Nosocomial infections are common in patients receiving extracorporeal membrane oxygenation (ECMO), with ECMO cannula-site infections (ECMO-CSI) being the most frequent infections directly related to the ECMO run. These infections can significantly impact patient outcomes. Currently, no adult guidelines exist for the prevention, diagnosis, and/or treatment of peripheral ECMO-CSI, resulting in heterogeneity in both clinical practice and research findings. We conducted a Delphi study involving 39 international experts in ECMO management. The experts participated in four Delphi rounds to reach consensus on various aspects of ECMO-CSI complicating peripheral ECMO (central ECMO excluded), including definition, clinical suspicion, diagnostic methods, preventive measures, and treatment. Consensus was defined as ≥ 70

BACKGROUND:Post-cardiotomy acute right ventricular failure (aRVF) constitutes a complex clinical challenge that might necessitate escalating interventions, including extracorporeal life support (ECLS). This study evaluated outcomes of adults requiring ECLS for post-cardiotomy aRVF compared with other post-cardiotomy indications. METHODS:In this multicenter, international, retrospective study, we analyzed patients undergoing post-cardiotomy ECLS from January 2000 to December 2020 and compared patients' characteristics and in-hospital mortality between aRVF and other indications. RESULTS:Of 2010 patients, 240 (12%) had aRVF and 1770 (88%) had other indications for ECLS. Demographics were similar between groups; median age was 65 (55-72) years (P = .217), and 60% were male (P = .675). The aRVF group showed higher preoperative right-sided cardiac dysfunction, including preexisting right ventricular failure (aRVF, 22%; other indications, 8%; P < .001) and biventricular failure (aRVF, 12%; other indications, 7%; P = .013). Patients with aRVF more frequently underwent tricuspid valve surgery (aRVF, 20%; other indications, 13%; P = .003) and aortic root procedures (aRVF, 24%; other indications, 13%). They also required longer ECLS support (aRVF, 135 [70-221] hours; other indications, 116 [58-192] hours; P = .025) and longer intensive care unit stay (aRVF, 15 [7-29] days; other indications, 13 [6-25] days; P = .042). Despite more complications, including nonsurgical bleeding (aRVF, 31%; other indications, 25%; P = .042) and persistent right-sided heart failure (aRVF, 50%; other indications, 17%; P < .001), both in-hospital survival (aRVF, 59%; other indications, 61%; P = .526) and long-term survival were comparable (log-rank P = .17). CONCLUSIONS:Patients requiring ECLS for post-cardiotomy aRVF, despite higher preoperative risks and complex clinical courses, achieve survival rates comparable to those of patients with other indications.

Objectives: Data on outcomes of patients undergoing isolated coronary artery bypass grafting (isolated CABG) versus CABG and concomitant left heart valve (LHV-CABG) surgery are conflicting, especially in extracorporeal life support (ECLS) settings. We compared characteristics, in-hospital outcomes, and overall survival between patients undergoing isolated-CABG and concomitant LHV-CABG requiring postcardiotomy ECLS from a large multicenter study. Methods: This retrospective, multicenter (34 centers), observational study included adults requiring postcardiotomy ECLS between 2000 and 2020. Clinical characteristics and outcomes were compared between patients who underwent isolated CABG with those who underwent LHV-CABG. Association between type of surgery and in-hospital survival was investigated through mixed-Cox proportional hazards models. Results: This study included 639 patients comprising 58.8% (n = 376) isolated CABG and 41.1% (n = 263) LHV-CABG, including 46.7% (n = 123) aortic, 38.8% (n = 102) mitral, and 14.5% (n = 38) combined aortic-mitral valve procedures. The LHV-CABG patients were older (P = .001), more frequently experienced preoperative pulmonary artery hypertension (P < .001), and 6.5% (n = 17) had active endocarditis. They required longer cardiopulmonary bypass times (P < .001) and cardiac surgery reoperations (P = .002). In-hospital mortality was 54.8% (n = 206) and 63.1% (n = 166) in the isolated CABG and LHV-CABG groups (P = .036), respectively. Crude hazard ratio for in-hospital mortality in LHV-CABG was 1.28 (95% CI, 1.03-1.58, P = .023) and did not change after adjustments. The 5-year postdischarge survival probabilities were 71.1% (95% CI, 61.0-82.2) and 69.3% (95% CI, 57.7-83.2; P = .210) for isolated CABG and LHV-CABG groups, respectively. Conclusions: LHV-CABG surgery, compared with isolated CABG, was associated with higher in-hospital mortality in patients requiring ECLS, whereas no midterm postdischarge survival differences could be detected. Early identification of patients in need for ECLS following LHV-CABG may improve outcomes.

