Eleven patients, aged 36 to 55 years, with silicone breast implants ha
d episodes of severe chest pain similar to heart attacks 6 weeks to 7
years after breast implantation; one patient had a severe attack 1 mon
th after explantation. The chest pain, which was not related to physic
al exertion, tasted from 15 minutes to 4 days, and descriptions of it
varied from a ''pressing'' type of pain to ''stabbing'' pain with radi
ation to the shoulders, left arm, and jaw. The associated symptoms wer
e diaphoresis, nausea, vomiting, dyspnea, and palpitations. All of the
patients had a normal electrocardiogram (ECG) with the exception of o
ne, whose ECG showed nonspecific ST changes. Ten had cardiac evaluatio
ns, all of which yielded normal results. All had implant removal, and
five were found to have at least one ruptured implant. Nine had an imp
lant capsule biopsy; all had chronic inflammatory rinds, and five had
free silicone in tissue whether or not the implants were ruptured. All
eight who had a pectoralis major muscle biopsy had abnormal results:
(neurogenic atrophy [six], fasciitis [three], myositis [one], chronic
inflammation [one], free silicone [one], and neuroma [one]). We conclu
ded that silicone breast implants may cause an atypical chest pain syn
drome, probably due to local inflammatory reactions and neuroma format
ion.