TY - JOUR
T1 - Adenosine-induced flow arrest to facilitate intracranial aneurysm clip ligation
T2 - Dose-response data and safety profile
AU - Bebawy, John F.
AU - Gupta, Dhanesh K.
AU - Bendok, Bernard R.
AU - Hemmer, Laura B.
AU - Zeeni, Carine
AU - Avram, Michael J.
AU - Batjer, H. Hunt
AU - Koht, Antoun
PY - 2010/5
Y1 - 2010/5
N2 - Background: Adenosine-induced transient flow arrest has been used to facilitate clip ligation of intracranial aneurysms. However, the starting dose that is most likely to produce an adequate duration of profound hypotension remains unclear. We reviewed our experience to determine the dose-response relationship and apparent perioperative safety profile of adenosine in intracranial aneurysm patients. Methods: This case series describes 24 aneurysm clip ligation procedures performed under an anesthetic consisting of remifentanil, low-dose volatile anesthetic, and propofol in which adenosine was used. The report focuses on the doses administered; duration of systolic blood pressure <60 mm Hg (SBP<60 mm Hg); and any cardiovascular, neurologic, or pulmonary complications observed in the perioperative period. Results: A median dose of 0.34 mg/kg ideal body weight (range: 0.29-0.44 mg/kg) resulted in a SBP<60 mm Hg for a median of 57 seconds (range: 26-105 seconds). There was a linear relationship between the log-transformed dose of adenosine and the duration of a SBP<60 mm Hg (R 2 = 0.38). Two patients developed transient, hemodynamically stable atrial fibrillation, 2 had postoperative troponin levels >0.03 ng/mL without any evidence of cardiac dysfunction, and 3 had postoperative neurologic changes. Conclusions: For intracranial aneurysms in which temporary occlusion is impractical or difficult, adenosine is capable of providing brief periods of profound systemic hypotension with low perioperative morbidity. On the basis of these data, a dose of 0.3 to 0.4 mg/kg ideal body weight may be the recommended starting dose to achieve approximately 45 seconds of profound systemic hypotension during a remifentanil/low-dose volatile anesthetic with propofol induced burst suppression.
AB - Background: Adenosine-induced transient flow arrest has been used to facilitate clip ligation of intracranial aneurysms. However, the starting dose that is most likely to produce an adequate duration of profound hypotension remains unclear. We reviewed our experience to determine the dose-response relationship and apparent perioperative safety profile of adenosine in intracranial aneurysm patients. Methods: This case series describes 24 aneurysm clip ligation procedures performed under an anesthetic consisting of remifentanil, low-dose volatile anesthetic, and propofol in which adenosine was used. The report focuses on the doses administered; duration of systolic blood pressure <60 mm Hg (SBP<60 mm Hg); and any cardiovascular, neurologic, or pulmonary complications observed in the perioperative period. Results: A median dose of 0.34 mg/kg ideal body weight (range: 0.29-0.44 mg/kg) resulted in a SBP<60 mm Hg for a median of 57 seconds (range: 26-105 seconds). There was a linear relationship between the log-transformed dose of adenosine and the duration of a SBP<60 mm Hg (R 2 = 0.38). Two patients developed transient, hemodynamically stable atrial fibrillation, 2 had postoperative troponin levels >0.03 ng/mL without any evidence of cardiac dysfunction, and 3 had postoperative neurologic changes. Conclusions: For intracranial aneurysms in which temporary occlusion is impractical or difficult, adenosine is capable of providing brief periods of profound systemic hypotension with low perioperative morbidity. On the basis of these data, a dose of 0.3 to 0.4 mg/kg ideal body weight may be the recommended starting dose to achieve approximately 45 seconds of profound systemic hypotension during a remifentanil/low-dose volatile anesthetic with propofol induced burst suppression.
UR - http://www.scopus.com/inward/record.url?scp=77951755385&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951755385&partnerID=8YFLogxK
U2 - 10.1213/ANE.0b013e3181d65bf5
DO - 10.1213/ANE.0b013e3181d65bf5
M3 - Article
C2 - 20418302
AN - SCOPUS:77951755385
SN - 0003-2999
VL - 110
SP - 1406
EP - 1411
JO - Anesthesia and analgesia
JF - Anesthesia and analgesia
IS - 5
ER -