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Optimizing surgical backup for multiple simultaneous percutaneous transluminal coronary angioplasty procedures
A Avendaño1, W Vaughn, B Reece
1St. Luke's Episcopal Hospital, Texas Heart Institute, Baylor College of Medicine, Houston 77225.
Catheterization and Cardiovascular Diagnosis
|December 1, 1993
Summary
Coordinating surgical backup for percutaneous coronary intervention (PCI) is challenging. This study identified low-risk patient groups for simultaneous PCI, minimizing the need for emergency coronary artery bypass grafting (CABG).
Area of Science:
- Interventional Cardiology
- Cardiovascular Surgery
- Health Services Research
Background:
- Coordinating surgical backup for multiple simultaneous Percutaneous Transluminal Coronary Angioplasty (PTCA) procedures presents logistical challenges at busy interventional centers.
- Assessing the actual risk of requiring emergency Coronary Artery Bypass Grafting (CABG) during simultaneous PTCA procedures is crucial for resource allocation.
- Identifying patient subgroups suitable for concurrent PTCA procedures with a low risk of surgical intervention is essential for efficient patient management.
Purpose of the Study:
- To determine the actual risk associated with two simultaneous PTCA procedures requiring emergency surgery.
- To identify a specific patient cohort amenable to multiple simultaneous PTCA procedures with a minimized risk profile.
- To establish guidelines for scheduling concurrent PTCA cases based on patient risk stratification.
Main Methods:
- Prospective application of the ACC/AHA A/B/C lesion classification system and an empiric risk classification (low/medium/high) to 1,128 PTCA procedures over nine months.
- Categorization of patients into 'minimal risk' (A + B-low) and 'increased risk' (B-med/high + C) groups.
- Calculation of the risk of simultaneous surgical intervention as a function of the number of concurrent PTCA procedures.
Main Results:
- Overall, 1.9% (22/1,128) of patients proceeded directly to emergency CABG.
- The 'minimal risk' group (A + B-low) had a significantly lower incidence of emergency CABG (0.8%) compared to the 'increased risk' group (2.5%).
- Specific criteria for simultaneous procedures were defined: ≤6 minimal risk, or 1 increased risk + ≤3 minimal risk, or ≤2 increased risk cases, all yielding a surgical risk < 0.001.
Conclusions:
- It is feasible to identify a subset of patients with minimal risk for undergoing multiple simultaneous PTCA procedures.
- Performing concurrent PTCA in this identified low-risk group results in a negligible probability of requiring simultaneous surgical intervention.
- This risk stratification enables optimized scheduling and resource management in high-volume interventional cardiology settings.