High-intensity Transcranial Doppler signals in patients with cardiac valve prosthesis: A prospective study;Segnali Doppler transcranici ad alta intensita in portatori di protesi valvolari cardiache: Studio prospettico

Giornale Italiano di Cardiologia

Volumn 29, Issue 4, 1999, Pages 401-410

  D'Alfonso, Alessandro ^a   Milano, Aldo Domenico ^a   Codecasa, Riccardo ^a   De Carlo, Marco ^a   Nardi, Carmela ^a   Orlandi, Giovanni ^a   Paoli, Claudio ^a   Murri, Luigi ^a   Bortolotti, Uberto ^a,b  

^a UNIVERSITY OF PISA   (Italy)

^b CISANELLO HOSPITAL   (Italy)

Author keywords

Echo Doppler; Embolism; Prosthetic valves

Indexed keywords

ADULT; AGED; ARTICLE; BIOPROSTHESIS; DOPPLER ECHOGRAPHY; EMBOLISM; FEMALE; HEART VALVE PROSTHESIS; HEART VALVE REPLACEMENT; HUMAN; MAJOR CLINICAL STUDY; MALE; MIDDLE CEREBRAL ARTERY; PATHOGENESIS; PROSPECTIVE STUDY; RISK ASSESSMENT; SIGNAL DETECTION;

AGED; AGED, 80 AND OVER; AORTIC VALVE; BIOPROSTHESIS; FEMALE; FOLLOW-UP STUDIES; HEART VALVE PROSTHESIS; HUMANS; LOGISTIC MODELS; MALE; MIDDLE AGED; MITRAL VALVE; PROSPECTIVE STUDIES; RISK FACTORS; STATISTICS, NONPARAMETRIC; THROMBOEMBOLISM; TIME FACTORS; ULTRASONOGRAPHY, DOPPLER, TRANSCRANIAL;

EID: 0032931115     PISSN: 00465968     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (31)

