Pancreatic abscess management by subtotal resection and packing

Post-Discharge Outcomes After Pancreatic Necrosectomy: A Single Institution Experience Following Endoscopic vs Open Debridement

BACKGROUND

Pancreatic necrosectomy outcomes have been studied extensively; however, long-term results of these procedures have not been well characterized. Our study aimed to assess the outcomes at and after discharge for patients following necrosectomy.

METHODS

Data from patients undergoing pancreatic necrosectomy at a single tertiary referral hospital from January 1, 2007, to June 1, 2019 were retrospectively analyzed. Patients were stratified into an open pancreatic necrosectomy (OPN) and an endoscopic pancreatic necrosectomy (EPN) group.

RESULTS

Cohorts were composed of an OPN (n = 30) and EPN (n = 31) groups with a mean follow-up of 22 and 13.5 months, respectively. There was no statistically significant difference in the demographics or etiology of disease; however, the presence of severe sepsis and elevated BISAP scores was significantly higher in the OPN group (40% vs 13% p = .016, 37% vs 10% p = .012, respectively). There was no significant difference in discharge parameters or disposition other than a higher need for wound care in the OPN group (14% vs 0% p =< .0001). No significant difference in the number of patients who returned to baseline, 12-month ED visits, 12-month readmissions, medical comorbidities, or long-term survival was noted.

CONCLUSIONS

Previous studies have demonstrated that OPN patients have a higher severity of disease and higher inpatient mortality; however, this does not hold true once the acute phase of the illness has passed. Long-term medical comorbidities and survival of patients with necrotizing pancreatitis who endure the primary insult do not differ in long term, regardless of the debridement modality performed for source control.

Managing the Open Abdomen in Damage Control Surgery: Should Skin-Only Closure be Abandoned?

During damage control laparotomy, surgery is abbreviated to allow for the correction of physiologic disturbances, with a plan to return to the operating theatre for definitive surgical repair. Re-entry into the abdomen is facilitated by temporary abdominal closure (TAC). Skin-only closure is one of the many techniques described for TAC Numerous sources advise against the use of this technique because of the risk of complications. This case report describes the use of skin-only closure during a damage control laparotomy. We reviewed the literature surrounding the various options for TAC to elucidate the potential role of skin-only closure after damage control laparotomy.

Temporary abdominal closure with zipper-mesh device for management of intra-abdominal sepsis

OBJECTIVE: to present our experience with scheduled reoperations in 15 patients with intra-abdominal sepsis. METHODS: we have applied a more effective technique consisting of temporary abdominal closure with a nylon mesh sheet containing a zipper. We performed reoperations in the operating room under general anesthesia at an average interval of 84 hours. The revision consisted of debridement of necrotic material and vigorous lavage of the involved peritoneal area. The mean age of patients was 38.7 years (range, 15 to 72 years); 11 patients were male, and four were female. RESULTS: forty percent of infections were due to necrotizing pancreatitis. Sixty percent were due to perforation of the intestinal viscus secondary to inflammation, vascular occlusion or trauma. We performed a total of 48 reoperations, an average of 3.2 surgeries per patient. The mesh-zipper device was left in place for an average of 13 days. An intestinal ostomy was present adjacent to the zipper in four patients and did not present a problem for patient management. Mortality was 26.6%. No fistulas resulted from this technique. When intra-abdominal disease was under control, the mesh-zipper device was removed, and the fascia was closed in all patients. In three patients, the wound was closed primarily, and in 12 it was allowed to close by secondary intent. Two patients developed hernia; one was incisional and one was in the drain incision. CONCLUSION: the planned reoperation for manual lavage and debridement of the abdomen through a nylon mesh-zipper combination was rapid, simple, and well-tolerated. It permitted effective management of severe septic peritonitis, easy wound care and primary closure of the abdominal wall.

Comparison of Outcomes between Early Fascial Closure and Delayed Abdominal Closure in Patients with Open Abdomen: A Systematic Review and Meta-Analysis

Up to the present, the optimal time to close an open abdomen remains controversial. This study was designed to evaluate whether early fascial abdominal closure had advantages over delayed approach for open abdomen populations. Medline, Embase, and Cochrane Library were searched until April 2013. Search terms included “open abdomen,” “abdominal compartment syndrome,” “laparostomy,” “celiotomy,” “abdominal closure,” “primary,” “delayed,” “permanent,” “fascial closure,” and “definitive closure.” Open abdomen was defined as “fail to close abdominal fascia after a laparotomy.” Mortality, complications, and length of stay were compared between early and delayed fascial closure. In total, 3125 patients were included for final analysis, and 1942 (62%) patients successfully achieved early fascial closure. Vacuum assisted fascial closure had no impact on pooled fascial closure rate. Compared with delayed abdominal closure, early fascial closure significantly reduced mortality (12.3% versus 24.8%, RR, 0.53, P < 0.0001) and complication incidence (RR, 0.68, P < 0.0001). The mean interval from open abdomen to definitive closure ranged from 2.2 to 14.6 days in early fascial closure groups, but from 32.5 to 300 days in delayed closure groups. This study confirmed clinical advantages of early fascial closure over delayed approach in treatment of patients with open abdomen.

