The accordion severity grading system of surgical complications. Ann Surg. 2009;250:177-186. [PMID: 19638919 DOI: 10.1097/sla.0b013e3181afde41]

European Multicenter Study on Coronary Artery Bypass Grafting (E-CABG registry): Study Protocol for a Prospective Clinical Registry and Proposal of Classification of Postoperative Complications

BACKGROUND

Clinical evidence in coronary surgery is usually derived from retrospective, single institutional series. This may introduce significant biases in the analysis of critical issues in the treatment of these patients. In order to avoid such methodological limitations, we planned a European multicenter, prospective study on coronary artery bypass grafting, the E-CABG registry.

DESIGN

The E-CABG registry is a multicenter study and its data are prospectively collected from 13 centers of cardiac surgery in university and community hospitals located in six European countries (England, Italy, Finland, France, Germany, Sweden). Data on major and minor immediate postoperative adverse events will be collected. Data on late all-cause mortality, stroke, myocardial infarction and repeat revascularization will be collected during a 10-year follow-up period. These investigators provided a score from 0 to 10 for any major postoperative adverse events and their rounded medians were used to stratify the severity of these complications in four grades. The sum of these scores for each complication/intervention occurring after coronary artery bypass grafting will be used as an additive score for further stratification of the prognostic importance of these events.

DISCUSSION

The E-CABG registry is expected to provide valuable data for identification of risk factors and treatment strategies associated with suboptimal outcome. These information may improve the safety and durability of coronary artery bypass grafting. The proposed classification of postoperative complications may become a valuable research tool to stratify the impact of such complications on the outcome of these patients and evaluate the burden of resources needed for their treatment.

CLINICAL TRIALS NUMBER

NCT02319083.

Oncological outcomes of laparoscopic surgery of liver metastases: a single-centre experience

In the era of multimodal management of liver metastases, surgical resection remains the only curative option, with open approach still being referred to as the standard of care. Currently, the feasibility and benefits of the laparoscopic approach for liver resection have been largely demonstrated. However, its oncologic adequacy remains to be confirmed. The aim of this study is to report the oncological results of laparoscopic liver resection for metastatic disease in a single-centre experience. A single-centre database of 413 laparoscopic liver resections was reviewed and procedures for liver metastases were selected. The assessment of oncologic outcomes included analysis of minimal tumour-free margin, R1 resection rate and 3-year survival. The feasibility and safety of the procedures were also evaluated through analysis of perioperative outcomes. The study comprised 209 patients (294 procedures). Colorectal liver metastases were the commonest indication (67.9%). Fourteen patients had conversion (6.7%) and oncological concern was the commonest reason for conversion (42.8%). Median tumour-free margin was 10 mm and complete radical resections were achieved in 211 of 218 curative-intent procedures (96.7%). For patients affected by colorectal liver metastases, 1- and 3-year OS resulted 85.9 and 66.7%. For patients affected by neuroendocrine liver metastases, 1- and 3-year OS resulted 93 and 77.8%. Among the patients with metastases from other primaries, 1- and 3-year OS were 83.3 and 70.5%. The laparoscopic approach is a safe and valid option in the treatment of patients with metastatic liver disease undergoing curative resection. It does offer significant perioperative benefits without compromise of oncologic outcomes.

Proposal for Standardized Tabular Reporting of Observational Surgical Studies Illustrated in a Study on Primary Repair of Bile Duct Injuries

BACKGROUND

A standard format for reporting observational surgical studies does not exist. This creates difficulties in comparing studies and in performing synthesis through systematic reviews and meta-analyses. This article proposes a method called "standard tabular reporting" and illustrates its use in a case series of bile duct reconstructions for biliary injuries occurring during cholecystectomy.

STUDY DESIGN

A database dealing with biliary injuries was constructed in sections. Each section was designed to be turned into a table covering one element of the subject. Whenever possible, American College of Surgeons NSQIP "Classic Variables and Definitions" were used for forming sections and tables. However, most tables are original and specific to biliary injury. The database was populated from clinical records of patients who sustained a biliary injury during cholecystectomy.

RESULTS

Tables were created dealing with the following subjects: demographics, index operation, presentation, classification of injury, preoperative risk assessment, preoperative laboratory values, operative repair technique, postoperative complications, and long-term outcomes. Between 1997 and 2013, 122 primary bile duct reconstructions were performed, with 1 mortality and 47 complications. Good long-term results were obtained in 113 (92.6%) patients. No secondary surgical reconstructions have been needed.

CONCLUSIONS

Presentation of data in a standard format would facilitate comparison and synthesis of observational studies on the same subject. The biliary reconstructive methods used resulted in very satisfactory outcomes.

Laparoscopic staging in women older than 75 years with early-stage endometrial cancer: comparison with open surgical operation

OBJECTIVE

Older age is a relevant risk factor for developing endometrial cancer (EC) and has been traditionally regarded as a relative contraindication to laparoscopy. Our aim was to analyze the safety and effectiveness of laparoscopic staging in older women with EC.

METHODS

Consecutive women aged 75 years or older who underwent laparoscopic staging for EC between May 2002 and October 2012 were compared with consecutive women aged 75 years or older who underwent abdominal staging before the adoption of the laparoscopic approach in our institution. Postoperative complications were graded according to the Accordion Severity Grading System.

RESULTS

Fifty-nine women aged 75 years or older who underwent laparoscopy were compared with a cohort of 66 women aged 75 years or older who underwent open staging before the incorporation of laparoscopy. Demographic and disease characteristics, as well as the Charlson comorbidity index, were balanced between groups. Women who underwent laparoscopy had similar operative time (P = 0.14), lower blood loss (P = 0.005), and shorter length of stay (P < 0.001) in comparison with women who underwent open surgical operation. Overall, women who underwent laparoscopy experienced less postoperative complications than women in the control group (P < 0.001). In addition, focusing only on complications grade 3 or higher, we observed a trend toward decreased complication rates in the laparoscopic group (P = 0.06). No differences in survival outcomes (including time of recurrence, site of recurrence, disease-free survival, and overall survival) were recorded (P > 0.05).

