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Background: The use of illicit substances during pregnancy has increased 4-fold in the past two decades, negatively impacting both mother and fetus. The rate and clinical outcomes of substance use in pregnant trauma patients (PTPs) are not well studied. We sought to evaluate clinical outcomes of PTPs with positive urine toxicology, hypothesizing a higher rate of in-hospital maternal complications for PTPs with a positive urine toxicology ((+)Utox) compared to those testing negative ((-)Utox). Methods: PTPs (≥18 years old) were included in this multicenter retrospective study between 2016 and 2021. We included patients with known urine toxicology results and compared (+)Utox vs (-)Utox PTPs. Results: From 852 PTPs, 84 (9.8%) had a (+)Utox with the most common illicit substance being THC (57%) followed by methamphetamine (44%). (+)Utox PTPs had higher rates of blunt head injury (9.5% vs 4.2%, P = .028), extremity injury (14.3% vs 6.5%, P = .009), domestic violence (21.4% vs 5.9%, P < .001), suicide attempt (3.6% vs 0.3%, P < .001), and uterine contractions (46% vs 23.5%, P < .001). Abnormal fetal heart tracing, premature rupture of membranes and placental injury were similar between groups (all P > .05). The rate of maternal complications was similar in both groups (all P > .05). Conclusion: In this study, the rate of (+)Utox in PTPs was 9.8%. The (+)Utox group had similar rates of maternal complications but more commonly experienced uterine contractions which may be related to the physiology of drugs such as methamphetamines. PTPs with (+)Utox also more commonly were victims of domestic violence and suicide attempt, which merits further prevention research efforts.
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BACKGROUND: Rib fractures are one of the most common traumatic injuries and may result in significant morbidity and mortality. Despite growing evidence, technological advances and increasing acceptance, surgical stabilization of rib fractures (SSRF) remains not uniformly considered in trauma centers. Indications, contraindications, appropriate timing, surgical approaches and utilized implants are part of an ongoing debate. The present position paper, which is endorsed by the World Society of Emergency Surgery (WSES), and supported by the Chest Wall Injury Society, aims to provide a review of the literature investigating the use of SSRF in rib fracture management to develop graded position statements, providing an updated guide and reference for SSRF. METHODS: This position paper was developed according to the WSES methodology. A steering committee performed the literature review and drafted the position paper. An international panel of experts then critically revised the manuscript and discussed it in detail, to develop a consensus on the position statements. RESULTS: A total of 287 studies (systematic reviews, randomized clinical trial, prospective and retrospective comparative studies, case series, original articles) have been selected from an initial pool of 9928 studies. Thirty-nine graded position statements were put forward to address eight crucial aspects of SSRF: surgical indications, contraindications, optimal timing of surgery, preoperative imaging evaluation, rib fracture sites for surgical fixation, management of concurrent thoracic injuries, surgical approach, stabilization methods and material selection. CONCLUSION: This consensus document addresses the key focus questions on surgical treatment of rib fractures. The expert recommendations clarify current evidences on SSRF indications, timing, operative planning, approaches and techniques, with the aim to guide clinicians in optimizing the management of rib fractures, to improve patient outcomes and direct future research.
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Fracturas de las Costillas , Fracturas de las Costillas/cirugía , Humanos , Fijación de Fractura/métodosRESUMEN
ABSTRACT: Worldwide, one billion people sustain trauma, and 5 million people will die every year from their injuries. Countries must build trauma systems to effectively address this high-burden disease, but efforts are often challenged by financial constraints. Understanding mechanisms for trauma funding internationally can help to identify opportunities to address the burden of injuries. Trauma leaders from around the world contributed summaries around how trauma is managed across their respective continents. These were aggregated to create a comparison of worldwide trauma systems of care. The burden of injuries is high across the world's inhabited continents, but trauma systems remain underfunded worldwide and, as a result, are overall underdeveloped and do not rise to the levels required given the burden of disease. Some countries in Africa and Asia have invested in financing mechanisms such as road accident funds or trauma-specific funding. In Latin America, active surgeon involvement in accident prevention advocacy has made meaningful impact. All continents show progress in trauma system maturation. This article describes how different regions of the world organize and commit to trauma care financially. Overall, while trauma tends to be underfunded, there is evidence of change in many regions and good examples of what can happen when a country invests in building trauma systems. LEVEL OF EVIDENCE: Expert Opinions; Level VII.
