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Toruno MA, Al-Janabi OM, Ghozy S, Kobeissi H, Kadirvel R, Rabinstein AA, Kallmes DF. Outcomes of mechanical thrombectomy in patients with acute ischemic stroke and thrombocytopenia: systematic review and meta-analysis. J Neurol 2024; 271:4383-4391. [PMID: 38658432 DOI: 10.1007/s00415-024-12363-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/27/2024] [Accepted: 04/01/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Mechanical Thrombectomy (MT) has improved outcomes in acute ischemic stroke (AIS) due to Large Vessel Obstruction (LVO). However, there is limited data on the safety and outcomes of MT in AIS patients with thrombocytopenia. This study aims to assess the efficacy and safety of MT in this population. METHODS Following the PRISMA guidelines, a comprehensive systematic review was conducted using PubMed, Embase, Web of Science, and Scopus. Studies meeting inclusion criteria underwent rigorous risk of bias assessment using the ROBINS-I tool. We compared outcomes between patients with and without thrombocytopenia undergoing MT. Using the R software version 4.3.1, meta-analyses were conducted employing random-effect models. RESULTS This meta-analysis encompassed data from 5 studies. Thrombocytopenic AIS patients who underwent MT (n = 974) exhibited lower rates of functional independence (OR 0.83, 95% CI 0.71-0.98; p = 0.030) compared to patients with normal platelet counts (n = 2036). In addition, the thrombocytopenic group experienced higher mortality as compared to the group with normal platelet counts (OR 1.76, 95% CI 1.26-2.45; p < 0.001). Rates of sICH were found to be similar between groups (OR 1.20, 95% CI 0.74-1.93; p = 0.456), as were rates of successful recanalization (OR 0.94, 95% CI 0.47-1.87; p = 0.863). Lastly, no significant differences were observed in procedure times between thrombocytopenic and non-thrombocytopenic groups. CONCLUSION As compared to patients without thrombocytopenia, thrombocytopenic AIS patients undergoing MT displayed lower functional independence and higher mortality rates, with no significant differences in sICH or successful recanalization.
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Affiliation(s)
| | - Omar M Al-Janabi
- Department of Neurology, Banner-University Medical Center, Tucson, AZ, USA
| | - Shereif Ghozy
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
| | | | - Ramanathan Kadirvel
- Department of Radiology, Mayo Clinic, Rochester, MN, USA
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
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Fujiwara S, Sakai N, Imamura H, Ohara N, Tanaka K, Yamagami H, Matsumoto Y, Takeuchi M, Uchida K, Yoshimura S, Morimoto T. Impact of thrombocytopenia on hemorrhagic complications after endovascular therapy for acute large vessel occlusion: Sub-analysis of RESCUE-Japan registry 2. J Neurol Sci 2023; 449:120659. [PMID: 37079972 DOI: 10.1016/j.jns.2023.120659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/14/2023] [Accepted: 04/10/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND Endovascular treatment (EVT) for patients with large vessel occlusion (LVO) and concurrent thrombocytopenia raises concerns about hemorrhagic complications. We examined the association between thrombocytopenia and clinical outcomes after EVT. METHODS This is a sub-analysis of the RESCUE-Japan Registry 2, a nationwide registry that enrolled 2420 consecutive acute LVO patients. We evaluated the clinical outcomes in patients who underwent EVT according to their platelet count on admission (Moderate/Severe, < 100 × 109 /L; Mild, 100 to ≤150 × 109/L; Normal, ≥ 150 × 109/L). The outcomes included any and symptomatic intracranial hemorrhage (ICH) after EVT, and modified Rankin Scale (mRS) at 90 days. RESULTS Of 1268 patients who underwent EVT, the Moderate/Severe and Mild groups consisted of 41 (3.2%), and 193 (15.2%) patients. Any ICH occurred in 37%, 35%, and 24% of Moderate/Severe, Mild, and Normal group patients, respectively, and the adjusted ORs (95% CIs) were 1.50 (0.71-3.18) for Moderate/Severe and 1.87 (1.28-2.73) for Mild, compared to the Normal group (p for trend = 0.004). Symptomatic ICH increased with the severity of thrombocytopenia (9.8% vs 3.6% vs 2.1%), and adjusted ORs were 4.43 (1.16-17.0) in Moderate/Severe and 1.85 (0.71-4.86) in Mild (p for trend = 0.10). Mortality was significantly associated with the severity of thrombocytopenia (p for trend = 0.005), and adjusted ORs were 3.26 (1.29-8.26) in the Moderate/Severe and 2.76 (1.58-4.84) in the Mild groups. CONCLUSIONS Thrombocytopenia in LVO patients was not rare and associated with the incidence and manifestation of ICH after EVT.
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Affiliation(s)
- Satoru Fujiwara
- Department of Neurology, Kobe City Medical Center General Hospital, Kobe, Japan; Department of Clinical Epidemiology, Hyogo Medical University, Nishinomiya, Japan
| | - Nobuyuki Sakai
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Hirotoshi Imamura
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan; Division of Neurosurgery, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Nobuyuki Ohara
- Department of Neurology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Kanta Tanaka
- Division of Stroke Care Unit, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Hiroshi Yamagami
- Department of Stroke Neurology, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Yasushi Matsumoto
- Department of Neuroendovascular Therapy, Kohnan Hospital, Sendai, Japan
| | | | - Kazutaka Uchida
- Department of Clinical Epidemiology, Hyogo Medical University, Nishinomiya, Japan; Department of Neurosurgery, Hyogo Medical University, Nishinomiya, Japan
| | - Shinichi Yoshimura
- Department of Neurosurgery, Hyogo Medical University, Nishinomiya, Japan
| | - Takeshi Morimoto
- Department of Clinical Epidemiology, Hyogo Medical University, Nishinomiya, Japan.
