Visceral and Vascular Red Flags
A 67-year-old British retired engineer, a lifelong smoker with hypertension, comes to your osteopathic clinic in Abu Dhabi with three weeks of dull low back pain. It is not affected by movement. He mentions he sometimes feels 'a pulse in my belly' when lying down, and his father died suddenly at 70 'from something in the stomach'. On examination his lumbar movements are full, and he asks you to treat his back with soft-tissue work and gentle articulation. How do you proceed?
What the panel is testing: Recognition of non-mechanical back pain and the possibility of abdominal aortic aneurysm, with proportionate examination and urgent medical referral.
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Knowledge: Back pain that does not vary with movement in an older man with a smoking history, hypertension and a family history of sudden death must make me consider abdominal aortic aneurysm, which can leak or rupture. Risk is higher in male smokers over 65. A palpable pulsatile abdominal mass may be absent, particularly in obese patients, so absence does not exclude an aneurysm, and I should not press deeply on a suspected one.
Management: I would take a full history including previous vascular disease, claudication and abdominal or groin pain, take his blood pressure, and perform a gentle abdominal inspection and light palpation. If I find a pulsatile expansile mass, or he has severe sudden pain, collapse or tachycardia, I would call 998 immediately and not treat. Even if the examination is unremarkable, because of the risk profile I would refer him the same week to his physician for an abdominal ultrasound and I would defer manual treatment of the lumbar spine until the result is available.
Ethics and communication: I would explain that I do not know that he has a problem, but that this pattern of pain and risk factors needs a scan before I treat him, and that waiting costs little while missing an aneurysm costs a great deal. I would respect that he may be reluctant to be sent for tests, but I would document my advice and his decision. I work within my scope as an osteopath, which includes recognising when a patient needs a physician, and I would send a letter to his doctor with my findings.
Likely panel follow-up questions
- Which other visceral conditions can present as back pain, and what features would make you suspect them?
- What would you do if he became pale and faint on your treatment couch?
- Do you know the screening recommendations for abdominal aortic aneurysm in men, and how would you apply them to a patient from another country?
Pitfalls in this case
- Treating first because the lumbar examination shows some stiffness
- Palpating deeply or pushing hard on a suspected pulsatile mass
- Sending the patient away with reassurance and no follow-up
Reference: NICE Guideline NG156, Abdominal Aortic Aneurysm: Diagnosis and Management (2020) and Greenman's Principles of Manual Medicine (Lippincott Williams and Wilkins)