Delayed gastric emptying: the state of the highest level of evidence

The PrEDICT-DGE score as a simple preoperative screening tool identifies patients at increased risk for delayed gastric emptying after pancreaticoduodenectomy

BACKGROUND

Morbidity after Pancreaticoduodenectomy (PD) has remained unchanged over the past decade. Delayed Gastric Emptying (DGE) is a major contributor with significant impact on healthcare-costs, quality of life and, for malignancies, even survival. We sought to develop a scoring system to aid in easy preoperative identification of patients at risk for DGE.

METHODS

The ACS-NSQIP dataset from 2014 to 2018 was queried for patients undergoing PD with Whipple or pylorus preserving reconstruction. 15,154 patients were analyzed using multivariable logistic regression to identify risk factors for DGE, which were incorporated into a prediction model. Subgroup analysis of patients without SSI or fistula (primary DGE) was performed.

RESULTS

We identified 9 factors independently associated with DGE to compile the PrEDICT-DGE score: Procedures (Concurrent adhesiolysis, feeding jejunostomy, vascular reconstruction with vein graft), Elderly (Age>70), Ductal stent (Lack of biliary stent), Invagination (Pancreatic reconstruction technique), COPD, Tobacco use, Disease, systemic (ASA>2), Gender (Male) and Erythrocytes (preoperative RBC-transfusion). PrEDICT-DGE scoring strongly correlated with actual DGE rates (R² = 0.95) and predicted patients at low, intermediate, and high risk. Subgroup analysis of patients with primary DGE, retained all predictive factors, except for age>70 (p = 0.07) and ASA(p = 0.30).

CONCLUSION

PrEDICT-DGE scoring accurately identifies patients at high risk for DGE and can help guide perioperative management.

Updated Principles of Surgical Management of Pancreatic Neuroendocrine Tumours (pNETs): What Every Surgeon Needs to Know

Pancreatic neuroendocrine tumours (pNETs) represent 1 to 2% of all pancreatic neoplasm with an increasing incidence. They have a varied clinical, biological and radiological presentation, depending on whether they are sporadic or genetic in origin, whether they are functional or non-functional, and whether there is a single or multiple lesions. These pNETs are often diagnosed at an advanced stage with locoregional lymph nodes invasion or distant metastases. In most cases, the gold standard curative treatment is surgical resection of the pancreatic tumour, but the postoperative complications and functional consequences are not negligible. Thus, these patients should be managed in specialised high-volume centres with multidisciplinary discussion involving surgeons, oncologists, radiologists and pathologists. Innovative managements such as "watch and wait" strategies, parenchymal sparing surgery and minimally invasive approach are emerging. The correct use of all these therapeutic options requires a good selection of patients but also a constant update of knowledge. The aim of this work is to update the surgical management of pNETs and to highlight key elements in view of the recent literature.

Management of post-operative pancreatic fistulas following Longmire-Traverso pylorus-preserving pancreatoduodenectomy by endoscopic vacuum-assisted closure therapy

Background

Pylorus-preserving pancreatoduodenectomy (PPPD) with pancreatogastrostomy is a standard surgical procedure for pancreatic head tumors, duodenal tumors and distal cholangiocarcinomas. Post-operative pancreatic fistulas (POPF) are a major complication causing relevant morbidity and mortality. Endoscopic vacuum therapy (EVT) has become a widely used method for the treatment of intestinal perforations and leakages. Here we report on a pilot single center series of 8 POPF cases specifically caused by dehiscences of the pancreatogastric anastomosis (PGD), successfully managed by EVT.

Methods

We included all patients with PGD after PPPD, who were treated with EVT between 07/2017 and 08/2020. For EVT a vacuum drainage film (EVT film) or open-pore polyurethane foam sponge (EVT sponge) was fixed to a 14Fr or 16Fr suction catheter and placed endoscopically within the PGD for intracavitary EVT with continuous suction between − 100 and − 150 mmHg. The EVT film/sponge was exchanged twice per week. EVT was discontinued when the PGD was sufficiently healed.

Results

PGD closure was achieved in 7 of 8 patients after a mean EVT time of 16 days (range 8–38) and 3 EVT film/sponge exchanges (range 1–9). One patient died on day 18 after PPPD from acute hemorrhagic shock, unlikely related to EVT, before effectiveness of EVT could be fully achieved. There were no adverse events directly attributable to EVT.

Conclusions

EVT could be an effective and safe addition to our therapeutic armamentarium in the management of POPF with PGD. Unless prospective comparative studies are available, EVT as minimally invasive therapeutic alternative should be considered individually by an interdisciplinary team involving endoscopists, surgeons and radiologists.

Previous upper abdominal surgery is a risk factor for nasogastric tube reinsertion after pancreaticoduodenectomy

BACKGROUND

Pancreaticoduodenectomy without subsequent nasogastric tube management has not been widely adopted due to delayed gastric emptying, the specific and frequent morbidity associated with this surgical procedure. We assessed the feasibility of pancreaticoduodenectomy without use of nasogastric tubes and the risk factors for subsequent nasogastric tube reinsertion.

METHODS

We retrospectively reviewed 465 patients who underwent pancreaticoduodenectomy at a single institution between 2010 and 2019. Primary endpoint was the rate of nasogastric tube reinsertion. Logistic regression analysis was used to determine independent risk factors of nasogastric tube reinsertion and delayed gastric emptying.

RESULTS

The rate of nasogastric tube reinsertion was 10.1% (47/465). The rate of delayed gastric emptying was 9.5% (44/465). Logistic regression analysis identified 4 independent risk factors for nasogastric tube reinsertion: male sex (odds ratio = 4.42; 95% confidence interval 1.50-13.0, P = .007), comorbidity of cardiac ischemia (odds ratio = 3.04; 95% confidence interval 1.05-8.79, P = .041), preoperative cholangitis or cholecystitis (odds ratio = 2.21; 95% confidence interval 1.02-4.76, P = .044), and previous upper abdominal surgery (odds ratio = 8.34; 95% confidence interval 3.07-22.7, P < .001). Independent risk factors for delayed gastric emptying were male sex (odds ratio = 3.20; 95% confidence interval 1.11-9.21, P = .031), comorbidity of cardiac ischemia (odds ratio = 3.81; 95% confidence interval 1.34-10.8, P = .012), concomitant organ resection (odds ratio = 3.99; 95% confidence interval 1.10-14.4, P = .035), and previous upper abdominal surgery (odds ratio = 7.21; 95% confidence interval 2.68-19.4, P < .001).

