Background: Emergency laparotomy for abdominal trauma is associated with high rates of surgical site infection (SSI). A protocol for antimicrobial prophylaxis (AMP) for trauma laparotomy was implemented to determine whether SSI could be reduced by adhering to established principles of AMP. Patients and Methods: A protocol utilizing ertapenem administered immediately before initiation of trauma laparotomy was adopted. Compliance with measures of adequate AMP were determined before and after protocol implementation, as were rates of SSI and other infections related to abdominal trauma. Univariable and multivariable analyses were performed to determine risk factors for development of infection related to trauma laparotomy. Results: Over a four-year period, 320 patient operations were reviewed. Ertapenem use for prophylaxis increased to 54% in the post-intervention cohort. Compliance with individual measures of appropriate AMP improved modestly. Overall, infections related to trauma laparotomy decreased by 46% (absolute decrease of 13%) in the post-intervention cohort. Multivariable analysis confirmed that treatment during the post-intervention phase was associated with this decrease, with a separate analysis suggesting that ertapenem use was an important factor in this decrease. Conclusions: Development of a standardized protocol for AMP in trauma laparotomy led to decreases in infectious complications after that procedure.

INTRODUCTION: Fever is a common problem in ICU patients. Despite clinical research and guideline recommendations indicating that clinical criteria and not fever alone should be used to order blood cultures (BC), these cultures are frequently obtained as part of a “fever workup” without careful review of the patient's clinical status. Unnecessary BC increase clinical workload and can lead to inappropriate treatments if the culture is contaminated. The purpose of this quality improvement (QI) initiative was to develop clinical criteria that providers were to review when ordering BC, with a goal to reduce the numbers of inappropriate BC. METHODS: This QI project was completed in a 36-bed surgery/trauma/burn ICU. After reviewing pertinent studies and guidelines, clinical criteria for obtaining blood cultures were developed by a subcommittee and approved by the ICU QI committee. These criteria included a core temperature of 38.3°C on at least two separate readings, evidence of sepsis with worsening physiologic parameters in at least one organ system, no apparent non-infectious cause of fever, at least 48 hours after non-emergency surgery, no BC obtained in the past 36 hours unless positive, and no plans for end of life or comfort care. The protocol was implemented in February, 2021. Numbers of BC were tracked for 5 months after implementation, and compared for the same 5-month periods for 2019 and 2020, to capture trends both before and during the COVID pandemic. RESULTS: The average number of BC/month prior to implementation of clinical criteria were 218 in 2019 and 209 in 2020 (CI 212-225). After implementation of clinical criteria, the number was 184 (CI 139-221) in 2021. This represented a 14% decrease in the number of BC, although this decrease did not achieve statistical significance. CONCLUSIONS: The implementation of clinical criteria for when to obtain BC resulted in a reduced cultures. Further investigation is needed to determine if this decrease is sustainable and will reach statistical significance, if the criteria can be further modified to further decrease inappropriate BC, and to ensure that decreasing the number of BC does not result in delayed recognition of bacteremia or other infections. Following clinical criteria to avoid unnecessary BC could be a helpful tool to help clinicians to choose wisely.

Fritz, Bradley; Sona, Carrie; Konzen, Lisa; White, Jason; Bertrand, Jill; Meyer, Shelley; Russell, Robert; Gasama, Heather; Mazuski, John Author Information