CONCLUSIONS

Our findings suggest that EC patients older than 75 years may benefit from minimally invasive surgical operation and should not be denied laparoscopy based on mere chronological age.

Surgical Energy-Based Device Injuries and Fatalities Reported to the Food and Drug Administration

BACKGROUND

Energy-based devices are used in virtually every operation. Our purposes were to describe causes of energy-based device complications leading to injury or death, and to determine if common mechanisms leading to injury or death can be identified.

STUDY DESIGN

The FDA's Manufacturer and User Facility Device Experience (MAUDE) database was searched for surgical energy-based device injuries and deaths reported over 20 years (January 1994 to December 2013). Device-related complications were recorded and analyzed.

RESULTS

We analyzed 178 deaths and 3,553 injuries. Common patterns of complications were: thermal burns, 63% (n = 2,353); hemorrhage, 17% (n = 642); mechanical failure of device, 12% (n = 442); and fire, 8% (n = 294). Events were identified intraoperatively in 82% (3,056), inpatient postoperatively in 9% (n = 351), and after discharge in 9% (n = 324). Of the deaths, 12% (n = 22) occurred after discharge home. Common mechanisms for thermal burn injuries were: direct application, 30% (n = 694); dispersive electrode burn, 29% (n = 657); and insulation failure, 14% (n = 324). Thermal injury was the most common reason for death (39%, n = 70). The mechanism for these thermal injuries was most frequently direct application (84%, n = 59, p < 0.001 vs all other mechanisms). Fires were most common with monopolar "Bovie" instruments (88%, n = 258, p < 0.001 vs all other devices) when they were used in head and neck operations (66%, n = 193, p < 0.001 vs all other locations).

CONCLUSIONS

Complications due to energy-based devices occur from 4 main causes: thermal burn, hemorrhage, mechanical failure, and fire. Thermal direct application injuries are the most common reason for both injury and death.

Open versus laparoscopic liver resection for colorectal liver metastases (the Oslo-CoMet Study): study protocol for a randomized controlled trial

BACKGROUND

Laparoscopic liver resection is used in specialized centers all over the world. However, laparoscopic liver resection has never been compared with open liver resection in a prospective, randomized trial.

METHODS/DESIGN

The Oslo-CoMet Study is a randomized trial into laparoscopic versus open liver resection for the surgical management of hepatic colorectal metastases. The primary outcome is 30-day perioperative morbidity. Secondary outcomes include 5-year survival (overall, disease-free and recurrence-free), resection margins, recurrence pattern, postoperative pain, health-related quality of life, and evaluation of the inflammatory response. A cost-utility analysis of replacing open surgery with laparoscopic surgery will also be performed. The study includes all resections for colorectal liver metastases, except formal hemihepatectomies, resections where reconstruction of vessels/bile ducts is necessary and resections that need to be combined with ablation. All patients will participate in an enhanced recovery after surgery program. A biobank of liver and tumor tissue will be established and molecular analysis will be performed.

DISCUSSION

After 35 months of recruitment, 200 patients have been included in the trial. Molecular and immunology data are being analyzed. Results for primary and secondary outcome measures will be presented following the conclusion of the study (late 2015). The Oslo-CoMet Study will provide the first level 1 evidence on the benefits of laparoscopic liver resection for colorectal liver metastases.

TRIAL REGISTRATION

The trial was registered in ClinicalTrals.gov (NCT01516710) on 19 January 2012.

Development of a composite endpoint for randomized controlled trials in pancreaticoduodenectomy

BACKGROUND

Few randomized controlled trials (RCTs) have been performed in patients undergoing pancreaticoduodenectomy (PD). An important factor contributing to this is the large number of patients needed to adequately power RCTs for relevant clinical single endpoints. A PD-specific composite endpoint (CEP) could solve this problem. The aim of the present study was to develop a PD-specific CEP, consisting of complications related to PD, allowing reduction in sample sizes and improving the ability to compare outcomes.

METHODS

PD-specific CEP components were selected after a systematic review of the literature and consensus between 25 international pancreatic surgeons. Ultimately, prospective cohorts of patients who underwent PD in two high-volume HPB centers (London, UK, and Maastricht, NL) were used to assess the event rate and effect of implementing a PD-specific CEP.

RESULTS

From a total of 18 single-component endpoints, intra-abdominal abscess, sepsis, post-PD hemorrhage, bile leakage, gastrojejunostomy leakage, leakage of the pancreatic anastomosis, delayed gastric emptying, and operative mortality within 90 days were selected to be included the PD-specific CEP. All eight components had consensus definitions and a Dindo-Clavien classification of 3 or more. The incidence of the PD-specific CEP was 24.7 % in the Maastricht cohort and 23.3 % in the London cohort. These incidence rates led to a twofold reduction in the theoretical calculated sample size for an adequately powered RCT on PD using this CEP as a primary endpoint.

CONCLUSIONS

The proposed PD-specific CEP enables clinical investigators to adequately power RCTs on PD and increases the feasibility, comparability, and utility in meta-analysis.

Uncut Roux-en-Y Reconstruction after Laparoscopic Distal Gastrectomy Can Be a Favorable Method in Terms of Gastritis, Bile Reflux, and Gastric Residue

Purpose

Laparoscopic distal gastrectomy (LDG) is a well-established procedure for the treatment of early gastric cancer. Several reconstruction methods can be adopted after LDG according to tumor characteristics and surgeon preference. This study aimed to compare the remnant gastric functions after different reconstructions.

