الفهرس 
Material and methodsOnly 14 pages are availabe for public view
 |  | from | 131 |  |  |
| | | from | 131 | | |
Abstract
This work was designed to study whether left ventricular mass and
the mitral inflow velocity pattern are more closely related to blood
pressure measured during dynamic exercise than to blood pressure
measured at rest.
This work included 50 healthy subjects aged 20-40 years with
normal blood pressure or borderline elevated blood pressure. They were
all males. They were chosen randomly at Benha University hospital
during the period from February 199X to September 1999.
For all persons included in this study, the following were done: full
history taking, thorough clinical examination, 12-lead resting E.C.G.,
laboratory examination, echocardiography to measure left ventricular
mass and peak mitral intlow velocity, and treadmill symptom limited
Bruce protocol to measure exercise systolic blood pressure at different
stages.
The left ventricular mass had positive significant correlation with
systolic blood pressure measured at rest and at various stages of exercise
(I, II, III, IV). The relation is highly significant at rest and decline with
exercise until reaching its lowest level at maximal stage of exercise, but
was still significant. Left ventricular mass was also significantly
positively correlated to resting heart rate, body weight and height but was
not related to exercise heart rate and age.
The ratio of late to early mitral· inflow velocity” AlE ratio” was
,’g,it,,,ntl, po’iti”I, c””I,ttd to ”,tolic bloodp”””u” ,””,,,00 at
rest on” at ””t ,to”, of ex”ti” but was no”da
ted
to ”,toli
t
, blood
p,’’’u’’. ,””,””d du!lngthe”,”aining ””gO’ ofex,,,i”. Th’ AlEratio
was ,ignif,,,ntl, +”oone””d to ”,ling h”rt rateandtobod’ w,igh’
but was not related to exercise heart rate: age or height.
CONCLUSiONS
v;. In conclusion, the left ventricular mass and mitral inflow velocity
were ,dated to ;”tolk blood P””’”” ,”,,,u,,d du,ing low ”,od’
d,no,”i, ”,,,i”. Thott are fatto” othot than ”,,,i” ,ystoli’ blood
p””u” that a’Tttt I,ft v”ttioul’” ’”’” and ,”itt.1 inflowvdo
dt
,
i,tlud, ”,ting blood p””ure, ag’, ,,,ting h”rt tale,bodyw,ightand
htight whith must be ”,,,,,,d. Tho;,,y,toli’ bloodpre”ure atvariou’
Itvd’ of dyna,”i’ ”otti” doe>not ,ontribu” indopond”.y to left
”nttitUl
at
’”’” and ,”it,,1inflowpatterninyoungmenwithnonn
al
0’
borderline elevated blood pressure .