Katrine Carlsen

Dr. Katrine Carlsen


Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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2 February 2017 in Journal of Crohn's and Colitis
Verified
Journal Article
Open access
PDF file
Patrick F. van RheenenPatrick F. van Rheenen
Patrick F. van Rheenen
MAMarina Aloi
Marina Aloi
IBIrit Avni Biron
Irit Avni Biron
KCKatrine Carlsen
Katrine Carlsen
RCRachel Margaret Cooney
Rachel Margaret Cooney
MHMarcus Harbord
Marcus Harbord
This European Crohn’s and Colitis Organisation [ECCO] topical review focuses on the transition of adolescents with inflammatory bowel disease [IBD] from child-centred to adult-oriented care. The aim was to provide evidence-supported, expert consensus for health professionals taking part in the transition. An online survey determined the areas of importance for health professionals involved in the transition of adolescents with IBD. Thereafter an expert panel of nine paediatric and five adult gastroenterologists was formed to identify the critical elements of the transition programme, and to prepare core messages defined as ‘current practice points’. There is limited literature about transition, therefore this review is mainly based on expert opinion and consensus, rather than on specific evidence. A total of 21 practice points were generated before the first [online] voting round. Practice points that reached >80% agreement were accepted, while those that did not reach 80% agreement were refined during a consensus meeting and subjected to voting. Ultimately, 14 practice points were retained by this review. We present a consensus-based framework for transitional care in IBD that provides a guidance for clinical practice.

1 March 2017 in Inflammatory Bowel Diseases
Verified
Journal Article
Closed access
PDF file
KCKatrine Carlsen
Katrine Carlsen
NHNichola Haddad
Nichola Haddad
JGJulia Gordon
Julia Gordon
BPBecky Lin Phan
Becky Lin Phan
NPNanci Pittman
Nanci Pittman
LKLaurie Keefer
Laurie Keefer
Adolescence is a vulnerable period for those afflicted with inflammatory bowel disease (IBD). There is limited knowledge of factors influencing transition readiness in this population. We sought to determine whether self-efficacy and resilience would be informative predictors of transition readiness independent of age. Patients with IBD aged 16 to 23 years cared for in a pediatric setting were prospectively enrolled. On entry, patients filled out the Transition Readiness Assessment Questionnaire (TRAQ); IBD Self-Efficacy Scale—Adolescent (IBD-SES-A); and the Connor–Davidson Resilience Scale. Demographic data and disease-specific information were collected from the medical record and by the provider. General linear modeling and autocorrelation were performed to investigate predictors of transition readiness. Eighty-seven patients (62 Crohn's disease and 25 ulcerative colitis) were included, with a median age of 19 years (interquartile range 1–3: 17–20; min–max: 16–23). After controlling for age, the IBD-SES-A predicted TRAQ [F(1) = 11.69, R2 = 0.16, P = 0.001], accounting for 16% of the variance. The Connor–Davidson Resilience Scale also independently predicted TRAQ score [F(1) = 6.45, R2 = 0.09, P = 0.01], accounting for 9% of the variance. The IBD-SES-A and Connor–Davidson Resilience Scale were significantly auto correlated (r = 0.044, P = 0.001); in the final predictive model, only IBD-SES-A was predictive of TRAQ [F(1) = 4.01, R2 = 0.12, P = 0.004]. None of the patients' demographic, disease, or socioeconomic parameters informed transition readiness once self-efficacy and resilience were considered. This is the first study to identify a reliable predictor of transition readiness scores in adolescents with IBD that does not seem to be influenced by age.

1 February 2016 in Inflammatory Bowel Diseases
Verified
Journal Article
Closed access
KVKristoffer Kofod Vinding
Kristoffer Kofod Vinding
HEHenriette Elsberg
Henriette Elsberg
TTTine Thorkilgaard
Tine Thorkilgaard
EBErika Belard
Erika Belard
NPNatalia Pedersen
Natalia Pedersen
PMPia Munkholm
Pia Munkholm
Fecal calprotectin is a reliable noninvasive marker for intestinal inflammation usable for monitoring patients with inflammatory bowel disease. Tests are usually performed by enzyme-linked immunosorbent assay (ELISA), which is time consuming and delays results, thus limiting its use in clinical practice. Our aim was to evaluate CalproSmart, a new rapid test for fecal calprotectin performed by patients themselves at home, and compare it to gold standard ELISA. A total of 221 patients with inflammatory bowel disease (115 ulcerative colitis and 106 Crohn's disease) were included. The CalproSmart test involves extraction of feces, application to the lateral flow device, and taking a picture with a smartphone after 10 minutes of incubation. Results appear on the screen within seconds. Patients were instructed at inclusion and had a video guide of the procedure as support. When using CalproSmart at home, patients also sent in 2 fecal samples to be analyzed by ELISA. Totally, 894 fecal calprotectin results were obtained by ELISA, and 632 of them from CalproSmart. The correlation coefficient was 0.685, higher for academics than nonacademics (0.768 versus 0.637; P = 0.0037). The intra-assay and interassay coefficients of variation of the CalproSmart test were 4.42% and 12.49%, respectively. The sensitivity, specificity, positive predictive value, and negative predictive value were 82%, 85%, 47%, and 97%, respectively, with an optimal cutoff at 150 μg/g. The CalproSmart test performed by patients with inflammatory bowel disease for fast assessment of gut inflammation seems a reliable alternative to ELISA and presents a new way of monitoring patients by eHealth.

