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1.
  • Milovanovic, Micha, 1966-, et al. (författare)
  • Letter: Atrial fibrillation and platelet reactivity : in International Journal of Cardiology(ISSN 0167-5273)(EISSN 1874-1754)
  • 2010
  • Ingår i: International Journal of Cardiology. - Ireland : Elsevier. - 0167-5273 .- 1874-1754. ; 145:2, s. 357-358
  • Tidskriftsartikel (övrigt vetenskapligt)abstract
    • BACKGROUND: The impact of atrial fibrillation (AF) upon platelet reactivity has not been investigated. METHODS: Subjects were 33 individuals with AF who consented to elective electrical cardioversion (ECV) immediately before ECV determination of surface-bound fibrinogen after stimulation i.e. platelet reactivity was carried out. A flow cytometer was employed. ADP (1.7 and 8.5mumol/L) and a thrombin receptor activating peptide (54 and 74mumol/L) were used as agonists. The analyses were repeated after 26+/-8(SD) months. RESULTS: Compared to day 1 subjects with AF (n=18) had a trend towards lower platelet reactivity at study end. It reached significance when using 1.7mumol/L ADP. In contrast, after 26+/-8(SD) months sinus rhythm (SR) (n=15) was associated with significant lower reactivity with all agonists. CONCLUSION: After 26+/-8(SD) months patients returning with AF had higher platelet reactivity than those who remained with SR.
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2.
  • Bukachi, Frederick, et al. (författare)
  • Clinical outcome of coronary angioplasty in patients with ischaemic cardiomyopathy
  • 2003
  • Ingår i: International Journal of Cardiology. - 0167-5273 .- 1874-1754. ; 88:2-3, s. 167-174
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To assess the clinical outcome of successful percutaneous transluminal coronary angioplasty (PTCA) in patients with poor ventricular function. METHODS: Analysis of angiographic, echocardiographic and clinical records of patients with severe LV dysfunction who underwent PTCA from January 1, 1995 to December 31, 1997 was undertaken. Forty-one patients aged 63+/-10 years, 36 men, all with significant coronary artery disease and impaired LV function (fractional shortening, FS
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3.
  • Dellborg, M, et al. (författare)
  • Electrocardiographic assessment of infarct size : Comparison between QRS scoring of 12-lead electrocardiography and dynamic vectorcardiography
  • 1993
  • Ingår i: International Journal of Cardiology. - : Elsevier Ireland Ltd. - 0167-5273 .- 1874-1754. ; 40:2, s. 167-172
  • Tidskriftsartikel (refereegranskat)abstract
    • Myocardial infarct size is one of the most important predictors of prognosis in patients suffering an acute myocardial infarction. It can be assessed by enzymatic and electrocardiographic methods. The present report compares dynamic vectorcardiographic monitoring, serial plasma enzyme activity measurements and QRS scoring according to Palmeri as techniques for infarct size estimation. We report the results from 74 patients with acute myocardial infarction, who participated in a randomized trial of treatment with alteplase. A good correlation was found between myocardial infarct size by estimation from enzymatic measurement and from dynamic vectorcardiography. Dynamic vectorcardiography correlated more closely with enzymatically estimated infarct size in patients with Q-wave infarction, regardless of infarct location, than did QRS scoring of the conventional 12-lead electrocardiogram. Furthermore, dynamic vectorcardiography requires no time-consuming analysis and can be used for on-line monitoring of patients with ongoing infarction to estimate the size of an acute infarction while it is developing.
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4.
  • Herlitz, Johan, et al. (författare)
  • A description of the characteristics and outcome of patients hospitalized for acute chest pain in relation to whether they were admitted to the coronary care unit or not in the thrombolytic era
  • 2002
  • Ingår i: International Journal of Cardiology. - : Elsevier Ireland Ltd. - 0167-5273 .- 1874-1754. ; 82:3, s. 279-287
  • Tidskriftsartikel (refereegranskat)abstract
    • bjectives: To describe the characteristics and outcome of patients hospitalized for acute chest pain in relation to whether they were admitted to the coronary care unit (CCU) or not. Design: Prospective observational study with a follow-up of 2 years. Setting: Sahlgrenska University Hospital in Göteborg, Sweden. Subjects: All patients hospitalized due to acute chest pain during 6 months. Main outcome measures: Mortality, use of medical resources, complications and previous history. Results: In all 1.592 patients were admitted to hospital for chest pain, of whom 1.136 (71%) were not directly admitted to the CCU. These patients differed from those directly admitted to the CCU, being older, including more women, having a higher prevalence of known congestive heart failure and a lower degree of initial suspicion of acute myocardial infarction (AMI). Among all patients with confirmed AMI only 58% were directly admitted to CCU. Overall, the occurrence of complications and the use of medical resources were less frequent in the patients not admitted to the CCU. The mortality during the subsequent 2 years was 16.8% for patients not admitted to the CCU and 18.5% for patients admitted to the CCU. When adjusting for various factors at baseline, patients admitted to the CCU had a relative risk of death during 2 years of follow-up being 1.23 0.87–1.73 (P=0.24) as compared with those not admitted to the CCU. Conclusion: In a Swedish university hospital, more than two thirds of patients hospitalized for acute chest pain were not directly admitted to the CCU. They differed from those admitted to the CCU in several aspects. However, their unadjusted and adjusted mortality during the subsequent 2 years did not significantly differ from those admitted to CCU.
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5.
  • Herlitz, Johan, 1949, et al. (författare)
  • Body temperature in acute myocardial infarction and its relation to early intervention with metoprolol.
  • 1988
  • Ingår i: International Journal of Cardiology. - : Elsevier Ireland Ltd. - 0167-5273 .- 1874-1754. ; 20:1, s. 65-71
  • Tidskriftsartikel (refereegranskat)abstract
    • In a subsample of 223 patients participating in a double-blind trial with metoprolol in suspected acute myocardial infarction, body temperature during the first 5 days in hospital was recorded. Patients developing infarction had a mean temperature of 37.3 degrees C compared with 36.8 degrees C for those with no infarction (P less than 0.001). A positive association was observed between enzyme-estimated infarct size and body temperature (P less than 0.001). Patients given metoprolol had a mean temperature of 37.0 degrees C as compared with 37.2 degrees C in those given placebo (P = 0.03). The most marked difference between metoprolol and placebo was observed among those treated very early. We conclude that early treatment with metoprolol in suspected acute myocardial infarction appears to lower body temperature during the following days. This might reflect limitation of the infarct size.
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6.
  • Herlitz, Johan, et al. (författare)
  • Early use of metoprolol and serum potassium in suspected acute myocardial infarction
  • 1989
  • Ingår i: International Journal of Cardiology. - : Elsevier Ireland Ltd. - 0167-5273 .- 1874-1754. ; 22:2, s. 169-175
  • Tidskriftsartikel (refereegranskat)abstract
    • In 1350 patients with suspected acute myocardial infarction, serum potassium was analysed in the emergency ward. The effect of metoprolol was compared with placebo in a double-blind randomized trial. Metoprolol increased serum potassium from 4.11 ± 0.02 mmol/l to 4.27 ± 0.02 mmol/l (P<0.001) during the 1st day after hospital admission, whereas serum potassium levels remained fairly constant in patients given placebo during the same time (4.11 ± 0.02 to 4.14 ± 0.02 mmol/l; P>0.2). Similar results were obtained when analysing patients with a confirmed myocardial infarction separately. The effects appeared homogeneously distributed in subgroups related to sex, clinical history, infarct site, infarct size and delay time from onset of symptoms to start of treatment. We conclude that early treatment with the beta-1-selective blocker metoprolol in patients with suspected acute myocardial infarction increases serum potassium.
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7.
  • Herlitz, Johan, 1949, et al. (författare)
  • Impact of early thrombolysis on chest pain score reflecting myocardial ischemia in relation to various markers of ischemic damage. TEAHAT Study Group.
  • 1993
  • Ingår i: International journal of cardiology. - : Elsevier Ireland Ltd. - 0167-5273 .- 1874-1754. ; 41:2, s. 123-31
  • Tidskriftsartikel (refereegranskat)abstract
    • We randomized 352 patients with pain suggestive of acute myocardial infarction who were seen less than 3 h after onset of symptoms to either tissue plasminogen activator or placebo. The impact of treatment on chest pain score was assessed during the first 24 h and related to limitation of final myocardial damage as assessed by various indirect markers. The most marked effect of tissue plasminogen activator was observed in the chest pain score being reduced by 43% in the tissue plasminogen activator group as compared with placebo. Limitation of infarct size with tissue plasminogen activator reached the following percentage values when various methods were used: maximum serum lactate dehydrogenase I activity, 32%; vectorcardiography (QRS vector difference), 20%; electrocardiography (Palmeri score), 20%; ejection fraction, 9%. We conclude that early thrombolysis in acute myocardial infarction reduces the severity of chest pain by nearly 50%. The effect on chest pain is much more marked as compared with the effect on various markers of the final ischemic damage.
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8.