1. BORTOLOTTI U, MILANO A, MAZZUCCO A, ET AL: The Hancock II porcine bioprosthesis. A preliminary report. J Thorac Cardiovasc Surg 1989; 97: 415.
2. MILANO A, BORTOLOTTI U, MAZZUCCO A, ET AL: Heart valve replacement with the Sorin tilting-disc prosthesis. A 10-year experience. J Thorac Cardiovasc Surg 1992; 103: 267-275.
3. ZUPPIROLI A, FAVILLI S, ARFAIOLI C, ET AL: Role of two-dimensional echocardiography in the diagnosis of embolic cardiopathy in patients with transient cerebral ischemia attacks. G Ital Cardiol 1988; 18: 592-595.
4. AASLID R, MARKWALDER TM, NORNES H: Noninvasive transcranial Doppler ultrasound recording of flow velocity in basal cerebral arteries. J Neurosurg 1982; 57: 769-774.
5. BRUCHER R, RUSSELL D: Spectral characteristics of emboli with artefact suppression. Stroke 1993; 24: 510.
6. BUNEGIN L, WAHL D, ALBIN MS: Detection and volume estimation of embolic air in the midlle cerebral artery using transcranial Doppler sonography. Stroke 1994; 25: 593-600.
7. MARKUS HS, BROWN MM: Differentiation between different pathological cerebral embolic materials using transcranial Doppler in an in vitro model (published erratum appears in Stroke 1993; 24: 913). Stroke 1993; 24: 1-5.
8. NICHOLLS SC, GLICKERMAN DJ, LAM AM: Cerebral embolisation: transcranial Doppler monitoring in the swine model. Stroke 1992; 23: 473-483.
9. RUSSELL D, MADDEN KP, CLARK WM, SANDSET PM, ZIVIN JA: Detection of arterial emboli using Doppler ultrasound in rabbits. Stroke 1991; 22: 253-258.
10. ORLANDI G, PARENTI G, BERTOLUCCI A, MURRI L: Silent cerebral microembolism in asymptomatic and symptomatic carotid artery stenoses of low and high degree. Eur Neurol 1997; 38: 39-43.
11. HARRISON MJG, PUGSLEY W, NEWMAN S, PASCHALIS C, KLINGER L, TREASURE T, ASPEY B: Detection of middle cerebral emboli during coronary artery bypass surgery using transcranial Doppler sonography (letter). Stroke 1990; 21: 1512.
12. PADAYACHEE TS, GOSLING RG, BISHOP CC, BURNARD KJ, BROWSE NL: Monitoring middle cerebral artery blood flow velocity during carotid endarteriectomy. Br J Surg 1986; 73: 98-100.
13. PADAYACHEE TS, PARSONS S, THEOBALD R, LINDLEY J, GOSLING RG, DEVERALL PB: The detection of microemboli in the middle cerebral artery during cardiopulmonary bypass: a transcranial Doppler ultrasound investigation using membrane and bubble oxygenators. Ann Thorac Surg 1987; 44: 298-302.
14. SPENCER MP, THOMAS GI, NICHOLLS SC, SAUVAGE LR: Detection of middle cerebral artery emboli during carotid endarterectomy using transcranial Doppler ultrasonography. Stroke 1990; 21: 415-423.
15. RAMS JJ, DAVIS DA, LOLLEY DM, BERGER MP, SPENCER M: Detection of microemboli in patients with artificial heart valves using transcranial Doppler: preliminary observations. J Heart Valve Dis 1993; 2: 37-41.
16. GRAF T, FISCHER H, REUL H, RAU G: Cavitation potential of mechanical heart valve prostheses. Int J Artif Organs 1991; 14: 169-174.
17. CONSENSUS COMMITTEE OF THE NINTH INTERNATIONAL CEREBRAL HEMODYNAMIC SYMPOSIUM: Basic identification criteria of Doppler microembolic signals. Stroke 1995; 26: 1123.
18. MARKUS HS, ACKERSTAFF R, BABIKIAN V, ET AL: Intercenter agreement in reading Doppler embolic signals. A multicenter international study. Stroke 1997; 28: 1307-1310.
19. GROSSET DG, GEORGIADIS D, STIRLING S, ET AL: Subclinical embolism in patients undergoing cardiac valve implantation and coronary artery bypass surgery. Eur J Cardiothorac Surg 1994; 8: 63-66.
20. MÜLLER HR, BURKHARDT D, CASTY M, PFISTERER ME, BUSER MW: High intensity transcranial Doppler signals (hits) after prosthetic valve implantation. J Heart Valve Dis 1994; 3: 602-606.
21. GEORGIADIS D, KAPS M, BERG J, ET AL: Incidence and characteristics of intracranial microemboli signals in patients with different types of prosthetic cardiac valves. Eur J Cardiothorac Surg 1996; 10: 253-258.
22. GEORGIADIS D, KAPS M, BERG J, ET AL: Transcranial Doppler detection of microemboli in prosthetic heart valve patients: dependency upon valve type. Eur J Cardiothorac Surg 1996; 10: 253-257.
23. GROSSET DG, GEORGIADIS D, KELMAN AW, ET AL: Detection of microemboli by transcranial Doppler ultrasound. Tex Heart Inst J 1996; 23: 289-292.
24. GEORGIADIS D, KAPS M, SIEBLER M, ET AL: variability of Doppler microembolic signal counts in patients with prosthetic cardiac valves. Stroke 1995; 26: 439-443.
25. SLIWKA U, DIEHL B, MEYER B, SCHÖNDUBE F, NOTH J: Transcranial Doppler "high intensity transient signals" in the acute phase and long-term follow-up of mechanical heart valve implantation. J Stroke Cerebrovasc Dis 1995; 5: 139-146.
26. KAPS M, HANSEN J, WEIHER M, TIFFERT K, KAYSER I, DROSTE DW: Clinically silent microemboli in patients with artificial prosthetic aortic valves are predominantly gaseous and not solid. Stroke 1997; 28: 322-325.
27. SPENCER MP: Hyperbaric compression and Doppler-detected microemboli in prosthetic valve patients. Cerebrovasc Dis 1996; 6 (Suppl 3): 69-79.
28. DROSTE DW, HAGEDORN G, NOTZOLD A, SIEMENS HJ, SIEVERS HH, KAPS M: Bigated transcranial Doppler for the detection of clinically silent circulating emboli in normal persons and patients with prosthetic cardiac valves. Stroke 1997; 28: 588-592.
29. DROSTE DW, HANSBERG T, KEMENY V, ET AL: Oxygen inhalation can differentiate gaseous from nongaseous microemboli detected by transcranial Doppler ultrasound. Stroke 1997; 28: 2453-2456.
30. GEORGIADIS D, BAUMGARTNER RW, KARATSCHAI R, LINDNER A, ZERKOWSKI HR: Further evidence of gaseous embolic material in patients with artificial heart valves. J Thorac Cardiovasc Surg 1998; 115: 808-810.
31. BRAEKKEN SK, RUSSELL D, BRUCHER R, SVENNEVIG J: Incidence and frequency of cerebral embolic signals in patients with a similar bileaflet mechanical heart valve. Stroke 1995; 26: 1225-1230.