Goal directed fluid resuscitation decreases time for lactate clearance and facilitates early fascial closure in damage control surgery

BACKGROUND

Damage-control surgery frequently results in open abdomen. The objective of this study was to determine whether resuscitation with goal-directed fluid therapy (GDT) using "dynamic" hemodynamic indices via modern pulse contour analysis devices such as the FloTrac Vigileo monitor leads to lower fluid requirements, subsequent quicker abdominal closure, and overall improved outcomes in these patients.

METHODS

Patients admitted to the surgical intensive care unit with open abdomen were retrospectively reviewed. Those resuscitated with Vigileo-guided GDT were matched to those resuscitated by static clinical parameters.

RESULTS

Total fluid intake and vasopressor requirements were similar in both groups. GDT with the Vigileo allowed earlier lactate clearance and reduced the number of days until abdominal wall closure by an average of .99 days.

CONCLUSIONS

Vigileo-mediated GDT did not affect fluid volume or vasopressor use in open abdomen patients, but facilitated more effective resuscitation and decreased the number of days to fascial closure, leading to shorter hospital stays. Vigileo-mediated GDT, therefore, may improve overall outcomes in open abdomen patients.

In situ high-volume modified continuous closed and/or open lavage for infected necrotizing pancreatitis

OBJECTIVES

To evaluate the clinical significance of high-volume modified continuous closed and/or open lavage for the treatment of infected necrotizing pancreatitis.

METHODS

From August 1997 to December 2006, 53 patients with infected necrotizing pancreatitis who underwent in situ high-volume (>20 L/d) continuous closed lavage using a single-lumen rubber catheter and/or open lavage were retrospectively studied in our hospital, and the advantages of this new technique were analyzed.

RESULTS

Modified continuous closed lavage was the initial treatment for all patients; in 6 patients with secondary retroperitoneal sepsis or abscess, continuous open lavage was performed. Impaired tube patency and lavage fluid retention did not occur in any of these patients. The overall mortality was 17.0% (9/53). Twelve patients underwent early surgery, and 5 (41.7%) died; 41 patients underwent delayed surgery, and 4 (9.8%) died. Significant local complications occurred in 14 patients (26.4%); the incidence of bleeding, abscess, and fistula was 13.2% (7/53), 9.4% (5/53), and 9.4% (5/53), respectively.

CONCLUSIONS

Our technique of in situ high-volume modified continuous closed and/or open lavage has produced a better control of infected necrotizing pancreatitis.

Combined anterior and posterior open treatment in infected pancreatic necrosis

OBJECTIVE

To compare the results of combined anterior and posterior open treatments (lesser sac marsupialization (LSM) + lumbostomy, LSM + L) in patients with infected pancreatic necrosis (IPN) with a previous experience of isolated LSM and with data in literature.

MATERIALS AND METHODS

Thirty-four consecutive patients operated on for IPN from 1981 to 2005 were divided into two groups based on the surgical technique used: single LSM (n = 23; period A, 1981-1998) and combined LSM + L (n = 11; period B, 1999-2005).

RESULTS

The postoperative mortality rate was 38.1 (n = 8) and 9% (n = 1) during period A and B, respectively. The most important cause of death was recurrent or persistent sepsis with multiple organ failure. The overall postoperative surgical morbidity was 57 (n = 13) and 27.2% (n = 3) in the two consecutive groups.

CONCLUSIONS

IPN is a challenging condition associated with high mortality mainly because of a persistence of sepsis despite surgery. A comparative analysis of many proposed operative procedures is difficult because of the heterogeneity in the reported series. Open approaches seem to be more effective in controlling local infection and systemic sepsis. Combining open anterior and posterior approaches is in our experience an appropriate surgical treatment in IPN patients.

Planned Staged Reoperative Necrosectomy Using an Abdominal Zipper in the Treatment of Necrotizing Pancreatitis

PURPOSE

The optimal operative treatment for severe necrotizing pancreatitis (SNP) still remains controversial. This article describes the operative approach with a planned staged necrosectomy using the "zipper" technique.

METHODS

Between 1996 and 2000, 35 patients with SNP were treated with this approach. The patient demographics, etiology and severity of SNP, hospital course, and outcome were recorded and comparisons of several parameters were made between the patients who survived and those who died.

RESULTS

Hospital mortality was 34%. A total of 16 fistulae developed in 11 patients (31%), recurrent intra-abdominal abscesses in 4 (11%), and hemorrhaging in 5 (14%). The patients who died compared with those who survived had a higher Acute Physiology and Chronic Health Evaluation (APACHE)-II score on admission (14.5 vs 9, P < 0.001), extrapancreatic extension of necrosis more often (100% vs 65%, P = 0.02), and developed postoperative hemorrhaging more often (33% vs 4%, P = 0.038). A multivariate logistic analysis revealed an APACHE-II score of > 13 on admission (P = 0.018) and an extension of necrosis behind both paracolic gutters (P < 0.001) to both be prognostic factors for mortality.

