Severe Intra-abdominal Sepsis Research Articles

A descriptive analysis of skin-only closure and Bogota bag techniques for achieving complete fascial closure in damage control abdominal surgery

BackgroundTemporary abdominal closure (TAC) techniques are essential in managing open abdomen cases, particularly in damage control surgery. Skin-only closure (SC) and Bogota bag closure (BBC) are commonly used methods for TAC, but their comparative effectiveness in achieving primary fascial closure (PFC) remains unclear. The objective of this study was to evaluate the rates of PFC between patients undergoing SC and BBC techniques for TAC in peritonitis or abdominal trauma cases at a tertiary care hospital.MethodsA retrospective cross-sectional study was conducted at the Surgical A Unit of Hayatabad Medical Complex, Peshawar, from January 2022 to July 2023. Approval was obtained from the institutional review board, and patient consent was secured for data use. Patients undergoing temporary abdominal closure using either skin-only or Bogota bag techniques were included. Exclusions comprised patients younger than 15 or older than 75 years, those with multiple abdominal wall incisions, and those with prior abdominal surgeries. Data analysis utilized SPSS version 25. The study aimed to assess outcomes following damage control surgery, focusing on primary fascial closure rates and associated factors. Closure techniques (skin-only and Bogota bag) were chosen based on institutional protocols and clinical context. Indications for damage control surgery (DCS) included traumatic and non-traumatic emergencies. Intra-abdominal pressure (IAP) was measured using standardized methods. Patients were divided into SC and BBC groups for comparison. Criteria for reoperation and primary fascial closure were established, with timing and technique determined based on clinical assessment and multidisciplinary team collaboration. The decision to leave patients open during the index operation followed damage control surgery principles.ResultsA total of 193 patients were included in this study, with 59.0% undergoing skin-only closure (SC) and 41.0% receiving Bogota bag closure (BBC). Patients exhibited similar demographic characteristics across cohorts, with a majority being male (73.1%) and experiencing acute abdomen of non-traumatic origin (58.0%). Among the reasons for leaving the abdomen open, severe intra-abdominal sepsis affected 51.3% of patients, while 42.0% experienced hemodynamic instability. Patients who received SC had significantly higher rates of primary fascial closure (PFC) compared to BBC (85.1% vs. 65.8%, p = 0.04), with lower rates of fascial dehiscence (1.7% vs. 7.6%, p = 0.052) and wound infections (p = 0.010). Multivariate regression analysis showed SC was associated with a higher likelihood of achieving PFC compared to BBC (adjusted OR = 1.7, 95% CI: 1.3–3.8, p < 0.05).ConclusionIn patients with peritonitis or abdominal trauma, SC demonstrated higher rates of PFC compared to BBC for TAC in our study population. However, further studies are warranted to validate these results and explore the long-term outcomes associated with different TAC techniques.

Damage control surgery by transverse colon perforation: case report

Obstruction and perforation due to colorectal cancer represent challenging matters in terms of diagnosis, life-saving strategies, obstruction resolution and oncologic challenge. The outcomes of these different resections when performed in acute clinical situations remain substantially unexplored. Case report: 65 years old diabetic and obese female, with abdominal pain accompanied by the absence of channeling of flatus and bowel movements as well as countless vomiting of low intestinal content, wich is why its refer to the emergency of the IAHULA, Merida Venezuela. Physical examination: tachycardic, tachypneic, with, HR: 130 TA: 90/60, FR: 28m oxygen saturation 89%. Abdomen distended, diminished hydro aerial sounds, painful on palpation, with voluntary muscular defense. An emergency laparotomy show: general fecal peritonitis, perforations of the transverse colon, stenosing sigmoid tumor. For this reason, phase 1 damage control surgery was performed by transversectomy + placement of proximal and distal threads, requiring phase II in an intensive care unit, ventilatory support and vasopressor drugs. Phase III was planned in 48 to 72 hours for probable complete left colectomy, however, the patient died after 18 hours of postoperative. Discussion: damage control surgery has been considered an appropriate approach to the treatment of critically ill patients with severe intra-abdominal sepsis. Conclusion: Abdominal sepsis and a septic shock are both possible as a critical scenarios in patients with perforation and obstruction of the colon secondary tumors and carcinomas, for that reason it is important to know which patient can be selected to a damage control surgery in orden to improve the morbimortality.

