Lipid peroxidation during initiation of extracorporeal membrane oxygenation after hypoxia in endotoxemic rabbits

Perfusion ◽  
1999 ◽  
Vol 14 (1) ◽  
pp. 49-57 ◽  
Author(s):  
Gerhard Trittenwein ◽  
Alexandre T Rotta ◽  
Björn Gunnarsson ◽  
David M Steinhorn
Keyword(s):  
Lipid Peroxidation ◽  
Oxidative Damage ◽  
Extracorporeal Membrane Oxygenation ◽  
Pulmonary Function ◽  
G Protein ◽  
Lung Tissue ◽  
Control Group ◽  
Factors Affecting ◽  
Membrane Oxygenation ◽  
Venovenous Ecmo

Initiation of extracorporeal membrane oxygenation (ECMO) in septic children with severe respiratory failure often improves oxygenation but not pulmonary function. The factors affecting pulmonary function following onset of ECMO are not completely understood, but are thought to involve injury mediated, in part, by reactive oxygen species. We hypothesized that induction of ECMO using 100% oxygen as the sweep gas through the oxygenator would increase lipid peroxidation in endotoxin-primed animals after severe hypoxia. We further speculated that provision of oxygenated blood to the pulmonary circulation via venovenous ECMO would promote a greater degree of oxidative damage to the lung as compared to venoarterial ECMO. Eighteen New Zealand White rabbits were assigned to a control group (control) or two intervention groups subjected to 60 min of venoarterial or venovenous ECMO. ECMO was initiated following an intravenous challenge with 0.5 mg/kg of E. coli endotoxin and a period of global hypoxia leading to an arterial pH of 6.99 ± 0.09, PaCO2 of 103 ± 31 mmHg and PaO2 of 27 ± 5 mmHg. Malondialdehyde (MDA), a marker of lipid peroxidation, was measured in lung tissue homogenates and in arterial plasma. Lung tissue MDA demonstrated a strong trend towards an increase in the venoarterial group (1884 ± 945 nmol/g protein) and in the venovenous group (1905 ± 758 nmol/g protein) in comparison to the control group (644 ± 71 nmol/g protein) ( p = 0.1; significance at 95% in Scheffe test). Lung tissue MDA in the venovenous group had a significant correlation with mean PaO2 during ECMO by regression analysis ( r2 = 0.678, p = 0.044). The change in blood MDA concentration between pre-ECMO and post-ECMO values was greater in the venovenous group (pre 1.62 ± 0.61 versus post 5.12 ± 0.2.07 μmol/l, p = 0.043) compared with that seen in the venoarterial group (pre 1.46 ± 0.38 versus post 3.9 ± 0.93 μmol/l). Our data support the hypothesis that initiation of ECMO with a circuit gas oxygen concentration of 100% after global hypoxia enhances oxidative damage to lipids in endotoxin-challenged animals. During venovenous ECMO this finding is dependent on PaO2.

Factors affecting the outcome of extracorporeal membrane oxygenation following paediatric cardiac surgery

2019 ◽  
Vol 29 (12) ◽  
pp. 1501-1509 ◽  
Author(s):  
Ahmed M. Dohain ◽  
Gaser Abdelmohsen ◽  
Ahmed A. Elassal ◽  
Ahmed F. ElMahrouk ◽  
Osman O. Al-Radi
Keyword(s):  
Cardiac Surgery ◽  
Extracorporeal Membrane Oxygenation ◽  
Hospital Discharge ◽  
University Hospital ◽  
P Value ◽  
Biventricular Repair ◽  
Factors Affecting ◽  
Membrane Oxygenation ◽  
Paediatric Cardiac Surgery ◽  
Neonates And Infants