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Xu T, Zhou Y, Wu X, Zhou H, Zhang Y, Yu C, He S, Lv M, Yang P, Zhang Y, Xing P, Zhang L, Ye X, Peng Y, Liu S, Zhang L, Zhu Q, Ke K, Liu J. Platelet count and clinical outcomes among ischemic stroke patients with endovascular thrombectomy in DIRECT-MT. Clin Chem Lab Med 2022; 60:1675-1682. [PMID: 35938913 DOI: 10.1515/cclm-2022-0317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/11/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The prognostic role of baseline platelet count (PLT) in acute ischemic stroke patients with large vessel occlusion undergoing endovascular thrombectomy is unclear. Whether PLT modifies alteplase treatment effect on clinical outcome in those patients is also uncertain. METHODS We derived data from a multicenter randomized clinical trial (DIRECT-MT) comparing intravenous alteplase before endovascular treatment vs. endovascular treatment only. The 654 patients with available PLT data were included. Primary outcome was the ordinal modified Rankin Scale (mRS) score evaluated at 90 days. We also assessed various secondary and safety outcomes. RESULTS After adjusting for confounding factors, patients in the top tertile of PLT had a significantly lower risk of a worse shift in the distribution of mRS score (Odds Ratio: 0.671, 95% Confidence Interval: 0.473-0.953, p for trend=0.025), major disability and death (Odds Ratio: 0.617, 95% Confidence Interval: 0.393-0.97, p for trend=0.037) as well as death (Odds Ratio: 0.544, 95% Confidence Interval: 0.313-0.947, p for trend=0.031), respectively, compared with the bottom one. Among patients in the bottom tertile of PLT, combination therapy was associated with a better imaging outcome of eTICI score of 2b, 2c or 3 on final angiogram (Odds Ratio: 3.23, 95% Confidence Interval: 1.49-7.002) with a marginally significant interaction effect. CONCLUSIONS Participants with higher baseline PLT had a decreased risk of poor functional outcomes. Low baseline PLT modified alteplase treatment effect on the eTICI score on final angiogram. Combination therapy was beneficial for patients with low baseline PLT to have a better reperfusion status.
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Affiliation(s)
- Tian Xu
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, P.R. China
| | - Yu Zhou
- Department of Neurosurgery, Naval Medical University Changhai Hospital, Shanghai, P.R. China
| | - Xinmin Wu
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, P.R. China
| | - Hongzhi Zhou
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, P.R. China
| | - Yunfeng Zhang
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, P.R. China
| | - Chao Yu
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, P.R. China
| | - Shuang He
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, P.R. China
| | - Meiyun Lv
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, P.R. China
| | - Pengfei Yang
- Department of Neurosurgery, Naval Medical University Changhai Hospital, Shanghai, P.R. China
| | - Yongwei Zhang
- Department of Neurology, Naval Medical University Changhai hospital, Shanghai, P.R. China
| | - Pengfei Xing
- Department of Neurology, Naval Medical University Changhai hospital, Shanghai, P.R. China
| | - Lei Zhang
- Department of Neurosurgery, Naval Medical University Changhai Hospital, Shanghai, P.R. China
| | - Xiaofei Ye
- Department of Statistics, Naval Medical University, Shanghai, P.R. China
| | - Ya Peng
- Department of Neurosurgery, Third Affiliated Hospital of Soochow University, Changzhou, P.R. China
| | - Sheng Liu
- Department of Radiology, Jiangsu Provincial People's Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Liyong Zhang
- Department of Neurosurgery, Liaocheng People's Hospital of Shandong First Medical University, Liaocheng, P.R. China
| | - Qiyi Zhu
- Department of Neurology, Linyi People's Hospital of Qingdao University, Linyi, P.R. China
| | - Kaifu Ke
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, P.R. China
| | - Jianmin Liu
- Department of Neurosurgery, Naval Medical University Changhai Hospital, Shanghai, P.R. China
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EHA Guidelines on Management of Antithrombotic Treatments in Thrombocytopenic Patients With Cancer. Hemasphere 2022; 6:e750. [PMID: 35924068 PMCID: PMC9281983 DOI: 10.1097/hs9.0000000000000750] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/01/2022] [Indexed: 01/19/2023] Open
Abstract
In cancer patients, thrombocytopenia can result from bone marrow infiltration or from anticancer medications and represents an important limitation for the use of antithrombotic treatments, including anticoagulant, antiplatelet, and fibrinolytic agents. These drugs are often required for prevention or treatment of cancer-associated thrombosis or for cardioembolic prevention in atrial fibrillation in an increasingly older cancer population. Data indicate that cancer remains an independent risk factor for thrombosis even in case of thrombocytopenia, since mild-to-moderate thrombocytopenia does not protect against arterial or venous thrombosis. In addition, cancer patients are at increased risk of antithrombotic drug-associated bleeding, further complicated by thrombocytopenia and acquired hemostatic defects. Furthermore, some anticancer treatments are associated with increased thrombotic risk and may generate interactions affecting the effectiveness or safety of antithrombotic drugs. In this complex scenario, the European Hematology Association in collaboration with the European Society of Cardiology has produced this scientific document to provide a clinical practice guideline to help clinicians in the management of patients with cancer and thrombocytopenia. The Guidelines focus on adult patients with active cancer and a clear indication for anticoagulation, single or dual antiplatelet therapy, their combination, or reperfusion therapy, who have concurrent thrombocytopenia because of either malignancy or anticancer medications. The level of evidence and the strength of the recommendations were discussed according to a Delphi procedure and graded according to the Oxford Centre for Evidence-Based Medicine.
