Clin Med
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Please submit letters for the editor's consideration within three weeks of receipt of Clinical Medicine. Letters should ideally be limited to 350 words, and sent by email to: clinicalmedicine@rcplondon.ac.uk
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The National Institute for Health and Care Excellence (NICE) CG95 clinical guideline on chest pain of recent onset was published in 2010. There is debate over whether the proposed strategy improves patient care and its implications on service costs. Following a six-month pilot, 472 consecutive patient records were audited for pre-test probability of significant coronary artery disease, investigations performed and outcomes. ⋯ In conclusion, implementing NICE CG95 is feasible but presents challenges. Staff require training to follow the protocol consistently. Functional testing had no benefits over anatomical testing with CTCA, which may allow cost savings in some departments.
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Observational Study
Blood alanine aminotransferase levels >1,000 IU/l - causes and outcomes.
Standard medical education dictates that the vast majority of cases of an alanine aminotransferase (ALT) level >1,000 IU/l will be due to acute ischaemia, acute drug-induced liver injury (DILI) (usually paracetamol) or acute viral hepatitis. There are very few references in the literature to other potential causes of an ALT >1,000 IU/l nor to the prognosis ascribed to each aetiology. ⋯ Common bile duct stones and hepatitis E are two causes for which there needs to be a high index of suspicion as the necessary tests may not be in the clinician's first-line investigation panel. Failing to find a cause and determining that the cause was ischaemic both have poor prognostic implications.
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More than 50 years after the first definition of fever of unknown origin (FUO), it still remains a diagnostic challenge. Evaluation starts with the identification of potential diagnostic clues (PDCs), which should guide further investigations. In the absence of PDCs a standardised diagnostic protocol should be followed with PET-CT as the imaging technique of first choice. ⋯ The prognosis of FUO is determined by the underlying cause. The majority of patients with unexplained FUO will eventually show spontaneous remission of fever. We describe the definition, diagnostic workup, causes and treatment of FUO.
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The systemic autoinflammatory syndromes often present with recurrent fevers. They have proved exceptionally informative about the innate immune system. Although extremely rare, they are important to recognise, as many can now be completely controlled by long-term drug therapies. Diagnosis relies on clinical suspicion followed by genetic testing.