AbstractBackground:Extracorporeal membrane oxygenation has been widely used after paediatric cardiac surgery due to increasing complex surgical repairs in neonates and infants having complex CHDs.Materials and methods:We reviewed retrospectively the medical records of all patients with CHD requiring corrective or palliative cardiac surgery at King Abdulaziz University Hospital that needed extracorporeal membrane oxygenation support between November 2015 and November 2018.Results:The extracorporeal membrane oxygenation population was 30 patients, which represented 4% of 746 children who had cardiac surgery during this period. The patients’ age range was from 1 day to 20.33 years, with a median age of 6.5 months. Median weight was 5 kg (range from 2 to 53 kg). Twenty patients were successfully decannulated (66.67%), and 12 patients (40%) were survived to hospital discharge. Patients with biventricular repair tended to have better survival rate compared with those with single ventricle palliation (55.55 versus 16.66%, p-value 0.058). During the first 24 hours of extracorporeal membrane oxygenation support, the flow rate was significantly reduced after 4 hours of extracorporeal membrane oxygenation connection in successfully decannulated patients.Conclusion:Survival to hospital discharge in patients requiring extracorporeal membrane oxygenation support after paediatric cardiac surgery was better in those who underwent biventricular repair than in those who had univentricular palliation. Capillary leak on extracorporeal membrane oxygenation could be a risk of mortality in patients after paediatric cardiac surgery.

scholarly journals Bronchotracheal Stenting Management by Rigid Bronchoscopy under Extracorporeal Membrane Oxygenation (ECMO) Support: 10 Years of Experience in a Tertiary Center

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Sabrina Meyer ◽  
Anne-Sophie Dincq ◽  
Lionel Pirard ◽  
Sebahat Ocak ◽  
Jean-Paul D’Odémont ◽  
...  
Keyword(s):  
Extracorporeal Membrane Oxygenation ◽  
Rigid Bronchoscopy ◽  
Ecmo Support ◽  
Membrane Oxygenation ◽  
Tertiary Center ◽  
Airway Stenting ◽  
Life Threatening ◽  
Venovenous Ecmo ◽  
Central Airway

Purpose. Airway stenting offers good palliation and improves the quality of life in patients with inoperable bronchotracheal stenosis. However, in some cases, the management of stenting can be life-threatening. Hence, a strategy for maintaining oxygenation and hemodynamic stability should be anticipated to avoid critical situations. Herein, we report the use of extracorporeal membrane oxygenation (ECMO) in bronchotracheal stenting management to secure oxygenation and facilitate interventions. Methods. We retrospectively reviewed all patients who underwent rigid bronchoscopy under ECMO support for the management of bronchotracheal stenting at CHU UCL Namur hospital (Belgium), between January 2009 and December 2019. Results. We included 14 bronchoscopy cases performed on 11 patients (3 patients underwent 2 bronchoscopies) in this study; 12 were performed on males and 2 on females. The median age was 54 years. There were 11 benign and 3 malignant etiologies for the central airway obstruction/stenosis. Eight cases were supported by venovenous ECMO and six by venoarterial ECMO. The median ECMO time was 267 minutes. The weaning of ECMO support was successful in all cases. In most cases, the procedures were performed effectively and safely. Only two local complications caused by the cannulation of ECMO were reported, and anticoagulation was adapted to avoid bleeding at the operating site and clot formation in the system. Conclusion. Elective ECMO support was helpful and safe for the high-risk management of bronchotracheal stenting with rigid bronchoscopy and was not associated with any additional significant complications.

Extracorporeal membrane oxygenation in Jehovah’s Witness patients: Case report, literature review, and summary of recommendations

Perfusion ◽  
2021 ◽  
pp. 026765912110477
Author(s):  
Abrahán Mera ◽  
Eduard Argudo ◽  
María Martínez-Martínez ◽  
Clara Palmada ◽  
Camilo Bonilla ◽  
...  
Keyword(s):  
Extracorporeal Membrane Oxygenation ◽  
Influenza A ◽  
Jehovah’S Witness ◽  
Jehovah's Witness ◽  
Membrane Oxygenation ◽  
Influenza A H1n1 ◽  
Refractory Hypoxemia ◽  
Venovenous Ecmo ◽  
H1n1 Pneumonia ◽  
Witness Patient

Extracorporeal Membrane Oxygenation (ECMO) is commonly associated with a high blood transfusion requirement. Jehovah’s Witness patients present a particular challenge. The impossibility of transfusing blood cells and starting anticoagulation treatment are common contraindications for this supportive measure. Here we report the case of a Jehovah’s Witness patient with refractory hypoxemia due to influenza A H1N1 pneumonia who required venovenous ECMO for 11 days. We describe the use of a bloodless approach to reduce the waste of blood, avoiding anticoagulation, and improving red blood cell production. We then summarize the current literature on the use of ECMO in Jehovah’s Witness patients and, finally, we propose some recommendations for their management.

