I-atherossteosis kanye nezifo zangaphakathi ezihambisana nohlelo lwezinhliziyo zivame ukutholakala ngokushesha.
Le nto ichazwa iqiniso lokuthi ukwephulwa kwe-lipid ne-protein metabolism imvamisa kungumphumela noma imbangela yanoma yisiphi isifo senhliziyo.
Ngakho-ke, ukuxilongwa kokuqala kwe-atherossteosis kudlala indima ebalulekile - inqubo eyinkimbinkimbi, ngoba i-pathology ekuqaleni cishe ayizivezi.
Izigaba zokuthuthuka nezimbangela ze-atherosulinosis
Nge-atherossteosis, kukhona ukunqwabelana kwe-cholesterol ne-lipid izingxenyeni eziphakathi nendawo zangaphakathi, ngenxa yalokho lapho usawoti we-calcium ubekwa khona emithanjeni ye-caliber ephakathi nendawo enkulu futhi izicubu ezithintekayo zikhula.
Izimpawu zokuqala ze-atherosclerosis zivela lapho i-artery ivinjelwe ngaphezulu kwesigamu.
Izimpawu zesifo zincike endaweni yemikhumbi ethintekile.
Kwamukelwa ukuhlukanisa izigaba ezintathu zokukhula kwe-pathology.
Owokuqala ukuthuthukiswa kwamachilo wamafutha - ngaphambili ukubonakaliswa kwalesi sifo. Kuvela ngenxa yokuqongelela kwama-macrophage namaseli abushelelezi bemisipha, wona ahlanganisa i-lipids. Ngokuhamba kwesikhathi, kuba umucu wamafutha, kodwa ukuba khona kwawo akuhlali kusho ukuthi umuntu uguliswa yi-atherosclerosis. Ngisho nasezinganeni, amabala amanoni abonwa emikhunjini enobubanzi be-1-2 mm.
Okwesibili ukukhula kwesigcini se-fibrous esikuleya lwangaphakathi lomkhumbi. Siqukethe ama-esters nama-cholesterol amakristalu, okuwumgogodla othambile, nezingxenyana ze-lipid - isembozo esiminyene. Ukwanda kwezindawo ezinemithambo yegazi ezinamandla kubangela ukuncipha kokukhanya komthambo. I-cholesterol ivela egazini, inqwabelana ezindongeni zomkhumbi.
Okwesithathu - ukuba khona kwezifo eziyinkimbinkimbi - isigaba sokugcina ekwakhiweni kwe-atherosclerosis. Kuvela nokwehla kobukhulu bekhompiyutha yama-fibrous deposits ngaphansi kwama-65 microns, kanye nokwenzeka kwama-microcracks nezilonda ebusweni bayo. Lokhu kufaka ukunamathiswa kwamaplateletthi ku-capsule, ebangela i-thrombosis, unhlangothi, ukushaya kwenhliziyo kanye nezinye izifo ezihambisana nokugeleza kwegazi okulimazayo noma ukunqamuka ngokuphelele komthambo othintekile.
Ukwakheka kwamadiphozi e-atheromatous kubhekwa njengenqubo yemvelo, kepha kunezinto ezimbalwa ezingakubambezela noma kusheshise.
I-Pathanatomy ifaka izizathu ezifana nalezi:
- Ubulili nobudala. Lesi sifo sikhula emadodeni kaningi kaningi kunabesifazane. Ngaphezu kwalokho, izimpawu zokuqala emadodeni zivela eminyakeni engama-45, nabesifazane - kusukela eminyakeni engama-55.
- Izakhi zofuzo Kubandakanya izici ezinjengomsebenzi wamasosha omzimba, ukuba khona kwe-dyslipoproteinemia yefa kanye namazinga e-hormone.
- Imikhuba emibi. Okuyingozi kakhulu ohlelweni lwezinhliziyo ukubhema, njengoba Ugwayi ngamunye uqukethe inani elikhulu le-nicotine ne-tar elimazayo. Awukwazi ukudlula ngotshwala, yize i-100 g le wayini ebomvu eyomile kusihlwa kungukuvikela okuhle komfutho wegazi ophakeme.
