title: Clinico-Epidemiological Profile of Patients with Polycythaemia Rubra Vera - a Five Year Experience from a Tertiary Care Center.
abstract: BACKGROUND
  Polycythaemia rubra vera (PV) is a Philadelphia chromosome negative myeloproliferative neoplasm characterized by increased red cell production, independent of the mechanisms that regulate normal erythropoiesis. The aim of this study was to analyze the clinico-epidemiological profile of Pakistani patients with PV.
  
  
  METHODS
  In this retrospective cross sectional study, 26 patients with PV were enrolled from January 2010 to December 2014. They were diagnosed based on WHO criteria.
  
  
  RESULTS
  The mean age was 53.4±9.31 years (range 36-72) and the male to female ratio was 2:1. Overall 30.7% of patients were asymptomatic. In symptomatic patients, major complaints were headache (30.8%), abdominal discomfort (23.1%), blurred vision (15.3%), pruritus (11.5%) and vascular incidents (11.5%). Physical examination revealed plethoric face and splenomegaly as predominant findings, detected in 34.6% and 30.7%, respectively, with the mean splenic span of 15.9±2.04cm. The mean hemoglobin was 18.1±1.9 g/dl with the mean hematocrit of 55.6±8.3%. The mean total leukocyte count was 12.8±7.1x109/l and the platelet count 511±341.9x109/l. Mean erythrocyte sedimentation rate was 3.5±1.22mm/hr. Serum lactate dehydrogenase, serum creatinine and uric acid were 552.7±309.2, 0.8±0.17 and 6.60±1.89 respectively.
  
  
  CONCLUSIONS
  PV in Pakistani patients, unlike in the West, is seen in a moderately young population. The disease is frequently seen in male gender and primarily patients present with symptoms related to hyperviscosity.
authors.affiliation: Department of Hematology and Blood bank, Liaquat National Hospital and Medical College, Karachi, Pakistan E-mail : sadiasultan96@yahoo.com.
authors.forename: Sadia
authors.initials: S
authors.lastname: Sultan
authors.forename: Syed Mohammed
authors.initials: SM
authors.lastname: Irfan
authors.forename: Sania
authors.initials: S
authors.lastname: Murad
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D005500:Follow-Up Studies; D006400:Hematocrit; D006403:Hematologic Tests; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D010154:Pakistan / Q000453:epidemiology; D011087:Polycythemia Vera / Q000453:epidemiology* / Q000473:pathology*; D011379:Prognosis; D012189:Retrospective Studies; D062606:Tertiary Care Centers