Pharmacological Research Communications, Vol. 20, Supplement II, 1988 EFFECT OF TSRLIPRESSIN ON PORTAL ~
~
55
BY DIRECT ~
OF ~ ( ~ A L
VARICES
(I.O.V.P.) IN PATIENTS WITH PORTAL HYPERTENBI(~: A DOUBLE-BLInD RA~X~ STUDY M. Bra~a, R. Cestari, G. Missale and P. Ravelli Dept. of Surgical Pathology, University of Brescia, 25100 Brescia, ITALY Key words: Trig/ycyl-lysin-vasopressine , Forts/hyperter~ion
The study was carried out on 20 ~it~teer frcm
liver c i ~ i s
randcm a4ministration patients.
with portal
patients
hypertension
(mean age 57.4 years) suffering
and oesophageal
varices. A d~le-b!ind
of glypressin 2 ~g i.v.~ or placebo (mannitol) ~ms given to all
Intravascular
oesophageal variceal
pressure
was
assessed
described by Sta~itz et al (i). Experimental protocol required 2 b ~ l
using the technique I.O.V.P. n ' ~ s t ~ . ~ n t ~ _ ~
before and after bolus i.v. dr~g injection. The second measurement was taken as reference ~m determine whether the treatment was effective. Ohher m e ~ t s 5 and I0 minutes after drug a ~ s t r a t i o n .
For statistical
were taken i, 3,
analysis the [~xnett test
~as used. I.O.V.P. measurements (mean_+ S.E.) in the 1-1 patients wfm had received glypressin 19.6+_2.4, 16.7+_2.1, 14.5+~2.0, 13.8+_1.8 and 13.0+_/.6 n ~ spectively.
The corresponding
at O, i, 3, 5 and 10 minutes re-
values in the 9 patients who had been given placebo were
17.8+_2.2, 17. +].%2.3, 17.3+_2.1, 17.9+_2.0 and 18.8+_2.1 mm~.
The fall in I.O.V.P. at 3,5
end I0 minutes in the patients who had been adldnis%ered g/~pressin pr6ved statistically significant of
(p~O.Ol). In conclusion, triglycyl-lysine-vssc~pressin
causir~ statistically
i,~ortant
h e ~ c
variations
on
was found to be capable the
I.O.V.P. already at
3 minutes after administration. These variations persisted after 5 and i0 minutes.
i) Staritz M. eta/.: "/ntravascu/ar oesophageal variceal pressure (I.O.V.P.) assessed by endoscopic fine needle puncture under basal conditions, Valsalva's margeuvr~ end after glyceryltrinitrate application". (~T, 1985- 26:525-530.