Materials and Methods

In total, 221 patients who underwent LDG between March 2005 and October 2013 were reviewed retrospectively. The patients were classified into four groups based on the reconstructive procedure: Billroth I (BI) anastomosis, Billroth II (BII) with Braun anastomosis, Roux-en-Y (RY) reconstruction, or uncut RY reconstruction. Patient demographics, surgical outcomes, and postoperative endoscopic findings were reviewed and compared among groups.

Results

Endoscopic evaluations at 11.8±3.8 months postoperatively showed less frequent gastritis and bile reflux in the remnant stomach in the RY group compared to the BI and BII groups. There was no significant difference in the gastric residue among the BI, BII, and RY groups. The incidence of gastritis and bile reflux in the uncut RY group was similar to that in the RY group, while residual gastric content in the uncut RY group was significantly smaller and less frequently observed than that in the RY group (5.8% versus 35.3%, P=0.010).

Conclusions

RY and uncut RY reconstructions are equally superior to BI and BII with Braun anastomoses in terms of gastritis and bile reflux in the remnant stomach. Furthermore, uncut RY reconstruction showed improved stasis compared to conventional RY gastrojejunostomy. Uncut RY reconstruction can be a favorable reconstructive procedure after LDG.

Laparoscopic gastrectomy in patients with previous gastrectomy for gastric cancer: a report of 17 cases

BACKGROUND

Laparoscopic gastrectomy (LAG) is increasingly used as a treatment for gastric cancer. However, it is contraindicated in patients with previous abdominal surgery, because of a higher risk of enteric injury, technical difficulties associated with adhesions, and longer operative times. The aim of this study was to assess the feasibility and clinical outcomes of LAG in patients who had previously undergone gastrectomy for gastric cancer.

MATERIALS AND METHODS

Between June 2008 and May 2012, we performed laparoscopic gastrectomies in 17 patients with remnant stomach cancer who had previously undergone open gastrectomy (10 patients) or LAG (7 patients) for early gastric cancer. We performed laparoscopic distal gastrectomies with Roux-en-Y gastrojejunostomy in 10 patients, and laparoscopic total gastrectomies in 7 patients.

RESULTS

None of the patients required conversion to open surgery or intraoperative transfusion. One patient with postoperative bleeding received a transfusion of 4 U of blood. There were 2 cases of serious postoperative complications: 1 internal herniation and 1 anastomosis leakage. One patient experienced tractitis at the trocar site. All patients had tumor-free resection margins, and there were no mortalities.

CONCLUSION

LAG is a safe and realistic treatment for patients who have previously undergone gastrectomy, although it may be associated with an increased need for adhesiolysis and longer surgery times.

Intermittent hepatic inflow occlusion during partial hepatectomy for hepatocellular carcinoma does not shorten overall survival or increase the likelihood of tumor recurrence

AIM

To investigate whether the long-term outcomes of hepatocellular carcinoma (HCC) was adversely impacted by intermittent hepatic inflow occlusion (HIO) during hepatic resection.

METHODS

1549 HCC patients who underwent hepatic resection between 1998 and 2008 were identified from a prospectively maintained database. Intermittent HIO was performed in 931 patients (HIO group); of which 712 patients had a Pringle maneuver as the mechanism for occlusion (PM group), and 219 patients had selective hemi-hepatic occlusion (SO group). There were 618 patients that underwent partial hepatectomy without occlusion (occlusion-free, OF group).

RESULTS

The 1-, 3-, and 5- year overall survival (OS) rates were 79%, 59%, and 42% in the HIO group, and 83%, 53%, and 35% in the OF group, respectively. The corresponding recurrence free survival (RFS) rates were 68%, 39%, and 22% in the HIO group, and 74%, 41%, and 18% in the OF group, respectively. There was no significant difference between the 2 groups in OS or RFS (P=0.325 and P=0.416). Subgroup analysis showed patients with blood loss over 3000 mL and those requiring transfusion suffered significantly shorter OS and RFS. Blood loss over 3000 mL and blood transfusion were independent risk factors to OS and RFS.

CONCLUSIONS

The application of intermittent HIO (PM and SO) during hepatic resection did not adversely impact either OS or RFS in patients with HCC. Intermittent HIO is still a valuable tool in hepatic resection, because high intraoperative blood loss resulting in transfusion is associated with a reduction in both OS and RFS.

Development and assessment of Memorial Sloan Kettering Cancer Center's Surgical Secondary Events grading system

BACKGROUND

Studying surgical secondary events is an evolving effort with no current established system for database design, standard reporting, or definitions. Using the Clavien-Dindo classification as a guide, in 2001 we developed a Surgical Secondary Events database based on grade of event and required intervention to begin prospectively recording and analyzing all surgical secondary events (SSE).

METHODS

Events are prospectively entered into the database by attending surgeons, house staff, and research staff. In 2008 we performed a blinded external audit of 1,498 operations that were randomly selected to examine the quality and reliability of the data.

RESULTS

Of 4,284 operations, 1,498 were audited during the third quarter of 2008. Of these operations, 79 % (N = 1,180) did not have a secondary event while 21 % (N = 318) had an identified event; 91 % of operations (1,365) were correctly entered into the SSE database. Also 97 % (129 of 133) of missed secondary events were grades I and II. There were 3 grade III (2 %) and 1 grade IV (1 %) secondary event that were missed. There were no missed grade 5 secondary events.

CONCLUSIONS

Grade III-IV events are more accurately collected than grade I-II events. Robust and accurate secondary events data can be collected by clinicians and research staff, and these data can safely be used for quality improvement projects and research.

