CO2 measurements during transcranial Doppler examinations in headache patients: methodological considerations

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

CO2 measurements during transcranial Doppler examinations in headache patients : methodological considerations. / Thomsen, L L; Iversen, Helle Klingenberg.

In: Cephalalgia : an international journal of headache, Vol. 14, No. 3, 06.1994, p. 245-7.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Thomsen, LL & Iversen, HK 1994, 'CO2 measurements during transcranial Doppler examinations in headache patients: methodological considerations', Cephalalgia : an international journal of headache, vol. 14, no. 3, pp. 245-7.

APA

Thomsen, L. L., & Iversen, H. K. (1994). CO2 measurements during transcranial Doppler examinations in headache patients: methodological considerations. Cephalalgia : an international journal of headache, 14(3), 245-7.

Vancouver

Thomsen LL, Iversen HK. CO2 measurements during transcranial Doppler examinations in headache patients: methodological considerations. Cephalalgia : an international journal of headache. 1994 Jun;14(3):245-7.

Author

Thomsen, L L ; Iversen, Helle Klingenberg. / CO2 measurements during transcranial Doppler examinations in headache patients : methodological considerations. In: Cephalalgia : an international journal of headache. 1994 ; Vol. 14, No. 3. pp. 245-7.

Bibtex

@article{af10968cbd9145f5b58d4abe3b9948d4,
title = "CO2 measurements during transcranial Doppler examinations in headache patients: methodological considerations",
abstract = "Transcranial Doppler (TCD) examinations are increasingly being used in studies of headache pathophysiology. Because blood velocity is highly dependent on PCO2, these parameters should be measured simultaneously. The most common way of performing measurements during TCD examinations is as end-tidal pCO2 with a capnograph. When patients are nauseated and vomit, as in migraine, the mask or mouthpiece connected to the capnograph represents a problem. We therefore evaluated whether a transcutaneous pCO2 electrode was as useful as the capnograph for pCO2 measurements in TCD examinations. We conclude that this is not the case, and recommend capnographic end-tidal pCO2 measurements during TCD examinations. However, transcutaneous pCO2 measurements may represent a supplement to spot measurements of end-tidal pCO2 in stable conditions when long-term monitoring is needed, and the mask or mouthpiece of the capnograph has to be taken on and off between recordings.",
keywords = "Adult, Blood Flow Velocity, Blood Gas Monitoring, Transcutaneous, Brain, Carbon Dioxide, Female, Headache, Humans, Male, Middle Aged, Migraine Disorders, Monitoring, Physiologic, Tidal Volume, Ultrasonography, Doppler, Transcranial",
author = "Thomsen, {L L} and Iversen, {Helle Klingenberg}",
year = "1994",
month = jun,
language = "English",
volume = "14",
pages = "245--7",
journal = "Cephalalgia",
issn = "0800-1952",
publisher = "SAGE Publications",
number = "3",

}

RIS

TY - JOUR

T1 - CO2 measurements during transcranial Doppler examinations in headache patients

T2 - methodological considerations

AU - Thomsen, L L

AU - Iversen, Helle Klingenberg

PY - 1994/6

Y1 - 1994/6

N2 - Transcranial Doppler (TCD) examinations are increasingly being used in studies of headache pathophysiology. Because blood velocity is highly dependent on PCO2, these parameters should be measured simultaneously. The most common way of performing measurements during TCD examinations is as end-tidal pCO2 with a capnograph. When patients are nauseated and vomit, as in migraine, the mask or mouthpiece connected to the capnograph represents a problem. We therefore evaluated whether a transcutaneous pCO2 electrode was as useful as the capnograph for pCO2 measurements in TCD examinations. We conclude that this is not the case, and recommend capnographic end-tidal pCO2 measurements during TCD examinations. However, transcutaneous pCO2 measurements may represent a supplement to spot measurements of end-tidal pCO2 in stable conditions when long-term monitoring is needed, and the mask or mouthpiece of the capnograph has to be taken on and off between recordings.

AB - Transcranial Doppler (TCD) examinations are increasingly being used in studies of headache pathophysiology. Because blood velocity is highly dependent on PCO2, these parameters should be measured simultaneously. The most common way of performing measurements during TCD examinations is as end-tidal pCO2 with a capnograph. When patients are nauseated and vomit, as in migraine, the mask or mouthpiece connected to the capnograph represents a problem. We therefore evaluated whether a transcutaneous pCO2 electrode was as useful as the capnograph for pCO2 measurements in TCD examinations. We conclude that this is not the case, and recommend capnographic end-tidal pCO2 measurements during TCD examinations. However, transcutaneous pCO2 measurements may represent a supplement to spot measurements of end-tidal pCO2 in stable conditions when long-term monitoring is needed, and the mask or mouthpiece of the capnograph has to be taken on and off between recordings.

KW - Adult

KW - Blood Flow Velocity

KW - Blood Gas Monitoring, Transcutaneous

KW - Brain

KW - Carbon Dioxide

KW - Female

KW - Headache

KW - Humans

KW - Male

KW - Middle Aged

KW - Migraine Disorders

KW - Monitoring, Physiologic

KW - Tidal Volume

KW - Ultrasonography, Doppler, Transcranial

M3 - Journal article

C2 - 7954748

VL - 14

SP - 245

EP - 247

JO - Cephalalgia

JF - Cephalalgia

SN - 0800-1952

IS - 3

ER -

ID: 128984251