Membrane oxygenator exchange can be a frequent requirement during extracorporeal membrane oxygenation (ECMO). In low-income health systems, the scarcity and cost of disposables pose significant challenges to timely exchanges. We describe a 48-year-old woman placed on veno-venous ECMO for refractory hypoxemic respiratory failure secondary to pneumonia. Within 30 min, the oxygenator developed thrombosis, characterized by a transmembrane pressure gradient of 229 mmHg. A total of 10 mg of recombinant tissue plasminogen activator (rt-PA) was administered through the premembrane port. Sixty minutes after infusion, the gradient decreased to 116 mmHg, with subsequent improvement in oxygenation. No bleeding occurred. The patient was successfully weaned from ECMO and discharged from the ICU without complications. Low-dose rtPA instillation into a failing oxygenator can postpone exchange and represents a viable salvage strategy for resource-limited ECMO programs.

Disclaimer:These guidelines are intended for educational use to build the knowledge of physicians and other health professionals in assessing the conditions and managing the treatment of patients undergoing extracorporeal life support (ECLS)/ECMO and describe what are believed to be useful and safe practice for ECLS and ECMO. The aim of clinical guidelines was to help clinicians to make informed decisions about their patients. However, adherence to a guideline does not guarantee a successful outcome. Healthcare professionals must make their own treatment decisions about care on a case-by-case basis, after consultation with their patients, using their clinical judgment, knowledge, and expertise. These guidelines do not take the place of physicians' and other health professionals' judgment in diagnosing and treatment of patients. These guidelines are not intended to and should not be interpreted as setting a standard of care or being deemed inclusive of all proper methods of care nor exclusive of other methods of care directed at obtaining the same results. The ultimate judgment must be made by the physician and other health professionals and the patient considering all the circumstances presented by the individual patient, and the known variability and biologic behavior of the clinical condition. These guidelines reflect the data at the time the guidelines were prepared; the results of subsequent studies or other information may cause revisions to the recommendations in these guidelines to be prudent to reflect new data, but ELSO is under no obligation to provide updates. In no event will ELSO be liable for any decision made or action taken in reliance upon the information provided through these guidelines.

BACKGROUND:Acute respiratory failure after cardiac surgery is an uncommon complication, affecting morbidity and mortality. In these patients, respiratory extracorporeal membrane oxygenation (ECMO) support may be beneficial, as it may help reduce pulmonary vasoconstriction and the impact of respiratory pressures on the heart. Nevertheless, literature reports of postcardiotomy veno-venous (V-V) ECMO use are sporadic. METHODS:This retrospective, multicenter cohort study analyzes data from the PELS-1 registry, focusing on adult patients who required V-V ECMO following cardiac surgery. PELS-1 was conducted across 34 cardiac surgery centers in 16 countries from 2000 to 2020. RESULTS:The study included 24 patients who received V-V ECMO over a total of 2163 patients requiring postocardiotomy extracorporeal support (1.1%). The median age was 64[50-69] years, and 16/24 (67%) were male. Median Euroscore II was 6.2[3.1-19.6]. Most patients required prolonged cardiopulmonary bypass (CPB) time (208[110-350] min). V-V ECMO was initiated in the ICU in 21 patients (87.5%) after a median of 5 [2-12] days postoperatively. ECMO support rapidly normalized gas exchange and lactate levels. However, complications were frequent: bleeding (10/22, 45.5%), acute kidney injury (10/24, 41.7%), pneumonia (10/24, 41.7%), and arrhythmias (7/24, 29.2%) were the most frequent ones. In-hospital mortality was high, with only 21.7% discharged alive. One-year survival was 12.5%. CONCLUSIONS:Reported outcomes of patients receiving V-V ECMO after cardiac surgery are poor, despite effective correction of gas exchange. Early recognition of isolated respiratory failure and careful patient selection should be promoted. Further research is needed to optimize management in this high-risk population.

