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The impact of early perfusion CT measurement after extracranial-intracranial bypass surgery

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The impact of early perfusion CT measurement after extracranial-intracranial bypass surgery : results of a pilot study. / Eicker, Sven O; Beseoglu, Kerim; Etminan, Nima; Turowski, Bernd; Steiger, Hans-Jakob; Hänggi, Daniel.

In: ACTA NEUROCHIR SUPPL, Vol. 112, 2011, p. 25-9.

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

Harvard

Eicker, SO, Beseoglu, K, Etminan, N, Turowski, B, Steiger, H-J & Hänggi, D 2011, 'The impact of early perfusion CT measurement after extracranial-intracranial bypass surgery: results of a pilot study', ACTA NEUROCHIR SUPPL, vol. 112, pp. 25-9. https://doi.org/10.1007/978-3-7091-0661-7_5

APA

Eicker, S. O., Beseoglu, K., Etminan, N., Turowski, B., Steiger, H-J., & Hänggi, D. (2011). The impact of early perfusion CT measurement after extracranial-intracranial bypass surgery: results of a pilot study. ACTA NEUROCHIR SUPPL, 112, 25-9. https://doi.org/10.1007/978-3-7091-0661-7_5

Vancouver

Eicker SO, Beseoglu K, Etminan N, Turowski B, Steiger H-J, Hänggi D. The impact of early perfusion CT measurement after extracranial-intracranial bypass surgery: results of a pilot study. ACTA NEUROCHIR SUPPL. 2011;112:25-9. https://doi.org/10.1007/978-3-7091-0661-7_5

Bibtex

@article{b8b965f6bff84cd88bf712b08c2286a6,
title = "The impact of early perfusion CT measurement after extracranial-intracranial bypass surgery: results of a pilot study",
abstract = "OBJECTIVE: The early postoperative period after extracranial-intracranial bypass surgery carries the risk of hypo- as well as hyperperfusion. The purpose of this study is to evaluate early perfusion computerized tomography (PCT) after revascularization to assess the hemodynamic balance.METHODS: Standard cerebral bypass surgery was performed on ten patients, and PCT measurement within 6 h after surgery was performed and analyzed.RESULTS: The hemisphere with reduced cerebral vascular reserve (CVR) showed a regional cerebral baseline blood flow (CBF) of 5.58 ± 1.69 and a regional cerebral baseline blood volume (CBV) of 2.41 ± 0.76 before surgery. Mean transit time (MTT) was 4.16 ± 0.9 s and time to peak (TTP) 3.25 ± 1.62 s. After the procedure values changed significantly (p < 0.05) in eight patients who had no complications. Patency rate was documented in all patients by angiography. One patient showed a decrease of CBF and CBV and an increase of MTT and TTP. Clinically the patient developed a transient hemiparesis immediately after surgery. Another patient showed the expected increase in CBF and CBV; however, MTT and TTP also increased. A delayed hemiparesis probably related to hyperperfusion occurred with improvement in the follow-up.CONCLUSION: This pilot study demonstrates that early PCT parameters can provide immediate and detailed information about hemodynamic parameters and seems to have a predictive value regarding the morbidity of hypo- or hyperperfusion in patients after cerebral bypass surgery.",
keywords = "Adolescent, Adult, Aged, Carotid Artery Diseases, Cerebral Revascularization, Cerebrovascular Circulation, Female, Follow-Up Studies, Hemodynamics, Humans, Male, Middle Aged, Perfusion, Pilot Projects, Retrospective Studies, Tomography, X-Ray Computed, Treatment Outcome, Young Adult",
author = "Eicker, {Sven O} and Kerim Beseoglu and Nima Etminan and Bernd Turowski and Hans-Jakob Steiger and Daniel H{\"a}nggi",
year = "2011",
doi = "10.1007/978-3-7091-0661-7_5",
language = "English",
volume = "112",
pages = "25--9",
journal = "ACTA NEUROCHIR SUPPL",
issn = "0065-1419",
publisher = "Springer Wien",

}

RIS

TY - JOUR

T1 - The impact of early perfusion CT measurement after extracranial-intracranial bypass surgery

