Perforated sigmoid diverticulitis: Hartmann's procedure or resection with primary anastomosis-a systematic review and meta-analysis of randomised control trials

MICROBIOLOGICAL ANALYSIS OF ABDOMINAL CAVITY EXUDATE, BLOOD AND AFFECTED TISSUES SAMPLES FROM PATIENTS WITH INTRA-ABDOMINAL ABSCESSES IN COMPLICATED INFECTION OF ABDOMINAL CAVITY

OBJECTIVE

The aim: To conduct an analysis of the results of a microbiological examination of biological samples taken from patients with intra-abdominal abscesses.

PATIENTS AND METHODS

Materials and methods: Material for microbiological examination was collected from 60 patients during surgery and transported to laboratory at the same day. Isolation and identification of microbial pure cultures were performed by standard microbiological methods. Statistical analysis was performed using Statistica software.

RESULTS

Results: Analyzing the microbiological research results indicated importance of the sample collecting time (first or repeated surgery). In pa¬tient's blood taken during first surgery it was found a statistically significant predominance of no growth of microflora. In abdominal cav¬ity exudates anaerobic cultures increased statistically significantly in repeated surgery. It was noted that in samples taken during first sur¬gery mixed pathogens were represented mainly by facultative anaerobic cocci, then in repeated surgery anaerobic microorganisms were predominant. Examination of liver abscess content found that monoculture was isolated in 85.7 %. Blood and affected tissue samples in such patients were sterile. Investigation of samples from patients with multiple abdominal cavity abscesses revealed anaerobic microorganisms in 16.7 %. Blood samples of that patients in 40 % were sterile.

CONCLUSION

Conclusions: An analysis showed that in appendicular abscesses content gram-negatives were predominant. Gram-positive bacteria dominated in paravesical abscesses with 65 % isolates from gallbladder and 66.7 % from the affected tissue samples. In liver abscesses gram-positive cocci were isolated in 57.1 %. In multiple abdominal abscesses due to bowel perforation rod-shaped microflora was predominant (76 %) and represented by either obligate aerobes or obligate and facultative anaerobes.

Comparison of Diversion Strategies for Management of Acute Complicated Diverticulitis in a US Nationwide Cohort

IMPORTANCE

Diverticulitis of the colon is an increasingly prevalent disease with significant implications for patient quality of life and health system resource expenditure. Although several randomized clinical trials and meta-analyses of Hartman procedure (HP) and primary anastomosis and proximal diversion (PAPD) have found surgical equipoise, questions regarding the relative performance of these treatments when applied broadly remain.

OBJECTIVE

To examine use of and outcomes after urgent sigmoid colectomy with end colostomy (ie, HP) vs PAPD in management of complicated diverticulitis.

DESIGN, SETTING, AND PARTICIPANTS

This retrospective cross-sectional study was a multicenter, population-based examination of inpatient hospitalizations, not including long-term rehabilitation facilities, using data from the 2014 to 2017 Nationwide Readmissions Database. It was performed from November 2020 to January 2021. Included patients were adults admitted with acute diverticulitis requiring HP or PAPD within 48 hours of admission.

EXPOSURES

Undergoing HP vs PAPD.

MAIN OUTCOMES AND MEASURES

Inverse probability treatment analysis was used to compare outcomes, including index mortality, composite complications (ie, neurologic, infectious, and cardiovascular complications), length of stay, and readmissions within 90 days.

RESULTS

During the study period, an estimated 1 072 395 adults (615 954 [57.4%] women; median [IQR] age, 64 [52-76] years) required nonelective hospitalization for acute colonic diverticulutus. A total of 34 126 patients required diversion, with 32 326 patients (94.7%) undergoing HP and 1800 patients (5.3%) undergoing PAPD within 48 hours of admission. Patients undergoing PAPD had a decreased median (IQR) age (60 [51-70] years vs 65 [54-74] years; P < .001) and decreased rates of end organ dysfunction (520 patients [28.9%] vs 11 514 patients [35.6%]; P < .001). In inverse probability treatment weight analysis, the odds of mortality (adjusted odds ratio [aOR], 0.63; 95% CI, 0.32-1.40), complications (aOR, 0.86; 95% CI, 0.66-1.13), and nonhome discharge (aOR 1.15; 95% CI, 0.83-1.60) were similar for PAPD compared with HP. Among 1772 patients who underwent PAPD and survived index hospitalization, there was an increased incidence of 90-day readmission compared with 30 851 patients who underwent HP and survived index hospitalization (393 patients [22.2%] vs 4384 patients [14.2%]; P < .001) with increased hazard of ostomy reversal (hazard ratio, 1.46; 95% CI, 1.08-1.99).

CONCLUSIONS AND RELEVANCE

This study found that the use of PAPD was associated with comparable index hospitalization outcomes vs use of HP, while readmission rate and ostomy risk were statistically significantly increased among patients who underwent PAPD compared with patients who underwent HP. These findings suggest that further delineation of criteria for appropriate application of PAPD in the urgent setting are warranted.

Anastomotic leak in patients with acute complicated diverticulitis undergoing primary anastomosis: risk factors and the role of diverting loop ileostomy

BACKGROUND

Recent data has suggested that primary anastomosis (PA), with or without a diverting loop ileostomy (DLI), is a safe option for the treatment of acute complicated diverticulitis. This study aimed to evaluate risk factors associated with anastomotic leak in patients who underwent a sigmoid colectomy with PA and to determine whether a DLI was protective against a clinically significant anastomotic leak.

METHODS

Patients with acute complicated diverticulitis who underwent a laparoscopic or open sigmoid colectomy with PA, with or without a DLI, were identified in the NSQIP PUF(2016-2017). The rates of anastomotic leak, receipt of DLI, and type of leak management were compared. Multivariate logistic regression was performed.