1 September 2017 in Inflammatory Bowel Diseases
Verified
Journal Article
Closed access
PDF file
KCKatrine Carlsen
Katrine Carlsen
GHGunnar Houen
Gunnar Houen
CJChristian Jakobsen
Christian Jakobsen
TKThomas Kallemose
Thomas Kallemose
APAnders Paerregaard
Anders Paerregaard
VWVibeke Wewer
Vibeke Wewer
To individualize timing of infliximab (IFX) treatment in children and adolescents with inflammatory bowel disease (IBD) using a patient-managed eHealth program. Patients with IBD, 10 to 17 years old, treated with IFX were prospectively included. Starting 4 weeks after their last infusion, patients reported a weekly symptom score and provided a stool sample for fecal calprotectin analysis. Based on symptom scores and fecal calprotectin results, the eHealth program calculated a total inflammation burden score that determined the timing of the next IFX infusion (4–12 wk after the previous infusion). Quality of Life was scored by IMPACT III. A control group was included to compare trough levels of IFX antibodies and concentrations and treatment intervals. Patients and their parents evaluated the eHealth program. There were 29 patients with IBD in the eHealth group and 21 patients with IBD in the control group. During the control period, 94 infusions were provided in the eHealth group (mean interval 9.5 wk; SD 2.3) versus 105 infusions in the control group (mean interval 6.9 wk; SD 1.4). Treatment intervals were longer in the eHealth group (P < 0.001). Quality of Life did not change during the study. Appearance of IFX antibodies did not differ between the 2 groups. Eighty percent of patients reported increased disease control and 63% (86% of parents) reported an improved knowledge of the disease. Self-managed, eHealth-individualized timing of IFX treatments, with treatment intervals of 4 to 12 weeks, was accompanied by no significant development of IFX antibodies. Patients reported better control and improved knowledge of their IBD.

28 February 2017 in Journal of Gastroenterology and Hepatology
Verified
Journal Article
Open access
PDF file
DADorit Vedel Ankersen
Dorit Vedel Ankersen
KCKatrine Carlsen
Katrine Carlsen
DMDorte Marker
Dorte Marker
PMPia Munkholm
Pia Munkholm
JBJohan Burisch
Johan Burisch
Health‐care systems around the world are facing increasing costs. Non‐adherent, chronically ill patients are one such expense incurred by health‐care providers. Web‐based home‐monitoring of patients—or eHealth—has been shown to increase adherence to medical therapy, facilitate contact between patients and health‐care professionals, and reduce time to remission for patients with inflammatory bowel disease (IBD). Web‐based treatment is a supportive tool for the health‐care provider in an out‐patient clinic. eHealth web‐programs, such as the Constant Care application, visualize disease activity in a traffic light system and empower patients to screen for disease activity, enabling them to respond appropriately to their symptoms. The eHealth screening procedure for monitoring both pediatric and adult IBD patients is based on a self‐obtained symptom score, together with a fecal biomarker for inflammation (fecal calprotectin) that the patients can measure independently using their smart phone, providing both patient and physician with an immediate disease status that they can react to instantaneously. Likewise, web applications for IBD patients, web applications for irritable bowel syndrome (IBS) patients and also IBD patients with co‐existing IBS, have proven valuable for monitoring and treating IBS symptoms with a diet low in fermentable oligo‐, di‐, monosaccharides and polyols (low‐FODMAP diet). With careful disease monitoring via the web application and increased patient adherence, eHealth might be capable of improving the natural disease course of IBD and IBS.

31 May 2017 in Journal of Crohn's and Colitis
Verified
Journal Article
Open access
PDF file
JBJohan Burisch
Johan Burisch
ZVZsuzsanna Vegh
Zsuzsanna Vegh
KKKonstantinnos H Katsanos
Konstantinnos H Katsanos
DCDimitrios K Christodoulou
Dimitrios K Christodoulou
DLDaniela Cornelia Lazar
Daniela Cornelia Lazar
JDJens Frederik Dahlerup
Jens Frederik Dahlerup
Anaemia is an important complication of inflammatory bowel disease [IBD]. The aim of this study was to determine the prevalence of anaemia and the practice of anaemia screening during the first year following diagnosis, in a European prospective population-based inception cohort. Newly diagnosed IBD patients were included and followed prospectively for 1 year in 29 European and one Australian centre. Clinical data including demographics, medical therapy, surgery and blood samples were collected. Anaemia was defined according to the World Health Organization criteria. A total of 1871 patients (Crohn’s disease [CD]: 686, 88%; ulcerative colitis [UC]: 1,021, 87%; IBD unclassified [IBDU] 164. 81%) were included in the study. The prevalence of anaemia was higher in CD than in UC patients and, overall, 49% of CD and 39% of UC patients experienced at least one instance of anaemia during the first 12 months after diagnosis. UC patients with more extensive disease and those from Eastern European countries, and CD patients with penetrating disease or colonic disease location, had higher risks of anaemia. CD and UC patients in need of none or only mild anti-inflammatory treatment had a lower risk of anaemia. In a significant proportion of patients, anaemia was not assessed until several months after diagnosis, and in almost half of all cases of anaemia a thorough work-up was not performed. Overall, 42% of patients had at least one instance of anaemia during the first year following diagnosis. Most patients were assessed for anaemia regularly; however, a full anaemia work-up was frequently neglected in this community setting.