Document Detail

Systemic hemodynamic changes in young and elderly normotensive individuals after ingestion of meals with high lipid, protein, and carbohydrate contents.
MedLine Citation:
PMID:  22561734     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVES: The changes in blood pressure and in the cardiac function were studied in two groups of patients: an elderly group (EG) with 10 healthy normotensive elderly patients, and a young group (YG), with eight normal volunteers.
METHODS: Both groups were provided meals with high contents of lipids (LM), carbohydrates (CM), and proteins (PM). The systemic hemodynamic changes in each group were compared.
RESULTS: The maximum reductions (Δmax) observed in the mean arterial pressure in the EG were -10.3% and -8.9% for LM and CM, respectively (P<0.05), and -6.5% for PM (NS). No significant changes in the mean arterial pressure were found in YG. After the CM, EG showed a reduction in the total peripheral resistance (TPVRi) from 3212±225 to 2537±165 dyne s/cm; (P<0.05), and the cardiac index (CI) increased from 2.4±0.17 to 2.8±0.19 l/min/m; (P<0.05). After LM, the EG reduced the TPVRi from 3630±273 to 2529±247 dyne s/cm; (P<0.05), and CI increased from 2.1±0.15 to 2.8±0.15 l/min/m; (P<0.05). The PM did not alter CI. The YG showed, after CM, no significant decreases in TPVRi, but CI increased from 3.2 to 3.9±0.16±0.28 l/min/m; (P<0.05), and after the LM, there was an increase in CI from 3.3 to 4.2±0.21±0.17 l/min/m; (P<0.05) and a concomitant reduction in TPVRi from 2094±173 to 1657±139 dyne s/cm; (P<0.05).
CONCLUSION: In conclusion, the modifications in cardiac function in our elderly population were observed after eating and were related to the type of food ingested. No significant changes were observed in heart function after the ingestion of a protein meal.
Sebastião Rodrigues Ferreira-Filho; Anna Carolina de Castro Rodrigues Ferreira; Paulo César de Oliveira
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Blood pressure monitoring     Volume:  17     ISSN:  1473-5725     ISO Abbreviation:  Blood Press Monit     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-05-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9606438     Medline TA:  Blood Press Monit     Country:  England    
Other Details:
Languages:  eng     Pagination:  110-5     Citation Subset:  IM    
Nephrology Division, Federal University of Uberlândia, Minas Gerais, Brazil.
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