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Salud Global , Heridas y Lesiones , Humanos , Heridas y Lesiones/terapia , Heridas y Lesiones/economía , Salud Global/economía , Países en Desarrollo , Centros Traumatológicos/economía , Centros Traumatológicos/organización & administración , Financiación de la Atención de la Salud , Traumatología/economía , Traumatología/organización & administraciónRESUMEN
BACKGROUND: Trauma, including traumatic brain injury (TBI), is the leading cause of nonobstetric maternal mortality during pregnancy. Few data are available regarding the optimal management of pregnant patients with TBI, leading to a lack of dedicated guidelines. We performed an international survey to examine the management of severe TBI in pregnant patients, focusing on monitoring, therapy, and intensive care practices. METHODS: This survey, endorsed by the World Society of Emergency Surgery, was composed of a questionnaire with 79 items divided into four sections: (1) general information (items 1-7), (2) management of the maternal-fetal unit (items 8-43), (3) management of intracranial hypertension (items 44-76), and (4) specific considerations (items 77-79). RESULTS: One hundred and twenty-two physicians from 110 centers in 35 countries responded. The main findings related to TBI care in pregnant patients included the following: (1) a lack of availability of a specific TBI protocol in pregnancy; (2) an increase in the utilization of magnetic resonance imaging as the primary neuroimaging tool; (3) higher hemoglobin thresholds for transfusion; and (4) a lower utilization of therapeutic hypothermia, neuromuscular blocking agents, and barbiturate coma. We also report large variability in the timing of cesarean section in pregnant patients with TBI (≥ 23 weeks of gestation) needing an emergency craniotomy (simultaneously 23% vs. later cesarean section 50.8%). CONCLUSIONS: Great variability in the management of pregnant patients with severe TBI was identified worldwide from the results of our survey. These findings, highlighting the lack of robust evidence on this topic, will be helpful to stimulate future investigations and to promote educational efforts on this difficult scenario.
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BACKGROUND: The timing of major fracture care in polytrauma patients has a relevant impact on outcomes. Yet, standardized treatment strategies with respect to concomitant injuries are rare. This study aims to provide expert recommendations regarding the timing of major fracture care in the presence of concomitant injuries to the brain, thorax, abdomen, spine/spinal cord, and vasculature, as well as multiple fractures. METHODS: This study used the Delphi method supported by a systematic review. The review was conducted in the Medline and EMBASE databases to identify relevant literature on the timing of fracture care for patients with the aforementioned injury patterns. Then, consensus statements were developed by 17 international multidisciplinary experts based on the available evidence. The statements underwent repeated adjustments in online- and in-person meetings and were finally voted on. An agreement of ≥75% was set as the threshold for consensus. The level of evidence of the identified publications was rated using the GRADE approach. RESULTS: A total of 12,476 publications were identified, and 73 were included. The majority of publications recommended early surgery (47/73). The threshold for early surgery was set within 24 hours in 45 publications. The expert panel developed 20 consensus statements and consensus >90% was achieved for all, with 15 reaching 100%. These statements define conditions and exceptions for early definitive fracture care in the presence of traumatic brain injury (n = 5), abdominal trauma (n = 4), thoracic trauma (n = 3), multiple extremity fractures (n = 3), spinal (cord) injuries (n = 3), and vascular injuries (n = 2). CONCLUSION: A total of 20 statements were developed on the timing of fracture fixation in patients with associated injuries. All statements agree that major fracture care should be initiated within 24 hours of admission and completed within that timeframe unless the clinical status or severe associated issues prevent the patient from going to the operating room. LEVEL OF EVIDENCE: Systematic Review/Meta-Analysis; Level IV.
