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Preoperative Criteria Predict Operative Time Variability Within Tympanoplasty Procedures
Karissa L LeClair1, Sarah Y Bessen1, Isabelle L Magro2
1Dartmouth Geisel School of Medicine, Hanover.
Summary
Preoperative complexity modifiers and patient factors predict operative time variability in tympanoplasty (CPT codes 69631, 69633). Assigning complexity levels improves surgical scheduling efficiency.
Area of Science:
- Otolaryngology
- Surgical Outcomes Research
Background:
- Tympanoplasty involves procedures with variable operative times.
- Predicting surgical duration is crucial for efficient operating room scheduling.
Purpose of the Study:
- To identify preoperative patient and surgical parameters that predict operative time variability within tympanoplasty Current Procedural Terminology (CPT) codes.
- To assess the utility of preoperative complexity modifiers for stratifying surgical times.
Main Methods:
- Retrospective analysis of 128 tympanoplasty (CPT 69631) and tympanoplasty with ossicular chain reconstruction (CPT 69633) cases.
- Procedures were assigned preoperative complexity modifiers (Level 1, 2, or 3) based on perforation size, approach, and pathology.
- Surgical time variability was analyzed considering factors like complexity, facility, surgeon experience, and patient characteristics (ASA score, BMI).
Main Results:
- Preoperative parameters, including surgical complexity, accounted for up to 69% of surgical time variance.
- Higher complexity levels (Level 3) were associated with significantly longer operative times compared to Level 2.
- Resident involvement and nonoperative preparation time in a main hospital setting also increased total surgical duration.
Conclusions:
- Significant operative time variability exists within tympanoplasty CPT codes.
- Preoperative complexity modifiers, along with patient and surgical factors, accurately predict this variability.
- Implementing complexity modifiers can lead to more efficient surgical scheduling for tympanoplasty procedures.

