Artificial heart valve Artificial heart valve An artificial heart valve is a device implanted in the heart of a patient with valvular heart disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery. Valves are integral to the normal physiological functioning of the human heart. Natural heart valves are evolved to forms that perform the functional requirement of inducing unidirectional blood flow through the valve structure from one chamber of the heart to another. Natural heart valves become dysfunctional for a variety of pathological causes. Some
Human trafficking in Argentina the country in "Tier 2" in 2017. There are many laws that touch on the theme of trafficking; historically the Ley Palacios of 1913 was the first law in the protection to protect victims of sexual exploitation and slavery, as well as to punish those responsible. It was the first legislation in the entire American continent and signified a great advance in human rights in the country. The International Day Against Human Trafficking commemorates the enactment of this law. Argentina, as a signatory to the United Nations Protocol to Prevent, Suppress and Punish Trafficking in Persons, especially Women and Children,