{"id":11385523,"date":"2011-01-15T00:00:00","date_gmt":"2011-01-14T23:00:00","guid":{"rendered":"https:\/\/alertdiver.eu\/uncategorized-cs_cz\/ocni-operace-s-intraoperativnim-plynem-a-jejich-vhodnost-pro-pouziti-pri-pristrojovem-potapeni\/"},"modified":"2011-01-15T00:00:00","modified_gmt":"2011-01-14T23:00:00","slug":"ocni-operace-s-intraoperativnim-plynem-a-jejich-vhodnost-pro-pouziti-pri-pristrojovem-potapeni","status":"publish","type":"post","link":"https:\/\/alertdiver.eu\/cs_CZ\/clanky\/ocni-operace-s-intraoperativnim-plynem-a-jejich-vhodnost-pro-pouziti-pri-pristrojovem-potapeni\/","title":{"rendered":"O\u010cN\u00cd OPERACE S INTRAOPERATIVN\u00cdM PLYNEM A JEJICH VHODNOST PRO POU\u017dIT\u00cd P\u0158I P\u0158\u00cdSTROJOV\u00c9M POT\u00c1P\u011aN\u00cd"},"content":{"rendered":"<p style=\"text-align: justify;\">Jednou z nejv\u011bt\u0161\u00edch v\u00fdzev p\u0159i p\u0159\u00edstrojov\u00e9m pot\u00e1p\u011bn\u00ed je p\u0159edch\u00e1zen\u00ed nehod souvisej\u00edc\u00edch s p\u0159\u00edtomnost\u00ed plynu v lidsk\u00e9m t\u011ble. Zat\u00edmco tekutiny obsa\u017een\u00e9 v t\u011ble je prakticky nemo\u017en\u00e9 komprimovat, plyny reaguj\u00ed na zm\u011bny tlaku v tk\u00e1n\u00edch zm\u011bnou sv\u00e9ho objemu.<br \/> \u010c\u00edm vy\u0161\u0161\u00ed je v tk\u00e1ni tlak, t\u00edm v\u00edce se sni\u017euje objem&nbsp; plyn\u016f v n\u00ed obsa\u017een\u00fd, p\u0159i\u010dem\u017e je patrn\u00e1 tendence k rozpu\u0161t\u011bn\u00ed se do organick\u00fdch kapalin.<br \/>&nbsp;<\/p>\n<p style=\"text-align: justify;\">P\u0159i sn\u00ed\u017een\u00ed tlaku tk\u00e1n\u011b se naopak objem plyn\u016f zv\u011bt\u0161uje a nast\u00e1v\u00e1 opa\u010dn\u00e1 tendence, t.j. prom\u011bna z kapaln\u00e9ho stavu do skupenstv\u00ed plynn\u00e9ho (nap\u0159. tvorba bublinek p\u0159i dekompresi). Tento proces je p\u0159\u00ed\u010dinou tzv. &ldquo;nemoci z dekomprese&rdquo;.<br \/> Kde se nach\u00e1zej\u00ed plyny v t\u011ble za norm\u00e1ln\u00edch podm\u00ednek?<br \/> Pot\u00e1p\u011b\u010di to v\u011bd\u00ed velmi dob\u0159e: v plic\u00edch, v d\u00fdchac\u00edch cest\u00e1ch, ve st\u0159edn\u00edm uchu, v paranaz\u00e1ln\u00edch dutin\u00e1ch, ve st\u0159evech atd. Za n\u011bkter\u00fdch neobvykl\u00fdch podm\u00ednek je v\u0161ak plyn p\u0159\u00edtomen i v \u010d\u00e1stech t\u011bla, kde by za norm\u00e1ln\u00edch okolnost\u00ed b\u00fdt nem\u011bl. Kdy\u017e ponech\u00e1me stranou patologick\u00e9 stavy, b\u00fdv\u00e1 p\u0159\u00ed\u010dina neobvykl\u00e9 p\u0159\u00edtomnosti plynu iatrogenn\u00ed, t.j. vyvolan\u00e1 ur\u010dit\u00fdmi zdravotn\u00edmi postupy. <\/p>\n<p style=\"text-align: justify;\">Plyny se tak\u00e9 pou\u017e\u00edvaj\u00ed pro diagnostick\u00e9 a terapeutick\u00e9 \u00fa\u010dely. P\u0159i stanovov\u00e1n\u00ed diagn\u00f3zy se plyny n\u011bkdy pou\u017e\u00edvaj\u00ed v radiologii, nap\u0159. p\u0159i vy\u0161et\u0159ov\u00e1n\u00ed tlust\u00e9ho st\u0159eva. <br \/> K terapeutick\u00fdm \u00fa\u010del\u016fm se plyny pou\u017e\u00edvaj\u00ed b\u011bhem n\u011bkter\u00fdch chirurgick\u00fdch z\u00e1krok\u016f, jako p\u0159\u00edklady lze uv\u00e9st z\u00e1kroky abdomin\u00e1ln\u00ed (b\u0159i\u0161n\u00ed), gynekologick\u00e9 a o\u010dn\u00ed. V t\u011bchto p\u0159\u00edpadech se m\u016f\u017ee uk\u00e1zat p\u0159\u00edtomnost plynu v poopera\u010dn\u00edm obdob\u00ed jako kontraindikace v\u016f\u010di p\u0159\u00edstrojov\u00e9mu pot\u00e1p\u011bn\u00ed.<br \/> V tomto \u010dl\u00e1nku se budeme v\u011bnovat pou\u017eit\u00ed plynu p\u0159i o\u010dn\u00edch&nbsp; operac\u00edch, zvl\u00e1\u0161t\u011b p\u0159i vitreo-retin\u00e1ln\u00edch chirurgick\u00fdch postupech a jak m\u016f\u017ee pooopera\u010dn\u00ed situace p\u0159inutit pacienty sn\u00ed\u017eit rozsah sv\u00fdch pot\u00e1p\u011b\u010dsk\u00fdch \u010dinnost\u00ed. Pro snadn\u011bj\u0161\u00ed pochopen\u00ed t\u00e9to t\u00e9matiky se vyhneme pou\u017e\u00edv\u00e1n\u00ed matematick\u00fdch vzorc\u016f a vysv\u011btl\u00edme n\u011bkter\u00e9 fyzik\u00e1ln\u00ed pojmy, jejich\u017e v\u00fdznam n\u011bkdy b\u00fdv\u00e1 pon\u011bkud nejasn\u00fd.