Purpose: To systematically review the methodologic rigor of the research on volume and
outcomes and to summarize the magnitude and significance of the association between …

Background and methods Volume of surgery and specialization may affect patient outcome.
Articles examining the effects of one or more of three variables (hospital volume of surgery …

Whenever possible, the recommendations listed in this document are evidence based.
Articles reviewed in this guideline revision covered evidence from the past 10 years through …

2011 ACCF/AHA Guideline for Coronary Artery Bypass Graft Surgery: Executive Summary |
Circulation Science Volunteer Warning signs SearchSearch Advanced Search Donate …

Background: Despite more than three decades of research on iatrogenesis, surgical adverse
events have not been subjected to detailed study to identify their characteristics. This …

Background Among patients who have undergone high-risk operations for cancer,
postoperative mortality rates are often lower at hospitals where more of these procedures …

Background: The mortality and complication rates of many surgical procedures are inversely
related to hospital procedure volume. The objective of this study was to determine whether …

ContextEvidence exists that high-volume hospitals (HVHs) have lower mortality rates than
low-volume hospitals (LVHs) for certain conditions. However, few employers, health plans …

Background. Regionalization of high-risk surgical procedures to selected high-volume
centers has been proposed as a way to reduce operative mortality. For patients, however …

A Report of the American College of Cardiology Foundation/American Heart Association
Task Force on Practice Guidelines