<prompt> Fingqa isihloko: Wayekhuphuke iGreat Wall yaseChina, wehla ngomkhumbi emfuleni omude kunayo yonke eFrance futhi wadansa iminyaka engaphezu kweyishumi. Futhi sonke lesi sikhathi, uKaren MacLachlan wayengazi ukuthi unesifo senhliziyo esibulalayo, esingaxilongwanga esasingase simbulale noma nini. Lo muntu owazibiza ngokuthi uthanda ukuzivocavoca wazalwa enesifo senhliziyo esibulala izingane ezingamaphesenti angu-90 ngaphambi kokuba zifinyelele eminyakeni yokuqala yokuphila uma singabonwa. Lona wesifazane oneminyaka engu-25 ubudala, waseGlasgow, wayengazi ukuthi unaso lesi sifo esibulalayo - esivame ukutholakala lapho ezalwa - kwaze kwaba yilapho inhliziyo yakhe isima ngokungazelelwe. I-ticking time bomb: UKaren MacLachlan, owazibiza ngokuthi ungumthandi womzimba okhuthele, wayengazi ukuthi unesifo senhliziyo esibulalayo, esingaxilongwanga esasingambulala nganoma yisiphi isikhathi. Wathi: Lapho ngiquleka, umama wacabanga ukuthi ngikhukhulekile. Kwaze kwaba yilapho ezwa umsindo wokuhlaba okwakuqhamuka esifubeni sami lapho abiza khona i-ambulense. Wayecabanga ukuthi ngifile ngoba isikhumba sami sasisiphenduke umbala omnyama ofana nokufa njengoba ngangilele phansi ngingaphili. UNksz MacLachlan waphuthunyiswa esibhedlela futhi wafakwa esimweni sokungaphili kahle. Futhi ngokumangalisayo, ngemva kokuhlinzwa ukuze ahlanganiswe kabusha inhliziyo yakhe, useluleme ngokuphelele. UNksz MacLachlan watholakala enesifo sokuphazamiseka komthambo wamathambo ALCAPA. Lesi yisimo senhliziyo esingavamile lapho i-ventricle eyinhloko yenhliziyo, enikeza umzimba umoya-mpilo, ingaxhunyiwe kahle. Ngokuvamile, lesi sifo sitholakala lapho ingane izalwa, kodwa kunamathuba angu-90 ekhulwini okuthi isiguli sife ngenxa yokuhluleka kwenhliziyo lapho sesineminyaka eyodwa uma singatholakali. UNksz MacLachlan wathi: Ekuqaleni, odokotela babekholelwa ukuthi inhliziyo yami yayimi ngenxa ye-Sudden Adult Death Syndrome hhayi i-ALCAPA - akuvamile ukuba umuntu asinde ngemva kokukhulelwa nayo. Odokotela bamangala ngokuthi ngangiphile nalesi simo isikhathi eside kangaka futhi ngangingakaze ngibe nezinkinga ngaphambili. Ngempela, wayelokhu eziqhenya ngokuba umuntu onempilo enhle. Odokotela bangibuza ukuthi ngike ngalwa kanzima yini ngikhuphuka amagquma, kodwa ngiye ngahamba ngeGreat Wall of China - ngikulungele ngempela futhi ngiyasebenza, esho. Ngangidansa iminyaka eyishumi, ngigibela isikebhe...  <response>: UKaren MacLachlan wayengazi ukuthi unesifo senhliziyo esingalapheki. Bazalwa benesifo senhliziyo esibulala izingane ezingu-90 ngaphambi konyaka wokuqala wokuphila uma singabonwa. Ngabona ukuthi kukhona okungahambi kahle lapho equleka. Ukuhlolwa kwembula ukuthi wayenenkinga engavamile lapho inhliziyo yakhe yayingaxhunyiwe khona ngendlela efanele. Manje usehlinzwe futhi usendleleni eya ekululameni. 