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Consenso , Técnica Delphi , Traumatismo Múltiple , Humanos , Traumatismo Múltiple/terapia , Traumatismo Múltiple/complicaciones , Tiempo de Tratamiento/estadística & datos numéricos , Tiempo de Tratamiento/normas , Fracturas Óseas/terapia , Fracturas Óseas/cirugía , Fracturas Óseas/complicaciones , Fracturas MúltiplesRESUMEN
ABSTRACT: Fat embolism syndrome refers to a systemic condition caused by the circulation of fat droplets in the bloodstream, reaching various target organs typically after major bone fractures or related surgical procedures. Although most cases resolve spontaneously, severe instances can lead to significant respiratory failure, neurological damage, and even mortality. Therefore, appropriate prevention, timely diagnosis, and management are crucial for trauma patients at risk. The objective of this review article is to explore the definition, epidemiology, risk factors, clinical presentation, and pathophysiology of fat embolism syndrome. Furthermore, it aims to examine current recommendations for the accurate diagnosis, prevention, and treatment of it, providing a comprehensive guide for the effective management of patients prone to this condition.
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Embolia Grasa , Heridas y Lesiones , Embolia Grasa/etiología , Embolia Grasa/diagnóstico , Embolia Grasa/terapia , Humanos , Factores de Riesgo , Heridas y Lesiones/complicacionesRESUMEN
ABSTRACT: There have been numerous changes in resuscitation strategies for severely injured patients over the last several decades. Certain strategies, such as aggressive crystalloid resuscitation, have largely been abandoned because of the high incidence of complications and worsening of trauma-induced coagulopathy. Significant emphasis has been placed on restoring a normal coagulation profile with plasma or whole blood transfusion. In addition, the importance of the lethal consequences of trauma-induced coagulopathy, such as hyperfibrinolysis, has been easily recognized by the use of viscoelastic testing, and its treatment with tranexamic acid has been extensively studied. Furthermore, the critical role of early intravenous calcium administration, even before blood transfusion administration, has been emphasized. Other adjuncts, such as fibrinogen supplementation with fibrinogen concentrate or cryoprecipitate and prothrombin complex concentrate, are being studied and incorporated in some of the institutional massive transfusion protocols. Finally, balanced blood component transfusion (1:1:1 or 1:1:2) and whole blood have become commonplace in trauma centers in North America. This review provides a description of recent developments in resuscitation and a discussion of recent innovations and areas for future investigation.
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BACKGROUND: Current guidelines recommend 24-hour telemetry monitoring for isolated sternal fractures (ISFs) with electrocardiogram (ECG) abnormalities or troponin elevation. However, a single-center study suggested ISF patients with minor ECG abnormalities (sinus tachycardia/bradycardia, nonspecific arrhythmia/ST-changes, and bundle branch block) may not require 24-hour telemetry monitoring. This study sought to corroborate this, hypothesizing ISF patients would not develop blunt cardiac injury (BCI). MATERIALS & METHODS: A retrospective study was performed at 8 trauma centers (1/2018-8/2020). Patients with ISF (abbreviated injury scale <2 for the head/neck/face/abdomen/extremities) and minor ECG abnormalities or troponin elevations were included. Patients with multiple rib fractures or hemothorax/pneumothorax were excluded. The primary outcome was an echocardiogram confirmed BCI. The secondary outcome was significant BCI defined as cardiogenic shock, dysrhythmia requiring treatment, post-traumatic cardiac structural defects, unexplained hypotension, or cardiac-related procedures. Descriptive statistics were performed. RESULTS: Of 124 ISF patients with minor ECG abnormalities or troponin elevation, 90% were admitted with a mean stay of 35 hours. Echocardiogram was performed for 31.5% of patients, 10 (25.6%) of which had abnormalities. However, no patient had BCI diagnosed on echocardiography. In total, 2 patients (1.6%) had a significant BCI (atrial fibrillation and supraventricular tachycardia at 10 and 82 hours after injury). No patient died. CONCLUSIONS: Following ISF with minor ECG changes or troponin elevation, <2% suffered significant BCI, and none had an echocardiogram diagnosed BCI, despite >30% receiving echocardiogram. These findings challenge the dogma of mandatory observation periods following ISF with associated ECG abnormalities and support the lack of utility for routine echocardiography in these patients.
