Application Of Extracorporeal Membrane Oxygenation Research Articles

Storytelling of Myocarditis.

In 1900, Fiedler first reported autopsy cases with peculiar inflammation of the myocardium, which he named interstitial myocarditis. He postulated an isolated cardiac inflammation of the myocardium in the absence of multiorgan involvement and with a poor prognosis due to invisible microorganisms, which years later would have been identified as viruses. The revision of original histologic sections by Schmorl showed cases with lymphocytes and others with giant-cell inflammatory histotypes. The in vivo diagnosis of myocarditis became possible thanks to right cardiac catheterization with endomyocardial biopsy (EMB). The gold standard for diagnosis was achieved with the employment of immunohistochemistry and molecular investigation by Polymerase Chain Reaction (PCR), which allows for the detection of viruses as causal agents. Both RNA and DNA were revealed to be cardiotropic, with a common receptor (CAR). A protease, coded by coxsackie virus, disrupts the cytoskeleton and accounts for cell death. Unfortunately, vaccination, despite having been revealed to be effective in animal experiments, has not yet entered the clinical field for prevention. Cardiac Magnetic Resonance turned out to be a revolutionary tool for in vivo diagnosis through the detection of edema (inflammatory exudate). Myocarditis may be fulminant in terms of clinical presentation but not necessarily fatal. The application of ExtraCorporeal Membrane Oxygenation (ECMO) allows for relieving the overloaded native heart.

Clinical Application of Extracorporeal Membrane Oxygenation in the Treatment of Fulminant Myocarditis

Clinical Application of Extracorporeal Membrane Oxygenation in the Treatment of Fulminant Myocarditis

Survival and neurological function in patients treated with extracorporeal membrane oxygenation and therapeutic hypothermia: a protocol for updating a systematic review

IntroductionThe widespread application of extracorporeal membrane oxygenation (ECMO) has enhanced clinical outcomes for patients experiencing cardiac arrest. However, its effectiveness is still limited and falls short of the desired level....

The application of extracorporeal membrane oxygenation in emergent airway management - a single-center retrospective study

BackgroundEmergent airway occurrences pose a significant threat to patient life. Extracorporeal membrane oxygenation (ECMO) has been proven to be an effective method for managing emergent airways.MethodsA retrospective analysis was conducted on all patients receiving ECMO as an adjunct for emergent airway management from January 2018 to December 2022 at the People’s Hospital of Zhongshan City. We collected the basic information of the patients, their blood gas data before and after ECMO, the related parameters of ECMO, and the outcome and then analyzed and summarized these data.ResultsSix patients, with an average age of 51.0(28–66) years, received veno-venous (VV)- ECMO as an adjunct due to emergent airway issues. The average ECMO support duration was 30.5(11–48) hours. All six patients were successfully weaned off ECMO support, with five (83.3%) being successfully discharged after a hospital stay of 15.5(7–55) days. All six patients underwent VV-ECMO through femoral-internal jugular vein cannulation. Among these, five patients, whose airway obstruction was due to hemorrhage, underwent a non-anticoagulant ECMO strategy with no recorded thrombotic events.ConclusionsThe rapid establishment of ECMO support is aided by the establishment of a standardized ECMO initiation protocol and the formation of a multidisciplinary rapid-response ECMO team, which is particularly crucial for emergent airway management. When airway obstruction results from hemorrhagic factors, the early adoption of a non-anticoagulant ECMO strategy can be considered when implementing VV-ECMO.

Current status of ECMO for massive pulmonary embolism.

