| 1. |
|
|
| 2. |
|
|
| 3. |
|
|
| 4. |
- Eldhagen, P., et al.
(författare)
-
Transthyretin amyloid deposits in lumbar spinal stenosis and assessment of signs of systemic amyloidosis
- 2021
-
Ingår i: Journal of Internal Medicine. - : John Wiley & Sons. - 0954-6820 .- 1365-2796. ; 289:6, s. 895-905
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Wild‐type transthyretin (ATTRwt) amyloidosis is the most common systemic amyloidosis in Western countries and manifests mainly as progressive restrictive cardiomyopathy.Objective: To study the prevalence of ATTR deposits in ligament tissue in patients undergoing surgery for lumbar spinal stenosis and to assess whether these deposits are associated with cardiac amyloidosis.Materials and methods: A total of 250 patients, aged 50–89 (57% women), none with known cardiovascular disease, were included. Ligaments were investigated microscopically for amyloid. ATTR type was determined by immunohistochemistry and fibril type by Western blot. The amount of amyloid was graded 0‐4. All patients with grade 3‐4 ATTR deposits were offered cardiac investigation including ECG, cardiac ultrasound, plasma NT‐proBNP and cardiac magnetic resonance (CMR), including modern tissue characterization.Results: Amyloid was identified in 221 of the samples (88.4%). ATTR appeared in 93 samples (37%) of whom 42 (17 women and 25 men) were graded 3‐4; all had fibril type A (mixture of full‐length TTR and fragmented TTR). Twenty‐nine of 42 patients with grade 3‐4 ATTR deposits accepted cardiovascular investigations; none of them had definite signs of cardiac amyloidosis, but five men had a history of carpal tunnel syndrome.Conclusions: The prevalence of ATTR deposits in ligamentum flavum in patients with lumbar spinal stenosis was high but not associated with manifest ATTR cardiac amyloidosis. However, the findings of fibril type A, the prevalence of previous carpal tunnel syndrome and ATTR amyloid in surrounding adipose and vascular tissue indicate that amyloid deposits in ligamentum flavum may be an early manifestation of systemic ATTR disease.
|
|
| 5. |
- Lundin, M., et al.
(författare)
-
Diffusely Increased Myocardial Extracellular Volume with or without Focal Late Gadolinium Enhancement: Prevalence and Associations with Left Ventricular Size and Function
- 2022
-
Ingår i: Journal of Thoracic Imaging. - 0883-5993 .- 1536-0237. ; 37:1, s. 17-25
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: Myocardial extracellular volume fraction (ECV) using cardiovascular magnetic resonance (CMR) can identify diffuse lesions not detected by late gadolinium enhancement (LGE). We aimed to determine the prevalence of increased ECV and its relation to other CMR findings. Materials and Methods: Consecutive patients (n=609, age median [interquartile range] 53 [39 to 66] y, 62% male) underwent CMR at 1.5 T. Focal lesions on LGE images were noted. ECV in regions without focal LGE findings defined diffuse changes. Pronounced increases in left ventricular (LV) end-diastolic volume index and LV mass index, and pronounced decreases in LV ejection fraction were defined as >3 SD from the sex-specific mean in healthy volunteers. Results: Of 609 patients without amyloidosis or hypertrophic cardiomyopathy, 8% had diffusely increased ECV and 5% of all patients had diffusely increased ECV without any focal LGE findings. Multivariate analysis showed that a pronounced increase in the LV end-diastolic volume index was associated with increased ECV (P=0.001), but not LGE (P=0.52). A pronounced decrease in LV ejection fraction was associated with the presence of LGE (P<0.001), but not with increased ECV (P=0.41). Conclusions: Eight percent of patients in this clinical cohort with known or suspected heart disease had diffusely increased ECV and 60% of these lacked focal LGE findings. LV size is independently associated with increased ECV, whereas systolic dysfunction is independently associated with LGE. This image-based clinical study demonstrates that ECV-CMR provides additional information negligibly related to the results of LGE imaging, and thereby increases the diagnostic yield of CMR. © 2020 Lippincott Williams and Wilkins. All rights reserved.
|
|
| 6. |
|
|
| 7. |
- Verouhis, D, et al.