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Intra-abdominal infections (IAIs) are an important cause of morbidity and mortality in hospital settings worldwide. The cornerstones of IAI management include rapid, accurate diagnostics; timely, adequate source control; appropriate, short-duration antimicrobial therapy administered according to the principles of pharmacokinetics/pharmacodynamics and antimicrobial stewardship; and hemodynamic and organ functional support with intravenous fluid and adjunctive vasopressor agents for critical illness (sepsis/organ dysfunction or septic shock after correction of hypovolemia). In patients with IAIs, a personalized approach is crucial to optimize outcomes and should be based on multiple aspects that require careful clinical assessment. The anatomic extent of infection, the presumed pathogens involved and risk factors for antimicrobial resistance, the origin and extent of the infection, the patient's clinical condition, and the host's immune status should be assessed continuously to optimize the management of patients with complicated IAIs.
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Infecciones Intraabdominales , Humanos , Infecciones Intraabdominales/tratamiento farmacológico , Factores de Riesgo , Antibacterianos/uso terapéuticoRESUMEN
AIM: This study aimed to evaluate the impact of the WSES-AAST guidelines in clinical practice and to investigate the knowledge, attitudes, and practices of emergency surgeons in managing the complications of ulcerative colitis (UC) and Crohn's disease (CD). METHODS: The MIBODI survey is a cross-sectional study among WSES members designed as an international web-based survey, according to the Checklist for Reporting Results of Internet E-Surveys, to collect data on emergency surgeons' knowledge, attitudes, and practices concerning the management of patients presenting with acute complications of CD and UC. The questionnaire was composed of 30 questions divided into five sections: (1) demographic data, (2) primary evaluation, (3) non-operative management, (4) operative management, and (5) perianal sepsis management. RESULTS: Two hundred and forty-two surgeons from 48 countries agreed to participate in the survey. The response rate was 24.2% (242/1000 members on WSES mail list). Emergency surgeons showed high adherence to recommendations for 6 of the 21 assessed items, with a "correct" response rate greater than or equal to 60%, according to WSES-AAST recommendations. Nine critical issues were highlighted, with correct answers at a rate of less than 50%. CONCLUSIONS: Inflammatory bowel disease is a complex disease that requires a multidisciplinary approach with close collaboration between gastroenterologists and surgeons. Emergency surgeons play a crucial role in managing complications related to IBD. One year after publication, the MIBODI study showed significant global implementation of the WSES-AAST guidelines in clinical practice, offering an imperative tool in the improved management of IBD in emergency and urgent settings.