<\/p>\n<p style=\"text-align: justify;\"><strong>Historie<\/strong>:<br \/> Prvn\u00ed pozorov\u00e1n\u00ed plynov\u00e9 bubliny ve zv\u00ed\u0159ec\u00edm oku spadaj\u00ed do roku 1607. Robert Boyle vytvo\u0159il hyperbarickou komoru a vkl\u00e1dal do n\u00ed r\u016fzn\u00e1 zv\u00ed\u0159ata. Mimo jin\u00e9 zde vystavil dekompresi i zmiji a, i kdy\u017e v jej\u00edm oku zpozoroval bublinu, neum\u011bl si vysv\u011btlit, \u010d\u00edm vlastn\u011b byla ap\u0159\u00ed\u010din\u011bna.<br \/> Ve skute\u010dnosti lze tento pokus pova\u017eovat za prvn\u00ed p\u0159\u00edklad laboratorn\u011b vyvolan\u00e9 dekompesn\u00ed nemoci v d\u011bjin\u00e1ch l\u00e9ka\u0159stv\u00ed.<br \/> Praktick\u00e9 pou\u017e\u00edv\u00e1n\u00ed plynu v o\u010dn\u00ed chirurgii sah\u00e1 do za\u010d\u00e1tku minul\u00e9ho stolet\u00ed. Prvn\u00ed pokus s pou\u017eit\u00edm intraven\u00f3zn\u00edho plynu p\u0159i l\u00e9\u010db\u011b odchl\u00edpnut\u00e9 s\u00edtnice se uskute\u010dnil v roce 1909. Pou\u017eit\u00fdm plynem byl vzduch. V druh\u00e9 polovin\u011b minul\u00e9ho stolet\u00ed za\u010dali o\u010dn\u00ed chirurgov\u00e9 pou\u017e\u00edvat vzduch p\u0159i chirurgick\u00fdch z\u00e1kroc\u00edch na zdeformovan\u00e9 b\u011blim\u011b p\u0159i \u0159e\u0161en\u00ed odchl\u00edpnut\u00e9 s\u00edtn\u00edce.&nbsp; N\u00e1sledovalo dlouhodob\u00e9 (a st\u00e1le existuj\u00edc\u00ed) pou\u017e\u00edv\u00e1n\u00ed \u010dist\u00fdch plyn\u016f a plynn\u00fdch sm\u011bs\u00ed p\u0159i operac\u00edch v p\u0159\u00edpadech vitreo-retin\u00e1ln\u00edch poruch, zvl\u00e1\u0161t\u011b p\u0159i pneumatick\u00e9 retinopexii a vitrektomii.<\/p>\n<p style=\"text-align: justify;\"> <strong>Pou\u017e\u00edv\u00e1n\u00ed plynu v o\u010dn\u00ed chirurgii dnes<\/strong><br \/> <strong> P\u0159i operac\u00edch p\u0159edn\u00ed \u010d\u00e1sti oka<\/strong>, hlavn\u011b p\u0159i \u0161ed\u00e9m a zelen\u00e9m z\u00e1kalu, je jedin\u00fdm pou\u017e\u00edvan\u00fdm plynem vzduch. Pou\u017eit\u00ed plynu p\u0159i t\u011bchto chirurgick\u00fdch z\u00e1kroc\u00edch je v sou\u010dasn\u00e9 dob\u011b ji\u017e dosti vz\u00e1cn\u00e9, nebo\u0165 v modern\u00ed chirurgick\u00e9 praxi byl vzduch nahrazen r\u016fzn\u00fdmi materi\u00e1ly s vhodn\u00fdmi visk\u00f3zn\u00edmi a pru\u017en\u00fdmi vlastnostmi. Funkc\u00ed plynu v t\u011bchto p\u0159\u00edpadech je vytvo\u0159it prostor a z\u00edskat prost\u0159edek k odd\u011blen\u00ed intraokul\u00e1rn\u00edch struktur, kter\u00e9 mus\u00ed chirurg operovat.<br \/> Vzhledem k tomu, \u017ee mno\u017estv\u00ed plynu pou\u017eit\u00e9ho v p\u0159edn\u00ed komo\u0159e je velmi mal\u00e9, reabsorbuje se tento plyn b\u011bhem jednoho a\u017e dvou dn\u00ed, a proto ne\u010din\u00ed \u017e\u00e1dn\u00e9 probl\u00e9my t\u011bm pacient\u016fm, kte\u0159\u00ed se rozhodnout v\u011bnovat se p\u0159\u00edstrojov\u00e9mu pot\u00e1p\u011bn\u00ed ihned, jakmile se zahoj\u00ed pera\u010dn\u00ed r\u00e1na. Je v\u0161ak nutno dodat, \u017ee i kdy\u017e se v oku ji\u017e \u017e\u00e1dn\u00fd plyn nenach\u00e1z\u00ed, doporu\u010duje se po\u010dkat s pot\u00e1p\u011bn\u00edm alespo\u0148 2 m\u011bs\u00edce, aby se vyhnulo infekc\u00edm opera\u010dn\u00ed r\u00e1ny nebo n\u00e1raz\u016fm na ni.<br \/> &nbsp;<\/p>\n<p style=\"text-align: justify;\"><strong>Operace zadn\u00ed \u010d\u00e1sti oka<\/strong><br \/> Dlouhodob\u011b p\u0159etrv\u00e1vaj\u00edc\u00ed plyn uvnit\u0159 oka m\u016f\u017ee zp\u016fsobit v\u00e1\u017en\u00e9 probl\u00e9my t\u011bm pacient\u016fm, kte\u0159\u00ed jsou p\u0159\u00edli\u0161 nedo\u010dkav\u00ed a cht\u011bj\u00ed se vr\u00e1tit k p\u0159\u00edstrojov\u00e9mu pot\u00e1p\u011bn\u00ed co nejd\u0159\u00edve.<br \/> Tyto plyny se pou\u017e\u00edvaj\u00ed ve vitreoretin\u00e1ln\u00ed chirurgii, zvl\u00e1\u0161t\u011b p\u0159i chirurgick\u00fdch z\u00e1kroc\u00edch maj\u00edc\u00edch vy\u0159e\u0161it odchl\u00edpnutou s\u00edtnici nebo chorobnou o\u010dn\u00ed skvrnu.