Document Detail


Arteriovenous extracorporeal lung assist as integral part of a multimodal treatment concept: a retrospective analysis of 22 patients with ARDS refractory to standard care.
MedLine Citation:
PMID:  18662425     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND AND OBJECTIVES: Pumpless arteriovenous extracorporeal lung assist is increasingly used as a rescue therapy in acute respiratory distress syndrome. Arteriovenous extracorporeal lung assist is highly efficient in eliminating carbon dioxide and allows the application of ventilator techniques that prioritize lung protection and aim to reduce ventilator-induced lung injury and remote organ dysfunction. METHODS: Retrospective data analysis performed in a 12-bed university hospital ICU. In all, 22 patients with acute respiratory distress syndrome refractory to standard care were included. Arteriovenous extracorporeal lung assist as central part of a multimodal treatment concept was combined with tidal volume (VT) reduction below 4 mL kg-1 predicted body weight, a positive end-expiratory pressure titrated to optimize oxygenation and continuous axial rotation. RESULTS: Hypercapnia was reversed within 24 h in survivors (39 mmHg (35-42) (median and interquartile range) vs. 65 mmHg (54-72), P < 0.05) and non-survivors (5.2 kPa (5.5-6.0) vs. 10 kPa (6.9-13.9), P < 0.05). Oxygenation was significantly improved in survivors after 24 h (PaO2/FiO2 ratio 20.7 kPa (17.4-22.7) vs. 11.7 kPa (7.3-20.8), P < 0.05). All patients required norepinephrine infusion and volume resuscitation. The overall complication rate was 23%, predominantly due to reversible lower limb ischaemia. One patient (5%) was permanently disabled due to amputation of a seriously injured lower leg 9 days after initiation of arteriovenous extracorporeal lung assist therapy; however, the patient survived without neurological deficits despite an initial oxygenation index of 4.4 kPa. The overall mortality rate was 27%. CONCLUSIONS: A multimodal treatment concept with arteriovenous extracorporeal lung assist as its central part provides reversal of hypercapnia and stabilization of oxygenation. In an attempt to maximize lung protection and potentially reduce ventilator-induced lung injury, a further VT reduction below 4 mL kg(-1) predicted body weight combined with a high mean airway pressure and continuous axial rotation is safely possible.
Authors:
R M Muellenbach; M Kredel; C Wunder; J Küstermann; T Wurmb; U Schwemmer; F Schuster; M Anetseder; N Roewer; J Brederlau
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Publication Detail:
Type:  Journal Article     Date:  2008-07-29
Journal Detail:
Title:  European journal of anaesthesiology     Volume:  25     ISSN:  1365-2346     ISO Abbreviation:  Eur J Anaesthesiol     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-10-07     Completed Date:  2009-02-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8411711     Medline TA:  Eur J Anaesthesiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  897-904     Citation Subset:  IM    
Affiliation:
University of Wuerzburg, Department of Anaesthesiology, Wuerzburg, Germany.
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MeSH Terms
Descriptor/Qualifier:
Adult
Body Weight
Combined Modality Therapy / methods
Extracorporeal Membrane Oxygenation
Female
Humans
Hypercapnia / therapy
Lung / metabolism
Male
Middle Aged
Oxygen / metabolism
Positive-Pressure Respiration / methods*
Respiratory Distress Syndrome, Adult / drug therapy*,  therapy*
Retrospective Studies
Treatment Outcome
Chemical
Reg. No./Substance:
7782-44-7/Oxygen

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