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Zhao X, Niu Q, Gan L, Hou FF, Liang X, Ni Z, Chen X, Chen Y, McCullough K, Robinson B, Zuo L. Thrombocytopenia predicts mortality in Chinese hemodialysis patients- an analysis of the China DOPPS. BMC Nephrol 2022; 23:11. [PMID: 34979949 PMCID: PMC8722075 DOI: 10.1186/s12882-021-02579-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 10/22/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Hemodialysis (HD) patients have a higher mortality rate compared with general population. Our previous study revealed that platelet counts might be a potential risk factor. The role of platelets in HD patients has rarely been studied. The aim of this study is to examine if there is an association of thrombocytopenia (TP) with elevated risk of all-cause mortality and cardiovascular (CV) death in Chinese HD patients. METHODS Data from a prospective cohort study, China Dialysis Outcomes and Practice Patterns Study (DOPPS) 5, were analyzed. Demographic data, comorbidities, platelet counts and other lab data, and death records which extracted from the medical record were analyzed. TP was defined as the platelet count below the lower normal limit (< 100*109/L). Associations between platelet counts and all-cause and CV mortality were evaluated using Cox regression models. Stepwise multivariate logistic regression was used to identify the independent associated factors, and subgroup analyses were also carried out. RESULTS Of 1369 patients, 11.2% (154) had TP at enrollment. The all-cause mortality rates were 26.0% vs. 13.3% (p < 0.001) in patients with and without TP. TP was associated with higher all-cause mortality after adjusted for covariates (HR:1.73,95%CI:1.11,2.71), but was not associated with CV death after fully adjusted (HR:1.71,95%CI:0.88,3.33). Multivariate logistic regression showed that urine output < 200 ml/day, cerebrovascular disease, hepatitis (B or C), and white blood cells were independent impact factors (P < 0.05). Subgroup analysis found that the effect of TP on all-cause mortality was more prominent in patients with diabetes or hypertension, who on dialysis thrice a week, with lower ALB (< 4 g/dl) or higher hemoglobin, and patients without congestive heart failure, cerebrovascular disease, or hepatitis (P < 0.05). CONCLUSION In Chinese HD patients, TP is associated with higher risk of all-cause mortality, but not cardiovascular mortality. Platelet counts may be a useful prognostic marker for clinical outcomes among HD patients, though additional study is needed.
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Affiliation(s)
- Xinju Zhao
- Department of Nephrology, Peking University People's Hospital, Unit 10C in Ward Building; 11 Xizhimennan Street, Xicheng District, Beijing, 100044, China
| | - Qingyu Niu
- Department of Nephrology, Peking University People's Hospital, Unit 10C in Ward Building; 11 Xizhimennan Street, Xicheng District, Beijing, 100044, China
| | - Liangying Gan
- Department of Nephrology, Peking University People's Hospital, Unit 10C in Ward Building; 11 Xizhimennan Street, Xicheng District, Beijing, 100044, China
| | - Fan Fan Hou
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center of Kidney Disease, State Key Laboratory of Organ Failure Research, 1838 North Guangzhou Avenue, Guangzhou, China
| | - Xinling Liang
- Division of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhaohui Ni
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Xiaonong Chen
- Division of Nephrology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yuqing Chen
- Renal Division, Peking University First Hospital, Beijing, China
| | | | - Bruce Robinson
- Arbor Research Collaborative for Health, Ann Arbor, MI, USA
| | - Li Zuo
- Department of Nephrology, Peking University People's Hospital, Unit 10C in Ward Building; 11 Xizhimennan Street, Xicheng District, Beijing, 100044, China.
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Ždraljević M, Pekmezović T, Stanarčević P, Vukašinović I, Berisavac I, Ercegovac M, Vitošević F, Nestorović D, Cvetić V, Padjen V, Budimkić MS, Medjedović TŠ, Jovanović DR. Influence of Thrombocytopenia on the Outcome of Mechanical Thrombectomy in Patients with Acute Ischemic Stroke. J Stroke Cerebrovasc Dis 2021; 31:106240. [PMID: 34915307 DOI: 10.1016/j.jstrokecerebrovasdis.2021.106240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/08/2021] [Accepted: 11/21/2021] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES Mechanical thrombectomy (MT) has become leading treatment option for acute ischemic stroke (AIS) due to large vessels occlusion (LVO). Platelet counts may affect outcome in patients with AIS or transient ischemic attack. The aim of our study was to determine the influence of thrombocytopenia on the safety and efficacy of MT in patients with AIS due to anterior circulation LVO. MATERIALS AND METHODS This study included 127 consecutive adult patients with AIS due to anterior circulation LVO who underwent MT. The patients were divided into 2 groups based on initial platelet count: with thrombocytopenia (<150 × 109/L) and without thrombocytopenia (≥150 × 109/L). Primary safety outcome was symptomatic intracerebral haemorrhage (SICH), while secondary safety outcome was stroke-related mortality. Efficacy outcome was functional independence, defined as modified Rankin Scale (mRS) score 0-2. Follow- up time was 90 days. RESULTS Initial thrombocytopenia (<150 × 109/L) was detected in 19 (15%) patients. Multivariable analysis showed that initial thrombocytopenia did not increase the risk of SICH and did not affect the short-term functional outcome (p = 0.587). However, initial thrombocytopenia increased the risk for stroke-related mortality (aOR 3.639, 95% CI 1.079-12.641, p = 0.037). The main cause of mortality in the group with thrombocytopenia was malignant cerebral infarction (44.4%). CONCLUSIONS Thrombocytopenia does not affect the efficacy and the risk of SICH in patients with AIS caused by anterior circulation LVO treated with MT. However, the risk of mortality is higher in patients with thrombocytopenia, mainly due to malignant cerebral infarction.
