Analysis of risk factors for delayed gastric emptying (DGE) after 387 pancreaticoduodenectomies with usage of 70 stapled reconstructions

Delayed gastric emptying after pancreatoduodenectomy: an analysis of risk factors

BACKGROUND

Delayed gastric emptying (DGE) is a frequent complication after pancreatoduodenectomy. Preoperative factors are limited and controversial. This study aims to identify associated factors related to this complication in the Colombian population.

METHODS

A retrospective review of a prospectively collected database was conducted. All patients over 18 years of age who underwent pancreaticoduodenectomy were included. Associations with DGE syndrome were evaluated with logistic regression analysis, Odds ratio, and b-coefficient were provided when appropriate.

RESULTS

205 patients were included. Male patients constituted 54.15% (n = 111). 53 patients (25.85%) were diagnosed with DGE syndrome. Smoking habit (OR 17.58 p 0.00 95% CI 7.62-40.51), hydromorphone use > 0.6 mg/daily (OR 11.04 p 0.03 95% CI 1.26-96.66), bilirubin levels > 6 mg/dL (OR 2.51 p 0.02 95% CI 1.12-5.61), and pancreatic fistula type B (OR 2.72 p 0.02 CI 1.74-10.00).

DISCUSSION

Smoking history, opioid use (hydromorphone > 0.6 mg/Daily), type B pancreatic fistula, and bilirubin levels > 6 mg/dL should be considered as risk factors for DGE.

Hand-sewn gastrojejunal anastomosis reduces delayed gastric emptying after pancreaticoduodenectomy: A single-center retrospective clinical study of 1,077 consecutive patients

BACKGROUND

Hand-sewn anastomosis and stapled anastomosis are the 2 main types of gastrojejunal anastomotic methods in pancreaticoduodenectomy. There is ongoing debate regarding the most effective anastomotic method for reducing delayed gastric emptying after pancreaticoduodenectomy. This study aims to identify factors that influence delayed gastric emptying after pancreaticoduodenectomy and assess the impact of different anastomotic methods on delayed gastric emptying.

METHODS

The study included 1,077 patients who had undergone either hand-sewn anastomosis (n = 734) or stapled anastomosis (n = 343) during pancreaticoduodenectomy between December 2016 and November 2021 at our department. We retrospectively analyzed the clinical data, and a 1:1 propensity score matching was performed to balance confounding variables.

RESULTS

After propensity score matching, 320 patients were included in each group. Compared with the stapled anastomosis group, the hand-sewn anastomosis group had a significantly lower incidence of delayed gastric emptying (28 [8.8%] vs 55 [17.2%], P = .001) and upper gastrointestinal tract bleeding (6 [1.9%] vs 17 [5.3%], P = .02). Additionally, the hand-sewn anastomosis group had a significantly reduced postoperative length of stay and lower hospitalization expenses. However, the hand-sewn anastomosis group had a significantly longer operative time, which was consistent with the analysis before propensity score matching. Logistic regression analysis showed that stapled anastomosis, intra-abdominal infection, and clinically relevant postoperative pancreatic fistula were independent prognostic factors for delayed gastric emptying.

CONCLUSION

Hand-sewn anastomosis was associated with a lower incidence rate of clinically relevant delayed gastric emptying after pancreaticoduodenectomy. Stapled anastomosis, intra-abdominal infection, and clinically relevant postoperative pancreatic fistula could increase the incidence of postoperative clinically relevant delayed gastric emptying. Hand-sewn anastomosis should be considered by surgeons to reduce the occurrence of postoperative delayed gastric emptying and improve patient outcomes.

Treatment Strategy of Pancreas-Sparing Distal Duodenectomy for Distal Duodenal Malignancies with Adjustable Dissection Levels According to Disease Progression (with Video)

BACKGROUND

Pancreas-sparing distal duodenectomy (PSDD) is a favorable option for distal duodenal neoplasms, and its procedure, including the extent of lymphadenectomy, should be modified according to the malignancy of the tumor. However, there are no coherent reports on the details of this procedure or long-term outcomes after each resection.

METHODS

This study included 24 patients who underwent PSDD at our institution between January 2009 and October 2020. Patients were divided into two groups according to the tumor progression: nine with (Lv-II) and fifteen without (Lv-I) mesopancreas dissection. Postoperative outcomes were compared between the two groups.

RESULTS

Two groups had similar operation times, blood loss, hospital stay, and the rate of delayed gastric emptying (DGE): 40% versus 44%. There were no Clavien-Dindo classification ≥ III complications in the Lv-II group. The Lv-II group had a larger number of examined lymph nodes (median: 29), and three (33%) patients had lymph node metastasis. No local recurrence was observed, although two patients in the Lv-II group had liver metastasis. The 5-year overall survival rates of the Lv-I and Lv-II groups were 100% and 78%, respectively. None of the patients had an impaired nutrition status after one year of surgery, and no rehospitalization was observed in either group.

CONCLUSION

Although PSDD with or without mesopancreas dissection entailed a high risk of DGE, this procedure showed favorable long-term outcomes and may be an alternative to pancreatoduodenectomy in patients with distal duodenal neoplasms.

Impact of Early Enteral Nutrition on Delayed Gastric Emptying and Nutritional Status After Pancreaticoduodenectomy

BACKGROUND

Although early enteral nutrition (EEN) is an accepted practice after pancreaticoduodenectomy (PD), the impact of EEN on postoperative complications or nutritional status remains unclear. We aimed to investigate the impact of EEN on delayed gastric emptying (DGE) and nutritional status after PD.

METHODS

A total of 143 patients underwent PD between January 2012 and September 2020. We excluded patients who underwent a two-stage pancreatojejunostomy, in whom the enteral tube was accidentally pulled out, or with insufficient information in their medical records. The incidence of postoperative complications was compared between patients who received EEN (EEN group, n = 21) and those who did not (control group, n = 21) after propensity score matching. Univariate and multivariate analyses were performed to identify the risk factors affecting the incidence of these complications. Nutritional status was assessed at postoperative months 1, 3, and 6.

RESULTS

The incidence of grade B/C DGE in the EEN group was significantly lower than that in the control group (4.8% vs. 28.6%, p = 0.03). There was no significant difference in overall morbidity, incidence of any other postoperative complications, or all-grade DGE. In multivariate analysis, EEN was associated with a reduction in the incidence of grade B/C DGE (p < 0.01). In the analysis of nutritional status, EEN was significantly associated with better nutritional status at postoperative month 1.

CONCLUSION

EEN can lead to a lower clinically relevant DGE rate and better nutritional status in the early postoperative period in patients undergoing PD.

Prospective multicentre randomised controlled trial of the effect of raun Enteroenterostomy in the Reconstruction after Pancreaticoduodenectomy on delayed gastric emptying (DGE): protocol for the BERP study

INTRODUCTION

Despite advances in achieving low mortality rates with pancreaticoduodenectomy (PD), morbidity remains high. A key contributor to this morbidity is delayed gastric emptying (DGE) occurring with an incidence of up to 30%. The utility of a Braun enteroenterostomy (BE) appears promising to reducing the incidence of DGE, but current research is not definitive.

METHODS AND ANALYSIS

This project will be designed as a prospective multicentre randomised controlled blinded study to assess how BE effects the rate of DGE after PD in the setting of malignancy, within Australia-with blinding of patients, outcome assessors and data analysts. Patients will be randomly assigned to PD with Billroth II reconstruction with BE versus PD with Billroth II reconstruction without BE. The primary outcome is the incidence of DGE as defined by the International Study Group of Pancreatic Surgery. Secondary outcomes will include length of hospital stay, postoperative pancreatic fistula incidence, development of major complications (Clavien-Dindo≥3 a), quality of life and 90-day mortality.The study will be powered at 80% to detect a reduction in DGE rate from 30% to 15%, requiring a total of 264 study participants. An interim analysis will be performed once a total of 104 study participants have been recruited at which point the study will be able to detect reduction in DGE from 30% to 10% with 80% power. Statistical analysis will be done with intention-to-treat principles. The proportion of patients suffering DGE will be compared between treatment arms using a χ² test, with p values used to represent statistical significance.

