![]() | Only 14 pages are availabe for public view |
Abstract The prime objecte:t this work, was to stlldy the e:tfeut of propranolol on portal ~,pressure in patients with hepatio 8Ohistosomiasis and portal hypertension. Twenty-four patients, presenting with schistosOlllalhepatio fibrosis and splenomegaly were therefore the subjeot of this work. All cases were subjeoted to full clinioal, laborat0r.J, ultrasonographio, gastrointestinal endosoopio, liver biopsy and intrasplenio pulp manometery I studies. Patients were divided into two groups I 1) Propranolol group ”Sixteen patients” : Petients were given propranolol orally twioe/day in a dose su:tfioient to deorease the resting he~rt rate by almost 25 % for eight weeks. 2) Plaoebo grOllP ”eight patients” : These patients reoeived placebo orally twice/day :tor eight weeks. There was no significant di:t:te;renoe between the two groups as regards age, sex (all !D8·1es),blood picture, 11ver funotion tests, 11ver pathology, portal pressure and period o:tstay in the hospital. The portal pressure was measured by intrasplenio pulp manometry method and liver funotion tests were made, before and eight weeks after the beginning o:ttherapy. Liver function tests did not ohange signi:t1cantly after 120 therap;, in both groQps. Portal pressure in the propranolol group was decreased Signif’ioantl;,. In the placebo groQp, it was also reduoed but to a just signif’- ioant degree b;, paired observation t test. However,the dif’f’erenoe in peroentage of’ reduction between both groQps was signif’ioant • • Fromthe above data, propranolol was ef’f’ective in lowering portal pressure. However, a spontaneous deorease did alao occur. Taking into oonsideration that there is no relationship between the height of’ portal pressure end tendenc;, to bleeding. 1I0reover, the ef’f’ect of’ propranolol in prevention of’ reourrent varioeal bleeding is controversial. Theref’ore it is cono1uded that, the use of’ propranolol in the treatment of’ portel h;rpertension and bleeding varices should be 11m!ted to prolonged randomized controlled stu41es on1;,. Also, the reduotion of’ portal pressure did not reach the normal basal level. Propranolol reduces the portal blood f’low, still the problem of’ .increased portal VI!Iso’Uler res1’B1;anee had not been solved. The present stud;, reoommendsthat, large nlll1bers of’ unselected patients with liver oirrhosis or f’ibrosis are needed to assess the value of’ propranolol in prevention of’ recurrent variceal bleeding and also to assess 121 long term side effects. Also the lUIe of other Beta Blockers may- be tried I 1- Bl-selective blocker drugs e.g. Metoprolol as their effect on hepatic blood flcw i8 less than propranolol so they-mey- be used safely- in severe liver disease. 2- B2- selective blocker drugs e.g. IOI 118551 as their etteot on cardiaC haemodynamiC& i& negligible ,so they-may be used safely in scutt variceal bleeding. However.the main recommendation of the present studY’ and considering the other studies that dealt with the problem ot portal hy-perhnsion.. is the golden true rule or ”prevention i8 better thau treatment”. |