CONCLUSION

Pancreaticoduodenectomy without use of nasogastric tubes is feasible, but patients with previous upper abdominal surgery require careful postoperative nasogastric tube management.

A comparative study of postoperative outcomes after stapled versus handsewn gastrojejunal anastomosis for pylorus-resecting pancreaticoduodenectomy

Backgrounds/Aims

A stapler is widely used in various surgeries, and there have been recent attempts to use it for performing duodenojejunostomy and gastrojejunostomy during pancreaticoduodenectomy. This study aimed to compare the postoperative results of handsewn gastrojejunostomy (HGJ) and stapled gastrojejunstomy (SGJ) limited to pylorus-resecting pancreaticoduodenectomy (PrPD) performed by a single surgeon.

Methods

This retrospective study was conducted between January 2014 and March 2020, and included 131 patients who underwent PrPD performed by a single surgeon. Of the total subjects, 90 were in the HGJ group and 41 in the SGJ group.

Results

The mean time of surgery was significantly shorter in the stapled group than in the handsewn group (450.4±75.4 min vs. 397.1±66.5 min, p<0.001). However, there were no significant differences between the groups in the rates of postoperative pancreatic fistula, bile leak, chyle leak, intra-abdominal fluid collection, postoperative bleeding, ileus, Clavien-Dindo, rate of reoperation, and 30-day mortality, including delayed gastric emptying (DGE) (n=11 vs. n=6, p=0.92).

Conclusions

Gastrojejunostomy using a stapler in PrPD reduces the reconstruction time without any increase in the rate of complications, including DGE. Therefore, using a stapler for gastrojejunostomy in pancreaticoduodenectomy is feasible and safe.

Early vs Late Readmissions in Pancreaticoduodenectomy Patients: Recognizing Comprehensive Episodic Cost to Help Guide Bundled Payment Plans and Hospital Resource Allocation

INTRODUCTION

Previous studies on readmission cost in pancreaticoduodenectomy patients use estimated cost data and do not delineate etiology or cost differences between early and late readmissions. We sought to identify relationships between postoperative complication type and readmission timing and cost in pancreaticoduodenectomy patients.

METHODS

Hospital cost data from date of discharge to postoperative day 90 were merged with 2008-2018 NSQIP data. Early readmission was within 30 days of surgery, and late readmission was 30 to 90 days from surgery. Regression analyses for readmission controlled for patient comorbidities, complications, and surgeon.

RESULTS

Of 230 patients included, 58 (25%) were readmitted. The mean early and late readmission costs were $18,365 ± $20,262 and $24,965 ± $34,435, respectively. Early readmission was associated with index stay deep vein thrombosis (p < 0.01), delayed gastric emptying (p < 0.01), and grade B pancreatic fistula (p < 0.01). High-cost early readmission had long hospital stays or invasive procedures. Common late readmission diagnoses were grade B pancreatic fistula requiring drainage (n = 5, 14%), failure to thrive (n = 4, 14%), and bowel obstruction requiring operation (n = 3, 11%). High-cost late readmissions were associated with chronic complications requiring reoperation.

CONCLUSION

Early and late readmissions following pancreaticoduodenectomy differ in both etiology and cost. Early readmission and cost are driven by common complications requiring percutaneous intervention while late readmission and cost are driven by chronic complications and reoperation. Late readmissions are frequent and a significant source of resource utilization. Negotiations of bundled care payment plans should account for significant late readmission resource utilization.

A systematic review into patient reported outcomes following pancreaticoduodenectomy for malignancy

BACKGROUND

Pancreaticoduodenectomy is associated with high rates of morbidity. This combined with the psychological burden of cancer, may impact on a patient's quality of life (QoL), which can be measured by using patient-reported outcomes (PRO).

OBJECTIVE

To perform a systematic review to evaluate the measurement of PRO after pancreaticoduodenectomy for cancer.

METHODS

7 different databases were searched using 2 groups of search terms, one relating to pancreaticoduodenectomy, and one to PRO. Three authors screened the search results independently in a systematic manner based on predefined inclusion and exclusion criteria.

RESULTS

27 studies, with 2173 eligible patients were included in the final analysis. Most of the included studies used validated instruments. The European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 questionnaire was most popular and used in 12 studies. The methodology of all included studies was also scrutinised. 12 studies were deemed to have high quality methodology according to pre-defined criteria.

CONCLUSION

The instruments and methods used to measure PRO are variable. The quality of PRO within the available literature has improved over time, as has the number of studies measuring PRO. PRO should be measured with uniformity in future trials so that patients can be provided with more comprehensive information regarding post-operative recovery and QoL during the shared decision-making process preoperatively.

Is delayed gastric emptying associated with pylorus ring preservation in patients undergoing pancreaticoduodenectomy?

BACKGROUND/OBJECTIVE

A high incidence of delayed gastric emptying (DGE) is observed in patients undergoing pylorus-preserving pancreaticoduodenectomy (PpPD). However, DGE incidence after pancreaticoduodenectomy varied because of heterogeneity in surgical techniques, number of surgeons, and DGE definition. This study aimed to evaluate the difference in the incidence of DGE following PpPD and pylorus-resecting pancreaticoduodenectomy (PrPD) and to analyze the risk factor of DGE by a single surgeon to determine whether pylorus preservation was the main factor of DGE.

METHODS

This retrospective study included 115 patients who underwent PpPD (with pylorus ring preservation) and PrPD (without pylorus ring preservation) with laparotomy by a single surgeon at a tertiary center.