<br \/> V t\u011bchto p\u0159\u00edpadech nen\u00ed d\u016fvodem pro pou\u017eit\u00ed plynu &ldquo;vytvo\u0159it prostor&rdquo; nebo pomoci nahl\u00e9dnout na intraokul\u00e1rn\u00ed struktury (co\u017e by naopak zt\u011b\u017eovalo jejich rozpozn\u00e1n\u00ed a ur\u010den\u00ed), \u00fa\u010delem je tzv. tamponov\u00e1n\u00ed. Tamponov\u00e1n\u00ed znamen\u00e1 aplikaci tlaku plynu na s\u00edtnici tak, aby se dos\u00e1hlo jej\u00edho &ldquo;n\u00e1vratu&rdquo; do p\u0159irozen\u00e9 polohy, jestli\u017ee do\u0161lo k jej\u00edmu odchl\u00edpen\u00ed. <\/p>\n<p style=\"text-align: justify;\">Odchl\u00edpen\u00ed s\u00edtnice je stav, kdy se s\u00edtnice odd\u011blila od st\u011bny oka, ke kter\u00e9 za norm\u00e1ln\u00edho stavu p\u0159ipojena. Pro snadn\u011bj\u0161\u00ed vysv\u011btlen\u00ed a lep\u0161\u00ed pochopen\u00ed t\u00e9to situace si p\u0159edstavme oko jako n\u011bjakou m\u00edstnost. Vnit\u0159n\u00ed st\u011bny m\u00edstnosti jsou pokryty tapetou. Protr\u017een\u00ed tapety je nejvhodn\u011bj\u0161\u00edm p\u0159irovn\u00e1n\u00edm poru\u0161en\u00ed s\u00edtnice.<br \/> Jestli\u017ee se tapeta protrhne, za\u010dne trhlinou prostupovat vlhkost a odlepovat tapetu od st\u011bny d\u00e1l a d\u00e1l. P\u0159\u00ed\u010diny poru\u0161en\u00ed\/protr\u017een\u00ed s\u00edtnice spo\u010d\u00edvaj\u00ed v odchl\u00edpen\u00ed sklivce, co\u017e je fyziologick\u00fd stav, kter\u00fd v\u011bt\u0161inou postihne lidi a\u017e po p\u0159ekro\u010den\u00ed ur\u010dit\u00e9ho v\u011bku. Nen\u00ed pot\u0159eba zach\u00e1zet do p\u0159\u00edli\u0161n\u00fdch podrobnost\u00ed v t\u00e9to pom\u011brn\u011b slo\u017eit\u00e9 problematice, ale je nutno \u0159\u00edci, \u017ee v n\u011bkter\u00fdch p\u0159\u00edpadech m\u016f\u017ee tento stav v\u00e9st a\u017e k protr\u017een\u00ed s\u00edtnice s dal\u0161\u00edmi n\u00e1sledn\u00fdmi trhlinami r\u016fzn\u00e9ho stupn\u011b z\u00e1va\u017enosti. V\u011bt\u0161inu trhlin v s\u00edtnici nezp\u016fsobuje jej\u00ed odchl\u00edpen\u00ed. Mnoho z nich lze \u0159e\u0161it laserem, jestli\u017ee o\u010dn\u00ed l\u00e9ka\u0159 usoud\u00ed, \u017ee jsou nebezpe\u010dn\u00e9 a mohly by n\u00e1sledn\u011b zap\u0159\u00ed\u010dinit odchl\u00edpen\u00ed s\u00edtnice (<a href=\"#fig._1\">obr\u00e1zky 1 a 2<\/a>). <\/p>\n<p style=\"text-align: justify;\">N\u011bkter\u00e9 jin\u00e9 stavy s\u00edtnice, p\u0159i kter\u00fdch rovn\u011b\u017e hroz\u00ed n\u00e1sledn\u00e9 protr\u017een\u00ed, lze tak\u00e9 \u0159e\u0161it laserem. Kdy\u017e se v\u0161ak trhlina vyvine a\u017e v odchl\u00edpen\u00ed s\u00edtnice, vytvo\u0159\u00ed se mezi s\u00edtnic\u00ed a st\u011bnou oka prostor napln\u011bn\u00fd kapalinou a ta br\u00e1n\u00ed norm\u00e1ln\u00ed metabolick\u00e9 v\u00fdm\u011bn\u011b mezi s\u00edtnic\u00ed a c\u00e9vnatkovou vrstvou bohatou na \u017eilky a c\u00e9vy, odkud se zaji\u0161\u0165uje v\u00fd\u017eiva s\u00edtnicov\u00fdch nervov\u00fdch bun\u011bk. Jestli\u017ee se prvotn\u00ed odchl\u00edpen\u00ed nel\u00e9\u010d\u00ed, za\u010dne se roz\u0161i\u0159ovat na celou s\u00edtnici, co\u017e zp\u016fsopuje slepotu. \u00da\u010delem chirurgick\u00fdch z\u00e1krok\u016f s c\u00edlem odstranit odchl\u00edpen\u00ed s\u00edtnice je uzav\u0159\u00edt jej\u00ed protr\u017een\u00ed a umo\u017enit, aby se zp\u011btn\u011b vst\u0159ebala kapalina nach\u00e1zej\u00edc\u00ed se pod s\u00edtnic\u00ed. <\/p>\n<p style=\"text-align: justify;\">Uzav\u0159en\u00ed trhliny v s\u00edtnici lze prov\u00e9st tzv. episkler\u00e1ln\u00edm chirurgick\u00fdm z\u00e1krokem, p\u0159i kter\u00e9m se na vn\u011bj\u0161\u00ed st\u011bnu oka um\u00edst\u00ed n\u011bjak\u00fd vsuvn\u00fd prvek (zpravidla z houbovit\u00e9 nebo silikonov\u00e9 pry\u017ee). Takto se st\u011bna o\u010dn\u00ed bulvy p\u0159itla\u010d\u00ed na s\u00edtnici zvn\u011bj\u0161ku a trhlina se uzav\u0159e.