Massive pulmonary embolism (MPE) carries significant 30-day mortality and is characterized by acute right ventricular failure, hypotension, and hypoxia, leading to cardiovascular collapse and cardiac arrest. Given the continued high mortality associated with MPE, there has been ongoing interest in utilizing extracorporeal membrane oxygenation (ECMO) to provide oxygenation support to improve hypoxia and offload the right ventricular (RV) pressure in the belief that rapid reduction of hypoxia and RV pressure will improve outcomes. Two modalities can be employed: Veno-arterial-ECMO is a reliable process to decrease RV overload and improve RV function, thus allowing for hemodynamic stability and restoration of tissue oxygenation. Veno-venous ECMO can support oxygenation but is not designed to help circulation. Several societal guidelines now suggest using ECMO in MPE with interventional therapy. There are three strategies for ECMO utilization in MPE: bridge to definitive interventional therapy, sole therapy, and recovery after interventional treatment. The use of ECMO in MPE has been associated with lower mortality in registry reviews, but there has been no significant difference in outcomes between patients treated with and without ECMO in meta-analyses. Considerable heterogeneity in studies is a significant weakness of the available literature. Applying ECMO is also associated with substantial multisystem morbidity due to a systemic inflammatory response, hemorrhagic stroke, renal dysfunction, and bleeding, which must be factored into the outcomes. The application of ECMO in MPE should be combined with an aggressive pulmonary interventional program and should strictly adhere to the current selection criteria.

A 16-year-old man with leptospirosis and atypical disseminated intravascular coagulation: a case report

BackgroundLeptospirosis is known for its pulmonary form characterized by intra-alveolar hemorrhage, exhibiting a high mortality rate. Management by venous–venous extracorporeal membrane oxygenation has been reported in a small number of cases.Case presentationWe report herein the case of a 16-year-old Caucasian male who was admitted with rapidly deteriorating respiratory and digestive complaints. He developed severe acute respiratory distress syndrome secondary to disseminated intravascular coagulation and intra-alveolar hemorrhage, requiring initiation of venous–venous extracorporeal membrane oxygenation. Initial infectious and immunological assessments were inconclusive, but repeat serology on the tenth day of admission confirmed a diagnosis of leptospirosis. The patient received multiple transfusions, and upon favorable response to treatment with corticosteroids and antibiotics, he was successfully weaned off venous–venous extracorporeal membrane oxygenation, which was discontinued after 12 days.ConclusionLeptospirosis is a rare cause of severe acute respiratory failure following pulmonary hemorrhage. It is typically diagnosed by serology, with detectable IgM antibodies 5–7 days after the onset of symptoms. We report that early support with respiratory extracorporeal membrane oxygenation favors timely clearance of endobronchial clotting, parenchymal recovery, and prevention of ventilator-induced lung injury. Major hypofibrinogenemia, which did not seem to worsen during extracorporeal membrane oxygenation application, was managed by repeated transfusions. Further studies investigating the pathogenesis of this coagulopathy are required to further optimize the management of this rare and severe complication.

Some aspects of the extracorporeal membrane oxygenation usage in out-ofhospital cardiac arrest. Review

The review of foreign medical periodicals presents some aspects of the application of extracorporeal membrane oxygenation during resuscitation in patients with out-of-hospital cardiac arrest.

Two cases of extracorporeal membrane oxygenation for ventilator-dependent infants with bronchopulmonary dysplasia and pulmonary hypertension

Bronchopulmonary dysplasia (BPD) and pulmonary hypertension (PH) are potentially fatal complications in prematurely born infants. Extracorporeal membrane oxygenation (ECMO) may be a life-saving option for managing infants with BPD and PH. We present 2 patients who were successfully weaned off mechanical ventilators (MVs) through the application of ECMO. The patients were transferred to our institution after receiving MV care for 8 and 10 months, respectively, for BPD and PH. We were able to remove the patients from MVs after a period of ECMO-mediated lung rest. Although more research is required to determine specific criteria for ECMO use in patients with BPD and PH, our clinical experiences may contribute to the early application of ECMO in MV-dependent patients.