  • Herlitz, Johan, et al. (författare)
  • Long term prognosis after CABG in relation to preoperative left ventricular ejection fraction
  • 2000
  • Ingår i: International Journal of Cardiology. - : Elsevier Ireland Ltd. - 0167-5273 .- 1874-1754. ; 72:2, s. 163-171
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To evaluate the mortality rate, risk indicators for death, mode of death and symptoms of angina pectoris during 5 years after coronary artery by pass grafting (CABG) in relation to the preoperative left ventricular ejection fraction (LVEF). PATIENTS: All patients in western Sweden who underwent CABG without concomitant valve surgery and without previously performed CABG between June 1988 and June 1991. RESULTS: In all 1904 patients were included in the analysis, of whom 173 (9%) had a LVEF < 40%. Patients with LVEF > or = 40% had a 5-year mortality of 12.5%. LVEF < 40% was associated with an increased risk of death (RR 2.3; 95% cl 1.7-3.1). There was no significant interaction between age, sex or any other factor in terms of clinical history and LVEF. However, left main stenosis was a strong independent predictor of death among patients with LVEF < 40% but not in those with a higher LVEF. Patients with a low LVEF more frequently died a cardiac death and a death associated with myocardial infarction (AMI). Furthermore they more frequently died in association with congestive heart failure and ventricular fibrillation. Among survivors, symptoms of angina pectoris were similar regardless of the preoperative LVEF. CONCLUSION: Patients with a low preoperative LVEF have a more than two-fold increased risk of death during 5 years after CABG. Their increased risk of death includes cardiac death, death associated with AMI, congestive heart failure and ventricular fibrillation.
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9.
  • Herlitz, Johan, et al. (författare)
  • Predictors of death during 5 years after coronary artery bypass grafting
  • 1998
  • Ingår i: International Journal of Cardiology. - : Elsevier Ireland Ltd. - 0167-5273 .- 1874-1754. ; 64:1, s. 15-23
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim: To describe predictors of death during five years of follow-up after coronary artery bypass grafting (CABG). Methods: All patients who underwent CABG during a period of three years in Western Sweden were included in the analysis and were prospectively followed for five years. Mortality was related to preoperative and peroperative factors as well as findings at physical examination and medication 4–7 days after the operation. Results: In all 2121 patients underwent CABG without simultaneous valve surgery during the study period. The overall five-year mortality was 14.6%. The following appeared as independent predictors of death during five years but >30 days after CABG: Current smoking (relative risk ratio 2.43 [95% Ci 1.64–3.61]) degree of impairment of left ventricular function (1.51 [1.23–1.86]), a history of congestive heart failure (1.91 [1.35–2.70]), age (1.04 [1.02–1.06]) arrhythmia 4–7 days after CABG (1.89 [1.26–2.83]), intermittent claudication (1.73 [1.19–2.52]), a history of diabetes (1.71 [1.16–2.51]), time in respirator (1.43 [1.13–1.81]), a history of cerebrovascular disease (1.72 [1.13–2.64]), treatment with digitalis at day 4–7 (1.48 [1.07–2.05]), enzyme release (1.49 [1.03–2.16]). Conclusion: Among patients who underwent CABG 11 independent predictors for mortality were found including smoking habits at CABG, history of cardiovascular diseases, left ventricular dysfunction, age, post operative complications and medication after CABG.
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10.
  • Herlitz, Johan, et al. (författare)
  • Predictors of death during 5 years after hospital discharge among patients with a suspected acute coronary syndrome with particular emphasis on whether an infarction was developed
  • 1998
  • Ingår i: International Journal of Cardiology. - : Elsevier Ireland Ltd. - 0167-5273 .- 1874-1754. ; 66:1, s. 73-80
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim: To describe predictors of death after hospital discharge during 5 years of follow-up in a consecutive series of patients surviving hospitalization for symptoms and signs of a confirmed or suspected acute coronary syndrome. Patients and methods: All patients who between February 15, 1986 and November 9, 1987, were hospitalized at Sahlgrenska University Hospital in Göteborg, Sweden, and fulfilled the above given criteria. Results: In all, 1948 patients were included of whom 731 (38%) had a confirmed acute myocardial infarction (AMI). Independent risk indicators for death were: age (P=0.0001); male sex (P=0.005); a history of previous AMI (P=0.0001), diabetes mellitus (P=0.003) and smoking (P=0.0001); development of AMI during first 3 days in hospital (P=0.0001); in-hospital signs of congestive heart failure (P=0.0001); prescription of digitalis (P=0.001) and diuretics (P=0.02) at hospital discharge. A history of smoking interacted significantly (P=0.02) with the relationship between development of AMI and prognosis. Thus, the difference between patients who did and who did not develop an AMI was more pronounced among non-smokers than smokers. Other factors which interacted significantly with this relationship were a history of angina pectoris, and development of ventricular fibrillation and hypotension while in hospital. Conclusion: Among hospital survivors of a confirmed or suspected acute coronary syndrome predictors of death during 5 years were: age, male sex, history of AMI, diabetes mellitus and smoking, development of AMI and congestive heart failure while in hospital and prescription of digitalis and diuretics at hospital discharge. A history of smoking and angina pectoris as well as development of hypotension and ventricular fibrillation while in hospital interacted significantly with the relationship between development of AMI and prognosis.
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