RESULTS

The overall incidence of DGE was 23.1%. For comparison, 20 patients (39.2%) in the PpPD group and 5 patients (8.8%) in the PrPD group had DGE, showing a significant difference (p < 0.001). On univariate analysis, hypertension, PpPD, operation time, intraoperative bleeding, packed red blood cell transfusion ≥500 mL, and clinically relevant postoperative pancreatic fistula were associated with DGE. Multivariate analysis identified pylorus preservation and clinically relevant postoperative pancreatic fistula as risk factors for DGE.

CONCLUSION

Compared with PpPD, PrPD significantly reduced the incidence of DGE.

Safety and efficacy of peripheral nutrition fluid (MG-TNA®) in patients undergoing surgery for hepatobiliary and pancreatic disease: Results of a phase 4 trial

Backgrounds/Aims

Essential nutritional support and nutrition therapy for patients with hepatobiliary and pancreatic diseases undergoing surgery is critical, as it may improve clinical outcome. How to implement rational fluid therapy and nutritional support after surgery and effectively protect organ function is crucial for postoperative recovery. The aim this study was to examine the safety and efficacy of peripheral nutrition fluid (MG-TNA®) in patients undergoing surgery for hepatobiliary and pancreatic disease.

Methods

All adult patients undergoing surgery for hepatobiliary and pancreatic disease received peripheral nutrition fluid (MG-TNA®) on the second postoperative day for 3 days. During administration of parenteral nutrition, patients were closely monitored for adverse effects (primary endpoint). Secondary endpoints included nutritional parameters such as serum prealbumin, transferrin, and creatine kinase (CK) levels.

Results

Thirty patients completed the study and were included in the full analysis set. There was no evidence of metabolic complications such as hyperglycemia, azotemia, hypertriglyceridemia, metabolic acidosis and hypokalemia. In addition, there were no adverse effects. There was a significant decrease in serum prealbumin and CK on the third postoperative day (p<0.0001). Although not statistically significant, serum transferrin levels tended to decrease (p=0.0519).

Conclusions

Administration of peripheral nutrition fluid (MG-TNA®) during postoperative period in patients undergoing surgery for hepatobiliary and pancreatic disease proved to be safe with improvement of the nutritional state of the patient.

Risk factors for post-pancreaticoduodenectomy delayed gastric emptying in the absence of pancreatic fistula or intra-abdominal infection

BACKGROUND AND OBJECTIVES

Delayed gastric emptying (DGE) occurs commonly following pancreaticoduodenectomy (PD), but the rate of DGE in the absence of other intra-abdominal complications is poorly understood. The objectives of this study were to define the incidence of DGE and identify risk factors for DGE in patients without pancreatic fistula or other intra-abdominal infections.

METHODS

Retrospective cohort study utilizing the American College of Surgeons National Surgical Quality Improvement Program pancreatectomy variables to identify patients with DGE following PD without evidence of fistula or intra-abdominal infection. Multivariable models were developed to assess preoperative, intraoperative, and technical factors associated with DGE.

RESULTS

The rate of DGE was 11.7% in 10502 cases without pancreatic fistula or intra-abdominal infection. Patients were more likely to develop DGE if age ≥75 (odds ratio [OR], 1.22; P = 0.003), male (OR, 1.29; P < 0.001), underwent pylorus-sparing PD (OR, 1.27; P = 0.004), or had a prolonged operative time (OR, 1.38 if greater than seven vs less than 5 hours; P = 0.005). Factors not associated with DGE included BMI, pathologic indication, and surgical approach.

CONCLUSION

The incidence of DGE after PD is notable even in patients without other abdominal complications. Identification of patients at increased risk for DGE may aid patient counseling as well as decisions regarding surgical technique, enteral feeding access, and enhanced-recovery pathways.

Pylorus preservation pancreatectomy or not

Pancreaticoduodenectomy (PD) is the treatment of choice for various benign and malignant tumors of the pancreatic head or the periampullary region, and the only hope for cure in patients with cancer at this side. While it has been associated with high morbidity and mortality rates in the last century, its centralization in specialized institutions together with refinements in the operative technique and better management of postoperative complications have made PD a standardized, safe procedure. Besides the classic Whipple procedure including distal gastrectomy, two variations of PD with or without pylorus resection, but preservation of the entire stomach in either procedure exist today. Pylorus-preserving PD has gained wide acceptance as standard procedure and is being performed by an increasing number of pancreatic surgeons. After its oncological adequacy was questioned initially, pylorus-preserving PD was shown to be equivalent to the classic Whipple procedure regarding tumor recurrence and long-term survival. Moreover, operation time and blood loss were shown to be reduced in the pylorus-preserving procedure and benefits in nutritional status and quality of life were observed. However, preservation of the pylorus has been suggested to result in an increased incidence of postoperative delayed gastric emptying (DGE). In this context, pylorus-resecting PD has become popular especially in Japan with the aim to prevent DGE by removal of the pylorus but preservation of the stomach. In contrast to positive results from early studies, latest high-quality randomized controlled trial (RCT) data show that pylorus resection does not reduce DGE compared to the pylorus-preserving operation. Non-superiority of pylorus resection was also confirmed in current meta-analysis on this topic. This article summarizes the existing evidence on PD with or without pylorus preservation and derives recommendations for daily practice.

Does Pancreaticogastrostomy Decrease the Occurrence of Delayed Gastric Emptying After Pancreatoduodenectomy?

OBJECTIVES

This study investigates the factors that could influence the development of delayed gastric emptying (DGE) after pancreatoduodenectomy (PD). Delayed gastric emptying is a common complication after PD. The postoperative course is affected by a lengthened hospital stay, a decrease of the patients' quality of life, and a delayed adjuvant treatment.

METHODS

From January 2000 to December 2012, 257 patients underwent PD in the same center. Forty-six variables were retrospectively extracted from medical records. Delayed gastric emptying (grades A, B, and C) was defined by the International Study Group of Pancreatic Surgery classification. Univariate and multivariate analyses were performed to identify factors associated with DGE.

