Platelet Count on Acute Induction to High Altitude

Summary

Platelet counts in 50 normal healthy volunteers were performed at sea level and then serially on rapid induction to 3658 m by air. Subjects were divided into "symptomatic" and "asymptomatic" groups depending on their score on the symptoms score chart. All were brought back to sea level and study repeated. Platelet count in the symptomatic group showed a falling trend while in the asymptomatics a gradual rise was noted.

Keywords

Platelet count - High altitude - Acute altitude hypoxia - Haemostasis - I11 effects of high altitude

• References

• 1 Sharma SC, Hoon RS. Platelet adhesiveness on acute induction to high altitude. Thrombosis Res 1978; 13: 725-732
• 2 Hoon RS, Sharma SC, Balasubramanian V, Chadha KS, Mathew OP. Urinary catecholamine excretion on acute induction to high altitude (3658 m). J Appl Physiol 1976; 42: 631-633
• 3 Sharma SC, Hoon RS, Balasubramanian V, Chadha KS. Urinary catecholamine excretion in temporary residents of high altitude. J Appl Physiol 1978; 44: 725-727
• 4 Singh I, Khanna PK, Srivastava MC, Lal M, Roy SB, Subramanyam CS V. Acute mountain sickness. New Engl J Med 1969; 280: 175-184
• 5 Nayak NC, Roy S, Narayanan TK. Pathologic features of altitude sickness. Am J Pathol 1964; 45: 381-385
• 6 Sharma SC, Vijayan GP, Suri ML, Seth HN. Platelet adhesiveness in young patients with ischaemic stroke. J Clin Path 1977; 30: 649-652