&nbsp; Uzav\u0159en\u00ed trhliny v s\u00edtnici v\u0161ak lze dos\u00e1hnout i zevnit\u0159 tzv. vitreoretin\u00e1ln\u00ed operac\u00ed, p\u0159i n\u00ed\u017e se pomoc\u00ed speci\u00e1ln\u00edch n\u00e1stroj\u016f odstran\u00ed sklivec a pot\u00e9 se pou\u017eije n\u011bjak\u00fd tamponovac\u00ed materi\u00e1l (plyn nebo kapalina), kter\u00fd tla\u010d\u00ed s\u00edtnici zevnit\u0159 proti st\u011bn\u011b oka, \u010d\u00edm\u017e se trhlina uzav\u0159e a umo\u017en\u00ed op\u011btovn\u00e9 vst\u0159eb\u00e1n\u00ed kapaliny pod s\u00edtnic\u00ed. V\u00fdvoj t\u011bchto chirurgick\u00fdch postup\u016f \u0159e\u0161\u00edc\u00edch odchl\u00edpen\u00ed s\u00edtnice vedl k n\u00e1r\u016fstu pou\u017e\u00edv\u00e1n\u00ed plynu p\u0159i prov\u00e1d\u011bn\u00fdch operac\u00edch.<br \/>&nbsp;<\/p>\n<p style=\"text-align: justify;\">V posledn\u00edch n\u011bkolika letech za\u010dali chirurgov\u00e9 v n\u011bkter\u00fdch vybran\u00fdch p\u0159\u00edpadech pou\u017e\u00edvat minim\u00e1ln\u011b invazivn\u00ed postup zvan\u00fd pneumatick\u00e1 retiniopexie, jej\u00ed\u017e podstata spo\u010d\u00edv\u00e1 v injek\u010dn\u00edm vst\u0159\u00edknut\u00ed plynu do oka s n\u00e1sledn\u00fdm laserov\u00fdm z\u00e1sahem do s\u00edtnicov\u00e9 trhliny (p\u0159\u00ed\u010diny odchl\u00edpen\u00ed s\u00edtnice).<br \/> T\u00edmto zp\u016fsobem se vy\u0159e\u0161\u00ed odchl\u00edpnut\u00ed s\u00edtnice bez pou\u017eit\u00ed chirurgick\u00fdch n\u00e1stroj\u016f, a sice vst\u0159iknut\u00edm plynu, kter\u00fd tla\u010d\u00ed s\u00edtnici na st\u011bnu oka a tak ji k n\u00ed znovu p\u0159ipoj\u00ed. Plynov\u00e1 bublina m\u00e1 pak tendenci &ldquo;vzn\u00e9st se&rdquo;, to znamen\u00e1, \u017ee vystoup\u00e1 a setrv\u00e1v\u00e1 n\u011bkde v nejvy\u0161\u0161\u00ed \u010d\u00e1sti oka (<a href=\"#fig._2\">viz obr. 2<\/a>). <\/p>\n<p style=\"text-align: justify;\">Kdy\u017e pacient le\u017e\u00ed, tla\u010d\u00ed bublina na krystalickou \u010do\u010dku. Kdy\u017e pacient stoj\u00ed nebo vzp\u0159\u00edmen\u011b sed\u00ed, tla\u010d\u00ed bublina na s\u00edtnici sm\u011brem od horn\u00ed \u010d\u00e1sti oka. <br \/> Proto je nutn\u00e9, aby pacient b\u011bhem prvn\u00edch 24-36 hodin po operaci z\u016fstal v poloze, o kter\u00e9 rozhodne chirurg, nebo\u0165 bublina mus\u00ed tla\u010dit na spr\u00e1vnou oblast (kde se nach\u00e1z\u00ed trhlina) a kde do\u0161lo k odchl\u00edpnut\u00ed s\u00edtnice. V\u0161eobecn\u011b pak plat\u00ed, \u017ee b\u011bhem jednoho m\u011bs\u00edce se plyn vst\u0159iknut\u00fd do oka zcela vst\u0159eb\u00e1 do ostatn\u00edch o\u010dn\u00edch tk\u00e1n\u00ed.<\/p>\n<p style=\"text-align: justify;\"> <strong>Jak dlouho z\u016fst\u00e1v\u00e1 plyn v oku po operaci<\/strong> <br \/> R\u016fzn\u00e9 plyny z\u016fst\u00e1vaj\u00ed v oku r\u016fzn\u011b dlouhou dobu. Po injek\u010dn\u00edm vst\u0159iknut\u00ed plynu do oka se aplikovan\u00fd objem u vzduchu nezm\u011bn\u00ed, av\u0161ak objemy jin\u00fdch plyn\u016f, jak\u00fdmi jsou nap\u0159. sulfur exafluoride nebo perfluorocarbon se prvn\u00ed dny po operaci zv\u011bt\u0161uj\u00ed a n\u00e1sledn\u011b se postupn\u011b zcela vst\u0159ebaj\u00ed.<br \/> Kdy\u017e je p\u016fvodn\u00ed expanze plynu ne\u017e\u00e1douc\u00ed, vst\u0159ikuje se do oka nam\u00edsto n\u011bjak\u00e9ho \u010dist\u00e9ho plynu sp\u00ed\u0161e sm\u011bs r\u016fzn\u00fdch plyn\u016f se vzduchem, p\u0159i\u010dem\u017e se slo\u017een\u00ed takov\u00e9 sm\u011bsi pe\u010dliv\u011b propo\u010d\u00edt\u00e1, aby nedo\u0161lo k expanzi uvnit\u0159 oka. <\/p>\n<p style=\"text-align: justify;\">A\u0165 ji\u017e se pou\u017eije \u010dist\u00fd plyn nebo n\u011bjak\u00e1 plynn\u00e1 sm\u011bs, po n\u011bkolika dnech od operace za\u010d\u00edn\u00e1 vst\u0159eb\u00e1v\u00e1n\u00ed plynu do tk\u00e1n\u00ed a t\u00edm se zmen\u0161uje rozm\u011br intraokul\u00e1rn\u00ed bubliny.<br \/> Celkov\u00e1 doba pot\u0159ebn\u00e1 pro \u00fapln\u00e9 vst\u0159eb\u00e1n\u00ed bubliny se li\u0161\u00ed podle druhu pou\u017eit\u00e9ho plynu. N\u011bkdy je pro tamponov\u00e1n\u00ed oka zapot\u0159eb\u00ed 3 a\u017e 4 t\u00fddn\u016f. V\u0161obecn\u011b v\u0161ak lze \u0159\u00edci, \u017ee o n\u011bco d\u00e9le ne\u017e jednom m\u011bs\u00edci se do o\u010dn\u00edch tk\u00e1n\u00ed beze zbytku vst\u0159eb\u00e1 jak\u00fdkoliv druh plynu.