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== Summary == | |||
{{Information | |||
|Description = A lady with Romano-Ward syndrome. | |||
Long QT interval | |||
The QT interval normally varies with heart rate - becoming shorter at faster rates. It is usually corrected using the cycle length (R-R interval) as shown opposite. | |||
normal QTc = 0.42 seconds | |||
Romano-Ward syndrome is an autosomal dominantly inherited form of long QT interval and there is a risk of recurrent ventricular tachycardia, particularly Torsade de Pointes. | |||
Ventricular premature beats (VPBs) | |||
2 ventricular premature beats are also shown in this ECG | |||
They are | |||
broad | |||
occur earlier than normal | |||
and are followed by a full compensatory pause (the distance between the normal beats before and after the VPB is equal to twice the normal cycle length). | |||
with permision from the site of Dr. Dean Jenkins | |||
|Category = [[Case_reports_from_Michael_Rosengarten|Case reports by Michael Rosengarten]] | |||
|Source = EKG World Encyclopedia http://cme.med.mcgill.ca/php/index.php , courtesy of Michael Rosengarten BEng, MD.McGill | |||
|Date = 2012 | |||
|Author = Michael Rosengarten BEng, MD.McGill | |||
|Permission = {{by-nc-sa-3.0}} | |||
|other_versions = None | |||
}} | |||