Excessive Erythrocytosis and Cardiovascular Risk in Andean Highlanders

León-Velarde, Fabiola; Vizcardo-Galindo, Gustavo; Figueroa-Mujíca, Rómulo; Parati, Gianfranco; Anza-Ramírez, Cecilia; Macarlupú, José Luis; Bilo, Grzegorz; Gamboa, Jorge L.; Corante, Noemí; Villafuerte, Francisco C.

dc.contributor.author	Corante, Noemí
dc.contributor.author	Anza-Ramírez, Cecilia
dc.contributor.author	Figueroa-Mujíca, Rómulo
dc.contributor.author	Macarlupú, José Luis
dc.contributor.author	Vizcardo-Galindo, Gustavo
dc.contributor.author	Bilo, Grzegorz
dc.contributor.author	Parati, Gianfranco
dc.contributor.author	Gamboa, Jorge L.
dc.contributor.author	León-Velarde, Fabiola
dc.contributor.author	Villafuerte, Francisco C.
dc.date.accessioned	2018-11-30T03:10:46Z
dc.date.available	2018-11-30T03:10:46Z
dc.date.issued	2018
dc.identifier.uri	https://hdl.handle.net/20.500.12866/4066
dc.description.abstract	Corante, Noemí, Cecilia Anza-Ramírez, Rómulo Figueroa-Mujíca, José Luis Macarlupú, Gustavo Vizcardo-Galindo, Grzegorz Bilo, Gianfranco Parati, Jorge L. Gamboa, Fabiola León-Velarde, and Francisco C. Villafuerte. Excessive erythrocytosis and cardiovascular risk in Andean highlanders. High Alt Med Biol. 19:221-231, 2018.-Cardiovascular diseases are the main cause of death worldwide. Life under high-altitude (HA) hypoxic conditions is believed to provide highlanders with a natural protection against cardiovascular and metabolic diseases compared with sea-level inhabitants. However, some HA dwellers become intolerant to chronic hypoxia and develop a progressive incapacitating syndrome known as chronic mountain sickness (CMS), characterized by excessive erythrocytosis (EE; Hb ≥21 g/dL in men, Hb ≥19 g/dL in women). Evidence from HA studies suggests that, in addition to CMS typical signs and symptoms, these highlanders may also suffer from metabolic and cardiovascular disorders. Thus, we hypothesize that this syndrome is also associated to the loss of the cardiometabolic protection observed in healthy highlanders (HH), and therefore to a higher cardiovascular risk (CVR). The aim of the present work was to evaluate the association between EE and CVR calculated using the Framingham General CVR Score and between EE and CVR factors in male highlanders. This cross-sectional study included 342 males from Cerro de Pasco, Peru at 4340 m (HH = 209, CMS = 133). Associations were assessed by multiple logistic regressions adjusted for potential confounders (BMI, pulse oxygen saturation and age). The adjusted models show that the odds of high CVR (>20%) in highlanders with EE was 3.63 times the odds in HH (CI 95%:1.22-10.78; p = 0.020), and that EE is associated to hypertension, elevated fasting serum glucose, insulin resistance, and elevated fasting serum triglycerides. Our results suggest that individuals who suffer from EE are at increased risk of developing cardiovascular events compared with their healthy counterparts.	en_US
dc.language.iso	eng
dc.publisher	Mary Ann Liebert
dc.relation.ispartofseries	High Altitude Medicine and Biology
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject	andean highlanders	en_US
dc.subject	cardiovascular risk	en_US
dc.subject	chronic mountain sickness	en_US
dc.subject	excessive erythrocytosis	en_US
dc.title	Excessive Erythrocytosis and Cardiovascular Risk in Andean Highlanders	en_US
dc.type	info:eu-repo/semantics/article
dc.identifier.doi	https://doi.org/10.1089/ham.2017.0123
dc.subject.ocde	https://purl.org/pe-repo/ocde/ford#3.01.08
dc.subject.ocde	https://purl.org/pe-repo/ocde/ford#3.03.11
dc.subject.ocde	https://purl.org/pe-repo/ocde/ford#3.03.05
dc.relation.issn	1557-8682