RESULTS

Delayed gastric emptying occurred in 133 patients (51.8%), 89 grade A (66.9%), 27 grade B (20.3%), and 17 grade C (12.8%). Biliary fistula (odds ratio [OR], 8.87; 95% confidence interval [CI], 2.07-37.99, P = 0.003), sepsis (OR, 8.02; 95% CI, 3.22-19.99; P < 0.0001), and intra-abdominal collection (OR, 3.43; 95% CI, 1.06-11.06; P = 0.039) were identified as independent risk factors for DGE, whereas pancreaticogastrostomy (OR, 0.32; 95% CI, 0.16-0.64; P < 0.001) decreased the occurrence of DGE.

CONCLUSIONS

Delayed gastric emptying was linked to the occurrence of postoperative intra-abdominal complications, and reconstruction by pancreaticogastrostomy was beneficial by decreasing its incidence.

Neoadjuvant Therapy for Pancreatic Cancer: Systematic Review of Postoperative Morbidity, Mortality, and Complications

The purpose of this review was to assess whether neoadjuvant chemotherapy and chemoradiotherapy (CRT) result in differential postoperative morbidity and mortality as compared with pancreatic tumor resection surgery alone. Using PRISMA guidelines and the PubMed search engine, we reviewed all prospective phase II trials of neoadjuvant chemotherapy and CRT for pancreatic cancer that examined postoperative morbidities and mortalities. A total of 30 articles were identified, collated, and analyzed. Risks of postoperative complications vary based on trial. With surgery alone, the most common postoperative complications included delayed gastric emptying (DGE) (17% to 24%), pancreatic fistula (10% to 20%), anastomotic leaks (0% to 15%), postoperative bleeding (2% to 13%), and infections/sepsis (17% to 20%). With surgery alone, the mortality was <5%. Neoadjuvant chemotherapy showed comparable fistula rates (3% to 4%), leaks (3% to 11%), infection (3% to 7%), with mortality 0% to 4% in all but 1 study. CRT for resectable/borderline resectable patients also showed comparable complication rates: DGE (6% to 15%), fistulas (2% to 3%), leaks (3% to 7%), bleeding/hemorrhage (2% to 13%), infections/sepsis (3% to 19%), with 9/13 studies showing a mortality of ≤4%. As compared with initially borderline/resectable tumors, CRT for initially unresectable tumors (despite less data) showed higher complication rates: DGE (13% to 33%), fistulas (3% to 25%), infections/sepsis (3% to 16%). However, the confounding factor of the potentially higher tumor burden as an associative agent remains. The only parameters slightly higher than historical surgery-only complication rates were leaks and bleeding/hemorrhage (13% to 20%). Mortality rates in these patients were consistently 0%, with 2 outliers. Hence, neoadjuvant chemotherapy/CRT is safe from a postoperative complication standpoint, without significant increases in complication rates compared with surgery alone. Resectable and borderline resectable patients have fewer complications as compared with unresectable patients, although data for the latter are lacking.

Case-control study of the efficacy of retrogastric Roux-en-Y choledochojejunostomy

The traditional, retrocolic/antegastric Roux-en-Y choledochojejunostomy is technically complicated, and the incidence of postoperative complications remains high. Here we report the outcome of 59 consecutively treated patients (study group, SG) that underwent a new choledochojejunostomy method in which the jejunal loop is passed behind the antrum pyloricum (retrogastric route). A retrospective comparison was made between this group of patients and 187 patients (control group, CG) that underwent conventional Roux-en-Y choledochojejunostomy (antegastric route). Baseline clinicopathological characteristics were similar in both groups, except for the BMI, which was significantly higher in the SG. The time spent on constructing the anastomosis, as well as overall postoperative complications, did not differ between groups. Compared with the CG, the incidence of postoperative delayed gastric emptying was decreased in the SG, and the time elapsed before the patients' first postoperative liquid food consumption was shorter. We ascribe these beneficial effects to the superiority of the modified, retropyloric choledochojejunostomy approach, and propose that this surgical technique is particularly suitable for obese patients, especially those with a short ascending bowel loop.

Systematic review of peri-operative nutritional support for patients undergoing hepatobiliary surgery

BACKGROUND

Malnutrition is prevalent among peri-operative patients undergoing hepatobiliary surgery and is an important prognostic factor. Both hepatobiliary disease and surgical trauma significantly affects body's metabolism and environment. Therefore, it is very important for patients with liver diseases undergoing hepatobiliary surgery to receive essential nutritional support during peri-operative period.

METHODS

We summarized our clinical experience and reviewed of related literature to find the way for implementing the appropriate nutritional strategy.

RESULTS

We found after comprehensively evaluating nutrition status, function of liver and gastrointestinal tract, nutritional strategy would be selected correctly. In severe malnutrition, initiation of enteral nutrition (EN) and/or parenteral nutrition (PN) with essential or special formulae is often recommended. Especially nasojejunal feeding is indicated that early application can improve nutritional status and liver function, reduce complications and prolong survival.

CONCLUSIONS

The reasonable peri-operative nutritional support therapy can improve the effect of surgical treatment and promote the patients' recovery.

Reduction of the Incidence of Delayed Gastric Emptying in Side-to-Side Gastrojejunostomy in Subtotal Stomach-Preserving Pancreaticoduodenectomy

BACKGROUND

One of the most common morbidities of pancreaticoduodenectomies is delayed gastric emptying (DGE). The recent advent of subtotal stomach-preserving pancreaticoduodenectomy (SSPPD) attempts to lessen this troublesome complication; however, the incidence of DGE still remains to be 4.5-20%. This study aims to evaluate whether the incidence of DGE can be reduced by the side-to-side gastric greater curvature-to-jejunal anastomosis in comparison with the gastric stump-to-jejunal end-to-side anastomosis in SSPPD.

METHODS

Between October 2007 and September 2012, a total of 160 consecutive patients who had undergone SSPPD were analyzed retrospectively. In the first period (October 2007-March 2010), gastrojejunostomy was performed with end-to-side anastomosis in 80 patients (SSPPD-ETS group). In the second period (April 2010-September 2012), gastrojejunostomy was performed with the greater curvature side-to-jejunal side anastomosis in 80 patients (SSPPD-STS group). The postoperative data were collected prospectively in a database and reviewed retrospectively.