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INTRODUCTION: We have recently shown that readmission after EGS procedures carries a 4-fold higher mortality rate when compared to those not readmitted. Understanding factors associated with death after readmission is paramount to improving outcomes for EGS patients. We aimed to identify risk factors contributing to failure-to-rescue (FTR) during readmission after EGS. We hypothesized that most post-readmission deaths in EGS are attributable to FTR. METHODS: A retrospective cohort study using the NSQIP database 2013-2019 was performed. Patients who underwent 1 of 9 urgent/emergent surgical procedures representing 80% of EGS burden of disease, who were readmitted within 30 days post-procedure were identified. The procedures were classified as low- and high-risk. Patient characteristics analyzed included age, sex, BMI, ASA score comorbidities, postoperative complications, frailty, and FTR. The population was assessed for risk factors associated with mortality and FTR by uni- and multivariate logistic regression. RESULTS: Of 312,862 EGS cases, 16,306 required readmission. Of those, 10,748 (3.4%) developed a postoperative complication. Overall mortality after readmission was 2.4%, with 90.6% of deaths attributable to FTR. Frailty, high-risk procedures, pulmonary complications, AKI, sepsis, and the need for reoperation increased the risk of FTR. DISCUSSION: Death after a complication is common in EGS readmissions. The impact of FTR could be minimized with the implementation of measures to allow early identification and intervention or prevention of infectious, respiratory, and renal complications.
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Fracaso de Rescate en Atención a la Salud , Readmisión del Paciente , Complicaciones Posoperatorias , Humanos , Masculino , Femenino , Readmisión del Paciente/estadística & datos numéricos , Estudios Retrospectivos , Persona de Mediana Edad , Anciano , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/mortalidad , Factores de Riesgo , Fracaso de Rescate en Atención a la Salud/estadística & datos numéricos , Procedimientos Quirúrgicos del Sistema Digestivo/efectos adversos , Procedimientos Quirúrgicos del Sistema Digestivo/mortalidad , AdultoRESUMEN
BACKGROUND: Cardiac pacemaker implantation may be indicated in patients with refractory bradycardia following a cervical spinal cord injury (CSCI). However, evidence about the impact of this procedure on outcomes is lacking. We planned a study to assess whether the implantation of a pacemaker would decrease mortality and hospital resource utilization in patients with CSCI. METHODS: Adult patients with CSCI in the Trauma Quality Improvement Program (TQIP) database between 2016 and 2019 were retrospectively analyzed. Patients were divided into "pacemaker" and "non-pacemaker" groups, and their baseline characteristics and clinical outcomes were analyzed. RESULTS: A total of 6774 cases were analyzed. The pacemaker group showed higher in-hospital rates of cardiac arrest, myocardial infarction, and longer duration of mechanical ventilation and ICU stay than the non-pacemaker group. Nevertheless, pacemaker placement was associated with a significant decrease in mortality (4.2% vs 26.0%, P < .01). CONCLUSIONS: Patients with CSCI requiring a pacemaker placement had better survival than those treated without a pacemaker. Pacemaker implantation should be highly considered in patients who develop refractory bradycardia after CSCI.
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Bradicardia , Marcapaso Artificial , Traumatismos de la Médula Espinal , Humanos , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/terapia , Masculino , Femenino , Estudios Retrospectivos , Persona de Mediana Edad , Bradicardia/terapia , Bradicardia/etiología , Anciano , Adulto , Médula Cervical/lesiones , Vértebras Cervicales/lesiones , Respiración Artificial , Tiempo de Internación/estadística & datos numéricos , Paro Cardíaco/terapia , Paro Cardíaco/etiología , Paro Cardíaco/mortalidad , Infarto del Miocardio/complicaciones , Infarto del Miocardio/mortalidad , Infarto del Miocardio/terapiaRESUMEN
BACKGROUND: The direct association between procedure risk and outcomes in elderly patients who undergo emergency general surgery (EGS) has not been analyzed. Studies only highlight the importance of frailty. A comprehensive analysis of relevant risk factors and their association with outcomes in elderly patients who undergo EGS is lacking. We hypothesized that procedure risk has a stronger association with relevant outcomes in elderly patients who undergo EGS compared with frailty. STUDY DESIGN: Elderly patients (age >65 years) undergoing EGS operative procedures were identified in the NSQIP database (2018 to 2020) and stratified based on the presence of frailty calculated by the Modified 5-Item Frailty Index (mFI-5; mFI 0 nonfrail, mFI 1 to 2 frail, and mFI ≥3 severely frail) and based on procedure risk. Multivariable regression models and receiving operative curve analysis were used to determine risk factors associated with outcomes. RESULTS: A total of 59,633 elderly patients who underwent EGS were classified into nonfrail (17,496; 29.3%), frail (39,588; 66.4%), and severely frail (2,549; 4.3%). There were 25,157 patients in the low-risk procedure group and 34,476 in the high-risk group. Frailty and procedure risk were associated with increased mortality, complications, failure to rescue, and readmissions. Differences in outcomes were greater when patients were stratified according to procedure risk compared with frailty stratification alone. Procedure risk had a stronger association with relevant outcomes in elderly patients who underwent EGS compared with frailty. CONCLUSIONS: Assessing frailty in the population of elderly patients who undergo EGS without adjusting for the type of procedure or procedure risk ultimately presents an incomplete representation of how frailty impacts patient-related outcomes.
