Is there an optimal time for laparoscopic cholecystectomy in acute cholecystitis?

Cost-effectiveness analysis of robotic cholecystectomy in the treatment of benign gallbladder disease

BACKGROUND

Laparoscopic cholecystectomy is the current standard of care treatment for benign gallbladder disease. Robotic cholecystectomy is another approach for performing cholecystectomy that offers a surgeon better dexterity and visualization. However, robotic cholecystectomy may increase cost without sufficient evidence to suggest an improvement in clinical outcomes. The purpose of this study was to construct a decision tree model to compare cost-effectiveness of laparoscopic cholecystectomy and robotic cholecystectomy.

METHODS

Complication rates and effectiveness associated with robotic cholecystectomy and laparoscopic cholecystectomy over a 1-year time frame were compared using a decision tree model populated with data from the published literature. Cost was calculated using Medicare data. Effectiveness was represented by quality-adjusted life-years. The primary outcome of the study was incremental cost-effectiveness ratio, which compares the cost per quality-adjusted life-year of the 2 interventions. The willingness-to-pay threshold was set at $100,000/quality-adjusted life-year. Results were confirmed with 1-way, 2-way, and probabilistic sensitivity analyses varying branch-point probabilities.

RESULTS

The studies used in our analysis included 3,498 patients who underwent laparoscopic cholecystectomy, 1,833 patients who underwent robotic cholecystectomy, and 392 patients who required conversion to open cholecystectomy. Laparoscopic cholecystectomy produced 0.9722 quality-adjusted life-years, costing $9,370.06. Robotic cholecystectomy produced an additional 0.0017 quality-adjusted life-years at an additional $3,013.64. These results equate to an incremental cost-effectiveness ratio of $1,795,735.21/quality-adjusted life-year. This exceeds the willingness-to-pay threshold, making laparoscopic cholecystectomy the more cost-effective strategy. Sensitivity analyses did not alter results.

CONCLUSION

Traditional laparoscopic cholecystectomy is the more cost-effective treatment modality for benign gallbladder disease. At present, robotic cholecystectomy is not able to improve clinical outcomes enough to justify its added cost.

Analysis of deficiencies in care following cholecystectomy

INTRODUCTION

Failure To Rescue was first defined in patients who died due to a complication following (open) cholecystectomy but research into the relevant factors has been scarce. This study was designed to determine a chronological sequence of deficiencies in care.

METHODS

Adult patients who died under the care of a surgeon following cholecystectomy in Queensland were identified from the Australian and New Zealand Audit of Surgical Mortality (ANZASM) database.

RESULTS

Not unexpectedly, this is a high-risk patient population: median age of the 48 patients was 74.5 years and the median number of comorbidities and American Society of Anesthesiologists class was 4. Death occurred on postoperative day 6. Most deaths occurred at the end of the week. Over 80% of deaths followed emergency cholecystectomy. In almost half the patients, there were no deficiencies in care. Most common deficiency was during postoperative management (i.e. Failure To Rescue), however, significant deficiencies also arose prior to surgical admission; choice and timing of intervention as well as intraoperative decision-making.

CONCLUSION

Surgeons who perform cholecystectomy need to be aware of the levels at which deficiencies arise given that many may be preventable.

Early laparoscopic cholecystectomy is superior to delayed acute cholecystitis: a meta-analysis of case-control studies

BACKGROUND

Since the advent of laparoscopic cholecystectomy (LC) there has been continued debate regarding the management of acute cholecystitis with either early or delayed LC. Nearly all studies have demonstrated that early LC has a significantly shorter total length of hospital stay compared with delayed LC. Although previous randomized controlled trials and meta-analysis have shown clinical outcomes to favour early surgery, clinical practice continues to vary significantly worldwide. In addition, there is much confusion in the optimal timing for early LC with definitions of early varying from 72 h to 7 days. There have been numerous case-control studies investigating the timing of LC in acute cholecystitis. The aim of this paper is to pool the results from all case-control studies to investigate outcomes including mortality rates, complication rates, length of hospital stay and conversion rates to open procedures.

METHODS

A search of electronic databases was performed for case-control studies published between 1985-February 2015.

RESULTS

Results from 77 case-control studies showed statistically significant reductions in mortality, complications, bile duct leaks, bile duct injuries, wound infections, conversion rates, length of hospital stay and blood loss associated with early LC. Although LC within the 72-h window is optimal, patients operated after this window still benefit from early surgery compared to delayed surgery. The duration of symptoms in acute cholecystitis should not influence the surgeons' willingness to operate acutely.

