Browsing by Author "Salinas, C."

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    A fuzzy logic based model computes cardiac output from the radial arterial pressure waveform
    (IEEE, 1994) Urzua Urzua, Jorge; Guarini Hermann, Marcelo Walter; Cipriano, Aldo; Matus Acuña, Marcelo Enrique; Lee, J.; Salinas, C.; Olmedo Hidalgo, Juan Carlos; Lema F., Guillermo; Canessa, Roberto
    An interactive scheme for the development of a fuzzy logic based model has been implemented and applied to build a model that is able to determine cardiac output from radial arterial pressure. It was built using as input radial pressure waveforms from patients in whom cardiac output was simultaneously measured by thermodilution. The scheme was programmed in C language in an Apollo workstation under Unix. Input variables were area under the curve, ratio between systolic and diastolic pressure, and pulse frequency. To determine fuzzy sets and membership functions the authors used 149 pressure waveforms. To test the model, the authors used 6 waveforms not used in building the model. Correlation between predicted cardiac output with measured flow was 0.98.<>
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    Association of bilateral oophorectomy and menopause hormone therapy with mild cognitive impairment: the REDLINC X study
    (2022) Blumel, J. E.; Arteaga, E.; Vallejo, M. S.; Ojeda, E.; Meza, P.; Martino, M.; Rodriguez-Vidal, D.; Nanez, M.; Tserotas, K.; Rojas, J.; Rodrigues, M. A.; Espinoza, M. T.; Salinas, C.; Parraga-Parraga, J.; Chedraui, P.
    Background Dementia is a major public health problem. Estrogen is a regulator of the central nervous system and its deficit could be involved in cognitive decline in older women. Objective This study aimed to evaluate the association of bilateral oophorectomy, menopause hormone therapy (MHT) and other factors on mild cognitive impairment (MCI). Method The case-control study included 941 otherwise healthy postmenopausal women aged 60 years and over from six Latin American countries. Personal and family data were recorded and MCI was assessed using the Montreal Cognitive Assessment test (MoCA). Results Average age, years of education and body mass index were 66.1 +/- 5.8 years, 12.4 +/- 5.0 years and 26.0 +/- 4.3 kg/m(2), respectively. A total of 30.2% had undergone bilateral oophorectomy and 40.3% had used MHT. A total of 232 women (24.7%) had MCI. The prevalence of MCI was higher in women with intact ovaries and non-MHT users as compared to MHT users (29.3% vs. 11.7% [odds ratio (OR) 0.32; 95% confidence interval (CI) 0.20-0.51]). Among oophorectomized women, MCI prevalence was higher among non-MHT users as compared to MHT users (45.2% vs. 12.8% [OR 0.18; 95% CI 0.10-0.32]). Logistic regression analysis determined that the variables associated with MCI were age >65 years (OR 1.69; 95% CI 1.20-2.38), parity (having >2 children; OR 1.69; 95% CI 1.21-2.37), bilateral oophorectomy (OR 1.56; 95% CI 1.09-2.24), hypertension (OR 1.41; 95% CI 1.01-1.96), being sexually active (OR 0.56; 95% CI 0.40-0.79), education >12 years (OR 0.46; 95% CI 0.32-0.65) and MHT use (OR 0.31; 95% CI 0.21-0.46). Conclusion Age, parity, bilateral oophorectomy and hypertension are independent factors associated with MCI; contrary to this, higher educational level, maintaining sexual activity and using MHT are protective factors.
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    First report of porcine respirovirus 1 in South America
    (2020) Aguero, B.; Mena, J.; Berrios, F.; Tapia, R.; Salinas, C.; Dutta, J.; van Bakel, H.; Mor, S. K.; Brito, B.; Medina, Rafael; Neira, V.
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    Metformin use is associated with a lower risk of osteoporosis in adult women independent of type 2 diabetes mellitus and obesity. REDLINC IX study
    (2020) Blümel, J. E.; Arteaga U., Eugenio; Aedo, S.; Arriola Montenegro, J.; López, M.; Martino, M.; Miranda, C.; Miranda, O.; Mostajo, D.; Ñañez, M.; Ojeda, E.; Pilnik, S.; Rojas, J.; Salinas, C.; Sosa, L.; Spritzer, P. M.; Tserotas, K.; Vallejo, M. S.; Belardo, A.; Fighera, T. M.; Chedraui, P.
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    Mobile phone text messaging improves antihypertensive drug adherence in the community
    (2017) Varleta, P.; Acevedo B., Mónica; Akel, C.; Salinas, C.; Navarrete, C.; Garcia, A.; Echegoyen, C.; Rodriguez, D.; Gramusset, L.; Leon, S.; Cofre, P.; Retamal, R.; Romero, K.
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    Muscle health in Hispanic women. REDLINC VIII
    (2020) Blumel, J. E.; Salinas, C.; Danckers, L.; Tserota, K.; Ojeda, E.; Vallejo, M. S.; Arteaga U., Eugenio