internal mammary artery flow.Method. Consecutive elective cases of coronary artery bypass grafting, performed by two surgeons using routinely either skeletonizing of the internal mammary artery (group A, n = 10) or classtcal pedicle preparation technique (group B, n = 10), were studied prospectively. Anesthesia, cardiopulmonary bypass and operative data were otherwise comparable; likewise, hemodynamlc parameters showed no statistical differences between the two groups. Transit-time flow (CardioMed, MediStim, Norway) was measured at the following time points: beginning (1) and end of take-down (2); after papaverlne soaking: before (3) and on cardiopulmonary bypass (4); free flow into a beaker (5); after anastomosis; on (6) and off cardiopulmonary bypass (7).

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Cardiac rehabilitation is a class 1 recommendation for acute coronary syndrome (ACS) patients according to the American College of Cardiology/American Heart Association. However, only 1 in 5 ACS patients are referred for cardiac rehabilitation nationally, and even fewer at our institution. We sought to improve the number of referrals to cardiac rehabilitation for post-ACS patients admitted to our inpatient cardiology service, and ultimately their participation in the program. We designed a quality improvement initiative that included education of patients and house staff, automated referral order, and participation of cardiac rehabilitation staff members on multidisciplinary rounds. We compared the number of patients who received a referral to cardiac rehabilitation, had the first appointment scheduled before hospital discharge, and attended the program before and after our intervention. Six months after initiation of the project, the proportion of ACS patients referred to cardiac rehabilitation before hospital discharge increased from 10% to 43% (P < 0.001). The mean number of patients with a cardiac rehabilitation appointment scheduled before discharge was 2 before and 5 after the intervention (P < 0.001), and the mean number of patients who attended their scheduled appointment was 1 before and 3 after the intervention (P = 0.001). Run charts demonstrated that the number of referrals and the number of scheduled appointments remained above the median following the intervention. In conclusion, an initiative that included education, automated referrals, and direct one-on-one contact with cardiac rehabilitation staff before discharge increased the number of cardiac rehabilitation referrals, and appointments scheduled and attended in post-ACS patients.