Interleukin response in patients treated with abbreviated laparotomy for severe intraabdominal sepsis

Background: Pro- and anti-inflammatory cytokines play an important role in abdominal sepsis. Studies suggest that the anti-inflammatory response is more detrimental to the patient with abdominal sepsis than the initial pro-inflammatory response. We therefore studied the serum levels of pro-inflammatory and anti-inflammatory interleukins in patients with abdominal sepsis treated by abbreviated laparotomy.&#x0D; Methods: We performed a prospective study of 42 patients treated by abbreviated laparotomy. The patients were divided into a high-risk (more than two procedures before abdominal closure) group (24 patients) and a low-risk (two or fewer procedures) group (18 patients). The differences and correlations between the serum levels of pro-inflammatory and anti-inflammatory cytokines on days one and ten after the initial procedure were assessed.&#x0D; Results: The mortality was significantly higher in the high-risk group (41.7% vs. 5.6% in the low-risk group; p = 0.012). IL-10 serum levels were significantly higher in the high-risk group (22.5 pg/mL (IQR 5.25)) compared to the low-risk group (12.15 pg/mL (IQR 6.725)) (p = 0.012). Age was significantly correlated with mortality (p = 0.007). The logarithmic value of IL-10 serum levels on day one (HR: 2.5; 95% CI: 1.109–5.638; p = 0.027) and the IL-10 cut-off value (HR: 3.816; 95% CI: 1.047–13.910; p = 0.042) were significantly correlated with worse disease course in multivariate analysis.&#x0D; Conclusions: Patients who exhibit a greater anti-inflammatory response on day one are at increased risk of a protracted course and higher mortality. IL-10 serum levels on day one after surgery predict a worse disease course in these patients and could be a useful marker of abdominal sepsis.

Pseudomembranous colitis in patients with COVID-19 (review)

AIM: to estimate the features of pseudomembranous colitis in patients with COVID-19, diagnostics, conservative treatment and surgery for complications.PATIENTS AND METHODS: a retrospective analysis of 396 patients with pseudomembranous colitis (PMC) in patients with new coronavirus infection was carried out for the period from March 2020 to November 2021. Among them there were 156 (39.3%) males, females — 240 (60.6%), moderate and severe forms of COVID-19 occurred in 97.48%.The diagnosis of PMC was established due to clinical picture, laboratory, instrumental methods (feces on Cl. difficile, colonoscopy, CT, US, laparoscopy).RESULTS: the PMC rate in COVID-19 was 1.17%. All patients received antibiotics, 2 or 3 antibiotics — 44.6%, glucocorticoids were received by all patients. At 82.8%, PMC developed during the peak of COVID-19. To clarify the PMC, CT was performed in 33.8% of patients, colonoscopy — 33.08%, laparoscopy — in 37.1% (to exclude bowel perforation, peritonitis). Conservative treatment was effective in 88.8%, 76 (19.1%) patients had indications for surgery (perforation, peritonitis, toxic megacolon). Most often, with peritonitis without clear intraoperative confirmation of perforation, laparoscopic lavage of the abdominal cavity was performed (60 patients — 78.9%, mortality — 15.0%), colon resection (n = 6 (7.9%), mortality — 66.6%), ileo- or colostomy (n = 8 (10.5%), mortality — 37.5%), colectomy (n = 2 (2.6%), mortality — 50.0%). The overall postoperative mortality rate was 22.4%, the incidence of surgical complications was 43.4%. In addition, in the postoperative period, pneumonia was in 76.3%, thrombosis and pulmonary embolism in 22.3% of patients. In general, the overall mortality in our patients with PMC was 11.4%, with conservative treatment — 8.8%.CONCLUSION: pseudomembranous colitis is a severe, life-threatening complication of COVID-19. In the overwhelming majority of patients, conservative therapy was effective, but almost 1/5 of patients developed indications for surgery, the latter being accompanied by high mortality and a high morbidity rate. Progress in the treatment of PMC, apparently, is associated with early diagnosis, intensive conservative therapy, and in the case of indications for surgery, their implementation before decompensation of the patient’s condition and the development of severe intra-abdominal complications and sepsis.