CONCLUSIONS

Early LC is clearly superior to delayed LC in acute cholecystitis. The most recent evidence-based practice strongly suggests that early LC should be standard of care in the management of acute cholecystitis.

Acute acalculous cholecystitis in the critically ill: risk factors and surgical strategies

PURPOSE

Acute acalculous cholecystitis (AAC) is characterized by severe gallbladder inflammation without cystic duct obstruction. Critical illness and neurological deficits are often associated with AAC, and early radiologic imaging is necessary for the detection and timely treatment of AAC. In critically ill patients, effective surgical management is difficult. This review examines the three common surgical treatments for AAC (open cholecystectomy (OC), laparoscopic cholecystectomy (LC), or percutaneous cholecystostomy (PC)), their prevalence in current literature, and the perioperative outcomes of these different approaches using a large retrospective database.

MATERIALS AND METHODS

This review examined literature gathered from PubMed and Google Scholar to select more than 50 sources with data pertinent to AAC; of which 20 are described in a summary table. Outcomes from our previous research and several updated results were obtained from the University HealthSystem Consortium (UHC) database.

RESULTS

LC has proven effective in treating AAC when the risks of general anesthesia and the chance for conversion to OC are low. In critically ill patients with multiple comorbidities, PC or OC may be the only available options. Data in the literature and an examination of outcomes within a national database indicate that for severely ill patients, PC may be safer and met with better outcomes than OC for the healthier set of AAC patients.

CONCLUSIONS

We suggest a three-pronged approach to surgical resolution of AAC. Patients that are healthy enough to tolerate LC should undergo LC early in the course of the disease. In critically ill patients, patients with multiple comorbidities, a high conversion risk, or who are poor surgical candidates, PC may be the safest and most successful intervention.

Determination of optimal operation time for the management of acute cholecystitis: a clinical trial

INTRODUCTION

Although all studies have reported that laparoscopic cholecystectomy (LC) is a safe and effective treatment for acute cholecystitis, the optimal timing for the procedure is still the subject of some debate.

AIM

This retrospective analysis of a prospective database was aimed at comparing early with delayed LC for acute cholecystitis.

MATERIAL AND METHODS

The LC was performed in 165 patients, of whom 83 were operated within 72 h of admission (group 1) and 82 patients after 72 h (group 2) with acute cholecystitis between January 2012 and August 2013. All data were collected prospectively and both groups compared in terms of age, sex, fever, white blood count count, ultrasound findings, operation time, conversion to open surgery, complications and mean hospital stay.

RESULTS

The study included 165 patients, 53 men and 112 women, who had median age 54 (20-85) years. The overall conversion rate was 27.9%. There was no significant difference in conversion rates (21% vs. 34%) between groups (p = 0.08). The operation time (116 min vs. 102 min, p = 0.02) was significantly increased in group 1. The complication rates (9% vs. 18%, p = 0.03) and total hospital stay (3.8 days vs. 7.9 days, p = 0.001) were significantly reduced in group 1.

CONCLUSIONS

Early LC within 72 h of admission reduces complications and hospital stay and is the preferred approach for acute cholecystitis.

Determination of optimal operation time for the management of acute cholecystitis: a clinical trial

Introduction

Although all studies have reported that laparoscopic cholecystectomy (LC) is a safe and effective treatment for acute cholecystitis, the optimal timing for the procedure is still the subject of some debate.

Aim

This retrospective analysis of a prospective database was aimed at comparing early with delayed LC for acute cholecystitis.

Material and methods

The LC was performed in 165 patients, of whom 83 were operated within 72 h of admission (group 1) and 82 patients after 72 h (group 2) with acute cholecystitis between January 2012 and August 2013. All data were collected prospectively and both groups compared in terms of age, sex, fever, white blood count count, ultrasound findings, operation time, conversion to open surgery, complications and mean hospital stay.

Results

The study included 165 patients, 53 men and 112 women, who had median age 54 (20–85) years. The overall conversion rate was 27.9%. There was no significant difference in conversion rates (21% vs. 34%) between groups (p = 0.08). The operation time (116 min vs. 102 min, p = 0.02) was significantly increased in group 1. The complication rates (9% vs. 18%, p = 0.03) and total hospital stay (3.8 days vs. 7.9 days, p = 0.001) were significantly reduced in group 1.

