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Thanks lots Sharon and Catherine for your replies. I need a medical dictionary and about a day to make sense of the article you referred to Catherine ;-) It's all a bit unclear, but really, really useful for the report that I'm about to do. Best wishes, S :-) > Date: Fri, 15 Jun 2012 13:09:23 +0100 > From: [log in to unmask] > Subject: Re: [OCC-HEALTH] SVT & nights > To: [log in to unmask] > > Dear Sarah > > Systematic investigation of the relation between night shift work and > PSVT is lacking. Given that the circadian drop in catecholamines usually > encountered during nighttime sleep is lost or attenuated, and that > nocturnal quiescent period is associated with a decreased rate of PSVT, > it could be speculated that some persons with PSVT who work the night > shift work would fail to have a respite from these tachyarrhythmias over > a 24-hour period. > > I do not know the circumstances of your employee - but is likely to be > in specialist cardiological care - I would seek a specialist opinion if > unclear. Link for your information. > > www.workhealth.org/Occ.%20Cardiology/OC%20PSVT.html > > Best wishes > > Catherine Mackay > > On Fri, 15 Jun 2012 11:31:03 +0100, Sarah Witwicka wrote: > > Argh! Help! Has anyone please got info', opinions, experience of SVTs > > being brought on/exacerbated by nights? > > > > S :-) > > > > ******************************** > > Please remove this footer before replying. > > > > OCC-HEALTH ARCHIVES: > > http://www.jiscmail.ac.uk/lists/occ-health.html > > > > CONFERENCES AND STUDY DAYS: > > http://www.jiscmail.ac.uk/cgi-bin/filearea.cgi?LMGT1=OCC-HEALTH > > -- > Catherine Mackay > MSc (Work Psychol.) Grad.IOSH > l: +44 131 445 4448 > m: +44 7956439163 > e: [log in to unmask] > w: cmkhealthatwork.com (under reconstruction) > > ******************************** > Please remove this footer before replying. > > OCC-HEALTH ARCHIVES: > http://www.jiscmail.ac.uk/lists/occ-health.html > > CONFERENCES AND STUDY DAYS: > http://www.jiscmail.ac.uk/cgi-bin/filearea.cgi?LMGT1=OCC-HEALTH ******************************** Please remove this footer before replying. OCC-HEALTH ARCHIVES: http://www.jiscmail.ac.uk/lists/occ-health.html CONFERENCES AND STUDY DAYS: http://www.jiscmail.ac.uk/cgi-bin/filearea.cgi?LMGT1=OCC-HEALTH