Damage control surgery for perforated retroperitoneal diverticulitis causing a pyomyositis

Damage Control Surgery (DCS) is an appropriate approach to the treatment of critically ill patients with severe intraabdominal sepsis. DCS is not a surgical manoeuvre but an alternative treatment mode to primary definitive surgical care. Diverticular perforation is a common complication of diverticulitis and can lead to the creation of abscesses. A retroperitoneal abscess from colonic perforation is an unusual event, that can lead to misdiagnosis due to absence of peritoneal irritation. It requires a high index of clinical suspicion and radiological studies are needed. We present the case of a septic shock due to a perforated retroperitoneal diverticulitis also causing a pyomyositis. A DCS was performed, consisting in a sigmoidectomy, drainage of retroperitoneal infection, necrotizing pyomyositis debridement and leaving a temporary abdominal closure with the assistance of negativepressure therapy, to control the focus of the infection and in a second stage by performing a definitive surgery.

2023 updates on the closed or open after-source control for severe complicated intraabdominal sepsis (COOL) trial

2023 updates on the closed or open after-source control for severe complicated intraabdominal sepsis (COOL) trial

Rate of stoma formation following damage-control surgery for severe intra-abdominal sepsis: a single-centre consecutive case series.

BackgroundSevere intra-abdominal sepsis (IAS) is associated with high mortality and stoma rates. A two-stage approach with initial damage-control surgery (DCS) and subsequent reconstruction might decrease stoma and mortality rates but requires standardization.MethodsA standardized two-stage damage-control algorithm for IAS was implemented in April 2016 and applied systematically.ResultsSome 203 consecutive patients (median age 70 years, 62 per cent ASA score greater than 3) had DCS for severe IAS. Median operation time was 82 minutes, 60 per cent performed during night-time. Median intraoperative noradrenaline doses were 20 (i.q.r. 26) µg/min and blood gas analysis (ABG) was abnormal (metabolic acidosis) in 90 per cent of patients. The second-stage operation allowed definitive surgery in 76 per cent of patients, 24 per cent had up to four re-DCSs until definitive surgery. The in-hospital mortality rate was 26 per cent. At hospital discharge, 65 per cent of patients were stoma free. Risk factors for in-hospital death were noradrenaline (odds ratio 4.25 (95 per cent c.i. 1.72 to 12.83)), abnormal ABG (pH: odds ratio 2.72 (1.24 to 6.65); lactate: odds ratio 6.77 (3.20 to 15.78)), male gender (odds ratio 2.40 (1.24 to 4.85)), ASA score greater than 3 (odds ratio 5.75 (2.58 to 14.68)), mesenteric ischaemia (odds ratio 3.27 (1.71 to 6.46)) and type of resection (odds ratio 2.95 (1.24 to 8.21)). Risk factors for stoma at discharge were ASA score greater than 3 (odds ratio 2.76 (95 per cent c.i. 1.38 to 5.73)), type of resection (odds ratio 30.91 (6.29 to 559.3)) and longer operation time (odds ratio 2.441 (1.22 to 5.06)).ConclusionInitial DCS followed by secondary reconstruction of bowel continuity for IAS within 48 hours in a tertiary teaching hospital was feasible and safe, following a clear algorithm.