ETHICS AND DISSEMINATION

The study has been ethically approved by the Hunter New England Human Research Ethics Committee (2021/ETH11939), with results disseminated through presentation and publication.

TRIAL REGISTRATION NUMBER

CTRN12622000048785.

Arterial reinforcement following pancreatoduodenectomy: The solution to prevent delayed hemorrhage caused by postoperative pancreatic fistula

PURPOSE

Delayed hemorrhage (DH) is a rare and yet well-known fatal complication associated with postoperative pancreatic fistula (POPF) in pancreatoduodenectomy (PD). The study aimed to investigate whether arterial reinforcement (AR) using polyglycolic acid sheets (PAS) followed by fibrin sealant (FS) to the hepatic artery could prevent DH in the setting of POPF after PD.

METHODS

A total of 345 patients underwent PD for periampullary tumors from March 2011 to March 2022. From March 2011 to March 2018, 225 patients underwent PD, and AR was not performed (non-AR group). From April 2018 to March 2022, 120 patients underwent PD, and AR was performed (AR group). AR was achieved by wrapping the proper hepatic artery all the way down to the celiac artery with PAS followed by coating with FS. Demographic profile and various outcomes including DH of these two groups were compared and analyzed retrospectively.

RESULTS

In non-AR group, 48 (21.3%) and 12 (5.3%) patients had grade B and C POPF, respectively. In AR group, 26 (21.7%) and four (3.3%) patients had grade B and C POPF, respectively. The incidence of POPF was not statistically significant (p = .702) between the groups. Among the patients with grade B or C POPF, DH occurred in 14 (23.3%) patients in non-AR group and only one patient in AR group (p = .016). Of the 15 patients with DH, four (26.7%) patients died.

CONCLUSION

AR using PAS and FS is effective in preventing DH in the setting of POPF.

Body surface gastric mapping to determine gastric motility patterns associated with delayed gastric emptying after pancreaticoduodenectomy. Gastric Electric Mapping after Pancreatoduodenectomy study protocol

INTRODUCTION

Delayed gastric emptying (DGE) is frequent after pancreaticoduodenectomy (PD). Although often associated with postoperative pancreatic fistula, the precise pathogenesis in patients with no underlying complications remains unclear. There is evidence to suggest that, after surgery, aberrant electrical pathways are formed in the stomach which could contribute to the development of DGE.Gastric Alimetry is a novel technology which measures the electrical activity of the stomach non-invasively using an array of electrodes applied to the skin of the abdomen. This technique, termed body surface gastric mapping (BSGM), has been validated in normal controls and in patients with functional dyspepsia syndromes. This study will investigate the efficacy and feasibility of using BSGM to assess gastric motility in patients who undergo PD.

METHODS AND ANALYSIS

This prospective cohort study will be conducted at a single large volume hepatobiliary unit in the UK. 50 patients who are planned to undergo PD will be included. BSGM measurement will be performed at four timepoints viz: preoperatively, day 4 postoperatively, at discharge and 6 months postoperatively. Key parameters of BSGM measurement, including wave amplitude, frequency and directional vector, will be measured at each timepoint and compared between different patient subgroups. Symptoms will be self-reported by patients during the recording using an iPad application designed for this purpose. Quality of life and patient experience will be assessed using standardised questionnaires at the end of the follow-up period.

ETHICS AND DISSEMINATION

The protocol has been approved by the research ethics committees of Newcastle University and the Health Research Authority (HRA) of the UK (ethical approval IRAS ID 305302). Findings will be published in peer-reviewed journals and presented at national and international conferences.

TRIAL REGISTRATION NUMBER

This study will automatically be registered with the ISRCTN registry by the HRA as part of the ethics approval process.

The impact of gastrojejunostomy orientation on delayed gastric emptying after pancreaticoduodenectomy: a single center comparative analysis

BACKGROUND

Delayed gastric emptying (DGE) represents the most frequent complication after pancreaticoduodenectomy (PD). Aim of this study was to evaluate the impact of gastrojejunostomy (GJ)orientation on DGE incidence after PD.

METHODS

One-hundred and twenty-one consecutive PDs were included in the analysis and divided in the horizontal (H-GJ group) and vertical GJ anastomosis groups (V-GJ group). Postoperative data and the value of the flow angle between the efferent jejunal limb and the stomach of the GJ anastomosis at the upper gastrointestinal series were registered.

RESULTS

Seventy-five patients (62%)underwent H-GJ, while 46 patients (38%)underwent V-GJ. The incidence of DGE was significantly lower in the V-GJ group as compared to the H-GJ group (23.9%vs45.3%; p = 0.02). V-GJ was also associated to a less severe DGE manifestation (p = 0.006). The flow angle was significantly lower in case of V-GJ as compared to H-GJ (24.5°vs37°; p = 0.002). At the multivariate analysis, ASA score≥3 (p = 0.02), H-GJ (p = 0.03), flow angle>30°(p = 0.004) and Clavien-Dindo≥3 (p = 0.03) were recognized as independent prognostic factors for DGE. These same factors were independent prognostic features also for a more severe DGE manifestation.

CONCLUSION

VGJ and the more acute flow angle appear to be associated to a lower incidence rate and severity of DGE. This modified technique should be considered by surgeons in order to reduce postoperative DGE occurrence.

Clinical Efficacy of the Preservation of the Hepatic Branch of the Vagus Nerve on Delayed Gastric Emptying After Laparoscopic Pancreaticoduodenectomy

BACKGROUND

Delayed gastric emptying (DGE) is a common complication following laparoscopic pancreaticoduodenectomy (LPD), although it remains incompletely understood, and only few studies have investigated the clinical benefits of hepatic branch of the vagus nerve (HBVN) preservation on DGE after LPD until now. We intended to evaluate the effect of preservation of the HBVN during LPD on the incidence of DGE.

METHODS

A total of 274 consecutive LPDs performed at a single center between July 2014 and December 2019 with available videos were retrospectively reviewed. DGE was defined according to the International Study Group of Pancreatic Surgery (ISGPS) criteria, and HBVN condition during the LPD procedure was evaluated through a video review. Risk factors associated with DGE were assessed by performing univariate and multivariate logistic regression analyses. Postoperative outcomes between the HBVN-preserved and HBVN-injury groups were compared before and after propensity score matching (PSM).

RESULTS

One hundred fifty-six (56.93%) patients underwent LPD with HBVN-preserved and 118 (43.07%) with HBVN injury. DGE occurred in 33.2% of patients (n = 91) with grades B and C occurring at 13.9% (n = 38) and 7.7% (n = 21), respectively. Longer operative time, more EIBL, HBVN injury, POPF (grades B and C), postoperative hemorrhage, intra-abdominal infection, and Clavien-Dindo ≥III were identified as risk factors for DGE in the univariate analysis. Then, in the multivariate analysis, HBVN injury and intra-abdominal infection were found to be independent risk factors affecting the incidence of DGE (any grade) or clinically relevant DGE (grades B and C). Furthermore, the prevalence of DGE was significantly higher in the HBVN-injury group than in the HBVN-preserved group before and after PSM analysis (46.61% vs. 23.08%, P<0.001; 42.59% vs. 23.15%, P=0.013).

CONCLUSIONS

HBVN preservation during LPD might be associated with a reduced incidence of DGE as a framework for prospective quality improvement.

Gastrocolic ligament lymph-node dissection may increase the incidence of delayed gastric emptying after colon cancer surgery with D3 lymphadenectomy

PURPOSE

Delayed gastric emptying (DGE) is associated with prolonged hospital stay and higher healthcare costs. This study aimed to investigate the risk factors for DGE after D3 radical resection for colon cancer and to build a nomogram for this complication.

