Document Detail

Cardiovascular MRI without sedation or general anesthesia using a feed-and-sleep technique in neonates and infants.
MedLine Citation:
PMID:  21861089     Owner:  NLM     Status:  Publisher    
BACKGROUND: MRI in small children generally necessitates the use of general anesthesia. OBJECTIVE: We describe our initial results with a new technique that we name the feed-and-sleep method, whereby an infant can undergo a cardiac MRI without the need for general anesthesia or sedation. MATERIALS AND METHODS: The infant is fasted for 4 h prior to the scan and is then fed by his mother prior to the scan. He is then swaddled with 1 to 2 infant sheets before being placed in a vacuum-bag immobilizer. As air is removed from the bag, the immobilizer becomes a rigid cradle that fits the infant's body. We prioritize the sequences according to the purpose of the study and in the order of clinical importance. RESULTS: Between January 2010 and January 2011 a total of 20 infants with the median age 14.5 days (minimum 2 days, maximum 155 days) underwent CMR studies via this method. All were performed successfully with no distress to the infant. The median scan time was 46.5 min (minimum 20, maximum 66). All had complex congenital heart defects and all planned sequences were acquired with sufficient quality to allow accurate diagnosis and to plan appropriate surgery. CONCLUSION: Using this technique, infants younger than 6 months can complete a cardiovascular MRI without the need for sedation or general anesthesia. We advocate the incorporation of this safe and reliable technique into routine clinical practice.
Jonathan Windram; Lars Grosse-Wortmann; Masoud Shariat; Mary-Louise Greer; Mark W Crawford; Shi-Joon Yoo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-23
Journal Detail:
Title:  Pediatric radiology     Volume:  -     ISSN:  1432-1998     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0365332     Medline TA:  Pediatr Radiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Diagnostic Imaging, Hospital for Sick Children, 555 University Ave., Toronto, Canada, M5G 1X8.
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