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Affiliation(s)
- Mirjana Ždraljević
- Neurology Clinic, University Clinical Center of Serbia, Dr Subotica Street 6, 11 000 Belgrade, Serbia
| | - Tatjana Pekmezović
- Institute of Epidemiology, Faculty of Medicine, Višegradska Street 26, 11 000 Belgrade, Serbia
| | - Predrag Stanarčević
- Neurology Clinic, University Clinical Center of Serbia, Dr Subotica Street 6, 11 000 Belgrade, Serbia; Faculty of Medicine, Dr Subotica Street 8, 11 000 Belgrade, Serbia
| | - Ivan Vukašinović
- Center for Radiology and MRI, Clinic for Neurosurgery, University Clinical Center of Serbia, Pasterova 2, 11000 Belgrade, Serbia
| | - Ivana Berisavac
- Neurology Clinic, University Clinical Center of Serbia, Dr Subotica Street 6, 11 000 Belgrade, Serbia; Faculty of Medicine, Dr Subotica Street 8, 11 000 Belgrade, Serbia
| | - Marko Ercegovac
- Neurology Clinic, University Clinical Center of Serbia, Dr Subotica Street 6, 11 000 Belgrade, Serbia; Faculty of Medicine, Dr Subotica Street 8, 11 000 Belgrade, Serbia
| | - Filip Vitošević
- Center for Radiology and MRI, Clinic for Neurosurgery, University Clinical Center of Serbia, Pasterova 2, 11000 Belgrade, Serbia
| | - Dragoslav Nestorović
- Center for Radiology and MRI, Clinic for Neurosurgery, University Clinical Center of Serbia, Pasterova 2, 11000 Belgrade, Serbia
| | - Vladimir Cvetić
- Faculty of Medicine, Dr Subotica Street 8, 11 000 Belgrade, Serbia; Clinic for Vascular and Endovascular Surgery, University Clinical Center of Serbia, Dr Koste Todorovića Street 6, 11 000 Belgrade, Serbia
| | - Višnja Padjen
- Neurology Clinic, University Clinical Center of Serbia, Dr Subotica Street 6, 11 000 Belgrade, Serbia; Faculty of Medicine, Dr Subotica Street 8, 11 000 Belgrade, Serbia
| | - Maja Stefanović- Budimkić
- Neurology Clinic, University Clinical Center of Serbia, Dr Subotica Street 6, 11 000 Belgrade, Serbia
| | - Tamara Švabić Medjedović
- Neurology Clinic, University Clinical Center of Serbia, Dr Subotica Street 6, 11 000 Belgrade, Serbia
| | - Dejana R Jovanović
- Neurology Clinic, University Clinical Center of Serbia, Dr Subotica Street 6, 11 000 Belgrade, Serbia; Faculty of Medicine, Dr Subotica Street 8, 11 000 Belgrade, Serbia.
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Lin C, Pan H, Qiao Y, Huang P, Su J, Liu J. Fibrinogen Level Combined With Platelet Count for Predicting Hemorrhagic Transformation in Acute Ischemic Stroke Patients Treated With Mechanical Thrombectomy. Front Neurol 2021; 12:716020. [PMID: 34531815 PMCID: PMC8439152 DOI: 10.3389/fneur.2021.716020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/04/2021] [Indexed: 12/02/2022] Open
Abstract
A serious complication of acute ischemic stroke (AIS) after mechanical thrombectomy (MT) is hemorrhagic transformation (HT), which is potentially associated with clinical deterioration. This study examined predictors of HT following MT in AIS patients. Patients with AIS due to large artery occlusion in the anterior circulation, treated with MT and successfully recanalized (modified Thrombolysis in Cerebral Infarction score 2b/3), were studied retrospectively. HT was evaluated by computed tomography (CT) 24 h after MT and was diagnosed and classified into parenchymal hematoma (PH) and hemorrhagic infarction (HI). Multivariate logistic regression models were used to determine the risk factors for HT. Receiver operating characteristic (ROC) curve analysis was performed to determine the predictive utility of risk factors for HT. We enrolled 135 patients: 49 in the HT group and 86 in the non-HT group. The two groups differed significantly in baseline fibrinogen levels (p = 0.003) and platelet counts (p = 0.006). Multivariate logistic regression analyses showed that lower fibrinogen levels [odds ratio (OR), 0.41; 95% CI, 0.23–0.72; p = 0.002] and platelet counts (OR, 0.58; 95% CI, 0.33–0.99; p = 0.048) were independently associated with a higher risk of HT. Together, the binary variates fibrinogen and platelets well-predicted HT (area under the curve, 0.703; specificity, 77.9%; sensitivity, 55.1%). The combination of fibrinogen <2.165 g/L and platelets <171.5 × 109/L was the strongest predictor of HT (OR, 23.17; 95% CI, 5.75–126.80; p < 0.0001). Our study suggests that lower baseline fibrinogen levels and platelet counts may be risk factors for HT in AIS patients following MT and reperfusion. Specifically, the combination of fibrinogen level and platelet count may predict the risk of HT after MT in these patients.
