Failure to rescue following oesophagectomy in Australia: a multi-site retrospective study using American College of Surgeons National Surgical Quality Improvement Program.

BACKGROUND: Failure to rescue (FTR), defined as death after a major complication, is increasingly being used as a surrogate for assessing quality of care following major cancer resection. The aim of this paper is to determine the failure to rescue (FTR) rate after oesophagectomy and explore factors that may contribute to FTR within Australia. METHODS: A retrospective review of the American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) database from 2015 to 2023 at five Australian hospitals was conducted to identify patients who underwent an oesophagectomy. The primary outcome was FTR rate. Perioperative parameters were examined to evaluate predictive factors for FTR. Secondary outcomes include major complications, overall morbidity, mortality, length of stay and 30-day readmissions. RESULTS: A total of 155 patients were included with a median age of 65.2 years, 74.8% being male. The FTR rate was 6.3%. In total, 50.3% of patients (n = 78) developed at least one postoperative complication with the most common complication being pneumonia (20.6%) followed by prolonged intubation (12.9%) and organ space SSI/anastomotic leak (11.0%). Multivariate logistic regression analysis was performed to determine any factors that were predictive for FTR however none reached statistical significance. CONCLUSION: This study is the first to evaluate the FTR rates following oesophagectomy within Australia, with FTR rates and complication profile comparable to international benchmarks. Integration of multi-institutional national databases such as ACS NSQIP into units is essential to monitor and compare patient outcomes following major cancer surgery, especially in low to moderate volume centres.

Systematic Review of Preoperative Prognostic Biomarkers in Perihilar Cholangiocarcinoma.

Perihilar cholangiocarcinoma (pCCA) is an uncommon malignancy with generally poor prognosis. Surgery is the primary curative treatment; however, the perioperative mortality and morbidity rates are high, with a low 5-year survival rate. Use of preoperative prognostic biomarkers to predict survival outcomes after surgery for pCCA are not well-established currently. This systematic review aimed to identify and summarise preoperative biomarkers associated with survival in pCCA, thereby potentially improving treatment decision-making. The Embase, Medline, and Cochrane databases were searched, and a systematic review was performed using the PRISMA guidelines. English-language studies examining the association between serum and/or tissue-derived biomarkers in pCCA and overall and/or disease-free survival were included. Our systematic review identified 64 biomarkers across 48 relevant studies. Raised serum CA19-9, bilirubin, CEA, neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and tumour MMP9, and low serum albumin were most associated with poorer survival; however, the cutoff values used widely varied. Several promising molecular markers with prognostic significance were also identified, including tumour HMGA2, MUC5AC/6, IDH1, PIWIL2, and DNA index. In conclusion, several biomarkers have been identified in serum and tumour specimens that prognosticate overall and disease-free survival after pCCA resection. These, however, require external validation in large cohort studies and/or in preoperatively obtained specimens, especially tissue biopsy, to recommend their use.

Evolution of laparoscopic pancreaticoduodenectomy at Westmead Hospital.

BACKGROUND: Despite its proposed benefits, laparoscopic pancreaticoduodenectomy (LPD) has not been widely adopted due to its technical complexity and steep learning curve. The aim of this study was to report a single surgeon's experience in the stepwise implementation of LPD and evolution of technique over a nine-year period in a moderate-high volume unit. METHODS: Carefully selected patients underwent LPD initially by hybrid approach (laparoscopic resection and open reconstruction), which evolved into a total LPD (laparoscopic resection and reconstruction). Data was prospectively collected to include patient characteristics, intraoperative data, evolution of technique and postoperative outcomes. RESULTS: A total of 25 patients underwent hybrid LPD (HLPD) and 20 patients underwent total LPD (TLPD). There was no 90-day mortality. Three patients developed a postoperative pancreatic fistula (POPF), all of which occurred in patients undergoing HLPD. There was no POPF in 20 consecutive TLPD. There was no evidence of anastomotic strictures in the hepaticojejunostomy in patients undergoing TLPD at long term follow up. CONCLUSION: A gradual and cautious progression from HLPD to TLPD is essential to ensure safe implementation into a unit. LPD should only be considered in carefully selected patients, with outcomes subjected to regular and rigorous independent audit.