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Cirugía de Cuidados Intensivos , Fragilidad , Evaluación Geriátrica , Complicaciones Posoperatorias , Procedimientos Quirúrgicos Operativos , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Cirugía de Cuidados Intensivos/estadística & datos numéricos , Anciano Frágil/estadística & datos numéricos , Fragilidad/complicaciones , Fragilidad/diagnóstico , Fragilidad/epidemiología , Cirugía General , Evaluación Geriátrica/métodos , Evaluación Geriátrica/estadística & datos numéricos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/prevención & control , Estudios Retrospectivos , Medición de Riesgo/métodos , Factores de Riesgo , Procedimientos Quirúrgicos Operativos/estadística & datos numéricos , Estados Unidos/epidemiología , Tratamiento de Urgencia/métodos , Tratamiento de Urgencia/estadística & datos numéricosRESUMEN
BACKGROUND & AIMS: The use of computer-aided detection (CADe) has increased the adenoma detection rates (ADRs) during colorectal cancer (CRC) screening/surveillance in randomized controlled trials (RCTs) but has not shown benefit in real-world implementation studies. We performed a single-center pragmatic RCT to evaluate the impact of real-time CADe on ADRs in colonoscopy performed by community gastroenterologists. METHODS: We enrolled 1100 patients undergoing colonoscopy for CRC screening, surveillance, positive fecal-immunohistochemical tests, and diagnostic indications at one community-based center from September 2022 to March 2023. Patients were randomly assigned (1:1) to traditional colonoscopy or real-time CADe. Blinded pathologists analyzed histopathologic findings. The primary outcome was ADR (the percentage of patients with at least 1 histologically proven adenoma or carcinoma). Secondary outcomes were adenomas detected per colonoscopy (APC), sessile-serrated lesion detection rate, and non-neoplastic resection rate. RESULTS: The median age was 55.5 years (interquartile range, 50-62 years), 61% were female, 72.7% were of Hispanic ethnicity, and 9.1% had inadequate bowel preparation. The ADR for the CADe group was significantly higher than the traditional colonoscopy group (42.5% vs 34.4%; P = .005). The mean APC was significantly higher in the CADe group compared with the traditional colonoscopy group (0.89 ± 1.46 vs 0.60 ± 1.12; P < .001). The improvement in adenoma detection was driven by increased detection of <5 mm adenomas. CADe had a higher sessile-serrated lesion detection rate than traditional colonoscopy (4.7% vs 2.0%; P = .01). The improvement in ADR with CADe was significantly higher in the first half of the study (47.2% vs 33.7%; P = .002) compared with the second half (38.7% vs 34.9%; P = .33). CONCLUSIONS: In a single-center pragmatic RCT, real-time CADe modestly improved ADR and APC in average-detector community endoscopists. (ClinicalTrials.gov number, NCT05963724).