Tracheostomy in high-risk patients on ECMO: A bedside hybrid dilational technique utilizing a Rummel tourniquet

ObjectiveTraditionally, critically ill patients requiring prolonged mechanical ventilation benefit from a long-term airway, thus necessitating tracheostomy. The widespread application of extracorporeal membrane oxygenation (ECMO) has exponentially increased in recent years, creating a new subset of patients necessitating tracheostomy with significantly increased bleeding risk. We present a hybrid dilational tracheostomy technique utilizing a Rummel tourniquet developed at our institution to mitigate bleeding risk in patients on ECMO necessitating long-term airway. MethodsA total of 24 patients on ECMO underwent bedside hybrid dilational tracheostomy with utilization of a Rummel tourniquet from 06/2020 to 01/2022 at our institution. These patients were followed longitudinally and evaluated for postoperative bleeding. Particular attention was paid to anticoagulation regimens pre- and post-operatively. ResultsThe primary outcome of the study, postoperative bleeding, was observed in four of the 24 study participants (16.67 %). Each of these complications were managed with tightening of the Rummel tourniquet and application of hemostatic packing agents; no operative interventions were required. Anticoagulation was held for a mean time of 4.33 h preoperatively and 5.2 h postoperatively. ConclusionsOur data support this hybrid tracheostomy technique with the addition of a Rummel tourniquet to be a safe and effective adjunct for perioperative hemostasis in high-risk patients necessitating tracheostomy while on ECMO. While this technique was initially developed for critically ill COVID-19 patients, we believe it can be applied to all patients on ECMO to help mitigate perioperative bleeding risk.

Standardized nomenclature for peripheral percutaneous cannulation of the pulmonary artery in extracorporeal membrane oxygenation: Current uptake and recommendations for improvement.

The rising application of extracorporeal membrane oxygenation (ECMO) has emphasized the need for consistent and standardized terminology, especially concerning peripheral percutaneous cannulation of the pulmonary artery (PPC-PA). The Extracorporeal Life Support Organization (ELSO) Nomenclature Task Force produced the ELSO Maastricht Treaty for extracorporeal life support (ECLS) Nomenclature to address this challenge. However, adherence to nomenclature recommendations has been poor in publications describing PPC-PA. We aim to describe common nomenclature errors and provide a user-guide for abbreviations that can be used by authors, reviewers, and journal staff to ensure properadherence to standardized nomenclature in publications describing PPC-PA.

Long-term clinical outcomes in patients with acute myocardial infarction complicated by cardiogenic shock according to the application and initiation time of extracorporeal membrane oxygenation in South Korea.

Limited data are available regarding the proper application time and long-term outcomes of extracorporeal membrane oxygenation (ECMO) in patients with cardiogenic shock. This cohort study appraised the clinical outcomes according to ECMO application without or before cardiopulmonary resuscitation (CPR) in patients with acute myocardial infarction (AMI) combined with cardiogenic shock. Between 2011 and 2015, a total of 13,104 patients with AMI were enrolled in a nationwide AMI registry. Eligible patients with cardiogenic shock, who underwent percutaneous coronary intervention, with a 3-year clinical follow-up, were analyzed. The 949 included patients were divided into two groups: no ECMO (n = 845) and ECMO application (n = 104). The ECMO group was further divided into ECMO without or before CPR (n = 11) and ECMO after CPR (n = 93). Significant differences were noted in major adverse cardiac events (MACEs) between the no ECMO and ECMO application groups during the 3-year follow-up (41.5% vs. 80.8%; p < 0.001). However, the ECMO without or before CPR group showed similar outcomes to the no ECMO group in 3-year MACEs (63.6% vs. 41.5%; p = 0.055). MACEs during 3 years of follow-up were significantly lower in the ECMO without or before CPR group than in the ECMO after CPR group (63.6% vs. 82.8%; p = 0.005). A significantly lower risk of major cardiac events in ECMO without or before CPR suggests that early application of ECMO can be a reasonable strategy to improve outcomes in patients with AMI complicated by cardiogenic shock.

Update on Anticoagulation Strategies in Patients with ECMO-A Narrative Review.