Reducing unplanned general surgical readmissions: a review of the Australian and New Zealand National Surgical Quality Improvement Program Database.

BACKGROUND: Unplanned surgical readmissions are an important indicator of quality care and are a key focus of improvement programs. The aims of this study were to evaluate the factors that lead to unplanned hospital readmissions in patients undergoing general surgical procedures and to identify preventable readmissions. METHODS: A retrospective review of the American College of Surgeons National Surgical Quality Improvement Program database from 2016 to 2020 at a tertiary hospital was conducted to identify patients undergoing a general surgical procedure. Various perioperative parameters were studied to identify risk factors and reasons for unplanned readmission. Preventable readmissions were identified. RESULTS: A total of 3069 patients underwent a general surgical procedure. Of these, the overall unplanned readmission rate was 8.8% (n = 247). The most common reason for readmission was associated with surgical site infections (n = 112, 44.3%) followed by pain (n = 50, 20.2%), with over 45% deemed as preventable readmissions. Factors associated with increased risk of readmission included older age, longer index length of stay, prolonged operative time, elective procedures, higher ASA score and contaminated procedures. CONCLUSION: Unplanned readmissions are more likely to occur in patients who develop postoperative complications. Understanding factors associated with readmissions may facilitate targeted quality improvement projects that reduce hospital readmission after surgery.

Robotic-assisted versus laparoscopic rectal surgery in obese and morbidly obese patients: ACS-NSQIP analysis.

Laparoscopic rectal surgery within the confines of a narrow pelvis may be associated with a high rate of open conversion. In the obese and morbidly obese patient, the complexity of laparoscopic surgery increases substantially. Robotic technology is known to reduce the risk of conversion, but it is unclear if it can overcome the technical challenges associated with obesity. The ACS NSQIP database was used to identify obese patients who underwent elective laparoscopic or robotic-assisted rectal resection from 2015 to 2016. Obesity was defined as a body mass index (BMI) greater than or equal to 30 kg/m2. Morbid obesity was defined as a BMI greater than or equal to 35 kg/m2. The primary outcome was unplanned conversions to open. Other outcomes measures assessed included anastomotic leak, operative time, surgical site infections, length of hospital stay, readmissions and mortality. Statistical analyses were performed using SPSS 22.0 (IBM SPSS, USA). 1490 patients had robotic-assisted and 4967 patients had laparoscopic rectal resections between 2015 and 2016. Of those patients, 561 obese patients had robotic-assisted rectal resections and 1824 patients underwent laparoscopic rectal surgery. In the obese cohort, the rate of unplanned conversion to open in the robotic group was 14% compared to 24% in the laparoscopic group (P < 0.0001). Median operative time was significantly longer in the robotic group (248 min vs. 215 min, P < 0.0001). There was no difference in anastomotic leak or systemic sepsis between the laparoscopic and robotic rectal surgery groups. In morbidly obese patients (BMI ≥ 35 kg/m2), the rate of unplanned conversion to open in the robotic group was 19% compared to 26% in the laparoscopic group (P < 0.027). There was no difference in anastomotic leak, systemic sepsis or surgical site infection rates between robotic and laparoscopic rectal resection. Multivariate analysis showed that robotic-assisted surgery was associated with fewer unplanned conversions to open (OR 0.28, P < 0.0001). Robotic-assisted surgery is associated with a decreased risk of conversion to open in obese and morbidly obese patients when compared to conventional laparoscopic surgery. However, robotic surgery was associated with longer operative time and despite improvement in the rate of conversion to open, there was no difference in complications or length of stay. Our findings are limited by the retrospective non-randomised nature of the study, demographic differences between the two groups, and the likely difference in surgeon experience between the two groups. Large randomised controlled studies are needed to further explore the role of robotic rectal surgery in obese and morbidly obese patients.

The Continuing Problem of Expert Evidence in Medical Litigation - A Surgical Perspective with Reference to Daubert.

