Abstract Number: 350091
Presenting Author: B. Bo Sramek
Department/Institution:
International Hemodynamic Society, USA
E-mail: info@hemodynamicsociety.org
Abstract
Category: Blood Pressure Measurement/Monitoring
Keyword: Hypertension management
.
B. Bo Sramek, Ph.D.
*,
E. Badila, M.D.
,
D. Bartos, M.D.
,
C. Tirziu, M.D.
and S. Ghiorge, M.D.
.
International
Hemodynamic Society, USA
Emergency
Hospital Bucharest, Bucharest, Romania
*ASH Member
Hypertension management methodology evolved over years as a result of many published
studies. Current therapeutic goal is normotension and the effects of selected therapy
on blood flow are not routinely evaluated and measured. Current therapy consists
of administration of different antihypertensive drugs according to published guidelines.
Such approach produces normotension in <28% of treated hypertensives. The remaining
72% remain uncontrolled hypertensives.
The noninvasive blood flow measurement
has to be included in hypertension management and the therapeutic goal must consist
of both normotension and normodynamic circulation (normal blood flow), i.e., the
normohemodynamic goal. New findings in
hemodynamics clearly define a bi-directional relationship between the measured
hemodynamic state (i.e., MAP @ SI) and measured levels in three hemodynamic modulators
(intravascular volume, inotropy and vasoactivity). Only a patient who is normovolemic,
normoinotropic and normovasoactive can be normohemodynamic.
Utilizing these
findings, the hemodynamic antihypertensive therapy:
(a) identifies the
percentage deviation in each of these three modulators from normal, and
(b)
selects cardio- and vasoactive drugs and their titration as to produce normovolemia,
normoinotropy and normovasoactivity.
When the identified cause of hypertension
is hypervolemia, diuretics are used. When it is hyperinotropy, negative inotropes
are used. When it is vasoconstriction, vasodilators, ACE Inhibitors or ARBs are used.
And when it is a combination of several causes, a corresponding combination of vasoactive
and cardioactive drugs is used.
The Emergency Hospital in Bucharest, Romania,
utilized the HOTMAN® System (HEMO SAPIENS INC., USA), which has the per-beat
hemodynamic management methodology implemented in its software, to treat 56 patients
with uncontrolled hypertension. Their mean age was 56 + 7 years, gender distribution
was 57.2% females and 42.8% males.
Their previous treatment by a conventional
antihypertensive therapy used one antihypertensive drug in 14.2% of patients, two
drugs in 64.3% of patients and 21.5% of patients were treated with more than three
antihypertensive drugs.
The initial hemodynamic assessment produced the following
distribution of their hemodynamic causes:
(1) 82.1% hypervolemia, 17.9% normovolemia,
(2) 37.5% hyperinotropy, 62.5% normoinotropy,
(3) 67.9% vasoconstriction, 32.1%
normovasoactivity.
Change in therapy was then instituted in 78.7% of patients,
while 21.3% remained on existing therapy, though the drug titration was changed.
After 3 months, 84% of these uncontrolled hypertensives were normotensive and
only 16% remained hypertensive. In addition, 87.5% reported no side effects.
.