Single-Incision Robotic Colectomy (SIRC) case series: initial experience at a single center

BACKGROUND

Laparoscopic colectomy has been associated with favorable outcomes when compared to open colectomy. Single-Incision Robotic Colectomy (SIRC) is a novel procedure hypothesized to improve upon conventional three-port laparoscopic colectomy. We hereby present and analyze our institution's initial experience with SIRC.

METHODS

We performed a retrospective review of 59 patients who underwent SIRC between May 2010 and September 2013, attempting to identify factors associated with conversion rate and postoperative complication rate.

RESULTS

Our study included 34 males (57.6%) and 25 females (42.4%). The mean age was 60.3 years (range 29-92 years), and the mean BMI was 26.6 kg/m(2) (range 14.9-39.7 kg/m(2)). We identified 31 right hemicolectomies (53.4%), 20 sigmoid colectomies (34.5%), 5 left hemicolectomies (1.7%), 2 low anterior resections (3.5%), and 1 total colectomy (1.7%). The overall median operative time was 188 min with an interquartile range of 79 min. Surgical indications included diverticulitis (n = 23, 39.0%), benign colonic mass (n = 18, 30.5%), colon cancer (n = 16, 27.1%), familial adenomatous polyposis (n = 1, 1.7%), and Crohn's disease (n = 1, 1.7%). There were four conversions to open procedure (6.8%), three conversions to multiport robotic procedure (5.1%), and one conversion to single-port laparoscopic procedure (1.7%). Reasons for conversions include difficulty mobilizing the colon and robotic equipment malfunction. Conversions were associated with both higher complication rates (62.5 vs 25.5%, p = 0.035) and longer LOS (7.4 vs 4.0 days, p = 0.0003). Postoperative complications occurred in 16 of the 59 cases (27.1%). Higher BMI was the only significant risk factor for postoperative complications. The overall median LOS was 4 ± 2 days, while the median estimated blood loss was 100 ± 90 ml.

CONCLUSIONS

Our experience has shown that SIRC can be a safe and feasible procedure for both benign and malignant disease. Patient selection is the key to improving surgical outcomes in SIRC.

Defining the post-operative morbidity index for distal pancreatectomy

BACKGROUND

Accurate assessment of complications is critical in analysing surgical outcomes. The post-operative morbidity index (PMI), derived from the Modified Accordion Severity Grading System and American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP), is a quantitative measure of post-operative morbidity. This study utilizes PMI to establish the complication burden for a distal pancreatectomy (DP).

METHODS

From 2005-2011, nine centres contributed ACS-NSQIP complication data for 655 DPs. Each complication was assigned an Accordion severity weight ranging from 0.11 for grade 1 to 1.00 for grade 6 (death). The PMI is the sum of complication severity weights divided by the total number of patients.

RESULTS

ACS-NSQIP complications occurred in 177 patients (27.0%). The non risk-adjusted PMI for DP is 0.087. Bleeding/Transfusion and Organ Space Infection were the most common complications. Frequency and burden differed across Accordion grades. While grade 4-6 complications represented only 15.4% of complication occurrences, they accounted for 30.4% of the burden. Subgroup analysis demonstrates that the PMI did not vary based on laparoscopic versus open approach or the performance of a splenectomy.

DISCUSSION

This study uses two validated systems to quantitatively establish the morbidity of a DP. The PMI allows estimation of both the frequency and severity of complications and thus provides a more comprehensive assessment of risk.

To err is human; to provide safe, quality, and cost-effective hysterectomy is divine!

Approximately 500,000 hysterectomies are performed each year in the United States despite the existence of numerous nondefinitive alternatives. Gaining an understanding of the relationship between quality, safety, and cost is critical to gynecologists performing this procedure. Analysis of quality measures includes important process measures such as time-out procedures, the Surgical Care Improvement Project, Peer Review, and Credentialing. Databases, such as the National Surgical Quality Improvement Program, are also available for review of quality. Safety is evaluated by analyzing outcomes including complications, route of procedure, and patient satisfaction. The cost of hysterectomy is impacted by continuous quality and safety improvements.

Influence of early goal-directed therapy using arterial waveform analysis on major complications after high-risk abdominal surgery: study protocol for a multicenter randomized controlled superiority trial

Background

Early goal-directed therapy refers to the use of predefined hemodynamic goals to optimize tissue oxygen delivery in critically ill patients. Its application in high-risk abdominal surgery is, however, hindered by safety concerns and practical limitations of perioperative hemodynamic monitoring. Arterial waveform analysis provides an easy, minimally invasive alternative to conventional monitoring techniques, and could be valuable in early goal-directed strategies. We therefore investigate the effects of early goal-directed therapy using arterial waveform analysis on complications, quality of life and healthcare costs after high-risk abdominal surgery.

Methods/Design

In this multicenter, randomized, controlled superiority trial, 542 patients scheduled for elective, high-risk abdominal surgery will be included. Patients are allocated to standard care (control group) or early goal-directed therapy (intervention group) using a randomization procedure stratified by center and type of surgery. In the control group, standard perioperative hemodynamic monitoring is applied. In the intervention group, early goal-directed therapy is added to standard care, based on continuous monitoring of cardiac output with arterial waveform analysis. A treatment algorithm is used as guidance for fluid and inotropic therapy to maintain cardiac output above a preset, age-dependent target value. The primary outcome measure is a combined endpoint of major complications in the first 30 days after the operation, including mortality. Secondary endpoints are length of stay in the hospital, length of stay in the intensive care or post-anesthesia care unit, the number of minor complications, quality of life, cost-effectiveness and one-year mortality and morbidity.

