Biomedical subjects

W Schonewille

Publications and source records attributed to W Schonewille.

3 recordsLinked to original sources

PubMed2000

Cerebral microembolism in acute spontaneous internal carotid artery dissection.

The rate and risk factors for early ischemic recurrence in patients with internal carotid artery dissection (ICAD) are largely unknown. Serial transcranial Doppler (TCD) monitoring of microembolic signals (MES) was performed in 28 consecutive patients with acute ICAD. MES were identified in 13 patients, and early ischemic recurrence occurred in 7. Six of 13 patients with MES and 1 of 15 without MES experienced early ischemic recurrence (p = 0.029). MES detection on serial TCD monitoring may be associated with an increased risk of early ischemic recurrence in patients with acute ICAD.

Acute Disease↗

PubMed1998

Blood pressure and functional recovery in acute ischemic stroke.

BACKGROUND AND PURPOSE: The relevance of elevated blood pressure in acute ischemic stroke and its most appropriate management are unresolved. We aimed to evaluate the rate of functional recovery with relation to early blood pressure management in patients with ischemic stroke. METHODS: Four hundred eighty-one consecutive ischemic stroke patients were admitted to the Neurology Service within 20.9+/-10.5 hours of symptoms onset as part of the Barcelona Downtown Stroke Registry, including 235 patients who received oral antihypertensive agents within <24 hours after stroke onset. Demographic, clinical (Mathew scale), and CT scan findings were collected prospectively. Mean arterial pressure (MAP) was recorded before hospital arrival and at 7 AM on days 1, 2, and 7 of hospitalization. The primary end point was complete functional recovery at day 7 defined as a score of 0 to 1 on the modified Rankin scale. RESULTS: Two hundred fifty-two patients achieved complete recovery on day 7. Using logistic regression, independent predictors of complete recovery included mild impairment at stroke presentation, lack of history of hypertension, and absence of brain edema on CT scan. Also, a 20% to 30% drop in MAP on day 2 after stroke onset almost tripled the odds of full recovery (odds ratio, 2.9; 95% CI, 1.3 to 6.3). MAP tended to normalize after stroke in all subjects, more rapidly if hypotensive agents were administered. Brain edema was also less frequent in patients with a greater drop in blood pressure. Despite the fact that a drop in MAP >30% from baseline was observed in 49 patients, this preceded worsening stroke in only 4 patients. Conversely, worsening stroke occurred in 51 patients despite stable blood pressure. CONCLUSIONS: These results suggest that complete recovery in ischemic stroke is facilitated by a moderate blood pressure reduction when brain edema develops, most likely as the result of a more adequate cerebral perfusion pressure. Conversely, stroke worsening due to pharmacological hypoperfusion is exceptional.

Activities of Daily Living↗

PubMedDate not supplied

[Malignant catatonia].

INTRODUCTION: Malignant catatonia is thought to be due to a severely decreased central dopaminergic activity of a medical, psychiatric, toxic-pharmacologic or idiopathic origin. CLINICAL CASE: A 24 year-old man presented with a generalized tonic-clonic seizure of focal onset. Within the following 48 hours, he developed agitation and paranoid ideation, which evolved into a severe catatonic syndrome complicated by aspiration pneumonia requiring transfer to Intensive Care Unit (ICU). Complementary tests (CT scan MRI, CSF, blood and urine studies) were negative or could not provide an etiological diagnosis. Initial EEG showed theta and delta waves, originating in the right frontal regions which later generalized. He stayed in ICU for the following three months in a state of catatonic stupor with frequent medical complications. During this time, he was given 27 sessions of electroconvulsive therapy (ECT) that eventually led to a remission of the catatonic syndrome. He was discharged from hospital one month later, fully asymptomatic except for a residuary amnesia, with a final diagnosis of idiopathic malignant catatonia. CONCLUSIONS: The authors have reviewed the management of this syndrome, which can be challenging for the physician because of the wide array of possible etiologies and its potentially lethal nature. A favorable outcome can be expected when ECT is started early, provided the underlying pathological process is treatable and there are no structural lesions in the central nervous system.

Adult↗