| 1. |
- Bukachi, Frederick, et al.
(författare)
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Clinical outcome of coronary angioplasty in patients with ischaemic cardiomyopathy
- 2003
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Ingår i: International Journal of Cardiology. - 0167-5273 .- 1874-1754. ; 88:2-3, s. 167-174
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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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| 2. |
- Babu-Narayan, Sonya V, et al.
(författare)
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Dyssynchrony and electromechanical delay are associated with focal fibrosis in the systemic right ventricle - Insights from echocardiography.
- 2016
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Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273 .- 1874-1754. ; 220, s. 382-388
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Systemic right ventricular (RV) dysfunction and sudden cardiac death remain problematic late after Mustard operation for transposition of the great arteries. The exact mechanism for that relationship is likely to be multifactorial including myocardial fibrosis. Doppler echocardiography gives further insights into the role of fibrosis shown by late gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR) in late morbidity.METHODS AND RESULTS: Twenty-two consecutive patients, mean age 28±8years, were studied with 2D echocardiography, and also assessed by LGE CMR. The presence of LGE in 13/22 patients (59%) was related to delayed septal shortening and lengthening (P=0.002 &P=0.049), prolonged systemic RV isovolumic contraction time (P=0.024) and reduced systemic RV free wall and septal excursion (P=0.027 &P=0.005). The systemic RV total isovolumic time was prolonged but not related to extent of LGE. LGE extent was related to markers of electromechanical delay and dyssynchrony (delayed onset of RV free wall shortening and lengthening; r=0.73 &P=0.004 and r=0.62 &P=0.041, respectively, and QRS duration r=0.68, P<0.01) and was inversely related to systolic RV free wall shortening velocity (r=-0.59 &P=0.042). The presence of LGE was also related to lower exercise capacity, ≥mild tricuspid regurgitation and more arrhythmia (P=0.008, P=0.014 and P=0.040). RV free wall excursion and systolic tissue Doppler velocity were related to CMR derived RV ejection fraction (r=0.51, P=0.015, and r=0.77, P=<0.001, respectively).CONCLUSION: Post Mustard repair, myocardial fibrosis is related to dyssynchrony, RV long axis dysfunction and tricuspid regurgitation. Echocardiographic measurements of systemic RV function can be confidently used in serial follow-up following Mustard operation.
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| 3. |
- Bajraktari, Gani, et al.
(författare)
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Comparison of drug-eluting balloon versus drug-eluting stent treatment of drug-eluting stent in-stent restenosis : A meta-analysis of available evidence
- 2016
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Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273 .- 1874-1754. ; 218, s. 126-135
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: In-stent restenosis (ISR) remains an important concern despite the recent advances in the drug-eluting stent (DES) technology. The introduction of drug-eluting balloons (DEB) offers a good solution to such problem.OBJECTIVES: We performed a meta-analysis to assess the clinical efficiency and safety of DEB compared with DES in patients with DES-ISR.METHODS: A systematic search was conducted and all randomized and observational studies which compared DEB with DES in patients with DES-ISR were included. The primary outcome measure-major adverse cardiovascular events (MACE)-as well as individual events as target lesion revascularization (TLR), stent thrombosis (ST), myocardial infarction (MI), cardiac death (CD) and all-cause mortality, were analyzed.RESULTS: Three randomized and 4 observational studies were included with a total of 2052 patients. MACE (relative risk [RR]=1.00, 95% confidence interval (CI) 0.68 to 1.46, P=0.99), TLR (RR=1.15 [CI 0.79 to 1.68], P=0.44), ST (RR=0.37[0.10 to 1.34], P=0.13), MI (RR=0.97 [0.49 to 1.91], P=0.93) and CD (RR=0.73 [0.22 to 2.45], P=0.61) were not different between patients treated with DEB and with DES. However, all-cause mortality was lower in patients treated with DEB (RR=0.45 [0.23 to 0.87, P=0.019) and in particular when compared to only first generation DES (RR 0.33 [0.15-0.74], P=0.007). There was no statistical evidence for publication bias.CONCLUSIONS: The results of this meta-analysis showed that DEB and DES have similar efficacy and safety for the treatment of DES-ISR.
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| 4. |
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| 5. |
- Bajraktari, Gani, et al.
