A Technique of Awake Bronchoscopic Endotracheal Intubation for Respiratory Failure in Patients With Right Heart Failure and Pulmonary Hypertension

A Technique of Awake Bronchoscopic Endotracheal Intubation for Respiratory Failure in Patients With Right Heart Failure and Pulmonary Hypertension
Johannes, J et al
Critical Care Medicine:  September 2017 - Volume 45 - Issue 9 - p e980–e984

Objective: Patients with pulmonary hypertension and right heart failure have a high risk of clinical deterioration and death during or soon after endotracheal intubation. The effects of sedation, hypoxia, hypoventilation, and changes in intrathoracic pressure can lead to severe hemodynamic instability. In search for safer approach to endotracheal intubation in this cohort of patients, we evaluate the safety and feasibility of an alternative intubation technique. Data Sources: Retrospective data analysis. Study Selection: Two medical ICUs in large university hospitals in the United States. Data Extraction: We report a case series of nine nonconsecutive patients with compromised right heart function, pulmonary hypertension, and severe acute hypoxemic respiratory failure who underwent endotracheal intubation with a novel technique combining awake bronchoscopic intubation supported with nasally delivered noninvasive positive pressure ventilation or high-flow nasal cannula. Data Synthesis: All patients were intubated in the first attempt without major complications and eight patients (88%) were alive 24 hours after intubation. Systemic hypotension was the most frequent complication following the procedure. Conclusions: Awake bronchoscopic intubation supported with a noninvasive positive pressure delivery systems may be feasible alternative to standard direct laryngoscopy approach. Further studies are needed to better assess its safety and applicability.

Extracorporeal Membrane Oxygenation for Acute Decompensated Heart Failure

Extracorporeal Membrane Oxygenation for Acute Decompensated Heart Failure

Dangers, L et al
Critical Care Medicine: August 2017 - Volume 45 - Issue 8 - p 1359–1366

Objective: Long-term outcomes of patients treated with venoarterial-extracorporeal membrane oxygenation for acute decompensated heart failure (i.e., cardiogenic shock complicating chronic cardiomyopathy) have not yet been reported. This study was undertaken to describe their outcomes and determine mortality-associated factors. Design: Retrospective analysis of data prospectively collected. Setting: Twenty-six–bed tertiary hospital ICU. Patients: One hundred five patients implanted with venoarterial-extracorporeal membrane oxygenation for acute decompensated heart failure. Intervention: None. 
Measurements and Main Results: From March 2007 to January 2015, 105 patients were implanted with venoarterial-extracorporeal membrane oxygenation for acute decompensated heart failure in our ICU (67% of them had an intraaortic balloon pump to unload the left ventricle). Their 1-year survival rate was 42%; most of the survivors were transplanted either directly or after switching to central bilateral centrifugal pump, ventricular-assist device, or total artificial heart. Most deaths occurred early after multiple organ failure. Multivariable analyses retained (odds ratio [95% CI]) pre–extracorporeal membrane oxygenation Sequential Organ Failure Assessment score of more than 11 (3.3 [1.3–8.3]), idiopathic cardiomyopathy (0.4 [0.2–1]), cardiac disease duration greater than 2 years pre–extracorporeal membrane oxygenation (2.8 [1.2–6.9]), and pre–extracorporeal membrane oxygenation blood lactate greater than 4 mmol/L (2.6 [1.03–6.4]) as independent predictors of 1-year mortality. Only 17% of patients with pre–extracorporeal membrane oxygenation Sequential Organ Failure Assessment scores of 14 or more survived, whereas 52% of those with scores less than 7 and 60% of those with scores 7 or more and less than 11 were alive 1 year later. 
Conclusions: Among this selected cohort of 105 patients implanted with venoarterial-extracorporeal membrane oxygenation for acute decompensated heart failure, 1-year survival was 42%, but better for patients with pre–extracorporeal membrane oxygenation Sequential Organ Failure Assessment scores of less than 11. Venoarterial-extracorporeal membrane oxygenation should be considered for patients with acute decompensated heart failure, but timing of implantation is crucial.

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