I have described a new clinical diagnostic test for hernia, a method to record diastolic blood pressure without a stethoscope, and a new surgical knot.
While investigating the reasons for vomiting after surgery, we found that omitting nitrous oxide reduces its incidence 
I have written about my concerns about training of doctors and surgeons and of overspecialisation that could have had fatal consequences
Here is an interesting case of gall stone ileus  diagnosed from a plain abdominal film and a new disease described by my son Hrisheekesh Vaidya at age 9.
When we used the delay from symptom onset rather than clinical presentation, we found that it increases conversion rate from laparoscopic to open cholecystectomy  which prompted a commentary.
I reviewed the popular must-read for surgical residents  and wrote in the BMJ about alleged ‘safety-valve’ effect of spanking and people’s reaction to bad press about doctors
My commentary on systemic effect of surgery and intraoperative radiotherapy
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