Document Detail


An avoidable methodological failure in intracranial pressure monitoring using fiberoptic or solid state devices.
MedLine Citation:
PMID:  9779145     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Failure of intraventricular pressure (IVP) measurement in case of catheter blockage is believed to be eliminated by using intraventricular microtransducers. We report about an avoidable methodological error, which may affect the reliability of IVP measurement with these devices. Intraventricular fiberoptic or solid state devices were implanted in 43 patients considered to be at risk for catheter occlusion. Two different types were used: devices where the transducer is placed inside the ventriculostomy catheter (Type A), and devices where the transducer is integrated in the external surface of the catheter (Type B). Of the 15 patients treated with Type A devices, no reliable pressure recording could be obtained in three patients where ventricular puncture was not successful. In four cases of the remaining 12 patients, periods of erroneous pressure readings were revealed. After opening of CSF drainage, all Type A devices failed to reflect real IVP. In patients treated with Type B devices, no erroneous pressure recording could be identified, irrespective if CSF drainage was performed or not. Transducers, which are simply placed inside the ventriculostomy catheter require fluid coupling. They may fail, either during CSF drainage or when the catheter is blocked or placed within the parenchyma.
Authors:
A Raabe; R Stöckel; D Hohrein; J Schöche
Related Documents :
10212355 - Automated blood pressure measurement: state of the market in 1998 and the need for an i...
3760365 - Use of a venous assist device after repair of complex lesions of the right heart.
15597655 - Forearm compression by laparoscopic hand-assist devices.
6234435 - A simple force transducer flow meter system suitable for the langendorff heart preparat...
16797665 - Acoustic wave propagation in high-pressure system.
1359825 - Effects of orally administered beta-adrenergic blockers and calcium-channel blockers on...
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Acta neurochirurgica. Supplement     Volume:  71     ISSN:  0065-1419     ISO Abbreviation:  Acta Neurochir. Suppl.     Publication Date:  1998  
Date Detail:
Created Date:  1999-01-14     Completed Date:  1999-01-14     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  100962752     Medline TA:  Acta Neurochir Suppl     Country:  AUSTRIA    
Other Details:
Languages:  eng     Pagination:  59-61     Citation Subset:  IM    
Affiliation:
Department of Neurosurgery, University of Leipzig, Federal Republic of Germany.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Catheters, Indwelling*
Cerebral Ventricles / physiopathology
Equipment Design
Equipment Failure Analysis
Fiber Optic Technology / instrumentation*
Humans
Intracranial Hypertension / diagnosis*,  etiology,  physiopathology
Intracranial Pressure / physiology*
Monitoring, Physiologic / instrumentation*
Transducers, Pressure*
Ventriculostomy / instrumentation*

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


Previous Document:  Interhemispheric pressure gradients in severe head trauma in humans.
Next Document:  Influence of hyperventilation on brain tissue-PO2, PCO2, and pH in patients with intracranial hypert...