RESULTS

The incidence of DGE was 21.3% in the SSPPD-ETS group and 2.5% in the SSPPD-STS group (P = 0.0002). According to the classification of the International Study Group of Pancreatic Surgery (ISGPS), the incidence of DGE of grades A, B, and C were 5, 5, and 7 in the SSPPD-ETS group and 0, 2, and 0 in the SSPPD-STS group, respectively. The overall morbidity and postoperative hospital stay of the two groups were not significantly different.

CONCLUSIONS

The greater curvature side-to-side anastomosis of gastrojejunostomy is associated with a reduced incidence of DGE after SSPPD.

Delayed Gastric Emptying (DGE) Following Total Pancreatectomy with Islet Auto Transplantation in Patients with Chronic Pancreatitis

BACKGROUND

The prevalence and factors associated with delayed gastric emptying (DGE) in patients undergoing total pancreatectomy with islet auto transplantation (TP-IAT) for chronic pancreatitis are unknown.

METHODS

A retrospective study of all patients who underwent TP-IAT at Johns Hopkins Hospital (JHH) from August 2011 to November 2014 was performed. The International Study Group of Pancreatic Surgery (ISGPS) clinical grading of DGE was used in this study.

KEY RESULTS

A total of 39 patients with chronic pancreatitis underwent TP-IAT during the study period. The prevalence of DGE following TP-IAT was 35.9%. Twenty-five patients (64.1%) had no DGE, 10 (25.6%) had grade A, 2 (5.1%) had grade B, and 2 patients (5.1%) had grade C DGE. Patients with DGE had 5.7-fold higher odds of having a hospital length of stay (LOS) greater than 14 days (OR 5.70, 95% CI 1.37-23.76, p = 0.02). Patients undergoing laparoscopic TP-IAT had significantly shorter LOS (10.5 vs. 14 days, p = 0.02) and lower need for prokinetics (0.01) during the postoperative course.

CONCLUSIONS AND INFERENCES

DGE is common after TP-IAT and can prolong LOS. Laparoscopic TP-IAT lowers LOS and need for prokinetics postoperatively. Further studies are needed to determine if laparoscopic approaches will improve long-term dysmotility.

Surgical management of pancreatic cancer--pancreaticoduodenectomy

Pancreaticoduodenectomy, the Whipple resection, is a complex operation that is commonly performed for patients with pancreatic ductal adenocarcinoma and other malignant or benign lesions in the head of the pancreas. It can be done with low morbidity and mortality rates, particularly when performed at high-volume hospitals and by high-volume surgeons. While it has been conventionally reserved for patients with early-stage malignant disease, it is being used increasingly for patients with locally extensive tumors who have undergone neoadjuvant therapy and downstaging. This article summarizes the role of pancreaticoduodenectomy for the treatment of patients with pancreatic cancer. It highlights the surgical staging of disease, the technical aspects of the operation and perioperative care, and the oncologic outcome.

Does Braun enteroenterostomy reduce delayed gastric emptying after pancreaticoduodenectomy?

Whether an additional Braun enteroenterostomy is necessary in reducing delayed gastric emptying (DGE) after pancreaticoduodenectomy (PD) has not yet been well investigated. Herein, in this retrospective study, 395 consecutive cases of patients undergoing classic PD from 2009 to 2013 were reviewed. Patients with and without Braun enteroenterostomy were compared in preoperative baseline characteristics, surgical procedure, postoperative diagnosis, and morbidity including DGE. The DGE was defined and classified by the International Study Group of Pancreatic Surgery recommendation. The incidence of DGE was similar in patients with or without Braun enteroenterostomy following PD (37/347, 10.7% vs 8/48, 16.7%, P = 0.220). The patients in the 2 groups were not different in patient characteristics, lesions, surgical procedure, or postoperative complications, although patients without Braun enteroenterostomy more frequently presented postoperative vomiting than those with Braun enteroenterostomy (33.3% vs 15.3%, P = 0.002). Bile leakage, pancreatic fistula, and intraperitoneal abscess were risk factors for postoperative DGE (all P < 0.05). Prokinetic agents and acupuncture were effective in symptom relief of DGE in 24 out of 45 patients and 12 out of 14 patients, respectively.The additional Braun enteroenterostomy following classic PD was not associated with a decreased rate of DGE. Postoperative abdominal complications were strongly correlated with the onset of DGE. Prokinetic agents and acupuncture could be utilized in some patients with DGE.

Prospective randomized clinical trial of a change in gastric emptying and nutritional status after a pylorus-preserving pancreaticoduodenectomy: comparison between an antecolic and a vertical retrocolic duodenojejunostomy

BACKGROUND

Although an antecolic duodenojejunostomy was reported to reduce post-operative delayed gastric emptying (DGE) compared with a retrocolic duodenojejunostomy after a pylorus-preserving pancreaticoduodenectomy (PPPD), the long-term effects of these procedures have rarely been studied. The aim of this prospective, randomized, clinical trial was to investigate the influence of the reconstruction route on post-operative gastric emptying and nutrition.

METHODS

Reconstruction was performed in 116 patients with an antecolic duodenojejunostomy (A group, n = 58) or a vertical retrocolic duodenojejunostomy (VR group, n = 58). Post-operative complications, including DGE, gastric emptying variables assessed by (13) C-acetate breath test and nutrition, were compared between the two groups for 1 year post-operatively.

RESULTS

The incidence of DGE was not significantly different between the procedures (A group: 12.1%; VR group: 20.7%, P = 0.316). At post-operative month 1, gastric emptying was prolonged in the VR versus the A group but not significantly so. At post-operative month 6, gastric emptying was accelerated significantly in the A versus the VR group. Post-operative weight recovery was significantly better in the VR versus the A group at post-operative month 12 (percentage of pre-operative weight, A group: 93.8 ± 1.2%; VR group: 98.5 ± 1.3%, P = 0.015).

CONCLUSIONS

A vertical retrocolic duodenojejunostomy was an acceptable procedure for the lower incidence of DGE and may contribute to better weight gain affected by moderate gastric emptying.

