Background:
Despite the well-established potent benefit of mechanical thrombectomy (MT) for large vessel occlusion (LVO) stroke, access to MT has not been studied globally. We conducted a worldwide survey of countries on 6 continents to define MT access (MTA), the disparities in MTA, and its determinants on a global scale.
Methods:
Our survey was conducted in 75 countries through the Mission Thrombectomy 2020+ global network between November 22, 2020, and February 28, 2021. The primary end points were the current annual MTA, MT operator availability, and MT center availability. MTA was defined as the estimated proportion of patients with LVO receiving MT in a given region annually. The availability metrics were defined as ([current MT operators×50/current annual number of estimated thrombectomy-eligible LVOs]×100 = MT operator availability) and ([current MT centers×150/current annual number of estimated thrombectomy-eligible LVOs]×100= MT center availability). The metrics used optimal MT volume per operator as 50 and an optimal MT volume per center as 150. Multivariable-adjusted generalized linear models were used to evaluate factors associated with MTA.
Results:
We received 887 responses from 67 countries. The median global MTA was 2.79% (interquartile range, 0.70–11.74). MTA was <1.0% for 18 (27%) countries and 0 for 7 (10%) countries. There was a 460-fold disparity between the highest and lowest nonzero MTA regions and low-income countries had 88% lower MTA compared with high-income countries. The global MT operator availability was 16.5% of optimal and the MT center availability was 20.8% of optimal. On multivariable regression, country income level (low or lower–middle versus high: odds ratio, 0.08 [95% CI, 0.04–0.12]), MT operator availability (odds ratio, 3.35 [95% CI, 2.07–5.42]), MT center availability (odds ratio, 2.86 [95% CI, 1.84–4.48]), and presence of prehospital acute stroke bypass protocol (odds ratio, 4.00 [95% CI, 1.70–9.42]) were significantly associated with increased odds of MTA.
Conclusions:
Access to MT on a global level is extremely low, with enormous disparities between countries by income level. The significant determinants of MT access are the country’s per capita gross national income, prehospital LVO triage policy, and MT operator and center availability.
Juvenile myoclonic epilepsy is a clinically well-defined, age-related common idiopathic generalized epilepsy syndrome with substantial genetic basis to its etiology. We report identification of a novel epilepsy locus at chromosome 5q12-q14 in a family exhibiting autosomal dominant form of juvenile myoclonic epilepsy from south India. The highest two-point LOD score of 3.3344 was obtained for the microsatellite markers D5S641 and D5S459 at 5q14. Centromeric and telomeric chromosomal boundaries of the locus were defined by D5S624 and D5S428, respectively. The 5q12-q14 locus encompasses about 25 megabases of the genomic region and harbours several candidate genes. Further work involving a detailed mutational analysis of the locus, to isolate the gene responsible for the epilepsy disorder in the family, shall help enhance our understanding of molecular basis of epilepsy disorders.
Recent data have provided overwhelming evidence in favor of benefits of emergent endovascular intervention in large vessel acute ischemic stroke (AIS). India with its large population has a huge burden of AIS. Hence, neurologists need to gear up to the new challenge of providing interventional care to huge populations of AIS in the country. The best way to cover this unprecedented unmet need is to encourage neurologists to take up interventional subspecialty interests through new but sound training pathways.
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