METHODS

We analyzed, retrospectively, 1160 consecutive patients who underwent surgery with D3 lymphadenectomy for colon cancer between January, 2012 and June, 2018. A multivariate logistic regression analysis was used to identify the risk factors for DGE and to build a DGE nomogram model.

RESULTS

There were ten, six and four patients with DGE classified as grades A, B and C, respectively, representing a DGE rate of 1.7%. Multivariate analysis revealed that age (P = 0.001), dissection of the gastrocolic ligament lymph nodes (GCLNs) (P = 0.001), surgical duration (P = 0.017) and preoperative hemoglobin level (P = 0.016) were independent risk factors, and were included to build a predictive model for DGE. The therapeutic index of GCLN dissection was approximately half that of D3 lymphadenectomy (2.9 vs. 5.6).

CONCLUSIONS

DGE is more likely to develop in patients aged > 75 years, those with a preoperative hemoglobin < 90 g/L, those with a surgical duration > 210 min, and those who undergo GCLN dissection. The nomogram may facilitate the stratification of patients at risk for DGE following D3 lymphadenectomy for colon cancer. Assessing long-term outcomes will help to evaluate the survival benefit of GCLN dissection in the future, to avoid unnecessary dissection and reduce the incidence of DGE.

Gastrostomy as a Preemptive Measure after Pancreatoduodenectomy against Delayed Gastric Emptying: A Small Case Series and a Review of the Literature

Delayed gastric emptying (DGE) is a common (20–30%) postoperative complication following pancreatoduodenectomy (PD) (Parmar et al., 2013). Various causes and preemptive measures have been suggested to decrease the occurrence of DGE. We added a simple step in the procedure of 26 consecutive pancreatic head resections, which seems to alleviate DGE and has never been highlighted before.

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.

Comparison of surgical outcomes between isolated pancreaticojejunostomy, isolated gastrojejunostomy, and conventional pancreaticojejunostomy after pancreaticoduodenectomy: a systematic review and meta-analysis

BACKGROUND

We aimed to compare the safety and effectiveness of the following procedures after pancreaticoduodenectomy: isolated pancreaticojejunostomy, isolated gastrojejunostomy, and conventional pancreaticojejunostomy.

METHODS

We performed a systematic search of the following databases: PubMed, Embase, Web of Science, the Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov until 1 January 2020. Pooled odds ratios (OR) or weighted mean differences (WMD) with 95% confidence intervals (CIs) were calculated using STATA 12.0 statistical software.

RESULTS

Thirteen studies involving 1942 patients were included in this study. Pooled analysis showed that reoperation rates following isolated pancreaticojejunostomy were lower reoperation than with conventional pancreaticojejunostomy (OR = 0.36, 95% CI: 0.15-0.86, p = 0.02, respectively), and that isolated pancreaticojejunostomy required longer operation time vs conventional pancreaticojejunostomy (WMD = 43.61, 95% CI: 21.64-65.58, P = 0.00). Regarding postoperative pancreatic fistula, clinically-relevant postoperative pancreatic fistula, delayed gastric emptying, clinically-relevant delayed gastric emptying, bile leakage, hemorrhage, reoperation, length of postoperative hospital stay, major complications, overall complications, and mortality, we found no significant differences for either isolated pancreaticojejunostomy versus conventional pancreaticojejunostomy or isolated gastrojejunostomy versus conventional pancreaticojejunostomy.

CONCLUSIONS

This study showed that isolated pancreaticojejunostomy was associated with a lower reoperation rate, but required longer operation time vs conventional pancreaticojejunostomy. Considering the limitations, high-quality randomized controlled trials are required.

Delayed gastric emptying after pancreatoduodenectomy: comparison between invaginated pancreatogastrostomy and pancreatojejunostomy

Background

The association between delayed gastric emptying (DGE) after pancreatoduodenectomy (PD) and pancreatic reconstruction technique remain unclear. The aim of this study is to investigate whether the occurrence of DGE differs between pancreaticojejunostomy (PJ) and pancreaticogastrostomy (PG).

Methods

A total of 83 patients who underwent subtotal stomach-preserving pancreatoduodenectomy was retrospectively analyzed, and the factors associated with clinically relevant DGE were explored. These patients were divided into a PG group and a PJ group according to the pancreatic reconstruction. DGE occurrence and its association with intra-abdominal complications was compared between the two types of pancreatic reconstruction.

Results

The overall incidence of DGE was 27.7%. Intra-abdominal complications including pancreatic fistula were strongly associated with DGE. As to the pancreatic reconstruction, DGE developed more frequently in the PG than in the PJ. In addition, DGE with intra-abdominal complications tended to be more frequent in PG, despite the fact that intra-abdominal complications occurred at a similar frequency in both groups.

Conclusions

Intra-abdominal complications were strongly associated with DGE. As to the pancreatic reconstruction, DGE developed more frequently in the PG than in the PJ. We speculate that intra-abdominal complications affected patients with PG more and resulted in frequent occurrence of DGE.

The findings of the contrast-enhanced CT and risk factors for hepatic infarction after pancreatoduodenectomy

PURPOSE

Hepatic infarction is a relatively rare life-threatening complication after pancreatoduodenectomy (PD). Computed tomography (CT) findings and risk factors for hepatic infarctions after PD were investigated.

METHODS

One hundred-fifty three patients who underwent contrast-enhanced CT (CECT) after PD between January 2011 and August 2016 were retrospectively analyzed. Hepatic infarction was defined as the non-contrast enhanced area expanding to the liver surface without mass effect on CECT. The relationships between infarctions and preoperative laboratory data or surgical procedures using uni- and multivariate analyses were examined.

RESULTS

Twenty-nine patients showed 47 hepatic infarctions on CT. Infarctions most commonly appeared in segment 7 (S7) (17 lesions, 36.2%). Lesions were wedge-shaped in 12 patients and spread over multiple hepatic segments in 11 patients. Univariate analysis identified celiac artery (CA) or common hepatic artery (CHA) resection (p = 0.0029) and portal vein (PV) resection (p = 0.013) as risk factors for infarctions. CA or CHA resection (p = 0.038) remained as a significant factor after multivariate logistic analysis.

CONCLUSIONS

Hepatic infarctions after PD were most frequently seen in S7 and PV penetrating sign was characteristic CT findings. CA or CHA resection or PV resection were revealed as risk factors for hepatic infarctions.

Delayed gastric emptying following pancreatoduodenectomy: a Roux-en-Y gastrojejunostomy vs Billroth II gastrojejunostomy randomized study

INTRODUCTION

delayed gastric emptying (DGE) is the most common complication after pancreaticoduodenectomy (PD) and it occurs in 50% of cases.

OBJECTIVES

the endpoint was to determine if there were any differences in the incidence of DGE between Roux-en-Y gastrojejunostomy (ReY) and Billroth II gastrojejunostomy (BII) in PD with pancreaticogastrostomy (PG).

METHODS

this was a case-control prospective randomized study of all PD cases between 2013 and 2016. Sixty-four patients were included, 32 in each group. An intention-to-treat statistical analysis was performed.

RESULTS

no significant differences were found with regard to morbidity and mortality or hospital stay. DGE was present in 25% of the patients in the BII group in comparison to 15.6% in the ReY group, which was not statistically significant (p = 0.35). There was a higher percentage of patients with primary DGE in the BII group, 12.5% versus 6.2%, but this was not statistically significant (p = 0.53). No difference in DGE severity was observed. Male gender (OR 8.38 [1.1; 129]), abdominal complications (OR 15 [1.7; 396.9]), pre-operative malnutrition (OR 99.7 [3.3, 11,126]) and hemorrhage (OR 9.4 [1.37, 107.94]) were the main risk factors for DGE according to the multivariate analysis.

CONCLUSIONS

there were no significant differences in the incidence or severity of DGE between BII or ReY after PD with PG.

