Table 2. Patient and procedure characteristics for open pancreatic resections across periods, January 2008–August 2013.
| <10 Cases/year | 10–20 Cases/year | >20 Cases/year | Total cohort | ||||
|---|---|---|---|---|---|---|---|
|
|
|
|
|||||
| 2008–2010 (n = 133) | 2011–2013 (n = 124) | 2008–2010 (n = 174) | 2011–2013 (n = 153) | 2008–2010 (n = 224) | 2011–2013 (n = 199) | ||
| Patient characteristics (%) | |||||||
| Mean age (years) | 64.4 ± 12.3 | 62.3 ± 12.0 | 62.1 ± 12.8 | 61.1 ± 12.6 | 62.4 ± 13.0 | 63.3 ± 13.6 | 62.6 ± 12.8 |
| Female sex | 51.9 | 46.0 | 55.2 | 47.1 | 51.8 | 57.8 | 52.1 |
| White race | 76.7 | 78.2 | 69.5 | 77.1 | 76.3 | 72.4 | 74.8 |
| ≥3 Comorbiditiesa | 13.5 | 12.1 | 12.1 | 14.4 | 13.4 | 11.6 | 12.8 |
| ASA class 3 or 4 | 76.7 | 75.0 | 70.1 | 79.7b | 65.2 | 69.9 | 71.9 |
| Primary HPB cancer | 54.9 | 61.3 | 52.3 | 51.0 | 53.1 | 48.2 | 52.9 |
| Procedure characteristics (%) | |||||||
| Whipple | 48.1 | 48.4 | 52.3 | 47.1 | 46.4 | 46.2 | 48.1 |
| Pylorus-preserving Whipple | 6.8 | 12.9 | 12.6 | 19.6 | 14.3 | 16.1 | 14.0 |
| Distal or near-total | 42.1 | 34.7 | 31.0 | 31.4 | 35.3 | 31.7 | 34.1 |
| Total pancreatectomy | 1.5 | 1.6 | 0.6 | 0.0 | 2.2 | 4.0 | 1.8 |
| Prolonged operative duration | 17.3 | 38.7b | 17.2 | 28.8b | 25.9 | 21.1 | 24.3 |
| Concomitant procedures (%) | |||||||
| Extended lymphadenectomy | 0.0 | 1.6 | 0.0 | 4.6b | 3.6 | 16.6b | 5.0 |
| Additional organ resection | 23.3 | 19.4 | 11.5 | 15.0 | 12.5 | 14.6 | 15.4 |
| Liver resection | 6.0 | 4.0 | 6.3 | 5.9 | 3.6 | 4.5 | 5.0 |
| Colon resection | 4.5 | 6.5 | 1.7 | 5.2 | 1.8 | 1.5 | 3.2 |
| Splenectomy | 14.3 | 7.3 | 3.5 | 3.9 | 5.8 | 7.5 | 6.8 |
| Vascular reconstruction | 3.0 | 4.8 | 1.2 | 3.9 | 4.0 | 4.5 | 3.6 |
a
Comorbidities from registry data include hypertension, preoperative dialysis requirement, peripheral vascular disease, diabetes, and preoperative ascites
b
p < 0.05 across time periods for univariate t-test, χ2 analysis, or Fisher's exact test, as appropriate