<unk>  is performed as for patients with severe intractable pain, usually but not always due to cancer. Being irreversible and relatively invasive,<unk>  is used exclusively for pain where treatment to level 3 of the World Health Organization pain ladder (i.e., use of major opiates such as morphine) has proved inadequate.<unk>  is especially indicated for pain due to asbestos-related cancers such as pleural and peritoneal mesothelioma.
Cordotomy
Cordectomy
Omphalotomy
Precipitate delivery
Trial of labour
Labor induction
Caesarean section
External cephalic version