Background The objectives of the study were to investigate the organizational characteristics of acute care facilities worldwide in preventing and managing infections in surgery; assess participants’ perception regarding infection prevention and control (IPC) measures, antibiotic prescribing practices, and source control; describe awareness about the global burden of antimicrobial resistance (AMR) and IPC measures; and determine the role of the Coronavirus Disease 2019 pandemic on said awareness. Methods A cross-sectional web-based survey was conducted contacting 1432 health care workers (HCWs) belonging to a mailing list provided by the Global Alliance for Infections in Surgery. The self-administered questionnaire was developed by a multidisciplinary team. The survey was open from May 22, 2021, and June 22, 2021. Three reminders were sent, after 7, 14, and 21 days. Results Three hundred four respondents from 72 countries returned a questionnaire, with an overall response rate of 21.2%. Respectively, 90.4% and 68.8% of participants stated their hospital had a multidisciplinary IPC team or a multidisciplinary antimicrobial stewardship team. Local protocols for antimicrobial therapy of surgical infections and protocols for surgical antibiotic prophylaxis were present in 76.6% and 90.8% of hospitals, respectively. In 23.4% and 24.0% of hospitals no surveillance systems for surgical site infections and no monitoring systems of used antimicrobials were implemented. Patient and family involvement in IPC management was considered to be slightly or not important in their hospital by the majority of respondents (65.1%). Awareness of the global burden of AMR among HCWs was considered very important or important by 54.6% of participants. The COVID-19 pandemic was considered by 80.3% of respondents as a very important or important factor in raising HCWs awareness of the IPC programs in their hospital. Based on the survey results, the authors developed 15 statements for several questions regarding the prevention and management of infections in surgery. The statements may be the starting point for designing future evidence-based recommendations. Conclusion Adequacy of prevention and management of infections in acute care facilities depends on HCWs behaviours and on the organizational characteristics of acute health care facilities to support best practices and promote behavioural change. Patient involvement in the implementation of IPC is still little considered. A debate on how operationalising a fundamental change to IPC, from being solely the HCWs responsibility to one that involves a collaborative relationship between HCWs and patients, should be opened.

Klemisch, Robert1; Kirsch, Jordan2; Khawja, Shumaila2; Schechter, Matthew3; Hoofnagle, Mark2; Mazuski, John4 Author Information

This exploratory analysis assessed efficacy and safety outcomes in patients with Gram-negative bacteremia treated with ceftazidime-avibactam or comparator across five phase 3, randomized, controlled, multi-center trials in adults with complicated intra-abdominal infection (cIAI), complicated urinary tract infection (cUTI)/pyelonephritis, hospital-acquired pneumonia (HAP), and ventilator-associated pneumonia (VAP). In each trial, RECLAIM and RECLAIM 3 (cIAI; NCT01499290/NCT01726023), REPRISE (cIAI/cUTI; NCT01644643), RECAPTURE (cUTI; NCT01595438/NCT01599806), and REPROVE (HAP/VAP; NCT01808092), patients were randomized 1:1 to intravenous ceftazidime-avibactam (plus metronidazole for those with cIAI) or comparators (carbapenems in > 97% patients) for 5–21 days. Efficacy assessments included clinical and microbiological responses at the test-of-cure visit in the pooled Gram-negative extended microbiologically evaluable (GNeME) population (bacteremia subset). Safety outcomes were summarized for patients with positive bacterial blood culture(s) at baseline who received ≥ 1 dose of study treatment. The overall safety population included 4050 patients (ceftazidime-avibactam, n = 2024; comparator, n = 2026). The GNeME population (bacteremia subset) comprised 101 patients (ceftazidime-avibactam, n = 54; comparator, n = 47). Clinical cure rates (all indications combined) were 47/54 (87.0%) for ceftazidime-avibactam and 39/47 (83.0%) for comparators; favorable microbiological response rates were 43/54 (79.6%) and 32/47 (68.1%), respectively. Clinical and microbiological responses in the bacteremia subset were generally similar to those in the overall set. The pattern of adverse events in patients with bacteremia was similar between treatment groups and was consistent with the known safety profile of ceftazidime-avibactam. This analysis provides supportive evidence of the efficacy and safety of ceftazidime-avibactam in patients with Gram-negative bacteremia associated with cIAI, cUTI/pyelonephritis, or HAP/VAP.

Appropriate measures of infection prevention and management are integral to optimal clinical practice and standards of care. Among surgeons, these measures are often over-looked. However, surgeons are at the forefront in preventing and managing infections. Surgeons are responsible for many of the processes of healthcare that impact the risk for surgical site infections and play a key role in their prevention. Surgeons are also at the forefront in managing patients with infections, who often need prompt source control and appropriate antibiotic therapy, and are directly responsible for their outcome. In this context, the direct leadership of surgeons in infection prevention and management is of utmost importance. In order to disseminate worldwide this message, the editorial has been translated into 9 different languages (Arabic, Chinese, French, German, Italian, Portuguese, Spanish, Russian, and Turkish).

Acute colonic diverticulitis is one of the most common clinical conditions encountered by surgeons in the acute setting. An international multidisciplinary panel of experts from the World Society of Emergency Surgery (WSES) updated its guidelines for management of acute left-sided colonic diverticulitis (ALCD) according to the most recent available literature. The update includes recent changes introduced in the management of ALCD. The new update has been further integrated with advances in acute right-sided colonic diverticulitis (ARCD) that is more common than ALCD in select regions of the world.

