PMID- 2956922
OWN - NLM
STAT- MEDLINE
DCOM- 19870831
LR  - 20091111
IS  - 0003-3928 (Print)
IS  - 0003-3928 (Linking)
VI  - 36
IP  - 5
DP  - 1987 May
TI  - [False positive of the exercise test and right auricular hypertrophy].
PG  - 249-53
AB  - Seldom mentioned as a possible etiology of false positive stress tests (ST), the 
      right atrial hypertrophy (RAH) may cause electrocardiographic aspects evocative 
      of myocardial ischemia in the lower areas. The retrospective study concerns STs 
      in 4 patients, staying in a cardiac rehabilitation center, following (D14) 
      surgery for isolated type II IAC, Fallot's trilogy (n = 1), or dual valvular 
      disease (tricuspid insufficiency and mitral stenosis, n = 1), and presenting all 
      on basal ECG a RAH (group I). These STs are compared to that of a reference group 
      operated (D14) from a IAC type II (isolated n = 3, associated to RVPA n = 1), but 
      without signs of RAH on the rest ECG (group II). All other possible causes of 
      electrically positive STs were eliminated from this study. In patients with RAH, 
      the stress test is positive in the lower area (ST = -1.27 +/- 0.25 mm). In four 
      other patients without HAD, the STest is negative in 3 cases and uncertain in 
      one. These results do not seem to be linked to pre-operative hemodynamic data, 
      nor to sonocardiographic data. Atrial repolarization alone seems to be the cause 
      of these ECG alterations during stress, as demonstrated, in one patient, by 
      sudden variations of the ST segment during a change from an atrial rhythm (AR) 
      (with retrograde atrial depolarization) to a sinus rhythm (SR). These 
      observations suggest the role of atrial repolarization in the origin of false 
      positive stress tests in patients with RAH.
FAU - Monpere, C
AU  - Monpere C
FAU - Desveaux, B
AU  - Desveaux B
FAU - Vernochet, P
AU  - Vernochet P
FAU - Quilliet, N
AU  - Quilliet N
FAU - Brochier, M
AU  - Brochier M
LA  - fre
PT  - English Abstract
PT  - Journal Article
TT  - Faux positif de l'epreuve d'effort et hypertrophie auriculaire droite.
PL  - France
TA  - Ann Cardiol Angeiol (Paris)
JT  - Annales de cardiologie et d'angeiologie
JID - 0142167
SB  - IM
MH  - Adult
MH  - Cardiomegaly/diagnosis/*physiopathology
MH  - Coronary Disease/diagnosis/*physiopathology
MH  - Diagnosis, Differential
MH  - Exercise Test
MH  - False Positive Reactions
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
EDAT- 1987/05/01 00:00
MHDA- 1987/05/01 00:01
CRDT- 1987/05/01 00:00
PHST- 1987/05/01 00:00 [pubmed]
PHST- 1987/05/01 00:01 [medline]
PHST- 1987/05/01 00:00 [entrez]
PST - ppublish
SO  - Ann Cardiol Angeiol (Paris). 1987 May;36(5):249-53.