SP3.2.3 The open abdomen is associated with increased morbidity and mortality after emergency laparotomy: a retrospective cohort study

Abstract Aims The open abdomen following emergency laparotomy for peritoneal contamination is becoming an increasingly popular method of managing severe intra-abdominal sepsis. However, this approach has been associated with increased morbidity and mortality. The aim of this study is to compare patient populations and post-operative outcomes from patients undergoing primary closure or those managed with an open abdomen after emergency laparotomy. Methods A retrospective case note review was undertaken of all patients recorded on the NELA database over a five-year period at a district general hospital. Patients with no intra-abdominal contamination or who were palliated peri-operatively were excluded. Data collected included P-possum morbidity and mortality, post-operative complications (Clavien-Dindo), length of stay and in-hospital mortality. Results 811 NELA entries were reviewed; 313 were included with 79% (n = 248) undergoing primary closure. Cohorts were similar in age and sex. P-possum morbidity and mortality scores were significantly higher in the open abdomen group (89% vs 79%, p = 0.0003; 38% vs 24%, p = 0.0003, respectively). Of the outcome variables, significant complications (34% vs 11%, p = 0.001), length of stay (31 vs 18 days, p = 0.0001) and mortality (11% vs 4%, p = 0.001) were significantly higher in the open compared to closed abdomen group. Only 10% of patients undergoing primary closure required further surgery. Conclusions This study highlights that the open abdomen is used in higher risk patients, with significantly poorer outcomes. This approach, which confers a significant physiological burden requiring further intervention should be used with caution in selected cases.

Topical Treatment of the Spleen with NaHCO3 Improves the Survival of Rats with Severe Intra-Abdominal Sepsis

Topical Treatment of the Spleen with NaHCO3 Improves the Survival of Rats with Severe Intra-Abdominal Sepsis

Topical Neck Cooling Prolongs Survival of Rats with Intra-Abdominal Feculent Sepsis by Activation of the Vagus Nerve.

Global hypothermia prolongs survival in rats with intraabdominal feculent sepsis by inhibiting inflammatory responses. We hypothesized that topical neck cooling (TNC) has similar benefits. Septic shock was induced by cecal ligation and incision (CLI) in Sprague Dawley rats. Rats were randomized to sham laparotomy, control with CLI, CLI with TNC, or vagotomy at the gastroesophageal junction before CLI and TNC. Two more groups underwent peritoneal washout with and without TNC two hours after CLI. TNC significantly lowered neck skin temperature (16.7 ± 1.4 vs. 30.5 ± 0.6 °C, p < 0.05) while maintaining core body normothermia. TNC rats recovered from anesthesia 70 min earlier than the control (p < 0.05). Three hours following CLI, the control and vagotomy with TNC groups had significantly more splenic contraction, fewer circulating leukocytes and higher plasma IL-1β, IL-10 and TNF-α levels than TNC rats (p < 0.05). TNC prolonged survival duration after CLI by a median of four hours vs. control (p < 0.05), but no benefit was seen if vagotomy preceded TNC. Peritoneal washout alone increased survival by 3 h (9.2 (7.8–10.5) h). Survival duration increased dramatically with TNC preceding washout, to a 56% survival rate (>10 days). TNC significantly prolonged the survival of rats with severe intraabdominal sepsis by inhibiting systemic proinflammatory responses by activating vagal anti-inflammatory pathways.

Pulsed Ultrasound of the Spleen Prolongs Survival of Rats With Severe Intra-abdominal Sepsis

BackgroundThe spleen is an important contributor to the uncontrolled, excessive release of proinflammatory signals during sepsis that leads to the development of tissue injury and diffuse end-organ dysfunction. Therapeutic pulsed ultrasound (pUS) has been shown to inhibit splenic leukocyte release and reduce cytokine production in other inflammatory disease processes. We hypothesized that pUS treatment inhibits spleen-derived inflammatory responses and increases survival duration in rats with severe intra-abdominal sepsis leading to septic shock. Materials and methodsRats with intra-abdominal sepsis, induced by cecal ligation and incision, underwent abdominal washout, intra-peritoneal administration of cefazolin, and then either no further treatment (control), splenectomy, or pUS of the spleen. Animals were observed for the primary endpoint of survival duration. ResultsSurvival curves were significantly different for all groups (P < 0.01). Median survival increased from 9.5 h in control rats to 19.8 h in pUS rats and 35.0 h in splenectomy rats (P < 0.01). At 4 h after cecal ligation and incision, the pUS group had decreased splenic contraction and leukocyte count (P = 0.03) compared with control, indicating reduced exodus of splenic leukocytes. In addition, elevation in plasma TNF-α and MCP-1 was significantly attenuated in the pUS group (P < 0.05 versus control). Splenic β2 adrenergic receptor levels and phosphorylated Akt were significantly more elevated in the pUS group (P < 0.01 versus control). ConclusionspUS significantly prolonged the survival duration of rats with severe intra-abdominal sepsis. This treatment may be an effective, noninvasive therapy that dampens detrimental immune responses during septic shock by activating β2 adrenergic receptor–Akt phosphorylation in the cholinergic anti-inflammatory pathway.

