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Main Author:	María José Armas de Hernández
Format:	Artículo científico
Language:	es
Published:	Sociedad Latinoamericana de Hipertensión 2006
Subjects:	Medicina Hipertensión Epidemiología Prevalencia
Online Access:	https://www.redalyc.org/articulo.oa?id=170217078002
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La hipertensión en Latinoamérica María José Armas de Hernández María Cristina Armas Padilla Rafael Hernández Hernández Medicina Hipertensión Epidemiología Prevalencia Desde comienzos de los años 50 todos los países de Latinoamérica han experimentado cambios importantes en varios indicadores de salud, en la demografía, en la epidemiología y en los perfiles socio-culturales. Las enfermedades cardiovasculares son hoy en día, la principal causa de muerte en la mayoría de los países de Latinoamérica a medida que se han reducido las enfermedades infecciosas y parasitarias. Para el año 2000 se calculaban en el mundo unos 1000 millones de pacientes con hipertensión arterial; un tercio de ellos se encuentran en los países desarrollados; mientras que las dos terceras partes se encuentra en los países en vías de desarrollo ó emergentes. Los diversos reportes de la prevalencia de la hipertensión en adultos varía entre un 6 y un 43%, pero la mayoría se encuentran entre 20 y 30%, siendo esta prevalencia equivalente a aquella reportada en el ámbito mundial; sin embargo, existe una considerable variación entre países y entre diversas ciudades de un mismo país, siendo importante la realización de estudios con una metodología validada y uniforme que permita la comparación entre países. El grado de conocimiento, tratamiento y control de la hipertensión es menor que en el mundo desarrollado, por tal motivo es urgente el establecimiento de programas para atender este importante problema de salud pública que cubra desde la prevención y la atención primaria hasta los niveles más elevados de atención integral del hipertenso y sus complicaciones y secuelas. 2006 artículo científico 1856-4550 https://www.redalyc.org/articulo.oa?id=170217078002 es http://www.redalyc.org/revista.oa?id=1702 Revista Latinoamericana de Hipertensión application/pdf Sociedad Latinoamericana de Hipertensión Revista Latinoamericana de Hipertensión (República Bolivariana de Venezuela) Num.1 Vol.1

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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