{"id":6420,"date":"2026-10-19T09:48:53","date_gmt":"2026-10-19T09:48:53","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-laeknavisindum-maria-sigurdardottir\/"},"modified":"2026-10-19T09:48:53","modified_gmt":"2026-10-19T09:48:53","slug":"doktorsvorn-i-laeknavisindum-maria-sigurdardottir","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-laeknavisindum-maria-sigurdardottir\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed l\u00e6knav\u00edsindum &#8211; Mar\u00eda Sigur\u00f0ard\u00f3ttir"},"content":{"rendered":"<div class=\"field-items\">\n<div class=\"field-item even\" property=\"content:encoded\">\n<p>F\u00f6studaginn 26. september 2025 ver Mar\u00eda Sigur\u00f0ard\u00f3ttir doktorsritger\u00f0 s\u00edna \u00ed l\u00e6knav\u00edsindum vi\u00f0 L\u00e6knadeild H\u00e1sk\u00f3la \u00cdslands. Ritger\u00f0in ber heiti\u00f0: Heilsuefling fyrir li\u00f0skiptaa\u00f0ger\u00f0: \u00c1hrif \u00e1 skur\u00f0s\u00fdkingar og heilsufar. Samvinna sj\u00fakrah\u00fass og heilsug\u00e6slu. Preoperative Optimization in Total Joint Arthroplasty: Infection Risk and Health Effect. Cooperation of Hospital and Primary Health Care.<\/p>\n<p>Andm\u00e6lendur eru dr. Ib Jammer, s\u00e9rfr\u00e6\u00f0ingur vi\u00f0 Haukeland-h\u00e1sk\u00f3lasj\u00fakrah\u00fasi\u00f0 \u00ed Bergen, og dr. \u00deorvaldur Ingvarsson, pr\u00f3fessor vi\u00f0 L\u00e6knadeild.<\/p>\n<p>Umsj\u00f3narkennari var pr\u00f3fessor Sigurbergur K\u00e1rason og me\u00f0lei\u00f0beinandi var pr\u00f3fessor Martin Ingi Sigur\u00f0sson. Auk \u00feeirra s\u00e1tu dr. Yngvi \u00d3lafsson og pr\u00f3fessor Emil L\u00e1rus Sigur\u00f0sson \u00ed doktorsnefnd.<\/p>\n<p>S\u00e6d\u00eds S\u00e6varsd\u00f3ttir, pr\u00f3fessor og deildarforseti L\u00e6knadeildar, stj\u00f3rnar ath\u00f6fninni sem fer fram \u00ed H\u00e1t\u00ed\u00f0asal H\u00e1sk\u00f3la \u00cdslands og hefst kl. 13.00.<\/p>\n<p>\u00c1grip<\/p>\n<p>Li\u00f0skiptaa\u00f0ger\u00f0ir \u00e1 ne\u00f0ri \u00fatlimum vegna slitgigtar b\u00e6ta l\u00edfsg\u00e6\u00f0i sj\u00faklinga verulega, en s\u00fdkingar \u00ed a\u00f0ger\u00f0arsv\u00e6\u00f0inu geta haft alvarlegar aflei\u00f0ingar, auki\u00f0 d\u00e1nart\u00ed\u00f0ni og kostna\u00f0. Til a\u00f0 draga \u00far sl\u00edkri h\u00e6ttu hefur \u00e1hugi aukist \u00e1 heilsueflingu m\u00f3tanlegra \u00e1h\u00e6ttu\u00fe\u00e1tta fyrir a\u00f0ger\u00f0, svo sem of\u00feyngdar, sykurs\u00fdki, bl\u00f3\u00f0skorts, vann\u00e6ringar, reykinga og \u00ferekleysis. Markmi\u00f0 \u00feessa verkefnis var a\u00f0 innlei\u00f0a heilsueflandi ferli til a\u00f0 f\u00e6kka fylgikvillum eftir li\u00f0skiptaa\u00f0ger\u00f0ir og kanna \u00e1hrif \u00e1 almenna heilsu. \u00cd vi\u00f0mi\u00f0unarh\u00f3pi 738 sj\u00faklinga s\u00e1st samband milli of\u00feyngdar, sykurs\u00fdki\/r\u00f6skunar \u00e1 sykurstj\u00f3rnun og grunnra skur\u00f0s\u00e1ras\u00fdkinga. \u00cd ranns\u00f3knarh\u00f3pi 746 sj\u00faklinga j\u00f3kst vitund og vilji til l\u00edfsst\u00edlsbreytinga, me\u00f0 framf\u00f6rum \u00ed \u00feyngd, n\u00e6ringu, sykurs\u00fdki og D-v\u00edtam\u00edn-gildum \u00ed bi\u00f0 eftir a\u00f0ger\u00f0. Eftir a\u00f0ger\u00f0 greindust sj\u00faklingar \u00ed ranns\u00f3knarh\u00f3pnum sjaldnar me\u00f0 grunnar s\u00fdkingar (OR 0,64) og a\u00f0ger\u00f0artengda fylgikvilla (11,3% \u00e1 m\u00f3ti 15,7%). Langt\u00edma\u00e1hrif \u00e1 li\u00f0s\u00fdkingar, almennt heilsufar og d\u00e1nart\u00ed\u00f0ni reyndust hins vegar \u00f3markt\u00e6k. Ni\u00f0urst\u00f6\u00f0urnar benda \u00e1 mikilv\u00e6gi \u00feess a\u00f0 gera frams\u00e6jar ranns\u00f3knir \u00e1 \u00e1rangri heilsueflandi ferla og jafnframt a\u00f0 meta \u00e1hrif utana\u00f0komandi \u00fe\u00e1tta \u00e1 me\u00f0fer\u00f0ar\u00e1rangur.