<\/p>\n<p style=\"text-align: justify;\"><strong><br \/> Intraokul\u00e1rn\u00ed tlak<\/strong> <br \/> Intraokul\u00e1rn\u00ed tlak obvykle m\u011b\u0159\u00ed o\u010dn\u00ed specialista p\u0159\u00edstrojem zvan\u00fdm tonometr. Intraokul\u00e1rn\u00ed tlak (kter\u00fd by se m\u011bl spr\u00e1vn\u011bji naz\u00fdvat relativn\u00edm intraokul\u00e1rn\u00edm tlakem) vznik\u00e1 rozd\u00edlem mezi absolutn\u00edm tlakem uvnit\u0159 oka a absolutn\u00edm tlakem vzduchu.<br \/> Tlak mezi 10 a\u017e 20 mm rtu\u0165ov\u00e9ho sloupce se pova\u017euje za norm\u00e1ln\u00ed. To znamen\u00e1, \u017ee absolutn\u00ed tlak uvnit\u0159 oka je o 10 a\u017e 20 mm rtu\u0165ov\u00e9ho sloupce vy\u0161\u0161\u00ed ne\u017e absolutn\u00ed atmosf\u00e9rick\u00fd tlak vzduchu.<br \/> Kdy\u017e se na opera\u010dn\u00edm s\u00e1le aplikuje do oka n\u011bjak\u00fd plyn, stoupne intraokul\u00e1rn\u00ed tlak na n\u011bkolik hodin, pot\u00e9 se tento tlak stabilizuje a postupn\u011b se vr\u00e1t\u00ed na 10-20 mm rtu\u0165ov\u00e9ho sloupce, nebo\u0165 mezi plynovou bublinou a o\u010dn\u00edmi tk\u00e1n\u011bni prob\u00edh\u00e1 pomal\u00e1 v\u00fdm\u011bna plyn\u016f. Jak si uk\u00e1\u017eeme za chv\u00edli, kdy\u017e je v oku p\u0159\u00edtomna plynov\u00e1 bublina, rychl\u00e9 zm\u011bny vn\u011bj\u0161\u00edho tlaku (nap\u0159. p\u0159i pot\u00e1p\u011bn\u00ed nebo l\u00e9t\u00e1n\u00ed) vyvol\u00e1vaj\u00ed zm\u011bny intraokul\u00e1rn\u00edho tlaku. <\/p>\n<p style=\"text-align: justify;\">Ve skute\u010dnosti plat\u00ed, \u017ee intraokul\u00e1rn\u00ed plynov\u00e1 bublina se nem\u016f\u017ee do tk\u00e1n\u00ed vst\u0159ebat dostate\u010dn\u011b rychle. Jak jsme se ji\u017e zm\u00ednili, zntraokul\u00e1rn\u00ed tlak vznik\u00e1 rozd\u00edlem mezi absolutn\u00edm vnit\u0159n\u00edm tlakem a tlakem vn\u011bj\u0161\u00edm. Za p\u0159\u00edtomnosti intraokul\u00e1rn\u00ed plynov\u00e9 bubliny plat\u00ed n\u00e1sleduj\u00edc\u00ed:<br \/> Jestli\u017ee se vn\u011bj\u0161\u00ed tlak sni\u017euje (nap\u0159. b\u011bhem letu), intraokul\u00e1rn\u00ed tlak se zvy\u0161uje. A naopak, je-li v oku p\u0159\u00edtomn\u00e1 plynov\u00e1 bublina a vn\u011bj\u0161\u00ed tlak se zvy\u0161uje (nap\u0159. b\u011bhem pot\u00e1p\u011bn\u00ed), intraokul\u00e1rn\u00ed tlak se sni\u017euje. Zv\u00fd\u0161en\u00ed intraokul\u00e1rn\u00edho tlaku je nebezpe\u010dn\u00e9 kv\u016fli mo\u017en\u00e9mu po\u0161kozen\u00ed, kter\u00e9 by mohla expanduj\u00edc\u00ed plynov\u00e1 bublina zp\u016fsobit na intraokul\u00e1rn\u00ed struktu\u0159e sv\u00fdm zv\u011bt\u0161en\u00fdm objemem. Sn\u00ed\u017een\u00ed intraokul\u00e1rn\u00edho tlaku je rovn\u011b\u017e nebezpe\u010dn\u00e9 kv\u016fli stla\u010dov\u00e1n\u00ed tk\u00e1n\u00ed o\u010dn\u00ed bulvy (kter\u00e1 v takov\u00e9m p\u0159\u00edpad\u011b m\u011bkne).<\/p>\n<p style=\"text-align: justify;\"> <strong>Intraokul\u00e1rn\u00ed tlak a p\u0159\u00edstrojov\u00e9 pot\u00e1p\u011bn\u00ed<\/strong> <br \/> Nejd\u0159\u00edve se pod\u00edvejme na pot\u00e1p\u011bn\u00ed bez ochr\u00e1n\u011bn\u00fdch o\u010d\u00ed nebo s kontaktn\u00edmi \u010do\u010dkami, ale bez pot\u00e1p\u011b\u010dsk\u00e9 masky. B\u011bhem sestupu pod vodu p\u016fsob\u00ed vn\u011bj\u0161\u00ed tlak vody na o\u010dn\u00ed tk\u00e1n\u011b.<br \/> V tomto p\u0159\u00edpad\u011b odpov\u00edd\u00e1 vn\u011bj\u0161\u00ed tlak vody vnit\u0159n\u00edmu tlaku ve v\u0161ech \u010d\u00e1stech oka. Intraokul\u00e1rn\u00ed tlak (relativn\u00ed) &ndash; jak jsme jej popsali d\u0159\u00edve &ndash; m\u00e1 tendenci z\u016fstat stejn\u00fd, ale absolutn\u00ed ntraokul\u00e1rn\u00ed tlak stoup\u00e1 oproti tlaku naho\u0159e na hladin\u011b vody.