Study characteristics
Our research revealed 11 studies fulfilling these inclusion
criteria9-19, producing a pooled data set of 653
patients of whom 294 underwent MI and 359 underwent MS cardiac tumor
excision (table 3) (figure 1). There was 100% concordance between
reviewers equating to a Cohen’s kappa coefficient of κ = 1. The mean
sample size was 59.3 patients (range, 5–250 patients) and the mean
follow-up duration was 33.3 months (range, 3.7–56 months). All
included studies were retrospective; six studies10-14,
16 included two homogeneous populations and were considered
high-quality (median equal or above 10, Table 2); 601 cardiac masses
were myxomas (92%) with most prevalent location at the level of the
left atrium (table 2).