Medicine and Health Sciences Commons^™

Using Cartesian Coordinate Systems To Create, Classify, And Retrieve Biomedical Time-Series: Applications To 24-Hour Ambulatory Blood Pressure Monitoring, Antonio Garcia, Gladys E. Maestre, John Blangero, Jesus D. Melgarejo, Julio Facelli

Research Symposium

Background: Ambulatory Blood Pressure Measurement (ABPM) allows physicians to monitor blood pressure variability under everyday living conditions and predicts clinical outcomes better than conventional blood-pressure measurement. ABPM can demonstrate mean arterial pressure (MAP) behavior over 24 hours relevant to clinical practice, such as nocturnal hypertension or increased blood pressure variability. We hypothesized that individuals with the same cardiovascular health status would have the same MAP signal (MAPs) waveform.

Methods: This study reutilizes a data subset from the IDACO Consortium to create 24-hour MAPs. We assigned all the MAPs to data matrix X, performed principal components analysis (PCA) to X, and …

Outcome-Driven Thresholds For Ambulatory Pulse Pressure In 9938 People Recruited From 11 Populations, Yu-Mei Gu, Lutgarde Thijs, Yan Li, Kei Asayama, José Boggia, Tine W. Hansen, Yan-Ping Liu, Takayoshi Ohkubo, Kristina Björklund-Bodegård, Gladys E. Maestre

School of Medicine Publications and Presentations

Evidence-based thresholds for risk stratification based on pulse pressure (PP) are currently unavailable. To derive outcome-driven thresholds for the 24–h ambulatory PP, we analyzed 9938 people randomly recruited from 11 populations (47.3% women). After age stratification (≥60 years) and using average risk as reference, we computed multivariable-adjusted hazard ratios (HRs) to assess risk by tenths of the PP distribution or risk associated with stepwise increasing (+1 mm Hg) PP levels. All adjustments included mean arterial pressure. Among 6028 younger participants (68,853 person-years), the risk of cardiovascular (HR, 1.58; P=0.011) or cardiac (HR, 1.52; P=0.056) events increased only in the top …

Relación Entre Monitoreo Ambulatorio De Presión Arterial De 24 Horas Y Alteraciones En La Memoria Reciente De Adultos Mayores De 55 Años [Ambulatory Blood Pressure Monitorization Statement With Recent Memory Disturbs In Adults Oldness Than 55 Years], Egle Silva, Aldrin Molero, Gloria Pino, Tulio Sulbarán, Gladys E. Maestre

School of Medicine Publications and Presentations

We display a poblational and transversal cohort study with 402 male and female patients of 55 years old or than oldness, from Santa Lucía Maracaibo City Parroquial. Neuropsychologic essays were performs for recent memory evaluation; as a result we obtain two groups: with recent memory disturb and recent memory normal. Weight (kg), tall (m), body mass index (w/t2) and fortituos blood pressure with Dynamap Critikon were performs too. All patients were evaluated with an automatic engine for ambulatory blood pressure monitorization during vigil and sleep hours.

Our conclusions were: 1) Exist a relation of systolic blood pressure with recent memory …