Vertebral Artery Dissection

Publication Title: 
The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques

BACKGROUND AND OBJECTIVES: Internal carotid artery dissection has been extensively studied and well-described. Although there has been a recent increase in the number of reported cases of vertebral artery (VA) dissection, the clinical variety of presentation and the early warning symptoms have not been well-described before. Our objectives in this study include: (1) To determine the early symptoms and warning signs which may help the clinician in the early identification and treatment of patients with VA dissection.

Author(s): 
Saeed, A. B.
Shuaib, A.
Al-Sulaiti, G.
Emery, D.
Publication Title: 
Journal of Neuro-Ophthalmology: The Official Journal of the North American Neuro-Ophthalmology Society

Cervical manipulation, specifically chiropractic manipulation, is an important cause of vertebrobasilar and occasionally carotid distribution strokes. Neuro-ophthalmologic findings are a common and at times relatively isolated feature of cervical manipulation-induced stroke. A case of chiropractic-induced occipital lobe infarction with homonymous hemianopsia is reported, and the literature regarding neuro-ophthalmologic findings is reviewed.

Author(s): 
Devereaux, M. W.
Publication Title: 
Stroke; a Journal of Cerebral Circulation

BACKGROUND AND PURPOSE: Several reports have linked chiropractic manipulation of the neck to dissection or occlusion of the vertebral artery. However, previous studies linking such strokes to neck manipulation consist primarily of uncontrolled case series. We designed a population-based nested case-control study to test the association. METHODS: Hospitalization records were used to identify vertebrobasilar accidents (VBAs) in Ontario, Canada, during 1993-1998. Each of 582 cases was age and sex matched to 4 controls from the Ontario population with no history of stroke at the event date.

Author(s): 
Rothwell, D. M.
Bondy, S. J.
Williams, J. I.
Publication Title: 
Journal of Neurology

Despite the increasing incidence of cervical artery dissection (CAD) due to chiropractic manipulation of the cervical spine, risk factors predisposing to vascular damage are still unknown. In the present study we measured fasting total plasma homocysteine (tHcy) concentration in 4 subjects with manipulation-related CAD selected from a larger series of patients with spontaneous dissection of the neck arteries (sCAD) and in a group of 36 control subjects. C677T MTHFR genotypes and 844ins68bp CBS genotypes were also determined.

Author(s): 
Pezzini, Alessandro
Del Zotto, Elisabetta
Padovani, Alessandro
Publication Title: 
Nō to Shinkei = Brain and Nerve

A-38-year-old man suddenly developed nausea, vomiting and vertigo during chiropractic neck manipulation. This was followed by right hemiplegia, right deep sensory disturbance and left hypoglossal nerve palsy, consistent with the medial medullary infarction (Dejerine syndrome). The MRI revealed infarction at left medial part of the medulla. The vertebral angiogram and MRA showed marked narrowing of the left vertebral artery. X-rays of the cervical spine showed no spondylosis, dislocation nor osteolysis of the odontoid process.

Author(s): 
Yokota, Jun-Ichi
Amakusa, Yayoi
Tomita, Yutaka
Takahashi, Shin-Ichi
Publication Title: 
Neuroradiology

Single-vessel cervical arterial dissections typically occur in young adults and are a common cause of cerebral ischemia and stroke. Although the pathogenesis of multivessel dissection is unclear, it is thought to be a consequence of underlying collagen vascular disease. We present a 34-year-old previously healthy man who developed bilateral internal carotid and vertebral artery dissection following chiropractic manipulation.

Author(s): 
Nadgir, R. N.
Loevner, L. A.
Ahmed, T.
Moonis, G.
Chalela, J.
Slawek, K.
Imbesi, S.
Publication Title: 
Neurology

OBJECTIVE: To determine whether spinal manipulative therapy (SMT) is an independent risk factor for cervical artery dissection. METHODS: Using a nested case-control design, the authors reviewed all patients under age 60 with cervical arterial dissection (n = 151) and ischemic stroke or TIA from between 1995 and 2000 at two academic stroke centers. Controls (n = 306) were selected to match cases by sex and within age strata. Cases and controls were solicited by mail, and respondents were interviewed using a structured questionnaire.

Author(s): 
Smith, W. S.
Johnston, S. C.
Skalabrin, E. J.
Weaver, M.
Azari, P.
Albers, G. W.
Gress, D. R.
Publication Title: 
Neurology

Cervical artery dissection (CAD) recurrences are rare but the risk could be higher during the first month. Twenty-seven consecutive patients admitted for an acute CAD were investigated using a standardized imaging protocol. An early asymptomatic recurrence was observed in three patients 49 to 53 days after the initial diagnosis. Anticoagulation was maintained and the prognosis remained good. Early CAD recurrences may have been underestimated previously, because asymptomatic recurrences seem to be more frequent than symptomatic ones.

Author(s): 
Touzé, E.
Oppenheim, C.
Zuber, M.
Méary, E.
Meder, J. F.
Mas, J. L.
Publication Title: 
Der Orthopäde

A 31-year-old woman suffered a brainstem infarction secondary to chiropractic neck manipulation. A dissection of both vertebral arteries could be demonstrated by MR tomography. This case report should alert therapists to be aware of vertebrobasilar complications after spinal manipulations.

Author(s): 
Oehler, J.
Gandjour, J.
Fiebach, J.
Schwab, S.
Publication Title: 
Journal of Neurology

The highly variable clinical course of cervical artery dissections still poses a major challenge to the treating physician. This study was conducted (1) to describe the differences in clinical and angiographic presentation of patients with carotid and vertebral artery dissections (CAD, VAD), (2) to define the circumstances that are related to bilateral arterial dissections, and (3) to determine factors that predict a poor outcome. Retrospectively and by standardised interview, we studied 126 patients with cervical artery dissections.

Author(s): 
Dziewas, Rainer
Konrad, Carsten
Dräger, Bianca
Evers, Stefan
Besselmann, Michael
Lüdemann, Peter
Kuhlenbäumer, Gregor
Stögbauer, Florian
Ringelstein, E. Bernd

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