Conclusions

Early LC within 72 h of admission reduces complications and hospital stay and is the preferred approach for acute cholecystitis.

What is the optimal time for laparoscopic cholecystectomy in gallbladder empyema?

PURPOSE

With the accumulating experience in laparoscopic surgery, early laparoscopic cholecystectomy (LC) is increasingly offered for acute cholecystitis. However, early LC without percutaneous transhepatic gallbladder drainage (PTGBD) for gallbladder empyema is still believed to be unsafe. The purpose of this study was to determine the optimal time for LC in gallbladder empyema.

METHODS

A retrospective analysis was carried out of patients who underwent LC without PTGBD for gallbladder empyema between August 2007 and December 2010. All cases were confirmed by biopsy. The patients were divided into two groups on the basis of a cutoff of 72 h.

RESULTS

LC for gallbladder empyema was performed without PTGBD in 61 patients during the study period. The overall conversion rate was 6.6 %. Based on the 72 h cutoff, there were 33 patients in the early group and 28 in the delayed group. There were no significant differences between early and late patients with respect to operation duration (75.5 vs. 71.4 min, p = 0.537), postoperative hospital stay (4.2 vs. 3.3 days, p = 0.109), conversion rate (12.1 vs. 0 %, p = 0.118), and complication rate (12.1 vs. 3.6 %, p = 0.363). However, the early group had a significantly shorter total hospital stay (5.3 vs. 8.7 days, p = 0.001).

CONCLUSIONS

Early LC without PTGBD is safe and feasible for gallbladder empyema and is associated with a low conversion rate. Delayed LC for gallbladder empyema has no advantages and results in longer total hospital stays. LC should be performed as soon as possible within 72 h after admission to decrease length of hospital stay.

Early Laparoscopic Cholecystectomy Is the Appropriate Management for Acute Gangrenous Cholecystitis

Treatment of severe acute cholecystitis by laparoscopic cholecystectomy remains controversial because of technical difficulties and high rates of complications. We determined whether early laparoscopic cholecystectomy is appropriate for acute gangrenous cholecystitis. The medical records of 116 patients with acute gangrenous cholecystitis admitted to the Korea University Guro Hospital between January 2005 and December 2009 were reviewed. The early operation group, those patients who had cholecystectomies within 4 days of the diagnosis, was compared with the delayed operation group, who had cholecystectomies 4 days after the diagnosis. Of the 116 patients, 57 were in the early operation group and 59 were in the delayed operation group. There were no statistical differences between the groups with respect to gender, age, body mass index, operative methods, major complications, duration of symptoms, mean operative time (98 vs 107 minutes), or postoperative hospital stay. However, the total hospital stay was significantly longer in the delayed operation group. More patients underwent preoperative percutaneous cholecystostomy in the delayed operation group (3.5 vs 15.3%). Early laparoscopic cholecystectomy for acute gangrenous cholecystitis is safe and feasible. There is no advantage to postponing an urgent operation in patients with acute gangrenous cholecystitis.

Risk factors for conversion during laparoscopic cholecystectomy - experiences from a general teaching hospital

BACKGROUND AND AIMS

Laparoscopic cholecystectomy (LC) is the gold standard for treating symptomatic cholelithiasis. Conversion, however, is sometimes necessary. The aim of this study was to determine predictive factors of conversion in patients undergoing LC for various indications in elective and acute settings in a general teaching hospital.

MATERIAL AND METHODS

A retrospective analysis was performed on 972 consecutive patients who underwent a laparoscopic cholecystectomy in Máxima Medical Centre in Veldhoven, the Netherlands, from January 2000 till January 2006. Recorded data were sex, age, indication for LC, conversion to open cholecystectomy, reason for conversion, performing surgeon, co-morbidity, type of complication, length of hospital stay and 30-day mortality.

RESULTS

Conversion to open cholecystectomy was performed in 121 patients (12%). The most frequent reasons for conversion were infiltration/fibrosis of Calot's triangle (30%) and adhesions (27%). In the multivariate analyses male gender (OR 1.67, 95% CI 1.07-2.59), age >65 years (OR 2.10, 95% CI 1.32-3.34), acute cholecystitis (OR 11.8, 95% CI 6.98-20.1), recent acute cholecystitis (OR 4.71, 95% CI 2.42-9.18) and recent obstructive jaundice (OR 20.6, 95% CI 4.52-94.1) were independent predictive factors for conversion.