Ngaphezu kwalokho, imbangela yezinguquko ze-pathological ingaba khona kobukhona besisindo ngokweqile.
Ukukhuluphala kubangela izifo eziningi - isifo sokuqina kwemizwa, isifo sikashukela, njll., Ngakho-ke, udinga ukulungisa isisindo somzimba.
Izinhlobo eziyinhloko ze-atherosclerosis
Kunezinhlobo eziningi eziphambili zesifo.
Okuvame kakhulu ukwahlukaniswa kwe-atherosclerosis, kuye ngokuthi indawo ye-lesion ye-atheromatous emithanjeni yegazi.
Izinhlobo zesifo zivela zombili ngokuzimela nangokuhlelekile.
Izinhlobo ezilandelayo ze-atherosclerosis ziyahlukaniswa:
- I-atherosclerosis yemikhumbi ye-coronary, imvamisa ibonakaliswa yizinhlungu zenhliziyo. Ngenxa yomonakalo emithanjeni yenhliziyo, ukugeleza kwe-oksijini kuyi-myocardium kuyaphazamiseka. Ngenxa yalokhu, ukuqhubekela phambili kwe-pathology kuholela ku-angina pectoris, ukushaya kwenhliziyo, isifo senhliziyo kanye nokufa kwengozi kungazelelwe.
- Ifomu le-aortic iyi-lesion ye-artery enkulu kunazo zonke emzimbeni - i-aorta. Ukuthuthukiswa kwamakhemikhali e-cholesterol kuthinta umsebenzi wazo zonke izitho nezinhlelo.
- Isifo sokuqina kwemithambo yezinso. Phakathi kwezimpawu zalesi sifo, izinhlungu ngenkathi uchama, ukuba khona kwegazi emchini, ukuhlaselwa kokuhlanza nomcanuzelelwa kufanele kuqokonyiswe. Ukuthuthukiswa kwalesi sifo kufaka umfutho wegazi ophakeme kanye nokwehluleka kwezinso.
- I-atherosclerosis yemikhumbi yokugoba. Ingqondo ingenye yezixhumanisi eziphambili zohlelo oluphambili lwezinzwa, Ngakho-ke, ukubulawa yindlala kwa-oxygen kwalesi sitho kuholela emiphumeleni emibi, ngokwesibonelo, ukuhlaselwa yisifo sohlangothi noma kwesikhashana.
- Ukwehlukanisa i-atherosulinosis yemikhawulo engezansi nengaphezulu. Ekuqaleni, izimpawu ezinjengokulahleka kwezinwele emilenzeni nasezingalweni, redness yeminwe, ebuhlungwini, emilenzeni ebunjiwe, njll. Kuyaqapheleka.Ukuvezwa okuyingozi kakhulu kwaleli hlobo le-atherosclerosis ukuhumusha ngezikhathi ezithile kanye necrosis yezicubu zomzimba.
- I-atherosulinosis yemithambo ye-mesenteric ekondla amathumbu. Ukubonakaliswa okuyinhloko kwalesi sifo ukuhlaselwa ubuthi besisu - ubuhlungu be-colic-efana nesisu. Ingozi i-thrombosis yamagatsha emithambo yegazi ene-necrosis yodonga lwamathumbu kanye ne-mesentery.
Kungakhathalekile ukuthi hlobo luni lwe-pathology, izimpawu zangaphandle zezilonda ze-atheromatous vascular kungavela:
- Ama-xanthomas - ukwakheka okufana "nama-tubercles" atholakala endaweni yokuhlangana namathambo;
- i-senile arch - ukubukeka kwemivimbo ephuzi emaphethelweni e-cornea.
Ngaphezu kwalokho, ama-xanthelasms angavela - ukwakheka kwamabala aphuzi esikhunjeni, kuvame ukuba nomlingiswa onobuthi, ngenxa yokufakwa kwe-cholesterol ne-triglycerides.
