Post-splenectomy sepsis in a young adult with thalassaemia major
Rana is 19 and has beta-thalassaemia major; she has been transfused every three weeks since age 2 and had a splenectomy at 12. She stopped penicillin prophylaxis at 17 because, she says, she kept forgetting. Her regular medicines are deferasirox 30 mg/kg/day and folic acid. Her ferritin is 4,850 µg/L and her cardiac T2* is 12 ms (normal above 20). She presents at 02:00 with a temperature of 39.1 °C, rigors, heart rate 128, blood pressure 92/56, respiratory rate 26, capillary refill 3 seconds and vague abdominal pain. Her mother says she had 'a cold' last week and gave her paracetamol. The triage nurse places her in the urgent category behind 11 patients with minor complaints. White cell count is 1.9 ×10⁹/L and platelets 88 ×10⁹/L.
1. Why must she be moved to the front of the queue, and what must happen in the first hour?
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She is a medical emergency, not an urgent case. This is a young adult with no spleen, fever and rigors, hypotension, tachycardia, delayed capillary refill and a low white cell count. The working diagnosis is post-splenectomy sepsis, most likely pneumococcal, meningococcal or Haemophilus influenzae, and it can kill within hours. She cannot mount a normal white cell response, so the low count is a sign of severity, not reassurance. The paracetamol she was given does not exclude sepsis and may mask a rising temperature.
First hour - sepsis bundle:
- Move her to the resuscitation area and apply continuous monitoring, oxygen to keep saturations above 94%, and two large-bore IV cannulae.
- Take blood cultures before antibiotics if this does not delay them, plus lactate, full blood count, renal and liver function, coagulation and a group and screen.
- Give broad-spectrum IV antibiotics within one hour - ceftriaxone is the usual choice for a splenectomised patient, with local protocol for resistant pneumococcus. Do not wait for culture results or for the ward bed.
- Give IV crystalloid 30 mL/kg for the hypotension, reassess after each bolus, and insert a urinary catheter to measure hourly output.
- Inform the haematology consultant on call and the intensive care unit early.
- Ask specifically about vaccination history and prophylaxis, and document it.
Delay here is the single most dangerous thing you can do; the triage category must be changed at once.
2. Interpret the ferritin and T2* results and explain what they mean for this admission and for her long-term care.
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Ferritin 4,850 µg/L and cardiac T2 12 ms together describe severe iron overload with myocardial iron loading.*
- Ferritin is an indirect, inflammation-sensitive marker of total body iron. A value above 2,500 µg/L in a transfusion-dependent patient indicates heavy overload, but it can rise with infection, so it must be interpreted alongside her trend rather than as a single number. Her adherence to deferasirox and her recent missed prophylaxis both need exploring.
- T2* is the more specific measure for cardiac iron. Normal is above 20 ms; 10–20 ms indicates moderate myocardial iron loading, and below 10 ms severe loading with a high risk of heart failure and arrhythmia. At 12 ms she is in the moderate range, which is clinically significant and requires intensification of chelation and cardiology follow-up.
- For this admission: iron overload does not cause a fever with rigors; do not let it distract from treating sepsis. But myocardial iron loading means she tolerates hypotension and hypoxia poorly, so fluid resuscitation must be reassessed frequently and she needs continuous cardiac monitoring for arrhythmia.
- Long term: the haematologist should review the chelation dose and adherence, add cardiac monitoring and echocardiography, and consider whether combination chelation is needed. Restart penicillin prophylaxis and bring vaccinations up to date. A ferritin and T2* trend should be kept in her file so that each clinic visit compares like with like.
3. Her mother asks whether the fever could simply be the 'cold' from last week and why you are giving antibiotics before any result is back. How do you explain this, and what discharge education must be in place before she leaves?
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Explaining it to the mother, without jargon:
'A fever in someone without a spleen is an emergency. The spleen is the filter that removes certain bacteria from the blood, and Rana no longer has it. The same bacteria that cause a mild cold in you can reach her bloodstream within hours and cause a life-threatening infection. We are giving antibiotics now because every hour of delay increases the risk of death; waiting for the culture would take 48 hours and she may not have 48 hours. The paracetamol she took may have lowered her temperature and hidden how serious this is.'
Acknowledge that her instinct to treat the cold at home was reasonable, and that the family did the right thing by bringing her in.
Before discharge, verify all of the following:
- Penicillin V prophylaxis restarted and a plan for who will remind her, with a pill box or phone alarm.
- Vaccinations up to date: pneumococcal, meningococcal and Haemophilus influenzae type b, with a written record.
- A fever action plan: any temperature of 38 °C or above, or feeling unwell with rigors, means going straight to the nearest emergency department and saying 'I have no spleen' - not waiting to see a GP the next day.
- A medical alert card or bracelet stating splenectomy and thalassaemia.
- Travel advice: carry a course of standby antibiotics if the haematologist approves, and know the nearest hospital.
- Document the teaching, use teach-back, and give written material in Arabic.