{"id":5970,"date":"2026-10-19T09:48:16","date_gmt":"2026-10-19T09:48:16","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-laeknavisindum-dadi-helgason\/"},"modified":"2026-10-19T09:48:16","modified_gmt":"2026-10-19T09:48:16","slug":"doktorsvorn-i-laeknavisindum-dadi-helgason","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-laeknavisindum-dadi-helgason\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed l\u00e6knav\u00edsindum &#8211; Da\u00f0i Helgason"},"content":{"rendered":"<div class=\"field-items\">\n<div class=\"field-item even\" property=\"content:encoded\">\n<p>Da\u00f0i Helgason ver doktorsritger\u00f0 s\u00edna \u00ed l\u00e6knav\u00edsindum vi\u00f0 L\u00e6knadeild H\u00e1sk\u00f3la \u00cdslands. Ritger\u00f0in ber heiti\u00f0: <strong>Acute Kidney Injury Following Cardiac Surgery and Coronary Angiography &#8211; Incidence, Risk Factors and Outcome. Br\u00e1\u00f0ur n\u00fdrnaska\u00f0i \u00ed kj\u00f6lfar hjartaa\u00f0ger\u00f0a og krans\u00e6\u00f0a\u00fer\u00e6\u00f0inga &#8211; T\u00ed\u00f0ni, \u00e1h\u00e6ttu\u00fe\u00e6ttir og afdrif.<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p>Andm\u00e6lendur eru dr. G\u00f6ran Dellgren, d\u00f3sent vi\u00f0 Sahlgrenska H\u00e1sk\u00f3lasj\u00fakrah\u00fasi\u00f0 \u00ed Gautaborg og dr. Helga Gu\u00f0mundsd\u00f3ttir, s\u00e9rfr\u00e6\u00f0ingur \u00ed n\u00fdrnal\u00e6kningum vi\u00f0 Ullev\u00e5l H\u00e1sk\u00f3lasj\u00fakrah\u00fasi\u00f0.<\/p>\n<p>\u00a0<\/p>\n<p>Umsj\u00f3narkennari og lei\u00f0beinandi var dr. T\u00f3mas Gu\u00f0bjartsson, pr\u00f3fessor vi\u00f0 L\u00e6knadeild. Auk hans s\u00e1tu \u00ed doktorsnefnd Martin Ingi Sigur\u00f0sson, pr\u00f3fessor vi\u00f0 L\u00e6knadeild, Run\u00f3lfur P\u00e1lsson, pr\u00f3fessor vi\u00f0 s\u00f6mu deild, Ingibj\u00f6rg J\u00f3na Gu\u00f0mundsd\u00f3ttir, yfirl\u00e6knir, og \u00d3lafur Sk\u00fali Indri\u00f0ason, s\u00e9rfr\u00e6\u00f0ingur.<\/p>\n<p>\u00a0<\/p>\n<p>Engilbert Sigur\u00f0sson, pr\u00f3fessor og forseti L\u00e6knadeildar H\u00e1sk\u00f3la \u00cdslands, stj\u00f3rnar ath\u00f6fninni.<\/p>\n<p>\u00a0<\/p>\n<p><strong>\u00c1grip af ranns\u00f3kn<\/strong><\/p>\n<p>Br\u00e1\u00f0ur n\u00fdrnaska\u00f0i (BNS) er \u00feekktur fylgikvilli eftir hjartaa\u00f0ger\u00f0ir og tengist hann aukinni sj\u00fakd\u00f3msbyr\u00f0i og h\u00e6rri d\u00e1nart\u00ed\u00f0ni sj\u00faklinga. \u00ddmsir \u00e1h\u00e6ttu\u00fe\u00e6ttir BNS eru \u00feekktir vi\u00f0 opnar hjarta\u00f0ger\u00f0ir eins og notkun hjarta- og lungnav\u00e9lar en vi\u00f0 krans\u00e6\u00f0a\u00fer\u00e6\u00f0ingu hefur skuggaefni veri\u00f0 tali\u00f0 geta skert starfsemi n\u00fdrna. \u00der\u00e1tt fyrir a\u00f0 BNS hafi veri\u00f0 vi\u00f0fangsefni \u00fdmissa ranns\u00f3kna \u00e1 undanf\u00f6rnum \u00e1rum er \u00fdmsum spurningum enn \u00f3svara\u00f0 var\u00f0andi \u00e1h\u00e6ttu\u00fe\u00e6tti BNS og afdrif sj\u00faklinga, s\u00e9rstaklega til lengri t\u00edma.<\/p>\n<p>\u00a0<\/p>\n<p>Doktorsritger\u00f0in byggir \u00e1 fj\u00f3rum afturskyggnum ranns\u00f3knum sem h\u00f6f\u00f0u \u00fea\u00f0 markmi\u00f0 a\u00f0 kanna t\u00ed\u00f0ni og \u00e1h\u00e6ttu\u00fe\u00e6tti BNS eftir krans\u00e6\u00f0a\u00fer\u00e6\u00f0ingar og \u00ferj\u00e1r mismunandi opnar hjartaa\u00f0ger\u00f0ir: krans\u00e6\u00f0ahj\u00e1veitu, \u00f3s\u00e6\u00f0arlokuskipti og vi\u00f0ger\u00f0 \u00e1 \u00f3s\u00e6\u00f0arflysjun af ger\u00f0 A. Jafnframt voru \u00e1hrif BNS \u00e1 afdrif sj\u00faklinga metin, s\u00e9rstaklega me\u00f0 tilliti til langt\u00edma lifunar og \u00fer\u00f3unar \u00e1 langvinnum n\u00fdrnasj\u00fakd\u00f3mi (LNS).