RESULTS

There were 497 patients identified. Seventy-nine(15.9%) patients had a DLI, while 418 (84.1%) did not. Twenty-six anastomotic leaks were identified (5.2%). On multivariate analysis, current smoking (OR 4.02; 95% CI 1.44-11.26) and chronic steroid use (OR 3.84; 95% CI 1.16-12.69) were significantly associated with an increased risk of leak. Of the 26 patients with anastomotic leaks, 5 (19.2%) had a DLI. There was no significant difference in the rate of leak between those with a DLI(5; 6.3%) and those without(21; 5.3%; p = 0.59). Patients who had a DLI were significantly less likely to experience an anastomotic leak requiring re-operation (p < 0.01).

CONCLUSIONS

Regardless of the presence of a DLI, chronic steroid use and smoking are associated with an increased risk of anastomotic leak in patients with acute complicated diverticulitis undergoing colectomy with PA. The presence of a diverting loop ileostomy is protective against re-operation.

Postoperative Complications Predict Long-term Outcome After Curative Resection for Perforated Colorectal Cancer

BACKGROUND/AIM

Perforation and postoperative complications have a negative effect on long-term outcomes in patients with colorectal cancer (CRC). The aim of this study was to evaluate the clinical factors with special reference to postoperative complications predicting the long-term outcome in those for whom curative resection for perforated CRC was performed.

PATIENTS AND METHODS

Patients who underwent curative resection for perforated CRC at stage II or III from April 2003 to March 2020 were included. Clinical factors were retrospectively analyzed.

RESULTS

Forty-four patients met the selection criteria. The 30-day mortality rate was 4.5% and the complication rate was 47.7%. Excluding 30-day mortality, five-year recurrence-free survival (RFS) and overall survival (OS) were 62.3% and 73.6%, respectively. Multivariate analysis showed that postoperative complications (p=0.005) and pT4 pathological factor (p=0.009) were independent prognostic factors for RFS. Only postoperative complications (p=0.023) were an independent prognostic factor for OS.

CONCLUSION

Postoperative complications were significantly associated with RFS and OS, and pT4 was associated with RFS. The prevention and management of postoperative adverse events may be important for perforated CRC.

The role of damage control surgery in the treatment of perforated colonic diverticulitis: a systematic review and meta-analysis

INTRODUCTION

Damage control surgery (DCS) is the classic approach to manage severe trauma and has recently also been considered an appropriate approach to the treatment of critically ill patients with severe intra-abdominal sepsis. The purpose of the present review is to evaluate the outcomes following DCS for Hinchey II-IV complicated acute diverticulitis (CAD).

METHODS

A comprehensive systematic search was undertaken to identify all randomized clinical trials (RCTs) and observational studies, irrespectively of their size, publication status, and language. Adults who have undergone DCS for CAD Hinchey II, III, or IV were included in this review. DCS is compared with the immediate and definitive surgical treatment in the form of HP, colonic resection, and primary anastomosis (RPA) with or without covering stoma or laparoscopic lavage. We searched the following electronic databases: PubMed MEDLINE, Scopus, and ISI Web of Knowledge. The protocol of this systematic review and meta-analysis was published on Prospero (CRD42020144953).

RESULTS

Nine studies with 318 patients, undergoing DCS, were included. The presence of septic shock at the presentation in the emergency department was heterogeneous, and the weighted mean rate of septic shock across the studies was shown to be 35.1% [95% CI 8.4 to 78.6%]. The majority of the patients had Hinchey III (68.3%) disease. The remainder had either Hinchey IV (28.9%) or Hinchey II (2.8%). Phase I is similarly described in most of the studies as lavage, limited resection with closed blind colonic ends. In a few studies, resection and anastomosis (9.1%) or suture of the perforation site (0.9%) were performed in phase I of DCS. In those patients who underwent DCS, the most common method of temporary abdominal closure (TAC) was the negative pressure wound therapy (NPWT) (97.8%). The RPA was performed in 62.1% [95% CI 40.8 to 83.3%] and the 22.7% [95% CI 15.1 to 30.3%]: 12.8% during phase I and 87.2% during phase III. A covering ileostomy was performed in 6.9% [95% CI 1.5 to 12.2%]. In patients with RPA, the overall leak was 7.3% [95% CI 4.3 to 10.4%] and the major anastomotic leaks were 4.7% [95% CI 2.0 to 7.4%]; the rate of postoperative mortality was estimated to be 9.2% [95% CI 6.0 to 12.4%].

CONCLUSIONS

The present meta-analysis revealed an approximately 62.1% weighted rate of achieving GI continuity with the DCS approach to generalized peritonitis in Hinchey III and IV with major leaks of 4.7% and overall mortality of 9.2%. Despite the promising results, we are aware of the limitations related to the significant heterogeneity of inclusion criteria. Importantly, the low rate of reported septic shock may point toward selection bias. Further studies are needed to evaluate the clinical advantages and cost-effectiveness of the DCS approach.

Management of rectal stump leak following emergency Hartmann’s procedure

We report on the management of three cases of rectal stump leak and sepsis following urgent Hartmann’s procedure for perforated sigmoid diverticulitis or large bowel obstruction. Two patients had significant risk factors for poor tissue healing. All patients developed features of sepsis and computer tomography scans demonstrated rectal stump leak with adjacent collections. All patients required reoperation for drainage and washout of abscess. An intraperitoneal catheter system was introduced together with drains in order to continue on the ward until tract was formed. There was no mortality and minimal morbidity. The key to management of rectal stump leak is the early and aggressive drainage of the associated collection and continued irrigation of the stump.