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Affiliation(s)
- Changchun Lin
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Pan
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuan Qiao
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peisheng Huang
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jingjing Su
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianren Liu
- Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Al-Mufti F, Schirmer CM, Starke RM, Chaudhary N, De Leacy R, Tjoumakaris SI, Haranhalli N, Abecassis IJ, Amuluru K, Bulsara KR, Hetts SW. Thrombectomy in special populations: report of the Society of NeuroInterventional Surgery Standards and Guidelines Committee. J Neurointerv Surg 2021; 14:1033-1041. [PMID: 34244337 DOI: 10.1136/neurintsurg-2021-017888] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 06/22/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND The purpose of this guideline is to summarize the data available for performing mechanical thrombectomy (MT) for emergent large vessel occlusion (ELVO) stroke in special populations not typically included in large randomized controlled clinical trials, including children, the elderly, pregnant women, patients who have recently undergone surgery, and patients with thrombocytopenia, collagen vascular disorders, and endocarditis. METHODS We performed a literature review for studies examining the indications, efficacy, and outcomes for patients undergoing MT for ischemic stroke aged <18 years and >80 years, pregnant patients, patients who have recently undergone surgery, and those with thrombocytopenia, collagen vascular diseases, or endocarditis. We graded the quality of the evidence. RESULTS MT can be effective for the treatment of ELVO in ischemic stroke for patients over age 80 years and under age 18 years, thrombocytopenic patients, pregnant patients, and patients with endocarditis. While outcomes are worse compared to younger patients and those with normal platelet counts (respectively), there is still a benefit in the elderly (in both mRS and mortality). Data are very limited for patients with collagen vascular diseases; although diagnostic cerebral angiography carries increased risks, MT may be appropriate in carefully selected patients in whom untreated ELVO would likely result in disabling or fatal outcome.
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Affiliation(s)
- Fawaz Al-Mufti
- Department of Neurology and Neurosurgery, Westchester Medical Center, Valhalla, New York, USA
| | - Clemens M Schirmer
- Department of Neurosurgery, Geisinger Health System, Wilkes-Barre, Pennsylvania, USA
| | - Robert M Starke
- Department of Neurosurgery & Radiology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Neeraj Chaudhary
- Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Reade De Leacy
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Stavropoula I Tjoumakaris
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Neil Haranhalli
- Department of Neurosurgery, Montefiore Hospital and Medical Center, Bronx, New York, USA
| | - Isaac Josh Abecassis
- Department of Neurological Surgery, University of Miami School of Medicine, Miami, Florida, USA.,Department of Neurological Surgery, University of Washington, Seattle, Washington, USA
| | - Krishna Amuluru
- Department of Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, Indiana, USA
| | - Ketan R Bulsara
- Division of Neurosurgery, University of Connecticut, Farmington, Connecticut, USA
| | - Steven W Hetts
- Department of Radiology, UCSF, San Francisco, California, USA
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9
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Venditti L, Chassin O, Ancelet C, Legris N, Sarov M, Lapergue B, Mihalea C, Ozanne A, Gallas S, Cortese J, Chalumeau V, Ikka L, Caroff J, Labreuche J, Spelle L, Denier C. Pre-procedural predictive factors of symptomatic intracranial hemorrhage after thrombectomy in stroke. J Neurol 2021; 268:1867-1875. [PMID: 33389028 DOI: 10.1007/s00415-020-10364-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Symptomatic intracerebral hemorrhage (sICH) is a common complication of acute ischemic stroke (AIS) associated with limited treatments and poor outcomes. We aimed to identify predictive factors of sICH in patients with AIS following mechanical thrombectomy (MT) in a real-world setting. METHODS Patients with large vessel occlusion of the anterior circulation treated with MT were consecutively included in a prospective monocentric cohort. Clinical, biological, and radiological parameters were collected to identify pre-procedural predictors for sICH. RESULTS 637 patients were included in our study. Magnetic resonance imaging was performed on most patients (86.7%). sICH occurred in 55 patients (8.6%). 428 patients (67.2%) were treated with intravenous thrombolysis. After multivariate analysis, prior use of antiplatelet therapies (odd ratio (OR) 1.84, 95% confidence interval (CI) 1.01-3.32), high C-reactive protein (OR per standard deviation (SD) increase 1.28, 95% 1.01-1.63), elevated mean arterial blood pressure (OR per 10 mmHg increase 1.22, 95% CI 1.03-1.44), hyperglycemia (OR per one SD-log increase 1.38, 95% CI 1.02-1.87), and low ASPECTS (OR per 1-point decrease 1.42, 95% CI 1.12-1.80) were found to be independent predictive factors of sICH. The pre-procedural predictors did not change when the absence of successful recanalization was considered as a covariate. Patients with strokes of unknown onset time were not especially vulnerable for sICH. CONCLUSION sICH after MT was associated with several pre-procedural risk factors: prior use of antiplatelet therapies, high C-reactive protein and hyperglycemia at baseline, elevated mean arterial blood pressure, and low ASPECTS.