(författare)
-
Reply to comment by Elbadawi et al
- 2017
-
Ingår i: American heart journal. - : Elsevier BV. - 1097-6744 .- 0002-8703. ; 187, s. e7-e8
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
|
|
| 8. |
- Verouhis, D, et al.
(författare)
-
Reply to letter to the editor by Lou et al
- 2017
-
Ingår i: American heart journal. - : Elsevier BV. - 1097-6744 .- 0002-8703. ; 185, s. e2-
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
|
|
| 9. |
- Almstrand, Robert, et al.
(författare)
-
Dynamics of specific ammonia-oxidizing bacterial populations and nitrification in response to controlled shifts of ammonium concentrations in wastewater
- 2013
-
Ingår i: Applied Microbiology and Biotechnology. - : Springer Verlag (Germany). - 0175-7598 .- 1432-0614. ; 97:5, s. 2183-2191
-
Tidskriftsartikel (refereegranskat)abstract
- Ammonia-oxidizing bacteria (AOB) are essential for the nitrification process in wastewater treatment. To retain these slow-growing bacteria in wastewater treatment plants (WWTPs), they are often grown as biofilms, e.g., on nitrifying trickling filters (NTFs) or on carriers in moving bed biofilm reactors (MBBRs). On NTFs, a decreasing ammonium gradient is formed because of the AOB activity, resulting in low ammonium concentrations at the bottom and reduced biomass with depth. To optimize the NTF process, different ammonium feed strategies may be designed. This, however, requires knowledge about AOB population dynamics. Using fluorescence in situ hybridization (FISH) and confocal laser scanning microscopy, we followed biomass changes during 6 months, of three AOB populations on biofilm carriers. These were immersed in aerated MBBR tanks in a pilot plant receiving full-scale wastewater. Tanks were arranged in series, forming a wastewater ammonium gradient mimicking an NTF ammonium gradient. The biomass of one of the dominating Nitrosomonas oligotropha-like populations increased after an ammonium upshift, reaching levels comparable to the high ammonium control in 28 days, whereas a Nitrosomonas europaea-like population increased relatively slowly. The MBBR results, together with competition studies in NTF systems fed with wastewater under controlled ammonium regimes, suggest a differentiation between the two N. oligotropha populations, which may be important for WWTP nitrification.
|
|
| 10. |
|
|
| 11. |
|
|
| 12. |
|
|
| 13. |
|
|
| 14. |
- Rinnström, Daniel, 1982-, et al.
(författare)
-
High prevalence of ascending aortic dilation in adults with repaired coarctation of the aorta
- 2021
-
Ingår i: Cardiology in the Young. - Cambridge, United Kingdom : Cambridge University Press. - 1047-9511 .- 1467-1107. ; 31:6, s. 992-997
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Ascending aortic dilation is a feared complication in adults with repaired coarctation of the aorta, as the condition is associated with life-threatening complications such as aortic dissection and rupture. However, the data are currently limited regarding factors associated with ascending aortic dilation in these patients. Methods and results: From the national register of congenital heart disease, 165 adult patients (≥ 18 years old) with repaired coarctation of the aorta, and echocardiographic data on aortic dimensions, were identified (61.2% male, mean age 35.8 ± 14.5 years). Aortic dilation (aortic diameters > 2 SD above reference mean) was found in 55 (33.3%) of the 165 included patients, and was associated with manifest aortic valve disease in univariable logistic regression analysis (OR 2.44, 95% CI [1.23, 4.83]). Conclusions: Aortic dilation is common post-repair of coarctation of the aorta, and is associated with manifest aortic valve disease and thus indirectly with the presence of a bicuspid aortic valve. However, no association was found between aortic dilation and age or blood pressure. © 2021 The Author(s),. Published by Cambridge University Press.
|
|
| 15. |
- Rinnström, Daniel, 1982-, et al.