Use of extracorporeal membrane oxygenation in postcardiotomy pediatric patients: parameters affecting survival

Perfusion ◽  
2020 ◽  
Vol 35 (7) ◽  
pp. 608-620 ◽  
Author(s):  
Servet Ergün ◽  
Okan Yildiz ◽  
Mustafa Güneş ◽  
Halil Sencer Akdeniz ◽  
Erkut Öztürk ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Extracorporeal Membrane Oxygenation ◽  
Odds Ratio ◽  
Survival Rates ◽  
Low Cardiac Output Syndrome ◽  
Low Cardiac Output ◽  
Factors Affecting ◽  
Membrane Oxygenation ◽  
Successful Weaning

Aim: We aimed to investigate the risk factors affecting survival after extracorporeal membrane oxygenation use in pediatric postcardiotomy patients. Methods: One hundred thirty-three consecutive patients who underwent surgery for congenital heart disease who needed extracorporeal membrane oxygenation support were retrospectively analyzed. Results: In all, 3,082 patients were operated, of which 140 patients (4.54% of the total number of operations) needed extracorporeal membrane oxygenation. Eighty (60.1%) patients were successfully weaned and 51 (38.3%) patients were discharged. Of the 50 patients discharged during the mean follow-up period of 34.8 (0-192.4) months, 6 (12%) patients died. The extracorporeal membrane oxygenation support was instituted in 29 (21.8%) patients for extracorporeal membrane oxygenation cardiopulmonary resuscitation, in 44 (33.1%) patients due to the inability to be separated from cardiopulmonary bypass, in 19 (14.3%) patients due to respiratory failure, and in 41 patients due to low cardiac output syndrome. Eighty patients (60.2%) were successfully weaned from extracorporeal membrane oxygenation support. The remaining 53 (39.8%) patients died on extracorporeal membrane oxygenation. Mortality was observed in 29 (21.8%) of the 80 patients in the successful weaning group, while the remaining 51 (38.3%) patients were discharged from the hospital. Multivariate analysis showed that double-ventricular physiology increased the rate of successful weaning (odds ratio: 3.4, 95% confidence interval lower: 1.5 and upper: 8, p = 0.004) and prolonged extracorporeal membrane oxygenation durations were a risk factor in successful weaning (odds ratio: 0.9, 95% confidence interval lower: 0.8 and upper: 0.9, p = 0.007). The parameters affecting mortality were the presence of syndrome (odds ratio: 3.8, 95% confidence interval lower: 1.0 and upper: 14.9, p = 0.05), single-ventricular physiology (odds ratio: 5.3, 95% confidence interval lower: 1.8 and upper: 15.3, p = 0.002), and the need for a second extracorporeal membrane oxygenation (odds ratio: 12.9, 95% confidence interval lower: 1.6 and upper: 104.2, p = 0.02). While 1-year survival was 15.2% and 3-year survival was 12.1% in patients with single-ventricular physiology, the respective survival rates were 43.9% and 40.8%. Conclusion: Parameters affecting mortality after extracorporeal membrane oxygenation support in pediatric postcardiotomy patient group were the presence of a syndrome, multiple runs of extracorporeal membrane oxygenation, and single-ventricular physiology. Timing of extracorporeal membrane oxygenation initiation, appropriate patient selection, appropriate reintervention or reoperation for patients with correctable pathology, the use of an appropriate cannulation strategy in single-ventricle patients, management of shunt flow, and appropriate interventions to reduce the incidence of complications play key roles in improving survival.

scholarly journals Lessons learned from extracorporeal membrane oxygenation as a bridge to lung transplantation

2014 ◽  
Author(s):  
Vladimir Shumaster ◽  
Oliver Jawitz ◽  
David Yuh ◽  
Pramod Bonde
Keyword(s):  
Postoperative Complications ◽  
Extracorporeal Membrane Oxygenation ◽  
Lung Transplantation ◽  
Survival Rates ◽  
Length Of Hospital Stay ◽  
Lessons Learned ◽  
Control Group ◽  
Membrane Oxygenation ◽  
Lung Transplants ◽  
United Network

