Ukukhubazeka kwe-Diastolic kubhekisela ekuhlulekeni kwenhliziyo ye-muscle ukuphumula ngokujwayelekile ngemva kwesibindi senhliziyo. Njengoba kulesi sigaba sokuphumuza (okubizwa ngokuthi "i-diastole") ukuthi ama-ventricles enhliziyo (ama-main chambers chamber ) agcwalisa igazi ngokulungiselela ukushaya kwenhliziyo elandelayo, ukungasebenzi kahle kwe-diastolic kungaphazamisa ukugcwalisa inhliziyo.
Lokhu kugcwaliseka okungalimazi kunganciphisa inani legazi inhliziyo ingakwazi ukupompa ngenhliziyo ngayinye futhi ingakhuphula izingcindezi ngaphakathi kwenhliziyo.
Ukungasebenzi kahle kwe-diastolic kungaholela ekuhlulekeni kwenhliziyo ye-diastolic, futhi.
Uhlolo Olubanzi Lwezibonakaliso
Ukukhubazeka kwe-Diastolic ngokwayo ngokuvamile akukhiqizi izimpawu nakancane. Okuvamile, ukwehlisa kancane kancane ukubekezelela umzimba kungase kwenzeke. Kodwa-ke, abantu abaningi abane-diastolic ukukhubazeka abakuboni lesi sibonakaliso noma ngoba baphila ngokuphila okungapheli (okungenye yezinto ezibangela ukukhubazeka kwe-diastolic) noma ngokunciphisa ukunciphisa umzimba wabo ukukhokhela amandla abo okunciphisa ukuzikhandla.
Kodwa, lapho ukwehluleka kwenhliziyo ye-diastolic ihlala, izimpawu ezibalulekile zivamile. Nakuba izimpawu ezenzeka nge-diastolic inhliziyo ukwehluleka kwenhliziyo zifana nezibonakaliso abantu ababhekana nazo abanoma yiluphi olunye uhlobo lokuhluleka kwenhliziyo , izimpawu zamapulmoni-ezibangelwa ukuxubana kwamaphaphu-ngokuvamile zivelele kulabo abane-diastolic yehluleka inhliziyo.
I- dyspnea ejulile (ukuphefumula), evame ukuhambisana nokukhwehlela nokuphefumula okusheshayo, ukubonakaliswa okujwayelekile kwe-diastolic senhliziyo.
Ngaphezu kwalokho, izimpawu ngokuvamile zingase zihlangane ngeziqephu eziqondile ezingahle zivele ngokuzumayo futhi ngaphandle kwesixwayiso.
Lolu hlobo lokuqala okungazelelwe luhluke kakhulu kwipatheni ngokuvamile ebonakala kubantu abanezinhlobo "ezijwayelekile" zokuhluleka kwenhliziyo lapho ukuqala kwe-dyspnea kuvame ukuba kancane kancane, kwenzeka esikhathini esingamahora noma izinsuku.
Izinkinga eziphefumula, eziphefumula kakhulu ezihambisana nokuhluleka kwenhliziyo ye-diastolic zibhekwa njengeziqephu ze "flash pulmonary edema ."
Lezi ziqephu ze-flash pulmary edema zingabangela ezinye izimo zezokwelapha, kufaka phakathi i-fibrillation ye-atrial kanye nezinye izinhlobo ze-tachycardia (izinhliziyo ezinzima ngokushesha), izinkathi zomshuwalense (ukuphakama kwengcindezi ephakeme yegazi, ikakhulukazi i- systolic blood pressure elevations ), neziqephu ze- ischemia yenhliziyo.
Ngayinye yalezi zimo zezokwelapha kungabangela ukuwohloka okuqhubekayo emsebenzini we-diastolic wenhliziyo futhi kungashukumisela umuntu onobuthi obunzima be-diastolic ngaphezu komkhawulo. Futhi, ngenkathi iziqephu ze-edema ye-pulmona ye-flash zibhekwa njengento ephawulekayo yokuhluleka kwenhliziyo ye-diastolic, abantu abanalesi simo bangase babe nakho konke okuncane kakhulu nokuhamba kancane kwe-dyspnea.