<br \/> Hyperbarick\u00e1 atmosf\u00e9ra vede ke zmen\u0161en\u00ed objemu plynov\u00e9 bubliny vpraven\u00e9 do oka p\u0159ed ponorem, co\u017e vede ke zborcen\u00ed o\u010dn\u00ed st\u011bny s mo\u017en\u00fdm po\u0161kozen\u00edm intraokul\u00e1rn\u00edch struktur. P\u0159i p\u0159\u00edstrojov\u00e9m pot\u00e1p\u011bn\u00ed se v\u0161ak pou\u017e\u00edvaj\u00ed masky napln\u011bn\u00e9 vzduchem. Kv\u016fli vzduchov\u00e9 bublin\u011b v masce se skute\u010dn\u00fd vn\u011bj\u0161\u00ed tlak p\u016fsob\u00edc\u00ed na oko vypo\u010d\u00edt\u00e1v\u00e1 jen obt\u00ed\u017en\u011b. Rozhran\u00ed mezi vzduchem a obli\u010dejem pot\u00e1p\u011b\u010de v masce je rozhoduj\u00edc\u00edm bodem pro stanoven\u00ed skute\u010dn\u00e9ho tlaku. <\/p>\n<p style=\"text-align: justify;\">Jestli\u017ee se tlak vzduchu p\u0159ed o\u010dima pot\u00e1p\u011b\u010de nezv\u00fd\u0161il &ldquo;kompenza\u010dn\u00edm man\u00e9vrem pro vyrovn\u00e1n\u00ed tlaku v masce&rdquo;, pak je tlak v masce ni\u017e\u0161\u00ed ne\u017e tlak okoln\u00ed vody. V\u00fdsledkem je &ldquo;s\u00e1n\u00ed&rdquo;, tzv. smr\u0161t\u011bn\u00ed masky. O\u010dn\u00ed a obli\u010dejov\u00e9 tk\u00e1n\u011b maj\u00edc\u00ed vy\u0161\u0161\u00ed tlak ne\u017e je tlak v masce maj\u00ed tendenci vtla\u010dovat se do masky.<br \/> Tento jev je ve sv\u011bt\u011b p\u0159\u00edstrojov\u00e9ho pot\u00e1p\u011bn\u00ed zn\u00e1m\u00fd jako &bdquo;smr\u0161\u0165ov\u00e1n\u00ed masky&rsquo;&rsquo;. N\u011bkdy m\u00e1 za n\u00e1sledek i deformaci a posun o\u010dn\u00edch tk\u00e1n\u00ed sm\u011brem do masky s mo\u017en\u00fdm ed\u00e9mem a dokonce i krv\u00e1cen\u00edm.<br \/> Oproti situaci na hladin\u011b se p\u0159i sestupu pod vodu v\u00fdznamn\u011b zvy\u0161uje rozd\u00edl mezi tlakem v krevn\u00edch cest\u00e1ch a interstici\u00e1ln\u00edch (meziprostorn\u00edch) tk\u00e1n\u00edch a tlakem vzduchu v masce. <\/p>\n<p style=\"text-align: justify;\">Proto doch\u00e1z\u00ed p\u0159i pot\u00e1p\u011b\u010dsk\u00fdch nehod\u00e1ch, p\u0159i kter\u00fdch nen\u00ed tlak v masce spr\u00e1vn\u011b komprimov\u00e1n, k po\u0161kozen\u00ed o\u010dn\u00ed oblasti, co\u017e b\u00fdv\u00e1 prov\u00e1zeno bolestmi a podspojivkov\u00fdm krv\u00e1cen\u00edm. Na\u0161t\u011bst\u00ed k po\u0161kozen\u00ed a krv\u00e1cen\u00ed uvnit\u0159 oka doch\u00e1z\u00ed jen z\u0159\u00eddka. U pot\u00e1p\u011b\u010de pod vodou, kter\u00fd m\u00e1 v oku plynovou bublinu a tlak v jeho masce je stejn\u00fd jako vn\u011bj\u0161\u00ed tlak vody, se intraokul\u00e1rn\u00ed plynov\u00e1 bublina zmen\u0161uje stejn\u00fdm zp\u016fsobem jako ve shora uveden\u00e9m p\u0159\u00edkladu nechr\u00e1n\u011bn\u00e9ho oka a oko se m\u016f\u017ee zbortit.<br \/> Rozd\u00edly tlaku uvnit\u0159 masky oproti rozd\u00edl\u016fm vn\u011bj\u0161\u00edho tlaku vody mohou vyvolat zm\u011bny objemu plynu uvnit\u0159 oka. V p\u0159\u00edpad\u011b &ldquo;smr\u0161t\u011bn\u00e9 masky&rdquo; je tlak v masce (a tedy i tlak na oko) ni\u017e\u0161\u00ed ne\u017e tlak vody, co\u017e m\u016f\u017ee zp\u016fsobit zv\u011bt\u0161en\u00ed objemu intraokul\u00e1rn\u00ed plynov\u00e9 bubliny. <\/p>\n<p style=\"text-align: justify;\">To m\u016f\u017ee m\u00edt za n\u00e1sledek rozta\u017een\u00ed bulvy a jej\u00ed posun sm\u011brem ke krystalick\u00e9 \u010do\u010dce a dal\u0161\u00edm o\u010dn\u00edm struktur\u00e1m. Opak mo\u017en\u00fd nen\u00ed, nebo\u0165 kdy\u017e by byl tlak v masce (a tedy i tlak na oko) vy\u0161\u0161\u00ed ne\u017e tlak vody, vedlo by to k \u00faniku vzduchu z masky a vyrovn\u00e1n\u00ed tlaku v masce tak, aby se shodoval s tlakem vn\u011bj\u0161\u00edm.<br \/> Vzhledem k t\u011bmto fyzik\u00e1ln\u00edm a fyziologick\u00fdm z\u00e1konitostem se nedoporu\u010duje pot\u00e1p\u011bt se tak dlouho, dokud v oku z\u016fst\u00e1v\u00e1 plyn po jak\u00e9mkoliv chirurgick\u00e9m z\u00e1kroku. Toto doporu\u010den\u00ed b\u00fdv\u00e1 tak\u00e9 uvedeno na instrukt\u00e1\u017en\u00edm list\u011b od v\u00fdrobc\u016f plynov\u00fdch lahv\u00ed pou\u017e\u00edvan\u00fdch p\u0159i chirurgick\u00fdch z\u00e1kroc\u00edch tohoto druhu.