Surgery (Western Health) - Research Publications
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ItemState-wide outcomes in elective rectal cancer resection: is there a case for centralization in Victoria?(WILEY, 2019-12)BACKGROUND: The role of service centralization in rectal cancer surgery is controversial. Recent studies suggest centralization to high-volume centres may improve postoperative mortality. We used a state-wide administrative data set to determine the inpatient mortality for patients undergoing elective rectal cancer surgery and to compare individual hospital volumes. METHODS: The Victorian Admitted Episodes Dataset was explored using the Dr Foster Quality Investigator tool. The inpatient mortality rate, 30-day readmission rate and the proportion of patients with increased length of stay were measured for all elective admissions for rectal cancer resections between 2012 and 2016. A peer group of 14 hospitals were studied using funnel plots to determine inter-hospital variation in mortality. Procedure types were compared between the groups. RESULTS: There were 2241 elective resections performed for rectal cancer in Victoria over 4 years. The crude inpatient mortality rate was 1.1%. There were no significant differences in mortality among 14 hospitals within the peer group. The number of elective resections over 4 years ranged from 14 to 136 (median 65) within these institutions. Ultralow anterior resection was the commonest procedure performed. CONCLUSION: Inpatient mortality after elective rectal cancer surgery in Victoria is rare and compares favourably internationally. Based on inpatient mortality alone, there is no compelling evidence to further centralize elective rectal cancer surgery in Victoria. More work is needed to develop data sets with oncological information capable of providing accurate complete state-wide data which will be essential for future service planning, training and innovation.
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ItemTreatment of colonoscopic perforation: outcomes from a major single tertiary institution(WILEY, 2019-05)BACKGROUND: The use of colonoscopy has been increasing in Australia. This case series describes management and outcomes of colonoscopic perforation managed by a single tertiary referral unit. METHODS: An analysis of 13 years (2003-2015) of prospectively collected data on patients who had a colonoscopic perforation and were managed by the colorectal unit at a single tertiary referral centre was performed. Main outcomes were time of diagnosis, modality of management, time to theatre, length of stay, cost of admission and complications. RESULTS: Sixty-two patients had perforations (median age of 69 years). Thirty-eight (61.2%) patients had their colonoscopy performed in another institution. The incidence rate decreased to 0.37 perforations per 1000 colonoscopies within Western Health. Overall, diagnostic colonoscopies accounted for 56% of perforations and perforations were likely to occur in the left colon (P = 0.006). Fifty-one (82%) patients underwent surgery during their admission, with 24% of these being laparoscopic procedures. An earlier diagnosis was associated with significantly less intra-abdominal contamination. Gross peritoneal contamination was more likely to be associated with the decision to form a stoma (37%, n = 19, P = 0.04). Thirty-day mortality was 1.6% (n = 1). CONCLUSIONS: Colonoscopic perforations occur in experienced hands and may have serious implications. We demonstrated a difference in patterns of injury between therapeutic and diagnostic colonoscopies. Those who have an earlier diagnosis are less likely to have severe intra-abdominal contamination requiring a stoma formation.
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ItemComplete state-wide outcomes in elective colon cancer surgery(WILEY, 2018-11)BACKGROUND: Maintaining high standards in colon cancer surgery requires the measurement of quality indicators and the re-allocation of resources to address deficiencies. We used state-wide administrative data to determine the inpatient mortality for patients undergoing elective colon cancer surgery and to compare individual hospital rates. METHODS: The Dr Foster Quality Investigator Tool was used to explore the Victorian Admitted Episodes Dataset for elective admissions for colon cancer surgery between 2012 and 2016. The inpatient mortality rate, 30-day readmission rate and the proportion of patients with increased length of stay were measured. Risk-adjusted rates were used to compare public and private hospitals. A peer group of 14 hospitals were studied using funnel plots to determine inter-hospital variation in mortality. RESULTS: There were 6120 colectomies performed for colon cancer in Victoria over 3 years. The crude inpatient mortality rate was 1.3%. It was significantly higher in public than private hospitals, even after risk adjustment. Variation in crude mortality was demonstrated among 14 selected hospitals. The lowest volume hospitals had significantly higher inpatient mortality rates. Right hemicolectomy was the commonest procedure performed. CONCLUSION: Using an efficient method of complete state-wide data capture, we have demonstrated that the inpatient mortality rate after elective colon cancer surgery in Victoria is low. However, complexity remains around the interpretation of inter-hospital variation, defining outliers, and comparing outcomes between public and private hospitals. Resolving these complexities and defining additional quality indicators remain a priority in the use of administrative data to audit the quality of colon cancer care.