The THD is equipped with a Doppler transducer (A) to locate the terminal branches (up to six) of the superior rectal artery,
which are then ligated, through an apposite slit (B) in the instrument, 2-3cm above the dentate line. Therefore, the arterial
flow to the hemorrhoids is reduced and they shrink.
THD can be applied also for fourth-degree hemorrhoid (in this case, other non invasive procedures are not effective).
If there is fourth-degree hemorrhoid, we ligate branches of superior rectal artery and after this we fix hemorrhoidal tissue in
anal canal (it eliminates prolapse of hemorrhoid).
There is advantages of THD comparing with other less invasive methods of treatment of hemorrhoid (sclerotherapy, rubber
band ligation, infrared photocoagulation)
Transanal Haemorrhoidal Dearterialisation (THD) is based on reducing of arterial flow to the hemorrhoids and is high-effective
in 95% of cases (elimination the symptoms of hemorrhoid). The radicalism of this technique is so high that it is even
comparable with traditional operations.
2. One phase- technique
All hemorrhoidal arteries are ligated at once in this case. Instead, other less invasive methods require 3-4 phase ( 1 phase –
3. Less traumatic
THD doesn’t cause necrosis of hemorrhoidal tissue or wound. This method requires only ligation of hemorrhoidal arteries, that’s
why discomfort and duration of rehabilitation after this procedure is minimal.
After this operation patient can go home next day and can go to his normal activity in 3-4 days. In our department, we with our
Italian colleagues performed THD firstly in Ukraine (at this moment we already accomplish 150 this operations). We have as well
results as our foreign colleagues.