scholarly journals Delayed hyperenhancement obtained by non-contrast computed tomography following coronary angiography in patients of extracorporeal cardiopulmonary resuscitation

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
T Watanabe ◽  
T Akasaka ◽  
N Sasaki ◽  
K Yamamoto

Abstract Background/Introduction Extracorporeal cardiopulmonary resuscitation (ECPR) has been reported to improve survival and neurologic outcome as compared to conventional CPR in refractory cardiac arrest. Although prognostic factors of these patients have been reported, predicting of outcome is difficult in real world. Recently, early evaluation of myocardial viability in acute myocardial infarction by non-contrast computed tomography (CT) post coronary angiography (CAG) has been reported. And myocardial contrast delayed enhancement obtained by this method related to higher risk of cardiac events. However, few studies have reported delayed enhancement on left ventricular wall findings in non-contrast CT after CAG in terms of patients performed ECPR. Purpose To investigate the impact of delayed hyperenhancement obtained by non-contrast CT following CAG in patients performed ECPR. Methods We investigated 79 patients treated by ECPR for refractory cardiac arrest regardless of whether in-hospital or out-hospital in our institute from Apr 2009 to Feb 2018. Thirty-two in these patients received non-contrast CT following CAG with ECPR were enrolled. All ECPR cases underwent VA-ECMO in the catheter laboratory using percutaneous procedure while maintaining conventional CPR. Non-ECG-gated and non-contrast CT was performed using a 64-row multidetector CT scanner. Results Survival rate was 18.8% in this cohort. There was no significant difference between survive and in-hospital death group in terms of patient characteristics, clinical time courses, initial blood samples and procedure characteristics. Only delayed hyperenhancement showed significant difference between 2 groups (p=0.04). All delayed hyperenhancements were detected in only in-hospital death group. Delayed hyperenhancement was detected in 12 cases (37.5%). Initial shockable rhythm was less common in cases with delayed hyperenhancement. Cardiac death tended to be more frequent in patients with delayed hyperenhancement. The major causes of death were bleeding (41.7%) and heart failure (33%). Conclusion(s) Delayed hyperenhancement in patients treated ECPR was strong predictor of in-hospital death. Image of delayed hyperenhancement Funding Acknowledgement Type of funding source: None

Circulation ◽  
2018 ◽  
Vol 138 (Suppl_2) ◽  
Author(s):  
Kazuhiro Sugiyama ◽  
Kazuki Miyazaki ◽  
Takuto Ishida ◽  
Takahiro Tanabe ◽  
Yuichi Hamabe

Background: Extracorporeal cardiopulmonary resuscitation (ECPR) is a promising treatment for refractory cardiac arrest. Computed tomography (CT) is often performed after ECPR for diagnosis of etiology and evaluation of complications. However, few studies have reported left ventricular wall findings in contrast-enhanced CT (CE-CT) after ECPR. This study examined the left ventricular wall CE-CT findings after ECPR, and evaluated the association between these findings and the results of coronary angiography and prognosis. Method: We evaluated out-of-hospital cardiac arrest patients who were treated with ECPR and then underwent both non-ECG gated CE-CT and coronary angiography at our center between January 2011 and April 2018. The left ventricular wall CE-CT findings at 90 s after contrast injection were classified as follows: homogeneously-enhanced (HE), left ventricular wall was homogeneously enhanced; segmental defect (SD), left ventricular wall was not segmentally enhanced according to coronary artery territory; total defect (TD), entire left ventricular wall was not enhanced; and others. Significant stenosis on coronary angiography, survival to hospital discharge, and successful weaning from extracorporeal membrane oxygenation (ECMO) were examined. Results: A total of 111 patients were eligible. Median age was 59 years, and 85 (77%) had initial shockable rhythm. A total of 37 (33%) survived to hospital discharge. HE was observed in 33 patients, SD in 41, TD in 15, and others in 22. Among 74 patients who underwent CT prior to coronary angiography, SD predicted significant stenosis, with sensitivity of 83% and specificity of 100%. Among all patients, 28 (85%) with HE, 15 (37%) with SD, and 3 (20%) with TD were weaned successfully from ECMO. In addition, 17 (52%) patients with HE, 10 (24%) with SD, and 2 (13%) with TD survived to hospital discharge. Conclusion: SD could predict coronary artery stenosis with good specificity. Patients with HE had higher success rates for weaning from ECMO. On the other hand, TD was associated with poor outcomes. The left ventricular wall findings in non-ECG gated CE-CT after ECPR might be useful in diagnosis and prognostication.