Discussion

Before the start of the study, hemodynamic optimization by early goal-directed therapy with arterial waveform analysis had only been investigated in small, single-center studies, including minor complications as primary endpoint. Moreover, these studies did not include quality of life, healthcare costs, and long-term outcome in their analysis. As a result, the definitive role of arterial waveform analysis in the perioperative hemodynamic assessment and care for high-risk surgical patients is unknown, which gave rise to the present trial. Patient inclusion started in May 2012 and is expected to end in 2016.

Trial registration

This trial was registered in the Dutch Trial Register (registration number NTR3380) on 3 April 2012.

Electronic supplementary material

The online version of this article (doi:10.1186/1745-6215-15-360) contains supplementary material, which is available to authorized users.

Laparoscopic and Open Abdominal Staging for Early-Stage Ovarian Cancer: Our Experience, Systematic Review, and Meta-analysis of Comparative Studies

Objectives

The aim of this study was to analyze perioperative and long-term survival outcomes after either laparoscopic or open abdominal staging for apparent early-stage ovarian cancer.

Methods

Data of consecutive women with early-stage ovarian cancer undergoing comprehensive laparoscopic staging between 2003 and 2010 were matched with a historical cohort of patients undergoing open surgery. Five-year survival outcomes were analyzed using the Kaplan-Meier method. In addition, a systematic review of the literature and meta-analysis of comparative studies was performed

Results

A total of 35 women undergoing staging via laparoscopy were compared with a cohort of 32 patients undergoing open surgery. Baseline characteristics were similar between groups. Spillage occurred in 6 and 4 patients in laparoscopic and open group, respectively (P = 0.59). Patients undergoing laparoscopy experienced longer operative time (P < 0.001), shorter hospital stay (P = 0.03), and lower postoperative complication rate (3% vs 28%; P = 0.005) than patients undergoing staging via open surgery. The median (range) follow-up period was 64 (37–106) and 100 (61–278) months for case and control, respectively (P < 0.001). Five-year disease-free survival (P = 0.12, log-rank test) and overall survival (P = 0.26, log-rank test) were not influenced by surgical approach. Pooled analyses of the literature results corroborate our results suggesting an improvement of perioperative results in the laparoscopic group in comparison with the open abdominal one. In comparison with open surgery, laparoscopy did not influenced spillage (odds ratio [OR], 0.78; 95% confidence interval [CI], 0.35–1.73) and upstaging rate (OR, 0.7; 95% CI, 0.38–1.27). No between-group differences in survival were observed (OR, 0.5; 95% CI, 0.21–1.21).

Conclusions

Laparoscopy upholds open surgery in long-term oncologic control, reducing morbidity.

Perioperative outcome after pancreatic head resection: a 10-year series of a specialized surgeon in a university hospital and a community hospital

INTRODUCTION

Hospital and surgeon volume are potential factors influencing postoperative mortality and morbidity after pancreatic resection. Data on perioperative outcome of individual surgeons in different institutions, however, are scarce. We evaluated the perioperative outcome after pancreatic head resections (PHR) performed by a high-volume pancreatic surgeon in a high-volume university department and (later) in a community hospital with low prior experience in major pancreatic surgery.

METHODS

We compared the results after PHR were performed by a single experienced surgeon between 2001 and October 2006 in a specialized unit of a German university hospital (n = 83; group A) with the results after PHR were performed in a community hospital between November 2006 and 2011 (n = 145; group B). Before the study period (-2001), the surgeon already had a personal caseload of >200 PHR. In addition to the 228 PHR analyzed here, the surgeon also had taught further >150 PHR to residents and consulting surgeons. Comparable surgical and perioperative techniques were applied in both series (e.g., types of resection and reconstruction, abdominal drains, early enteral feeding). The data of both series were prospectively recorded in SPSS databases.

RESULTS

The median age of the patients was lower in group A (58 vs. 66 years in B; p < 0.01). Indications for PHR were pancreatic cancer (A 39 % vs. B 45 %), other periampullary cancer (A 18 % vs. B 12 %), chronic pancreatitis (A 33 % vs. B 28 %), and others (A 10 % vs. B 15 %). Most PHR were pylorus preserving (64 vs. 75 %), with oncologically indicated portal vein resections in 24 % (A) or 33 % (B). The percentage of duodenum-preserving PHR was lower in group B (14 vs. 26 % in A). Mortality of PHR was 3.6 % in group A and 2.8 % in B (p = 0.72). Overall morbidity rate was 49 % (A) or 57 % (B; p = 0.25). Using the expanded Accordion classification, complications classified as grade 4 or higher occurred in 9 % (A) and 11 % (B; p = 0.74). Postoperative pancreatic leak (any grade) was documented in 26 % (A) and 25 % (B; p = 0.87).

CONCLUSIONS

Surgeon volume and a high individual experience, respectively, contribute to acceptable complication rates and low mortality rates after pancreatic head resection. An experienced surgeon can provide a good perioperative outcome after pancreatic resection even after a change of hospital or medical staff.

Applicability of the Clavien-Dindo classification to emergency surgical procedures: a retrospective cohort study on 444 consecutive patients

Background

Patients undergoing emergency surgery have a high risk for surgical complications and death. The Clavien-Dindo classification has been developed and validated in elective general surgical patients, but has not been validated in emergency surgical patients. The aim of the current study was to evaluate the Clavien-Dindo classification of surgical complications in emergency surgical patients and to study preoperative factors for risk stratification that should be included into a database of surgical complications.

Methods

A cohort of 444 consecutive patients having emergency general surgery during a three-month period was retrospectively analyzed. Surgical complications were classified according to the Clavien-Dindo classification. Preoperative risk factors for complications were studied using logistic regression analysis.

Results

Preoperatively 37 (8.3%) patients had organ dysfunctions. Emergency surgical patients required a new definition for Grade IV complications (organ dysfunctions). Only new onset organ dysfunctions or complications that significantly contributed to worsening of pre-operative organ dysfunctions were classified as grade IV complications. Postoperative complications developed in 115 (25.9%) patients, and 14 (3.2%) patients developed grade IV complication. Charlson comorbidity index, preoperative organ dysfunction and the type of surgery predicted postoperative complications.