Background: Recommended treatment for complicated peri-rectal abscess is incision and drainage (I&D) in conjunction with antibiotics. However, there is no standard antibiotic regimen for post-operative therapy described in the published literature. Our hypothesis was that appropriate post-operative antibiotic therapy after emergency I&D of complicated peri-rectal abscess will improve patient outcomes. Methods: Data from 58 patients with complicated peri-rectal abscess who underwent emergency I&D were analyzed retrospectively. Demographic, microbiologic, and antibiotic data were abstracted. Adequateness of antibiotics was judged by susceptibility data when available or by comparing the antibiotic spectrum with the type of organisms grown in culture when susceptibility data were not available. The Student t-test and chi(2) test were used to analyze continuous and categorical variables, respectively. Multivariable analysis was used to adjust for confounding variables influencing recurrence rates. Results: Of the 58 patients reviewed, 12 were excluded because there was no culture information available or the culture showed no growth. Of the remaining 46 patients, 33 (72%) were male and 29 (63%) were African American. The mean age was 39.4 +/- 16.4 years and the Body Mass Index was 28.4 +/- 6.6 kg/m(2). Culture data revealed mixed aerobic/anaerobic organisms in 17 (37%), mixed aerobic organisms in 15 (32.6%), gram-positive organisms in 9 (19.6%), gram-negative organisms in 2 (4.4%), and other organisms in 3 (6.6%). Twenty-five patients (54.4%) received adequate antibiotic coverage with the remainder inadequately covered. The inadequate antibiotic therapy cohort had a higher re-admission rate for abscess recurrence (n = 6 [28.6%] versus n = 1 [4%]; p = 0.021). More than half were readmitted 30 days or more after the index procedure. There were no differences in length of stay (LOS), intensive care unit LOS, or Charlson Comorbidity Index between the groups. Conclusion: Inadequate antibiotic coverage after I&D of complicated peri-rectal abscess resulted in a six-fold increase in the re-admission rate. A standard oral protocol combining antibiotics covering typical gram-positive, gram-negative, and anaerobic organisms should provide adequate coverage after surgical drainage. Additional prospective studies are needed to elucidate the optimal antibiotic regimen for these patients.

Robertson, Laurie; Manasco, Anton; Sona, Carrie; Taylor, Beth; Mazuski, John Author Information

In the last three decades, Clostridium difficile infection (CDI) has increased in incidence and severity in many countries worldwide. The increase in CDI incidence has been particularly apparent among surgical patients. Therefore, prevention of CDI and optimization of management in the surgical patient are paramount. An international multidisciplinary panel of experts from the World Society of Emergency Surgery (WSES) updated its guidelines for management of CDI in surgical patients according to the most recent available literature. The update includes recent changes introduced in the management of this infection.

This Clinical Guideline Synopsis reviews the Tokyo Guidelines 2018 on antimicrobial therapy for acute cholangitis and cholecystitis.

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BACKGROUNDWith the advent of anti-Helicobacter pylori therapy, hospital admissions for peptic ulcer disease (PUD) have declined significantly since the 1990s. Despite this, operative treatment of PUD still is common. Although previous papers suggest that Candida in peritoneal fluid cultures may be associated with worse outcomes in patients with perforated peptic ulcers (PPUs), post-operative anti-fungal therapy has not been effective. We hypothesized that pre-operative anti-fungal drugs improve outcomes in patients with PPUs undergoing operative management.PATIENTS AND METHODSA prospectively maintained Acute and Critical Care Surgery (ACCS) database spanning 2008-2015 and including more than 7,000 patients was queried for patients with PPUs. Demographics and clinical outcomes were abstracted. Pre-operative anti-fungal use, intra-operative peritoneal fluid cultures, and infectious outcomes were abstracted manually. We compared outcomes and the presence of fungal infections in patients receiving peri-operative anti-fungal drugs in the entire cohort and in patients with intra-operative peritoneal fluid cultures. Frequencies were compared by the Fisher exact or χ2 test as appropriate. The Student's t-test was used for continuous variables.RESULTSThere were 107 patients with PPUs who received operative management; 27 (25.2%) received pre-operative anti-fungal therapy; 33 (30.8%) received peritoneal fluid culture, and 17 cultures (51.5%) were positive for fungus. The presence of fungus in the cultures did not affect the outcomes. There were no differences in length of stay (LOS), intensive care unit (ICU) LOS, ventilator days, 30-day re-admission rates, or rates of intra-abdominal abscess formation or fungemia in patients who received pre-operative anti-fungal drugs regardless of the presence of fungi in the peritoneal fluid.CONCLUSIONCandida has been recovered in 29%-57% of peritoneal fluid cultures in patients with PPUs. However, no studies have evaluated pre-operative anti-fungal therapy in PPUs. Our data suggest that pre-operative anti-fungal drugs are unnecessary in patients undergoing operative management for PPU.

