Acupressure for smoking cessation before surgery and anaesthesia

INTERVENTION: Two groups:Ear acupressure and counselling 2‐3 weeks before surgery and anaesthesia versus 1. Sham ear acupressure 2. Nicotinic patches; CONDITION: smokers undergoing elective surgery and anaesthesia PRIMARY OUTCOME: Successful smoking cessation at the time of surgery; SECONDARY OUTCOME: Postoperative complications (respiratory, wound infection), quality of recovery at 72h after surgery and health related quality of life before surgery and at 72 hours after surgery; INCLUSION CRITERIA: Inclusion: current adult smokers undergoing elective surgery in 2 to 3 weeks time who are motivated to stop smoking