Evidence-based treatment strategies for acute diverticulitis

PURPOSE

Diverticular disease is a common acquired condition of the lower gastrointestinal tract that may be associated with significant morbidity. The term encompasses a spectrum of pathological processes with varying clinical manifestations. The purpose of this review was to update the reader on modern evidence-based treatment strategies for acute diverticulitis.

METHODS

A literature search of the PUBMED database was performed using the keywords 'diverticulosis', 'diverticular disease' and 'diverticulitis'. Only articles published in the English language were included.

RESULTS

Evidence-based treatment strategies for acute diverticulitis have evolved over time. Data have questioned the need for antibiotic therapy for Hinchey I disease and the role of percutaneous abscess drainage for Hinchey II. Clinical trials have demonstrated laparoscopic lavage is an appropriate option for select patients with Hinchey III disease and primary resection with anastomosis and defunctioning stoma may be considered in some cases of Hinchey IV disease.

CONCLUSION

Risk-adapted treatment strategies and operative decision-making for acute diverticulitis are increasingly based on a combination of patient and disease factors.

The impact of surgical subspecialization on patient outcomes following emergency colorectal resections in the north of England: a retrospective cohort study

AIM

Emergency colorectal surgery is associated with significant morbidity and mortality. Most general surgeons have a subspecialty, which forms the focus of their elective work, allowing development of specialist skill sets. The aim of this study was to assess the impact of consultant subspecialization on patient outcomes following emergency colorectal resections.

METHODS

Data were requested for all emergency admissions under a general surgeon between 1 January 2002 and 31 December 2016 within the north of England. These were acquired from individual Trusts following Caldicott approval. Data included demographics, diagnoses and any procedures undertaken. Patients were assigned to cohorts based on the subspecialist interest of the consultant they were under the care of. The primary outcome of interest was 30-day postoperative mortality. Categorical data were compared with the chi-squared test, and continuous data with the t test or ANOVA. A logistic regression model determined factors associated with 30-day in-hospital mortality.

RESULTS

Overall, 7648 emergency colorectal resections were performed with a 30-day postoperative mortality of 13.8%. This was significantly lower if the responsible consultant was a colorectal surgeon compared with other general surgery subspecialties (11.8% vs. 15.2%, P < 0.001). This was significant on univariate analysis (OR 0.75, P < 0.001); however, following multivariable adjustment, this was not statistically significant (P = 0.380). The colorectal specialists had a higher laparoscopy rate than their colleagues-9.8% versus 6.8% (P < 0.001). Stoma rates were also lower (46.9% vs. 51.0%, P = 0.001) and anastomosis rates higher (55.9% vs. 49.3%, P < 0.001) amongst colorectal surgeons.

CONCLUSION

These findings add to the growing body of evidence that patient outcomes may be improved by involving subspecialists in colorectal emergencies.

Drains, Germs, or Steel: Multidisciplinary Management of Acute Colonic Diverticulitis

The medical and surgical management of uncomplicated diverticulitis has changed over the last several years. Although immunocompetent patients or those without comorbidities can be treated with antibiotics as an outpatient, the efficacy of high-fiber intake or drugs such as mesalamine or rifaximin is not yet clearly established in the treatment of acute episodes and in the prevention of recurrences. On the other hand, the choice between antibiotic treatment and percutaneous drainage is not always obvious in diverticulitis complicated by abscess formation, especially for larger abscesses; although the results of studies comparing the two approaches remain controversial, surgery must be pursued for abscesses > 8 cm. For emergency surgery, the debate is still ongoing regarding laparoscopic lavage and surgical resection followed by primary anastomosis, since for both approaches the published reports are not in agreement regarding possible benefits. Therefore, these approaches are recommended only for selected patients under the care of experienced surgeons. Also, the contribution of elective surgery toward the overall approach has been revised; currently, it is reserved primarily for patients with a high risk of recurrence and whenever more conservative treatments were not effective.

Damage control surgery for the treatment of perforated acute colonic diverticulitis: A systematic review

BACKGROUND

Acute colonic diverticulitis (ACD) complications arise in approximately 8% to 35% patients and the most common ones are represented by phlegmon or abscess, followed by perforation, peritonitis, obstruction, and fistula. In accordance with current guidelines, patients affected by generalized peritonitis should undergo emergency surgery. However, decisions on whether and when to operate ACD patients remain a substantially debated topic while algorithm for the best treatment has not yet been determined. Damage control surgery (DCS) represents a well-established method in treating critically ill patients with traumatic abdomen injuries. At present, such surgical approach is also finding application in non-traumatic emergencies such as perforated ACD. Thanks to a thorough systematic review of the literature, we aimed at achieving deeper knowledge of both indications and short- and long-term outcomes related to DCS in perforated ACD.

METHODS

We performed a systematic literature review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyzes (PRISMA) guidelines. Pubmed/MEDLINE, Embase, Scopus, Cochrane Library, and Web of Science databases were used to search all related literature.

RESULTS

The 8 included articles covered an approximately 13 years study period (2006-2018), with a total 359 patient population. At presentation, most patients showed III and IV American Society of Anesthesiologists (ASA) score (81.6%) while having Hinchey III perforated ACD (69.9%). Most patients received a limited resection plus vacuum-assisted closure at first-look while about half entire population underwent primary resection anastomosis (PRA) at a second-look. Overall morbidity rate, 30-day mortality rate and overall mortality rate at follow-up were between 23% and 74%, 0% and 20%, 7% and 33%, respectively. Patients had a 100% definitive abdominal wall closure rate and a definitive stoma rate at follow-up ranging between 0% and 33%.

CONCLUSION

DCS application to ACD patients seems to offer good outcomes with a lower percentage of patients with definitive ostomy, if compared to Hartmann's procedure. However, correct definition of DCS eligible patients is paramount in avoiding overtreatment. In accordance to 2016 WSES (World Society of Emergency Surgery) Guidelines, DCS remains an effective surgical strategy in critically ill patients affected by sepsis/septic shock and hemodynamical unstability.

