Editing Combined hyperlipidemia (section)

{{More citations needed|date=May 2009}}
{{Infobox medical condition (new)
| name            = Combined hyperlipidemia
| synonyms        =   '''Multiple-type hyperlipoproteinemia'''
| image           = Autosomal dominant - en.svg
| alt             =
| caption         = Combined hyperlipidemia is inherited in an autosomal dominant manner.
| pronounce       =
| field           =
| symptoms        =
| complications   =
| onset           =
| duration        =
| types           =
| causes          =
| risks           =
| diagnosis       =
| differential    =
| prevention      =
| treatment       =
| medication      =
| prognosis       =
| frequency       =
| deaths          =
}}
'''Combined hyperlipidemia''' (or -aemia) is a commonly occurring form of [[hypercholesterolemia]] (elevated [[cholesterol]] levels) characterised by increased [[Low-density lipoprotein|LDL]] and [[triglyceride]] concentrations, often accompanied by decreased [[High density lipoprotein|HDL]].<ref name="Andrews">{{cite book |author1=James, William D. |author2=Berger, Timothy G. |title=Andrews' Diseases of the Skin: clinical Dermatology |publisher=Saunders Elsevier |year=2006 |isbn=978-0-7216-2921-6 |display-authors=etal}}</ref>{{Rp|534|date=May 2009}} On lipoprotein [[electrophoresis]] (a test now rarely performed) it shows as a  [[hyperlipoproteinemia type II]]B. It is the most commonly inherited lipid disorder, occurring in around one in 200 persons. In fact, almost one in five individuals who develop [[coronary heart disease]] before the age of 60 have this disorder.

The elevated [[triglyceride]] levels (>5 [[mmol]]/[[litre|L]]) are generally due to an increase in very low density lipoprotein ([[VLDL]]), a class of [[lipoprotein]]s prone to cause [[atherosclerosis]].