Hi there, if your histology is adenocarcinoma stage IA Grade 2 then observation is recommended option, in case there is some other poor risk factor and you are offered brachytherapy
then brachytherapy can be given by LDR (low dose rate) which you are mentioning is long time etc and other is HDR (High dose rate ) which is given usually 2 to 3 sessions and is over in minutes and is very comfortable. Ask your radiation oncologist
to offer you HDR brachy or refer you to centre with such technology. With HDR brachy I don't foresee any significant trouble for you though theoretically it can cause side effects of diarrhoea
and urinary frequency but its very well tolerated and no problems occur practically either during RT or after RT.