Indlela Eyaziwa Ngayo
Ukuhluleka kwenhliziyo ye-Diastolic kutholakala ukuthi uma umuntu enesiqephu sokuhluleka kwenhliziyo nokuhlolwa okulandelayo kubonisa ukuthi umsebenzi we-systolic wenhliziyo (okungukuthi, ikhono lakhe lokukhipha igazi ngesenzo sokuqeda amandla) kuvamile.
Ukusho ngenye indlela, banokuhluleka kwenhliziyo naphezu kokuba nengxenyana evamile ye- ventricular ejection . Eminyakeni yamuva nje izazi ze-cardiologists ziye zaqaphela ukuthi amaphesenti angama-50 abantu abafuna usizo lwezokwelapha ngeziqephu zokungqubuzana kwe-pulmonary acute abe ne-diastolic yehluleka inhliziyo.
Ukukhubazeka kwe-Diastolic kungatholwa yi-echocardiogram, engakwazi ukuhlola izici zokuphumula kwe-diastolic kanye nezinga le-ventricular " yokuqina " kwesokunxele. I-echocardiogram ngezinye izikhathi ingabonakalisa imbangela ye-diastolic ukungasebenzi kubantu abathile.
Isibonelo, i-echocardiogram ingayibonisa imisipha ye-ventricular kwesokunxele (okungukuthi, i-ventricular hypertrophy) ehambisana ne-hypertension kanye ne- hypertrophic cardiomyopathy . Kungabonakalisa nokuba khona kwe- aortic stenosis noma kwe- cardiomyopathies engavinjelwe . (Yonke yale mibandela ingaveza ukukhubazeka kwe-diastolic.)
Kodwa-ke, kubantu abaningi abane-diastolic ukungasebenzi, i-echocardiography ngeke ibonise ezinye izinto ezingavamile ukuchaza ukuthi kungani isimo sisekhona.
Kulezi ziguli, akunakwenzeka ukufaka imbangela ethile ekusebenziseni okungafani kwe-diastolic.
Yeka Indlela Ejwayelekile Yokusebenza Kwe-Diastolic?
Ukukhubazeka kwe-Diastolic kuvamile kakhulu kunezinhliziyo ze-cardiologists ezisetshenziselwa ukucabanga. Ezinye izifundo ze- echocardiographic zithole ukukhubazeka kwe-diastolic kumaphesenti angu-15 abantu abangaphansi kweminyaka engama-50 ubudala nangamaphesenti angu-50 abantu abangaphezu kuka-70.
Ukukhubazeka kwe-Diastolic ikakhulukazi kuyinkinga yabesifazane, futhi. Kuze kube ngamaphesenti angama-75 abantu ababhekene nokuhluleka kwenhliziyo ye-diastolic bangabesifazane.
Ukuhluleka kwenhliziyo ye-Diastolic kutholakala lapho umuntu onesifo somzimba we-diastolic eqala isiqephu se-congestion ye-pulmonary esinamandla okwanele ukuveza izimpawu. Uma isiqephu sokwehluleka kwenhliziyo ye-diastolic senziwa kanye, kungenzeka kakhulu ukuthi kwenzeke futhi, ikakhulukazi uma ukwelashwa kuhloswe.
Izwi elivela
Eminyakeni yamuva nje, izazi ze-cardiologists ziye zaqaphela ukubaluleka kokungasebenzi kahle kwe-diastolic nokuthi yisimo esivame kakhulu kunazo zonke ngaphambili. Kubaluleke kakhulu kunoma ubani onokukhubazeka kwe-diastolic ukuthatha lesi simo ngokubaluleke kakhulu futhi asebenze nodokotela bawo ukuze ahlele isu elihle lokufinyelela umphumela omuhle nangempilo.
> Imithombo:
> Andersen MJ, uBorlaug BA. Ukuhluleka Kwezinhliziyo Ne-Ejection Esilondoloziwe: Ukuqonda Nokuncintisana Kwamanje. I-Curr Cardiol Rep 2014; 16: 501.
> Paulus WJ, Tschöpe C, uSanderson JE, et al. Indlela Yokuthola Ukuhluleka Kwezinhliziyo Ze-Diastolic: Isitatimende Sokuvumelana Sokubonwa Kokwehluleka Kwezinhliziyo Nge-Flexction Ejwayelekile Ye-Ventricular Ejection Ye-Heart Failure kanye ne-Echocardiography Associations ze-European Society of Cardiology. I-Eur Heart J 2007; 28: 2539.