A man in his fifties had a history of schizophrenia and chronic thought disorder, and lived in a community residential
mental health service. Over a six week period he presented to the Emergency Department seven times with severe abdominal
pain. He was repeatedly diagnosed as having constipation as a result of an anti-psychotic medication (clozapine).
At each presentation the man’s diagnosis remained the same, despite lack of improvement and other red flags indicating
something else may be causing his pain. Each staff member failed to question the previous diagnosis or undertake further
investigations until he underwent surgery to examine the abdomen.
During the surgery the man was found to have widespread colon cancer with tumours causing a complete obstruction of the
bowel. Sadly the man died of septic shock, secondary to metastatic colon cancer.
The Deputy Commissioner considered that there were numerous missed opportunities by many SDHB clinicians, across
multiple presentations, to investigate the man’s symptoms further and reconsider his diagnosis when he failed to
improve.
"The cumulative effect of these missed opportunities demonstrates a concerning lack of critical thinking and acceptance
of the man’s unimproved condition by SDHB staff, attributable to the DHB as the overall service provider, said Dr
Caldwell.
"I acknowledge that the man’s illness was metastatic, and that an earlier diagnosis many not have influenced the
ultimate outcome. However, I note that an earlier diagnosis of colon cancer could have opened up opportunities for
palliative care that could have led to a significantly different end to this man’s life."