Periodic fever and autoinflammatory syndromes — OSCE

Station brief (candidate)

• Acknowledge the parents' fear, given the father's own experience of amyloidosis and a renal transplant, and validate it as entirely reasonable.
• Explain that the pattern of short attacks of fever with the abdominal pain and the swollen knee, in a child of Lebanese background who is completely well between attacks, points to familial Mediterranean fever, the same condition that affected the father.
• Outline the management: a lifelong daily tablet called colchicine that reduces the attacks and is the only treatment proven to prevent the amyloidosis that caused the father's kidney failure, with regular monitoring of the urine for protein and the kidney function.
• Explain the genetic and the family implications honestly: it is inherited, it runs in families, and there are reproductive considerations for the future.
• Agree a clear, specific safety-net for when to return immediately (new persistent swelling, severe abdominal pain that does not settle, or any change in the urine). [3][4]

Role-player notes

You are parents who carry the weight of the father's own kidney failure from amyloidosis and his renal transplant. You have watched your son have these attacks for two years, terrified that he is heading down the same path. You become more anxious if the doctor minimises the risk, dismisses the family history, or is vague about the prevention. You calm down and engage well when the doctor names the condition in plain language, honestly acknowledges the amyloidosis risk while explaining that there is now a tablet that can prevent it, gives a clear plan for the monitoring, and shows that they understand what your family has been through. You want to know whether your son will need a kidney transplant like his father, and whether your other children should be tested. [1]

Expected candidate performance

1. Opening: "I can see how frightening it must be to watch your son have these attacks, especially after what his father went through with the kidney failure. The good news is that the pattern we are seeing is very recognisable, and we now have a treatment that can prevent the very complication that affected his father. I take your family's experience seriously, and we will build the plan around preventing the same outcome." [1]
2. Diagnosis explained simply: Familial Mediterranean fever is a condition that runs in families, particularly from Mediterranean backgrounds like yours, in which the innate immune system switches on for a day or two at a time, causing the fever, the abdominal pain and the swollen joint, and then switches off again, leaving the child well. It is the same condition that affected his father. [3]
3. The treatment and the prevention: The treatment is a daily tablet called colchicine that calms the over-active innate immune system. It reduces the attacks, and it is the only medicine proven to prevent the amyloidosis, the protein deposition that damaged his father's kidneys. We check the urine regularly for any protein and the blood for the kidney function, so we catch any sign early. [4]
4. The honest prognosis: With the colchicine taken faithfully, most children live a full and normal life and never develop the amyloidosis. The reason his father's disease progressed is that the effective prevention was not available or not sustained; we now have the tools to prevent it. I cannot promise it absolutely, but the outlook is very different today. [4]
5. Safety-net: Return immediately if your son develops a severe abdominal pain that does not settle within the usual day, a joint swelling that persists, a persistent fever between his usual attacks, or any change in his urine such as frothing or blood. Otherwise we review with the test results and the colchicine at the agreed time. [3]
6. Communication: Use teach-back to confirm the parents can repeat the plan and the safety-net; offer written information and a contact for the rheumatology team; arrange an interpreter if needed; and offer genetic counselling and the testing of the siblings as the family wishes. [1]

Marking domains

• Validates the parents' fear, drawing on the father's experience, without minimising the amyloidosis risk.
• Names familial Mediterranean fever and explains the innate immune switching in plain language.
• States the colchicine-first principle, its lifelong nature, and its role in preventing the amyloidosis, with the monitoring plan.
• Gives an honest prognosis that distinguishes the father's era from the modern preventable outcome.
• Gives a specific, written safety-net and confirms understanding with teach-back, and offers genetic counselling. [3][4]

Common fails

• Minimising the amyloidosis risk or failing to acknowledge the father's experience before discussing the prevention.
• Failing to name the colchicine as the prevention for the amyloidosis, or being vague about the monitoring.
• Promising the amyloidosis will never happen without acknowledging the stakes.
• Reaching for the corticosteroid or the biologic as the first-line, when the colchicine is the cornerstone.
• Sending the family home without a specific safety-net for the abdominal pain, the joint swelling and the change in the urine. [1]