Antecolic versus retrocolic route of the gastroenteric anastomosis after pancreatoduodenectomy: a randomized controlled trial

OBJECTIVE

To investigate the relationship between the route of gastroenteric (GE) reconstruction after pancreatoduodenectomy (PD) and the postoperative incidence of delayed gastric emptying (DGE).

BACKGROUND

DGE is one of the most common complications after PD. Recent studies suggest that an antecolic route of the GE reconstruction leads to a lower incidence of DGE, compared to a retrocolic route. In a nonrandomized comparison within our trial center, we found no difference in DGE after antecolic or retrocolic GE reconstruction.

METHODS

Ten middle- to high-volume centers participated in the patient inclusion. Patients scheduled for PD who gave written informed consent were included and randomized during surgery after resection. Standard operation was a pylorus-preserving PD. Primary endpoint was DGE. Secondary endpoints included other complications and length of hospital stay.

RESULTS

There were 125 patients in the retrocolic group, and 121 patients in the antecolic group. Baseline and treatment characteristics did not differ between the study groups. In the retrocolic group, 45 patients (36%) developed clinically relevant DGE compared with 41 (34%) in the antecolic group (absolute risk difference: 2.1%; 95% confidence interval: -9.8% to 14.0%). There were no differences in need for postoperative (par)enteral nutritional support, other complications, hospital mortality, and median length of hospital stay.

CONCLUSIONS

The route of GE reconstruction after PD does not influence the postoperative incidence of DGE or other complications. The etiology and treatment of DGE, which occurs frequently after both procedures, need further investigation. The GE reconstruction after PD should be routed according to the surgeon's preference.

Effect of early enteral combined with parenteral nutrition in patients undergoing pancreaticoduodenectomy

AIM: To investigate the effect of early enteral nutrition (EEN) combined with parenteral nutritional support in patients undergoing pancreaticoduodenectomy (PD).

METHODS: From January 2006, all patients were given EEN combined with parenteral nutrition (PN) (EEN/PN group, n = 107), while patients prior to this date were given total parenteral nutrition (TPN) (TPN group, n = 67). Venous blood samples were obtained for a nutrition-associated assessment and liver function tests on the day before surgery and 6 d after surgery. The assessment of clinical outcome was based on postoperative complications. Follow-up for infectious and noninfectious complications was carried out for 30 d after hospital discharge. Readmission within 30 d after discharge was also recorded.

RESULTS: Compared with the TPN group, a significant decrease in prealbumin (PAB) (P = 0.023) was seen in the EEN/PN group. Total bilirubin (TB), direct bilirubin (DB) and lactate dehydrogenase (LDH) were significantly decreased on day 6 in the EEN/PN group (P = 0.006, 0.004 and 0.032, respectively). The rate of grade I complications, grade II complications and the length of postoperative hospital stay in the EEN/PN group were significantly decreased (P = 0.036, 0.028 and 0.021, respectively), and no hospital mortality was observed in our study. Compared with the TPN group (58.2%), the rate of infectious complications in the EEN/PN group (39.3%) was significantly decreased (P = 0.042). Eleven cases of delayed gastric emptying were noted in the TPN group, and 6 cases in the EEN/PN group. The rate of delayed gastric emptying and hyperglycemia was significantly reduced in the EEN/PN group (P = 0.031 and P = 0.040, respectively).

CONCLUSION: Early enteral combined with PN can greatly improve liver function, reduce infectious complications and delayed gastric emptying, and shorten postoperative hospital stay in patients undergoing PD.

Comparative analysis of the efficacy and complications of nasojejunal and jejunostomy on patients undergoing pancreaticoduodenectomy

BACKGROUND

The efficacy and feeding-related complications of a nasojejunal feeding tube and jejunostomy after pancreaticoduodenectomy (PD) was investigated with a randomized, controlled clinical trial at the Affiliated Drum Tower Hospital.

METHODS

Sixty-eight patients who underwent PD in the Department of Hepatobiliary Surgery were randomly divided into 2 groups: 34 patients received enteral feeding via a nasojejunal tube (NJT group) and 34 patients received enteral feeding via a jejunostomy tube (JT group). The assessment of clinical outcome was based on postoperative investigation of complications. The second part of the assessment included tube related complications and an index on catheter efficiency.

RESULTS

There were 15 cases with infectious complications in the JT group and 13 cases in the NJT group, and there was no significant difference in the rate of infectious complications between the 2 groups. The rate of intestinal obstruction and delayed gastric emptying was significantly decreased in the NJT group (P < .05). Catheter-related complications were more common in the JT group as compared with the NJT group (35.3% vs 20.6%, P < .05). The time for removal of the feeding tube and nasogastric tube was significantly decreased in the NJT group. The postoperative hospital stay in the NJT group was significantly decreased (P < .05), and there was no hospital mortality in this study.

CONCLUSION

Nasojejunal feeding is safer than jejunostomy, and it is associated with only minor complications. Nasojejunal feeding can significantly decrease the incidence of delayed gastric emptying and shorten the postoperative hospital stay.

[Gastroenteric reconstruction route after pancreaticoduodenectomy: antecolic versus retrocolic]

INTRODUCTION

Delayed gastric emptying (DGE) is a relatively common complication after cephalic pancreaticoduodenectomy (CPD). Its origin is not very clear, and it is believed that its appearance is due to multiple factors (hormones, appearance of other complications, particularly pancreatic fistulas, and the surgical technique). Among the technical aspects associated with DGE, it has been proposed that the route of gastroenteric reconstruction (antecolic or retrocolic) could have an effect on its incidence.

MATERIAL AND METHODS

A systemic review was made of the literature, searching for articles that compared both reconstruction routes after CPD, finding only 11 articles: 4 randomised clinical trials, one prospective study, and 6 retrospective studies. A meta-analysis could not be performed on them, due to the large methodological differences between them.

RESULTS

In the 4 randomised studies, 2 were in favour of the antecolic route, and 2 did not observe any differences between either of them. The antecolic route obtained a much lower DGE rate than the retrocolic one in the only prospective study. In 4 of the retrospective studies the antecolic route obtained a very low rate. The results of both routes were similar in another 2 retrospective studies, with the retrocolic route slightly better in one of them.

