ABSTRACT
BACKGROUND: Left ventricular lead placement in a suitable coronary vein is a key determi-nant of responsiveness to cardiac resynchronization therapy (CRT). Multidetector cardiac tomography (MDCT) is a non-invasive alternative to depict cardiac venous anatomy although coronary sinus (CS) retrograde venography (RV) is the gold standard. The aim of this study was to evaluate the accuracy of MDCT to determine the presence of CS tributaries before CRT. METHODS: A retrospective analysis of 41 consecutive patients eligible to CRT was performed. MDCT was assessed in all patients before CRT and RV was achieved in 39 patients. Both methods evaluated the presence of the inferior interventricular vein (IIV), posterior vein (PV) and lateral main vein (LMV). CS ostium diameter and distance between the CS ostium and right atrium (RA) lateral wall were also measured. RESULTS: The IIV was identified in 100% of MDCT and in 43.6% of RV. In comparison to RV, the MDCT's sensitivity to identify PV and LMV was 100% for both, kappa coefficient of 0.792 (CI 95% 0.46-0.93) and 0.69 (CI 95% 0.46-0.91), respectively. There was no significant difference between ischemic and non-ischemic patients regarding the presence of PV or LMV. Median CS antero-posterior diameter was 10.3 mm (IQR 7.5-13) and supero-inferior was 14.1 mm (IQR 11.5-17) (p < 0.01). A positive correlation (p < 0.001) between echocardiographic RA area and the distance from CS ostium to the RA lateral wall in the MDCT was observed. CONCLUSIONS: MDCT is as accurate as RV to depict CS and its tributaries (IIV, PV, LMV), and it could be useful as a non-invasive technique before CRT.
Subject(s)
Cardiac Resynchronization Therapy , Coronary Angiography/methods , Coronary Sinus/diagnostic imaging , Heart Failure/diagnostic imaging , Heart Failure/therapy , Multidetector Computed Tomography , Phlebography/methods , Aged , Cardiac Resynchronization Therapy Devices , Coronary Angiography/instrumentation , Equipment Design , Humans , Multidetector Computed Tomography/instrumentation , Phlebography/instrumentation , Predictive Value of Tests , Retrospective Studies , Tomography Scanners, X-Ray Computed , UltrasonographyABSTRACT
BACKGROUND: Infective endocarditis includes the endovascular devices infection. The main objective was to evaluate the clinical characteristics and evolution of the endocarditis related to electronics devices. CASE REPORTS: Between 2002 - 2007 periods were identified 7 patients, age average of 56.5 years. The clinical presentation was fever of unknown origin in 85.7%, with a mean of 28 days of evolution. The microbiology isolated was coagulase-negative staphylococci in 6 patients and staphylococcus aureus in 1 patient. The treatment was complete system extraction and antibiotic therapy, except in 1 case that only received antibiotics. There were 2 deaths (28,5%) during in hospital follow-up. CONCLUSION: The endocarditis related to devices is a disease with high mortality. Early diagnosis and system extraction are very important for the treatment and prognosis.
Subject(s)
Defibrillators, Implantable/adverse effects , Endocarditis/etiology , Fever of Unknown Origin/etiology , Pacemaker, Artificial/adverse effects , Prosthesis-Related Infections/etiology , Adult , Aged , Aged, 80 and over , Device Removal , Endocarditis/therapy , Female , Humans , Male , Middle Aged , Pacemaker, Artificial/microbiology , Young AdultABSTRACT
Antecedentes: Dentro del síndrome de endocarditis infecciosa, se incluyen la infección de dispositivos endovasculares. el objetivo de la presentación fue avaluar las características clínicas y la evolución de la endocarditis relacionada a dispositivos electrónicos endovasculares. Casos clínicos: entre 2002 - 2007 fueron identificados 7 pacientes con edad promedio de 56,5 años. La presentación clínica fue en el 85,7% fiebre de origen desconocido, con un promedio de 28 días de evolución del cuadro. Los germenes aislados fueron estafilococo coagulasa negativo en 6 pacientes y estafilococo aureus en 1 paciente. El tratamiento se baso en la extracción del sistema y terapia antibiótica, salvo 1 caso que solo recibió tratamiento antibiótico. Hubo 2 (28,5%) muertes intrahospitalarias durante el seguimiento. Conclusión: La endocarditis relacionada a dispositivos es una entidad con elevada mortalidad. el diagnóstico temprano y la extracción del sistema son de vital importancia para el tratamiento y pronóstico.
BACKGROUND: Infective endocarditis includes the endovascular devices infection. The main objective was to evaluate the clinical characteristics and evolution of the endocarditis related to electronics devices. CASE REPORTS: Between 2002 - 2007 periods were identified 7 patients, age average of 56.5 years. The clinical presentation was fever of unknown origin in 85.7%, with a mean of 28 days of evolution. The microbiology isolated was coagulase-negative staphylococci in 6 patients and staphylococcus aureus in 1 patient. The treatment was complete system extraction and antibiotic therapy, except in 1 case that only received antibiotics. There were 2 deaths (28,5%) during in hospital follow-up. CONCLUSION: The endocarditis related to devices is a disease with high mortality. Early diagnosis and system extraction are very important for the treatment and prognosis.