<\/p>\n<p style=\"text-align: justify;\"> <strong>Intraokul\u00e1rn\u00ed tlak a l\u00e9t\u00e1n\u00ed<\/strong> <br \/> Pot\u00e1p\u011b\u010di v\u011bnuj\u00edc\u00ed se p\u0159\u00edstrojov\u00e9mu pot\u00e1p\u011bn\u00ed \u010dasto cestuj\u00ed na velk\u00e9 vzd\u00e1lenosti do velmi vzd\u00e1len\u00fdch destinac\u00ed. Je-li v oku p\u0159\u00edtomn\u00fd intraokul\u00e1rn\u00ed plyn, je pro takov\u00e9 oko l\u00e9t\u00e1n\u00ed nebezpe\u010dn\u00e9. Tlak vzduchu v kabin\u011b letadel b\u00fdv\u00e1 stejn\u00fd jako atmosf\u00e9rick\u00fd tlak ve v\u00fd\u0161ce 1 500 metr\u016f nad mo\u0159em.<br \/> Absolutn\u00ed intraokul\u00e1rn\u00ed tlak, jak jsme se o n\u011bm zm\u00ednili ji\u017e d\u0159\u00edve, z\u016fst\u00e1v\u00e1 zpravidla stejn\u00fd, ale relativn\u00ed tlak (t.j. v porovn\u00e1n\u00ed s vn\u011bj\u0161\u00edm) se zvy\u0161uje oproti tlaku na leti\u0161ti, z kter\u00e9ho letadlo startovalo (samoz\u0159ejm\u011b v p\u0159\u00edpad\u011b, \u017ee leti\u0161t\u011b le\u017e\u00ed n\u00ed\u017ee ne\u017e 1 500 metr\u016f nad mo\u0159em).<br \/> To vede na palub\u011b letadla k expanzi plynov\u00e9 bubliny vpraven\u00e9 za pokojov\u00e9ho tlaku (v opera\u010dn\u00edm s\u00e1le) p\u0159i atmosf\u00e9rick\u00e9m tlaku zpravidla bl\u00edzk\u00e9m tlaku na hladin\u011b mo\u0159e (tedy p\u0159i vy\u0161\u0161\u00edm tlaku). Takto expanduj\u00edc\u00ed plynov\u00e1 bublina m\u016f\u017ee zp\u016fsobit intraokul\u00e1rn\u00ed po\u0161kozen\u00ed posunem a stla\u010den\u00edm intraokul\u00e1rn\u00edch tk\u00e1n\u00ed. Proto by se osoba maj\u00edc\u00ed v oku plynovou bublinu m\u011bla l\u00e9t\u00e1n\u00ed vyhnout.<\/p>\n<p style=\"text-align: justify;\"> <strong>Vhodnost pro p\u0159\u00edstrojov\u00e9 pot\u00e1p\u011bn\u00ed <br \/> L\u00e9\u010dba s\u00edtnicov\u00fdch trhlin laserem<\/strong><br \/> Pot\u00e1p\u011b\u010di se \u010dasto na tento postup vypt\u00e1vaj\u00ed a cht\u011bj\u00ed o n\u011bm zn\u00e1t v\u00edce informac\u00ed. V n\u011bkter\u00fdch p\u0159\u00edpadech tato praxe souvis\u00ed se zaveden\u00edm plynu (p\u0159i pneumatick\u00e9 retinopexii), co\u017e bude v tomto \u010dl\u00e1nku diskutov\u00e1no pozd\u011bji. Ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f se v\u0161ak laserov\u00e9 z\u00e1kroky prov\u00e1d\u011bj\u00ed bez zav\u00e1d\u011bn\u00ed plynu do oka.<br \/> Jedn\u00e1 se o profylaktickou l\u00e9\u010dbu s\u00edtnicov\u00fdch trhlin, kter\u00e1 se prov\u00e1d\u00ed za \u00fa\u010delem prevence proti skute\u010dn\u00e9mu odchl\u00edpnut\u00ed s\u00edtnice. V n\u011bkter\u00fdch p\u0159\u00edpadech lze laserem \u0159e\u0161it (ohrani\u010dit) i mal\u00e9 lokalizovan\u00e9 odchl\u00edpen\u00ed, kdy se zablokuje jeho roz\u0161\u00ed\u0159en\u00ed na ostatn\u00ed \u010d\u00e1sti s\u00edtnice a t\u00edm se zabr\u00e1n\u00ed dal\u0161\u00edmu po\u0161kozen\u00ed. <\/p>\n<p style=\"text-align: justify;\">P\u0159i n\u011bkter\u00fdch chirurgick\u00fdch postupech \u0159e\u0161\u00edc\u00edch odchl\u00edpen\u00ed s\u00edtnice se pou\u017e\u00edv\u00e1 laser pot\u00e9, co se s\u00edtnice znovu p\u0159ipojila pomoc\u00ed episkler\u00e1ln\u00ed nebo intraokul\u00e1rn\u00ed chirurgick\u00e9 metody (pomoc\u00ed vitrektomie nebo pneumatick\u00e9 retinopexie). P\u0159i pou\u017eit\u00ed laseru jde ve v\u0161ech p\u0159\u00edpadech o vyvol\u00e1n\u00ed mikroskopick\u00e9ho pop\u00e1len\u00ed s\u00edtnice, po kter\u00e9m jizva vytvo\u0159en\u00e1 hojen\u00edm blokuje prosakov\u00e1n\u00ed kapaliny z vitrea do oblasti pod s\u00edtnic\u00ed.<br \/> Jestli\u017ee nebyl do oka vpraven plyn, tak po laserov\u00e9m z\u00e1sahu za \u00fa\u010delem uzav\u0159en\u00ed s\u00edtnicov\u00fdch trhlin nebo kv\u016fli degeneraci s\u00edtnice, kter\u00e1 nebyla odchl\u00edpen\u00e1, neexistuje v\u016f\u010di p\u0159\u00edstrojov\u00e9mu pot\u00e1p\u011bn\u00ed \u017e\u00e1dn\u00e1 kontraindikace. Samoz\u0159ejm\u011b je nutno vyhnout se o\u010dn\u00edmu traumatu nebo nadm\u011brn\u00e9 n\u00e1maze po dobu asi 3 t\u00fddn\u016f od operace, dokud se zcela nezahoj\u00ed jizva na s\u00edtnici. A b\u011bhem pot\u00e1p\u011bn\u00ed je rovn\u011b\u017e nutno se vyhnout &rsquo;&rsquo;smr\u0161\u0165ov\u00e1n\u00ed masky&rsquo;&rsquo;. <\/p>\n<p style=\"text-align: justify;\"><strong>Operace o\u010dn\u00edch z\u00e1kal\u016f, pneumatick\u00e1 retinopexie, vitrektomie, episkler\u00e1ln\u00ed chirurgie p\u0159i odchl\u00edpen\u00ed s\u00edtnice<br \/> <\/strong> Jako preventivn\u00ed opat\u0159en\u00ed se doporu\u010duje vyhnout se pot\u00e1p\u011bn\u00ed a cestov\u00e1n\u00ed letadlem po dobu asi 2 m\u011bs\u00edc\u016f od podroben\u00ed se t\u011bmto chirurgick\u00fdm z\u00e1krok\u016fm.