Document Detail


Reduced cardiac output and its correlation with coronary blood flow and troponin in asphyxiated infants treated with therapeutic hypothermia.
MedLine Citation:
PMID:  22669637     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Perinatal asphyxia can lead to multi-organ insult which includes cardiovascular dysfunction. The objective was to study the relationship between cardiac function, perfusion and troponin. Unit database was accessed to identify infants with perinatal asphyxia over the last 2 years. Information from medical records and archived echocardiographic images was retrieved. Comparisons for echocardiographic information were made with healthy term infants. Seventeen infants with perinatal asphyxia were identified, of which three were excluded (one-33 weeks gestation, two-coagulopathy and pulmonary hypertension); 14 infants received therapeutic hypothermia. Median (range) gestation and birthweight were 39 (37-42) weeks and 3,550 (2,380-3,992) g respectively. Mean (S.D.) rectal temperature and time of echocardiogram were 33.5 ± 0.5 °C and median (range) 7.7 h [3-10] respectively. Majority of infants had low biventricular outputs. Median (range) SVC flow was 29.8 ml/kg/min (13-96.2). Median (range) troponin was 0.77 μg/L (0.17-2.6); normal ≤ 0.08 μg/L. Markedly low coronary flows (diastolic VTI median (range) 2.1 (1.3-2.9) cm were noted compared to controls. Coronary flow had a significantly positive correlation with left ventricular output. Higher troponin levels were associated with lower aortic stroke velocity. A close association between cardiac output, perfusion and troponin was noted. A dichotomy between blood pressure and flow parameters was noted, indicating the wide variation in vascular resistance in these infants. Biventricular output, coronary and SVC flows were significantly higher in the control population. In conclusion, inter-variable relationship between cardiac output, coronary flow and troponin is an important addition to the understanding of cardiovascular impact of perinatal asphyxia.
Authors:
Arvind Sehgal; Flora Wong; Shailender Mehta
Related Documents :
9068307 - Postural drainage and gastro-oesophageal reflux in infants with cystic fibrosis.
3987717 - Intestinal obstruction due to peritoneal adhesions as a complication of peritoneal dial...
15991167 - Infants with repaired esophageal atresia and distal tracheoesophageal fistula with seve...
24002327 - The preterm cerebellum at term age: ultrasound measurements are not different from infa...
10207587 - Applying fairbairn's object relations theory to the dynamics of the battered woman.
1981617 - Development of contrast sensitivity and acuity of the infant colour system.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-6
Journal Detail:
Title:  European journal of pediatrics     Volume:  -     ISSN:  1432-1076     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-6-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7603873     Medline TA:  Eur J Pediatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Monash Newborn, Monash Medical Centre, Melbourne, Australia, arvind.sehgal@monash.edu.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Diversity and antibiotic resistance of Acinetobacter spp. in water from the source to the tap.
Next Document:  Sex and drug risk behavior pre- and post-emigration among Latino migrant men in post-Hurricane Katri...