Temporary mechanical circulatory support (t-MCS) is increasingly used in fulminant myocarditis (FM), yet long-term outcomes and risk factors remain poorly defined. From the FULLMOON international cohort (419 adults with suspected FM across 36 centers in 15 countries), 295 patients treated with venoarterial extracorporeal membrane oxygenation (V-A ECMO) and/or Impella were analyzed. The primary endpoint was mortality at 1 year, heart transplantation (HTx), or left-ventricular assist device (LVAD). Multivariate Cox regression identified predictors of adverse outcomes. A propensity score-weighted analysis assessed outcomes based on timing of endomyocardial biopsy (EMB): early (≤ 2 days), delayed (> 2 days), or none. The median age was 39 years (IQR 28–60), and 55

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by neuromuscular connectivity decline followed by motoneuron loss. Altered proteostasis is suggested as a transversal pathogenic mechanism, notably involving dysfunction at the level of the endoplasmic reticulum (ER). Protein disulfide isomerases (PDIs) are key enzymes that catalyze protein folding and disulfide bond formation in the ER. Importantly, PDIs function is disrupted in ALS. We previously identified mutations in the gene encoding PDIA3 (also known as Grp58 or ERp57) as risk factors for ALS, which were associated with altered neuromuscular junction (NMJ) organization when expressed in zebrafish, a phenotype recapitulated in PDIA3-null mice. Here, we generated a transgenic mouse line overexpressing the ALS-linked PDIA3 variant D217N and performed a comprehensive characterization of ALS-like features. The transgenic line exhibited moderate overexpression of mutant PDIA3D217N, which led to morphological alterations at the NMJ resembling those observed in ALS models and patients, along with abnormal distribution of oxidative and glycolytic muscle fibers. However, mutant PDIA3D217N expression did not result in motor impairment, coordination deficits, or motoneuron loss. At the molecular level, we observed reduced expression of SV2 in the spinal cord, an important synaptic protein involved in NMJ function. Our findings further support the involvement of PDIA3 dysfunction as a risk factor in the emergence of early features of ALS.

Simulation-based education (SBE) in health care is expanding in both scope and relevance. As on-the-job training is challenging in extracorporeal membrane oxygenation (ECMO), SBE features strongly in its curricula, yet little is known regarding its efficacy. We searched 4 databases through May 13, 2022 and conducted a narrative synthesis of 28 studies investigating SBE in ECMO. Notably, there were no standardized SBE ECMO curricula among studies. Nonetheless, taken together, these articles suggest that simulation improves competency scores, confidence, teamwork, troubleshooting emergencies, and times to critical actions and cannulation. Though the reporting of SBE in ECMO is heterogeneous, simulation may be comparable to, or more effective than, conventional training methods. Retention of knowledge and skills over time remains unclear though regular simulation training may be beneficial. There is a need to establish standardized ECMO curricula, of which SBE should be a core component.

Aortic surgery carries high risks and complication rates, particularly when extracorporeal life support (ECLS) is required. We compared outcomes of patients receiving post-cardiotomy ECLS after surgeries involving or not involving the thoracic aorta, with a focus on emergency operations. This retrospective multicenter study included adults requiring veno-arterial (V-A) ECLS for post-cardiotomy shock. In-hospital outcomes and long-term survival were analyzed. Among 2,058 patients, 382 (18.6%) underwent aortic and 1,676 (81.4%) non-aortic surgery. Patients undergoing aortic operations were younger (63.0, interquartile range [IQR]: 54.4–70 years; non-aortic: 65.0, IQR: 55–72 years; p = 0.020), with more emergencies (n = 126, 33.1%; non-aortic: n = 402, 24.3%; p < 0.001), longer cross-clamp times (148, IQR: 101–203 mins; non-aortic: 90, IQR: 59–133 mins; p < 0.001) and more postoperative bleeding events (n = 234, 62.4%; non-aortic: n = 922, 56.0%; p = 0.024). Stroke was more frequent after aortic surgery (n = 60, 15.8%; non-aortic: n = 157, 9.4%; p < 0.001), especially in emergency cases (n = 27, 21.6%; p = 0.034). In-hospital mortality was greater after aortic surgery (n = 258, 67.5%; non-aortic: n = 986, 58.8%; p = 0.002), with 49.9% (n = 189) on-ECLS mortality. Neurological injury caused death in 8.9% (n = 22) of patients undergoing aortic and 4.0% (n = 36) non-aortic operations. Post-discharge survival was similar ( p = 0.32), and emergency status did not affect mortality in the aortic group ( p = 0.643). Veno-arterial extracorporeal life support after aortic surgery is associated with higher bleeding, stroke, and in-hospital mortality compared with non-aortic surgery, independent of emergency status.

