| Effect of germinal matrix hemorrhage on terminal vein position and patency. | |
| | |
MedLine Citation:
|
PMID: 8577549 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: Pathologic studies have suggested that periventricular intraparenchymal hemorrhages (IPH) occur as the result of compression and occlusion of terminal veins (TV) by germinal matrix hemorrhages (GMH). This study used color Doppler ultrasound techniques to test this hypothesis in vivo. MATERIALS AND METHODS: Twenty-four infants with 32 intracranial hemorrhages (20 GMH, 12 GMH/IPH) were evaluated during routine sonography with color and duplex Doppler ultrasound using an ACUSON 128 XP unit with 7-MHz linear and vector transducers. Maximum transverse dimension was obtained for each GMH. On coronal color Doppler ultrasound images, TVs were evaluated for displacement, presence of flow, and time average velocity (TAV). RESULTS: Abnormalities of the TV were common with ipsilateral GMH. Of 48 terminal veins evaluated, no flow was identified in 13 (27 %), and flow in a displaced vein was seen in eight (17 %). TV abnormality occurred more frequently with GMH/IPH (90 %) than with GMH alone (52 %), and complete occlusion of the TV was more common in GMH/IPH (82 %) than in GMH alone (16 %, p < 0.002). GMH size correlated with increasing TV abnormality. Mean transverse GMH dimensions with unaffected TV, displaced TV, and occluded TV were 8.2 +/- 1 mm, 10.3 +/- 1 mm, and 12.6 +/- 1 mm, respectively (p = 0.008). A small but significant trend was observed between maximum GMH dimension and decreasing TV velocities (r = - 0.5, p < 0.01). CONCLUSIONS: Obstruction of terminal veins by germinal matrix hemorrhage may play an important role in the pathogenesis of periventricular white matter hemorrhage. |
| | |
Authors:
|
G A Taylor |
Related Documents
:
|
1621319 - Effects of multiple injections of hcg on testis blood flow. 3155889 - Testosterone precursors in spermatic venous blood of normal men and varicocele patients... 7150939 - Sympathetic orchiopathia--an experimental and clinical study. 8521069 - Endometrial thickness, morphology, vascular penetration and velocimetry in predicting i... 11095079 - Effects of unilateral testicular torsion on the blood flow of contralateral testis--an ... 2364529 - Assessment of abnormal systolic intraventricular flow patterns by doppler imaging in pa... 18936559 - Botulinum toxin type a improves blood flow in vascular thoracic outlet syndrome. 14730159 - Estimated blood loss underestimates calculated blood loss during radical retropubic pro... 20807929 - Comparison of two methods for blood lead analysis in cattle: graphite-furnace atomic ab... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Pediatric radiology Volume: 25 Suppl 1 ISSN: 0301-0449 ISO Abbreviation: Pediatr Radiol Publication Date: 1995 Nov |
Date Detail:
|
Created Date: 1996-03-11 Completed Date: 1996-03-11 Revised Date: 2010-03-24 |
Medline Journal Info:
|
Nlm Unique ID: 0365332 Medline TA: Pediatr Radiol Country: GERMANY |
Other Details:
|
Languages: eng Pagination: S37-40 Citation Subset: IM |
Affiliation:
|
Department of Radiology and Pediatrics The Johns Hopkins University School of Medicine, 600 North Wolfe Street, Baltimore, MD 21287, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Cerebral Hemorrhage
/
complications,
physiopathology,
ultrasonography* Cerebral Veins / physiopathology, ultrasonography* Cerebrovascular Circulation Constriction, Pathologic / etiology, ultrasonography Humans Infant, Newborn Infant, Premature, Diseases / ultrasonography* Ultrasonography, Doppler, Color Ultrasonography, Doppler, Transcranial Vascular Patency |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Pre-operative MRI of anorectal anomalies in the newborn period.
Next Document: Increased renal medullary echogenicity in neonates.