Open abdomen closure methods for severe abdominal sepsis: a retrospective cohort study.

The open abdomen (OA) procedure as part of damage control surgery represents a significant surgical advance in severe intra-abdominal infections. Major techniques used for OA are negative pressure wound therapy (NPWT) and non-NPWT. The aim of this retrospective study is to evaluate the effects of different abdominal closure methods and their outcomes in patients presenting with abdominal sepsis treated with OA. We retrospectively analyzed clinical outcomes of patients affected by severe intra-abdominal sepsis treated with OA. Demographic features, mortality prediction score, abdominal closure methods, length of hospital stay, complications and mortality rates of patients were determined and compared. This study included 106 patients, of whom 77 underwent OA with NPWT and 29 with non-NPWT. OA duration was longer in NPWT patients (p = 0.007). In-hospital mortality rates in NPWT and in non-NPWT patients were 40.3% and 51.7%, respectively (p = 0.126), with an overall 30-day mortality rate of 18.2% and 51.7%, respectively (p = 0.0002). After emergency colorectal surgery, patients who underwent OA with NPWT had a lower rate of colostomy (p = 0.025). NPWT is the best temporary abdominal closure technique to decrease mortality and colostomy rates in patients managed with OA for severe intra-abdominal infections.

Protocol for a parallel economic evaluation of a trial comparing two surgical strategies in severe complicated intra-abdominal sepsis: the COOL-cost study

BackgroundThe risk of death in severe complicated intra-abdominal sepsis (SCIAS) remains high despite decades of surgical and antimicrobial research. New management strategies are required to improve outcomes. The Closed Or Open after Laparotomy (COOL) trial investigates an open-abdomen (OA) approach with active negative pressure peritoneal therapy. This therapy is hypothesized to better manage peritoneal bacterial contamination, drain inflammatory ascites, and reduce the risk of intra-abdominal hypertension leading to improved survival and decreased complications. The total costs and cost-effectiveness of this therapy (as compared with standard fascial closure) are unknown.MethodsWe propose a parallel cost-utility analysis of this intervention to be conducted alongside the 1-year trial, extrapolating beyond that using decision analysis. Using resource use metrics (e.g., length of stay, re-admissions) from patients at all study sites and microcosting data from patients enrolled in Calgary, Alberta, the mean cost difference between treatment arms will be established from a publicly-funded health care payer perspective. Quality of life will be measured at 6 months and 1 year postoperatively with the Euroqol EQ-5D-5 L and SF-36 surveys. A within-trial analysis will establish cost and utility at 1 year, using a bootstrapping approach to provide confidence intervals around an estimated incremental cost-effectiveness ratio. If neither operative strategy is economically dominant, Markov modeling will be used to extrapolate the cost per quality-adjusted life years gained to 2-, 5-, 10-year, and lifetime horizons. Future costs and benefits will be discounted at 1.5% per annum. A cost-effectiveness acceptability curve will be generated using Monte Carlo simulation. If all trial outcomes are similar, the primary analysis will default to a cost-minimization approach. Subgroup analysis will be carried out for patients with and without septic shock at presentation, and for patients whose initial APACHE II scores are > 20 versus ≤ 20.DiscussionIn addition to an estimate of the clinical effectiveness of an OA approach for SCIAS, an understanding of its cost effectiveness will be required prior to its adoption in any resource-constrained environment. We will estimate this key parameter for use by clinicians and policymakers.Trial RegistrationClinicalTrials.gov, NCT03163095, registered May 22, 2017.

