Yeah I'm not sure you should do surgeries without anaesthesia on newborns either way.
It was standard procedure to do invasive surgeries on newborns without anesthesia until the 1980s, on the theory that they can’t feel pain. https://hms.harvard.edu/news/long-life-early-pain
It was standard procedure to do invasive surgeries on newborns without anesthesia until the 1980s, on the theory that they can’t feel pain. https://hms.harvard.edu/news/long-life-early-pain