Conclusions

The Clavien-Dindo classification of surgical complications can be used in emergency surgical patients but preoperative organ dysfunctions should be taken into account when defining postoperative grade IV complications. For risk stratification patients’ comorbidities, preoperative organ dysfunctions and the type of surgery should be taken into consideration.

Association of discharge home with home health care and 30-day readmission after pancreatectomy

BACKGROUND

We sought to determine if discharge home with home health care (HHC) is an independent predictor of increased readmission after pancreatectomy.

STUDY DESIGN

We examined 30-day readmissions in patients undergoing pancreatectomy using the Healthcare Cost and Utilization Project State Inpatient Database for California from 2009 to 2011. Readmissions were categorized as severe or nonsevere using the Modified Accordion Severity Grading System. Multivariable logistic regression models were used to examine the association of discharge home with HHC and 30-day readmission using discharge home without HHC as the reference group. Propensity score matching was used as an additional analysis to compare the rate of 30-day readmission between patients discharged home with HHC with patients discharged home without HHC.

RESULTS

Of 3,573 patients who underwent pancreatectomy, 752 (21.0%) were readmitted within 30 days of discharge. In a multivariable logistic regression model, discharge home with HHC was an independent predictor of increased 30-day readmission (odds ratio = 1.37; 95% CI, 1.11-1.69; p = 0.004). Using propensity score matching, patients who received HHC had a significantly increased rate of 30-day readmission compared with patients discharged home without HHC (24.3% vs 19.8%; p < 0.001). Patients discharged home with HHC had a significantly increased rate of nonsevere readmission compared with those discharged home without HHC, by univariate comparison (19.2% vs 13.9%; p < 0.001), but not severe readmission (6.4% vs 4.7%; p = 0.08). In multivariable logistic regression models, excluding patients discharged to facilities, discharge home with HHC was an independent predictor of increased nonsevere readmissions (odds ratio = 1.41; 95% CI, 1.11-1.79; p = 0.005), but not severe readmissions (odds ratio = 1.31; 95% CI, 0.88-1.93; p = 0.18).

CONCLUSIONS

Discharge home with HHC after pancreatectomy is an independent predictor of increased 30-day readmission; specifically, these services are associated with increased nonsevere readmissions, but not severe readmissions.

Effect of complication grade on survival following curative gastrectomy for carcinoma

AIM: To elucidate the potential impact of the grade of complications on long-term survival of gastric cancer patients after curative surgery.

METHODS: A total of 751 gastric cancer patients who underwent curative gastrectomy between January 2002 and December 2006 in our center were enrolled in this study. Patients were divided into four groups: no complications, Grade I, Grade II and Grade III complications, according to the following classification systems: T92 (Toronto 1992 or Clavien), Accordion Classification, and Revised Accordion Classification. Clinicopathological features were compared among the four groups and potential prognostic factors were analyzed. The Log-rank test was used to assess statistical differences between the groups. Independent prognostic factors were identified using the Cox proportional hazards regression model. Stratified analysis was used to investigate the impact of complications of each grade on survival.

RESULTS: Significant differences were found among the four groups in age, sex, other diseases (including hypertension, diabetes and chronic obstructive pulmonary disease), body mass index (BMI), intraoperative blood loss, tumor location, extranodal metastasis, lymph node metastasis, tumor-node-metastasis (TNM) stage, and chemotherapy. Overall survival (OS) was significantly influenced by the complication grade. The 5-year OS rates were 43.0%, 42.5%, 25.5% and 9.6% for no complications, and Grade I, Grade II and Grade III complications, respectively (P < 0.001). Age, tumor size, intraoperative blood loss, lymph node metastasis, TNM stage and complication grade were independent prognostic factors in multivariate analysis. With stratified analysis, lymph node metastasis, tumor size, and intraoperative blood loss were independent prognostic factors for Grade I complications (P < 0.001, P = 0.031, P = 0.030). Age and lymph node metastasis were found to be independent prognostic factors for OS of gastric cancer patients with Grade II complications (P = 0.034, P = 0.001). Intraoperative blood loss, TNM stage, and chemotherapy were independent prognostic factors for OS of gastric cancer patients with Grade III complications (P = 0.003, P = 0.005, P < 0.001). There were significant differences among patients with Grade I, Grade II and Grade III complications in TNM stage II and III cancer (P < 0.001, P = 0.001).

CONCLUSION: Complication grade may be an independent prognostic factor for gastric cancer following curative resection. Treatment of complications can improve the long-term outcome of gastric cancer patients.

Laparoscopic liver resection using a rubber band retraction technique: usefulness and perioperative outcome in 100 consecutive cases

BACKGROUND

Although laparoscopic liver resection is increasingly performed worldwide, surgeons still face technical challenges because of the variety of procedures used according to tumor location. In the current study, we introduce a unique retraction method using an elastic rubber band and present its learning curve in addition to the perioperative outcomes of 100 consecutive patients.

METHODS

A series of 100 consecutive patients who underwent laparoscopic liver resection using a rubber band technique between August 2008 and June 2013 were analyzed retrospectively. All the study patients underwent the rubber band technique as a method to expose the parenchymal resection plane.