The role of the intra-abdominal view in complicated intra-abdominal infections

BackgroundThe prognostic role of what a surgeon observes in the abdomen of patients with complicated intra-abdominal infection (cIAI) is largely unknown. The aim of this prospective study was to systemically analyze components of the intra-abdominal view (IAV) and their association to severe complicated intra-abdominal sepsis (SCIAS) or mortality.MethodsThe study cohort consisted of adult patients with cIAI. The operating surgeon filled a paper form describing the intra-abdominal view. Demographics, operative details, and preoperative physiological status were collected. Descriptive, univariate, and multivariate statistical analyses were performed, and a new score was developed based on regression coefficients. The primary outcome was a composite outcome of SCIAS or 30-day mortality, in which SCIAS was defined as organ dysfunctions requiring intensive care unit admission.ResultsA total of 283 patients were analyzed. The primary outcome was encountered in 71 (25%) patients. In the IAV, independent risk factors for the primary outcome were fecal or bile as exudate (odds ratio (OR) 1.98, 95% confidence interval 1.05–3.73), diffuse peritonitis (OR 2.15, 1.02–4.55), diffuse substantial redness of the peritoneum (OR 5.73, 2.12–15.44), and a non-appendiceal source of cIAI (OR 11.20, 4.11–30.54). Based on these factors, an IAV score was developed and its performance analyzed. The area under the receiver operating characteristic for the IAV score was 0.81. The IAV score also correlated significantly with several outcomes and organ dysfunctions.ConclusionsThe extent of peritonitis, diffuse substantial redness of the peritoneum, type of exudate, and source of infection associate independently with SCIAS or mortality. A high IAV score associates with mortality and organ dysfunctions, yet it needs further external validation. Combining components of IAV into comprehensive scoring systems for cIAI patients may provide additional value compared to the current scoring systems.Trial registrationThe study protocol was retrospectively registered on April 4, 2016, right after the first enrolled patient at Clinicaltrials.gov database (NCT02726932).

Utility of sequential organ failure assessment score in predicting outcome for patients with peritoneal sepsis

Background: Severe complicated intra-abdominal sepsis (SCIAS) is a worldwide challenge with increasing incidence. The sequential organ failure assessment (SOFA) score numerically quantifies the number and severity of failed organs. We examined the utility of the SOFA score for assessing outcome of patients with severe peritoneal sepsis.Methods: This is a prospective observational study. A total of 100 patients who presented to emergency department of Victoria hospital with features suggestive of peritoneal sepsis from January 2018 to August 2018 were included in the study. The presence of organ dysfunction was assessed using a sequential organ failure assessment (SOFA). Clinical, microbiologic, and laboratory factors were considered for assessing the outcome.Results: Forty-two patients had two or more sites of infection on admission. Bacteraemia was confirmed in 20 patients. 88 patients were surgical. The median age of patients was 69 years. Males being more commonly affected than females. Twenty-eight days survival rate was 41%. The incidence of organ dysfunction on day 1 was noted more frequently for renal, cardiovascular, and neurological systems. SOFA score on day 1 and day 3 were significantly higher in non-survivors than those in survivors. Patients with three and higher number of organ systems with dysfunction had a lower survival rate than the subgroups of patients with one or two organ systems with dysfunction.Conclusions: The SOFA score provides potentially valuable prognostic information on in hospital survival when applied to patients with severe peritoneal sepsis.

Systematic Review of Laparostomy/Open Abdomen to Prevent Acute Compartimental Syndrome (ACS).

Laparostomy is defined as a surgical technique in which the peritoneal cavity is opened and left open, called "open abdomen" (OA). An open abdomen presents numerous challenges for the clinician. Specific pathologies like severe intraabdominal sepsis, trauma requiring damage control, abdominal compartment syndrome, staged abdominal repair and other complex abdominal pathologies can be managed with laparostomy. Laparostomy allows abdominal re-exploration, clearing and control of abdominal fluid of the fascia, avoiding intra-abdominal hypertension (IAH), abdominal wall closure.