Izinhlobo ze-Hyperlipidemia nguFredrickson
I-Hyperlipidemia ingukudla okweqile kwezinga elejwayelekile le-lipids nama-lipoprotein ku-plasma yegazi.
Lesi sifo yisici esikhulu ekwakhiweni kwezifo zenhliziyo, kubandakanya i-atherosclerosis.
Uhlobo nobuningi besihlobo | Izinkomba | I-Lipid ebangela i-hyperlipidemia | I-hyperlipidemia eyisisekelo | Ihyperlipidemia yesibili |
І (1%) | Ukushoda kwe-lipoprotein lipase (LPLase), hyperchilomicronemia | Kakhulu triglycerides | Ukushoda kwe-genetic LPL | Ukuthuthukiswa kwe-pancreatitis, i-systemic lupus erythematosus (SLE), isifo sikashukela |
I-IIa (10%) | I-LDL ephezulu | I-Cholesterol | I-hypercholesterolemia yomndeni | Ukuvela kwe-nephrosis, hypothyroidism, porphyria acute, idiopathic hypercalcemia |
IIb (40%) | Ukuhlushwa okukhulu kwe-LDL ne-VLDL | I-cholesterol ne-triglycerides | I-hypercholesterolemia yomndeni kanye ne-hyperlipidemia | Ukuthuthukiswa kwesifo sikashukela, nephrotic syndrome |
I-III (1%) | I-STD ephezulu | I-cholesterol ne-triglycerides | I-dysbetalipoproteinemia yomndeni | Ukuvela kwe-hypothyroidism, i-dysglobulinemia, isifo sikashukela |
IV (45%) | Khulisa ukugxila kwe-VLDL | Triglycerides | I-hypertriglyceridemia yomndeni, kanye ne-hyperlipidemia yomndeni | Ukuvela kwe-SLE, ukwehluleka kwezinso, isifo sikashukela, isifo se-nephrotic, i-glycogenosis |
V (5%) | Amazinga aphezulu e-VLDLP nama-chylomicrons | Kakhulu cholesterol kanye triglycerides | I-hypertriglyceridemia yomndeni, i-hyperlipidemia yomndeni ehlangene | Ukuthuthukiswa kwesifo sikashukela, i-glycogenosis, isifo se-nephrotic, i-hypothyroidism, i-dysglobulinemia |
I-Hypercholesterolemia - Izifo Eziyenzeka
I-Hypercholesterolemia ngomqondo othile iyisifo esingesona isifo. Esikhundleni salokho, kungumbandela wokuqala wentuthuko yama-pathologies athile.
I-Hypercholesterolemia ibonakala nge-cholesterol ephezulu ye-plasma. Izinhlobo eziyinhloko nezesibili zalesi sifo ziyahlukaniswa.
I-hypercholesterolemia eyisisekelo ihlukaniswe izinhlobo eziningi:
- Umndeni Enhlizweni yentuthuko yayo ukungasebenzi kahle ekusebenzeni kwama-LDL receptors. Ngaphezu kwalokho, ama-homozygotes abonwa ngokuvama kwesigidi esisodwa. Ezigulini, ukugcwala kwe-cholesterol kuyahlukahluka kusuka ku-15 kuye ku-31 mmol / L. Ezimweni eziningi, izifo zenhliziyo ezi-coronary zanda zifinyelela eminyakeni engama-20.
- I-Polygenic. Kuyaziveza njengomphumela wemikhuba yokudla engafanele noma ukukhuluphala ngokweqile ngemuva kokuluthwa njengelifa. Ukuhlushwa kwe-cholesterol ku-plasma yegazi kusuka ku-6 kuye ku-8 mmol / L. Ezigulini ezinezifo zenhliziyo ezi-coronary zenzeka ngaphambi kweminyaka engama-60.
- Kuhlanganiswe Umndeni. Lokhu okubhalwe phansi kwenzeka kuphela ku-1-2% yabantu.