Disclaimer: This Extracorporeal Life Support Organization guideline describes early rehabilitation or mobilization of patients on extracorporeal membrane oxygenation (ECMO). The guideline describes useful and safe practices put together by an international interprofessional team with extensive experience in the field of ECMO and ECMO rehabilitation or mobilization. The guideline is not intended to define the delivery of care or substitute sound clinical judgment. The guideline is subject to regular revision as new scientific evidence becomes available.

Objectives Age is the main determinant for mortality in patients requiring postcardiotomy extracorporeal membrane oxygenation (PC-ECMO), but strategies to reverse this trend are unknown. This study investigates PC-ECMO outcomes in older patients (≥70 years) compared with younger patients (<70 years). Methods This retrospective study included patients who required PC-ECMO between 2000 and 2020. Variables independently associated with in-hospital mortality were identified using mixed Cox proportional hazards models. Results The study included 2057 patients (mean age: 62.3 [first and third quartile: 19-94]; male patients: n = 1213 [59%]): 1376 (67%) were <70 years and 680 (33%) were ≥70 years old. Older patients had more preoperative comorbidities, whereas younger patients had lower cardiac function and more preoperative intubation and vasopressor use. In-hospital mortality was 56.3% (n = 775) and 68.8% (n = 468) in the <70 year and ≥70 year groups, respectively (P < .001). The 7-year postdischarge survival rate was greater for the younger patient group (P < .001). Variables associated with in-hospital mortality in older patients were previous stroke (hazard ratio [HR], 1.39; 95% confidence interval [CI], 1.05-1.84), preoperative right ventricular failure (HR, 1.45; 95% CI, 1-2.1), aortic surgery (HR 1.65; 95% CI, 1.2-2.2), and postoperative complications including bleeding (HR 1.24; 95% CI, 1.0-1.5), cardiac arrest (HR, 1.65; 95% CI, 1.3-2.1), and right ventricular failure (HR, 1.29; 95% CI, 1.0-1.6). Conclusions PC-ECMO mortality is high in older patients. Preoperative factors including previous stroke and right ventricular failure and postoperative factors including bleeding, cardiac arrest, and right ventricular failure should be targeted to reduce in-hospital mortality after appropriate initial selection in older patients.

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by loss of motoneurons and compromised proteostasis. Dysfunction of the endoplasmic reticulum (ER) has been identified as a transversal pathogenic mechanism associated with motoneurons vulnerability in ALS. Protein disulfide isomerases (PDIs) are key enzymes catalyzing protein folding at the ER that are altered in the disease, involving biochemical and genetic perturbations. In ALS cases, we previously identified variants in the gene encoding PDIA3 (also known as Grp58 or ERp57), which were associated with altered neurite outgrowth in cell culture and abnormal motoneuron connectivity in zebrafish. Here, we report the generation of transgenic mice expressing the ALS-associated PDIA3Q481K variant. Moderate PDIA3Q481K overexpression resulted in altered motor capacity accompanied by decreased motoneuron number. The adverse effects of PDIA3Q481K expression were associated with induction of ER stress in the spinal cord and subtle morphological changes in neuromuscular junctions. Our results suggest that the PDIA3Q481K variant is likely pathogenic and its overexpression in mice recapitulate some ALS features, further supporting the concept that altered proteostasis due to PDI dysfunction may predispose an individual to develop the disease.

