Usefulness of transesophageal echocardiography in unexplained cerebral ischemia

Labovitz, Arthur J.; Camp, Alan; Castelló, Ramón; Martin, Timothy J.; Ofili, Elizabeth; Rickmeyer, Nancy; Vaughn, Michele; Gomez, Camilo R.

doi:10.1016/0002-9149(93)90195-i

Cited by 43 publications

(19 citation statements)

References 26 publications

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“…A right to left shunt was detected by TCD contrast studies in 60 patients (28%), 33 (24 6%) in men and 27 (35-5%) in women; mean age was 61 (range 12-86) years. The appearance of the high intensity transient signals on TCD occurred within 20 seconds in all patients.…”

Section: Resultsmentioning

confidence: 97%

Transcranial Doppler ultrasonography in the detection of venous to arterial shunting in acute stroke and transient ischaemic attacks.

Yeung

Khan

Shuaib

1996

Journal of Neurology, Neurosurgery & Psychiatry

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Objectives-To prospectively evaluate the prevalence of venous to arterial shunting in patients with acute stroke and transient ischaemic attacks (TIAs) using transcranial Doppler ultrasonography (TCD) with saline contrast. Methods-A consecutive series of patients with stroke or TIA underwent contrast TCD. Patients were subsequently divided into groups according to causative factors for stroke or TIA. The prevalence of right to left shunt was assessed within these groups. Results-A total of 210 patients underwent contrast TCD. A right to left shunt was detected in 28-6% of patients (60 of 210). Among the patients with cryptogenic stroke or TIA, 37-1% (43 of 116) had a positive contrast TCD whereas only 18% (17 of 94) with another identifiable cause had a positive test (P = 0.0024). When age was used to further classify those patients with cryptogenic stroke, TCD was positive in 59 3% patients (16 of 27) of < 50 years of age versus 30 3% of patients (27 of 89) > 50 years of age (P = 0.0058). Conclusions-There was a significantly higher prevalence of venous to arterial shunting in patients with stroke or TIA of undetermined cause than in stroke patients with identifiable aetiologies, as detected by contrast TCD. The prevalence of a venous to arterial shunt was significantly higher in the younger group with cryptogenic stroke. Saline contrast TCD is a relatively non-invasive bedside procedure useful in the detection of venous to arterial shunting.

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Section: Resultsmentioning

confidence: 97%

Transcranial Doppler ultrasonography in the detection of venous to arterial shunting in acute stroke and transient ischaemic attacks.

Yeung

Khan

Shuaib

1996

Journal of Neurology, Neurosurgery & Psychiatry

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“…A total of 260 articles were identified in the initial search, of which 27 (n = 5,653) met our eligibility criteria, [23][24][25][26][27][28][29][30][31][32][33][34][35][36][38][39][40][41]7,[42][43][44][45]11,[46][47][48][49][50][51][52] including 18 subcohorts in group A (b55 years, n = 2,360) and 20 subcohorts in group B (≥55 years or age unselected, n = 3,293). online Appendix Supplementary Table II summarizes the characteristics of the study populations.…”

Section: Resultsmentioning

confidence: 99%

Transesophageal echocardiography in patients with cryptogenic ischemic stroke: A systematic review

McGrath

Paikin

Motlagh

et al. 2014

American Heart Journal

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“…69 -73 The prevalence of ASA is greater among patients with embolic events. 7,71,[73][74][75] It is also well known that ASA is associated with PFO, with Ϸ60% of patients with ASA having a PFO (Table 4). 57,59,69,71,72,76 -79 Additionally, the PFOs seen in the presence of ASA tend to be large compared with those seen without associated ASA.…”

Section: Atrial Septal Aneurysmmentioning

confidence: 99%