(författare)
-
Hypertension in adults with repaired coarctation of the aorta
- 2016
-
Ingår i: American Heart Journal. - : Elsevier BV. - 0002-8703 .- 1097-6744. ; 181, s. 10-15
-
Tidskriftsartikel (refereegranskat)abstract
- Aims In adults with coarctation of the aorta (CoA), hypertension (HTN) is a common long-term complication. We investigated the prevalence of HTN and analyzed factors associated with HTN. Methods and results In the national register for congenital heart disease, 653 adults with repaired CoA were identified (mean age 36.9±14.4years); 344 (52.7%) of them had HTN, defined as either an existing diagnosis or blood pressure (BP) ≥140/90mmHg at the clinical visit. In a multivariable model, age (years) (odds ratio [OR] 1.07, CI 1.05-1.10), sex (male) (OR 3.35, CI 1.98-5.68), and body mass index (kilograms per square meter) (OR 1.09, CI 1.03-1.16) were independently associated with having HTN, and so was systolic arm-leg BP gradient where an association with HTN was found at the ranges of (10, 20] and >20mmHg, in comparison to the interval ≤10mmHg (OR 3.58, CI 1.70-7.55, and OR 11.38, CI 4.03-32.11). This model remained valid when all patients who had increased BP (≥140/90mmHg) without having been diagnosed with HTN were excluded from the analyses. Conclusions Hypertension is common in patients with previously repaired CoA and is associated with increasing age, male sex, and elevated body mass index. There is also an association with arm-leg BP gradient, starting at relatively low levels that are usually not considered for intervention. © 2016
|
|
| 16. |
- Sandberg, Sofia, 1976, et al.
(författare)
-
Low anterior resection syndrome in a Scandinavian population of patients with rectal cancer: a longitudinal follow-up within the QoLiRECT study
- 2020
-
Ingår i: Colorectal Disease. - : Wiley. - 1462-8910 .- 1463-1318. ; 22:10, s. 1367-1378
-
Tidskriftsartikel (refereegranskat)abstract
- Aim: Low anterior resection syndrome (LARS) is common after low anterior resection. Our aim was to evaluate the prevalence and ‘bother’ (subjective, symptom-associated distress) of major LARS after 1 and 2years, identify possible risk factors and relate the bowel function to a reference population. Method: The QoLiRECT (Quality of Life in RECTal cancer) study is a Scandinavian prospective multicentre study including 1248 patients with rectal cancer, of whom 552 had an anterior resection. Patient questionnaires were distributed at diagnosis and after 1, 2 and 5years. Data from the baseline and at 1- and 2-year follow-up were included in this study. Results: The LARS score was calculated for 309 patients at 1year and 334 patients at 2years. Prevalence was assessed by a generalized linear mixed effects model. Major LARS was found in 63% at 1year and 56% at 2years. Bother was evident in 55% at 1year, decreasing to 46% at 2years. Major LARS was most common among younger women (69%). Among younger patients, only marginal improvement was seen over time (63–59%), for older patients there was more improvement (62–52%). In the reference population, the highest prevalence of major LARS-like symptoms was noted in older women (12%). Preoperative radiotherapy, defunctioning stoma and tumour height were found to be associated with major LARS. Conclusion: Major LARS is common and possibly persistent over time. Younger patients, especially women, are more affected, and perhaps these patients should be prioritized for early stoma closure to improve the chance of a more normal bowel function.
|
|
| 17. |
- Sörensson, P., et al.
(författare)
-
The role of modern cardiovascular imaging in (suspected) coronary artery disease in competitive athletes
- 2022
-
Ingår i: Trends in Cardiovascular Medicine. - : Elsevier BV. - 1050-1738 .- 1873-2615. ; 32, s. 431-437
-
Forskningsöversikt (refereegranskat)abstract
- This overview addresses different non-invasive imaging methods in diagnosing CAD before clearing the athlete for participation in sports activity. Keep in mind the risks and benefits of exercising for the competitive athlete and to use the SCORE-information as a first evaluation tool. It is essential to gather relevant information and to complement anatomical evaluations with functional evaluations. Exercise testing also has an added value in athletes as it will inform both the physician and the athlete on the aerobic fitness of the individual, a key factor in risk assessment.
|
|