<br \/> B\u011bhem takto dlouh\u00e9 rekonvalescence se plyn pou\u017eit\u00fd p\u0159i operaci bezpe\u010dn\u011b vst\u0159eb\u00e1 do o\u010dn\u00ed tk\u00e1n\u011b. K p\u0159\u00edstrojov\u00e9mu pot\u00e1p\u011bn\u00ed a k let\u00e1n\u00ed je mo\u017eno se vr\u00e1tit i d\u0159\u00edve, ale a\u017e pot\u00e9, co k tomu d\u00e1 svolen\u00ed o\u010dn\u00ed specialista, to jest v p\u0159\u00edpadech, kdy p\u0159i operaci nebyl do oka plyn v\u016fbec vpraven, nebo kdy\u017e o\u010dn\u00ed specialista zjist\u00ed, \u017ee \u017e\u00e1dn\u00fd plyn se ji\u017e v oku nenach\u00e1z\u00ed a opera\u010dn\u00ed r\u00e1na se zcela zahojila.<\/p>\n<p style=\"text-align: justify;\">&nbsp;<\/p>\n<table width=\"100%\" cellspacing=\"10\" cellpadding=\"10\" border=\"1\">\n<tbody>\n<tr>\n<td style=\"text-align: justify;\"><a name=\"fig._1\">Fig. 1<\/a><\/td>\n<td style=\"text-align: justify;\"><a name=\"fig._2\">Fig. 2<\/a><\/td>\n<td style=\"text-align: justify;\">Fig. 3<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" alt=\"\" src=\"\/image\/image_gallery?uuid=939f91e9-d49c-45af-8e70-aa7a7c245b94&amp;groupId=4582962&amp;t=1351673510546\" \/><\/td>\n<td style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"198\" alt=\"\" src=\"\/image\/image_gallery?uuid=7af0b68b-75ab-4f6a-804f-2bf5c7e10685&amp;groupId=4582962&amp;t=1351673645723\" \/><\/td>\n<td style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"198\" alt=\"\" src=\"\/image\/image_gallery?uuid=73b96550-fb2b-4c2f-a3e4-3900b4297a67&amp;groupId=4582962&amp;t=1351673510549\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\">&nbsp;<\/p>\n<p><strong>Pod\u011bkov\u00e1n\u00ed <\/strong><\/p>\n<p style=\"text-align: justify;\">Zvl\u00e1\u0161tn\u00ed pod\u011bkov\u00e1n\u00ed pat\u0159\u00ed Diego Dickovi,Giorgio Orlandellimu a doktoru Paolo Perosovi z pot\u00e1p\u011b\u010dsk\u00e9ho&nbsp; st\u0159ediska Cala Lunga v La Maddalena za jejich pomoc p\u0159i sestavov\u00e1n\u00ed tohoto \u010dl\u00e1nku.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jednou z nejv\u011bt\u0161\u00edch v\u00fdzev p\u0159i p\u0159\u00edstrojov\u00e9m pot\u00e1p\u011bn\u00ed je p\u0159edch\u00e1zen\u00ed nehod souvisej\u00edc\u00edch s p\u0159\u00edtomnost\u00ed plynu v lidsk\u00e9m t\u011ble. Zat\u00edmco tekutiny obsa\u017een\u00e9 v t\u011ble je prakticky nemo\u017en\u00e9&#8230;<\/p>\n","protected":false},"author":1,"featured_media":11373770,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[384],"tags":[],"authors":[559],"class_list":["post-11385523","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clanky","authors-a-palumbo-cs_cz"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O\u010cN\u00cd OPERACE S INTRAOPERATIVN\u00cdM PLYNEM A JEJICH VHODNOST PRO POU\u017dIT\u00cd P\u0158I P\u0158\u00cdSTROJOV\u00c9M POT\u00c1P\u011aN\u00cd - Alert Diver<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/alertdiver.eu\/cs_CZ\/clanky\/ocni-operace-s-intraoperativnim-plynem-a-jejich-vhodnost-pro-pouziti-pri-pristrojovem-potapeni\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O\u010cN\u00cd OPERACE S INTRAOPERATIVN\u00cdM PLYNEM A JEJICH VHODNOST PRO POU\u017dIT\u00cd P\u0158I P\u0158\u00cdSTROJOV\u00c9M POT\u00c1P\u011aN\u00cd - Alert Diver\" \/>\n<meta property=\"og:description\" content=\"Jednou z nejv\u011bt\u0161\u00edch v\u00fdzev p\u0159i p\u0159\u00edstrojov\u00e9m pot\u00e1p\u011bn\u00ed je p\u0159edch\u00e1zen\u00ed nehod souvisej\u00edc\u00edch s p\u0159\u00edtomnost\u00ed plynu v lidsk\u00e9m t\u011ble. 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