Inquest into the death of Yongxing Wang

79y · Male·hypoxic brain injury due to cardio-respiratory arrest caused by opioid toxicity

Yongxing Wang, 79, died from hypoxic brain injury caused by opioid toxicity from combined morphine and oxycodone. After a minor back injury on 21 August, he received a cortisone injection on 22 August with complications. Dr L. administered two doses of morphine (30mg and 20mg) intramuscularly at home on 23 August without adequate documentation or monitoring. Wang showed clinical somnolence from 5pm that day—an early warning sign of respiratory depression. The expert consensus was these morphine doses were inappropriate given Wang's age (79), opioid naivety, concurrent oxycodone use, simultaneous use of other medications, lack of clinical assessment documentation, and absence of patient safety monitoring. No adverse findings regarding Dr L.'s initial management on 21 August were made. The critical issues were inadequate dose selection for elderly opioid-naive patients receiving home-based injections, absence of documentation of clinical assessment and drug administration, and failure to observe and respond to early signs of opioid toxicity.