CONCLUSIONS

Male gender, age >65 years, (recent) acute cholecystitis and recent obstructive jaundice are independent predictive risk factors for conversion. By appreciating these risk factors for conversion, preoperative patient counselling can be improved.

Emergency laparoscopic cholecystectomy in an unselected cohort: a safe and viable option in a specialist centre

INTRODUCTION

Patients presenting acutely with symptomatic gallstone-related disease have historically had their laparoscopic cholecystectomy (LC) deferred due to perceived increased operative risks in the acute setting, particularly conversion to open surgery. The aim of this study was to compare morbidity and mortality between unselected cohorts of patients undergoing elective and 'emergency' LC in a District General Hospital.

METHODS

All gallstone-related elective and emergency admissions under the care of two specialist laparoscopic surgeons during a two-year period were included. Patients admitted acutely with a diagnosis of biliary colic, acute cholecystitis or gallstone pancreatitis underwent 'emergency' LC during the same admission. Data were collected prospectively on patient demographics, inpatient stay, post-operative course and POSSUM scores.

RESULTS

423 patients underwent LC, of which 301 (71.1%) were elective and 122 (28.9%) were 'emergency' procedures. ASA grades and POSSUM physiologic scores were similar between the two groups. The overall morbidity rates were similar in the emergency and elective groups (13.1% vs. 7.3%, p = 0.088), and there was no significant difference in the rates of major complications including conversion to open surgery (0% vs. 0.3%, NS), bile leak or re-operation between the two groups. 30-day mortality rates were similar in the two groups (0.8% vs. 0%, NS).

CONCLUSION

When performed by specialist laparoscopic surgeons, LC in the acute setting is safe with mortality and morbidity rates, including conversion to open surgery, comparable to elective LC.

A survey of surgical management of acute cholecystitis in eastern Saudi Arabia

BACKGROUND/AIM

It is now 60 years since early cholecystectomy was advocated for acute cholecystitis (AC). Yet, surgical opinion remains divided regarding its optimal timing. Furthermore, recent surveys have shown low utilization of early laparoscopic cholecystectomy (LC) for AC.

AIM

This survey aimed to assess the current management of AC in Eastern Saudi Arabia.

MATERIALS AND METHODS

A postal survey was conducted by means of a questionnaire sent to 95 surgeons practicing LC. The questionnaire addressed the surgical management of AC in relation to the subspecialty of interest, duration of consultant status, number of cholecystectomies performed per year, and the percentage performed laparoscopically.

RESULTS

There were 87 responders (92%); two were excluded from the analysis for different reasons. Early LC was preferred by 71% of the responders. With regard to the timing of LC, there was no significant difference in relation to the surgeon's subspecialty of interest or duration of consultant status. However, increased number of cholecystectomies and percentage of cholecystectomies performed with a laparoscopic approach were significantly associated with early LC.

CONCLUSION

Early LC for AC is practiced by th e majority of surgeons in Eastern Saudi Arabia. This practice is significantly associated with increased number of cholecystectomies performed as well as with the percentage performed with a laparoscopic approach. According to the current literature, early LC for AC results in a shorter total hospital stay and reduced cost of treatment.

Laparoscopic cholecystectomy for acute cholecystitis: safe implementation of successful strategies to reduce conversion rates

INTRODUCTION

A higher rate of conversion to open surgery is a well-known problem in patients with acute cholecystitis undergoing laparoscopic cholecystectomy. The aim of this study is to analyze factors which may impact on conversion rates, and to analyze our outcomes following implementation of a departmental strategy in reducing conversion rates.

MATERIALS AND METHODS

122 patients with acute cholecystitis were considered for laparoscopic cholecystectomy from July 2003 to July 2007. An audit of the results of laparoscopic cholecystectomy was done in July 2005 and a departmental strategy aimed at reducing the conversion rates was introduced. The strategies included early laparoscopic cholecystectomy (within 72 hours of admission), performed or supervised by specialist hepatobiliary surgeons, and modifications of operative techniques. This study compares the conversion rates before and after that audit. Forty-eight patients (group A) were from the preaudit period and the remaining 74 (group B) were from the postaudit period. A multivariate analysis was performed to identify risk factors for conversion to open surgery and whether the strategies implemented resulted in decrease in conversion rates.

RESULTS

In the group A patients, there was a conversion rate of 29.2%. Gallbladder wall thickness of greater than 5 mm was found to be a statistically significant (p = 0.028) risk factor for conversion to open surgery. In group B patients, the conversion rates were significantly lower at 6.75% (p = 0.001). Analyzing both groups of patients, using multivariate analysis, gallbladder wall thickness, increasing age, and preaudit operative period were found to be independently associated with conversion to open surgery.