CONCLUSIONS

Using the published literature, the gastric reconstruction route associated with less DGE after CPD cannot currently be determined.

Readmission after pancreatic resection is not an appropriate measure of quality

BACKGROUND

Hospital readmission has been proposed as a metric for quality of medical and surgical care. We examined our institutional experience with readmission after pancreatic resection, and assessed factors predictive of readmission.

METHODS

We reviewed 787 pancreatic resections performed at a single institution between 2006 and 2010. Univariate and multivariate logistic regression models were used to assess the relationships between preoperative and postoperative characteristics and readmission. Reasons for hospital readmission were examined in detail.

RESULTS

We found the 30-day readmission rate after pancreatic resection to be 11.6 %. In univariate analysis, young age, pancreaticoduodenectomy versus other operations, open versus laparoscopic technique, fistula formation, the need for reoperation, and any complication during the index hospitalization were predictive of readmission. In multivariate analysis, only young age and postoperative complication were predictive of readmission. Vascular resection, postoperative ICU care, length of stay, and discharge disposition were not associated with readmission. The most common reasons for readmission were leaks, fistulas, abscesses, and wound infections (45.1 %), delayed gastric emptying (12.1 %), venous thrombosis (7.7 %), and GI bleeding (7.7 %).

CONCLUSIONS

We found the vast majority of readmissions after pancreatic resection were to manage complications related to the operation and were not due to poor coordination of care or poor discharge planning. Because evidence-based measures to prevent these surgical complications do not exist, we cannot support the use of readmission rates themselves as a quality indicator after pancreatic surgery.

Comprehensive analysis of variables affecting delayed gastric emptying following pancreaticoduodenectomy

INTRODUCTION

Delayed gastric emptying (DGE) occurs commonly following pancreaticoduodenectomy (PD), and criteria for its clinical diagnosis have recently been standardized by an international consensus group. We evaluated 24 operative and peri-operative variables to assess which were independent risk factors for DGE development. Secondarily, we also examined DGE incidence over time and evaluated the consensus guidelines' ability to diagnose DGE in patients with complicated post-operative courses.

METHODS

A prospective, single-surgeon database of 235 patients undergoing PD at an academic tertiary center was retrospectively reviewed and DGE was assessed per published guidelines.

RESULTS

DGE occurred in 42 patients overall (17.9 %), with incidence falling from 30.0 to 9.1% during the study period. Post-operative abscess, pancreatic fistula formation, pulmonary comorbidity, and increased intraoperative blood loss were found to be independent risk factors (p<0.05) for DGE on multivariate analysis. Changes in operative technique, such as pylorus preservation, did not associate with DGE. In a separate analysis, when patients with confounding post-operative events such as re-intubation or re-laparotomy were excluded, DGE incidence was 11.9 %.

CONCLUSIONS

Perturbation of the operative bed by a secondary complication seems to be the dominant risk for DGE development. The consensus guidelines for DGE diagnosis, while indispensable, may overestimate DGE incidence.

Route of gastroenteric reconstruction in pancreatoduodenectomy and delayed gastric emptying

BACKGROUND

Delayed gastric emptying (DGE) is a frequent complication after pancreatoduodenectomy. Some previous studies suggest that antecolic (compared with retrocolic) gastroenteric reconstruction lowers the incidence of DGE. The present study was performed to investigate the relation between the route of gastroenteric reconstruction and DGE after pancreatoduodenectomy.

METHODS

In a consecutive series of pancreatoduodenectomies, the route of gastroenteric reconstruction was retrospectively determined. Hospital course was prospectively recorded. Patients with antecolic and retrocolic reconstruction were compared. Primary outcome was DGE (ISGPS definition). Secondary outcomes were other complications and hospital stay.

RESULTS

Of 154 included patients, 50% had retrocolic reconstruction. DGE occurred in 58% of retrocolic patients, vs 52% of antecolic patients (NS). 'Primary' DGE (without other intra-abdominal complications) occurred in 36% (retrocolic) and 20% (antecolic) (P= 0.02) of the patients. In multivariable analysis, the route of reconstruction was not associated with primary DGE. Clinically relevant primary DGE (grade B/C) did not differ, nor did the secondary outcomes.

DISCUSSION

The incidence of DGE did not differ between the study groups. 'Primary' DGE was more frequent in the retrocolic group, but in multivariable analysis, no association between the route of reconstruction and primary DGE was found. The preferred route for gastroenteric reconstruction after pancreatoduodenectomy remains to be investigated in a well-powered, randomized, controlled trial.

Route of gastroenteric reconstruction in pancreatoduodenectomy and delayed gastric emptying

BACKGROUND

Delayed gastric emptying (DGE) is a frequent complication after pancreatoduodenectomy. Some previous studies suggest that antecolic (compared with retrocolic) gastroenteric reconstruction lowers the incidence of DGE. The present study was performed to investigate the relation between the route of gastroenteric reconstruction and DGE after pancreatoduodenectomy.

METHODS

In a consecutive series of pancreatoduodenectomies, the route of gastroenteric reconstruction was retrospectively determined. Hospital course was prospectively recorded. Patients with antecolic and retrocolic reconstruction were compared. Primary outcome was DGE (ISGPS definition). Secondary outcomes were other complications and hospital stay.

RESULTS

Of 154 included patients, 50% had retrocolic reconstruction. DGE occurred in 58% of retrocolic patients, vs 52% of antecolic patients (NS). 'Primary' DGE (without other intra-abdominal complications) occurred in 36% (retrocolic) and 20% (antecolic) (P= 0.02) of the patients. In multivariable analysis, the route of reconstruction was not associated with primary DGE. Clinically relevant primary DGE (grade B/C) did not differ, nor did the secondary outcomes.

DISCUSSION

The incidence of DGE did not differ between the study groups. 'Primary' DGE was more frequent in the retrocolic group, but in multivariable analysis, no association between the route of reconstruction and primary DGE was found. The preferred route for gastroenteric reconstruction after pancreatoduodenectomy remains to be investigated in a well-powered, randomized, controlled trial.

