Commentary

Colin's first clear deterioration is cognitive. The nurse and Asha notice that he is unable to follow familiar conversation before overt fever and haemodynamic instability appear. A focused surgical assessment begins at that point. The team begins assessment before dramatic physiological abnormalities appear.

A postoperative complication is subsequently identified and treated. The exact procedure is kept at the level needed for the learning objective; the source relationship is the timing of confusion before obvious sepsis [S38]. The second page then follows the less dramatic but clinically important period after treatment. Breathing and circulation stabilise while attention, sleep and everyday functioning remain abnormal.

The case also includes medication and pain review, nutritional assistance and adapted mobilisation. The team continues these measures in response to Colin's condition, without promising to shorten delirium by a particular number of days [P43, G01]. Rehabilitation is not postponed until every cognitive symptom has disappeared.

Asha's observations contribute information about baseline and the daily course. They do not replace examination, but they prevent a brief lucid exchange from being taken as proof of recovery. By week eight, Colin is home with additional support and worries about future surgery. Future planning can include subsequent procedures without suggesting that recurrence is inevitable or that any prevention package guarantees its absence. Marcantonio's reported patient had a later operation without delirium, but the individual components responsible were not established [S38].

An anonymised composite case that does not describe one identifiable person and is not research evidence.