Extracorporeal Membrane Oxygenation Outcomes in Children With Preexisting Neurologic Disorders or Neurofunctional Disability

A narrative review of neuromonitoring modalities in critically ill children

Acute neurologic injury is common in critically ill children. Some conditions - such as traumatic brain injury, meningitis, and hypoxic-ischemic injury following cardiac arrest - require careful consideration of cerebral physiology. Specialized neuromonitoring techniques provide insight regarding patient-specific and disease-specific insight that can improve diagnostic accuracy, aid in targeting therapeutic interventions, and provide prognostic information. In this review, we will discuss recent innovations in invasive (e.g., intracranial pressure monitoring and related computed indices) and noninvasive (e.g., transcranial doppler, near-infrared spectroscopy) neuromonitoring techniques used in traumatic brain injury, central nervous system infections, and after cardiac arrest. We will discuss the pertinent physiological mechanisms interrogated by each technique and discuss available evidence for potential clinical application. We will also discuss the use of innovative neuromonitoring techniques to detect and manage neurologic complications in critically ill children with systemic illness, focusing on sepsis and cardiorespiratory failure requiring extracorporeal membrane oxygenation.

Admission Functional Status is Associated With Intensivists Perception of Extracorporeal Membrane Oxygenation Candidacy for Pediatric Acute Respiratory Failure

OBJECTIVES

To determine the association between admission Functional Status Scale (FSS) category and perceived extracorporeal membrane oxygenation (ECMO) candidacy for pediatric acute respiratory failure.

DESIGN

Prospective, cross-sectional study.

SETTING

Single-center, quaternary, and ECMO referral academic children's hospital between March 2021 and January 2022.

SUBJECTS

Pediatric intensivists directly caring for patients admitted with acute respiratory failure secondary to shock or respiratory disease.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Pediatric intensivists were surveyed about current patients within 72 hours of initiation or escalation of invasive mechanical ventilation on whether they would offer ECMO should their patient deteriorate. Baseline functional status was assessed using trichotomized admission FSS: 1) normal/mild dysfunction (6-9), 2) moderate dysfunction (10-15), and 3) severe dysfunction (> 16). Multivariable logistic regression clustered by physician was used to assess the association between admission FSS category with perceived ECMO candidacy. Thirty-seven intensivists participated with 76% (137/180) of survey responses by those with less than 10 years of experience. 81% of patients (146/180) were perceived as ECMO candidates and 19% of patients (34/180) were noncandidates. Noncandidates had worse admission FSS scores than candidates (15.5 vs. 9, p < 0.001). After adjustment for age, admission FSS category of severe dysfunction had lower odds of perceived ECMO candidacy compared with normal to mild dysfunction (odds ratio [OR] 0.18 [95% CI, 0.06-0.56], p < 0.003). Patients with an abnormal communication subscore domain had the lowest odds of being considered a candidate (unadjusted OR 0.44 [95% CI, 0.29-0.68], p < 0.0001).

CONCLUSIONS

In this prospective, single-center, cross-sectional study, admission FSS category indicating worse baseline functional status impacted pediatric intensivists' perceptions of ECMO candidacy for patients with acute respiratory failure. Abnormal FSS subscores in the neurocognitive domains were the most important considerations. Future studies should better seek to define the decision-making priorities of both parents and medical specialists for the utilization of ECMO in children with acute respiratory failure.

Neurologic Outcomes and Quality of Life in Children After Extracorporeal Membrane Oxygenation

RATIONALE

Use of life support with extracorporeal membrane oxygenation (ECMO) is associated with brain injury. However, the consequences of these injuries on subsequent neurologic development and health-related quality of life (HRQoL) are poorly described in children.

OBJECTIVES

The aim of this preliminary study was to describe short- and long-term neurologic outcomes in survivors of ECMO, as well as their HRQoL.

DESIGN

Retrospective identified cohort with contemporary evaluations.

SETTING

Necker Children's Hospital academic PICU.

PATIENTS

Forty survivors who underwent ECMO (October 2014 to January 2020) were included in follow-up assessments in May 2021.

INTERVENTIONS

None.

MEASUREMENT AND MAIN RESULTS

We first reviewed the outcomes of ECMO at the time of PICU discharge, which included a summary of neurology, radiology, and Pediatric Overall/Cerebral Performance Category (POPC/PCPC) scores. Then, in May 2021, we interviewed parents and patients to assess HRQoL (Pediatric Quality of Life Inventory [PedsQL]) and POPC/PCPC for children 3 years old or older, and Denver II test (DTII) for younger children. An evaluation of DTII in the youngest patients 1 year after ECMO decannulation was also added. Median age at ECMO was 1.4 years (interquartile range [IQR], 0.4-6 yr). Thirty-five children (88%) underwent a venoarterial ECMO. At PICU discharge, 15 of 40 patients (38%) had neurologic impairment. Assessment of HRQoL was carried out at median of 1.6 years (IQR, 0.7-3.3 yr) after PICU discharge. PedsQL scores were over 70 of 100 for all patients (healthy peers mean results: 80/100), and scores were like those published in patients suffering with chronic diseases. In May 2021, seven of 15 patients had a normal DTII, and 36 of 40 patients had a POPC/PCPC score less than or equal to 3.

CONCLUSIONS

None of our patients presented severe disability at long term, and HRQoL evaluation was reassuring. Considering the risk of neurologic impairment after ECMO support, a systematic follow-up of these high-risk survivor patients would be advisable.

Supporting and Contextualizing Pediatric ECMO Decision-Making Using a Person-Centered Framework

AbstractThere is a critical need to establish a space to engage in careful deliberation amid exciting, important, necessary, and groundbreaking technological and clinical advances in pediatric medicine. Extracorporeal membrane oxygenation (ECMO) is one such technology that began in pediatric settings nearly 50 years ago. And while not void of medical and ethical examination, both the symbolic progression of medicine that ECMO embodies and its multidimensional challenges to patient care require more than an intellectual exercise. What we illustrate, then, is a person-centered framework that incorporates the philosophy and practice of palliative care and care-based ethical approaches. This person-centered framework is valuable for identifying and understanding challenges central to ECMO, guides collaborative decision-making, and recognizes the value of relationships within and between patients, families, healthcare teams, and others who impact and are impacted by ECMO. Specifically, this person-centered approach enables caregivers to provide compassionate and effective support in critical, and often urgent, situations where conflicts may emerge among healthcare team members, families, and other decision makers. By reflecting on three cases based on actual situations, we apply our person-centered framework and identify those aspects that were utilized in and informed this project. We aim to fill a current gap in the pediatric ECMO literature by presenting a person-centered framework that promotes caregiving relationships among hospitalized critically ill children, families, and the healthcare team and is supported through the philosophy and practice of palliative care and clinical ethics.