The use of extracorporeal membrane oxygenation (ECMO) has recently increased exponentially. ECMO has become the preferred mode of organ support in refractory respiratory or circulatory failure. The fragile balance of haemostasis physiology is massively altered by the patient's critical condition and specifically the aetiology of the underlying disease. Furthermore, an application of ECMO conveys another disturbance of haemostasis due to blood-circuit interaction and the presence of an oxygenator. The purpose of this review is to summarise current knowledge on the anticoagulation management in patients undergoing ECMO therapy. The unfractionated heparin modality with monitoring of activated partial thromboplastin tests is considered to be a gold standard for anticoagulation in this specific subgroup of intensive care patients. However, alternative modalities with other agents are comprehensively discussed. Furthermore, other ways of monitoring can represent the actual state of coagulation in a more complex fashion, such as thromboelastometric/graphic methods, and might become more frequent. In conclusion, the coagulation system of patients with ECMO is altered by multiple variables, and there is a significant lack of evidence in this area. Therefore, a highly individualised approach is the best solution today.

A comparative assessment of open and laparoscopic techniques in managing congenital diaphragmatic hernias in newborns

Introduction. The authors share their experience in managing congenital diaphragmatic hernias (CDH) in newborns with open and thoracoscopic techniques.Material and methods. From 2012 to 2022, 46 newborns with CDH were admitted to Kuraev Children’s Republican Clinical Hospital in Makhachkala (Russia). 5 children died before surgery, they were excluded from the study. In order to compare outcomes after treatment, all children operated on by the authors were divided into two groups depending on the technique of surgical CDH correction. Newborns from Group 1 (n = 23; 56%) were operated with open access. Newborns from Group 2 (n = 18; 44%) were operated with thoracoscopic access.Results. A comparative evaluation of outcomes after thoracoscopic and open techniques for correcting CDH was made. By the literature, the overall survival rate of children with CDH has increased from 50–60% to 80–90%. The author consider, that it is largely due to the application of extracorporeal membrane oxygenation (ECMO) and nitric oxide to compensate pulmonary hypertension which is the main factor decreasing the postoperative mortality. In this case, physicians prescribed Sildenafil; the survival rate in Group 1 was 48% and in Group 2 – 67%. The authors noted that the mortality rate depended on the size of diaphragm dome defect, on the number of abdominal organs in the pleural cavity. Besides, the place where a child was operated on – in the resuscitation department or not – was also an important factor.Conclusion. Thoracoscopy is a preferred approach for managing CDH because it does not need dissection of a large array of muscles; otherwise, later, in the postoperative period, it can impair the respiratory function. Early postoperative mortality in newborns is caused by hemodynamic disorders, so it is recommended to perform surgical interventions in this group of patients in the resuscitation department. To prevent hemodynamic disorders, it is recommended to install a pleural drainage intraoperatively in all patients with CDH. The authors underline that in their study postoperative course, rate of intraoperative and postoperative complications, as well as mortality rate did not have any statistically significant differences in the compared groups (p0.05). Despite a marked progress in CDH management, large diaphragm defects still is an unsolved problem.

Predictors of Mortality in Extracorporeal Membrane Oxygenation Support Patients Following Major Trauma

IntroductionThe usage of extracorporeal membrane oxygenation (ECMO) in trauma patients has increased significantly within the past decade. Despite increased research on ECMO application in trauma patients, there remains limited data on factors predicting morbidity and mortality outcome. Therefore, the primary objective of this study is to describe patient characteristics that are independently associated with mortality in ECMO therapy in trauma patients, to further guide future research. MethodsThis retrospective study was conducted using the Trauma Quality Improvement Program database from 2010 to 2019. All adult (age ≥ 16 y) trauma patients that utilized ECMO were included. A Significant differences (P < 0.05) in demographic and clinical characteristics between groups were calculated using an independent t-test for normal distributed continuous values, a Mann-Whitney U test for non-normal distributed values, and a Pearson chi-square test for categorical values. A multivariable regression model was used to identify independent predictors for mortality. A survival flow chart was constructed by using the strongest predictive value for mortality and using the optimal cut-off point calculated by the Youden index. ResultsFive hundred forty-two patients were included of whom 205 died. Multivariable analysis demonstrated that the female gender, ECMO within 4 h after presentation, a decreased Glasgow Coma Scale, increased age, units of blood in the first 4 h, and abbreviated injury score for external injuries were independently associated with mortality in ECMO trauma patients. It was found that an external abbreviated injury score of ≥3 had the strongest predictive value for mortality, as patients with this criterion had an overall 29.5% increased risk of death. ConclusionsThere is an ongoing increasing trend in the usage of ECMO in trauma patients. This study has identified multiple factors that are individually associated with mortality. However, more research must be done on the association between mortality and noninjury characteristics like Pao2/Fio2 ratio, acute respiratory distress syndrome classification, etc. that reflect the internal state of the patient.