<\/p>\n<p>Abstract<\/p>\n<p>Lower extremity total joint arthroplasty improves quality of life and reduces pain in end-stage osteoarthritis, but surgical site infections can cause severe complications, increased mortality, and costs. To decrease such risk preoperative optimization programs have recently gained interest, targeting modifiable risk factors such as obesity, diabetes, anemia, malnutrition, smoking, and poor fitness. The aim of this project was to implement an optimization pathway for the purpose of decreasing postoperative complications after TJA and study effects on general health. In a control group of 738 patients an association was found between obesity, diabetes\/dysglycemia and superficial SSI. In the intervention group of 746 patients, greater awareness, and willingness to adopt lifestyle changes were observed, accompanied by improvements in weight, nutrition, diabetes control, and vitamin D status. Postoperatively, they had fewer superficial surgical site infections (OR 0.64) and surgical site complications (11.3% vs. 15.7%). However, long-term effects on periprosthetic joint infections, overall health, and mortality were not significant. These findings highlight the need for prospective studies on optimization programs and further evaluation of organizational and practice changes in patient care.<\/p>\n<p>Um doktorsefni<\/p>\n<p>Mar\u00eda Sigur\u00f0ard\u00f3ttir er f\u00e6dd \u00e1ri\u00f0 1954 og uppalin \u00ed Reykjav\u00edk. H\u00fan lauk n\u00e1mi af e\u00f0lisfr\u00e6\u00f0ibraut Menntask\u00f3lans \u00ed Reykjav\u00edk og emb\u00e6ttispr\u00f3fi \u00ed L\u00e6knisfr\u00e6\u00f0i 1982. A\u00f0 loknu kand\u00eddats\u00e1ri h\u00f3f h\u00fan s\u00e9rn\u00e1m \u00ed sv\u00e6finga-og gj\u00f6rg\u00e6slul\u00e6kningum vi\u00f0 Helsingborgs Lasarett og H\u00e1sk\u00f3lasj\u00fakrah\u00fasi\u00f0 \u00ed Lundi \u00ed Sv\u00ed\u00fej\u00f3\u00f0 og lauk n\u00e1mi 1990. Einnig n\u00e1mi \u00ed Perioperative Medicine and Management 2019. \u00c1ri\u00f0 2020 h\u00f3f Mar\u00eda doktorsn\u00e1m vi\u00f0 H\u00e1sk\u00f3la \u00cdslands og hlaut styrki fr\u00e1 V\u00edsindasj\u00f3\u00f0i Landsp\u00edtala h\u00e1sk\u00f3lasj\u00fakrah\u00fass og Sj\u00f3\u00f0i Sigr\u00ed\u00f0ar L\u00e1rusd\u00f3ttur. Foreldrar Mar\u00edu eru Vilhelm\u00edna H\u00f3lmfr\u00ed\u00f0ur Vilhj\u00e1lmsd\u00f3ttir og Sigur\u00f0ur Finnbjarnarson, sem b\u00e6\u00f0i eru l\u00e1tin. Eiginma\u00f0ur Mar\u00edu er R\u00edkar\u00f0ur Sigf\u00fasson, s\u00e9rfr\u00e6\u00f0ingur \u00ed b\u00e6klunarskur\u00f0l\u00e6kningum, og eiga \u00feau tvo syni, R\u00edkar\u00f0, eiginkona Fr\u00ed\u00f0ur Gu\u00f0mundsd\u00f3ttir og Fannar, eiginkona Hildur Magn\u00fasd\u00f3ttir, og barnab\u00f6rnin eru sex.<\/p>\n<\/div><\/div>","protected":false},"featured_media":5807,"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":"2025-09-26T13:00:00+00:00","_phd_date_end":"2025-09-26T16:00:00+00:00","_phd_location":"A\u00f0albygging H\u00e1t\u00ed\u00f0asalur","_phd_admission":"A\u00f0gangur \u00f3keypis","_phd_thesis_title":"Heilsuefling fyrir li\u00f0skiptaa\u00f0ger\u00f0: \u00c1hrif \u00e1 skur\u00f0s\u00fdkingar og heilsufar. 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