Comparing the surgical outcomes of stapled anastomosis versus hand-sewn anastomosis of duodenojejunostomy in pylorus-preserving pancreaticoduodenectomy

Backgrounds/Aims

This study is to evaluate the perioperative outcomes of the duodenojejunostomy (DJ) procedure in pylorus preserving pancreaticoduodenectomy (PPPD).

Methods

In this study, as noted between 2010 and 2018, there were 77 PPPDs which were performed at our hospital by one surgeon. We began the circular stapled method from 2014, and continue with this procedure for the aforementioned surgeries including and up to today. The clinical data for the study were collected retrospectively to compare clinical outcomes of the two methods, the circular stapled anastomosis and the hand - sewn anastomosis.

Results

There were 34 patients in a circular stapled group, and 43 in a hand-sewn group as identified for this study. The delayed gastric emptying (DGE) occurred in 6 (17.64%) patients in the circular stapled group, and 10 (23.3%) in the hand-sewn group (p=0.547). It is noted that there was a serum albumin level measured on the 14th day after the operation, which was significantly high in the circular stapled group (3.41±0.47 (g/dl) vs 2.92±0.39 (g/dl), p<0.001). There were no significant differences in terms of the incidence of postoperative complications (58.8% vs 58.1%, p=0.952) and mortality rates (5.9% vs 0, p=0.192) among the patient participants in this study.

Conclusions

We conclude that using a circular stapler for the DJ procedure in PPPDs do not increase the development of a DGE, and is also helpful for the benefit of the patient's nutritional status going forward during recovery from the operation.

Mortality and postoperative complications after different types of surgical reconstruction following pancreaticoduodenectomy-a systematic review with meta-analysis

BACKGROUND

Pancreaticoduodenectomy/PD is a technically demanding pancreatic resection. Options of surgical reconstruction include (1) the child reconstruction defined as pancreatojejunostomy/PJ followed by hepaticojejunostomy/HJ and the gastrojejunostomy/GJ "the standard/s-Child," (2) the s-child reconstruction with an additional Braun enteroenterostomy "BE-Child," or (3) Isolated-Roux-En-Y-pancreaticojejunostomy "Iso-Roux-En-Y," in which the pancreas anastomosis is reconstructed in a separate loop after the GJ. Yet, the impact of these reconstruction methods on patients' outcome has not been sufficiently compared in a systematic manner.

METHODS

A systematic review and meta-analysis were conducted according to the Preferred-Reporting-Items-for-Systematic-review-and-Meta-Analysis/PRISMA-guidelines by screening Pubmed/Medline, Scopus, Cochrane Library and Web-of-Science. Articles meeting predefined criteria were extracted and meta-analysis was performed.

RESULTS

Nineteen studies were identified comparing BE-Child or Isolated-Roux-En-Y vs. s-Child. Compared to s-Child neither BE-Child (p = 0.43) nor Iso-Roux-En-Y (p = 0.94) displayed an impact on postoperative mortality, whereas BE-Child showed less postoperative complications (p = 0.02). BE-Child (p = 0.15) and Iso-Roux-En-Y (p = 0.61) did not affect postoperative pancreatic fistula/POPF in general, but BE-Child was associated with a decrease of clinically relevant POPF (p = 0.005), clinically relevant delayed gastric emptying/DGE B/C (p = 0.004), bile leaks (p = 0.01), and hospital stay (p = 0.06). BE-Child entailed also an increased operation time (p = 0.0002) with no impact on DGE A/B/C, hemorrhage, surgical site infections and pulmonary complications.

CONCLUSION

BE-Child is associated with a decreased risk for postoperative complications, particularly a decreased risk for clinically relevant DGE, POPF, and bile leaks, whereas Iso-Roux-En-Y does not seem to affect the clinical course after PD. Therefore, BE seems to be a valuable surgical method to improve patients' outcome after PD.

Randomized trial of two types of gastrojejunostomy after pancreatoduodenectomy and risk of delayed gastric emptying (PAUDA trial)

BACKGROUND

Delayed gastric emptying (DGE) is the most important cause of an extended hospital stay after pancreatoduodenectomy. Reports suggest that a Roux-en-Y gastroenteric anastomosis may have lower incidence of DGE than a Billroth II reconstruction. The primary aim of this RCT was to compare Billroth II (single loop) and Roux-en-Y (double loop) after pancreatoduodenectomy to determine whether Roux-en-Y reconstruction is associated with a lower incidence of DGE. Secondary endpoints were postoperative complications.

METHODS

This was a randomized unblinded single-centre trial without masked evaluation of the main outcome. Patients undergoing pancreatoduodenectomy between 2013 and 2015 were randomized to undergo one of two types of gastroenteric anastomosis for reconstruction.

RESULTS

A total of 80 patients were randomized, 40 in each group. The incidence of DGE was the same in patients undergoing Billroth II or Roux-en-Y gastroenteric anastomosis (both 18 of 40 patients; P = 1·000). The grade of DGE was also similar in the Billroth II and Roux-en-Y groups (grade A, both 10 of 40; grade B, 5 of 40 versus 6 of 40; grade C, 3 of 40 versus 2 of 40; P = 0·962). The mortality rate was 3 per cent, with no significant difference between the two groups. There were no differences in the overall rate of postoperative morbidity, relaparotomy rate or duration of hospital stay.

CONCLUSION

The incidence and severity of DGE does not differ between single- or double-loop gastroenteric anastomosis performed after pancreatoduodenectomy. Registration number: NCT00915863 (http://www.clinicaltrials.gov).

Stapled anastomosis versus hand-sewn anastomosis of gastro/duodenojejunostomy in pancreaticoduodenectomy: A systematic review and meta-analysis

BACKGROUND

Controversy exists regarding the best anastomotic method for pancreaticoduodenectomy (PD). We aimed to evaluate the perioperative outcomes of PD with stapled anastomosis (SA) versus hand-sewn anastomosis (HA) of gastrojejunostomy or duodenojejunostomy.

METHODS

We conducted a systematic search of electronic information sources, including MEDLINE; EMBASE; CINAHL; the Cochrane Central Register of Controlled Trials (CENTRAL); the World Health Organization International Clinical Trials Registry; ClinicalTrials.gov; ISRCTN Register, and bibliographic reference lists. We applied a combination of free text and controlled vocabulary search adapted to thesaurus headings, search operators and limits in each of the above databases. Delayed gastric emptying (DGE), postoperative pancreatic fistula (POPF), anastomotic bleeding, anastomotic leak, intra-abdominal abscess and mortality were defined as the outcome parameters. Combined overall effect sizes were calculated using fixed-effect or random-effects models.

RESULTS

We identified 1 randomised controlled trial (RCT) and 5 observational studies reporting a total of 890 patients who underwent PD with SA (n = 300) or conventional HA (n = 590). Our analysis demonstrated that SA significantly reduced postoperative DGE (OR: 0.37, 95% CI 0.25-0.54, P < 0.00001) but significantly increased anastomotic bleeding (OR: 13.4, 95% CI 2.96-57.41, P = 0.0007) compared to HA. No significant difference was found in POPF (OR: 0.83, 95% CI 0.56-1.21, P = 0.33); anastomotic leak (OR: 0.50, 95% CI 0.09-3.79, P = 0.58); intra-abdominal abscess (OR: 1.39, 95% CI 0.71-2.70, P = 0.34); or mortality (RD: -0.01, 95% CI 0.03-0.02, P = 0.65) between two groups.

CONCLUSIONS

Our analysis demonstrated that compared to conventional HA, SA may be associated with lower incidence of DGE after PD without increasing the risk of clinically significant POPF, anastomotic leak or mortality. However, it is associated with higher rate of anastomotic bleeding which mandates careful and precise haemostasis of the stapled line. Considering the current limited evidence, no definitive conclusion can be drawn. Future research is required.