Mixed matrix membranes (MMMs) comprising the CO2-Philic wavelike layer of hydrogen-bonded organic frameworks (HOFs) for highly efficient blood oxygenation

Oxygenation efficiency from extracorporeal membrane oxygenation (ECMO) is hindered by membrane resistance and CO2/O2 selectivity in the process of gas transport through membrane. Herein, we designed a mixed matrix membrane (MMM) as an artificial lung membrane, which was prepared by blending polyphenylene oxide (PPO) with hydrogen-bonded organic frameworks (HOFs) named PFC-11. The interface interactions showed that PFC-11 and PPO had good interfacial compatibility and formed a uniform structure with great mechanical properties. The addition of PFC-11 provided additional gas transport channels for MMMs, and the special groups and atoms in the channels promoted the diffusion of CO2. The gas permeance and CO2/O2 selectivity of MMMs were effectively improved. The oxygenation performance test and liquid entry pressure measurement proved that PPO/PFC-11 MMMs had sufficient oxygenation capacity and excellent wetting-resistant ability to meet the actual ECMO application. The hemocompatibility of MMMs was evaluated by hemolysis rate and blood cell adhesion. The PPO/PFC-11 MMMs exhibited excellent performance for ECMO and provided a novel direction for the research and development of efficient artificial lung membranes.

ОПЫТ ИСПОЛЬЗОВАНИЯ ЭКСТРАКОРПОРАЛЬНОЙ МЕМБРАННОЙ ОКСИГЕНАЦИИ У ПАЦИЕНТА С ИНГАЛЯЦИОННЫМ ОТРАВЛЕНИЕМ СОЕДИНЕНИЯМИ ФТОРА

Throughout the history of mankind, technological progress has not stood still, but, unfortunately, the production and discoveries that the age of progress brings to us always go hand in hand with an industrial injury. Despite the fact that over the past decades, the requirements and control of compliance with safety regulations have significantly increased, yet sometimes accidents occur that can take more than one human life. Work involving the risk of inhalation poisoning with particularly dangerous chemical compounds, which can lead to severe systemic and respiratory damage, is particularly dangerous for humans. According to the Federation of Independent Trade Unions of Russia, chemical poisoning accounts for 21.93% of all industrial injuries. Depending on the damaging agent, duration and area of exposure, all victims need a certain amount and specifics of assistance, which often requires prosthetics of several affected body systems, including using extracorporeal technologies. We present a clinical case of the successful application of extracorporeal membrane oxygenation (ECMO) methods in the complex therapy of inhalation poisoning with hydrofluoric acid vapors received by a patient as a result of an industrial accident. Based on the lack of clear clinical recommendations for the treatment of inhalation poisoning of this etiology, the method of extracorporeal membrane oxygenation and respiratory protection for volumetric lung tissue damage in complex therapy has shown its effectiveness and prospects that require further study.

Prognosis of Venoarterial Extracorporeal Membrane Oxygenation in Mixed, Cardiogenic and Septic Shock.

