Journal Information
Vol. 10. Issue 3.
Pages 219-225 (January 1999)
Share
Share
Download PDF
More article options
Vol. 10. Issue 3.
Pages 219-225 (January 1999)
Medición bilateral de la saturación yugular de oxígeno
Bilateral jugular venous oxygen saturation measurements
Visits
1770
M. Pérez Márquez, A.J. Betbesé Roig, G. Rialp Cervera, J.A. Santos Rodríguez, A. Net, L. Marruecos
Servicio de Cuidados Intensivos. Hospital de la Santa Creu i Sant Pau. Universitat Autonoma de Barcelona
This item has received
Article information
Summary
Objective

The objetive of this study was to obtain information about cerebral hemodynamics through retrograde cannulation of both internal jugular veins and monitoring jugular bulb oxigen saturation.

Material and methods

Fourteen (14) patients admitted to our ICU between July of 1994 and April of 1995 were prospectively studied. The intracranial pressure (ICP) was monitored and bilateral cannulation of the internal yugular vein was performed. In 9 patients, one of the two veins was channeled with an optic fiber catheter for continous monitoring at oxigen jugular saturation (SyO2)’ Simultaneus samples were obtained every 8 hours from both jugular veins for measuring SyO2 whenever therapeutic changes were needed or before an increase in the ICP was observed. A total of 140 measurements were performed (mean 10 per patient). A variance analysis, t of student and simple linear regression analysis of the pars obtained in the SyO2 were performed. Furthermore we studied the influence of the type of intracranial pathology as assessed by cranial computerized tomography (CT), as well as at different levels of raised IPC.

Results

Average monitoring time was 7.2 days (311). The brain injury in the CT was considered focal in 8 patients and mixed (focal + diffused) in 6. The correlation between the left and right SyO2 was r=0.68 (p<0.005). In patients with focal CT lesions correlation was r=0.58 (p<0.005), with true regression Y= 32 + 04X. Mean values were 61.8±9% for the right jugular and 67.6±12% for the left (p<0.005). The correlation in patients with mixed CT lesions was r=0.79 (p<0.005) with true regression Y= 18 + O.72X. The average value was 70.9±11% for the rigth jugular and 71±12% for the left jugular vein (difference not significant). The correlation coefficient for ICP levels of <20, >20, >30 and >40mm Hg was r=0.66, r=0.79, r=0.85 and r=0.89, respectively. Clinical discordance between bilateral measurements was over 30% of these in 50% of the patients.

Conclusion

The SyO2 obtained through retrograde cannulation from both jugular veins maintains a correct positive correlation that improves in intracranial hypertension situations. Correlation is better in patients with mixed CT lesion than in those with focal pathology. Our study could not determine which of the two jugular veins provided more reliable information of about intracranial hemodynamics. Consequently, we do not support the used of bilateral SyO2 monitoring in the clinical rutine.

Key words:
Acute head injury
Cerebral bood flow
Jugular vein

Article

These are the options to access the full texts of the publication Neurocirugía (English edition)
Member
Member of the Sociedad Española de Neurocirugía

If it is the first time you have accessed you can obtain your credentials by contacting Elsevier Spain in suscripciones@elsevier.com or by calling our Customer Service at902 88 87 40 if you are calling from Spain or at +34 932 418 800 (from 9 to 18h., GMT + 1) if you are calling outside of Spain.

If you already have your login data, please click here .

If you have forgotten your password you can you can recover it by clicking here and selecting the option ¿I have forgotten my password¿.

Subscriber
Subscriber

If you already have your login data, please click here .

If you have forgotten your password you can you can recover it by clicking here and selecting the option “I have forgotten my password”
Subscribe
Subscribe to

Neurocirugía (English edition)

Purchase
Purchase article

Purchasing article the PDF version will be downloaded

Price 19.34 €

Purchase now
Contact
Phone for subscriptions and reporting of errors
From Monday to Friday from 9 a.m. to 6 p.m. (GMT + 1) except for the months of July and August which will be from 9 a.m. to 3 p.m.
Calls from Spain
932 415 960
Calls from outside Spain
+34 932 415 960
Email
Idiomas
Neurocirugía (English edition)
Article options
Tools
es en

¿Es usted profesional sanitario apto para prescribir o dispensar medicamentos?

Are you a health professional able to prescribe or dispense drugs?