I am to have a colonoscopy in April, as a follow-up to a CT scan and subsequent sigmoidoscopy and the removal of a 2cm benign polyp three years ago. I am wary of having sedation for 2 reasons: the effect of the drugs used on my existing ailments, and the practicality of my next of kin, who would need look after me after sedation, living 80 miles away. The alternative is gas and air (nitrous oxide) which is supposedly safe for AF patients.
Just a note that in the past seemingly safe drugs have been rejected by my body. Rivaroxaban appeared to trigger the auto-immune condition of Polymyalgia Rheumatica, a beta blocker triggered chronic urticaria, bisphosphonates caused loss of strength in my leg muscles.
Currently I have asymptomatic permanent atrial fibrillation, chronic asthma - mainly controlled by inhalers, lymphoedema in my lower legs - I wear compression socks when not in bed, enlarged prostate, and chronic urticaria. I know I ought to walk more. I lead a normal life, aged 73.
Has anyone any experience of having a colonoscopy with gas and air please?