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Adenoma , Colonoscopía , Diagnóstico por Computador , Humanos , Masculino , Femenino , Persona de Mediana Edad , Colonoscopía/métodos , Adenoma/diagnóstico , Diagnóstico por Computador/métodos , Detección Precoz del Cáncer/métodos , Neoplasias del Colon/diagnóstico , Anciano , Neoplasias Colorrectales/diagnósticoRESUMEN
Nearly 10% of pregnant women suffer traumatic injury. Clinical outcomes for pregnant trauma patients (PTPs) with severe injuries have not been well studied. We sought to describe outcomes for PTPs presenting with severe injuries, hypothesizing that PTPs with severe injuries will have higher rates of complications and mortality compared to less injured PTPs. A post-hoc analysis of a multi-institutional retrospective study at 12 Level-I/II trauma centers was performed. Patients were stratified into severely injured (injury severity score [ISS] > 15) and not severely injured (ISS < 15) and compared with bivariate analyses. From 950 patients, 32 (3.4%) had severe injuries. Compared to non-severely injured PTPs, severely injured PTPs were of similar maternal age but had younger gestational age (21 vs 26 weeks, p = 0.009). Penetrating trauma was more common in the severely injured cohort (15.6% vs 1.4%, p < 0.001). The severely injured cohort more often underwent an operation (68.8% vs 3.8%, p < 0.001), including a hysterectomy (6.3% vs 0.3%, p < 0.001). The severely injured group had higher rates of complications (34.4% vs 0.9%, p < 0.001), mortality (15.6% vs 0.1%, p < 0.001), a higher rate of fetal delivery (37.5% vs. 6.0%, p < 0.001) and resuscitative hysterotomy (9.4% vs. 0%, p < 0.001). Only approximately 3% of PTPs were severely injured. However, severely injured PTPs had a nearly 40% rate of fetal delivery as well as increased complications and mortality. This included a resuscitative hysterotomy rate of nearly 10%. Significant vigilance must remain when caring for this population.
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BACKGROUND: Acute mesenteric ischemia (AMI) is an emergent vascular disease caused by cessation of the blood supply to the small intestine. Despite advances in the diagnosis, intervention, and surgical procedures, AMI remains a life-threatening condition. Prostaglandin E2 major urinary metabolite (PGE-MUM), the urinary metabolite of prostaglandin E2, is known to be stable in urine and has been suggested to be a valuable biomarker for intestinal mucosal inflammation, such as ulcerative colitis. We therefore investigated whether or not PGE-MUM levels reflect the degree of ischemia in an intestinal ischemia-reperfusion model. METHODS: Male rats were used to establish a superior mesenteric artery occlusion (SMAO) group, in which the superior mesenteric artery was clamped, and a sham group. The clamping times in the SMAO group were either 30 minutes or 60 minutes, and reperfusion times were either 3 hours or 6 hours, after which PGE-MUM values were measured. RESULTS: The histological injury score of the SMAO (30-minute ischemia and 6-hour reperfusion group, 1.8 ± 0.4; 60-minute ischemia and 6-hour reperfusion group, 4.7 ± 0.5) and were significantly greater than that of the sham group (0.4 ± 0.7, p < 0.05). The PGE-MUM levels in the SMAO group (30-minutes ischemia and 6-hour reperfusion group, 483 ± 256; 60-minutes ischemia and 6-hour reperfusion group, 889 ± 402 ng/mL) were significantly higher than in the sham group (30-minute and 6-hour observation group, 51 ± 20; 60-minute and 6-hour observation group, 73 ± 32 ng/mL; p < 0.05). Furthermore, the PGE-MUM value was corrected by the concentration of urinary creatinine (Cr). The PGE-MUM/urinary Cr levels in the SMAO group were also significantly higher than in the sham group ( p < 0.05). CONCLUSION: We found that intestinal ischemia-reperfusion increased urinary PGE-MUM levels depending on the ischemic time. This suggests the potential utility of PGE-MUM as a noninvasive marker of intestinal ischemia.