(författare)
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Independent and incremental prognostic value of Doppler-derived left ventricular total isovolumic time in patients with systolic heart failure
- 2011
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Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273 .- 1874-1754. ; 148:3, s. 271-275
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: A prolonged total isovolumic time (T-IVT) has been shown to be associated with worsening survival in patients submitted to coronary artery surgery. However, it is not known whether it has prognostic significance in patients with chronic systolic heart failure (HF).AIM: To determine the prognostic value of T-IVT in comparison with other clinical, biochemical and echocardiographic variables in patients with chronic systolic HF.METHODS: Patients (n=107; age 68+/-12years, 25% women) with chronic systolic HF, left ventricular ejection fraction (EF) <45%, and sinus rhythm, underwent a complete Doppler echocardiographic study, that included tissue Doppler long axis velocities and total isovolumic time (T-IVT), determined as [60-(total ejection time+total filling time)]. Plasma N-terminal pro-B natriuretic peptide (NT-pro-BNP) was also measured. The associations of dichotomous variables selected according to the Receiver Operator Characteristic analysis were assessed using the Cox proportional hazard model.RESULTS: Follow-up period was 37+/-18months. Multivariate predictors of events were T-IVT >/=12.3% s/min, mean E/E(m) ratio >/=10, log NT-pro-BNP levels >/=2.47pg/ml and LV EFCONCLUSIONS: Prolonged T-IVT added to the prognostic stratification of patients with systolic HF.
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| 6. |
- Bajraktari, Gani, et al.
(författare)
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Left ventricular asynchrony and raised filling pressure predict limited exercise performance assessed by 6 minute walk test
- 2011
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Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273 .- 1874-1754. ; 146:3, s. 385-389
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Six minute walking test (6-MWT) may serve as a reproducible test for assessing exercise capacity in heart failure (HF) patients and can be clinically predicted. We aimed in this study to ascertain if global markers of ventricular asynchrony can predict 6MWT distance in a group of patients with HF and left ventricular (LV) ejection fraction (EF) <45%.METHODS AND RESULTS: This study included 77 consecutive patients (60+/-12 years) with stable HF. LV end-diastolic and end-systolic dimensions, shortening fraction (SF), EF, myocardial velocities, t-IVT, and Tei index were measured, as well as 6-MWT distance. Patients with limited exercise performance (CONCLUSIONS: In heart failure patients, the higher the filling pressures and the more asynchronous the left ventricle, the poorer is the patient's exercise capacity. These findings highlight specific LV functional disturbances that should be targeted for better optimization of medical and/or electrical therapy.
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| 7. |
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| 9. |
- Batalli-Këpuska, Arbnora, et al.
(författare)
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Abnormal systolic and diastolic myocardial function in obese asymptomatic adolescents
- 2013
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Ingår i: International Journal of Cardiology. - : Elsevier. - 0167-5273 .- 1874-1754. ; 168:3, s. 2347-2351
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Tidskriftsartikel (refereegranskat)abstract
- Structural and functional cardiac changes are known in obese adults. We aimed to assess the relationship between body mass index (BMI) and cardiac function in overweight and obese asymptomatic adolescents. Ninety three healthy adolescents, aged 12.6±1.2years, received weight, height, BMI, waist, hips, waist/hips ratio assessment, hematology and biochemistry tests and an echocardiogram. Based on BMI, subjects were divided into: lean (L, n=32), overweight (Ov, n=33) and obese (Ob, n=32). Interventricular septal and LV posterior wall thickness were increased parallel to the BMI (L: 0.84±0.1cm, Ov: 0.88±0.1cm, Ob: 0.96±0.1cm, p<0.001, and L: 0.78±0.1cm, Ov: 0.8±0.1cm, Ob: 0.94±0.1cm, p<0.001, respectively) as were relative wall thickness (RWT) and mass index (LVMI) (L: 0.34±0.05, Ov: 0.34±0.05, Ob: 0.40±0.04, p<0.001, and L: 47.7±8.4g/m(2), Ov: 51.9±8.3g/m(2), Ob: 65.2±13.3g/m(2), p=0<001, respectively). LV early diastolic (E') lateral and septal velocities (L: 15.3±3.9cm/s, Ov: 13.6±4cm/s, Ob: 10.5±3.4cm/s, p<0.001, and L: 12.2±2.3cm/s, Ov: 11.1±2.4cm/s, Ob: 9.8±3.1cm/s, p=0.003, respectively), and systolic (S') velocities (L: 9.2±1.4cm/s, Ov: 9.3±2.3cm/s, Ob: 8.04±1.5cm/s, p=0.018, and L: 9.05±2.3cm/s, Ov: 9±2.4cm/s, Ob: 7.6±1.1cm/s, p=0.014, respectively) were all reduced, only in obese adolescents. LV lateral E' (r=-0.44, p<0.001) and S' (r=-0.29, p=0.005) correlated with BMI. In asymptomatic adolescents, LV wall is thicker and diastolic function impaired and correlate with BMI. These findings demonstrate early cardiac functional disturbances which might explain the known obesity risk for cardiac disease.
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