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Affiliation(s)
- Laura Venditti
- Department of Neurology, Hôpital Bicêtre, Stroke Center, 78 rue du General Leclerc, 94270, Le Kremlin Bicêtre, France
| | - Olivier Chassin
- Department of Neurology, Hôpital Bicêtre, Stroke Center, 78 rue du General Leclerc, 94270, Le Kremlin Bicêtre, France
| | - Claire Ancelet
- Neuroradiology, Faculté Paris-Saclay, Bicêtre Hôpitaux Universitaires Paris Sud, Le Kremlin-Bicêtre, France
| | - Nicolas Legris
- Department of Neurology, Hôpital Bicêtre, Stroke Center, 78 rue du General Leclerc, 94270, Le Kremlin Bicêtre, France
| | - Mariana Sarov
- Department of Neurology, Hôpital Bicêtre, Stroke Center, 78 rue du General Leclerc, 94270, Le Kremlin Bicêtre, France
| | | | - Cristian Mihalea
- Neuroradiology, Faculté Paris-Saclay, Bicêtre Hôpitaux Universitaires Paris Sud, Le Kremlin-Bicêtre, France
| | - Augustin Ozanne
- Neuroradiology, Faculté Paris-Saclay, Bicêtre Hôpitaux Universitaires Paris Sud, Le Kremlin-Bicêtre, France
| | - Sophie Gallas
- Neuroradiology, Faculté Paris-Saclay, Bicêtre Hôpitaux Universitaires Paris Sud, Le Kremlin-Bicêtre, France
| | - Jonathan Cortese
- Neuroradiology, Faculté Paris-Saclay, Bicêtre Hôpitaux Universitaires Paris Sud, Le Kremlin-Bicêtre, France
| | - Vanessa Chalumeau
- Neuroradiology, Faculté Paris-Saclay, Bicêtre Hôpitaux Universitaires Paris Sud, Le Kremlin-Bicêtre, France
| | - Leon Ikka
- Neuroradiology, Faculté Paris-Saclay, Bicêtre Hôpitaux Universitaires Paris Sud, Le Kremlin-Bicêtre, France
| | - Jildaz Caroff
- Neuroradiology, Faculté Paris-Saclay, Bicêtre Hôpitaux Universitaires Paris Sud, Le Kremlin-Bicêtre, France
| | - Julien Labreuche
- Épidémiologie et Qualité des Soins, CHU Lille, Université de Lille, EA2694, Santé Publique, Statistiques, Lille, France
| | - Laurent Spelle
- Neuroradiology, Faculté Paris-Saclay, Bicêtre Hôpitaux Universitaires Paris Sud, Le Kremlin-Bicêtre, France
| | - Christian Denier
- Department of Neurology, Hôpital Bicêtre, Stroke Center, 78 rue du General Leclerc, 94270, Le Kremlin Bicêtre, France.
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10
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Cappellari M, Pracucci G, Forlivesi S, Saia V, Limbucci N, Nencini P, Inzitari D, Da Ros V, Sallustio F, Vallone S, Bigliardi G, Zini A, Vinci SL, Dell'Aera C, Bracco S, Cioni S, Tassi R, Bergui M, Naldi A, Carità G, Azzini C, Casetta I, Gasparotti R, Magoni M, Castellan L, Finocchi C, Menozzi R, Scoditti U, Causin F, Viaro F, Puglielli E, Casalena A, Ruggiero M, Biguzzi S, Castellano D, Cavallo R, Lazzarotti GA, Orlandi G, Sgreccia A, Denaro MF, Cavasin N, Critelli A, Ciceri EFM, Bonetti B, Chiumarulo L, Petruzzelli M, Pellegrino C, Carimati F, Burdi N, Prontera MP, Auteri W, Petrone A, Guidetti G, Nicolini E, Ganci G, Sugo A, Filauri P, Sacco S, Squassina G, Invernizzi P, Nuzzi NP, Corato M, Amistà P, Gentile M, Barbero S, Schirru F, Craparo G, Mannino M, Simonetti L, Mangiafico S, Toni D. Direct thrombectomy for stroke in the presence of absolute exclusion criteria for thrombolysis. J Neurol 2020; 267:3731-3740. [PMID: 32712865 DOI: 10.1007/s00415-020-10098-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/15/2020] [Accepted: 07/20/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Intravenous thrombolysis (IVT)-ineligible patients undergoing direct thrombectomy tended to have poorer functional outcome as compared with IVT-eligible patients undergoing bridging therapy. We aimed to assess radiological and functional outcomes in large vessel occlusion-related stroke patients receiving direct thrombectomy in the presence of absolute exclusion criteria for IVT vs relative exclusion criteria for IVT and vs non-exclusion criteria for IVT. METHODS A cohort study on prospectively collected data from 2282 patients enrolled in the Italian Registry of Endovascular Treatment in Acute Stroke cohort for treatment with direct thrombectomy (n = 486, absolute exclusion criteria for IVT alone; n = 384, absolute in combination with relative exclusion criteria for IVT; n = 777, relative exclusion criteria for IVT alone; n = 635, non-exclusion criteria for IVT). RESULTS After adjustment for unbalanced variables (model 1), ORs for 3-month death was higher in the presence of absolute exclusion criteria for IVT alone (vs relative exclusion criteria for IVT alone) (1.595, 95% CI 1.042-2.440) and in the presence of absolute exclusion criteria for IVT alone (vs non-exclusion criteria for IVT) (1.235, 95% CI 1.014-1.504). After adjustment for predefined variables (model 2: age, sex, pre-stroke mRS ≤ 1, NIHSS, occlusion in the anterior circulation, onset-to-groin time, and procedure time), ORs for 3-month death was higher in the presence of absolute exclusion criteria for IVT alone (vs relative exclusion criteria for IVT alone) (1.235, 95% CI 1.014-1.504) and in the presence of absolute exclusion criteria for IVT alone (vs non-exclusion criteria for IVT) (1.246, 95% CI 1.039-1.495). No significant difference was found between the groups as regards any type of intracerebral hemorrhage and parenchymal hematoma within 24 h, successful and complete recanalization after procedure, and modified Rankin Scale score 0-2 at 3 months. After adjustment for predefined variables of model 2, ORs for death were higher in the presence of recent administration of IV heparin (OR: 2.077), platelet count < 100,000/mm3 (OR: 4.798), bacterial endocarditis (OR: 15.069), neoplasm with increased hemorrhagic risk (OR: 6.046), and severe liver disease (OR: 6.124). CONCLUSIONS Radiological outcomes were similar after direct thrombectomy in patients with absolute, relative, and non- exclusion criteria for IVT, while an increase of fatal outcome was observed in the presence of some absolute exclusion criterion for IVT.