OBJECTIVES:Although cardiogenic shock requiring extracorporeal life support after cardiac surgery is associated with high mortality, the impact of sex on outcomes of postcardiotomy extracorporeal life support remains unclear with conflicting results in the literature. We compare patient characteristics, in-hospital outcomes, and overall survival between females and males requiring postcardiotomy extracorporeal life support. METHODS:This retrospective, multicenter (34 centers), observational study included adults requiring postcardiotomy extracorporeal life support between 2000 and 2020. Preoperative, procedural, and extracorporeal life support characteristics, complications, and survival were compared between females and males. Association between sex and in-hospital survival was investigated through mixed Cox proportional hazard models. RESULTS:This analysis included 1823 patients (female: 40.8%; median age: 66.0 years [interquartile range, 56.2-73.0 years]). Females underwent more mitral valve surgery (females: 38.4%, males: 33.1%, P = .019) and tricuspid valve surgery (feamales: 18%, males: 12.4%, P < .001), whereas males underwent more coronary artery surgery (females: 45.9%, males: 52.4%, P = .007). Extracorporeal life support implantation was more common intraoperatively in feamales (females: 64.1%, females: 59.1%) and postoperatively in males (females: 35.9%, males: 40.9%, P = .036). Ventricular unloading (females: 25.1%, males: 36.2%, P < .001) and intra-aortic balloon pumps (females: 25.8%, males: 36.8%, P < .001) were most frequently used in males. Females had more postoperative right ventricular failure (females: 24.1%, males: 19.1%, P = .016) and limb ischemia (females: 12.3%, males: 8.8%, P = .23). In-hospital mortality was 64.9% in females and 61.9% in males (P = .199) with no differences in 5-year survival (females: 20%, 95% CI, 17-23; males: 24%, 95% CI, 21-28; P = .069). Crude hazard ratio for in-hospital mortality in females was 1.12 (95% CI, 0.99-1.27; P = .069) and did not change after adjustments. CONCLUSIONS:This study demonstrates that female and male patients requiring postcardiotomy extracorporeal life support have different preoperative and extracorporeal life support characteristics, as well as complications, without a statistical difference in in-hospital and 5-year survivals.

Cerebral perfusion may change depending on arterial cannulation site and may affect the incidence of neurologic adverse events in post-cardiotomy extracorporeal life support (ECLS). The current study compares patients' neurologic outcomes with three commonly used arterial cannulation strategies (aortic vs. subclavian/axillary vs. femoral artery) to evaluate if each ECLS configuration is associated with different rates of neurologic complications. This retrospective, multicenter (34 centers), observational study included adults requiring post-cardiotomy ECLS between January 2000 and December 2020 present in the Post-Cardiotomy Extracorporeal Life Support (PELS) Study database. Patients with Aortic, Subclavian/Axillary and Femoral cannulation were compared on the incidence of a composite neurological end-point (ischemic stroke, cerebral hemorrhage, brain edema). Secondary outcomes were overall in-hospital mortality, neurologic complications as cause of in-hospital death, and post-operative minor neurologic complications (seizures). Association between cannulation and neurological outcomes were investigated through linear mixed-effects models. This study included 1897 patients comprising 26.5

OBJECTIVES:Post-cardiotomy extracorporeal life support (ECLS) cannulation might occur in a general post-operative ward due to emergent conditions. Its characteristics have been poorly reported and investigated This study investigates the characteristics and outcomes of adult patients receiving ECLS cannulation in a general post-operative cardiac ward. METHODS:The Post-cardiotomy Extracorporeal Life Support (PELS) is a retrospective (2000-2020), multicenter (34 centers), observational study including adult patients who required ECLS for post-cardiotomy shock. This PELS sub-analysis analyzed patients´ characteristics, in-hospital outcomes, and long-term survival in patients cannulated for veno-arterial ECLS in the general ward, and further compared in-hospital survivors and non-survivors. RESULTS:The PELS study included 2058 patients of whom 39 (1.9%) were cannulated in the general ward. Most patients underwent isolated coronary bypass grafting (CABG, n = 15, 38.5%) or isolated non-CABG operations (n = 20, 51.3%). The main indications to initiate ECLS included cardiac arrest (n = 17, 44.7%) and cardiogenic shock (n = 14, 35.9%). ECLS cannulation occurred after a median time of 4 (2-7) days post-operatively. Most patients' courses were complicated by acute kidney injury (n = 23, 59%), arrhythmias (n = 19, 48.7%), and postoperative bleeding (n = 20, 51.3%). In-hospital mortality was 84.6% (n = 33) with persistent heart failure (n = 11, 28.2%) as the most common cause of death. No peculiar differences were observed between in-hospital survivors and nonsurvivors. CONCLUSIONS:This study demonstrates that ECLS cannulation due to post-cardiotomy emergent adverse events in the general ward is rare, mainly occurring in preoperative low-risk patients and after a postoperative cardiac arrest. High complication rates and low in-hospital survival require further investigations to identify patients at risk for such a complication, optimize resources, enhance intervention, and improve outcomes.