T2 - results of a pilot study

AU - Eicker, Sven O

AU - Beseoglu, Kerim

AU - Etminan, Nima

AU - Turowski, Bernd

AU - Steiger, Hans-Jakob

AU - Hänggi, Daniel

PY - 2011

Y1 - 2011

N2 - OBJECTIVE: The early postoperative period after extracranial-intracranial bypass surgery carries the risk of hypo- as well as hyperperfusion. The purpose of this study is to evaluate early perfusion computerized tomography (PCT) after revascularization to assess the hemodynamic balance.METHODS: Standard cerebral bypass surgery was performed on ten patients, and PCT measurement within 6 h after surgery was performed and analyzed.RESULTS: The hemisphere with reduced cerebral vascular reserve (CVR) showed a regional cerebral baseline blood flow (CBF) of 5.58 ± 1.69 and a regional cerebral baseline blood volume (CBV) of 2.41 ± 0.76 before surgery. Mean transit time (MTT) was 4.16 ± 0.9 s and time to peak (TTP) 3.25 ± 1.62 s. After the procedure values changed significantly (p < 0.05) in eight patients who had no complications. Patency rate was documented in all patients by angiography. One patient showed a decrease of CBF and CBV and an increase of MTT and TTP. Clinically the patient developed a transient hemiparesis immediately after surgery. Another patient showed the expected increase in CBF and CBV; however, MTT and TTP also increased. A delayed hemiparesis probably related to hyperperfusion occurred with improvement in the follow-up.CONCLUSION: This pilot study demonstrates that early PCT parameters can provide immediate and detailed information about hemodynamic parameters and seems to have a predictive value regarding the morbidity of hypo- or hyperperfusion in patients after cerebral bypass surgery.

AB - OBJECTIVE: The early postoperative period after extracranial-intracranial bypass surgery carries the risk of hypo- as well as hyperperfusion. The purpose of this study is to evaluate early perfusion computerized tomography (PCT) after revascularization to assess the hemodynamic balance.METHODS: Standard cerebral bypass surgery was performed on ten patients, and PCT measurement within 6 h after surgery was performed and analyzed.RESULTS: The hemisphere with reduced cerebral vascular reserve (CVR) showed a regional cerebral baseline blood flow (CBF) of 5.58 ± 1.69 and a regional cerebral baseline blood volume (CBV) of 2.41 ± 0.76 before surgery. Mean transit time (MTT) was 4.16 ± 0.9 s and time to peak (TTP) 3.25 ± 1.62 s. After the procedure values changed significantly (p < 0.05) in eight patients who had no complications. Patency rate was documented in all patients by angiography. One patient showed a decrease of CBF and CBV and an increase of MTT and TTP. Clinically the patient developed a transient hemiparesis immediately after surgery. Another patient showed the expected increase in CBF and CBV; however, MTT and TTP also increased. A delayed hemiparesis probably related to hyperperfusion occurred with improvement in the follow-up.CONCLUSION: This pilot study demonstrates that early PCT parameters can provide immediate and detailed information about hemodynamic parameters and seems to have a predictive value regarding the morbidity of hypo- or hyperperfusion in patients after cerebral bypass surgery.

KW - Adolescent

KW - Adult

KW - Aged

KW - Carotid Artery Diseases

KW - Cerebral Revascularization

KW - Cerebrovascular Circulation

KW - Female

KW - Follow-Up Studies

KW - Hemodynamics

KW - Humans

KW - Male

KW - Middle Aged

KW - Perfusion

KW - Pilot Projects

KW - Retrospective Studies

KW - Tomography, X-Ray Computed

KW - Treatment Outcome

KW - Young Adult

U2 - 10.1007/978-3-7091-0661-7_5

DO - 10.1007/978-3-7091-0661-7_5

M3 - SCORING: Journal article

C2 - 21691983

VL - 112

SP - 25

EP - 29

JO - ACTA NEUROCHIR SUPPL

JF - ACTA NEUROCHIR SUPPL

SN - 0065-1419

ER -