Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Collste Olov) "

Sökning: WFRF:(Collste Olov)

  • Resultat 1-6 av 6
Sortera/gruppera träfflistan
  • Collste, Olov, et al. (författare)
  • No Myocardial Vulnerability to Mental Stress in Takotsubo Stress Cardiomyopathy
  • 2014
  • Ingår i: PLoS ONE. - 1932-6203 .- 1932-6203. ; 9:4, s. Art. no. e93697-
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: Due to the frequent use of coronary angiography the awareness of Takotsubo stress cardiomyopathy (TSC) has increased although the exact pathophysiology of TSC is still largely unknown. Our objective was to investigate the effects of mental stress on myocardial function, heart rate variability (HRV) and salivary cortisol (SC) in TSC patients. Design: This study is a case-control study and a sub-study of the Stockholm Myocardial Infarction with Normal Coronaries (SMINC) study. Setting: Mental stress test was performed more than 6 months after the acute event in TSC patients and age- and sex-matched controls. Standard echocardiography and tissue Doppler imaging (TDI) - derived time-phases of cardiac cycle were recorded to calculate myocardial performance index (MPI) to assess ventricular function before and during mental stress. Holter-ECG recording was made to estimate HRV before, during and after mental stress. SC was measured at baseline, before and 20 minutes after mental stress. Subjects: Twenty-two TSC patients and 22 sex-and age- matched controls were recruited from the SMINC-study and investigated with a mental stress test. All TSC patients had a previous normal cardiovascular magnetic resonance investigation. Results: There were no significant differences at rest or during mental stress for left and right ventricular MPI or other standard diastolic variables between TSC patients and controls. HRV did not differ between TSC patients and controls. There was a trend towards less increase in SC after mental stress in TSC patients compared to controls. Conclusion: Mental stress did not induce a significant difference in myocardial function or HRV response between TSC and controls. Moreover, no significant difference could be seen in SC response at baseline, during or after mental stress. This study indicates that myocardial vulnerability to mental stress does not persist in TSC patients.
  • Daniel, Maria, et al. (författare)
  • Effect of Myocardial Infarction With Nonobstructive Coronary Arteries on Physical Capacity and Quality-of-Life
  • 2017
  • Ingår i: American Journal of Cardiology. - 0002-9149 .- 1879-1913. ; 120:3, s. 341-346
  • Tidskriftsartikel (refereegranskat)abstract
    • Patients with myocardial infarction with nonobstructive coronary arteries (MINOCA), including Takotsubo syndrome (TS), are considered to have a better survival compared with those with coronary heart disease (CHD). Studies of patients with MINOCA measuring physical and mental function including matched control groups are lacking. The aim of this study was to determine the physical capacity and quality of life in patients with MINOCA. One-hundred patients with MINOCA along with TS (25%) were investigated from 2007 to 2011. A bicycle exercise stress test was performed 6 weeks after hospitalization and QoL was investigated by the Short Form Survey 36 at 3 months' follow-up. Both a healthy and a CHD group that were age and gender matched were used as controls. The MINOCA group had a lower physical capacity (139 ± 42 W) compared with the healthy control group (167 ± 53 W, p <0.001) but better than the CHD control group (124 ± 39 W, p = 0.023). Patients with MINOCA had lower physical and mental component summary scores compared with the healthy controls (p <0.001) and lower mental component summary (p = 0.012), mental health (p = 0.016), and vitality (p = 0.008) scores compared with the CHD controls. In conclusion, the findings of this first study on exercise capacity and QoL in patients with MINOCA showed both physical and mental distress from 6 weeks to 3 months after the acute event similar to CHD controls and in some perspectives even lower scores especially in the mental component of QoL.