RESULTS

The study subjects consisted of 56 males and 44 females with a mean age of 56.7 ± 9.6 years. There were a total of four open conversions. There was no postoperative mortality. Eighty-five patients underwent minor resection, and 15 patients underwent major resection. Among the 85 patients who underwent a minor resection, 65 patients who had favorably located tumors were compared with the 20 patients who had unfavorably located tumors. A comparison of perioperative outcomes revealed a significant difference in operative time (197.3 ± 81.9 vs. 245.9 ± 116.8 min, P = 0.040) but no differences in any other parameters. There were three (4.6 %) and one (5 %) open conversions in the favorable and unfavorable tumor location group, respectively (P = 0.954). The postoperative complication rates were not statistically different between the two groups [4 (6.2 %) vs. 1 (5 %), P = 0.848]. In the learning curve analysis, operative time and blood loss for left lateral sectionectomy (n = 14) and left hepatectomy (n = 12) and minor limited resections for posterosuperior lesions (n = 20) reached a plateau after approximately ten cases.

CONCLUSION

The retraction technique describes here using an elastic rubber band is a useful approach that results in a safe laparoscopic liver resection. Moreover, this can be applied proficiently after a reasonable learning curve.

Postoperative pain control using continuous i.m. bupivacaine infusion plus patient-controlled analgesia compared with epidural analgesia after major hepatectomy

OBJECTIVES

There is debate concerning the best mode of delivery of analgesia following liver resection, with continuous i.m. infusion of bupivacaine (CIB) plus patient-controlled i.v. analgesia (PCA) suggested as an alternative to continuous epidural analgesia (CEA). This study compares these two modalities.

METHODS

A total of 498 patients undergoing major hepatectomy between July 2004 and July 2011 were included. Group 1 received CIB + PCA (n = 429) and Group 2 received CEA (n = 69). Groups were analysed on baseline patient and surgical characteristics. Primary endpoints were pain severity scores and total opioid consumption. Secondary endpoints were pain management failures, need for rescue medication, postoperative (opioid-related) morbidity and hospital length of stay (LoS).

RESULTS

In both groups pain was well controlled and >70% of patients had no or minimal pain on PoDs 1 and 2. The numbers of patients experiencing severe pain were similar in both groups: PoD 1 at rest: 0.3% in Group 1 and 0% in Group 2 (P = 1.000); PoD 1 on movement: 8% in Group 1 and 2% in Group 2 (P = 0.338); PoD 2 at rest: 0% in Group 1 and 2% in Group 2 (P = 0.126), and PoD 2 on movement: 5% in Group 1 and 5% in Group 2 (P = 1.000). Although the CIB + PCA group required more opioid rescue medication on PoD 0 (53% versus 22%; P < 0.001), they used less opioids on PoDs 0-3 (P ≤ 0.001), had lower morbidity (26% versus 39%; P = 0.018), and a shorter LoS (7 days versus 8 days; P = 0.005).

CONCLUSIONS

The combination of CIB + PCA provides pain control similar to that provided by CEA, but facilitates lower opioid consumption after major hepatectomy. It has the potential to replace epidural analgesia, thereby avoiding the occurrence of rare but serious complications.

Comparison of short-term postoperative outcomes in totally laparoscopic distal gastrectomy versus laparoscopy-assisted distal gastrectomy

Purpose

The advantages of totally laparoscopic surgery in early gastric cancer (EGC) are unproven, and some concerns remain regarding the oncologic safety and technical difficulty. This study aimed to evaluate the technical feasibility and clinical benefits of totally laparoscopic distal gastrectomy (TLDG) for the treatment of gastric cancer compared with laparoscopy-assisted distal gastrectomy (LADG).

Materials and Methods

A retrospective review of 211 patients who underwent either TLDG (n=134; 63.5%) or LADG (n=77; 36.5%) for EGC between April 2005 and October 2013 was performed. Clinicopathologic features and surgical outcomes were analyzed and compared between the groups.

Results

The operative time in the TLDG group was significantly shorter than that in the LADG group (193 [range, 160~230] vs. 215 minutes [range, 170~255]) (P=0.021). The amount of blood loss during TLDG was estimated at 200 ml (range, 100~350 ml), which was significantly less than that during LADG, which was estimated at 400 ml (range, 400~700 ml) (P<0.001). The hospital stay in the TLDG group was shorter than that in the LADG group (7 vs. 8 days, P<0.001). One patient from each group underwent laparotomic conversion. Two patients in the TLDG group required reoperation: one for hemostasis after intraabdominal bleeding and 1 for repair of wound dehiscence at the umbilical port site.

Conclusions

TLDG for distal EGC is a technically feasible and safe procedure when performed by a surgeon with sufficient experience in laparoscopic gastrectomy and might provide the benefits of reduced operating time and intraoperative blood lossand shorter convalescence compared with LADG.

Perioperative and Long-term Outcomes of Laparoscopic, Open Abdominal, and Vaginal Surgery for Endometrial Cancer in Patients Aged 80 Years or Older

Objective

This study was undertaken to evaluate the safety, feasibility, and the long-term effectiveness of laparoscopy in endometrial cancer patients aged 80 years or older.

Methods

Data of consecutive patients aged 80 years and older undergoing laparoscopic, open abdominal, and vaginal approaches were compared. Postoperative complications were graded per the Accordion Severity Classification. Survival outcomes within the first 5 years were analyzed using the Kaplan-Meier method.

Results

Among 726 patients, 63 (9%) were aged 80 years and older. Laparoscopic, open abdominal, and vaginal surgery were performed in 22 (35%), 25 (40%), and 16 (25%) cases, respectively. All laparoscopic procedures were completed laparoscopically, whereas a conversion from vaginal to open procedure occurred (0% vs 6%; P = 0.42). Patients undergoing laparoscopy experienced similar operative time (P > 0.05), lower blood loss (P < 0.05), and shorter hospital stay (P < 0.05) than patients undergoing open and vaginal surgery. No intraoperative complications were recorded. Laparoscopy is related to a lower rate of postoperative complications (P = 0.09) and Accordion grade greater than or equal to 2 complications (P = 0.05) in comparison to open abdominal and vaginal surgery. The route of surgical approaches did not influence the 5-year disease-free (P = 0.97, log-rank test) and overall (P = 0.94, log-rank test) survivals.