Extracorporeal membrane oxygenation (ECMO) has been used infrequently as a bridge to lung transplantation due to lack of consensus and data regarding the benefits of such a strategy. We present data from the United Network of Organ Sharing (UNOS) database on the outcomes of patients bridged to lung transplantation with ECMO. We used the UNOS database to analyze data between January 1, 2000 and December 31, 2011. During this time 14,263 lung transplants were performed, of which 143 (1.0%) were bridged using ECMO. Patients on ECMO as a bridge to lung transplantation were compared to those transplanted without prior ECMO support. Demographics, survival rates, complications, and rejection episodes were compared between the two groups. The 30-day, 6-month, 1-year, 3-year, and 5-year survival rates were 69%, 56%, 48%, 26%, and 11%, respectively, for the ECMO bridge group and 95%, 88%, 81%, 58%, and 38% respectively, for the control group (p ≤ 0.01). The ECMO group incurred higher rate of postoperative complications, including airway dehiscence (4% vs. 1%, p ≤ 0.01), stroke (3% vs. 2%, p ≤ 0.01), infection (56% vs. 42%, p ≤ 0.01), and pulmonary embolism (10% vs. 0.6%, p ≤ 0.01). The length of hospital stay was longer for the ECMO group (41 vs. 25 days, p ≤ 0.01), and they were treated for rejection more often (49% vs. 36%, p = 0.02). The use of ECMO as a bridge to lung transplantation is associated with significantly worse survival and more frequent postoperative complications. Therefore, we advocate very careful patient selection and cautious use of ECMO.

scholarly journals Complications and mortality of venovenous extracorporeal membrane oxygenation in the treatment of neonatal respiratory failure: a systematic review and meta-analysis

2019 ◽  
Author(s):  
Jing Xiong ◽  
Li Zhang ◽  
Lei Bao
Keyword(s):  
Systematic Review ◽  
Respiratory Failure ◽  
Extracorporeal Membrane Oxygenation ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Membrane Oxygenation ◽  
Venovenous Ecmo ◽  
Complications And Mortality ◽  
Overall Mortality

Abstract Background: Extracorporeal membrane oxygenation (ECMO) has been increasingly used for severe neonatal respiratory failure refractory to conventional treatments. To systematically evaluate the complications and mortality of venovenous ECMO in the treatment of neonatal respiratory failure, we performed a systematic review and meta-analysis of all the related studies. Methods: PubMed, Embase, and Cochrane Library were searched. The retrieval period was from the establishment of the database to February 2019. Two investigators independently screened articles according to the inclusion and exclusion criteria. The quality of article was assessed by the Newcastle-Ottawa scale (NOS). The meta-analysis was performed by Stata 15.0 software. Results: Four observational studies were included, with a total of 347 newborns. The overall mortality at hospital charge was 12% (5% - 18%) with a heterogeneity of I2 = 73.8% (p = 0.01). Two studies reported mortality during ECMO and after decannulation, with 10% (0.8% -19.2%) and 6.1% (2.6% - 9.6%) respectively. The most common complications associated with venovenous ECMO were: pneumothorax (20.6%), hypertension (20.4%), cannula dysfunction (20.2%), seizure (14.9%), renal failure requiring hemofiltration (14.7%), infectious complications (10.3%), thrombi (7.4%), intracranial hemorrhage or infarction (6.6%), hemolysis (5.3%), cannula site bleeding (4.4%), gastrointestinal bleeding (3.7%), oxygenator failure (2.8%), other bleeding events (2.8%), brain death (1.9%), and myocardial stun (0.9%). Conclusion: The overall mortality at discharge of venovenous ECMO in the treatment of neonatal respiratory failure was 12%. Although complications are frequent, the survival rate during hospitalization is still high. Further larger samples and higher quality of randomized controlled trials (RCT) are needed to clarify the efficacy and safety of this technique in the treatment of neonatal respiratory failure.

scholarly journals Complications and mortality of venovenous extracorporeal membrane oxygenation in the treatment of neonatal respiratory failure: a systematic review and meta-analysis

2019 ◽  
Author(s):  
Jing Xiong ◽  
Li Zhang ◽  
Lei Bao
Keyword(s):  
Respiratory Failure ◽  
Extracorporeal Membrane Oxygenation ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Bleeding Events ◽  
Membrane Oxygenation ◽  
Venovenous Ecmo ◽  
Complications And Mortality ◽  
Overall Mortality