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Affiliation(s)
- Manuel Cappellari
- USD Stroke Unit, DAI di Neuroscienze, Azienda Ospedaliera Universitaria Integrata, Piazzale A. Stefani 1, 37126, Verona, Italy.
| | | | - Stefano Forlivesi
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Maggiore Hospital, Bologna, Italy
| | | | | | | | | | | | | | - Stefano Vallone
- Ospedale Civile S.Agostino-Estense-University Hospital, Modena, Italy
| | - Guido Bigliardi
- Ospedale Civile S.Agostino-Estense-University Hospital, Modena, Italy
| | - Andrea Zini
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Maggiore Hospital, Bologna, Italy
| | | | | | - Sandra Bracco
- Ospedale S. Maria delle Scotte-University Hospital, Siena, Italy
| | - Samuele Cioni
- Ospedale S. Maria delle Scotte-University Hospital, Siena, Italy
| | - Rossana Tassi
- Ospedale S. Maria delle Scotte-University Hospital, Siena, Italy
| | - Mauro Bergui
- Città della Salute e della Scienza-Molinette, Turin, Italy
| | - Andrea Naldi
- Città della Salute e della Scienza-Molinette, Turin, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Bruno Bonetti
- USD Stroke Unit, DAI di Neuroscienze, Azienda Ospedaliera Universitaria Integrata, Piazzale A. Stefani 1, 37126, Verona, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | - Pietro Filauri
- Presidio Ospedaliero SS. Filippo e Nicola, Avezzano, Italy
| | - Simona Sacco
- Presidio Ospedaliero SS. Filippo e Nicola, Avezzano, Italy
| | - Guido Squassina
- Istituto Ospedaliero Fondazione Poliambulanza, Brescia, Italy
| | | | | | | | | | - Mauro Gentile
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Maggiore Hospital, Bologna, Italy
| | | | | | | | | | - Luigi Simonetti
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Maggiore Hospital, Bologna, Italy
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11
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Mönch S, Sepp D, Hedderich D, Boeckh-Behrens T, Berndt M, Maegerlein C, Wunderlich S, Zimmer C, Wiestler B, Friedrich B. Impact of brain volume and intracranial cerebrospinal fluid volume on the clinical outcome in endovascularly treated stroke patients. J Stroke Cerebrovasc Dis 2020; 29:104831. [PMID: 32404285 DOI: 10.1016/j.jstrokecerebrovasdis.2020.104831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/22/2020] [Indexed: 11/13/2022] Open
Abstract
PURPOSE Previously, brain volume (BV) and intracranial cerebrospinal fluid volume (CSFV) have been investigated regarding clinical outcomes of subgroups of ischemic stroke patients. This study aimed to examine if the preexisting, preischemic BV and CSFV have an impact on good functional outcome and mortality in acute ischemic stroke (AIS) patients treated with mechanical thrombectomy (MT). METHODS Preischemic BV, CSFV, and CSFV/Total intracranial volume (TICV)-ratio were calculated with a fully automated segmentation platform. Univariate and multivariate analyses were used to study associations. RESULTS In this retrospective study 107 subsequent AIS patients of a prospective database were included. The segmentation results of the fully automated algorithm based on non-contrast computerized tomography scans (NCCT) correlated significantly with the segmentation results obtained from 3D T1 weighted magnetic resonance images (P < 0.001). In the univariate analysis a preexisting BV (P < 0.001), preexisting CSFV (P = 0.009), and the ratio CSFV/total intracranial volume (P < 0.001) each significantly correlated with good functional outcome and mortality. However, in the multivariate regression analysis, also correcting for patient age, none of these volumes remained to correlate with these outcome parameters. CONCLUSION In summary, an association of BV, CSFV, and the CSFV/TICV-ratio with good functional outcome and mortality in AIS treated with MT could not be established. A fully automated segmentation algorithm based on NCCT was successfully developed in-house for calculating the volumes of interest.
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Affiliation(s)
- Sebastian Mönch
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Straße 22, 81675 Munich, Germany.
| | - Dominik Sepp
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Straße 22, 81675 Munich, Germany.
| | - Dennis Hedderich
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Straße 22, 81675 Munich, Germany.
| | - Tobias Boeckh-Behrens
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Straße 22, 81675 Munich, Germany.
| | - Maria Berndt
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Straße 22, 81675 Munich, Germany.
| | - Christian Maegerlein
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Straße 22, 81675 Munich, Germany.
| | - Silke Wunderlich
- Department of Neurology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Germany.
| | - Claus Zimmer
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Straße 22, 81675 Munich, Germany.
| | - Benedikt Wiestler
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Straße 22, 81675 Munich, Germany.
| | - Benjamin Friedrich
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Straße 22, 81675 Munich, Germany.
