Iindonga zemithambo yegazi zibuthathaka ngenxa yezizathu ezahlukahlukeneyo, iifiber zilahlekelwa ukunyaniseka kwazo, ekugqibeleni zikhokelela kwi-aneurysm. Ngaphandle kokonyango, esi sifo siphelela kuqala ngokukhutshwa komzimba, kwaye emva kokugqitywa ngokupheleleyo komthamo kunye nokuphuma kwegazi ngaphakathi. Njengoko unyango lwezonyango lubonisa, i-aneurysm exhaphakileyo ye-aorta esiswini i-75% yazo zonke iimeko zokuphazamiseka kwegazi.
Aneurysm we-aorta - izizathu
Ukulimala nokudakalisa kweendonga zeemithana yegazi kubangela:
- ngxinzelelo lwegazi;
- izifo zentsholongwane, eziyingozi kwimibhobho kunye nemivilini, umzekelo, isifo se-syphilis ;
- i-atherosclerosis , ngenxa yokuba esi sifo sikhuthaza ukufakwa kwe-cholesterol (lipid plaques) kwiindonga zeempahla, ezikhokelela ekunciphiseni kwe-lumen kunye nokwanda kwexinzelelo ngexesha lokuhamba kwegazi;
- aortitis;
- izifo zofuzo ezihambelana nokutshintshwa kwezicubu ezinxibelelwano.
Aneurysm we-aorta - iimpawu
Isibonakaliso esona sisoloko sisinomdla kunye nesisoloko senzeke somonakalo we-artery siyintlungu yesifo. Uyabonakala ngakwesobunxele besisu kunye nommandla osondele kwintambo, ungayirhaxisa emva, ingakumbi kumqolo osezantsi. Ukongezelela, iintlungu ngezinye iinkcukacha zinikeza ukuhluma, izitho ezingaphantsi kunye namatye. Ubume bokungonwabi kudla ngokuba yi-paroxysmal, nangona ezinye izigulane zikhalaza ngesifo sosizi esiqhubekayo. Olu phawu luvela ngenxa yengcinezelo eyenziwa ngodongeni lwama-aortic, kwiingcambu zentsholongwane yentambo yomgogodla, kunye ne-plexuses ye-nerve kwi-retroperitoneal space.
Iinkcukacha ezongezelelweyo:
- uvakalelo lwe-pulsation eqinile kwisisu;
- ukucima;
- uvakalelo olukhulu ngaphezu kwendoda;
- kunciphisa ukutya;
- ukuhlanza kunye nesiphithiphithi;
- ukuqhenyiswa okungapheliyo;
- kuncipha ngokomzimba.
Kokubili i-aneurysm eqhelekileyo kunye ne-exortiony ye-aorta yesisu ingaqhubela phambili ngokungaqhelekanga, ngamanye amaxesha ihamba kunye nentlungu epholileyo esiswini nasemathambo. Ngako oko, izigulane kaninzi azihambi esibhedlele ukuncedwa, ukuchaza impawu ngokuchithwa okuqhelekileyo.
Uhlu lwe-Aneurysm lwe-aorta yesisu
Njengomthetho, ngexesha lokugqitywa komda we-artery, ukuphuma kwegazi kwangaphakathi kubakho, okuhamba kunye nokuphazamiseka kwesigulane. Phantse zonke iimeko ziphela kwisiphumo esibulalayo ngenxa yokulahleka okukhulu kwegazi. Ngokwezifundo zonyango, ukuba ububanzi be-aneurysm ye-aorta yesisu buyi-5 cm okanye ngaphezulu, umngcipheko wokuphuka kwawo ukhula kuma-70%. Ingozi eyona nto kukuba akunakwenzeka ukuchaza kwangaphambili umzuzu wokuphuka ngenxa yeempawu okanye iimpawu.
Aneurysm ye-aorta yesigxina esiswini - unyango
Ngenxa yokuba isifo esicatshungulwayo asiqhathaniswa ukuba sitholakale kwangoko, akukho myeza okanye olunye unyango olulondolozayo. Unyango lwe-aneurysm ye-aorta esiswini iqhutyelwa kuphela yindlela yokugada.
I-Aneurysm ye-aorta yesigxina sokusebenza esiswini
Ingundoqo yongenelelo lokuchukumisa ukususa inxalenye ye-inelastic edibeneyo ye-aorta eyonakalisiwe ukusuka ekuphumeni kwegazi. I-lumen ekhoyo echithwa yinto ekhethekileyo yeprothemthi eyenziweyo yento yokwenza izinto, eyenziwe phakathi kweendonga eziphilileyo zesitya segazi. Kwiimeko apho ukwandiswa kwemibhobho ye-aliac eyenzekayo kwaye ulwahlulo lwodonga lwe-aorti luqhubeka, i-blucity encircated in the ends of prosthesis isetyenziswe.
Ukusebenza kwenziwa phantsi kwe-anesthesia jikelele kwaye ikhuselekile, kuba indawo engummiselo we-aortic ayinalutho kumzimba kwaye ukulahlwa akukwenzeka.