The International Study Group of Pancreatic Surgery definition of delayed gastric emptying and the effects of various surgical modifications on the occurrence of delayed gastric emptying after pancreatoduodenectomy

BACKGROUND

A number of definitions have been used for delayed gastric emptying (DGE) after pancreatoduodenectomy and the reported rates varied widely. The International Study Group of Pancreatic Surgery (ISGPS) definition is the current standard but it is not used universally. In this comprehensive review, we aimed to determine the acceptance rate of ISGPS definition of DGE, the incidence of DGE after pancreatoduodenectomy and the effect of various technical modifications on its incidence.

DATA SOURCE

We searched PubMed for studies regarding DGE after pancreatoduodenectomy that were published from 1 January 1980 to 1 July 2015 and extracted data on DGE definition, DGE rates and comparison of DGE rates among different technical modifications from all of the relevant articles.

RESULTS

Out of 435 search results, 178 were selected for data extraction. The ISGPS definition was used in 80% of the studies published since 2010 and the average rates of DGE and clinically relevant DGE were 27.7% (range: 0-100%; median: 18.7%) and 14.3% (range: 1.8%-58.2%; median: 13.6%), respectively. Pylorus preservation or retrocolic reconstruction were not associated with increased DGE rates. Although pyloric dilatation, Braun's entero-enterostomy and Billroth II reconstruction were associated with significantly lower DGE rates, pyloric ring resection appears to be most promising with favorable results in 7 out of 10 studies.

CONCLUSIONS

ISGPS definition of DGE has been used in majority of studies published after 2010. Clinically relevant DGE rates remain high at 14.3% despite a number of proposed surgical modifications. Pyloric ring resection seems to offer the most promising solution to reduce the occurrence of DGE.

Comparison of different feeding regimes after pancreatoduodenectomy - a retrospective cohort analysis

BACKGROUND

Delayed gastric emptying (DGE) is the most frequent pancreatic specific complication (PSC) after pancreaticoduodenectomy (PD). Several gastric decompression systems exist to manage DGE. Patients with a pancreatic tumor require prolonged nutrition; however, controversies exist concerning nutrition protocol after PD. The aim of the study was to assess the safety and efficacy of nasogastric (NG), gastrostomy (GT), and gastrojejunostomy (GJ) tubes with different feeding systems on postoperative courses.

METHODS

Between January 2013 and March 2016, 86 patients underwent PD with pancreaticogastrostomy. Patients were divided into three groups: GJ group with enteral nutrition (EN, n = 12, 14%), NG (n = 31, 36%) and GT groups (n = 43, 50%), both with total parenteral nutrition (TPN).

RESULTS

Patients in the GJ (n = 9, 75%) and GT (n = 18, 42%) groups had an American Society of Anesthesiologists (ASA) score of 3 more often than those in the NG group (n = 5, 16%, p ≤ 0.01). Multivariate analysis identified the GT tube with TPN as an independent risk factor of severe morbidity (p = 0.02) and DGE (p < 0.01). An ASA score of 3, jaundice, common pancreatic duct size ≤3 mm and soft pancreatic gland texture (p < 0.05) were found as independent risk factors of PSCs. Use of a GJ tube with EN, GT tube with TPN, jaundice, and PSCs were identified as independent risk factors for greater postoperative length of hospital stay (p < 0.01). Mean global hospitalization cost did not differ between groups.

CONCLUSION

GT tube insertion with TPN was associated with increased severe postoperative morbidity and DGE and should not be recommended. EN through a GJ tube after PD is feasible but does not have clear advantages on postoperative courses compared to an NG tube.

Superiority of stapled side-to-side gastrojejunostomy over conventional hand-sewn end-to-side gastrojejunostomy for reducing the risk of primary delayed gastric emptying after subtotal stomach-preserving pancreaticoduodenectomy

Background and purpose

Delayed gastric emptying (DGE) is the most common complication following pancreaticoduodenectomy (PD). The clinical efficacy of stapled side-to-side anastomosis using a laparoscopic stapling device during alimentary reconstruction in PD is not well understood and its superiority over conventional hand-sewn end-to-side anastomosis remains controversial. The objective of this study was to evaluate the effectiveness of the stapled side-to-side anastomosis in preventing the development of DGE after PD.

Methods

The subjects of this retrospective study were 137 patients who underwent pancreaticoduodenectomy, as subtotal stomach-preserving pancreaticoduodenectomy (SSPPD; n = 130), or conventional whipple procedure (n = 7) with Child reconstruction, between January 2010 and May 2014. The patients were divided into two groups according to whether they had had a stapled side-to-side anastomosis (SA group; n = 57) or a conventional hand-sewn end-to-side anastomosis (HA group; n = 80).

Results

SA reduced the operative time (SA vs. HA: 508 vs. 557 min, p = 0.028) and the incidence of delayed gastric emptying (SA vs. HA: 21.1 vs. 46.3%, p = 0.003) and was associated with shorter hospitalization (SA vs. HA: 33 vs. 39.5 days, p = 0.007). In this cohort, SA was the only significant factor contributing to a reduction in the incidence of DGE (p = 0.002).

Conclusions

Stapled side-to-side gastrojejunostomy reduced the operative time and the incidence of DGE following PD with Child reconstruction, thereby also reducing the length of hospitalization.

Does the Ileal Brake Contribute to Delayed Gastric Emptying After Pancreatoduodenectomy?

Delayed gastric emptying (DGE) represents a significant cause for morbidity following pancreatoduodenectomy (PD). At a time when no specific and universally effective therapy exists to treat these patients, elucidating other potential (preventable or treatable) mechanisms for DGE is important. The aim of the manuscript was to test the hypothesis that ileal brake contributes to DGE in PD patients receiving jejunal tube feeding by systematically reviewing experimental and clinical literature. A series of clinically relevant questions were framed related to the potential role of the ileal brake in development of DGE post-PD and formed the basis of targeted literature searches. A comprehensive search of major reference databases from January 1980 to June 2015 was carried out which included human and animal studies. The ileal brake is a feedback loop neurally mediated by the vagus and sympatho-adrenergic pathways and hormonally by gut peptides including glucagon-like peptide-1, peptide YY (PYY), and neurotensin. The most potent stimulus for this inhibitory reflex is intra-ileal fat. There is evidence to indicate the role of an inhibitory reflex (on gastric emptying) mediated by PYY and CCK which, in turn, are stimulated by nutrient delivery into the distal small intestine providing indirect support to the role of ileal brake in post-PD DGE. The ileal brake is a likely factor contributing to DGE post-PD. While there has been no study to directly test this hypothesis, there is compelling indirect evidence to support it. Designing a trial that would answer such a question appears to be the most appropriate way forward.

Impact of Braun anastomosis on reducing delayed gastric emptying following pancreaticoduodenectomy: a prospective, randomized controlled trial

BACKGROUND

The present study investigates the clinical impact of Braun anastomosis on delayed gastric emptying (DGE) after pylorus-preserving pancreaticoduodenectomy (PPPD).

METHODS

From February 2013 to June 2014, 60 patients were recruited for this randomized controlled trial. The incidence of DGE and its risk factors were analyzed according to whether or not Braun anastomosis was used after PPPD.

RESULTS

Thirty patients were respectively enrolled in No-Braun group and Braun group. A comparative analysis between the two groups showed no differences in sex, diagnosis, operation time, hospital stay, or postoperative complications, including pancreatic fistula. Overall DGE developed in eight patients (26.7%) in the Braun group and in 14 patients (46.7%) in the No-Braun group (P = 0.108). However, clinically relevant DGE (grades B and C) was marginally more frequent in the No-Braun group (23.3% vs. 3.3%, P = 0.052). In a multivariable analysis, No-Braun anastomosis was an independent risk factor for developing clinically relevant DGE (odds ratio = 16.489; 95% confidence interval: 1.287-211.195; P = 0.031).

CONCLUSION

The overall DGE occurrence was not different between the two groups. However, No-Braun anastomosis was an independent risk factor for developing clinically relevant DGE.