Abstract Background Extracorporeal membrane oxygenation (ECMO) has been increasingly used for severe neonatal respiratory failure refractory to conventional treatments. To systematically evaluate the complications and mortality of venovenous ECMO in the treatment of neonatal respiratory failure. Methods PubMed, Embase, and Cochrane Library were searched. The retrieval period was from the establishment of the database to February 2019. Two investigators independently screened articles according to the inclusion and exclusion criteria. The quality of article was assessed by the Newcastle-Ottawa scale (NOS). The meta-analysis was performed by Stata 15.0 software. Results Four observational studies were included, with a total of 347 newborns. The overall mortality at hospital charge was 12% (5% - 18%) with a heterogeneity of I2 = 73.8% (p = 0.01). Two studies reported mortality during ECMO and after decannulation, with 10% (0.8% -19.2%) and 6.1% (2.6% - 9.6%) respectively. The most common complications associated with venovenous ECMO were: pneumothorax (20.6%), hypertension (20.4%), cannula dysfunction (20.2%), seizure (14.9%), renal failure requiring hemofiltration (14.7%), infectious complications (10.3%), thrombi (7.4%), intracranial hemorrhage or infarction (6.6%), hemolysis (5.3%), cannula site bleeding (4.4%), gastrointestinal bleeding (3.7%), oxygenator failure (2.8%), other bleeding events (2.8%), brain death (1.9%), and myocardial stun (0.9%). Conclusion The overall mortality at discharge of venovenous ECMO in the treatment of neonatal respiratory failure was 12%. Although complications are frequent, the survival rate during hospitalization is still high. Further larger samples, and higher quality of randomized controlled trials (RCT) are needed to clarify the efficacy and safety of this technique in the treatment of neonatal respiratory failure.

LIPID PEROXIDATION DURING INDUCTION OF EXTRACORPOREAL MEMBRANE OXYGENATION (ECMO) AFTER HYPOXIA IN ENDOTOXIN CHALLENGED RABBITS

1998 ◽  
Vol 26 (Supplement) ◽  
pp. 116A
Author(s):  
Gerhard Trittenwein ◽  
Alexandre T. Rotta ◽  
Bjorn Gunnarsson ◽  
David M. Steinhorn
Keyword(s):  
Lipid Peroxidation ◽  
Extracorporeal Membrane Oxygenation ◽  
Membrane Oxygenation

Application of Standardized Nursing Procedures Combined with Specialized Management Education in Extracorporeal Membrane Oxygenation in ICU

2021 ◽  
Vol 7 (4) ◽  
pp. 647-654
Author(s):  
Min Zhang ◽  
Lingling Wu ◽  
Weihong Shen ◽  
Ying Shen
Keyword(s):  
Extracorporeal Membrane Oxygenation ◽  
Completion Time ◽  
Management Education ◽  
Control Group ◽  
Average Weight ◽  
Efficacy Rate ◽  
Observation Group ◽  
Nursing Management ◽  
Preparation Time ◽  
Membrane Oxygenation

To analyze the application effect of standardized nursing procedures combined with specialized management education in extracorporeal membrane oxygenation (ECMO) in ICU. 18 patients treated with ECMO in our department from July 1, 2020 to December 30, 2020 were chosen as observation group, and 18 patients receiving ECMO in our department (January 2017-June 2018) were selected as control group. The control group received routine procedures in the implementation of ECMO nursing while the observation group received standardized ECMO nursing procedures combined with specialized management education to analyze the effect of different nursing management methods on ECMO patients by comparing the indexes before and after nursing management. There were no obvious differences in gender ratio, average age, average weight, average BMI, marital status, education and residence between the two groups (P > 0.05). Personnel arrival time, start time of rescue, preparation time of items, pipeline prefilling time and catheter completion time in observation group were obviously better compared with control group (P < 0.001). The total clinical efficacy rate in observation group was obviously higher compared with control group (P < 0.05). There were no significant differences in the Pa02, SP02 and PaC02 levels between the two groups before nursing management (P > 0.05), and the levels in observation group were obviously higher compared with control group after nursing management (P < 0.001). The clinical nursing satisfaction in observation group was obviously higher compared with control group (P < 0.05). The sequential organ failure assessment (SOFA) score in observation group after nursing management was obviously lower compared with control group (P < 0.001). The incidence of complications in observation group was obviously lower compared with control group (P < 0.05). The implementation of standardized nursing procedures combined with specialized management education for ECMO patients can effectively shorten rescue time, the preparation time before catheterization and catheter completion time, improve the therapeutic effect, and improve blood gas indicators, safe and effective. At the same time, it can facilitate the doctor-nurse cooperation, worthy of promotion and application.

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