BACKGROUNDPrevious studies have suggested that percutaneous drainage and interval appendectomy is an effective treatment for appendicitis with associated abscess. Few studies to date have analyzed risk factors for failed drain management. We hypothesized that older patients with more co-morbidities would be at higher risk for failing conservative treatment.METHODSThe 2010-2014 editions of the National Inpatient Sample (NIS) were queried for patients with diagnoses of peri-appendiceal abscesses. Minors and elective admissions were excluded. We identified patients who underwent percutaneous drainage and defined drain failure as undergoing a surgical operation after drainage but during the same inpatient visit to assess for factors associated with failure of drainage alone as a treatment. After univariable analysis, binomial logistic regression was used to assess for independent risk factors. Frequencies were analyzed by χ2 and continuous variables by Student's t-test.RESULTSA total of 2,209 patients with appendiceal abscesses received drains; 561 patients (25.4%) failed conservative management and underwent operative intervention. On univariable analysis, patients who failed conservative management were younger, more likely to be Hispanic, have more inpatient diagnoses, and to have undergone drainage earlier in the hospital course. Multivariable regression demonstrated that the number of diagnoses, female sex, and Hispanic race were predictive of failure of drainage alone. Older age, West and Midwest census regions, and later drain placement were predictive of successful treatment with drainage alone. Failure was associated with more charges and longer hospital stay but not with a higher mortality rate.CONCLUSIONApproximately a quarter of patients will fail management of appendiceal abscess with percutaneous drain placement alone. Risk factors for failure are patient complexity, female sex, earlier drainage, and Hispanic race. Failure of drainage is associated with higher total charges and longer hospital stay; however, no change in the mortality rate was noted.

Background: Chronic osteomyelitis associated with a stage IV decubitus ulcer is a challenging condition to manage, characterized by frequent relapses and need for long-term anti-microbial therapy. Although gram-positive cocci are the most common causes, fungal infections have been reported, usually in immunocompromised hosts. We present a case of Cladophialophora osteomyelitis in a patient without known immunocompromised that was managed with a Girdlestone pseudoarthroplasty. Case Report: A 70-year-old male presented to our emergency room with fever, right hip pain, and purulent drainage from a right greater trochanter stage IV decubitus ulcer. His medical history was significant for T10 paraplegia secondary to spinal ependymomas and multiple spinal procedures, as well as significant recent weight loss. Past operations included multiple spinal procedures and repair of a right intertrochanteric femoral fracture with a plate and lateral compression screws. This led to post-operative decubitus ulcer formation over the right greater trochanter, requiring a gracilis flap. The flap remained intact for three years, then re-ulcerated. He subsequently developed femoral head osteomyelitis. To facilitate the treatment, the hardware was removed three weeks prior to presentation. With evidence of worsening osteomyelitis and a new soft-tissue infection, a Girdlestone procedure was performed. Intra-operatively, he was noted to have a pathological intertrochanteric fracture. Soft-tissue cultures yielded Pseudomonas aeruginosa; bone cultures grew Streptococcus dysgalactiae and Cladophialophora spp. Post-operatively, his wound was managed with negative pressure wound therapy with instillation and dwell (NPWTi-d). Delayed primary closure over a drain and topical negative pressure was done four days later. His course was uneventful, and he was discharged six days later. At his four-month follow-up, the wound was completely healed. Conclusion: Invasive fungal infections are rare in immunocompetent individuals. Cladophialophora osteomyelitis has been found in immunocompromised individuals with concomitant cerebral abscesses. To our knowledge, this is the first case of osteomyelitis without previously known immunocompromise.