Neurosonology in cerebral ischemia: future application of transcranial Doppler in acute stroke

Multimodal Monitoring in Large Hemispheric Infarction: Quantitative Electroencephalography Combined With Transcranial Doppler for Prognosis Prediction

Background: We aimed to explore whether transcranial Doppler (TCD) combined with quantitative electroencephalography (QEEG) can improve prognosis evaluation in patients with a large hemispheric infarction (LHI) and to establish an accurate prognosis prediction model.

Methods: We prospectively assessed 90-day mortality in patients with LHI. Brain function was monitored using TCD-QEEG at the bedside of the patient.

Results: Of the 59 (55.3 ± 10.6 years; 17 men) enrolled patients, 37 (67.3%) patients died within 90 days. The Cox regression analyses revealed that the Glasgow Coma Scale (GCS) score ≤ 8 [hazard ratio (HR), 3.228; 95% CI, 1.335–7.801; p = 0.009], TCD-terminal internal carotid artery as the offending vessel (HR, 3.830; 95% CI, 1.301–11.271; p = 0.015), and QEEG-a (delta + theta)/(alpha + beta) ratio ≥ 3 (HR, 3.647; 95% CI, 1.170–11.373; p = 0.026) independently predicted survival duration. Combining these three factors yielded an area under the receiver operating characteristic curve of 0.905 and had better predictive accuracy than those of individual variables (p < 0.05).

Conclusion: TCD and QEEG complement the GCS score to create a reliable multimodal method for monitoring prognosis in patients with LHI.

Clinical Characteristics and Lifestyle Behaviors in a Population-Based Sample of Chinese and South Asian Immigrants With Hypertension

BACKGROUND

Asian Americans are the fastest growing racial/ethnic group in the United States. Chinese Americans and their counterparts in Chinese countries have been shown to have an elevated risk of stroke compared to non-Hispanic Whites, while South Asian Americans and their counterparts in South Asian countries have an elevated risk of heart disease. Exactly how cardiovascular disease morbidity varies by Asian subgroup, however, is not well understood. The purpose of this analysis was to identify differences in clinical presentation and lifestyle behaviors between Chinese and South Asian American immigrants vs. non-Hispanic Whites in a representative sample of adults with self-report of physician-diagnosed hypertension.

METHODS

Data on adults with self-reported hypertension were obtained from the New York City Community Health Survey 2009-2013 (Chinese: n = 555; South Asian: n = 144; non-Hispanic White: n = 5,987).

RESULTS

Compared to non-Hispanic Whites with hypertension, foreign-born Chinese adults with hypertension were of a much lower socioeconomic profile and less likely to have private health insurance, and foreign-born Chinese and South Asian adults with hypertension had lower body mass index (BMI) values (25.3, 26.0 vs. 28.7kg/m(2); P < 0.001). South Asians were younger than non-Hispanic Whites (mean age: 49.5 vs. 62.1 years; P < 0.001) and had poorer diet quality. BMI and diet quality results persisted in multivariable regression models.

CONCLUSIONS

Findings from this study highlight important clinical distinctions in hypertensive Chinese and South Asian immigrant communities with respect to age and body size. Whether targeted and culturally appropriate approaches would reduce cardiovascular disease-related mortality in these groups needs further study.

Spontaneous Recanalization of Acute Internal Carotid Artery Occlusion

Little is known about the natural course of internal carotid artery occlusion and its possible recanalization. We present here a case of spontaneous recanalization of an acutely occluded internal carotid artery, angiographically reported, which later allowed the patient to benefit from surgical treatment. These and other similar cases raise the possibility of a more frequent recanalization of this artery than previously considered. We suggest routine follow-up of these patients to detect this eventuality, which could influence clinical outcome and secondary prophylaxis strategies.