Management of perforated diverticulitis with generalized peritonitis. A multidisciplinary review and position paper

Perforated diverticulitis is an emergent clinical condition and its management is challenging and still debated. The aim of this position paper was to critically review the available evidence on the management of perforated diverticulitis and generalized peritonitis in order to provide evidence-based suggestions for a management strategy. Four Italian scientific societies (SICCR, SICUT, SIRM, AIGO), selected experts who identified 5 clinically relevant topics in the management of perforated diverticulitis with generalized peritonitis that would benefit from a multidisciplinary review. The following 5 issues were tackled: 1) Criteria to decide between conservative and surgical treatment in case of perforated diverticulitis with peritonitis; 2) Criteria or scoring system to choose the most appropriate surgical option when diffuse peritonitis is confirmed 3); The appropriate surgical procedure in hemodynamically stable or stabilized patients with diffuse peritonitis; 4) The appropriate surgical procedure for patients with generalized peritonitis and septic shock and 5) Optimal medical therapy in patients with generalized peritonitis from diverticular perforation before and after surgery. In perforated diverticulitis surgery is indicated in case of diffuse peritonitis or failure of conservative management and the decision to operate is not based on the presence of extraluminal air. If diffuse peritonitis is confirmed the choice of surgical technique is based on intraoperative findings and the presence or risk of severe septic shock. Further prognostic factors to consider are physiological derangement, age, comorbidities, and immune status. In hemodynamically stable patients, emergency laparoscopy has benefits over open surgery. Options include resection and anastomosis, Hartmann’s procedure or laparoscopic lavage. In generalized peritonitis with septic shock, an open surgical approach is preferred. Non-restorative resection and/or damage control surgery appear to be the only viable options, depending on the severity of hemodynamic instability. Multidisciplinary medical management should be applied with the main aims of controlling infection, relieving postoperative pain and preventing and/or treating postoperative ileus. In conclusion, the complexity and diversity of patients with diverticular perforation and diffuse peritonitis requires a personalized strategy, involving a thorough classification of physiological derangement, staging of intra-abdominal infection and choice of the most appropriate surgical procedure.

Prospectively Randomized Controlled Trial on Damage Control Surgery for Perforated Diverticulitis with Generalized Peritonitis

Introduction

Damage control surgery (DCS) with abdominal negative pressure therapy and delayed anastomosis creation in patients with perforated diverticulitis and generalized peritonitis was established at our Institution in 2006 and has been published. The concept was adopted in other hospitals and published as a case series. This is the first prospectively controlled randomized study comparing DCS and conventional treatment (Group C) in this setting.

Methods

All consecutive patients from 2013 to 2018 with indication for surgery were screened and randomized to Group DCS or Group C. The primary outcome was the rate of reconstructed bowel at discharge and at 6 month. Informed consent was obtained. The trial was approved by the local ethics committee and registered at CinicalTrials.gov: NCT04034407.

Results

A total of 56 patients were screened; 41 patients gave informed consent to participate and ultimately 21 patients (9 female) with intraoperatively confirmed Hinchey III (n = 14, 67%) or IV (n = 7, 33%), and a median (range) age of 66 (42–92), Mannheim Peritonitis Index of 25 (12–37) and Charlson Comorbidity Index of 3 (0–10) were intraoperatively randomized and treated as Group DCS (n = 13) or Group C (n = 8). Per protocol analysis: A primary anastomosis without ileostomy (PA) was performed in 92% (11/12) patients in Group DCS at the second-look operation, one patient died before second look, and one underwent a Hartmann procedure (HP). In Group C 63% (5/8) patients received a PA and 38% (3/8) patients a HP. Two patients in Group C, but none in Group DCS experienced anastomotic leakage (AI). ICU and hospital stay was median (range) 2 (1–10) and 17.5 (12–43) in DCS and 2 (1–62) and 22 (13–65) days in group C. In Group DCS 8% (1/12) patients was discharged with a stoma versus 57% (4/7) in Group C (p = 0.038, n.s., α = 0.025); one patient died before discharge. The odds ratio (95% confidence interval) for discharge with a stoma is 0.068 (0.005–0.861). Intent to treat analysis: A PA was performed in 90% (9/10) of patients randomized to DCS, one patient died before the second look, and one patient received a HP. In group C, 70% (7/10) were treated with PA and 30% (3/10) with HP. 29% (2/7) experienced AI treated with protective ileostomy. In group DCS, 9% (1/11) were discharged with a stoma versus 40% (4/10) in group C (p = 0.14, n.s.). The odds ratio for discharge with a stoma is 0.139 (0.012–1.608).

Conclusion

This is the first prospectively randomized controlled study showing that damage control surgery in perforated diverticulitis Hinchey III and IV enhances reconstruction of bowel continuity and can reduce the stoma rate at discharge.

Optimal Operative Strategy for Hinchey III Sigmoid Diverticulitis: A Decision Analysis

BACKGROUND

Operative approaches for Hinchey III diverticulitis include the Hartmann procedure, primary resection and anastomosis, and laparoscopic lavage. Several randomized controlled trials and meta-analyses have compared these approaches; however, results are conflicting and previous studies have not captured the complexity of balancing surgical risks and quality of life.

OBJECTIVE

This study aimed to determine the optimal operative strategy for patients with Hinchey III sigmoid diverticulitis.

DESIGN

We developed a Markov cohort model, incorporating perioperative morbidity/mortality, emergency and elective reoperations, and quality-of-life weights. We derived model parameters from systematic reviews and meta-analyses, where possible. We performed a second-order Monte Carlo probabilistic sensitivity analysis to account for joint uncertainty in model parameters.

SETTING

This study measured outcomes over patients' lifetime horizon.

PATIENTS

The base case was a simulated cohort of 65-year-old patients with Hinchey III diverticulitis. A scenario simulating a cohort of highly comorbid 80-year-old patients was also planned.

INTERVENTIONS

Hartmann procedure, primary resection and anastomosis (with or without diverting ileostomy), and laparoscopic lavage were performed.

MAIN OUTCOME MEASURES

Quality-adjusted life years were the primary outcome measured.

RESULTS

Following surgery for Hinchey III diverticulitis, 39.5% of patients who underwent the Hartmann procedure, 14.3% of patients who underwent laparoscopic lavage, and 16.7% of patients who underwent primary resection and anastomosis had a stoma at 12 months. After applying quality-of-life weights, primary resection and anastomosis was the optimal operative strategy, yielding 18.0 quality-adjusted life years; laparoscopic lavage and the Hartmann procedure yielded 9.6 and 13.7 fewer quality-adjusted life months. A scenario analysis for elderly, highly comorbid patients could not be performed because of a lack of high-quality evidence to inform model parameters.

LIMITATIONS

This model required assumptions about the long-term postoperative course of patients who underwent laparoscopic lavage because few long-term data for this group have been published.

CONCLUSIONS

Although the Hartmann procedure is widely used for Hinchey III diverticulitis, when considering both surgical risks and quality of life, both laparoscopic lavage and primary resection and anastomosis provide greater quality-adjusted life years for patients with Hinchey III diverticulitis, and primary resection and anastomosis appears to be the optimal approach. See Video Abstract at http://links.lww.com/DCR/B223. ESTRATEGIA OPERATIVA ÓPTIMA EN DIVERTICULITIS HINCHEY III DE SIGMOIDES: UN ANÁLISIS DE DECISION: Los enfoques quirúrgicos para la diverticulitis Hinchey III incluyen el procedimiento de Hartmann, la resección primaria y anastomosis, y el lavado laparoscópico. Varios ensayos controlados aleatorios y metanálisis han comparado estos enfoques; sin embargo, los resultados son contradictorios y los estudios previos no han captado la complejidad de equilibrar los riesgos quirúrgicos y la calidad de vida.Determinar la estrategia operativa óptima para pacientes con diverticulitis Hinchey III de sigmoides.Desarrollamos un modelo de cohorte de Markov, incorporando morbilidad / mortalidad perioperatoria, reoperaciones electivas y de emergencia, y pesos de calidad de vida. Derivamos los parámetros del modelo de revisiones sistemáticas y metaanálisis, cuando fue posible. Realizamos un análisis de sensibilidad probabilístico Monte Carlo de segundo orden para tener en cuenta la incertidumbre conjunta en los parámetros del modelo.Seguimiento de por vida.El caso base fue una cohorte simulada de pacientes de 65 años con diverticulitis de Hinchey III. También se planeó un escenario que simulaba una cohorte de pacientes de 80 años altamente comórbidos.Procedimiento de Hartmann, resección primaria y anastomosis (con o sin desviación de ileostomía) y lavado laparoscópico.Años de vida ajustados por calidad.Después de la cirugía para la diverticulitis de Hinchey III, el 39.5% de los pacientes que se sometieron al procedimiento de Hartmann, el 14.3% de los pacientes que se sometieron a un lavado laparoscópico, y el 16.7% de los pacientes que se sometieron a resección primaria y anastomosis tuvieron un estoma a los 12 meses. Después de aplicar el peso de la calidad de vida, la resección primaria y la anastomosis fueron la estrategia operativa óptima, que dio como resultado 18.0 años de vida ajustados en función de la calidad; el lavado laparoscópico y el procedimiento de Hartmann arrojaron 9.6 y 13.7 meses de vida ajustados en función de la calidad, respectivamente. No se pudo realizar un análisis de escenarios para pacientes de edad avanzada altamente comórbidos debido a la falta de evidencia de alta calidad para informar los parámetros del modelo.Este modelo requirió suposiciones sobre el curso postoperatorio a largo plazo de pacientes que se sometieron a lavado laparoscópico, ya que se han publicado pocos datos a largo plazo para este grupo.Aunque el procedimiento de Hartmann se usa ampliamente para la diverticulitis de Hinchey III, cuando se consideran tanto los riesgos quirúrgicos como la calidad de vida, tanto el lavado laparoscópico como la resección primaria y la anastomosis proporcionan una mayor calidad de años de vida ajustada para los pacientes con diverticulitis de Hinchey III y la resección primaria y anastomosis parece ser el enfoque óptimo. Consulte Video Resumen en http://links.lww.com/DCR/B223.

Laparoscopic Versus Open Emergent Sigmoid Resection for Perforated Diverticulitis

BACKGROUND

Potential advantages of laparoscopic sigmoidectomy for perforated diverticulitis are still under consideration. This study is designed to determine if emergent laparoscopic sigmoidectomy for perforated diverticulitis is associated with outcomes comparable to the traditional open approach.

METHODS

The American College of Surgeons-National-Surgical-Quality-Improvement-Program (ACS-NSQIP) database was queried for laparoscopic and open emergent sigmoidectomy cases for perforated diverticulitis from 2012 through 2017. Using propensity score weights, 30-day outcomes between laparoscopic and open approaches were compared in two ways: one with converted cases as a separate group and another with converted cases combined with the laparoscopic-completed group (intention-to-treat).

RESULTS

A total of 3756 cases met inclusion criteria-282 laparoscopic-completed, 175 laparoscopic-converted-to-open, and 3299 open. The laparoscopic-completed approach had significantly better outcomes than open and laparoscopic-converted cases. When combining laparoscopic-completed and laparoscopic-converted cases (intention-to-treat), the laparoscopic approach still had significantly fewer complications per patient, less unplanned intubation (p = 0.01), and acute renal failure (p = 0.005) than the open group. Laparoscopic groups had longer operating times and shorter hospital length of stay than the open group. Subgroup analysis comparing laparoscopic and open Hartmann's procedure and primary anastomosis with and without diverting stoma also showed favorable outcomes for the laparoscopic group.

CONCLUSIONS

Laparoscopic emergent sigmoid resection for perforated diverticulitis is associated with favorable outcomes compared to the open approach. Hartmann's procedure is still common and conversion rate is high. Training efforts that increase adoption of minimally invasive surgery and decrease conversion rates are justified. Randomized trials comparing laparoscopic and open approaches may allow further critical assessment of these findings.

Essential updates 2018/2019: Colorectal (benign): Recent updates (2018-2019) in the surgical treatment of benign colorectal diseases

This review outlines current topics on the surgical treatment of benign colorectal diseases, with a focus on inflammatory bowel disease (IBD) and diverticulitis. Treatment options for IBD and diverticulitis have evolved in the last few years as a result of medical advances in technology and new clinical trials. Therefore, treatment options and strategies need to be updated to provide optimal care for patients. The purpose of this review is to elucidate recent global trends and update the surgical treatment strategy for IBD and diverticulitis based on literature published in the past 2 years. Prevalence of IBD, including ulcerative colitis and Crohn's disease, has increased over the last few decades. During this period, many new medical therapies were introduced for the treatment of IBD, including biological therapy, immunomodulators, and leukocyte apheresis therapy. As a result, new surgical strategies for IBD are required. In order to improve surgical outcomes in IBD patients, the influence of preoperative treatment on postoperative complications needs to be considered. The incidence of diverticulitis is also increasing with lifestyle changes and increasing numbers of older people. For diverticulitis with perforation and generalized peritonitis, surgery is the gold standard. Elective surgery after conservative treatment of diverticulitis is also an option because of high recurrence rates. With an increase in diverticulitis, systematic strategies are essential for an appropriate approach to diverticulitis, taking into account various factors, including the patient's background.

The role of emergency laparoscopic colectomy for complicated sigmoid diverticulits: A systematic review and meta-analysis

BACKGROUND

Nowadays sigmoidectomy is recommended as "gold standard" treatment for generalized purulent or faecal peritonitis from sigmoid perforated diverticulitis. This systematic review and meta-analysis aimed to assess effectiveness and safety of laparoscopic access versus open sigmoidectomy in acute setting.

METHODS

A systematic literature search was performed for randomized controlled trials (RCTs) and non-RCTs published in PubMed, SCOPUS and Web of Science.

RESULTS

The search yielded four non-RCTs encompassing 436 patients undergoing either laparoscopic (181 patients, 41.51%) versus open sigmoid resection (255 patients, 58.49%). All studies reported ASA scores, but only four studies reported other severity scoring systems (Mannheim Peritonitis Index, P-POSSUM). Level of surgical expertise was reported in only one study. Laparoscopy improves slightly the rates of overall post-operative complications and post-operative hospital stay, respectively (RR 0.62, 95% CI 0.49 to 0.80 and MD -6.53, 95% CI -16.05 to 2.99). Laparoscopy did not seem to improve the other clinical outcomes: rate of Hartmann's vs anastomosis, operating time, reoperation rate and postoperative 30-day mortality.

CONCLUSION

In this review four prospective studies were included, over 20 + year period, including overall 400 + patients. This meta-analysis revealed significant advantages associated with a laparoscopic over open approach to emergency sigmoidectomy in acute diverticulitis in terms of postoperative complication rates, although no differences were found in other outcomes. The lack of hemodynamic data and reasons for operative approach hamper interpretation of the data suggesting that patients undergoing open surgery were sicker and these results must be considered with extreme caution and this hypothesis requires confirmation by future prospective randomised controlled trials.

Differences between computed tomoghaphy and surgical findings in acute complicated diverticulitis

BACKGROUND/OBJECTIVE

A preoperative reliable classification system between clinical and computed tomography (CT) findings to better plan surgery in acute complicated diverticulitis (ACD) is lacking. We studied the inter-observer agreement of CT scan data and their concordance with the preoperative clinical findings and the adherence with the intraoperative status using a new classification of diverticular disease (CDD).

METHODS

152 patients operated on for acute complicated diverticulitis (ACD) were retrospectively enrolled. All patients were studied with CT scan within 24 h before surgery and CT images were blinded reanalyzed by 2 couples of radiologists (A/B). Kappa value evaluated the inter-observer agreement between radiologists and the concordance between CDD, preoperative clinical findings and findings at operation. Univariate and multivariate analysis were used to evaluate the predicting values of CT classification and CDD stage at surgery on postoperative outcomes.

RESULTS

Overall inter-observer agreement for the CDD was high, with a kappa value of 0.905 (95% CI = 0.850-0.960) for observers A and B, while the concordance between radiological and surgical findings was weak (kappa values = 0.213 and 0,248, respectively and 95% CI = 0.106 to 0.319 and 95% CI = 0.142 to 0.355, respectively). When overall morbidity, mortality and the need of a terminal colostomy were considered as main endpoints no concordance was observed between surgical and radiological findings and the CDD (P=NS).

CONCLUSIONS

The need for a more accurate classification of ACD, able to better stage this emergency, and to provide surgeons with reliable information for the best treatment is advocated.

[Evidence for standard surgical procedures: appendicitis, diverticulitis and cholecystitis]

BACKGROUND

Acute appendicitis, cholecystitis and sigmoid diverticulitis are the most common inflammatory visceral surgical emergencies. According to the principles of evidence-based medicine, treatment methods and surgical indications should be constantly questioned and validated by high-quality clinical studies.