The tension that exists between the medical and legal professions regarding expert evidence is longstanding. In this article, we will examine some of the issues regarding expert evidence particularly as it relates to matters involving surgeons. Many of the current aspects of the Australian uniform evidence law in relation to expert testimony were based on the Federal Rules of Evidence promulgated in the United States in 1975. We will discuss some of the problems of expert evidence in surgical matters, particularly in New South Wales, and offer some thoughts on how the so-called Daubert trilogy could form a basis on which to re-examine the concept of an "expert". Our analysis offers suggestions for further improvements to the process of adducing expert evidence in claims involving surgical matters.

Bile Duct Injuries as a Result of Cholecystectomy: An Australian Perspective.

Cholecystectomy remains the mainstay treatment for symptomatic gallstones. Despite the evolution of surgical techniques and approaches, bile duct injury represents a significant complication, even in experienced hands. It is associated with significant postoperative morbidity, resource utilisation and costs. Compared to the international data, there is a paucity of data on malpractice cases involving bile duct injuries (BDIs) proceeding to definitive judgment and defence. This article examines the surgical literature and the case law in Australia as it relates to BDIs following cholecystectomy. This article aims to discuss the issues surrounding major bile duct injury litigation and compares the Australian perspective with international experience.

Attitudes towards Enhanced Recovery after Surgery (ERAS) interventions in colorectal surgery: nationwide survey of Australia and New Zealand colorectal surgeons.

BACKGROUND: Whilst Enhanced Recovery after Surgery (ERAS) has been widely accepted in the international colorectal surgery community, there remains significant variations in ERAS programme implementations, compliance rates and best practice recommendations in international guidelines. METHODS: A questionnaire was distributed to colorectal surgeons from Australia and New Zealand after ethics approval. It evaluated specialist attitudes towards the effectiveness of specific ERAS interventions in improving short term outcomes after colorectal surgery. The data were analysed using a rating scale and graded response model in item response theory (IRT) on Stata MP, version 15 (StataCorp LP, College Station, TX). RESULTS: Of 300 colorectal surgeons, 95 (31.7%) participated in the survey. Of eighteen ERAS interventions, this study identified eight strategies as most effective in improving ERAS programmes alongside early oral feeding and mobilisation. These included pre-operative iron infusion for anaemic patients (IRT score = 7.82 [95% CI: 6.01-9.16]), minimally invasive surgery (IRT score = 7.77 [95% CI: 5.96-9.07]), early in-dwelling catheter removal (IRT score = 7.69 [95% CI: 5.83-9.01]), pre-operative smoking cessation (IRT score = 7.68 [95% CI: 5.49-9.18]), pre-operative counselling (IRT score = 7.44 [95% CI: 5.58-8.88]), avoiding drains in colon surgery (IRT score = 7.37 [95% CI: 5.17-8.95]), avoiding nasogastric tubes (IRT score = 7.29 [95% CI: 5.32-8.8]) and early drain removal in rectal surgery (IRT score = 5.64 [95% CI: 3.49-7.66]). CONCLUSIONS: This survey has demonstrated the current attitudes of colorectal surgeons from Australia and New Zealand regarding ERAS interventions. Eight of the interventions assessed in this study including pre-operative iron infusion for anaemic patients, minimally invasive surgery, early in-dwelling catheter removal, pre-operative smoking cessation, pre-operative counselling, avoidance of drains in colon surgery, avoiding nasogastric tubes and early drain removal in rectal surgery should be considered an important part of colorectal ERAS programmes.

The Role of Targeted Versus Standard Antibiotic Prophylaxis in Pancreatoduodenectomy in Reducing Postoperative Infectious Complications: A Systematic Review and Meta-analysis.