I-Hypercholesterolemia yesibili yisifo esenzeka nge-renal pathologies, isifo sikashukela i-mellitus (uhlobo I nohlobo II), i-hypothyroidism, i-pancreatitis, izifo zesibindi, ukukhuluphala ngokweqile kanye nezifo ze-biliary tract.
Leli fomu livela kaningi kakhulu kunelokuqala.
Ukwelashwa nokuvimbela lesi sifo
I-Atherossteosis ayikwazi ukwelapheka ngokuphelele, kepha kungenzeka ukumisa ukubekwa kwamachaphaza e-cholesterol ngokuxilongwa nokwelashwa okufika ngesikhathi.
Izindlela zokuxilonga ze-atherosclerosis okusolwa zifaka umlando wezokwelapha, ukuhlolwa kokuqala kweziguli, izindlela zelebhu kanye nezinsizakalo zocwaningo. Phakathi kokuhlolwa okuyinhloko kweelebhu, i-cholesterol ephelele nokuqina kwe-atherogenicity kuyabonakala. Izindlela zokuxilonga insimbi zifaka i-angiography, i-coronography, i-aortography, i-ultrasound yama-renal artery, resovasography ne-ultrasound.
Ezimweni ezingama-80%, ukwelashwa ngezidakamizwa kusiza ukuqeda izimpawu zesifo futhi kuvikele nemiphumela emibi. Udokotela ubeka le mithi elandelayo:
- Izimo ziyizidakamizwa ezidume kakhulu ekwelapheni i-atherossteosis. Isenzo sabo sihlose ukunciphisa umsebenzi wesibindi ekukhiqizeni i-cholesterol. Izibonelo zezidakamizwa ezinjalo yi-rosuvastatin ne-atorvastatin.
- Ama-latency e-LCD avimbela ukwakheka kwama-bile acid esibindini. Amakhambi aphumelelayo yi-Colesevelam ne-Colestyramine. Njengomphumela wokusebenzisa ngokulandelana kwe-LCD, ukusetshenziswa kwe-cholesterol kuyandiswa ukuqinisekisa inqubo ejwayelekile yokugaya.
- Ama-fidrate yizidakamizwa ezichitha ama-triglycerides, ngaleyo ndlela ziqinisa imetabolism ye-lipid. Ekhemisi ungathenga, ngokwesibonelo, iTrikor noma i-Atromid.
- INiacin umuthi odlala indima ebalulekile ekwelapheni i-atherosulinosis. Ikhiqiza umphumela we-antispasmodic ne-vasodilator, kepha ayinciphisi i-cholesterol. Izidakamizwa eziqukethe i-nicotinic acid zifakwe ku-mellitus yesifo sikashukela, izifo ze-gallbladder nesibindi.
Ezimweni ezisezingeni eliphakeme, kuhlinzekwa ukuhlinzwa. I-Angioplasty isetshenziselwa izindlela ezihlasela kancane, kanti i-vastery prosthetics kanye ne-shunting kubhekiselwa kuzo izindlela ezihlasela kakhulu.
Ukwelashwa nokuvimbela i-atherossteosis, ukondleka okhethekile kumele kubhekwe. Kungcono ukulandela ukudla okune-carb ephansi nge-cholesterol ephezulu. Akufaki ukusetshenziswa kwemikhiqizo enjalo:
- inyama enamafutha nezitsha zenhlanzi;
- ushokoledi, muffin, namakhekhe nesinkwa esimhlophe;
- ukhukhamba, izitsha zokuthosa nezabhemayo;
- imikhiqizo yobisi enamafutha;
- ukudla okulula, ukudla okusheshayo, amafutha we-trans;
- ikhofi eqinile netiye elimnyama, ushukela.
Esikhundleni salokho, lokhu kudla kuyicetshiswe ngezinhlobo ezinamafutha aphansi enyama nezinhlanzi, imifino, imifino nezithelo, imikhiqizo ephansi enamafutha e-lactic acid, isinkwa esinsundu nezinhlamvu ezihlukahlukene.
Umphumela we-atherosclerosis ezithweni zangaphakathi zangaphakathi uchazwa kuvidiyo kule ndatshana.