Extracorporeal Membrane Oxygenation

2018 ◽  
Author(s):  
Julian Villar ◽  
Stephen Ruoss ◽  
Richard HA ◽  
Joe Hsu

Extracorporeal membrane oxygenation (ECMO), also known as extracorporeal life support, is the practice of using circulatory assist devices and a gas exchange system to maintain sufficient tissue oxygen delivery, supplementing pulmonary and/or cardiac function in patients whose native physiology is too severely altered to be successfully supported solely by conventional life support techniques (eg, mechanical ventilation and inotropic and vasopressor drugs). ECMO should be considered in patients who are at a high risk of death due to a potentially reversible etiology of cardiopulmonary collapse. Indications for ECMO can be broadly divided into profound respiratory failure and/or cardiogenic shock. The indications include acute respiratory distress syndrome, heart failure, postoperative cardiogenic shock, and as an adjunct to cardiopulmonary resuscitation in patients with cardiac arrest. ECMO is currently experiencing a renaissance, and familiarity with its concepts is important for all critical care practitioners. This review contains 8 figures, 8 tables and 34 references Key Words: complications, equipment, indications, management basics, outcomes

2018 ◽  
Author(s):  
Julian Villar ◽  
Stephen Ruoss ◽  
Richard HA ◽  
Joe Hsu

Extracorporeal membrane oxygenation (ECMO), also known as extracorporeal life support, is the practice of using circulatory assist devices and a gas exchange system to maintain sufficient tissue oxygen delivery, supplementing pulmonary and/or cardiac function in patients whose native physiology is too severely altered to be successfully supported solely by conventional life support techniques (eg, mechanical ventilation and inotropic and vasopressor drugs). ECMO should be considered in patients who are at a high risk of death due to a potentially reversible etiology of cardiopulmonary collapse. Indications for ECMO can be broadly divided into profound respiratory failure and/or cardiogenic shock. The indications include acute respiratory distress syndrome, heart failure, postoperative cardiogenic shock, and as an adjunct to cardiopulmonary resuscitation in patients with cardiac arrest. ECMO is currently experiencing a renaissance, and familiarity with its concepts is important for all critical care practitioners. This review contains 8 figures, 8 tables and 34 references Key Words: complications, equipment, indications, management basics, outcomes


Perfusion ◽  
2019 ◽  
Vol 35 (3) ◽  
pp. 246-254
Author(s):  
Mariusz Kowalewski ◽  
Giuseppe Raffa ◽  
Kamil Zieliński ◽  
Paolo Meani ◽  
Musab Alanazi ◽  
...  

Objective: While reported mortality rates on post-cardiotomy extracorporeal membrane oxygenation vary from center to center, impact of baseline surgical status (elective/urgent/emergency/salvage) on mortality is still unknown. Methods: A systematic search was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement using PubMed/Medline databases until March 2018 using the keywords “postcardiotomy,” “cardiogenic shock,” “extracorporeal membrane oxygenation,” and “extracorporeal life support.” Relevant articles were scrutinized and included in the meta-analysis only if reporting in-hospital/30-day mortality and baseline surgical status. The correlations between mortality and percentage of elective/urgent/emergency cases were investigated. Inference analysis of baseline status and extracorporeal membrane oxygenation complications was conducted as well. Results: Twenty-two studies (conducted between 1993 and 2017) enrolling N = 2,235 post-cardiotomy extracorporeal membrane oxygenation patients were found. Patients were mostly of non-emergency status (65.2%). Overall in-hospital/30-day mortality event rate (95% confidence intervals) was 66.7% (63.3-69.9%). There were no differences in in-hospital/30-day mortality with respect to baseline surgical status in the subgroup analysis (test for subgroup differences; p = 0.406). Similarly, no differences between mortality in studies enrolling <50 versus ⩾50% of emergency/salvage cases was found: respective event rates were 66.9% (63.1-70.4%) versus 64.4% (57.3-70.8%); p = 0.525. Yet, there was a significant positive association between increasing percentage of emergency/salvage cases and rates of neurological complications (p < 0.001), limb complications (p < 0.001), and bleeding (p = 0.051). Incidence of brain death (p = 0.099) and sepsis (p = 0.134) was increased as well. Conclusion: Other factors than baseline surgical status may, to a higher degree, influence the mortality in patients treated with extracorporeal membrane oxygenation for post-cardiotomy cardiogenic shock. Baseline status, however, strongly influences the complication occurrence while on extracorporeal membrane oxygenation.


2020 ◽  
Vol 4 (2) ◽  
pp. 1-5
Author(s):  
Bebiana Manuela Monteiro Faria ◽  
João Português ◽  
Roberto Roncon-Albuquerque Jr ◽  
Rodrigo Pimentel

Abstract Background Takotsubo syndrome (TS) is characterized by a transient left ventricular (LV) dysfunction and rarely presents with cardiogenic shock (CS). Inverted TS (ITS) is a rare entity associated with the presence of a pheochromocytoma. Case summary We present a case of a young woman was admitted to the emergency department due to intense headache, chest discomfort, palpitations, and breathlessness. An ITS secondary to a pheochromocytoma crisis presenting with CS was diagnosed. The patient was managed with veno-arterial extracorporeal membrane oxygenation, until recovery of LV function. On the 35th day of hospitalization, open bilateral adrenalectomy was performed. Discussion Takotsubo syndrome patients presenting with CS are challenging and clinicians should be aware of underlying causes. Specific triggers such as pheochromocytoma should systematically be considered particularly if ITS was presented. Extracorporeal life support devices could provide temporary mechanical circulatory support in patients with TS on refractory CS and help to manage complex cases with TS due to pheochromocytoma.