CONCLUSIONS

Severe necrotizing pancreatitis still carries significant morbidity and mortality. This surgical approach facilitates the removal of all devitalized tissue and seems to decrease the incidence of recurrent intra-abdominal infection requiring reoperation. An APACHE-II score of > or = 13 and an extension of necrosis behind both paracolic gutters was thus found to signify a worse outcome.

Addition of rectus sheath relaxation incisions to emergency midline laparotomy for peritonitis to prevent fascial dehiscence

The incidence of fascial dehiscence and incisional hernia after two methods for abdominal wound closure (rectus sheath relaxation incisions and conventional mass closure) was studied in a randomized prospective clinical trial in a consecutive series of 100 patients undergoing midline laparotomy for peritonitis. The two groups were well matched for etiologies of peritonitis, the surgical procedures performed, and the presence of known risk factors for fascial dehiscence. Fifty patients each were randomized either to the conventional continuous mass closure procedure or the rectus sheath relaxation incision technique (designed to increase wound elasticity and decrease tension in the suture line) using identical polypropylene sutures. The incidence of postoperative complications such as duration of ileus, chest infection, and wound infection were not statistically different between the two groups. The intensity of postoperative pain in the rectus sheath relaxation incision group was significantly less. The incidence of wound hematoma was significantly increased in the rectus sheath relaxation incision group. The incidences of fascial dehiscence (16% vs,28%; p < 0.05) and incisional hernia (18% vs, 30%; p < 0.05) were significantly lower after rectus sheath relaxation incisions compared to conventional mass closure. Closure of the midline laparotomy wound in cases of peritonitis using the rectus sheath relaxation technique is safe and less painful, provides increased wound elasticity and decreased tension on the suture line, and significantly decreases the incidence of wound dehiscence.

[Advantages and disadvantages of planned staged relaparotomy using the zipper technique in surgical treatment of necrotizing pancreatitis]

The rationale of surgical intervention during acute necrotizing pancreatitis is to remove necrotic tissue preserving healthy glandular parenchyma and other adjacent structures, thus limiting severe complications. Necrosectomy and debridement are the crucial in surgical management, further treatment of pancreatic bed and peripancreatic tissue are still a matter of debate among pancreatic surgeons. Zipper technique is one of the three recognized methods [table: see text] for the surgical management of necrotizing pancreatitis. The aim this study was to review the literature data about treatment using this technique, as well to compare the results of treatment with other techniques, in order to present the advantage and disadvantage of zipper technique. The main advantage of this technique is a high level of control of intraabdominal infection and other septic complications associated with necrotizing pancreatitis and its surgical management. Increased risk of development of gastrointestinal and pancreatic fistulas as well of intraabdominal bleeding is probably the main disadvantage. A flexible approach focused on the individual patients is a reasonable solution in the surgical management of the necrotizing pancreatitis.

Changing patterns in the management of penetrating abdominal trauma: the more things change, the more they stay the same

BACKGROUND

Damage control surgery (DCS) and treatment of abdominal compartment syndrome have had major impacts on care of the severely injured. The objective of this study was to see whether advances in critical care, DCS, and recognition of abdominal compartment syndrome have improved survival from penetrating abdominal injury (PAI).

METHODS

The care of 250 consecutive patients requiring laparotomy for PAI (1997-2000) was reviewed retrospectively. Organ injury patterns, survival, and use of DCS and its impact on outcome were compared with a similar experience reported in 1988.

RESULTS

Two hundred fifty patients had a positive laparotomy for PAI. Twenty-seven (10.8%) required abdominal packing and 45 (17.9%) did not have fascial closure. Seven (2.8%) required emergency department thoracotomy and 21 (8.4%) required operating room thoracotomy. Two hundred seventeen (86.8%) survived overall. Small bowel (47.2%), colon (36.4%), and liver (34.4%) were most often injured. Mortality was associated with the number of organs injured (odds ratio, 1.98; 95% confidence interval, 1.65-2.37; p < 0.001). Vascular injury was a risk factor for mortality (p < 0.001), as was need for DCS (p < 0.001), emergency department thoracotomy (p < 0.001), and operating room thoracotomy (p < 0.001). Seventy-nine percent of deaths occurred within 24 hours from refractory hemorrhagic shock. DCS was used in 17.9% (n = 45) versus 7.0% (n = 21) in 1988, with a higher survival rate (73.3% vs. 23.8%, p < 0.001). DCS was associated with significant morbidity including sepsis (42.4%, p < 0.001), intra-abdominal abscess (18.2%, p = 0.009), and gastrointestinal fistula (18.2%, p < 0.001).

CONCLUSION

Penetrating abdominal organ injury patterns and survival from PAI have remained similar over the past decade. Death from refractory hemorrhagic shock in the first 24 hours remains the most common cause of mortality. DCS and the open abdomen are being used more frequently with improved survival but result in significant morbidity.

Acute Pancreatitis: Management of Complicating Infection

Acute pancreatitis develops precipitously, changing the patient's condition from apparent good health to a critically ill status. Of patients who succumb, 80 per cent die from secondary infection in the pancreas-peripancreatic area. Infection supervenes in the second week or later after onset. Prophylactic antibiotic(s) appear to be helpful in avoiding, delaying, and/or lessening secondary sepsis. Once infection develops, treatment requires open debridement of necrotic material, drainage, and appropriate antibiotic therapy; or mortality will approach 100 per cent. Infecting organisms are commonly Escherichia coli, Klebsiella, Staphylococcus, Enterococcus, Bacteroides, and/or fungi. Antibiotics felt to be preferable for prophylactic therapy include 1) imipenem-cilastatin, 2) a quinolone + metronidazole, and 3) possibly an extended-spectrum penicillin. Treatment should be continued for 2 weeks or until recovery. Because fungus infections are occurring more often, prophylaxis with fluconazole may be warranted.

Management of necrotizing pancreatitis by repeated operative necrosectomy using a zipper technique

METHODS

From 1983 to 1995, 72 patients with necrotizing pancreatitis were treated with a general approach involving planned reoperative necrosectomies and interval abdominal wound closure using a zipper.

RESULTS

Hospital mortality was 25%. Multiple organ failure without sepsis caused early mortality in 3 of 4 patients and sepsis caused late mortality in 11 of the remaining 14. The mean number of reoperative necrosectomies/debridements was 2 (0 to 7). Fistulae developed in 25 patients (35%); 64% were treated conservatively. Recurrent intraabdominal abscesses developed in 9 patients (13%) but were drained percutaneously in 5. Hemorrhage required intervention in 13 patients (18%). Prognostic factors included APACHE-II score on admission < 13 (P = 0.005), absence of postoperative hemorrhage (P = 0.01), and peripancreatic tissue necrosis alone (P < 0.05).

CONCLUSIONS

The zipper approach effectively maximizes the necrosectomy and decreases the incidence of recurrent intraabdominal infection requiring reoperation. APACHE-II score > or = 13, extensive parenchymal necrosis, and postoperative hemorrhage signify worse outcome.

Interventional and surgical treatment of pancreatic abscess

Pancreatic abscess is one of the infectious complications of acute pancreatitis. It is a collection principally containing pus, but it may also contain variable amounts of semisolid necrotic debris. Most of these abscesses evolve from the progressive liquefaction of necrotic pancreatic and peripancreatic tissues, but some arise from infection of peripancreatic fluid or collections elsewhere in the peritoneal cavity. Included also are abscesses found after surgical débridement and drainage of pancreatic necrosis. Although open surgical treatment of infected necrosis is the established treatment of choice, percutaneous drainage of abscesses is successful in some circumstances. We used percutaneous catheter drainage in 39 patients during 1987-1995. Only 9 of 29 (31%) attempts at primary therapy were successful; 2 patients died, and 18 required subsequent surgical drainage. On the other hand, 14 of 14 patients with recurrent or residual abscesses after surgical drainage were successfully drained percutaneously. Percutaneous catheter drainage of pancreatic abscesses may be useful for initial stabilization of septic patients, drainage of further abscesses after surgical intervention (especially when access for reoperation will be difficult), associated abscesses remote from the pancreas, and selected unilocular collections at a sufficient interval after necrotizing pancreatitis to have allowed essentially complete liquefaction.

Surgical treatment of infected necrosis

Over the years, experience has shown that the cornerstone for improved survival in patients with infected pancreatic necrosis is an early, precise diagnosis followed by adequate drainage combined with modern intensive care management. In experienced hands, this goal can be achieved with different surgical approaches, provided that all septic collections are thoroughly removed and that reexploration is performed promptly if there is evidence of ongoing sepsis. If there is any concept preferable, and under what conditions, future large-scale randomized trials with precise and comparable patient stratification will have to demonstrate it.

Quality of life after treatment for pancreatitis

OBJECTIVE

The authors evaluated the morbidity, mortality, and quality of life after pancreatic debridement for necrosis and compared these values to those for quality of life after elective medical and surgical management for chronic pancreatitis.

SUMMARY BACKGROUND DATA

Quality of life after pancreatic debridement for necrosis has received little attention. Although quality of life after other pancreatic surgery has been evaluated and is though to be good, management of patients with pancreatic necrosis can be labor intensive and require extraordinary resources. Therefore, further evaluation of the quality of life achieved after treatment is appropriate.

METHODS

Forty patients (group 1) underwent operative debridement for necrosis between 1986 and 1994. Medical records of these patients were reviewed for morbidity, mortality, and in-hospital costs. Follow-up of quality of life was assessed by the Short Form-36 Health Survey. Patients in group 2 (n = 89) underwent medical management of chronic pancreatitis. Group 3 included 47 patients who underwent elective operations for ductal abnormalities. The Short Form-36 Health Surveys were administered to all three groups and compared statistically.

RESULTS

Mortality and morbidity from pancreatic debridement was 18% and 77%, respectively. Quality-of-life evaluations in groups 1 through 3 and age-matched controls were statistically similar.

CONCLUSIONS

Pancreatic debridement for necrosis requires intense application of resources and is associated with a high mortality and morbidity. Long-term follow-up shows good quality of life for patients who survive this morbid disease. This study supports the continued aggressive approach to the management of pancreatic necrosis, given that long-term outcome about quality of life is good.

Antimicrobial treatment of pancreatic infection in cats

An investigation examined the efficacy of antibiotics in a novel feline model of pancreatic infection in acute pancreatitis. Acute pancreatitis was induced in cats using an established technique. In control animals (no pancreatitis) and cats with pancreatitis, Escherichia coli (10(4) in 0.1 ml) was placed in the pancreatic duct. Reoperation was performed after 24 h in six controls and six cats with pancreatitis. E. coli was cultured from the pancreas in five control animals and five cats with pancreatitis. Reoperation was performed after 1 week in ten controls, in 11 cats with pancreatitis and in nine with pancreatitis that were treated with cefotaxime (50 mg/kg intramuscularly three times daily) started 12 h after the induction of pancreatitis and administration of E. coli. Pancreatic infection developed in eight cats with pancreatitis compared with none of the cefotaxime-treated animals and none of the controls (P < 0.05). Cefotaxime reached bactericidal levels in pancreatic tissue and juice. In conclusion, ductal administration of E. coli caused pancreatic infection only in cats with acute pancreatitis. Early administration of an appropriate antibiotic was effective in treating pancreatic infection in acute pancreatitis.

Planned ventral hernia. Staged management for acute abdominal wall defects

OBJECTIVE

Analysis of a staged management scheme for initial and definitive management of acute abdominal wall defects is provided.

METHODS

A four-staged scheme for managing acute abdominal wall defects consists of the following stages: stage I--prosthetic insertion; stage II--2 to 3 weeks after prosthetic insertion and wound granulation, the prosthesis is removed; stage III--2 to 3 days later, planned ventral hernia (split thickness skin graft [STSG] or full-thickness skin and subcutaneous fat); stage IV--6 to 12 months later, definitive reconstruction. Cases were evaluated retrospectively for benefits and risks of the techniques employed.

RESULTS

Eighty-eight cases (39 visceral edema, 27 abdominal sepsis, 22 abdominal wall resection) were managed during 8.5 years. Prostheses included polypropylene mesh in 45 cases, polyglactin 910 mesh in 27, polytetrafluorethylene in 10, and plastic in 6. Twenty-four patients died from their initial disease. The fistula rates associated with prosthetic management was 9%; no wound-related mortality occurred. Most wounds had split thickness skin graft applied after prosthetic removal. Definitive reconstruction was undertaken in 21 patients in the authors' institution (prosthetic mesh in 12 and modified components separation in 9). Recurrent hernias developed in 33% of mesh reconstructions and 11% of the components separation technique.

CONCLUSIONS

The authors concluded that 1) this staged approach was associated with low morbidity and no technique-related mortality; 2) prostheses placed for edema were removed with fascial approximation accomplished in half of those cases; 3) absorbable mesh provided the advantages of reasonable durability, ease of removal, and relatively low cost--it has become the prosthesis of choice; and 4) the modified components separation technique of reconstruction provided good results in patients with moderate sized defects.

Management of the difficult abdominal closure

Hemorrhagic shock and multiple trunk injuries, especially severe pelvic fracture, may cause massive swelling of intra-abdominal viscera and the abdominal wall, thereby precluding safe, primary abdominal wall closure. Primary closure, under tension in such patients, causes a multitude of problems including respiratory compromise, reduced cardiac output, oliguria, enterocutaneous fistulae, impaired abdominal wall nutrient blood supply, necrotizing fasciitis, evisceration, and death of the patient. Multiple methods have been described to aid the surgeon in circumventing these problems. The authors advocate the abdominal wall pack technique, which has the advantages of ease of implementation and a low rate of wound complications.

Planned reoperations and open management in critical intra-abdominal infections: prospective experience in 52 cases

Open management and "planned relaparotomies" in the treatment of critical abdominal infections have recently generated interest and hope. Most studies which examine the value of these therapeutic modalities are retrospective and include poorly stratified groups of patients. Since 1985, we have consistently applied these aggressive methods of treatment in all patients presenting with intra-abdominal infections belonging to the following groups: I) diffuse postoperative peritonitis (29 cases); II) diffuse fecal peritonitis (14 cases); and III) infected pancreatic necrosis (9 cases). The overall mortality rate was 44%; it was 55%, 14% and 56%, respectively, in the 3 groups. The abdomen was closed between reoperations in 21 patients who required an average of 1.7 relaparotomies; the mortality in this group was 24%. Thirty-one patients, who required an average of 3.8 relaparotomies, were managed with the open method resulting in a mortality of 58%. Multiple organ failure was the cause of death in 87% of the patients. We conclude that "planned relaparotomies" may have been beneficial in group II. The value of open management in patients belonging to groups I and III remains unproven. The mechanical-surgical answers to severe forms of peritonitis may have reached their limit.