  • Hjort, Marcus, et al. (författare)
  • Increased Inflammatory Activity in Patients 3 Months after Myocardial Infarction with Nonobstructive Coronary Arteries
  • 2019
  • Ingår i: Clinical Chemistry. - : AMER ASSOC CLINICAL CHEMISTRY. - 0009-9147 .- 1530-8561. ; 65:8, s. 1023-1030
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Around 5%-10% of patients with myocardial infarction (MI) present with nonobstructive coronary arteries (MINOCA). We aimed to assess pathophysiological mechanisms in MINOCA by extensively evaluating cardiovascular biomarkers in the stable phase after an event, comparing MINOCA patients with cardiovascular healthy controls and MI patients with obstructive coronary artery disease (MI-CAD).METHODS: Ninety-one biomarkers were measured with a proximity extension assay 3 months after MI in 97 MINOCA patients, 97 age-and sex-matched MI-CAD patients, and 98 controls. Lasso analyses (penalized logistic regression models) and adjusted multiple linear regression models were used for statistical analyses.RESULTS: In the Lasso analysis (MINOCA vs MI-CAD), 8 biomarkers provided discriminatory value: P-selectin glycoprotein ligand 1, C-X-C motif chemokine 1, TNF-related activation-induced cytokine, and pappalysin-1 (PAPPA) with increasing probabilities of MINOCA, and tissue-type plasminogen activator, B-type natriuretic peptide, myeloperoxidase, and interleukin-1 receptor antagonist protein with increasing probabilities of MI-CAD. Comparing MINOCA vs controls, 7 biomarkers provided discriminatory value: N-terminal pro-B-type natriuretic peptide, renin, NF-kappa-B essential modulator, PAPPA, interleukin-6, and soluble urokinase plasminogen activator surface receptor with increasing probabilities of MINOCA, and agouti-related protein with increasing probabilities of controls. Adjusted multiple linear regression analyses showed that group affiliation was associated with the concentrations of 7 of the 8 biomarkers in the comparison MINOCA vs MI-CAD and 5 of the 7 biomarkers in MINOCA vs controls.CONCLUSIONS: Three months after the MI, the biomarker concentrations indicated greater inflammatory activity in MINOCA patients than in both MI-CAD patients and healthy controls, and a varying degree of myocardial dysfunction among the 3 cohorts. 
  • Lagerqvist, Bo, et al. (författare)
  • Outcomes 1 year after thrombus aspiration for myocardial infarction.
  • 2014
  • Ingår i: New England Journal of Medicine. - : Massachusetts Medical Society. - 0028-4793 .- 1533-4406. ; 371:12, s. 1111-1120
  • Tidskriftsartikel (refereegranskat)abstract
    • Routine intracoronary thrombus aspiration before primary percutaneous coronary intervention (PCI) in patients with ST-segment elevation myocardial infarction (STEMI) has not been proved to reduce short-term mortality. We evaluated clinical outcomes at 1 year after thrombus aspiration.
  • Nero, Daniella, et al. (författare)
  • Personality Traits in Patients with Myocardial Infarction with Nonobstructive Coronary Arteries.
  • 2019
  • Ingår i: The American journal of medicine. - 1555-7162 .- 0002-9343. ; 132:3, s. 374-381
  • Tidskriftsartikel (refereegranskat)abstract
    • The purpose of this study was to describe type A behavior pattern and trait anger in patients with myocardial infarction with nonobstructive coronary arteries (MINOCA) and compare them with patients with coronary heart disease and healthy controls. Type A behavior pattern and anger have been linked to coronary heart disease in previous studies. This is the first study to assess type A behavior pattern and trait anger in MINOCA patients.One hundred MINOCA patients, consecutively recruited during 2007-2011 at 5 coronary care units in Stockholm, were matched for sex and age to 100 coronary heart disease patients and 100 healthy controls. All participants completed the Bortner Rating Scale to quantify type A behavior pattern and the Spielberger Trait Anger Scale to quantify anger 3 months after the acute event.MINOCA patients' Bortner Rating Scale score was 70.9 ± 10.8 (mean ± SD) and Spielberger Trait Anger Scale score was 14 (12-17) (median; interquartile range). Coronary heart disease patients' Bortner Rating Scale score was 70.5 ± 10.2 and Spielberger Trait Anger Scale score was 14 (12-17). Healthy controls' Bortner Rating Scale score was 71.9 ± 9.1 and Spielberger Trait Anger Scale score was 13 (11-16).We found no significant differences in Bortner Rating Scale score and Spielberger Trait Anger Scale score among MINOCA, coronary heart disease patients, and healthy controls, regardless of whether total scores, subscales, or cutoffs were used to classify type A behavior pattern and trait anger. However, we cannot exclude the existence of an occasional episode of anger or mental stress in relation to the coronary event. This is the first study to assess type A behavior pattern and trait anger in patients with MINOCA, and future studies need to confirm the current findings before any firm conclusions can be made.
