I can't see a report of the inquest, but this sounds like a death notice:
"suddenly at North Shields, on the 18th inst., John Warren, late of Montrose."
26 April 1929, Montrose Review
Modified to add:
Found a couple of reports of the inquest now - I don't have a subscription to findmypast, but they are available there:
22 April 1929, Blyth News and same date in the Shields Daily Gazette.
(from the snippets available - my transcription, probably needs checking with the original)
"the death in the Tynemouth Victoria Jubillee infirmary of John Warren (74), labourer of Upper Queen Street, North Shields, whilst under the effect of an anaesthetic was inquired into by Mr P. M. Dodds, coroner at North Shields on Saturday. Deceased was found to be suffering from acute intestinal obstruction, and an immediate operation was necessary. the anaesthetic was administered in the usual way by Dr Mary Hamilton, resident medical officer at the infirmary, and the operation had not been completed when the patient began to show signs of distress, became livid, and then ceased to breath, the cause of death being in the opinion of Dr Hamilton, asphyxia due to regurgitation of matter into the windpipe. A verdict in accordance with the medical evidence was returned."
