Due to a lack of usable data, this relationship was not established on the operator level for these outcomes.įor the outcome of length of hospital stay, it was not possible to derive any consistent (monotonic decreasing) relationship between hospital volume and quality of treatment outcome.
On the operator level, this correlation was found only for the outcome of inpatient mortality.įor the outcomes of bleeding, ventilation > 48 hours, and hospital readmission, a correlation between hospital volume and quality of treatment outcome was derived in favour of higher-volume hospitals. All studies had a low informative value of results.įor the outcomes of all-cause mortality and inpatient mortality, a correlation between hospital volume and quality of treatment outcome was derived in favour of higher-volume hospitals. In summary, the results for research question 1 were the following: All 8 studies on research question 1 provided usable data on at least 1 outcome.
Eight retrospective observational studies were included in the investigation for research question 1 (present and assess the relationship between volume and quality of treatment outcome in TAVI).
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