OBJECTIVE

To identify and classify the current evidence on surgical treatment of acute appendicitis, cholecystitis and sigmoid diverticulitis.

MATERIAL AND METHODS

Targeted literature search in Medline, the Cochrane Library and study registers (clinicaltrials.gov).

RESULTS AND CONCLUSION

The indications for surgery are changing due to increasing numbers of high-quality clinical studies. Conservative treatment seems to be feasible in the early stages. In contrast, many surgical steps have not yet been sufficiently validated. Furthermore, there is a great need for high-quality, prospective randomized clinical trials, so that promotion of studies and the study culture in surgery should continue to be of greatest interest.

Increasing primary anastomosis rate over time for the operative management of acute diverticulitis

BACKGROUND

Over the past two decades, there has been mounting evidence that primary anastomosis (PA) is a safe alternative to Hartmann's procedure (HP) in acute diverticulitis. In addition, specialized colorectal surgeons are more likely to perform PA. This study aimed to analyse if this evidence has led to an increase in the rate of PA in a major tertiary institution over time.

METHODS

A retrospective observational study of patients requiring operative management of acute diverticulitis from 1 January 2001 to 31 December 2015 at a tertiary teaching hospital.

RESULTS

One hundred and eighteen patients underwent surgery for acute diverticulitis. Patients who failed initial conservative management were more likely to have PA (43% versus 21%, P = 0.044). There was no difference in medical or surgical complications, readmission rate or mortality between patients who had a PA compared with HP. Patients were more likely to have a PA if a colorectal surgeon was operating compared with a colorectal surgery fellow or general surgeon (36% versus 19% versus 10%, P = 0.039). In patients with modified Hinchey 0-2, there was an increased PA rate within the study period, 21%, 43%, 63% to 57% from the first to the fourth quartile of patients (P = 0.038).

CONCLUSIONS

The mounting evidence for the safety of performing PA has led to an increase in the PA rates for acute diverticulitis. Patients who were operated by a colorectal surgeon were more likely to have a PA. The morbidity and mortality were similar in patients who had PA compared with HP.

Hartmann's procedure versus sigmoidectomy with primary anastomosis for perforated diverticulitis with purulent or faecal peritonitis (LADIES): a multicentre, parallel-group, randomised, open-label, superiority trial

BACKGROUND

Previous studies have suggested that sigmoidectomy with primary anastomosis is superior to Hartmann's procedure. The likelihood of stoma reversal after primary anastomosis has been reported to be higher and reversal seems to be associated with lower morbidity and mortality. Although promising, results from these previous studies remain uncertain because of potential selection bias. Therefore, this study aimed to assess outcomes after Hartmann's procedure versus sigmoidectomy with primary anastomosis, with or without defunctioning ileostomy, for perforated diverticulitis with purulent or faecal peritonitis (Hinchey III or IV disease) in a randomised trial.

METHODS

A multicentre, randomised, open-label, superiority trial was done in eight academic hospitals and 34 teaching hospitals in Belgium, Italy, and the Netherlands. Patients aged between 18 and 85 years who presented with clinical signs of general peritonitis and suspected perforated diverticulitis were eligible for inclusion if plain abdominal radiography or CT scan showed diffuse free air or fluid. Patients with Hinchey I or II diverticulitis were not eligible for inclusion. Patients were allocated (1:1) to Hartmann's procedure or sigmoidectomy with primary anastomosis, with or without defunctioning ileostomy. Patients were enrolled by the surgeon or surgical resident involved, and secure online randomisation software was used in the operating room or by the trial coordinator on the phone. Random and concealed block sizes of two, four, or six were used, and randomisation was stratified by age (<60 and ≥60 years). The primary endpoint was 12-month stoma-free survival. Patients were analysed according to a modified intention-to-treat principle. The trial is registered with the Netherlands Trial Register, number NTR2037, and ClinicalTrials.gov, number NCT01317485.

FINDINGS

Between July 1, 2010, and Feb 22, 2013, and June 9, 2013, and trial termination on June 3, 2016, 133 patients (93 with Hinchey III disease and 40 with Hinchey IV disease) were randomly assigned to Hartmann's procedure (68 patients) or primary anastomosis (65 patients). Two patients in the Hartmann's group were excluded, as was one in the primary anastomosis group; the modified intention-to-treat population therefore consisted of 66 patients in the Hartmann's procedure group (46 with Hinchey III disease, 20 with Hinchey IV disease) and 64 in the primary anastomosis group (46 with Hinchey III disease, 18 with Hinchey IV disease). In 17 (27%) of 64 patients assigned to primary anastomosis, no stoma was constructed. 12-month stoma-free survival was significantly better for patients undergoing primary anastomosis compared with Hartmann's procedure (94·6% [95% CI 88·7-100] vs 71·7% [95% CI 60·1-83·3], hazard ratio 2·79 [95% CI 1·86-4·18]; log-rank p<0·0001). There were no significant differences in short-term morbidity and mortality after the index procedure for Hartmann's procedure compared with primary anastomosis (morbidity: 29 [44%] of 66 patients vs 25 [39%] of 64, p=0·60; mortality: two [3%] vs four [6%], p=0·44).

INTERPRETATION

In haemodynamically stable, immunocompetent patients younger than 85 years, primary anastomosis is preferable to Hartmann's procedure as a treatment for perforated diverticulitis (Hinchey III or Hinchey IV disease).

FUNDING

Netherlands Organisation for Health Research and Development.

Perforated diverticulitis in the North of England: trends in patient outcomes, management approach and the influence of subspecialisation

INTRODUCTION

In recent years, several management options have been used in the management of perforated diverticulitis, ranging from conservative treatment to laparotomy. General surgery has also become increasingly specialised over time. This retrospective cohort study investigated changes in patient outcomes following perforated diverticulitis, management approach and the influence of consultant subspecialisation over time.

