[Mitral prolapse and the ergometric findings].
In evaluating the significance of arrhythmias and ECG changes during exercise, 42 consecutive patients (pts) with mitral valve prolapse (MVP) underwent a symptom-limited cycloergometer Exercise Stress Test (EST) with load increase of 25 watts every 3 minutes. Eight patients (19%) were positive for anamnestic cardiopalm. The patients were divided in 2 groups, according to echocardiographic evidence of the MPV: group A (12 patients, mean age 32 +/- 13) with prolapse of one mitral leaflet and group B (30 patients, mean age 30 +/- 13) with prolapse of both mitral leaflets. Exercise duration doesn't differ significantly in the two groups. No arrhythmias during EST were found in group A, while arrhythmias were present in 6 patients (20%) in group B. A strong correlation was found between anamnestic cardiopalm and arrhythmias during EST (6/8 = 75%). Three of four patients (75%) with ST impairment during EST, showed at thallium myocardial scintigraphy a non reversible perfusion defect after exercise. These data showed a higher incidence of arrhythmias during EST in patients with MVP of both leaflets and good relationship with symptomatology of cardiopalm.
Irace
L
L
Cattedra di Cardiologia, I Facoltà di Medicina e Chirurgia, Università degli Studi di Napoli Federico II.
Guadagno
I
I
Cice
G
G
Citro
R
R
Di Stasio
M
M
Mottola
M
M
Ricciardi
L
L
Sannino
A
A
Cocchia
R
R
Iacono
A
A
D000293:Adolescent; D000328:Adult; D015150:Echocardiography, Doppler; D005080:Exercise Test / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000000981:diagnostic imaging; D008945:Mitral Valve Prolapse / Q000175:diagnosis* / Q000453:epidemiology; D011379:Prognosis; D011877:Radionuclide Imaging; D013793:Thallium
D013793:Thallium
Prolasso della mitrale e rilievi ergometrici.