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12
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Pan H, Fu M, Ge W, Zhou C. The effects of changes in platelet-to-neutrophil ratios 24 hours after intravenous thrombolysis on prognosis in acute ischemic stroke patients. Clin Neurol Neurosurg 2020; 190:105739. [PMID: 32105907 DOI: 10.1016/j.clineuro.2020.105739] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 02/03/2020] [Accepted: 02/16/2020] [Indexed: 02/09/2023]
Abstract
OBJECTIVE To investigate the prognostic value of Platelet-to-Neutrophil ratio on admission (PNR on admission) and 24 h after intravenous thrombolysis (24 h PNR) in acute ischemic stroke patients (AIS) patients. PATIENTS AND METHODS One hundred fifty-one ischemic stroke patients receiving intravenous thrombolysis were retrospectively recruited in this study. Complete blood count evaluations for PNR were conducted on admission and 24 h after the treatment of thrombolysis. The poor outcome at 3months was defined as the modified Rankin Scale of 3-6. RESULTS In multivariate logistic regression, PNR on admission (odds ratio [OR] = 0.967, 95 % confidence interval [CI] = 0.939-0.996; P = 0.028), and 24 h PNR(OR = 0.933, 95 %CI = 0.895-0.972; P = 0.004) were all independent indicators for the 3-month poor prognosis in ischemic stroke patients receiving intravenous thrombolysis. The area under the curve of PNR on admission to predict poor functional outcomes at 3 months was 0.645 (95 %CI = 0.558-0.732; P < 0.001), and the best predictive PNR on admission value was 41.35. After the treatment of thrombolysis, the area under the curve of 24 h PNR to predict poor functional outcomes at 3 months was 0.796 (95 %CI = 0.722-0.858; P < 0.001), and the best predictive 24 h PNR value was 31.03. CONCLUSIONS Both the PNR on admission and 24 h PNR were independently associated with poor functional outcomes. Compared with the PNR on admission, 24 h PNR may serve as a more reliable marker for a poor prognosis in ischemic stroke patients receiving intravenous thrombolysis.
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Affiliation(s)
- Hong Pan
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
| | - Mei Fu
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
| | - Wanqian Ge
- Department of Rehabilitation, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
| | - Chengye Zhou
- Department of Rehabilitation, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
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13
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Pastori D, Antonucci E, Violi F, Palareti G, Pignatelli P. Thrombocytopenia and Mortality Risk in Patients With Atrial Fibrillation: An Analysis From the START Registry. J Am Heart Assoc 2019; 8:e012596. [PMID: 31656119 PMCID: PMC6898797 DOI: 10.1161/jaha.119.012596] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background Thrombocytopenia is associated with increased mortality in the general population, but few data exist in patients with atrial fibrillation (AF) taking oral anticoagulants. We investigated factor determinants of thrombocytopenia in a large cohort of patients affected by AF and its association with total mortality. Methods and Results Multicenter prospective cohort study, including 5215 patients with AF from the START (Survey on Anticoagulated Patients Register) registry, 3877 (74.3%) and 1338 (25.7%) on vitamin K or non–vitamin K antagonist oral anticoagulants, respectively. Thrombocytopenia was defined by a platelet count <150×109/L. Determinants of thrombocytopenia were investigated, and all‐cause mortality was the primary survival end point of the study. Thrombocytopenia was present in 592 patients (11.4%). At multivariable logistic regression analysis, chronic kidney disease (odds ratio [OR], 1.257; P=0.030), active cancer (OR, 2.065; P=0.001), liver cirrhosis (OR, 7.635; P<0.001), and the use of diuretics (OR, 1.234; P=0.046) were positively associated with thrombocytopenia, whereas female sex (OR, 0.387; P<0.001) and the use of calcium channel blockers (OR, 0.787; P=0.032) were negatively associated. During a median follow‐up of 19.2 months (9942 patient‐years), 391 deaths occurred (rate, 3.93%/year). Mortality rate increased from 3.8%/year to 9.9%/year in patients with normal platelet count and in those with moderate‐severe thrombocytopenia, respectively (log‐rank test, P=0.009). The association between moderate‐severe thrombocytopenia and mortality persisted after adjustment for CHA2DS2VASc score (hazard ratio, 2.431; 95% CI, 1.254–4.713; P=0.009), but not in the fully adjusted multivariable Cox regression analysis model. Conclusions Thrombocytopenia is common in patients with AF. Despite an increased incidence of mortality, thrombocytopenia was not associated with mortality at multivariable analysis. Thrombocytopenia may reflect the presence of comorbidities associated with poor survival in AF.
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Affiliation(s)
- Daniele Pastori
- Department of Internal Medicine and Medical Specialties I Clinica Medica Atherothrombosis Centre Sapienza University of Rome Rome Italy
| | | | - Francesco Violi
- Department of Internal Medicine and Medical Specialties I Clinica Medica Atherothrombosis Centre Sapienza University of Rome Rome Italy
| | | | - Pasquale Pignatelli
- Department of Internal Medicine and Medical Specialties I Clinica Medica Atherothrombosis Centre Sapienza University of Rome Rome Italy
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