Acute necrotizing pancreatitis: management by planned, staged pancreatic necrosectomy/debridement and delayed primary wound closure over drains

We reviewed our recent experience with management of 23 consecutive patients with acute necrotizing pancreatitis. All patients had documented necrotizing pancreatitis with parenchymal or peripancreatic necrosis. Our method of treatment has evolved from our previous approach of controlled open lesser sac drainage (marsupialization) to staged necrosectomy/debridement with delayed primary closure over drains. With this latter approach, hospital mortality was 4 of 23 patients (17 per cent), but significant morbidity still occurred in 12 of 23 patients (52 per cent). However, recurrent intra-abdominal abscess before discharge occurred in only one patient. We believe that this operative approach toward the severely ill patient with acute necrotizing pancreatitis who requires operative intervention will minimize the occurrence of intra-abdominal sepsis.

Surgical strategies in the treatment of pancreatic necrosis and infection

Controversy still surrounds the management of necrotic and septic complications of acute pancreatitis. A review of the literature of the past decade dealing with the surgical treatment of pancreatic necrosis, pancreatic abscess and infected pancreatic necrosis has been undertaken. Three main patterns of management could be identified: (1) 'conventional treatment', consisting of pancreatic resection or necrosectomy with drainage; (2) 'local lavage', consisting of necrosectomy followed by regional lavage; and (3) 'open management', with resection or necrosectomy followed by planned multiple re-explorations. From this review it appears that local lavage and open management offer better survival prospects than conventional treatment. Open abdomen techniques, however, are associated with an increased risk of complications, such as colonic necrosis, intestinal fistula, and intra-abdominal bleeding. Excellent results can be achieved in specialized centres with any of the three methods, provided adequate debridement and prompt reoperations are undertaken if the septic state persists.

Sequential abdominal reexploration with the zipper technique

Frequently, several multiple abdominal reexplorations are needed in patients with acute necrotizing hemorrhagic pancreatitis (ANP) or with persistent intraabdominal sepsis (PIAS). Residual undrained necrotic and septic foci lead to multiple organ failure. To provide wide-open drainage of the abdominal cavity, since 1985 we have performed sequential abdominal reexploration with the zipper technique (SARZT) in 24 patients. Apache II score was used to evaluate expected mortality. In the pancreatic necrosis group, with a mean Apache II score of 31, the expected and the observed mortality were 70% and 29%, respectively. In the PIAS group, with a mean Apache II score of 30, the expected and observed mortality were 60 and 28%, respectively. These results are attributed to the sequential reexploration of the abdominal cavity that permits excision and drainage of necrotic and septic foci.

Pancreatic abscess and other pus-harboring collections related to pancreatitis: a review of 108 cases

This is a report on 108 cases collected from 1970 to 1987, in the same department, of surgically-detected pancreatic abscesses or pus-harboring collections. The purulent areas were either of a spreading pattern or represented a clearly localized mass. To the spreading pattern belong 47 cases of necrotizing pancreatitis, without discontinuity in the clinical course from the early toxic to the late septic phase, 4 cases of acute pancreatitis, initially in remission and later complicated by septic collections, and 4 cases which developed after an acute attack of chronic pancreatitis. The abscess pattern was made up of 19 each of pseudocysts and predisposing pancreatitis, 10 cases of chronic pancreatitis, and only 5 necrotizing "nonstop" pancreatitis. The surgical treatment in all cases consisted of multiple drainages and postoperative irrigation. We exclude 3 cases of associated open packing. The etiological, clinical, and biochemical features of each group of patients are reported and discussed. Computed tomography availability seems to be the most important improvement reported as regards diagnosis and surgical tactics. The overall mortality rate was 15.7% with a significant difference between the 2 patterns (23.6% for the spreading pattern versus 7.5% for the abscess pattern). On the basis of this experience, it is possible to establish a relationship between the gross appearance of the collection and the underlying pancreatic disease with differences in terms of prognosis, morbidity, and mortality. Finally, a simple nomenclature can be chosen which is capable of distinguishing between the diverse pancreatic purulent collections. While the presence of pus may characterize the course of severe acute pancreatitis in many cases, the low incidence of "true" pancreatic abscess is emphasized.

Sequential laparotomy and zipper closure in the management of gross peripancreatic sepsis

Four cases of gross peripancreatic sepsis have been managed with repeated laparotomies and packing of the lesser sac. A zipper was used for abdominal closure in three patients and the abdomen was left open in one. Sequential laparotomy enabled repeated debridement of non-viable pancreatic and peripancreatic tissue and prevented intra-abdominal septic accumulations. An additional benefit of this technique was the frequent detection and correction of clinically unsuspected complications of the septic abdomen.

