{"id":6289,"date":"2018-11-14T17:18:37","date_gmt":"2018-11-14T16:18:37","guid":{"rendered":"https:\/\/cabolanao.com\/?p=6289"},"modified":"2024-11-18T08:43:01","modified_gmt":"2024-11-18T07:43:01","slug":"el-sindrome-de-las-aguas-poco-profundas-en-apnea","status":"publish","type":"post","link":"https:\/\/cabolanao.com\/en\/el-sindrome-de-las-aguas-poco-profundas-en-apnea\/","title":{"rendered":"

The syndrome of ?shallow waters? in apnea<\/p>"},"content":{"rendered":"

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The syndrome of ?shallow waters? in apnea<\/h1>

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The syndrome of ?shallow waters? in apnea in technical language, anoxic syncope of emersion? It consists of a sudden fading that can occur during ascent, near the surface, in the course of prolonged APNEA dives (not with autonomous equipment<\/a>). If the appropriate safety measures are not respected, this phenomenon can lead to drowning that can be fatal.<\/p>

The cause of this phenomenon is hypoxia caused by breathing O2 concentrations lower than 10-12% at 1 ATA, which are incompatible with life? Let us remember that, in the air, the O2 concentration is 21%. Thus, while the freediver remains submerged at depth, the concentration of O2 in the air trapped in his lungs gradually decreases due to its transfer to the blood; however, it does not experience any symptoms because the decrease in the percentage of O2 is compensated by the absolute pressure to which it is subjected: for example, at a depth of 10 meters, it would have 2 ATA x 10% of O2 = 0.2 ATA, equivalent to breathe a 20% of O2 on the surface..<\/p>

The freediver develops his activity in immersion until he feels the need to come out to breathe. As you rise towards the surface, the ambient pressure drops. Close to her; for example, at 3 meters, it happens that there are 1.3 ATA x 10% of O2 = 0.13 ATA, equivalent to breathing a concentration of 13% of O2, an insufficient amount for adequate cerebral oxygenation, resulting in syncope.<\/p>

Preventive security measures<\/strong><\/h3>

The syndrome of ?shallow water? in apnea it is prevented:<\/p>

? Limiting hyperventilation prior to immersion to a maximum of 4 ventilations, to avoid an excessive drop in the level of CO2 in the blood that delays the need to surface to breathe too long.<\/p>

? Diving always accompanied by another diver and watching each other.<\/p>

[\/et_pb_text][et_pb_image src=»https:\/\/cabolanao.com\/wp-content\/uploads\/2018\/11\/El-sindrome-de-las-aguas-poco-profundas-Cabo-la-Nao.jpg» alt=»El síndrome de las aguas poco profundas – Cabo la Nao» title_text=»El síndrome de las aguas poco profundas – Cabo la Nao» align=»center» _builder_version=»4.14.7″ _module_preset=»default» global_colors_info=»{}»][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>","protected":false},"excerpt":{"rendered":"

By Manuel Tomas<\/p>","protected":false},"author":11,"featured_media":11543,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"

[vc_row][vc_column][vc_column_text]<\/p>

El s\u00edndrome de las \u201caguas poco profundas\u201d en apnea<\/strong><\/h1>

El s\u00edndrome de las \u201caguas poco profundas\u201d en apnea en lenguaje t\u00e9cnico, s\u00edncope an\u00f3xico de la emersi\u00f3n\u2014 consiste en un desvanecimiento s\u00fabito que puede acontecer durante el ascenso, cerca de la superficie, en el curso de inmersiones prolongadas en APNEA (no con equipo aut\u00f3nomo<\/a>). De no respetar las adecuadas medidas de seguridad, este fen\u00f3meno puede derivar en un ahogamiento que puede resultar fatal.<\/p>

La causa de este fen\u00f3meno es la hipoxia que se ocasiona al respirar concentraciones de O2 inferiores al 10-12% a 1 ATA, que son incompatibles con la vida \u2014recordamos que, en el aire, la concentraci\u00f3n de O2 es del 21%\u2014. As\u00ed pues, mientras el apne\u00edsta permanece sumergido a profundidad, la concentraci\u00f3n de O2 en el aire atrapado en sus pulmones desciende paulatinamente por su transferencia a la sangre; sin embargo, no experimenta ning\u00fan s\u00edntoma porque el descenso del porcentaje de O2 es compensado por la presi\u00f3n absoluta a la que se encuentra sometido: por ejemplo, a 10 metros de profundidad, tendr\u00eda 2 ATA x 10% de O2 = 0,2 ATA, equivalente a respirar un 20% de O2 en la superficie..<\/p>

El apne\u00edsta desarrolla su actividad en inmersi\u00f3n hasta que siente la necesidad de salir a respirar. Al ir ascendiendo hacia la superficie, la presi\u00f3n ambiental desciende. Cerca de ella; por ejemplo, a 3 metros, sucede que hay 1,3 ATA x 10% de O2 = 0,13 ATA, equivalente a respirar una concentraci\u00f3n del 13% de O2, cantidad insuficiente para una adecuada oxigenaci\u00f3n cerebral, sobreviniendo el s\u00edncope.<\/p>

MEDIDAS DE SEGURIDAD PREVENTIVAS<\/h2>

El s\u00edndrome de \u201caguas poco profundas\u201d en apnea se previene:<\/p>

\u2022 Limitando la hiperventilaci\u00f3n previa a la inmersi\u00f3n a 4 ventilaciones m\u00e1ximo, para evitar un descenso excesivo del nivel de CO2 en sangre que demore demasiado la necesidad de emerger para respirar.<\/p>

\u2022 Buceando siempre acompa\u00f1ado de otro buceador y vigil\u00e1ndose mutuamente.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>","_et_gb_content_width":"","footnotes":""},"categories":[1],"tags":[41,42,44],"class_list":["post-6289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-consejos-practicos-de-buceo","tag-buceo-cabo-la-nao","tag-buceo-comodo","tag-consejos-buceo"],"_links":{"self":[{"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/posts\/6289","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/comments?post=6289"}],"version-history":[{"count":1,"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/posts\/6289\/revisions"}],"predecessor-version":[{"id":215638,"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/posts\/6289\/revisions\/215638"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/media\/11543"}],"wp:attachment":[{"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/media?parent=6289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/categories?post=6289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cabolanao.com\/en\/wp-json\/wp\/v2\/tags?post=6289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}