The need to move a patient connected to ECMO for X-rays or to undergo non-cardiac surgery is quite common.In this article, we provide management details that may be most useful for an anesthesiologist to deal with this situation.

BACKGROUND:Critical care of patients on extracorporeal membrane oxygenation (ECMO) with acute brain injury (ABI) is notable for a lack of high-quality clinical evidence. Here, we offer guidelines for neurological care (neurological monitoring and management) of adults during and after ECMO support. METHODS:These guidelines are based on clinical practice consensus recommendations and scientific statements. We convened an international multidisciplinary consensus panel including 30 clinician-scientists with expertise in ECMO from all chapters of the Extracorporeal Life Support Organization (ELSO). We used a modified Delphi process with three rounds of voting and asked panelists to assess the recommendation levels. RESULTS:We identified five key clinical areas needing guidance: (1) neurological monitoring, (2) post-cannulation early physiological targets and ABI, (3) neurological therapy including medical and surgical intervention, (4) neurological prognostication, and (5) neurological follow-up and outcomes. The consensus produced 30 statements and recommendations regarding key clinical areas. We identified several knowledge gaps to shape future research efforts. CONCLUSIONS:The impact of ABI on morbidity and mortality in ECMO patients is significant. Particularly, early detection and timely intervention are crucial for improving outcomes. These consensus recommendations and scientific statements serve to guide the neurological monitoring and prevention of ABI, and management strategy of ECMO-associated ABI.

OBJECTIVES:Most post-cardiotomy (PC) extracorporeal membrane oxygenation (ECMO) runs last less than 7 days. Studies on the outcomes of longer runs have provided conflicting results. This study investigates patient characteristics and short- and long-term outcomes in relation to PC ECMO duration, with a focus on prolonged (> 7 d) ECMO. DESIGN:Retrospective observational cohort study. SETTING:Thirty-four centers from 16 countries between January 2000 and December 2020. PATIENTS:Adults requiring post PC ECMO between 2000 and 2020. INTERVENTIONS:None. MEASUREMENTS AND MAIN RESULTS:Characteristics, in-hospital, and post-discharge outcomes were compared among patients categorized by ECMO duration. Survivors and nonsurvivors were compared in the subgroup of patients with ECMO duration greater than 7 days. The primary outcome was in-hospital mortality. Two thousand twenty-one patients were included who required PC ECMO for 0-3 days ( n = 649 [32.1%]), 4-7 days ( n = 776 [38.3%]), 8-10 days ( n = 263 [13.0%]), and greater than 10 days ( n = 333 [16.5%]). There were no major differences in the investigated preoperative and procedural characteristics among ECMO duration groups. However, the longer ECMO duration category was associated with multiple complications including bleeding, acute kidney injury, arrhythmias, and sepsis. Hospital mortality followed a U-shape curve, with lowest mortality in patients with ECMO duration of 4-7 days ( n = 394, 50.8%) and highest in patients with greater than 10 days ECMO support ( n = 242, 72.7%). There was no significant difference in post-discharge survival between ECMO duration groups. In patients with ECMO duration greater than 7 days, age, comorbidities, valvular diseases, and complex procedures were associated with nonsurvival. CONCLUSIONS:Nearly 30% of PC ECMO patients were supported for greater than 7 days. In-hospital mortality increased after 7 days of support, especially in patients undergoing valvular and complex surgery, or who had complications, although the long-term post-discharge prognosis was comparable to PC ECMO patients with shorter support duration.