title: Case report: bilateral calf (tibial) deep venous thrombosis following air travel.
abstract: OBJECTIVE
  To describe an interesting case of bilateral calf (tibial) deep venous thrombosis (DVT) in a traveller.
  
  
  METHODS
  Clinical case notes and reports of further investigations were analysed in the light of the existing literature concerning DVT and travellers.
  
  
  RESULTS
  A 56-year-old university lecturer presented within 48 h of a return to New Zealand from international travel abroad. An otherwise fit and healthy man he developed bilateral calf pains most notable on arising the day of presentation, although he reported some mild pain in the lower legs within 5 h of landing at Auckland. He reported no other complaints. Physical examination was unremarkable, except for the bilateral calf tenderness and being overweight. An urgent outpatient ultrasound to both lower limbs was reported as follows: 'There is evidence of extensive thrombus involving the paired posterior tibial veins of both calves'. He was admitted to hospital for 24 h and started on low-molecular weight heparin. On completion of the course of heparin, he was further treated orally with warfarin. A follow-up assessment with a Clinical Haematologist occurred one month after hospitalisation.
  
  
  CONCLUSIONS
  The present case illustrates bilateral calf (tibial) DVT in an otherwise fit male traveller following extensive long haul travel. It also illustrates the need to consider the possible diagnosis and the need for bilateral ultrasound scanning of the legs, particularly in travellers undertaking long haul air travel, who are symptomatic. All travellers undertaking extensive, long-haul air travel need to be warned of the risks of DVT and venous thromboembolism (VTE) and advised of appropriate preventive measures as have been outlined. In addition, all travellers should be aware of the signs and symptoms of DVT/VTE and of the need to seek medical advice should they develop them; in order to help prevent progression of a DVT to a VTE.
authors.affiliation: Worldwise Travellers Health Centres of New Zealand, 72 Remuera Road Newmarket, Auckland, New Zealand.
authors.forename: Marc M T
authors.initials: MM
authors.lastname: Shaw
authors.forename: Peter A
authors.initials: PA
authors.lastname: Leggat
authors.forename: Peter
authors.initials: P
authors.lastname: Huggard