2019 ◽  
Vol 76 (9) ◽  
pp. 955-959 ◽  
Author(s):  
Ilija Srdanovic ◽  
Mila Kovacevic ◽  
Maja Stefanovic ◽  
Milovan Petrovic ◽  
Milenko Cankovic ◽  
...  

Introduction. Management of cardiogenic shock caused by severe drug intoxication is always challenging. In case of multidrug intoxication, a result, despite aggressive medical therapy, is often unpredictable. Utilization of extracorporeal life support devices in these cases has been suggested and reported results are promising. Case report. We presented a case of profound cardiogenic and distributive shock caused by suicidal intoxication with diltiazem and anionic surfactant ingestion in a 36-year-old woman. The patient ingested more than 90 tablets of diltiazem of 90 mg (ingested dose of 8.1 g), and 4 pieces of household toilet refresh agent containing anionic surfactant. During the admission, systemic blood pressure was 65/40 mmHg, heart rate 45 beats per minute, with signs of metabolic acidosis. The patient underwent several repeated gastric lavages. Emergent fluid resuscitation, calcium gluconate, insulin and vasopressive agents (dopamine and noradrenaline) infusions were administered with negligible effect. Due to progressive and refractory cardiogenic shock with signs of multiorgan failure, a decision was made to put the patient on venoarterial extracorporeal membrane oxygenator. Immediately after starting the extracorporeal membrane oxygenation, diuresis was established. During the next 36 h, an adequate end-organ perfusion was achieved with complete reversal of multiorgan failure. After the successful restoration of all major organ functions, the patient was successfully decannulated and discharged from the hospital after 10 days in a good condition. Conclusion. In severe cases of refractory cardiogenic and distributive shock due to diltiazem and other poison intoxication, venoarterial extracorporeal membrane oxygenation could allow additional circulatory support providing the bonus time for endogenous clearance of toxins. Venoarterial extracorporeal membrane oxygenation could be used in conjunction with the optimal medical therapy aiming to the restoration of end-organ perfusion and allowing for intrinsic drug and toxin metabolism and natural elimination.


2021 ◽  
pp. 089719002110212
Author(s):  
Kalynn A. Northam ◽  
Bobbie Nguyen ◽  
Sheh-Li Chen ◽  
Edward Sredzienski ◽  
Anthony Charles

Background: Anticoagulation monitoring practices vary during extracorporeal membrane oxygenation (ECMO). The Extracorporeal Life Support Organization describes that a multimodal approach is needed to overcome assay limitations and minimize complications. Objective: Compare activated clotting time (ACT) versus multimodal approach (activated partial thromboplastin time (aPTT)/anti-factor Xa) for unfractionated heparin (UFH) monitoring in adult ECMO patients. Methods: We conducted a single-center retrospective pre- (ACT) versus post-implementation (multimodal approach) study. The incidence of major bleeding and thrombosis, blood product and antithrombin III (ATIII) administration, and UFH infusion rates were compared. Results: Incidence of major bleeding (69.2% versus 62.2%, p = 0.345) and thrombosis (23% versus 14.9%, p = 0.369) was similar between groups. Median number of ATIII doses was reduced in the multimodal group (1.0 [IQR 0.0-2.0] versus 0.0 [0.0 -1.0], p = 0.007). The median UFH infusion rate was higher in the ACT group, but not significant (16.9 [IQR 9.6-22.4] versus 13 [IQR 9.6-15.4] units/kg/hr, p = 0.063). Fewer UFH infusion rate changes occurred prior to steady state in the multimodal group (0.9 [IQR 0.3 -1.7] versus 0.1 [IQR 0.0-0.2], p < 0.001). Conclusion: The incidence of major bleeding and thrombosis was similar between groups. Our multimodal monitoring protocol standardized UFH infusion administration and reduced ATIII administration.


Perfusion ◽  
2016 ◽  
Vol 32 (2) ◽  
pp. 151-156 ◽  
Author(s):  
Katherine Cashen ◽  
Roland L Chu ◽  
Justin Klein ◽  
Peter T Rycus ◽  
John M Costello

Introduction: Pediatric patients with hemophagocytic lymphohistiocytosis (HLH) may develop refractory respiratory or cardiac failure that warrants consideration for extracorporeal membrane oxygenation (ECMO) support. The purposes of this study were to describe the use and outcomes of ECMO in pediatric HLH patients, to identify risk factors for hospital mortality and to compare their ECMO use and outcomes to the ECMO population as a whole. Methods: Pediatric patients (⩽ 18 years) with a diagnosis of HLH in the Extracorporeal Life Support Organization (ELSO) Registry were included. Results: Between 1983 and 2014, data for 30 children with HLH were available in the ELSO registry and all were included in this study. All cases occurred in the last decade. Of the 30 HLH patients, 24 (80%) had a respiratory indication for ECMO and six (20%) had a cardiac indication (of which 4 were E-CPR and 2 cardiac failure). Of the 24 respiratory ECMO patients, 63% were placed on VA ECMO. Compared with all pediatric patients in the ELSO registry during the study period (n=17,007), HLH patients had worse hospital survival (non-HLH 59% vs HLH 30%, p=0.001). In pediatric HLH patients, no pre-ECMO risk factors for mortality were identified. The development of a hemorrhagic complication on ECMO was associated with decreased mortality (p=0.01). Comparing HLH patients with respiratory failure to patients with other immune compromised conditions, the overall survival rate is similar (HLH 38% vs. non-HLH immune compromised 31%, p=0.64). Conclusions: HLH is an uncommon indication for ECMO and these patients have increased mortality compared to the overall pediatric ECMO population. These data should be factored into decision-making when considering ECMO for pediatric HLH patients.


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