Etappenlavage: advanced diffuse peritonitis managed by planned multiple laparotomies utilizing zippers, slide fastener, and Velcro analogue for temporary abdominal closure

Etappenlavage is defined as a series of planned multiple operative procedures performed at a 24-hour interval. It includes a commitment to reexplore the patient's abdomen at the initial corrective operation. This is a report of a prospective study of 117 patients treated by etappenlavage for severe advanced suppurative peritonitis in 2 institutions. Etappenlavage was performed in 15% of all patients with operations for peritonitis. In these patients, the abdominal infection had progressed to an advanced stage of severe functional impairment. A total of 669 laparotomies were performed and the abdomen closed temporarily utilizing retention sutures (n = 45), a simple zipper (n = 26), a slide fastener (n = 29), and Velcro analogue (n = 17). An average of 6.1 procedures were necessary to control the infection. In 57% of the patients, additional complications were recognized and repaired after the initial operation. Patients were artificially ventilated for an average of 17 days. The median duration of therapy was 33 (range, 3-183) days. Twenty-eight patients died between days 3 and 71 (median, 9) after initiation of therapy. In 88%, uncomplicated wound healing was observed after wounds were closed definitely. In the last 17 patients, no complications were attributable to the use of 2 adhesive sheets of polyamide plus nylon or perlon for temporary abdomimal closure (Velcro-like artificial burr). APACHE II scoring predicted a median mortality of 47%. The actual mortality was 25%. Overall, the mortality of advanced diffuse peritonitis was reduced from a predicted 34-93% (APACHE II/SIS scoring) to 24%. Velcro analogue (artificial burr) was the most practical device for temporary abdominal closure.

Aggressive treatment of severe diffuse peritonitis: a prospective study

In a prospective study of 22 patients with diffuse peritonitis managed by the method of electively staged multiple laparotomies, the abdomen was left open in 9 patients. The patients were selected on the basis of the severity of their intra-abdominal infection: only massive faecal peritonitis, postoperative peritonitis and pancreatic abscesses were included. These amounted to only 9 per cent of all patients with intra-abdominal infection treated over a 2-year period. Up to seven re-operations were required per patient. In view of a high mortality rate of 32 per cent, the superiority of this aggressive management strategy over conventional methods is not fully established.

Early diagnosis of pancreatic infection by computed tomography-guided aspiration

We performed 92 computed tomography-guided percutaneous needle aspirations of pancreatic inflammatory masses in 60 patients suspected of harboring pancreatic infection. Thirty-six patients (60%) were found by Gram stain and culture to have a total of 41 separate episodes of pancreatic infection. Among 42 aspirates judged to be infected by computed tomography-guided aspiration, all but one were confirmed by surgery or indwelling catheter drainage. Among 50 aspirates judged to be sterile, no subsequent evidence of infection was found. All patients tolerated the procedure well and no complications were noted. As a result of this technique, we observed that pancreatic infection occurs earlier than has been previously appreciated (within 14 days of the onset of pancreatitis in 20 of the 36 patients) and that infection may recur during prolonged bouts of pancreatitis. We conclude that guided aspiration is a safe, accurate method for identifying infection of the pancreas at an early stage.

Stapled marlex mesh abdominal closure for repeat laparotomy in pancreatic disease

A series of seven cases of severe pancreatic disease have been managed by repeat laparotomy for debridement of necrotizing pancreatitis, drainage of abscesses or control of haemorrhage with stapled marlex mesh closure of the abdominal wall. The use of a stapled marlex mesh at first laparotomy provides for safe, expedient relaparotomy until sepsis or haemorrhage is controlled.

Surgery during acute pancreatitis. Observations in 50 patients

Surgery was performed during the acute phase of illness in 50 of 348 patients with acute pancreatitis. The operative mortality was 40 percent. Analysis of the indications for operation, the operative findings, and the mortality rate revealed that the suspected complications for which operation was planned were not always borne out by the operative findings. In addition, the deterioration of patients while being treated conservatively, or the presence of severe acute pancreatitis preoperatively, were not predictive of the finding of hemorrhagic or necrotizing pancreatitis at operation. In a significant proportion of patients with severe pancreatitis, the diagnosis of pancreatitis was first made at laparotomy. More use should be made of the newer investigative methods to better identify any complications which may have occurred and the necessity for operative intervention.

Use of a zipper in cardiac surgical operations

A simplified technique to gain repeated access to the median sternotomy incision is presented. The technique involves the use of a sterile polyester zipper attached to the skin edge. The sternum remains open. Unzipping the zipper allows for repeated relief of cardiac tamponade and viewing of cardiac action. Other advantages include prevention of cardiac compression or kinking of assist device cannulas from sternal closure, ease in changing of dressings, and quick removal of ventricular assist devices without reopening the sternum.

Factors contributing to fatal outcome after treatment of pancreatic abscess

The authors analyzed 27 patients with pancreatic abscess treated since 1975 at hospitals affiliated with the University of Louisville School of Medicine. Treatment consisted of careful debridement, abscess drainage, and multiple antibiotics in all patients. Overall mortality was 33%; however, only three of 17 patients treated since 1980 have died. Patients who died were more likely to have bacteremia, a residual abscess, multiple organ system failure, and/or polymicrobial growth on culture of the abscess. The proper use of soft suction drains in a dependent position reduced the rate of residual abscess to 19% compared to 67% in patients not treated in this fashion. The results identify factors that are correlates of death in patients with pancreatic abscess and emphasize the importance of prompt diagnosis and proper treatment.

