A Prospective Randomized Comparison of Permanent Septal versus Apical Right Ventricular Pacing

INTERVENTION: Right ventricular septal pacing Right ventricular apical pacing CONDITION: Sick sinus syndrome Atrial fibrillation with bradycardia Advanced AV block Complete AV block PRIMARY OUTCOME: Left ventricular ejection fraction,; BNP, SECONDARY OUTCOME: admission due to major adverse cardiac event,; heart failure,; pacing failure,; Percent Fractional shortening,; Left atrial diameter,; Left ventricular systolic diameter,; Left ventricular diastolic diameter,; Tricuspid valve regurgitation,; Mitral valve regurgitation,; QRS width,; QRS axis, INCLUSION CRITERIA: Patients who have a indication of permanent pace making instrument implantation