An Experimental Study on the Effect of Measurement Parameters and Hydrocephalus on the Pressure Volume Index.
- Author:
In Sung PARK
1
;
Kyu Chang WANG
;
Byung Kyu CHO
;
Chang Hun RHEE
;
Sun Ho LEE
;
Hyun Jib KIM
;
Dae Hee HAN
;
Kil Soo CHOI
;
Bo Sung SIM
Author Information
1. Department of Neurosurgery, College of Medicine, Seoul National University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Pressure volume index(PVI);
Injection volume;
Injection speed;
Laterality of injection site;
Intracranial pressure(ICP);
Hydrocephalus
- MeSH:
Animals;
Cats;
Hydrocephalus*;
Lateral Ventricles
- From:Journal of Korean Neurosurgical Society
1989;18(2):254-261
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
To study the effect of measurement parameters and hydrocephalus on the pressure volume index(PVI), PVI study was performed in 5 normal and 5 kaolin-induced hydrocephalic cats. The effects of injection volume, speed, laterality and influence of increased intracranial pressure(ICP) in normal and hydrocephalic cats on the PVI value were evaluated. The results were as follows; 1) Larger injection volume, increased ICP by continuous infusion, and presence of ventriculomegaly made the PVI value significantly higher(p<0.01, p<0.001, p<0.05, respectively). 2) Rapid injection made the PVI value significantly lower(p<0.01). 3) Increase of ICP accentuated the effects of injection volume and speed significantly(p<0.01). 4) There was no difference between the PVI values measured with injection into the ipsilateral lateral ventricle and those measured with injection into the cantralateral lateral ventricle. 5) With the above results, it is considered advisable to perform the PVI study with constant injection volume, speed and ICP.