Controlled open lesser sac drainage for pancreatic abscess

Recent studies suggest that morbidity and mortality in patients with pancreatic abscess can be lessened if controlled open lesser sac drainage (COLD) is performed rather than traditional closed drainage (CD). To determine whether the outcome of patients treated by COLD was more favorable, 81 consecutive patients with pancreatic abscess managed surgically between 1966 and 1985 were studied. COLD, consisting of initial wide debridement of the abscess cavity, open packing, suction drainage, repeated operative pack changes, and lavage was used in 17 patients and CD in 64 patients. Age, sex, etiology of pancreatitis, and radiographic and laboratory findings were similar between treatment groups. However, the number of patients with overt systemic sepsis and those at increased risk of death based on Ranson signs associated with the predisposing episode of pancreatitis were greater in the COLD group than in the CD group (100% vs. 61%, and 92% vs. 44%, respectively; p less than or equal to 0.05 for both). Overall mortality in COLD and CD patients was 18% and 44%, respectively (p less than 0.05). However, in patients at increased risk of death (positive Ranson signs greater than or equal to 3), mortality after COLD and CD was 18% and 70%, respectively (p less than 0.05). Controlled open drainage may be the treatment of choice in patients with pancreatic abscess precipitated by severe pancreatitis (Ranson signs greater than or equal to 3) and associated with overt systemic sepsis.

Colonic necrosis in acute pancreatitis. A complication of massive retroperitoneal suppuration

Colonic necrosis is a rare complication of peripancreatic sepsis following acute pancreatitis. Three patients with colonic necrosis associated with extensive retroperitoneal suppuration are reported. The pathogenesis of this syndrome may be explained by the tendency of pancreatic abscesses to extend widely in the retroperitoneum. Management is discussed, emphasizing the need for an aggressive surgical approach and multiple operations.

Pancreatic resection for severe acute pancreatitis

Non-operative management of acute necrotizing pancreatitis carries a mortality of up to 80 per cent. Over the last 6 years we have pursued an aggressive policy of intensive supportive therapy followed by pancreatic resection in those patients with this severe form of the disease. We have managed 15 patients in this way, 14 by subtotal pancreatic resection (usually body and tail of the gland) and one by total pancreatectomy; 7 had early overwhelming multi-system failure with a median of 4 positive prognostic factors whilst 8 were operated on later between 3 and 8 weeks (plus one at 32 weeks) and had varying clinical pictures. Eight patients had ischaemia of the transverse colon which was noted at operation in four, and presented postoperatively in the remainder. Re-operation was necessary in 13 patients to remove further slough or resect ischaemic bowel. Five patients (33 per cent) died between 10 days and 4 weeks postoperatively, death being due to sepsis and multi-system failure in four and a massive retroperitoneal haemorrhage in one. Of the ten survivors, four require insulin. Timely excision of necrotic pancreatic tissue combined with intensive supportive therapy may help reduce the high mortality in this condition.

Improved survival in 45 patients with pancreatic abscess

The reported mortality due to pancreatic abscesses after acute pancreatitis has been 30 to 50%, a statistic that has remained unchanged for decades. This is a report of 45 patients treated over 10 years, showing a dramatic improvement in survival during that period. They represent 2.5% of admissions at the Massachusetts General Hospital for acute pancreatitis. The identifiable antecedents included alcohol (38%), gallstones (11%), and surgical trauma (16%), or were unknown in 24%. Computerized tomography (CT) was clearly the best means of specific diagnosis (unequivocal evidence in 74%, suggestive in 21%). Treatment in 44 patients was surgical debridement and catheter drainage, and in one it was resection of the pancreatic head. Multiple abscesses were present at the first operation in 21 patients. Seven had second drainage procedures for additional abscesses. In the first 5 years (1974-1978), 10 of 26 patients died (38%). In the second 5 years (1979-1983), one of 19 died (5%) (p less than 0.01). Postoperative complications (84%) included wound hemorrhage (9 of 26 vs. 1 of 19), systemic sepsis (7 of 26 vs. 1 of 19), pancreatic fistula (14/45, 13 of which closed spontaneously), colonic perforation (4), duodenal perforation (2), and gastric perforation (1). The causes of death were renal and respiratory failure with sepsis (7), hemorrhage (3), and pulmonary emboli (1). Analysis of the findings shows in the second 5-year period more frequent use of CT to certify the diagnosis of pancreatic abscess earlier, a more aggressive attitude producing earlier surgical intervention, and more extensive drainage and debridement of associated necrotic tissue. Transcatheter arterial embolization was used successfully to control postoperative hemorrhage from the abscess cavity. CT-guided percutaneous catheter drainage was used occasionally for drainage of recurrent abscesses. Neither open packing of major pancreatic abscesses nor lavage of the abscess cavity, as recently advocated, was necessary.