Fw: [aca-members] Not only YEAH....

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From the ACA list serve.

Vern Saboe

[aca-members] Not only YEAH....

> but HELL YEAH!!

>

> SPINE Volume 33, Number 4S, pp S176--S183

> Results of a Population-Based Case-Control and Case-Crossover Study

> J. Cassidy, DC, PhD, DrMedSc,*+++ Eleanor Boyle, PhD,* Pierre

> Co^te´, DC, PhD,*+++§

> Yaohua He, MD, PhD,* Sheilah Hogg-, PhD,+§ L. Silver, MD,

> FRCPC,¶

> and J. Bondy, PhD+

>

> Study Design. Population-based, case-control and case-crossover study.

>

> Objective. To investigate associations between chiro-practic visits and

> vertebrobasilar artery (VBA) stroke and

> to contrast this with primary care physician (PCP) visitsand VBA stroke.

>

> Summary of Background Data. Chiropractic care is

> popularforneckpainandheadache,butmayincreasethe

> risk for VBA dissection and stroke. Neck pain and head-

> ache are common symptoms of VBA dissection, which

> commonly precedes VBA stroke.

> Methods. Cases included eligible incident VBA

> strokes admitted to Ontario hospitals from April 1, 1993

> to March 31, 2002. Four controls were age and gender

> matched to each case. Case and control exposures to

> chiropractors and PCPs were determined from health

> billing records in the year before the stroke date. In

> the case-crossover analysis, cases acted as their own

> controls.

> Results. There were 818 VBA strokes hospitalized in a

> population of more than 100 million person-years. In

> thoseaged45years,cases were about three times more

> likely to see a chiropractor or a PCP before their stroke

> than controls. Results were similar in the case control

> and case crossover analyses. There was no increased

> association between chiropractic visits and VBA stroke

> in those older than 45 years. Positive associations were

> found between PCP visits and VBA stroke in all age

> groups. Practitioner visits billed for headache and neck complaints

> were highly associated with subsequent VBA

> stroke.

> Conclusion. VBA stroke is a very rare event in the

> population. The increased risks of VBA stroke associated

> with chiropractic and PCP visits is likely due to patients

> with headache and neck pain from VBA dissection seek-

> ing care before their stroke. We found no evidence of

> excess risk of VBA stroke associated chiropractic care

> compared to primary care.

> Key words: vertebrobasilar stroke, case control stud-

> ies, case crossover studies, chiropractic, primary care,

> complications, neck pain. Spine 2008;33:S176--S183

>

>

> Larry Wyatt, DC, DACBR, FICC

> Professor of Clinical Sciences

> Texas Chiropractic College

>

> *Spine Docs Website and Discussion Group*

> http://www.spinedocsonline.com

>

> *Ordinary to Extraordinary Photography Blog*

> http://beauxsphotoblog.blogspot.com

>

> A man's intent can only be overshadowed by his actions...or lack

> thereof.-LHW

>

> 1/19/2008

>

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