Delayed Gastric Emptying After Stapled Versus Hand-Sewn Anastomosis of Duodenojejunostomy in Pylorus-Preserving Pancreaticoduodenectomy: a Randomized Controlled trial

BACKGROUND

A retrospective analysis indicated that the incidence of delayed gastric emptying (DGE) was less after using a circular stapler (CS) for duodenojejunostomy than that after hand-sewn (HS) anastomosis in pylorus-preserving pancreaticoduodenectomy (PpPD). This randomized clinical trial compared the incidence of DGE postoperative after CS duodenojejunostomy with that of conventional HS anastomosis in PpPD.

METHODS

We randomly assigned 101 patients (age 20-80) undergoing PpPD to receive CS duodenojejunostomy (group CS, n = 50) or HS duodenojejunostomy (group HS, n = 51) in two Japanese cancer center hospitals between 2011 and 2013. The patients were stratified by institution and size of the main pancreatic duct (<3 or ≥3 mm). The primary endpoint was the incidence of grade B or C DGE according to the international definition with a non-inferiority margin of 5 %. This trial is registered with University hospital Medical Information Network (UMIN) Center: UMIN000005463.

RESULTS

Per-protocol analysis of data on 95 patients showed that grade B or C DGE was found in 4 (8.9 %) of 45 patients who underwent CS anastomosis and in 8 (16 %) of 50 patients who underwent HS anastomosis (P = 0.015). There were no differences in the overall incidence of DGE (P = 0.98), passage of the contrast medium through the anastomosis (P = 0.55), or hospital stays (P = 0.22).

CONCLUSIONS

CS duodenojejunostomy is not inferior to HS anastomosis with respect to the incidence of clinically significant DGE, justifying its use as treatment option.

Braun enteroenterostomy reduces delayed gastric emptying: A systematic review and meta-analysis

BACKGROUND

It remains controversial whether the additional Braun enteroenterostomy (BEE) is necessary in decreasing delayed gastric emptying (DGE) following pancreaticoduodenectomy (PD). This meta-analysis aims to assess the efficacy of the additional BEE in reducing DGE after PD.

METHODS

PubMed, EMBASE, Science Citation Index and The Cochrane Library were searched to identify relevant studies. Articles published before May 15, 2015 comparing BEE with traditional gastrojejunostomy during PD were selected. The evaluated end points consist of intro-operative outcomes as well as postoperative complications.

RESULTS

Seven observational clinical studies that recruited 1401 patients were included. This meta-analysis indicated that the occurrence of DGE was lower in Braun group (odds ratio [OR], 0.30; 95% confidence interval [CI], 0.15 to 0.60; P = 0.0007). Overall morbidity (OR, 0.61; 95%CI, 0.47 to 0.80; P = 0.0003) and the length of hospital stay (LOS) (weighted mean difference [WMD], -1.80; 95%CI, -3.4 to -0.18; p = 0.03) were also in favor of the Braun group. However, Braun group had no advantage over Non-Braun group in terms of intra-operative blood loss, mortality, pancreatic fistula, bile Leakage and intra-abdominal abscess.

CONCLUSION

The additional of BEE plays an important role in reducing DGE, overall morbidity and LOS.

Braun Enteroenterostomy Following Pancreaticoduodenectomy: A Systematic Review and Meta-Analysis

Pancreaticoduodenectomy (PD) holds high postoperative morbidity. How to resolve this issue is challenged. An additional anastomosis (Braun enteroenterostomy) following PD may decrease the postoperative morbidity, but holds conflicting results. The objective of this study is to investigate the advantages and disadvantages of Braun enteroenterostomy in PD.Clinical studies compared perioperative outcomes between the Braun group and the non-Braun group following PD before December 21, 2014 were retrieved and filtered from PubMed, EMBASE, Web of Science, the Cochrane Library, and Chinese electronic databases (VIP database, WanFang database, and CNKI database). Relevant data were extracted according to predesigned sheets. Blood loss, operating time, and postoperative mortality and morbidity were evaluated using odds ratio (OR), weighted mean difference, or standard mean difference (SMD).Ten studies concerning 1614 patients were included. No significant differences between the Braun and the non-Braun group were identified in mortality (OR: 0.65, 95% confidence interval [CI]: 0.26-1.60), intraoperative blood loss (SMD: -0.035, 95% CI: -0.253 to 0.183), postoperative pancreatic fistula (POPF) (OR: 0.67, 95% CI: 0.35-1.67), bile leakage (OR: 0.537, 95% CI: 0.287-1.004), postoperative gastrointestinal hemorrhage (OR: 1.17, 95% CI: 0.578-2.385), intraabdominal abscesses (OR: 0.793, 95% CI: 0.444-1.419), wound complications (OR: 0.806, 95% CI: 0.490-1.325), and hospital stay (SMD: -0.098, 95% CI: -0.23 to 0.033). Braun enteroenterostomy extended operating time (SMD: 0.39, 95% CI: 0.02-0.78), but it was associated with lower reoperation rate (OR: 0.380, 95% CI: 0.149-0.968), lower morbidity rate (OR: 0.66, 95% CI: 0.49-0.91), lower clinically relevant delayed gastric emptying (Grades B and C) (OR: 0.375, 95% CI: 0.164-0.858), lower nasogastric tube reinsertion (OR: 0.436, 95% CI: 0.232-0.818), and less postoperative vomiting (OR: 0.444, 95% CI: 0.262-0.755).Braun enteroenterostomy can be safely performed during PD. It is beneficial for patients and could be recommended in PD from the current published data.PROSPERO registration number: CRD42015016198.

Effect of antecolic or retrocolic reconstruction of the gastro/duodenojejunostomy on delayed gastric emptying after pancreaticoduodenectomy: a meta-analysis

BACKGROUND

Delayed gastric emptying (DGE) is one of the most frequent complications after pancreaticoduodenectomy (PD). This meta-analysis aimed to evaluate the effect of antecolic versus retrocolic reconstruction of gastro/duodenojejunostomy on DGE after PD.

METHODS

Randomized controlled trials (RCTs) comparing antecolic versus retrocolic reconstruction of gastro/duodenojejunostomy on DGE after PD were eligible for inclusion. Pooled estimates of treatment effect were calculated using either the fixed effects model or random effects model.

RESULTS

Five RCTs involving 534 randomized patients were eligible. The comparison of DGE showed no significant difference (odds ratio, 0.66; 95% confidence interval, 0.32 to 1.33; P = 0.24). The antecolic and retrocolic groups also had comparable outcomes for clinical parameters related to DGE, other complications, hospital mortality, and length of hospital stay.

CONCLUSIONS

The route of gastro/duodenojejunostomy reconstruction has no impact on DGE after PD. Therefore, the choice of reconstruction route should be selected according to the surgeon's preference.

Peri-operative risk factors for delayed gastric emptying after a pancreaticoduodenectomy

BACKGROUND

Delayed gastric emptying (DGE) is a frequent cause of morbidity, prolonged hospital stay and readmission after a pancreaticoduodenectomy (PD). We sought to evaluate predictive peri-operative factors for DGE after a PD.

METHODS

Four hundred and sixteen consecutive patients who underwent a PD at our tertiary referral centre were identified. Univariate and multivariate (MV) logistic regression models were used to assess peri-operative factors associated with the development of clinically significant DGE and a post-operative pancreatic fistula (POPF).

RESULTS

DGE occurred in 24% of patients (n = 98) with Grades B and C occurring at 13.5% (n = 55) and 10.5% (n = 43), respectively. Using MV regression, a body mass index (BMI) ≥35 [odds ratio (OR) = 3.19], operating room (OR) length >5.5 h (OR = 2.72) and prophylactic octreotide use (OR = 2.04) were independently associated with an increased risk of DGE. DGE patients had a significantly longer median hospital stay (12 versus 7 days), higher 90-day readmission rates (32% versus 18%) and an increased incidence of a pancreatic fistula (59% versus 27%). When controlling for POPF, only OR length >5.5 h (OR 2.73) remained significantly associated with DGE.