INTRODUCTION: Infectious complications are common after pancreatoduodenectomy, which in turn are associated with preoperative biliary drainage. Current guidelines recommend a first-generation cephalosporin as perioperative antibiotic prophylaxis. However, some studies support the use of targeted antibiotics. The aim of this systematic review and meta-analysis is to evaluate the role of prophylactic targeted antibiotics compared to standard antibiotics in reducing postoperative infections after pancreatoduodenectomy. METHODS: A search from MEDLINE, EMBASE, and Cochrane library from 1946 to July 2020 was conducted. Studies were included if they compared targeted antibiotics with standard perioperative antibiotics while including outcome data on surgical site infections (SSI). Targeted therapy was defined as perioperative antibiotics targeting organisms prevalent in bile instrumentation or by culture data obtained from the patient or institution. Outcomes assessed were the rate of SSIs and their microbiology profile. Analyses included demographic data, perioperative antibiotics, postoperative outcomes including microbiology data, and meta-analysis was performed where applicable. RESULTS: Seven studies were included, with a total of 849 patients undergoing pancreatoduodenectomy. Targeted antibiotics were associated with a significantly lower rate of postoperative SSI compared to standard antibiotic therapy [21.1% vs 41.9%; risk ratios (RR) 0.55, 95% confidence interval 0.37-0.81]. Wound/incisional site infections and organ space infections were lower in patients receiving targeted antibiotic prophylaxis (RR 0.33, P = 0.0002 and RR 0.54, P = 0.0004, respectively). Enterococcus species were the most common bacteria reported. CONCLUSION: There was a significant reduction in overall SSI rates when targeted antibiotics was used. Current standard antibiotic prophylaxis is inadequate in covering microbes prevalent in postoperative infections developing after pancreatoduodenectomy.

Day-only elective cholecystectomy: early experience and barriers to implementation in Australia.

BACKGROUND: Day-only laparoscopic cholecystectomy (DOLC) has been shown to be safe and feasible yet has not been widely implemented in Australia. This study explores the introduction of routine DOLC to Westmead Hospital, and highlights the barriers to its implementation. METHODS: Routine day-only cholecystectomy protocol was introduced at Westmead Hospital in 2014. A retrospective review of patients who underwent elective laparoscopic cholecystectomy during a 12-month period in 2014 was compared to a 12-month period in 2018, to examine the changes in practice after implementation of a unit protocol. Data were collected on patient demographics, admission category, outcomes and re-presentations. RESULTS: A total of 282 patients were included in the study, of these 169 were booked as day procedures, with 124 (73%) successfully discharged on the same day. There was a significant increase in the proportion of patients booked as day-only from 2014 to 2018 (48% versus 73%, P < 0.001). Day-only failure rates (unplanned overnight admissions), readmissions and complication rates were comparable between the two periods. The most common reason for unplanned overnight admissions were due to intraoperative findings (n = 28/45). CONCLUSION: Routine DOLC can be adopted in Australian hospitals without compromise to patient safety. Unplanned overnight admission is predominantly due to unexpected surgical pathology and can be reduced by protocols for the use of drains and planned outpatient endoscopic retrograde cholangiopancreatography. Unplanned outpatient review can be minimized by optimizing both intra- and post-operative pain management. Individual surgeon and anaesthetist preferences remain an obstacle to a standardized protocol in the Australian setting.

Management of Boerhaave syndrome in Australasia: a retrospective case series and systematic review of the Australasian literature.

BACKGROUND: Boerhaave syndrome is a rare and life-threatening condition characterized by a spontaneous transmural tear of the oesophagus. There remains wide variation in the condition's management with non-operative management (NOM) and surgery being the two main treatment strategies. The aim was to review the presentation, management and outcomes for patients treated for Boerhaave syndrome at our institution and to compare these data with that previously reported within the Australasian literature. METHODS: A retrospective case series was performed for consecutive patients diagnosed with Boerhaave syndrome at our institution between January 2000 and January 2020. A systematic review of the Australasian literature was also performed. RESULTS: In case series, 15 patients were included (n = 2 NOM, n = 13 operative). The most common operative technique was primary repair with intercostal drainage via thoracotomy. Major complications occurred in 11 (73%) patients. Median Comprehensive Complication Index was 53.4 (interquartile range: 50). There was a significantly lower Comprehensive Complication Index associated with primary repair when compared to oesophageal resection (P = 0.01). There was one death, in the operative management group. Median length of hospital stay was 33 days (interquartile range: 58). In systematic review, 11 articles were included; four case series and seven case reports. From these, 23 patients met inclusion criteria. The majority of patients (83%) were managed operatively, with only four undergoing NOM. Seven patients died, representing an overall mortality rate of 30%. CONCLUSIONS: We provide an updated overview of the management of Boerhaave syndrome within Australasia. Aggressive operative management is associated with reasonable outcomes.