CONCLUSIONS

This study demonstrated that, with specific strategies to decrease conversion and with technical improvements, the conversion rates can be decreased with no demonstrable difference in postoperative complications. Gallbladder wall thickness and increasing age are risk factors for conversion to open surgery.

Early versus delayed cholecystectomy in patients with biliary acute pancreatitis

BACKGROUND

In patients with biliary acute pancreatitis (AP), cholecystectomy is mandatory to prevent further biliary events, but timing of cholecystectomy remains a subject of ongoing debate. The objective of the present, retrospective study was to compare the outcomes of early (within 2 weeks after onset of disease) versus delayed cholecystectomy in patients with biliary AP.

METHODS

Between January 2000 and December 2005, 112 patients underwent cholecystectomy because of biliary AP. Thirteen patients were excluded from analysis because of necrotizing pancreatitis on the initial computed tomography. Thirty-two were operated within 14 days (group A) and 67 after a longer time period (group B). The primary end point of the study was the rate of biliary complications before cholecystectomy.

RESULTS

There were no differences regarding conversion rates to open surgery (6% vs 3%; P = .59), local (3% vs 4%; P = 1.00), or systemic complications (0% vs 3%; P = 1.00), and mean postoperative stay (4.7 vs 5.7 days; P = .40). Nevertheless, a greater rate of recurrent biliary pancreatitis was found in the group undergoing cholecystectomy later (0% vs 13%; P < .03).

CONCLUSION

The timing of cholecystectomy seems to have no clinically relevant effect on local or systemic complications, but delaying cholecystectomy is associated with an increase of biliary complications in patients with non-necrotizing biliary AP.

Surgical outcomes of open cholecystectomy in the laparoscopic era

BACKGROUND

Although laparoscopic cholecystectomy has become the standard of care for symptomatic cholelithiasis and cholecystitis, 10% to 30% of cholecystectomies are still performed in open fashion. Because the total number of cholecystectomies is increasing with time, the average patient undergoing open cholecystectomy in the laparoscopic era is older and has more comorbidities.

METHODS

The records of 1629 consecutive patients who underwent cholecystectomy from July 1997 to September 2006 were evaluated. Analysis of variance, chi-square test, logistic regression, and linear regression were used to compare the following outcomes: length of procedure, length of stay, readmission (within 15 days and within 31 days), reoperation, and complication.

RESULTS

Major complications (death, bile duct injury, bile leak, or bleeding requiring reoperation or transfusion) occurred more frequently in laparoscopic cholecystectomy patients who were coverted to open procedure (5.9%) than in those who underwent open cholecystectomy (4.4%). Mortality rates were 2.9%, 1.5%, and 0% for open, converted, and laparoscopic cholecystectomy, respectively.

CONCLUSIONS

Older patients, male patients, and patients with previous upper abdominal surgery are at higher risk for mortality. They should be considered for open cholecystectomy given their increased likelihood of major complications when laparoscopic cholecystectomy is converted to open surgery.

Laparoscopic cholecystectomy for acute cholecystitis

BACKGROUND

The aim of this study is to present our experience and results with performing laparoscopic cholecystectomy for acute cholecystitis evaluating the effect of timing of surgery and the influence of the various types of gallbladder inflammation on patient outcome.

MATERIALS AND METHODS

The patients were separated in three groups according to the time between the onset of symptoms and the operation: the "early" group was defined as laparoscopic cholecystectomy completed in the first 72 h after the onset of the symptoms, the "intermediate" group from 4 to 7 days, and the "delayed" group with symptoms lasting more than 8 days.

RESULTS

Two hundred twenty-five patients underwent laparoscopic cholecystectomy. There were 115 patients who underwent "early" surgery; 70 patients underwent "intermediate" surgery, and 70 patients underwent "delay" surgery. The total number of converted cases was 32 (12.5%). There were 124 cases of acute cholecystitis, 53 cases of gangrenous cholecystitis, 27 cases of hydrops, and 51 cases of empyema. There was no significant difference in complication rate, mortality, and postoperative hospital stay.

CONCLUSIONS

Laparoscopic cholecystectomy can be accomplished safely in most patients with acute cholecystitis. The timing of surgery has no clinical relevant effect on conversion rates, operative times, morbidity, and postoperative hospital stay.