CONCLUSIONS

DGE remains a significant cause of morbidity, increased hospital stay and readmission after PD. Our findings suggest patients with a BMI ≥35 or longer OR times have a higher risk of DGE either independently or through the development of POPF. These patients should be considered for possible enteral feeding tube placement along with limited octreotide use to decrease the potential risk and consequences of DGE.

Delayed gastric emptying after pancreaticoduodenectomy. Risk factors, predictors of severity and outcome. A single center experience of 588 cases

BACKGROUND

Delayed gastric emptying (DGE) is a common complication after pancreaticoduodenectomy (PD). This study was designed to evaluate perioperative risk variables for DGE after PD and analyze the factors that predict its severity.

PATIENTS AND METHOD

Demographic data, preoperative, intraoperative, and postoperative variables were collected.

RESULTS

A total of 588 consecutive patients underwent PD. One hundred and five patients (17.9 %) developed DGE of any type. Forty-three patients (7.3 %) had a type A, 53 patients (9.01 %) had DGE type B, and the remaining nine patients (1.5 %) had DGE type C. BMI > 25, diabetes mellitus (DM), preoperative biliary drainage, retrocolic reconstruction, type of pancreatic reconstruction, presence of complications, postoperative pancreatic fistula (POPF), and bile leaks were significantly associated with a higher incidence of DGE. Thirty-three (31.4 %) patients were diagnosed as primary DGE, while 72 (68.5 %) patients had DGE secondary to concomitant complications. Type B and C DGE were significantly noticed in secondary DGE (P = 0.04). Hospital stay was significantly shorter in primary DGE.

CONCLUSION

Retrocolic GJ, DM, presence of complications, type of pancreatic reconstruction, and severity of POPF were independent significant risk factors for development of DGE. Type B and C DGE were significantly more in secondary DGE.

Meta-analysis of subtotal stomach-preserving pancreaticoduodenectomy vs pylorus preserving pancreaticoduodenectomy

AIM: To investigate the differences in outcome following pylorus preserving pancreaticoduodenectomy (PPPD) and subtotal stomach-preserving pancreaticoduodenectomy (SSPPD).

METHODS: Major databases including PubMed (Medline), EMBASE and Science Citation Index Expanded and the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library were searched for comparative studies between patients with PPPD and SSPPD published between January 1978 and July 2014. Studies were selected based on specific inclusion and exclusion criteria. The primary outcome was delayed gastric emptying (DGE). Secondary outcomes included operation time, intraoperative blood loss, pancreatic fistula, postoperative hemorrhage, intraabdominal abscess, wound infection, time to starting liquid diet, time to starting solid diet, period of nasogastric intubation, reinsertion of nasogastric tube, mortality and hospital stay. The pooled odds ratios (OR) or weighted mean difference (WMD) with 95% confidence intervals (95%CI) were calculated using either a fixed-effects or random-effects model.

RESULTS: Eight comparative studies recruiting 650 patients were analyzed, which include two RCTs, one non-randomized prospective and 5 retrospective trial designs. Patients undergoing SSPPD experienced significantly lower rates of DGE (OR = 2.75; 95%CI: 1.75-4.30, P < 0.00001) and a shorter period of nasogastric intubation (OR = 2.68; 95%CI: 0.77-4.58, P < 0.00001), with a tendency towards shorter time to liquid (WMD = 2.97, 95%CI: -0.46-7.83; P = 0.09) and solid diets (WMD = 3.69, 95%CI: -0.46-7.83; P = 0.08) as well as shorter inpatient stay (WMD = 3.92, 95%CI: -0.37-8.22; P = 0.07), although these latter three did not reach statistical significance. PPPD, however, was associated with less intraoperative blood loss than SSPPD [WMD = -217.70, 95%CI: -429.77-(-5.63); P = 0.04]. There were no differences in other parameters between the two approaches, including operative time (WMD = -5.30, 95%CI: -43.44-32.84; P = 0.79), pancreatic fistula (OR = 0.91; 95%CI: 0.56-1.49; P = 0.70), postoperative hemorrhage (OR = 0.51; 95%CI: 0.15-1.74; P = 0.29), intraabdominal abscess (OR = 1.05; 95%CI: 0.54-2.05; P = 0.89), wound infection (OR = 0.88; 95%CI: 0.39-1.97; P = 0.75), reinsertion of nasogastric tube (OR = 1.90; 95%CI: 0.91-3.97; P = 0.09) and mortality (OR = 0.31; 95%CI: 0.05-2.01; P = 0.22).

CONCLUSION: SSPPD may improve intraoperative and short-term postoperative outcomes compared to PPPD, especially DGE. However, these findings need to be further ascertained by well-designed randomized controlled trials.

Effect of Billroth II or Roux-en-Y Reconstruction for the Gastrojejunostomy After Pancreaticoduodenectomy: Meta-analysis of Randomized Controlled Trials

BACKGROUND AND OBJECTIVES

This study aimed to compare Billroth II with Roux-en-Y reconstruction after pancreaticoduodenectomy (PD).

METHODS

A literature search was carried out to identify all randomized controlled trials (RCTs) comparing postoperative complications of Billroth II versus Roux-en-Y reconstruction following PD published from 1 January 1990 to 31 August 2014. Pooled risk ratios (RRs) with 95 % confidence intervals (CIs) were calculated using fixed effects or random effects models

RESULTS

In total, three RCTs with 470 patients were included. Using International Study Group of Pancreatic Surgery (ISGPS) definitions, incidences of delayed gastric emptying (DGE) [grades B and C (3.9 versus 12.9 %; RR 0.30, 95 % CI 0.11-0.79; P = 0.01), DGE grade C (0.7 versus 9.6 %; RR 0.11, 95 % CI 0.02-0.61; P = 0.01)] were significantly lower in the Billroth II group than in the Roux-en-Y group, as was the length of hospital stay (weighted mean difference -4.72, 95 % CI -8.91, -0.53; P = 0.03).

CONCLUSIONS

Meta-analysis revealed that the incidence of DGE (grades B and C) after PD can be decreased by using Billroth II rather than Roux-en-Y reconstruction.

Continuous suture of the pancreatic stump and Braun enteroenterostomy in pancreaticoduodenectomy

AIM: To investigate a new modification of pancreaticoduodenectomy (PD)-a mesh-like running suturing of the pancreatic remnant and Braun’s enteroenterostomy.

METHODS: Two hundred and three patients underwent PD from 2009 to 2014 and were classified into two groups: Group A (98 patients), who received PD with a mesh-like running suturing for the pancreatic remnant, and Braun’s enteroenterostomy; and Group B (105 patients), who received standard PD. Demographic data, intraoperative findings, postoperative morbidity and perioperative mortality between the two groups were compared by univariate and multivariate analysis.

RESULTS: Demographic characteristics between Group A and Group B were comparable. There were no significant differences between the two groups concerning perioperative mortality, and operative blood loss, as well as the incidence of the postoperative morbidity, including reoperation, bile leakage, intra-abdominal fluid collection or infection, and postoperative bleeding. Clinically relevant postoperative pancreatic fistula (POPF) and delayed gastric emptying (DGE) were identified more frequently in Group B than in Group A. Technique A (PD with a mesh-like running suturing of the pancreatic remnant and Braun’s enteroenterostomy) was independently associated with decreased clinically relevant POPF and DGE, with an odds ratio of 0.266 (95%CI: 0.109-0.654, P = 0.004) for clinically relevant POPF and 0.073 (95%CI: 0.010-0.578, P = 0.013) for clinically relevant DGE.

CONCLUSION: An additional mesh-like running suturing of the pancreatic remnant and Braun’s enteroenterostomy during PD decreases the incidence of postoperative complications and is beneficial for patients.

