Bradycardia 45bpm is it safe to undergo surgery liposuction Brazillian Butt Lift??

I have recently given up smoking and was using chantix for about a week. My pc noticed that my bmp 43 he advised me to stop taking champix immediately, he aslo done an ECG which came back all ok but with bmp 43 reading. So it has been left that I have have a lower than average heart rate. I am not particularly fit and active so my question is am I at risk of cardiac arrest if i where to go through with my choice of procedures and how could it be managed??? thanks for your support!