@article {8986, title = {Clonal Hematopoiesis Is Associated With Higher Risk of Stroke.}, journal = {Stroke}, volume = {53}, year = {2022}, month = {2022 Mar}, pages = {788-797}, abstract = {

BACKGROUND AND PURPOSE: Clonal hematopoiesis of indeterminate potential (CHIP) is a novel age-related risk factor for cardiovascular disease-related morbidity and mortality. The association of CHIP with risk of incident ischemic stroke was reported previously in an exploratory analysis including a small number of incident stroke cases without replication and lack of stroke subphenotyping. The purpose of this study was to discover whether CHIP is a risk factor for ischemic or hemorrhagic stroke.

METHODS: We utilized plasma genome sequence data of blood DNA to identify CHIP in 78 752 individuals from 8 prospective cohorts and biobanks. We then assessed the association of CHIP and commonly mutated individual CHIP driver genes (, , and ) with any stroke, ischemic stroke, and hemorrhagic stroke.

RESULTS: CHIP was associated with an increased risk of total stroke (hazard ratio, 1.14 [95\% CI, 1.03-1.27]; =0.01) after adjustment for age, sex, and race. We observed associations with CHIP with risk of hemorrhagic stroke (hazard ratio, 1.24 [95\% CI, 1.01-1.51]; =0.04) and with small vessel ischemic stroke subtypes. In gene-specific association results, showed the strongest association with total stroke and ischemic stroke, whereas and were each associated with increased risk of hemorrhagic stroke.

CONCLUSIONS: CHIP is associated with an increased risk of stroke, particularly with hemorrhagic and small vessel ischemic stroke. Future studies clarifying the relationship between CHIP and subtypes of stroke are needed.

}, issn = {1524-4628}, doi = {10.1161/STROKEAHA.121.037388}, author = {Bhattacharya, Romit and Zekavat, Seyedeh M and Haessler, Jeffrey and Fornage, Myriam and Raffield, Laura and Uddin, Md Mesbah and Bick, Alexander G and Niroula, Abhishek and Yu, Bing and Gibson, Christopher and Griffin, Gabriel and Morrison, Alanna C and Psaty, Bruce M and Longstreth, William T and Bis, Joshua C and Rich, Stephen S and Rotter, Jerome I and Tracy, Russell P and Correa, Adolfo and Seshadri, Sudha and Johnson, Andrew and Collins, Jason M and Hayden, Kathleen M and Madsen, Tracy E and Ballantyne, Christie M and Jaiswal, Siddhartha and Ebert, Benjamin L and Kooperberg, Charles and Manson, JoAnn E and Whitsel, Eric A and Natarajan, Pradeep and Reiner, Alexander P} }