The effect of antecolic versus retrocolic reconstruction on delayed gastric emptying after classic non-pylorus-preserving pancreaticoduodenectomy

BACKGROUND

Delayed gastric emptying (DGE) after pancreaticoduodenectomy increases length of hospital stay and costs, and may be influenced by surgical techniques.

METHODS

We retrospectively compared 400 patients with antecolic gastrojejunostomy with 400 patients with retrocolic gastrojejunostomy for the occurrence of DGE.

RESULTS

The prevalence of DGE was 15% in the antecolic group and 21% in the retrocolic group (P = .021), and median length of stay was shorter for the former (8 vs. 10 days, P = .001). The difference was statistically significant with grade A DGE (9% vs. 14%, P = .038), but not B or C. In a multivariate analysis, DGE was influenced by retrocolic reconstruction, as well as older age, chronic pancreatitis, preoperative bilirubin level, a history of previous upper abdominal surgery, and postoperative pancreatic fistula.

CONCLUSIONS

An antecolic gastrojejunostomy for classic non-pylorus-preserving pancreaticoduodenectomy is associated with a lower incidence of mild DGE (grade A) and a shorter length of stay.

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.

Stapled gastro/duodenojejunostomy shortens reconstruction time during pylorus-preserving pancreaticoduodenectomy

AIM: To investigate whether a stapled technique is superior to the conventional hand-sewn technique for gastro/duodenojejunostomy during pylorus-preserving pancreaticoduodenectomy (PpPD).

METHODS: In October 2010, we introduced a mechanical anastomotic technique of gastro- or duodenojejunostomy using staplers during PpPD. We compared clinical outcomes between 19 patients who underwent PpPD with a stapled gastro/duodenojejunostomy (stapled anastomosis group) and 19 patients who underwent PpPD with a conventional hand-sewn duodenojejunostomy (hand-sewn anastomosis group).

RESULTS: The time required for reconstruction was significantly shorter in the stapled anastomosis group than in the hand-sewn anastomosis group (186.0 ± 29.4 min vs 219.7 ± 50.0 min, P = 0.02). In addition, intraoperative blood loss was significantly less (391.0 ± 212.0 mL vs 647.1 ± 482.1 mL, P = 0.03) and the time to oral intake was significantly shorter (5.4 ± 1.7 d vs 11.3 ± 7.9 d, P = 0.002) in the stapled anastomosis group than in the hand-sewn anastomosis group. There were no differences in the incidences of delayed gastric emptying and other postoperative complications between the groups.

CONCLUSION: These results suggest that stapled gastro/duodenojejunostomy shortens reconstruction time during PpPD without affecting the incidence of delayed gastric emptying.

Association of preoperative symptoms of gastric outlet obstruction with delayed gastric emptying after pancreatoduodenectomy

BACKGROUND

Delayed gastric emptying (DGE) is among the most common complications after pancreatoduodenectomy (PD) and might demand postoperative nutritional support. The aim of this study was to investigate the association between preoperative symptoms of gastric outlet obstruction and DGE after PD in an attempt to identify patients in whom placement of a feeding tube at time of operation might be beneficial.

METHODS

We analyzed a consecutive series of 401 patients undergoing PD from a prospective database. Preoperative symptoms of nausea, vomiting, loss of appetite, weight loss, postprandial complaints, and dysphagia were retrospectively determined. Primary outcome was clinically relevant DGE according to the International Study Group of Pancreatic Surgery classification and the necessity of postoperative insertion of a nasojejunal feeding tube.

RESULTS

The incidence of clinically relevant DGE was 33.2% (133/401 patients). A nasojejunal feeding tube was inserted in 119 patients (29.7%). Patients having ≥2 symptoms of gastric outlet obstruction except weight loss (50 patients; 12.5%), were at a greater risk of developing both DGE (21.1% vs 8.2%; P < .001) and the need for insertion of a feeding tube (21.8% vs 8.5%; P < .001). In multivariable logistic regression analysis, the presence of ≥2 symptoms of gastric outlet obstruction other than weight loss remained a significant predictor of DGE (odds ratio [OR], 3.1; 95% confidence interval [CI], 1.7-5.8) and the need for insertion of a nasojejunal feeding tube (OR, 3.1; 95% CI, 1.7-5.7).

CONCLUSION

The preoperative presence of ≥2 symptoms of gastric outlet obstruction is a significant predictor of postoperative DGE after PD. By applying this risk factor, patients in whom placement of a feeding tube during surgery should be considered can be identified.

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.

Effect of billroth II or Roux-en-Y reconstruction for the gastrojejunostomy on delayed gastric emptying after pancreaticoduodenectomy: a randomized controlled study

OBJECTIVE

Delayed gastric emptying (DGE) is one of the major complications after pancreaticoduodenectomy (PD), occurring in 14% to 61% of cases. There have been no studies that compare the incidence of DGE in terms of the reconstruction method of gastrojejunostomy performed in subtotal stomach-preserving pancreaticoduodenectomy (SSPPD). The objective of this study was to evaluate the superiority of Billroth II (B-II) to Roux-en Y (R-Y) reconstruction on decreasing the incidence of delayed gastric emptying DGE after SSPPD by a prospective randomized controlled trial.

METHODS

Between April 2008 and August 2011, 101 patients who underwent SSPPD for pancreatic head or periampullary diseases were randomly allocated to B-II reconstruction (n = 52) and R-Y reconstruction (n = 49) groups. The primary endpoint was incidence of DGE.

RESULTS

DGE occurred in 5.7% of patients in the B-II group and in 20.4% of patients in the R-Y group (P = 0.028). Patients in the B-II group had a significantly shorter hospital stay after operation than patients in the R-Y group (31.6 ± 15.0 days vs. 41.4 ± 20.5 days, P = 0.037). In terms of postoperative complications, the incidence of pancreatic fistula was significantly higher in patients with DGE (38.5%) than in patients without DGE (14.8%) (P = 0.037).

CONCLUSION

It is suggested that the incidence of DGE after SSPPD can be decreased by using B-II rather than R-Y reconstruction for gastrojejunostomy.(Clinical Trials Registry, UMIN-CTR: http://www.umin.ac.jp/ctr/, ref no. UMIN000003535).

[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.

Clinical risk factors of delayed gastric emptying in patients after pancreaticoduodenectomy: a systematic review and meta-analysis

BACKGROUND

The clinical risk factors of delayed gastric emptying (DGE) in patients after pancreaticoduodenectomy (PD) remains controversial. Herein, we conducted a systematic review to quantify the associations between clinical risk factors and DGE in patients after conventional PD or pylorus preserving pancreaticoduodenectomy (PPPD).

METHODS

A systematic search of electronic databases (PubMed, EMBASE, OVID, Web of Science, The Cochrane Library) for studies published from 1970 to 2012 was performed. Cohort, case-control studies, and randomized controlled trials that examined clinical risk factors of DGE were included.

RESULTS

Eighteen studies met final inclusion criteria (total n = 3579). From the pooled analyses, preoperative diabetes (OR 1.49, 95% CI, 1.03-2.17), pancreatic fistulas (OR 2.66, 95% CI, 1.65-4.28), and postoperative complications (OR 4.71, 95% CI, 2.61-8.50) were significantly associated with increased risk of DGE; while patients with preoperative biliary drainage (OR 0.68, 95% CI, 0.48-0.97) and antecolic reconstruction (OR 0.17, 95% CI, 0.07-0.41) had decreased risk of DGE development. Gender, malignant pathology, preoperative jaundice, intra-operative transfusion, PD vs. PPPD and early enteral feeding were not significantly associated with DGE development (all P > 0.05).

CONCLUSIONS

Our findings demonstrate that preoperative diabetes, pancreatic fistulas, and postoperative complications were clinical risk factors predictive for DGE. Antecolic reconstruction and preoperative biliary drainage result in a reduction in DGE. Knowledge of these risk factors may assist in identification and appropriate referral of patients at risk of DGE.