ДОБАВОЧНАЯ ЛЕВАЯ ВЕРХНЯЯ ПОЛАЯ ВЕНА: ДИАГНОСТИКА ПРИ ЛЕЧЕНИИ НАРУШЕНИЙ РИТМА СЕРДЦА

Three case reports are considered of revelation of an accessory left superior vena cava in the course of permanent endocardial pacing and catheter procedures with catheterization of the coronary sinus through the left subclavian vein.