Circulation ◽  
2018 ◽  
Vol 138 (Suppl_1) ◽  
Author(s):  
Aditi Singhvi ◽  
Nirav Patel ◽  
Jason A Gluck

Introduction: Extracorporeal cardiopulmonary resuscitation (ECPR) may be considered for select cardiac arrest patients for whom the suspected etiology of the arrest is potentially reversible. In adults, the survival to discharge with ECPR is reportedly 22% to 33%, with better outcomes for in-hospital arrests. Outcomes with ECPR depend on multiple factors including, location of arrest, etiology, duration and quality of CPR, time to initiation of ECMO, and post-arrest management. There is no consensus regarding patient selection or management of these patients. We report our preliminary experiences with ECPR for refractory cardiac arrest. Methods: Patients who underwent ECPR between January 2013 and May 2018 were identified. The characteristics of the arrest, CPR duration, cannulation procedure, post-arrest management, complications, survival and neurologic outcomes were retrospectively reviewed. Results: A total of 24 ECPR events were identified. The median age was 60 years. The median CPR duration and time from collapse to initiation of ECMO were 35 (IQR 25.5-68) and 68 (IQR 45.5-144.5) min, respectively. Peripheral and central access sites were employed in 19 and 5 cases, respectively. Return of spontaneous circulation was achieved in 21 patients (87.5%). PCI was performed on 4 and pulmonary embolectomy on 3 patients. Median duration of ECMO support was 84 (IQR 24-168) hours. Major complications occurred in 17 patients (70.8%). Nine patients (37.5%) were successfully weaned from ECMO and 7 (29.2%) survived to hospital discharge. All of the survivors had a favorable neurologic outcome. Conclusions: ECPR as part of a comprehensive multi-faceted approach for select patients with refractory cardiac arrest may improve outcomes. We noted an improvement in outcomes over time. This could be attributed to improved selection criteria as well as clinical management. The development of selection criteria may help identify patients most likely to benefit from the use of ECPR. This would have significant resource implications for hospitals with ECMO programs.


2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Konstantinos Dean Boudoulas ◽  
Bryan A. Whitson ◽  
David P. Keseg ◽  
Scott Lilly ◽  
Cindy Baker ◽  
...  

Background. Survival rates for out-of-hospital cardiac arrest are very low and neurologic recovery is poor. Innovative strategies have been developed to improve outcomes. A collaborative extracorporeal cardiopulmonary resuscitation (ECPR) program for out-of-hospital refractory pulseless ventricular tachycardia (VT) and/or ventricular fibrillation (VF) has been developed between The Ohio State University Wexner Medical Center and Columbus Division of Fire. Methods. From August 15, 2017, to June 1, 2019, there were 86 patients that were evaluated in the field for cardiac arrest in which 42 (49%) had refractory pulseless VT and/or VF resulting from different underlying pathologies and were placed on an automated cardiopulmonary resuscitation device; from these 42 patients, 16 (38%) met final inclusion criteria for ECPR and were placed on extracorporeal membrane oxygenation (ECMO) in the cardiac catheterization laboratory (CCL). Results. From the 16 patients who underwent ECPR, 4 (25%) survived to hospital discharge with cerebral perfusion category 1 or 2. Survivors tended to be younger (48.0 ± 16.7 vs. 59.3 ± 12.7 years); however, this difference was not statistically significant (p=0.28) likely due to a small number of patients. Overall, 38% of patients underwent percutaneous coronary intervention (PCI). No significant difference was found between survivors and nonsurvivors in emergency medical services dispatch to CCL arrival time, lactate in CCL, coronary artery disease severity, undergoing PCI, and pre-ECMO PaO2, pH, and hemoglobin. Recovery was seen in different underlying pathologies. Conclusion. ECPR for out-of-hospital refractory VT/VF cardiac arrest demonstrated encouraging outcomes. Younger patients may have a greater chance of survival, perhaps the need to be more aggressive in this subgroup of patients.


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