Radionuclide imaging of myocardium with mental stress in the investigation of thoracic pain.
Thoracic pain is a common symptom in emergency services, and stress radionuclide imaging represents one of the phases of risk stratification in these individuals. However, a group of patients with negative functional exams after physical or pharmacological stress develops myocardial ischemia during this psychological stress. Alterations in vascular tonus as a response to endogenous mechanisms are the physiopathologic basis for such alterations. We report a case that illustrates how mental stress radionuclide imaging has the potential to be used in the assessment of myocardial ischemia non-detected by conventional methods in patients with suspicion of ischemic thoracic pain.
Silva
Lívia Maria Lima da
LM
Hospital Universitário Antônio Pedro, Universidade Federal Fluminense, Niterói, RJ. limalisi26@yahoo.com.br
Barbirato
Gustavo Borges
GB
Drumond Neto
Cantídio
C
Nóbrega
Antonio Claudio Lucas da
AC
Coimbra
Alexandro
A
Mesquita
Claudio Tinoco
CT
D000368:Aged; D002637:Chest Pain / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging / Q000379:methods*; D013315:Stress, Psychological / Q000150:complications*