Yini i-Cardiopulmonary Bypass noma i-Heart Lung Bypass?
Iyini Umshini We-Cardiopulmonary Bypass Machine (CBM)?
Umshini we-cardiopulmonary bypass machine (CBM) uvame ukubizwa ngokuthi umshini we-heart-lung bypass machine. Kuyinto idivaysi eyenza umsebenzi wokuhlinzeka ngegazi (ne-oxygen) emzimbeni lapho inhliziyo imiswa ngenqubo yokuhlinzwa.
Ezimweni eziningi, umshini usetshenziselwa ukwenza izinqubo ezinkulu ezidinga inhliziyo ukuba imiswe.
Iziguli zisepomini kuphela uma kuthatha isikhathi eside ukuvimbela inhliziyo ukuba ingabi, ukuhlinzwa okuphelele kwenhliziyo noma inqubo emaphashini, bese uqala kabusha inhliziyo.
Kungani I-Cardiopulmonary Bypass Isebenza?
Ukumisa inhliziyo ngaphandle kokulimaza isiguli, igazi elenziwe nge-oxygen kumele liqhubeke lijikeleza emzimbeni ngesikhathi sokuhlinzwa ngaphandle kokuyeka. I-cardiopulmonary bypass pump yenza umsebenzi wenhliziyo, ukupompa igazi emzimbeni, nokuqinisekisa ukuthi izicubu zomzimba zithola umoya-mpilo abawudinga. Umshini uphinde wene oksijeni egazini ngenkathi uthatha isenzo senhliziyo, esikhundleni somsebenzi wamaphaphu.
I-CBM isetshenziselwa izizathu ezimbili eziyinhloko. Isizathu esivame kakhulu ukuthi inhliziyo ingabekwa ukuhlinzwa. Ukuhlinzwa okwezinhliziyo kungenakwenzeka ukushaya ngenhliziyo, njengoba ukuhlinzeka kuzokwenziwa "ekuhlosheni okuhambayo" noma kuzoba nokulahlekelwa kwegazi okuphawulekayo.
Isibonelo esihle salokhu inqubo yokufakelwa kwenhliziyo - inhliziyo yesiguli kufanele isuswe emzimbeni ngakho inhliziyo enikelwe ingafakwa ngaphakathi. Ngaphandle kwepompo ukuze ishintshe isenzo senhliziyo, ukufakelwa kwenhliziyo kungeke kwenzeke.
Okufanayo nangezinye izindlela zokuhlinza ngamapayipi, kumele kube khona indlela yokugcoba igazi uma amaphaphu engakwazi.
Inqubo yokufakelwa kwamaphaphu idinga indlela ehlukile yokuphefumula igazi lapho amaphaphu engakwazi, kodwa inhliziyo ingaqhubeka ishaya ngesikhathi senqubo.
Kwezinye iziguli, ipompi ayisetshenziselwa ukuhlinzwa, kepha ukusiza ukugcina isiguli siphila lapho sibhekene nokuhluleka kwenhliziyo okungaba ukuphila okuphela. Ezimweni ezithile ezingavamile, isiguli sezinhliziyo singase sibekwe epompo ukusekela isiguli kuze kutholakale ukufakelwa kwenhliziyo .
I-Cardiopulmonary Bypass isebenza kanjani?
Udokotela ohlinzayo uhlanganisa ubhubhe obukhethekile kwisitsha esikhulu segazi (njengokuqala i-IV enkulu kakhulu) evumela igazi eliphethwe yi-oksijeni ukuba liphume emzimbeni bese liya emshinini we-bypass. Lapho, umshini u-oxygenates igazi bese ulibuyisela emzimbeni ngokusebenzisa isethi yesibili yamatayipi, nawo afakwe emzimbeni. Ukuqhuma njalo komshini kuqhuma igazi elenziwe nge-oksijeni emzimbeni, njengokufana nenhliziyo.
Ukubekwa kwama-tubes kunqunywe yizintandokazi zodokotela ohlinzayo. Ama-tubes kumele asuswe endaweni yokuhlinza ukuze angaphazamisi umsebenzi wokuhlinza, kodwa afakwe esitokisini segazi esikhulu ngokwanele ukuze afake izilimo eziyizigaxa nokucindezela kwepompo. Lezi zibhubhu ezimbili ziqinisekisa ukuthi igazi liphuma emzimbeni ngaphambi kokuba lifinyelele enhliziyweni futhi libuyele emzimbeni ngemuva kwenhliziyo, linike udokotela ohlinzayo indawo engasenayo futhi engenagazi ukuba isebenze.
Ithebhu yesithathu nayo ifakwe eduze noma ngqo enhliziyweni, kodwa ayixhunyiwe ku-CPM. Isetshenziselwa ukugubha inhliziyo nge-cardioplegia, isisombululo se-potassium esima inhliziyo. Uma i-cardioplegia iqale ukusebenza, i-CBM iqalile futhi ithatha umsebenzi wenhliziyo nephuphu.
Ngubani ogijima umshini we-Cardiopulmonary Bypass?
Umuntu ogijima nge-cardiopulmonary bypass pump ubizwa ngokuthi i-perfusionist. Ama-Perfusionists ngokuvamile anezinga le-bachelor in field ehlobene nempilo, bese uphishekela iminyaka emibili yokuqeqeshwa kwezemfundo njengengane ye-perfusionist. Amanye ama-perfusionist athatha ukuhlolwa ukuba abe perfusionist emtholampilo eqinisekisiwe, efana nodokotela ophethe ibhodi eliqinisekisiwe ekukhethekile.
Izingozi ze-Cardiopulmonary Bypass
Izingozi zokuba nge-heartp and bypass zihlanganisa ama-blood clots, ukuphuma kwegazi ngemuva kokuhlinzwa, ukulimala kokuhlinzwa emndenini we-phrenic, ukulimala kwezinso ezinzima nokunciphisa amaphaphu kanye / noma umsebenzi wenhliziyo. Lezi zingozi ziyancipha ngezikhathi ezimfushane kule mpompo futhi zanda ngezikhathi zepompo eside.
Ukuze uthole olunye ulwazi: I-Human Heart & Heart Surgery
Izwi elivela:
Noma iyiphi inqubo edinga ukusetshenziswa komshini we-cardiopulmonary bypass umshini omkhulu futhi kufanele uthathwe ngokungathí sina ngokweqile. Ngenkathi izingozi ezihambisana nalezi zinqubo zingabonakala, lezi zindlela zokuhlinzwa zingase zibe nokulondoloza impilo noma ukuthuthukisa impilo.
Uma kungenzeka, kubalulekile ukuthatha isikhathi sokuxoxa ngezingozi kanye nemivuzo yenqubo kanye nezinye izindlela zokuhlinza ngaphambi kokwenza isinqumo.
> Imithombo:
> I-Cardiopulmonary Bypass. Isibhedlela Sezingane ZaseCincinnati. Kufinyelelwe ngo-Ephreli, 2009.
> Izingozi Zezinkinga Zezinkinga ZePulmonary Ukulandela Ukuhlinzwa Kwezinhliziyo Ne-Cardiopulmonary Bypass. Kufinyelelwe ngoMeyi, 2016. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3775118/
> Iyini i-Perfusionist ye-Cardiovascular? I-Perfusion.com. Kufinyelelwe ngo-Ephreli, 2009. http://www.perfusion.com/cgi-bin/absolutenm/templates/articledisplay.asp?articleid=1550
> Yini Ongayilindela Phakathi Nokuhlinzwa Kwezinhliziyo. I-National Heart, i-Lung ne-Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/hs/hs_during.html