<\/p>\n<p>\u00a0<\/p>\n<p>T\u00ed\u00f0ni BNS var fr\u00e1 2% eftir krans\u00e6\u00f0a\u00fer\u00e6\u00f0ingu upp \u00ed 41% \u00ed kj\u00f6lfar a\u00f0ger\u00f0ar \u00e1 \u00f3s\u00e6\u00f0arflysjun. Skuggefnismagn tengdist a\u00f0allega aukinni h\u00e6ttu \u00e1 BNS hj\u00e1 sj\u00faklingum me\u00f0 LNS sem fengu miki\u00f0 magn skuggaefnis. Offita, bl\u00f3\u00f0\u00feurr\u00f0, lengdur t\u00edmi hj\u00e1 hjarta- og lungnav\u00e9l og gj\u00f6f rau\u00f0korna\u00feykknis voru helstu \u00e1h\u00e6ttu\u00fe\u00e6ttir BNS eftir opnar hjartaa\u00f0ger\u00f0ir. BNS tengdist verri lifun sj\u00faklinga \u00ed \u00f6llum ranns\u00f3knunum og aukinni h\u00e6ttu \u00e1 \u00fer\u00f3un \u00e1 langvinnum n\u00fdrnasj\u00fakd\u00f3mi eftir krans\u00e6\u00f0a\u00fer\u00e6\u00f0ingar og krans\u00e6\u00f0ahj\u00e1veitu.<\/p>\n<p>\u00a0<\/p>\n<p>Ranns\u00f3knirnar s\u00fdna a\u00f0 BNS er alvarlegur fylgikvilli eftir krans\u00e6\u00f0a\u00fer\u00e6\u00f0ingar og opnar hjartaa\u00f0ger\u00f0ir sem tengist verri langt\u00edmahorfum sj\u00faklinga. Ni\u00f0urst\u00f6\u00f0urnar undirstrika mikilv\u00e6gi g\u00f3\u00f0rar uppvinnslu og me\u00f0fer\u00f0ar sj\u00faklinga sem f\u00e1 BNS eftir a\u00f0ger\u00f0 og jafnframt \u00fe\u00f6rf \u00e1 eftirfylgd \u00feessara sj\u00faklinga eftir \u00fatskrift.<\/p>\n<p>\u00a0<\/p>\n<p><strong><\/strong><\/p>\n<p><strong>Um doktorsefni\u00f0<\/strong><\/p>\n<p>Da\u00f0i Helgason er f\u00e6ddur \u00ed Reykjav\u00edk \u00e1ri\u00f0 1988. Hann lauk st\u00fadentspr\u00f3fi af N\u00e1tt\u00farufr\u00e6\u00f0ibraut fr\u00e1 Menntask\u00f3lanum \u00ed Reykjav\u00edk \u00e1ri\u00f0 2008. Hann h\u00f3f n\u00e1m \u00ed l\u00e6knisfr\u00e6\u00f0i vi\u00f0 L\u00e6knadeild H\u00e1sk\u00f3la \u00cdslands hausti\u00f0 2009, lauk bakkal\u00e1rgr\u00e1\u00f0u 2012 og emb\u00e6ttispr\u00f3fi vori\u00f0 2015 vi\u00f0 sama sk\u00f3la. A\u00f0 loknu kand\u00eddats\u00e1ri h\u00f3f hann s\u00e9rn\u00e1m \u00ed almennum lyfl\u00e6kningum \u00e1 lyfl\u00e6kningasvi\u00f0i Landsp\u00edtala \u00fear sem hann starfar n\u00fa. Da\u00f0i hefur stunda\u00f0 ranns\u00f3knarvinnu samhli\u00f0a l\u00e6knan\u00e1mi og starfi fr\u00e1 \u00fev\u00ed a\u00f0 hann var \u00e1 \u00feri\u00f0ja \u00e1ri \u00ed l\u00e6knadeild og hefur kynnt ranns\u00f3knir s\u00ednar \u00e1 fj\u00f6lda \u00edslenskra og al\u00fej\u00f3\u00f0legra r\u00e1\u00f0stefna. Da\u00f0i hefur hloti\u00f0 \u00fdmsa styrki, m.a. styrk fyrir unga v\u00edsindamenn Landsp\u00edtala \u00ed tv\u00edgang.<\/p>\n<p>Foreldrar Da\u00f0a eru Helgi Gr\u00edmsson og Sigr\u00fan Sigur\u00f0ard\u00f3ttir. Hann \u00e1 tv\u00f6 b\u00f6rn me\u00f0 samb\u00fdliskonu sinni, Sigurlaugu Soff\u00edu Fri\u00f0\u00fej\u00f3fsd\u00f3ttur, \u00feau Gr\u00edm K\u00e1ra 5 \u00e1ra og Svanhildi Soff\u00edu 10 m\u00e1na\u00f0a.<\/p>\n<\/div><\/div>","protected":false},"featured_media":1138,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2019-06-07T13:00:00+00:00","_phd_date_end":"2019-06-07T15:30:00+00:00","_phd_location":"A\u00f0albygging H\u00e1t\u00ed\u00f0asalur","_phd_admission":"A\u00f0gangur \u00f3keypis","_phd_thesis_title":"Acute Kidney Injury Following Cardiac Surgery and Coronary Angiography - Incidence, Risk Factors and Outcome. 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