Closed Or Open after Source Control Laparotomy for Severe Complicated Intra-Abdominal Sepsis (the COOL trial): study protocol for a randomized controlled trial

BackgroundSevere complicated intra-abdominal sepsis (SCIAS) has an increasing incidence with mortality rates over 80% in some settings. Mortality typically results from disruption of the gastrointestinal tract, progressive and self-perpetuating bio-mediator generation, systemic inflammation, and multiple organ failure. Principles of treatment include early antibiotic administration and operative source control. A further therapeutic option may be open abdomen (OA) management with active negative peritoneal pressure therapy (ANPPT) to remove inflammatory ascites and ameliorate the systemic damage from SCIAS. Although there is now a biologic rationale for such an intervention as well as non-standardized and erratic clinical utilization, this remains a novel therapy with potential side effects and clinical equipoise.MethodsThe Closed Or Open after Laparotomy (COOL) study will constitute a prospective randomized controlled trial that will randomly allocate eligible surgical patients intra-operatively to either formal closure of the fascia or use of the OA with application of an ANPTT dressing. Patients will be eligible if they have free uncontained intra-peritoneal contamination and physiologic derangements exemplified by septic shock OR a Predisposition-Infection-Response-Organ Dysfunction Score ≥ 3 or a World-Society-of-Emergency-Surgery-Sepsis-Severity-Score ≥ 8. The primary outcome will be 90-day survival. Secondary outcomes will be logistical, physiologic, safety, bio-mediators, microbiological, quality of life, and health-care costs. Secondary outcomes will include days free of ICU, ventilation, renal replacement therapy, and hospital at 30 days from the index laparotomy. Physiologic secondary outcomes will include changes in intensive care unit illness severity scores after laparotomy. Bio-mediator outcomes for participating centers will involve measurement of interleukin (IL)-6 and IL-10, procalcitonin, activated protein C (APC), high-mobility group box protein-1, complement factors, and mitochondrial DNA. Economic outcomes will comprise standard costing for utilization of health-care resources.DiscussionAlthough facial closure after SCIAS is considered the current standard of care, many reports are suggesting that OA management may improve outcomes in these patients. This trial will be powered to demonstrate a mortality difference in this highly lethal and morbid condition to ensure critically ill patients are receiving the best care possible and not being harmed by inappropriate therapies based on opinion only.Trial registrationClinicalTrials.gov, NCT03163095.

Getting the invite list right: a discussion of sepsis severity scoring systems in severe complicated intra-abdominal sepsis and randomized trial inclusion criteria

BackgroundSevere complicated intra-abdominal sepsis (SCIAS) is a worldwide challenge with increasing incidence. Open abdomen management with enhanced clearance of fluid and biomediators from the peritoneum is a potential therapy requiring prospective evaluation. Given the complexity of powering multi-center trials, it is essential to recruit an inception cohort sick enough to benefit from the intervention; otherwise, no effect of a potentially beneficial therapy may be apparent. An evaluation of abilities of recognized predictive systems to recognize SCIAS patients was conducted using an existing intra-abdominal sepsis (IAS) database.MethodsAll consecutive adult patients with a diffuse secondary peritonitis between 2012 and 2013 were collected from a quaternary care hospital in Finland, excluding appendicitis/cholecystitis. From this retrospectively collected database, a target population (93) of those with either ICU admission or mortality were selected. The performance metrics of the Third Consensus Definitions for Sepsis and Septic Shock based on both SOFA and quick SOFA, the World Society of Emergency Surgery Sepsis Severity Score (WSESSSS), the APACHE II score, Manheim Peritonitis Index (MPI), and the Calgary Predisposition, Infection, Response, and Organ dysfunction (CPIRO) score were all tested for their discriminant ability to identify this subgroup with SCIAS and to predict mortality.ResultsPredictive systems with an area under-the-receiving-operating characteristic (AUC) curve > 0.8 included SOFA, Sepsis-3 definitions, APACHE II, WSESSSS, and CPIRO scores with the overall best for CPIRO. The highest identification rates were SOFA score ≥ 2 (78.4%), followed by the WSESSSS score ≥ 8 (73.1%), SOFA ≥ 3 (75.2%), and APACHE II ≥ 14 (68.8%) identification. Combining the Sepsis-3 septic-shock definition and WSESSS ≥ 8 increased detection to 80%. Including CPIRO score ≥ 3 increased this to 82.8% (Sensitivity-SN; 83% Specificity-SP; 74%. Comparatively, SOFA ≥ 4 and WSESSSS ≥ 8 with or without septic-shock had 83.9% detection (SN; 84%, SP; 75%, 25% mortality).ConclusionsNo one scoring system behaves perfectly, and all are largely dominated by organ dysfunction. Utilizing combinations of SOFA, CPIRO, and WSESSSS scores in addition to the Sepsis-3 septic shock definition appears to offer the widest “inclusion-criteria” to recognize patients with a high chance of mortality and ICU admission.Trial registrationhttps://clinicaltrials.gov/ct2/show/NCT03163095; Registered on May 22, 2017.