Management of acute extensive portal vein thrombosis: the complexity and morbidity.

A 62-year-old patient was admitted with an acute unprovoked portal vein thrombosis with splenic and mesenteric extension. His progress was complicated by progressive small bowel ischaemia and increasing clot burden despite systemic anticoagulation. This case report describes the use of catheter-directed thrombolysis via a transjugular intrahepatic portosystemic shunt, with the disease and its treatment complicated by a ruptured iatrogenic pseudoaneurysm, abdominal compartment syndrome and small bowel infarction necessitating extensive small bowel resection.

Hybrid laparoscopic pancreaticoduodenectomy: an Australian experience and a proposed process for implementation.

BACKGROUND: Laparoscopic pancreaticoduodenectomy (LPD) is gaining interest with several series reporting favourable outcomes. However, there are significant limitations to the successful implementation of LPD programmes in Australian and New Zealand (ANZ) settings. This study presents a local series of consecutive hybrid LPD (HLPD) and a suggested protocol for implementation of an LPD programme in ANZ settings. METHODS: A retrospective review of consecutive patients undergoing HLPD with a laparoscopic resection and open reconstruction performed by a single surgeon at two centres in Sydney, Australia, between February 2014 and October 2019 was undertaken. Data were collected from a prospectively maintained database and patient records. RESULTS: Eighteen patients underwent HLPD. Median operative time was 370 min, with a median laparoscopic resection time of 253 min. Median length of stay was 11 days. There was no mortality within 90 days. Post-operative complications included two patients requiring a return to operating theatre for post-operative pancreatic fistula, and five patients with delayed gastric emptying. Median number of lymph nodes harvested was 13 (interquartile range 11-15.8). Resection margins were negative in 15 patients (83.3%). CONCLUSION: HLPD is associated with satisfactory perioperative outcomes and may be feasible as a first step towards eventual implementation of LPD in ANZ hospitals.

Multifocal insulinoma secondary to insulinomatosis: persistent hypoglycaemia despite total pancreatectomy.

SUMMARY: Insulinomatosis is a rare cause of hyperinsulinaemic hypoglycaemia. The ideal management approach is not known. A 40-year-old woman with recurrent symptomatic hyperinsulinaemic hypoglycaemia was diagnosed with an insulinoma. A benign 12 mm pancreatic head insulinoma was resected but hypoglycaemia recurred 7 years later. A benign 10 mm pancreatic head insulinoma was then resected but hypoglycaemia recurred within 2 months. Octreotide injections were trialled but exacerbated hypoglycaemia. After a 2-year interval, she underwent total pancreatectomy. A benign 28 mm pancreatic head insulinoma was found alongside insulin-expressing monohormonal endocrine cell clusters (IMECCs) and islet cell hyperplasia, consistent with a diagnosis of insulinomatosis. Hypoglycaemia recurred within 6 weeks. There was no identifiable lesion on MRI pancreas, Ga-68 PET or FDG PET. Diazoxide and everolimus were not tolerated. MEN-1 testing was negative. Insulinomatosis should be suspected in insulinomas with early recurrence or multifocality. De novo lesions can arise throughout the pancreas. Extensive surgery will assist diagnosis but may not provide cure. LEARNING POINTS: Insulinomas are usually benign and managed surgically. Insulinomatosis is characterised by multifocal benign insulinomas with a tendency to recur early. It is rare. Multifocal or recurrent insulinomas should raise suspicion of MEN-1 syndrome, or insulinomatosis. Insulinomatosis is distinguished histologically by insulin-expressing monohormonal endocrine cell clusters (IMECCs) and tumour staining only for insulin, whereas MEN-1 associated insulinomas stain for multiple hormones. The ideal treatment strategy is unknown. Total pancreatectomy may not offer cure.