Hospital readmission after distal pancreatectomy is predicted by specific intra- and post-operative factors

Classification of Post-pancreatectomy Readmissions and Opportunities for Targeted Mitigation Strategies

OBJECTIVE

Within a learning health system paradigm, this study sought to evaluate reasons for readmission to identify opportunities for improvement.

BACKGROUND

Post-pancreatectomy readmission rates have remained constant despite improved index hospitalization metrics.

METHODS

We performed a single-institution case-control study of consecutive patients with pancreatectomy (October 2016 to April 2022). Complications were prospectively graded in biweekly faculty and advanced practice provider meetings. We analyzed risk factors during index hospitalization and categorized indications for 90-day readmissions.

RESULTS

A total of 835 patients, median age 65 years and 51% (427/835) males, underwent 64% (534/835) pancreatoduodenectomies, 34% (280/835) distal pancreatectomies, and 3% (21/835) other resections. Twenty-four percent (204/835) of patients were readmitted. The primary indication for readmission was technical in 51% (105/204), infectious in 17% (35/204), and medical/metabolic in 31% (64/204) of patients. Procedures were required in 77% (81/105) and 60% (21/35) of technical and infectious readmissions, respectively, while 66% (42/64) of medical/metabolic readmissions were managed noninvasively. During the index hospitalization, benign pathology [odds ratio (OR): 1.8, P =0.049], biochemical pancreatic leak (OR: 2.3, P =0.001), bile/gastric/chyle leak (OR: 6.4, P =0.001), organ-space infection (OR: 3.4, P =0.007), undrained fluid on imaging (OR: 2.4, P =0.045), and increasing white blood cell count (OR: 1.7, P =0.045) were independently associated with odds of readmission.

CONCLUSIONS

Most readmissions following pancreatectomy were technical in origin. Patients with complications during the index hospitalization, increasing white blood cell count, or undrained fluid before discharge were at the highest risk for readmission. Predischarge risk stratification of readmission risk factors and augmentation of in-clinic resources may be strategies to reduce readmission rates.

Resection Versus Observation for Small (≤2 cm) Pancreatic Neuroendocrine Tumors

BACKGROUND

We hypothesized that those patients with pancreatic neuroendocrine tumors (pNETs) ≤2 cm managed nonoperatively would have comparable disease progression to individuals undergoing an operation.

METHODS

Patients diagnosed with nonfunctional pNETs ≤ 2 cm who were evaluated at a single comprehensive cancer center from 2010 to 2017 were selected from a cancer registry database. Clinicopathologic variables were obtained via retrospective chart review. Primary outcomes were overall and disease specific survival. Variables were compared between the 2 groups using chi-square and independent t-test.

RESULTS

Fifty-two individuals had tumors ≤2 cm, of whom 75% had an operation, while 25% were observed. Each treatment arm had similar distributions of gender, race, and tumor location. The most common operation was distal pancreatectomy (n = 29) followed by pancreatoduodenectomy (n = 6). Nine patients had grade III postoperative complications and 4 had grade IV under Clavien-Dindo classification. The observation group was noted to have a mean disease progression interval of 80.9 months, while those who underwent an operation had a mean disease progression interval of 94.6 months (P = .246).

CONCLUSIONS

Overall disease progression in patients with pNETs ≤ 2 cm without evidence of metastasis at the time of presentation is not different between those who underwent operation compared to those observed.

The Impact of CT-Assessed Liver Steatosis on Postoperative Complications After Pancreaticoduodenectomy for Cancer

INTRODUCTION

Liver steatosis (LS) has been increasingly described in preoperative imaging of patients undergoing pancreaticoduodenectomy (PD). The aim of this study was to assess the impact of preoperative LS on complications after PD and identify possible contributors to LS development in this specific cohort.

METHODS

Pancreatic head adenocarcinoma (PDAC) patients scheduled for PD, with preoperative CT-imaging available were included in the study. LS was defined as mean liver density lower than 45 Hounsfield units. Patients showing preoperative LS were matched for patient age, gender, BMI, ASA score, neoadjuvant treatment, and vascular and multivisceral resections, based on propensity scores in a 1:2 ratio to patients with no LS. The primary outcome was postoperative complication severity at 90 days as measured by the comprehensive complication index (CCI) RESULTS: Overall, 247 patients were included in the study. Forty-three (17%) patients presented with LS at preoperative CT-scan. After matching, the LS group included 37 patients, whereas the non-LS group had 74 patients. LS patients had a higher mean (SD) CCI, 29.7 (24.5) versus 19.5 (22.5), p = 0.035, and a longer length of hospital stay, median [IQR] 12 [8-26] versus 8 [7-13] days, p = 0.006 compared with non-LS patients. On multivariate analysis, variables independently associated with CCI were: LS (16% increase, p = 0.048), male sex (19% increase, p = 0.030), ASA score ≥ 3 (26% increase, p = 0.002), fistula risk score (FRS) (28% increase for each point of FRS, p = 0.001) and vascular resection (20% increase, p = 0.019).

CONCLUSION

Preliminary evidence suggests that preoperative LS assessed by CT-scan influences complication severity in patients undergoing PD for PDAC.

A nationwide cohort study of resection rates and short-term outcomes in open and laparoscopic distal pancreatectomy

BACKGROUND

Distal pancreatectomy (DP) is increasingly done by laparoscopy but data from routine practise are scarce. We describe practise in a national cohort.

METHODS

Data from the Norwegian Patient Register of all patients undergoing DP from 2012 to 2016. National resection rates were analysed. Short-term outcomes include length of stay, reoperation, readmissions and 90-day mortality. Risk is reported as odds ratio (OR) with 95% confidence interval (c.i.).

RESULTS

Of 554 procedures, 327 (59%) were laparoscopic. Median age was 66 years (iqr 55-72) and 52% were women. Resection rates increased during the period for all DP (from 1.76 to 2.39 per 100.000/yr), and significantly for laparoscopic DP (adjusted R-square 0.858; P = 0.015). Elderly patients had more resection (r₂ = 0.11; P = 0.019). Splenectomy (n = 427; 77%) was less likely with laparoscopy (laparoscopy 72% vs open 84%, respectively; OR 0.64, 95% c.i. 0.42-0.97; P = 0.035). Multivisceral resections occurred more often in open DP (5.3% vs 1.2% for laparoscopy, OR 4.51, 1.44-14.2; P = 0.008). Reoperation occurred in 34 (6%), readmission in 109 (20%), and mortality in 8 (1.4%). Hospital stay was shorter for laparoscopic DP.

CONCLUSION

Use of DP increases in the population, particularly in the elderly, with use of laparoscopic access and an association with a reduced hospital stay.