MATERIALS AND METHODS

Data was collected on patients admitted with perforated diverticulitis in the North of England between 2002 and 2016. Subspecialisation was categorised as colorectal or other general subspecialties. The primary outcome of interest was overall 30-day mortality; secondary outcomes included surgical approach, stoma and anastomosis rate.

RESULTS

A total of 3394 cases of perforated diverticulitis were analysed (colorectal, n = 1290 and other subspecialists, n = 2104) with a 30-day mortality of 11.6%. There was a significant reduction in mortality over time (2002-2006: 18.6% to 2012-2016: 6.8, P < 0.001).There was a significant reduction in open surgery (60% to 25.3%, P < 0.001) with increased conservative management (37.4% to 63.5%, P < 0.001), laparoscopic resection (0.1% to 4.9%, P < 0.001) and laparoscopic washout (0.1% to 5.7%, P < 0.001).Patients admitted under colorectal surgeons had lower mortality than other subspecialists (9.9% vs 12.4%, P = 0.027), which remained significant following multivariate adjustment (hazard ratio 1.44, P = 0.039). These patients had fewer stomas (13.9% vs. 21.0%, P = 0.001) and higher anastomosis rates (22.1% vs 15.8%, P = 0.004).

CONCLUSION

This study demonstrated considerable improvements in the management of perforated diverticulitis alongside the positive impact of subspecialisation on patient outcomes.

Damage control surgery for perforated diverticulitis with diffuse peritonitis: saves lives and reduces ostomy

Introduction

Over the last decade, damage control surgery (DCS) has been emerging as a feasible alternative for the management of patients with abdominal infection and sepsis. So far, there is no consensus about the role of DCS for acute perforated diverticulitis. In this study, we present the outcome of a multi-institutional series of patients presenting with Hinchey's grade III and IV diverticulitis managed by DCS.

Methods

All the participating centers were tertiary referral hospitals. A total of 34 patients with perforated diverticulitis treated with DCS during the period 2011–2017 were included in the study. During the first laparotomy, a limited resection of the diseased segment was performed followed by lavage and use of negative pressure wound therapy (NPWT). After 24/48 h of resuscitation, patients returned to the operating room for a second look. Mortality, morbidity, and restoration of bowel continuity were the primary outcomes of the study.

Results

There were 15 males (44%) and 19 females (56%) with a mean age of 66.9 years (SD ± 12.7). Mean BMI was 28.42 kg/m² (SD ± 3.33). Thirteen cases (38%) were Wasvary’s modified Hinchey's stage III, and 21 cases (62%) Hinchey's stage IV. Mean Mannheim Peritonitis Index (MPI) was 25.12 (SD ± 6.28). In 22 patients (65%), ASA score was ≥ grade III. Twenty-four patients (71%) had restoration of bowel continuity, while 10 (29%) patients had an end colostomy (Hartmann’s procedure). Three of these patients received a temporary loop ileostomy. One patient had an anastomotic leak. Mortality rate was 12%. Mean length of hospital stay was 21.9 days. At multivariate analysis, male gender (p = 0.010) and MPI (p = 0.034) correlated with a high percentage of Hartmann’s procedures.

Conclusion

DCS is a feasible procedure for patients with generalized peritonitis secondary to perforated diverticulitis, and it appears to be related to a higher rate of bowel reconstruction. Due to the open abdomen, stay in ICU with prolonged mechanical ventilation is required, but these aggressive measures may be needed by most patients undergoing surgery for perforated diverticulitis, whatever the procedure is done.

Clinical signs of retroperitoneal abscess from colonic perforation: Two case reports and literature review

RATIONALE

Retroperitoneal colonic perforation is a rare cause of retroperitoneal abscess. It presents, more frequently in frail elderly patients, with heterogeneous signs and symptoms which hamper the clinical diagnosis. Subcutaneous emphysema with pneumomediastinum and iliopsoas muscle abscess are unusual signs. Colonic retroperitoneal perforation may be consequent to diverticulitis or locally advanced colon cancer. Due to the anatomy of the retroperitoneal space and different physiopathology, diverticular perforation may present with air and pus collection; on the other hand perforated colon cancer may cause groin mass and psoas abscess. We reported 2 cases of colonic retroperitoneal perforation from diverticulitis and locally advanced colon cancer, respectively. Aim of this report is to improve differential diagnosis based on clinical signs.

PATIENTS' CONCERNS

A 71-year-old man presented with pain in his left side, fatigue, fever, nausea, massive subcutaneous emphysema of the neck, and Blumberg sign in the left iliac fossa. A 67-year-old man presented with abdominal pain, sub-occlusion, left groin mass, left groin, and lower limb pain during walking, negative Blumberg sign.

DIAGNOSIS

In the first patient the computerized tomography revealed pneumoperitoneum, gas in the mesosigma, pneumomediastinum, wall thickening of the descending colon, and retroperitoneal collection from diverticular perforation. In the second patient abdominal CT scan found thickening of the sigmoid colon adherent to the iliopsoas and fluid collection.

INTERVENTIONS

In the first patient, a left hemicolectomy extending to the transverse colon, followed by a toilette and debridement of the retroperitoneum were performed. In the second patient, tumor of descending colon perforated in the retroperitoneum with iliopsoas abscess was treated with left hemicolectomy and a drainage of the abscess.

OUTCOMES

The first patient underwent right colectomy with ileostomy in the 7 postoperative day for large bowel necrosis. He died of sepsis 2 days after. The second patient had regular postoperative and he is still alive.

LESSONS

The spread of retroperitoneal abscess in complicated colonic diverticulitis is different from that in advanced colonic cancer. The former can present with a subcutaneous emphysema, the latter with a groin mass. Hence a thorough clinical examination and radiological studies are needed to diagnose these conditions.