Postoperative complications and survival rates for pancreatic cancer patients

BACKGROUND/AIMS

Surgical resection offers the only potential cure for pancreatic tumor. The goal of the present study is to determine complications associated with pancreatic resection and to describe their influence on the survival rate for pancreatic cancer patients.

MATERIALS AND METHODS

Between 1996 and 2009, the findings of 125 pancreatic cancer patients were analyzed in a prospective trial at the First Department of Surgery, University Hospital in Košice, Slovakia.

RESULTS

The overall mortality rate and morbidity rate were 3.2% (4 patients) and 27% (34 patients), respectively. In patients with postoperative complications, the median survival time was 12 months (range, 8-14 months), in patients without complications - 18 months (range, 15-20 months).

CONCLUSION

The presence of postoperative complications after pancreatic resections has negative influence on the survival rate for pancreatic cancer patients. Patients with a small pancreatic duct size (<3 mm) or a soft pancreatic remnant were at high risk of pancreatic leakage and postoperative complications.

Delayed gastric emptying after pylorus-preserving pancreaticoduodenectomy: validation of International Study Group of Pancreatic Surgery classification and analysis of risk factors

OBJECTIVES

This study evaluates the incidence and clinical features and associated risk factors of delayed gastric emptying (DGE) after pancreaticoduodenectomy, employing the International Study Group of Pancreatic Surgery (ISGPS) consensus definition.

METHODS

Demographic, pathological and surgical details for 260 consecutive patients who underwent pylorus-preserving pancreaticoduodenectomy at a single institution were analysed using univariate and multivariate models.

RESULTS

Postoperative complications occurred in 108 (41.5%) and DGE was diagnosed in 36 (13.8%) of 260 patients. Among the 36 DGE patients, 16 had grade A, 18 grade B and two grade C DGE. Resumption of a solid diet (P < 0.001), time to passage of stool (P= 0.002) and hospital discharge (P < 0.001) occurred later in DGE patients. The need for total parenteral nutrition was significantly higher in DGE grade B/C patients (P < 0.001). In the univariate analysis, abdominal collections (P≤ 0.001), pancreatic fistula (PF) grades B and C (P < 0.001), biliary fistula (P= 0.002), pulmonary complications (P < 0.001) and sepsis (P= 0.002) were associated with DGE. Only abdominal collections (P= 0.009), PF grade B/C (P < 0.001) and sepsis (P= 0.024) were associated with clinically relevant DGE. In the multivariate analysis, PF grade B/C (P= 0.004) and biliary fistula (P= 0.039) were independent risk factors for DGE.

CONCLUSIONS

The ISGPS classification and grading systems correlate well with the clinical course of DGE and are feasible for patient management. The principal risk factors for DGE seem to be pancreatic and biliary fistulas.

Pylorus preserving pancreaticoduodenectomy for peri-ampullary carcinoma, is it a good option?

Pancreaticoduodenectomy (PD) is the standard surgical treatment for resectable peri-ampullary tumors. It can be performed with or without pylorus preservation. Many surgeons have a negative opinion of pylorus preserving PD (PPPD) and consider it an inferior operation, especially from an oncological point of view. This article reviews the various aspects of PD in the context of operative factors like blood loss and operation time, complications such as delayed gastric emptying and anastomotic leaks, and the impact on quality of life and survival. We aim to show that PPPD is at least as good as classic PD, if not better in some aspects.

Peri-operative outcomes for pancreatoduodenectomy in India: a multi-centric study

BACKGROUND

There have been an increasing number of reports world-wide relating improved outcomes after pancreatic resections to high volumes thereby supporting the idea of centralization of pancreatic resectional surgery. To date there has been no collective attempt from India at addressing this issue. This cohort study analysed peri-operative outcomes after pancreatoduodenectomy (PD) at seven major Indian centres.

MATERIALS AND METHODS

Between January 2005 and December 2007, retrospective data on PDs, including intra-operative and post-operative factors, were obtained from seven major centres for pancreatic surgery in India.

RESULTS

Between January 2005 and December 2007, a total of 718 PDs were performed in India at the seven centres. The median number of PDs performed per year was 34 (range 9-54). The median number of PDs per surgeon per year was 16 (range 7-38). Ninety-four per cent of surgeries were performed for suspected malignancy in the pancreatic head and periampullary region. The median mortality rate per centre was four (range 2-5%). Wound infections were the commonest complication with a median incidence per centre of 18% (range 9.3-32.2%), and the median post-operative duration of hospital stay was 16 days (range 4-100 days).

CONCLUSIONS

This is the first multi-centric report of peri-operative outcomes of PD from India. The results from these specialist centers are very acceptable, and appear to support the thrust towards centralization.

A reduction in delayed gastric emptying by classic pancreaticoduodenectomy with an antecolic gastrojejunal anastomosis and a retrogastric omental patch

BACKGROUND

Delayed gastric emptying (DGE) continues to be a major cause of morbidity following pancreaticoduodenectomy (PD). A change in the method of reconstruction following PD was instituted in an attempt to reduce the incidence DGE.

METHODS

Patients undergoing PD from January 2002 to December 2008 were reviewed and outcomes determined. Pylorus-preserving pancreaticoduodenectomy (PPPD) with a retrocolic duodenojejunal anastomosis (n = 79) or a classic PD with a retrocolic gastrojejunostomy (n = 36) was performed prior to January 2008. Thereafter, a classic PD with an antecolic gastrojejunal anastomosis and placement of a retrogastric vascular omental patch was undertaken (n = 36).

RESULTS

A statistically significant decrease in DGE was noted in the antecolic group compared to the entire retrocolic group (14% vs 40%; p = 0.004) and compared to patients treated by classic PD with a retrocolic anastomosis alone (14% vs 39%; p = 0.016). On multivariate analysis, the only modifiable factor associated with reduced DGE was the antecolic technique with an omental patch, odds ratio (OR) 0.3 (confidence interval (CI) 0.1-0.8) p = 0.022. Male gender was associated with an increased risk of DGE with OR 2.3 (CI 1.1-4.8) p = 0.026.

CONCLUSION

A classic PD combined with an antecolic anastomosis and retrogastric vascular omental patch results in a significant reduction in DGE.