A 20 year old man complains of 3 weeks of cough and fever, and 4 days of oedema of his feet. On examination he is breathless. There is marked engorgement of his neck veins, JVP higher than ears, ascites, 2+ oedema of his feet. P130/min irregularly irregular, of waxing and waning volume, apex rate 160. BP 95/80. Liver 4cm. There was dullness and reduced breath sounds at R lung base. His chest radiograph is shown.
ECG showed inverted T waves across anterolateral chest leads.
What is the likely diagnosis. What complication sounds imminent, and what would you do about it. What is the most likely cause?
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He has a pericardial effusion with tamponade. 500 mls of bloody fluid were drained from the pericardium, with immediate improvement in breathlessness and blood pressure. 1000 ml of similar fluid was drained from the right pleural cavity. Microscopy did not show a cause.
The effusion recurred a week later, so a pericardial biopsy was undertaken. Don’t try this at home.
A week later the problem recurred. A biopsy was undertaken.
What might it show?
Show the outcome
The fluid again did not give a diagnosis, but the pericardial biopsy showed giant cell granulomas. A guinea pig was inoculated with the fluid, and 5 weeks later it had developed tuberculous lesions, confirming the diagnosis.
TB is a rare cause in UK practice. Viral causes are probably the most common cause of symptomatic acute pericarditis, followed by autoimmunity. However big effusions causing tamponade are probably most likely after cardiac surgery or myocardial injury (Dressler Syndrome), and in malignancy. Infections are a less common cause.
- Patient.info’s professional account is very good. But rather uncritically listy in aetiology and test sections, which are long, with little about common/likely vs rare.
- Approach to pericardial effusions (UoE login required) from BMJ Best Practice gives a good outline. Listy by definition.
This case is from Sanghvi et al 1958, Sawai Man Singh Hospital and Medical College Rajasthan (Pericardial biopsy with Vim-Silverman needle, Archives of Internal Medicine 101:1147-10). Pushing a big biopsy needle towards the heart sounds hazardous, and probably fortunately the approach didn’t catch on. Guinea pig inoculation was a quicker, less demanding technique than TB cultures, though these had been developed in the 1930s.
Pericarditis from TB is rarely encountered in developed countries now, but still not rare worldwide. Drug resistance, and co-infection with HIV, are important issues. Surgery may be required in chronic examples, but is not always available in the areas of highest incidence.
Further further info
The image shows a modified Vim Silverman needle, the predecessor of the ‘Trucut’ cutting needle developed for liver biopsies, extended in the mid 1950s to renal biopsies (Renal biopsy becomes mainstream, 1954).