Circulating Plasma microRNAs can differentiate Human Sepsis and Systemic Inflammatory Response Syndrome (SIRS).

Systemic inflammation in humans may be triggered by infection, termed sepsis, or non-infective processes, termed non-infective systemic inflammatory response syndrome (SIRS). MicroRNAs regulate cellular processes including inflammation and may be detected in blood. We aimed to establish definitive proof-of-principle that circulating microRNAs are differentially affected during sepsis and non-infective SIRS. Critically ill patients with severe (n = 21) or non-severe (n = 8) intra-abdominal sepsis; severe (n = 23) or non-severe (n = 21) non-infective SIRS; or no SIRS (n = 16) were studied. Next-generation sequencing and qRT-PCR were used to measure plasma microRNAs. Detectable blood miRNAs (n = 116) were generally up-regulated in SIRS compared to no-SIRS patients. Levels of these ‘circulating inflammation-related microRNAs’ (CIR-miRNAs) were 2.64 (IQR: 2.10–3.29) and 1.52 (IQR: 1.15–1.92) fold higher for non-infective SIRS and sepsis respectively (p < 0.0001), hence CIR-miRNAs appeared less abundant in sepsis than in SIRS. Six CIR-miRNAs (miR-30d-5p, miR-30a-5p, miR-192-5p, miR-26a-5p, miR-23a-5p, miR-191-5p) provided good-to-excellent discrimination of severe sepsis from severe SIRS (0.742–0.917 AUC of ROC curves). CIR-miRNA levels inversely correlated with pro-inflammatory cytokines (IL-1, IL-6 and others). Thus, among critically ill patients, sepsis and non-infective SIRS are associated with substantial, differential changes in CIR-miRNAs. CIR-miRNAs may be regulators of inflammation and warrant thorough evaluation as diagnostic and therapeutic targets.

The role of the open abdomen procedure in managing severe abdominal sepsis: WSES position paper.

The open abdomen (OA) procedure is a significant surgical advance, as part of damage control techniques in severe abdominal trauma. Its application can be adapted to the advantage of patients with severe abdominal sepsis, however its precise role in these patients is still not clear.In severe abdominal sepsis the OA may allow early identification and draining of any residual infection, control any persistent source of infection, and remove more effectively infected or cytokine-loaded peritoneal fluid, preventing abdominal compartment syndrome and deferring definitive intervention and anastomosis until the patient is appropriately resuscitated and hemodynamically stable and thus better able to heal.However, the OA may require multiple returns to the operating room and may be associated with significant complications, including enteroatmospheric fistulas, loss of abdominal wall domain and large hernias.Surgeons should be aware of the pathophysiology of severe intra-abdominal sepsis and always keep in mind the option of using open abdomen to be able to use it in the right patient at the right time.