Pacing lead-induced granuloma in the atrium: a foreign body reaction to polyurethane.
We described a case of an 82-year-old male who presented with a granuloma entrapping the polyurethane-coated pacing lead at the site of contact on the atrium. He had been paced for 8 years without symptoms or signs suggestive of an allergic reaction to the pacemaker system and died from thrombosis of the superior mesenteric artery and heart failure. A histological examination of the nodule showed an incidental granuloma with multinucleated giant cells. No granuloma was found in the heart or the lung.
Cardiovascular Center, Tachikawa General Hospital, Nagaoka 940-8621, Japan ; Gastroenterology, Tachikawa General Hospital, Nagaoka 940-8621, Japan.
Shinagawa
S
Yoko
Gastroenterology, Tachikawa General Hospital, Nagaoka 940-8621, Japan.
Yuka
Y
Kobayashi
Gastroenterology, Tachikawa General Hospital, Nagaoka 940-8621, Japan.
Takao
T
Iiri
Cardiovascular Center, Tachikawa General Hospital, Nagaoka 940-8621, Japan.
Hitoshi
H
Kitazawa
Cardiovascular Center, Tachikawa General Hospital, Nagaoka 940-8621, Japan.
Masaaki
M
Okabe
Department of Pathology, Tachikawa General Hospital, Nagaoka 940-8621, Japan.
Hiroshi
H
Kobayashi
Department of Pathology, Tachikawa General Hospital, Nagaoka 940-8621, Japan.
Etsuo
E
Okazaki
Department of Research and Development, Tachikawa Medical Center, Tachikawa General Hospital, Nagaoka 940-8621, Japan.
Yoshifusa
Y
Aizawa