Occipitoatlantic decompression improves blood flow to the brain

Occipitoatlantic decompression improves blood flow to the brain

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Laut Roberts et al. (2021) nahm die enddiastolische Geschwindigkeit nach der Ausführung einer okzipitoatlantischen Dekompression (OAD) (=Technik für das Atlantookzipitalgelenk, Liem 2018, beidseitige Dekoaptation des Atlantookzipitalgelenks und Dekompression der Pars condylaris Liem 2020) in der mittleren Hirnarterie (MCA), der inneren Karotisarterie (ICA) und der Vertebralarterie (VA) zu (alle p<0,001); nach der Scheinberührung trat keine Veränderung auf (alle p>0,05). Dies könnte eine Erklärung sein, wie eine osteopathische Manipulationsbehandlung die Symptome bei Patienten mit Kopfschmerzen lindert (Voigt et al 2011).

Objective: To investigate blood flow in the MCA, ICA and VA before and after occipitoatlantic decompression (OAD) using Doppler sonography.

Methods: Thirty healthy osteopathic students (11 males, 19 females; mean age 24 years) in their first year of study at the Kirksville College of Osteopathic Medicine of A.T. Still University participated in a randomised, single-blinded crossover study with two treatments over two time periods. Participants were randomly assigned to one of 2 treatment methods: OAD or sham touch. After one week, participants returned to have the other treatment. Blood flow parameters - peak systolic velocity (PSV) and end-diastolic velocity (EDV) - in the middle cerebral artery (MCA), internal carotid artery (ICA) and vertebral artery (VA) were assessed before, immediately after, 5 minutes after and 10 minutes after treatment. Differences in PSV, EDV, heart rate (HR) and blood pressure (BP) for both interventions were analysed for the four time points using mixed effects models.

Ergebnis: Die EDV war zu allen Nachbehandlungszeitpunkten nach der OAD im MCA, ICA und VA größer als nach der Scheinberührung (alle p<0,001).

Conclusion: There was an increase in EDV in the large cranial arteries after OAD, but not after sham treatment. The exact mechanism of this increase is not known. Parasympathetic stimulation via secretion of vasodilating neurotransmitters or a decrease in external tissue pressure on the internal carotid artery (ICA) and on the vertebral artery (VA) are suspected, with the resulting flow causing further dilatation in the middle cerebral artery (MCA).

Roberts B, Makar AE, Canaan R, Pazdernik V, Kondrashova T. Effect of occipitoatlantal decompression on cerebral blood flow dynamics as evaluated by Doppler ultrasonography. J Osteopath Med. 2021 Feb 1;121(2):171-179. doi: 10.1515/jom-2020-0100. 

https://pubmed.ncbi.nlm.nih.gov/33567080/

Voigt, K, Liebnitzky, J, Burmeister, U, et al.. Efficacy of osteopathic manipulative treatment of female patients with migraine: results of a randomized controlled trial. J Altern Complement Med. 2011;17(3):225-230.

Liem T. Praxis der Kraniosakralen Osteopathie, 2020, Thieme, Stuttgart.

Liem T. Craniosacral osteopathy, 2018; Thieme, Stuttgart.

Occipitoatlantic decompression improves blood flow to the brain

According to Roberts et al. (2021), after performing occipitoatlantic decompression (OAD) (=technique for the atlantooccipital joint, Liem 2018, bilateral decoaptation of the atlantooccipital joint and decompression of the pars condylaris Liem 2020), end-diastolic velocity increased in the middle cerebral artery (MCA), internal carotid artery (ICA) and vertebral artery (VA) (all p<0.001); no change occurred after sham contact (all p>0.05). This could be an explanation of how osteopathic manipulative treatment alleviates symptoms in patients with headache (Voigt et al 2011).

Objective: To investigate blood flow in the MCA, ICA and VA before and after occipitoatlantic decompression (OAD) using Doppler sonography.

Methods: Thirty healthy osteopathic students (11 men, 19 women; mean age 24 years) in their first year of study at the Kirksville College of Osteopathic Medicine of A.T. Still University participated in a randomised, single-blinded crossover study with two treatments over two periods. Participants were randomly assigned to one of 2 treatment methods: OAD or sham touch. After one week, participants returned to have the other treatment. Blood flow parameters - peak systolic velocity (PSV) and end-diastolic velocity (EDV) - in the middle cerebral artery (MCA), internal carotid artery (ICA) and vertebral artery (VA) were assessed before, immediately after, 5 minutes after and 10 minutes after treatment. Differences in PSV, EDV, heart rate (HR) and blood pressure (BP) for both interventions were analysed for the four time points using mixed effects models.

Results: EDV was greater at all post-treatment time points after OAD in MCA, ICA and VA than after sham contact (all p<0.001).

Conclusion: There was an increase in EDV in the large cranial arteries after OAD, but not after sham treatment. The exact mechanism of this increase is not known. Parasympathetic stimulation via secretion of vasodilating neurotransmitters or a decrease in external tissue pressure on the internal carotid artery (ICA) and on the vertebral artery (VA) are suspected, with the resulting flow causing further dilatation in the middle cerebral artery (MCA).

Roberts B, Makar AE, Canaan R, Pazdernik V, Kondrashova T. Effect of occipitoatlantal decompression on cerebral blood flow dynamics as evaluated by Doppler ultrasonography. J Osteopath Med. 2021 Feb 1;121(2):171-179. doi: 10.1515/jom-2020-0100. 

https://pubmed.ncbi.nlm.nih.gov/33567080/

Voigt, K, Liebnitzky, J, Burmeister, U, et al.. Efficacy of osteopathic manipulative treatment of female patients with migraine: results of a randomized controlled trial. J Altern Complement Med. 2011;17(3):225-230.

Liem T. Praxis der Kraniosakralen Osteopathie, 2020, Thieme, Stuttgart.

Liem T. Craniosacral osteopathy, 2018; Thieme, Stuttgart.

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