Conclusions

Laparoscopy seems to represent a safe and effective treatment of endometrial cancer in women aged 80 years or older. Our data suggest that in elderly women, laparoscopic surgery improves perioperative outcomes compared with open and vaginal approaches without compromising long-term survival.

Nerve-Sparing Versus Conventional Laparoscopic Radical Hysterectomy: A Minimum 12 Months’ Follow-up Study

Objective

The objective of this study was to determinate whether the introduction of nerve-sparing (NS) procedure influences surgical and survival outcomes of cervical cancer patients undergoing laparoscopic radical hysterectomy (LRH).

Methods

Data of consecutive patients undergoing minimally invasive radical with or without NS surgery for cervical cancer were enrolled in the study.

Results

Sixty-three patients (66%) who had LRH were compared with 33 women (34%) undergoing NS-LRH. Among the NS group, 19 patients (57.6%) had surgery via minilaparoscopy (using 3-mm instruments). Baseline characteristics were similar between groups. Patients undergoing NS-LRH had shorter operative time (210 vs 257 minutes; P = 0.005) and higher number of pelvic lymph nodes yielded (29 [26–38] vs 22 [8–49]; P < 0.001) than patient in the control group. No differences in blood loss, complications, and parametrial width were observed. Patients were catheterized with an indwelling Foley catheter for a median of 3.5 days (2–7 days) and 5.5 days (4–7 days) in NS and non-NS groups, respectively (P = 0.01). Voiding dysfunctions occurred in 1 patient (3%) and 12 patients (19%) who underwent NS-LRH and standard LRH, respectively (P = 0.03). No differences in 3-year disease-free survival (P = 0.72) and overall survival (P = 0.71) were recorded.

Conclusions

The beneficial effects (in terms of operative time and number of nodes harvested) of NS-LRH are likely determined by the expertise of the surgeon because NS approach was introduced after having acquired adequate background in conventional LRH. Our data show that in experienced hands NS-LRH is safe and feasible. Moreover, NS technique reduces catheterization time and the rate of postoperative urinary dysfunction.

Variations in definition and method of retrieval of complications influence outcomes statistics after pancreatoduodenectomy: comparison of NSQIP with non-NSQIP methods

BACKGROUND

NSQIP and the Accordion Severity Grading System have recently been used to develop quantitative methods for measuring the burden of postoperative complications. However, other audit methods such as chart reviews and prospective institutional databases are commonly used to gather postoperative complications. The purpose of this study was to evaluate discordance between different audit methods in pancreatoduodenectomy--a common major surgical procedure. The chief aim was to determine how these different methods could affect quantitative evaluations of postoperative complications.

STUDY DESIGN

Three common audit methods were compared with NSQIP in 84 patients who underwent pancreatoduodenectomy. The methods were use of a prospective database, a chart review based on discharge summaries only, and a detailed retrospective chart review. The methods were evaluated for discordance with NSQIP and among themselves. Severity grading was performed using the Modified Accordion System.

RESULTS

Fifty-three complications were listed by NSQIP and 31 complications were identified that were not listed by NSQIP. There was poor agreement for NSQIP-type complications between NSQIP and the other audit methods for mild and moderate complications (kappa 0.381 to 0.744), but excellent agreement for severe complications (kappa 0.953 to 1.00). Discordance was usually due to variations in definition of the complications in non-NSQIP methods. There was good agreement among non-NSQIP methods for non-NSQIP complications for moderate and severe complications, but not for mild complications.

CONCLUSIONS

There are important differences in perceived surgical outcomes based on the method of complication retrieval. The non-NSQIP methods used in this study could not be substituted for NSQIP in a quantitative analysis unless that analysis was limited to severe complications.

Utility of early postoperative radiographs after posterior spinal fusion for adolescent idiopathic scoliosis

STUDY DESIGN

Retrospective.

OBJECTIVE

Evaluate the ability of serial full-length spine radiographs to detect clinically significant implant-related (IR) and non-implant-related (NIR) radiographical abnormalities in the first 6 months after routine posterior spinal fusion for adolescent idiopathic scoliosis (AIS).

SUMMARY OF BACKGROUND DATA

Patients with AIS are exposed to repeated doses of ionizing radiation during the course of their treatment with potential consequences for their long-term health. Postoperative algorithms for AIS often involve frequent standing plain radiographs during the first 6 months after surgery to detect IR and NIR abnormalities that may impact a patient's clinical course. However, the actual clinical utility of such repeated spine radiographs has not been studied.

METHODS

Retrospective chart and radiographical review was conducted at a single institution for patients with AIS after posterior spinal fusion between 2007 and 2012. Radiographical abnormalities identified on full-length spine radiographs or additional imaging modalities in the first 6 postoperative months were grouped into IR or NIR findings. The findings were considered clinically significant if they resulted in a deviation from an anticipated postoperative course or additional interventions.

RESULTS

For 129 patients, 761 full-length spine radiographs were obtained in the first 6 postoperative months. Eight patients (11 radiographs) had IR or NIR abnormalities, with only 2 of these considered clinically significant. Seven of the remaining 121 were identified to have IR or NIR abnormalities using other imaging modalities, with 2 considered clinically significant. The sensitivity and specificity of a full-length spine radiograph for detecting a clinically significant abnormality was 50% and 95%, respectively.

CONCLUSION

Routine full-length spine radiographs used with high frequency in the first 6 months after posterior spinal fusion rarely detected a radiographical abnormality that resulted in a meaningful change to a patient's clinical management. Blanket postoperative screening algorithms should be reconsidered to minimize patient radiation exposure.