Mixed cardiogenic-septic shock (MS), defined as the combination of cardiogenic (CS) and septic (SS) shock, is often encountered in cardiac intensive care units. Herein, the authors compared the impact of venoarterial extracorporeal membrane oxygenation (VA-ECMO) in MS, CS, and SS. Of 1,023 patients who received VA-ECMO from January 2012 to February 2020 at a single center, 211 with pulmonary embolism, hypovolemic shock, aortic dissection, and unknown causes of shock were excluded. The remaining 812 patients were grouped based on the cause of shock at VA-ECMO application: i) MS (n = 246, 30.3%), ii) CS (n = 466, 57.4%), iii) SS (n = 100, 12.3%). The MS group was younger and had lower left ventricular ejection fraction than the CS or SS group did. The 30 day and 1 year mortalities were the highest in SS (30 day mortality: 50.4% vs. 43.3% vs. 69.0%, p < 0.001 for MS versus CS versus SS, respectively; 1 year mortality: 67.5% vs. 53.2% vs. 81.0%, p < 0.001 for MS versus CS versus SS, respectively). Posthoc analysis showed that the 30 day mortality of MS was not different from CS, while the 1 year mortality of MS was worse than CS but better than SS. Venoarterial extracorporeal membrane oxygenation application for MS may help improve survival and should therefore be considered if indicated.

Extracorporeal Membrane Oxygenation use on Liver Transplantation: An Integrative Review

Objective: To review the applicability of extracorporeal membrane oxygenation (ECMO) during the pre, intra and postoperative periods of patients undergoing liver transplantation. Methods: This is an integrative review that seeks to evaluate the indications for the use of ECMO in liver transplantation. As databases, were used: MEDLINE, Web of Science and Scopus, with articles published in the last ten years in English and Portuguese. Results: In this review, 24 papers were included, of which 3 were original articles and 21 were case reports. The studies were divided according to the ECMO application period concerning the liver transplant: one for the preoperative, eight intraoperative and 15 postoperative. It was identified that ECMO use is mainly related to hepatopulmonary syndrome complications. The limited number of studies regarding using ECMO in the preoperative period reflects the importance of hepatic transplant as the main measure to manage liver disease complications. In the intraoperative phase, ECMO usage is expressive in managing cardiopulmonary complications refractory to previous interventions. The use of this mechanism in the postoperative period is the most reported. The main indication is severe hypoxemia secondary to hepatopulmonary syndrome, in which other treatments have been ineffective. The main complications related to this mechanism were sepsis, renal failure and bleeding. Conclusion: ECMO is an important therapeutic modality for managing complications resulting from liver transplantation. However, only some studies in the literature have an adequate sample number to assess its actual efficacy and level of safety.

Extracorporeal membrane oxygenation for general thoracic surgery: case series and narrative review.

Extracorporeal membrane oxygenation (ECMO) has historically been utilized as a temporary life support option for patients with severe cardiac and pulmonary dysfunction. Recent advancements have enabled the safe application of ECMO in a wider variety of patients; we present a review of its use in patients undergoing general thoracic procedures supported by a case series at our institution. We review current literature focusing on ECMO applications in thoracic surgery outside of the traditional use. Additionally, we offer three cases of ECMO utilization to illustrate success stories and key lessons learned regarding the use of ECMO in general thoracic surgery. Technologic advancements and enhanced safety profiles have enabled the safe application of ECMO in a wide array of patients far beyond the historic indications of cardiogenic shock and acute respiratory distress syndrome (ARDS). It is now feasible to consider ECMO for management of acute thoracic emergencies, as well as to better facilitate operative safety in complex general thoracic surgical procedures. Both venovenous and venoarterial ECMO can be utilized in carefully selected patients to provide cardiopulmonary support while enabling improved visualization and increased mobilization without concern for respiratory and/or cardiac compromise. Enthusiasm for the use of ECMO has increased in recent years. What was once considered a salvage therapy in cases of life-threatening cardiopulmonary decompensation now plays an increasingly important role in the safe conduct of complex thoracic surgery procedures, provides much needed time for organ recovery, and offers acute resuscitation options. This shift broadens our ability to deliver life-saving care to patients that previously would have otherwise had limited treatment options.

Clinical nursing of predictive application of extracorporeal membrane oxygenation in the treatment of 3 patients with fulminant myocarditis

Clinical nursing of predictive application of extracorporeal membrane oxygenation in the treatment of 3 patients with fulminant myocarditis