Relationship between tissue plasminogen activator, plasminogen activator inhibitor and CT image in chronic subdural hematoma.
10.3346/jkms.1995.10.5.373
- Author:
Dong Jun LIM
1
;
Yong Gu CHUNG
;
Youn Kwan PARK
;
Jun Hyuk SONG
;
Hoon Kap LEE
;
Ki Chan LEE
;
Jeong Wha CHU
;
Yong Son YANG
Author Information
1. Department of Neurosurgery, College of Medicine, Korea University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Chronic subdural hematoma;
Tissue-type plasminogen activator (t-PA);
Plasminogen activator inhibitor (PAI)
- MeSH:
Adult;
Aged;
Enzyme-Linked Immunosorbent Assay;
Female;
Hematoma, Subdural/*metabolism;
Human;
Male;
Middle Age;
Plasminogen Activator Inhibitor 1/*analysis;
Tissue Plasminogen Activator/*analysis;
Tomography, X-Ray Computed
- From:Journal of Korean Medical Science
1995;10(5):373-378
- CountryRepublic of Korea
- Language:English
-
Abstract:
The present study was performed to investigate the relationship between the concentrations of tissue-type plasminogen activator (t-PA) and plasminogen activator inhibitor (PAI) and the CT images in 23 cases of chronic subdural hematomas (SDHs). The concentrations of t-PA and PAI-1 were quantified by enzyme-linked immunosorbent assay (ELISA). Chronic SDHs were divided into five groups according to their appearance on computed tomography: high-density (n = 4), isodensity (n = 8), low-density (n = 5), mixed-density (n = 3), layering (n = 3) types. The volume of hematoma was measured with an image analyzing software program. The concentrations of t-PA were higher in layering (41.2 +/- 0.3 ng/ml, mean +/- standard error of the mean) and high-density (40.0 +/- 1.1 ng/ml) types compared to those of low-density (23.3 +/- 4.1 ng/ml) and iso-density (25.1 +/- 3.7 ng/ml) types. The concentrations of PAI-1 were lower in layering (95.9 +/- 1.0 ng/ml) and high-density (103.4 +/- 34.5 ng/ml) types compared to that of low-density (192.5 +/- 2.6 ng/ml) type. So the ratio between t-PA and PAI-1 (t-PA/PAI) was greater in layering and high-density types. The volume of hematoma was larger in mixed-density and layering types but statistically insignificant. These results presumably suggest that the ratio between t-PA and PAI concentration may contribute to the pathogenesis of the chronic SDH.