  • Collste, Olov (författare)
  • Takotsubo stress cardiomyopathy and different types of stress
  • 2015
  • Doktorsavhandling (övrigt vetenskapligt)abstract
    • Myocardial infarction with normal coronary angiography (MINCA) is an important subgroup of myocardial infarction for which the prevalence, underlying pathophysiology, prognosis and optimal management are still largely unknown. Interest in and awareness of MINCA has increased in recent years due to the frequent use of coronary angiography, the description of Takotsubo stress cardiomyopathy (TSC) and new sensitive troponin assays. The purpose of this thesis was to investigate the prevalence and clinical characteristics of MINCA using cardiovascular magnetic resonance (CMR) and particularly to investigate the effect of stress on TSC using Doppler tissue imaging (DTI), heart rate variability (HRV), salivary cortisol (SC) and non-invasive coronary flow reserve (CFR). In Study I, 176 patients with MINCA were screened at five coronary care units in the Stockholm Metropolitan Area. 152 of them were investigated using CMR which showed 67% of the patients as being normal, 19% having signs of myocardial necrosis and 7% the diagnosis was myocarditis in of the patients. The remaining patients were either diagnosed with hypertrophic cardiomyopathy or were undecided. Twenty-two percent of all MINCA with a normal CMR fulfilled the Mayo Clinic criteria for TSC. In Study II, we tested the hypothesis that compared to sex- and age-matched controls TSC patients have an increased vulnerability to stress even after the acute event. Using dobutamine stress echocardiography (DSE) and DTI we investigated the TSC patients approximately 20 months (619 ± 297 days) after the acute event. At rest left ventricular myocardial performance index (LV-MPI) was significantly higher for TSC patients (p=0.01). During stress, however, there were no significant differences between the groups. Study III was in many ways similar to Study II except that mental stress was used instead of dobutamine stress. The study was performed 28 months after the acute event. In addition to DTI, HRV and SC were also studied. During mental stress there were no significant differences between TSC patients and sex- and age-matched controls for DTI, HRV and SC. There was a trend towards less increase in SC after stress in TSC patients compared to controls. A self-estimated acute stress scale (Likert-type scale from 0–6) was 2.8 and 2.6 during mental stress for TSC patients and controls, respectively. During the acute event TSC patients retrospectively estimated their acute stress level at 4.4. In Study IV, dobutamine stress was used to investigate the effect of stress on non-invasive CFR. At low-dose dobutamine, CFR was significantly lower in TSC patients compared to controls (p=0.017). There were no differences in CFR at high-dose dobutamine between the groups. Conclusion: MINCA is more common than previously thought and is associated with a normal CMR. TSC constitutes a substantial part of MINCA. Studies II and III point to a slow recovery for TSC patients measured by DTI but no sign of vulnerability was revealed by dobutamine or mental stress measured by DTI, HRV or SC. We could not confirm that the catecholamine dobutamine induced microvascular dysfunction in TSC patients. However, we found a small but significant difference in CFR at low-dose dobutamine, which implies that the role of microvascular function in TSC needs to be further explored.
Skapa referenser, mejla, bekava och länka
  • Resultat 1-6 av 6
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy