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Article: Cerebral Sinus Vein Thrombosis following Sneezing: Case Report.

Nashef, Helal / Haratz, Salo / Mendel, Rom

2023 Volume 15, Issue 1, Page(s) 108–112

Abstract: Cerebral sinus vein thrombosis (CVT) is a relatively rare neurovascular entity, usually associated with acquired or genetic hypercoagulable states, and in many cases it remains idiopathic. Trauma is also associated with CVT among patients with major head ...

Abstract	Cerebral sinus vein thrombosis (CVT) is a relatively rare neurovascular entity, usually associated with acquired or genetic hypercoagulable states, and in many cases it remains idiopathic. Trauma is also associated with CVT among patients with major head or neck trauma, including penetrating injuries. However, CVT associated with acceleration trauma has only been described in few cases so far. We present an unusual case of a 19-year-old woman with no past medical history, admitted with an extensive CVT following sneezing. A thorough investigation did not reveal any other potential etiology or risk factor other than estrogen-containing oral contraceptives. The patient was treated with anticoagulation and improved clinically with complete recanalization on follow-up imaging. This case suggests acceleration trauma may be a potential factor of risk for CVT.
Language	English
Publishing date	2023-06-12
Publishing country	Switzerland
Document type	Case Reports
ZDB-ID	2505302-4
ISSN	1662-680X
ISSN	1662-680X
DOI	10.1159/000530812
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Article: A Rare Case of Cardioembolic Spinal Stroke in a Young Female: Case Report.

Mendel, Rom / Tsirkin, Irina / Soikher, Eugene / Haratz, Salo

Case reports in neurology

2023 Volume 15, Issue 1, Page(s) 222–226

Abstract: Spinal cord infarction (SCI) is a rare neurovascular disorder often presented with acute spinal cord syndrome. The diagnosis is generally made clinically, with appropriate neuroimaging to confirm the diagnosis and exclude other causes. We present an ... ...

Abstract	Spinal cord infarction (SCI) is a rare neurovascular disorder often presented with acute spinal cord syndrome. The diagnosis is generally made clinically, with appropriate neuroimaging to confirm the diagnosis and exclude other causes. We present an unusual case of a 48-year-old woman with no relevant past medical history, admitted with acute paraparesis and a spinal cord infarct on magnetic resonance imaging. A thorough investigation revealed asymptomatic unknown heart failure secondary to hypertrophic cardiomyopathy, suggestive of a cardioembolic etiology. The patient was treated with anticoagulation and improved significantly with physical rehabilitation.
Language	English
Publishing date	2023-09-26
Publishing country	Switzerland
Document type	Case Reports
ZDB-ID	2505302-4
ISSN	1662-680X
ISSN	1662-680X
DOI	10.1159/000531779
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Article: Janus Kinase-2 V617F Mutation and Antiphospholipid Syndrome in Cerebral Sinus Venous Thrombosis: Natural History and Retrospective Bicenter Analysis.

Orion, David / Itsekson-Hayosh, Ze'ev / Peretz, Shlomi / Mendel, Rom / Yaniv, Gal / Attia, Moshe / Grizim-Merkel, Drorit

Frontiers in neurology

2022 Volume 13, Page(s) 783795

Abstract: Background: Cerebral sinus venous thrombosis (CSVT) is a rare neurovascular entity, usually associated with acquired or genetic hypercoagulable states. In up to 30% of the cases it remains idiopathic. Bone marrow proliferation disorders that are ... ...

Abstract	Background: Cerebral sinus venous thrombosis (CSVT) is a rare neurovascular entity, usually associated with acquired or genetic hypercoagulable states. In up to 30% of the cases it remains idiopathic. Bone marrow proliferation disorders that are associated with Janus Kinase 2 V617F mutation (JAK-2) are known causes of the systemic and cerebral thrombosis-at times despite normal blood counts-for which hematologic treatment exists. However, JAK-2 prevalence in the CSVT cases is not clear. Methods: In this retrospective analysis, data of 236 patients with CSVT admitted to two tertiary centers between 2010 and 2020 were analyzed, with emphasis on laboratory and imaging data and clinical and interventional outcomes. Results: A total of 236 patients were included in the analysis. The patients' median age was 42 years and the average age was 44 years (±19 years), with 59% female patients. JAK-2 positivity rate was 18% (among 77 patients tested for the mutation). Patients with normal blood counts on presentation comprised 36% of the JAK-2 positive cases. Other hypercoagulability states were also investigated, with the antiphospholipid syndrome (APLA) showing the highest prevalence (11%) followed by other etiologies including oral contraceptive use, Factor V Leiden, prothrombin mutation, and malignancy. Selected JAK-2, APLA, and prothrombin mutation cases showed a more severe clinical course. Conclusion: JAK-2 mutation is underdiagnosed and its screening may be warranted in the cases of idiopathic CSVT, even despite normal blood counts, to allow disease-modifying treatment and blood cell count monitoring. JAK-2, APLA, and prothrombin mutation may be associated with a more complicated clinical course.
Language	English
Publishing date	2022-04-14
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2564214-5
ISSN	1664-2295
ISSN	1664-2295
DOI	10.3389/fneur.2022.783795
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Article ; Online: Prevention of venous thromboembolism in acute spontaneous intracerebral haemorrhage: A survey of opinion.

Mendel, Rom / Abdelhameed, Nadir / Salman, Rustam Al-Shahi / Cohen, Hannah / Dowlatshahi, Dar / Freemantle, Nicholas / Paciaroni, Maurizio / Parry-Jones, Adrian / Price, Christopher / Sprigg, Nikola / Werring, David J

Journal of the neurological sciences

2023 Volume 454, Page(s) 120855

Abstract: Introduction: People immobilized following acute spontaneous intracerebral haemorrhage (ICH) are at risk of venous thromboembolism (VTE) but the role of short-term prophylactic anticoagulation remains uncertain. We surveyed UK clinical practice and ... ...

Abstract	Introduction: People immobilized following acute spontaneous intracerebral haemorrhage (ICH) are at risk of venous thromboembolism (VTE) but the role of short-term prophylactic anticoagulation remains uncertain. We surveyed UK clinical practice and opinion regarding preventing VTE after ICH. Patients and methods: An online survey was sent to stroke healthcare professionals within the United Kingdom and Ireland via a professional society (British and Irish Association of Stroke Physicians (BIASP)). Results: One hundred and twenty-three staff members responded to the survey, of whom 80% were consultant stroke physicians. All responders except one considered the issue to be important or extremely important, but only 5 (4%) were "extremely certain" and 51 (41%) "fairly certain" regarding the optimal treatment approach. Intermittent pneumatic compression (IPC) devices alone were the most used method (in 60%) followed by IPC devices and switching to low molecular weight heparin (LMWH) (in 30%). We identified high levels of uncertainty regarding the role of anticoagulation, and its optimal timing; uncertainty was greater in lobar compared to deep ICH. Most respondents (93%) consider a randomised controlled trial investigating the role of pharmacological VTE prophylaxis after acute ICH as important and would consider participation. Discussion and conclusion: The optimal method for the prevention of VTE in non-traumatic ICH patients remains an area of clinical uncertainty. Clinical trials assessing short-term anticoagulation in patients after acute ICH would be beneficial in providing evidence to resolve this clinical dilemma.
MeSH term(s)	Humans ; Anticoagulants/therapeutic use ; Cerebral Hemorrhage/therapy ; Cerebral Hemorrhage/drug therapy ; Clinical Decision-Making ; Heparin, Low-Molecular-Weight/therapeutic use ; Stroke/drug therapy ; Surveys and Questionnaires ; Uncertainty ; Venous Thromboembolism/complications ; Venous Thromboembolism/prevention & control
Chemical Substances	Anticoagulants ; Heparin, Low-Molecular-Weight
Language	English
Publishing date	2023-10-25
Publishing country	Netherlands
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	80160-4
ISSN	1878-5883 ; 0022-510X ; 0374-8642
ISSN (online)	1878-5883
ISSN	0022-510X ; 0374-8642
DOI	10.1016/j.jns.2023.120855
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Article: Assessment of the Association Between Post-tonsillectomy Hemorrhage and Weather Conditions.

Mendel, Rom / Yitshak-Sade, Maayan / Nash, Michael / Joshua, Ben-Zion

The Israel Medical Association journal : IMAJ

2018 Volume 20, Issue 6, Page(s) 349–353

Abstract: Background: The most common complication after tonsillectomy is bleeding. We investigated whether performing the procedure during the summer or the winter affects the bleeding rate.: Objectives: To investigate whether there is an association between ... ...

Abstract	Background: The most common complication after tonsillectomy is bleeding. We investigated whether performing the procedure during the summer or the winter affects the bleeding rate. Objectives: To investigate whether there is an association between meteorological conditions and the occurrence of post-tonsillectomy hemorrhage (PTH) in the southern Israel Negev region. Methods: All patients who underwent tonsillectomy from 2001-2013 at the Soroka Medical Center were included. We collected patient demographic data and indications for surgery. Meteorological data were obtained from a weather station operated by the Israel Ministry of Environmental Protection. Results: Of 4438 patients who underwent tonsillectomy, with or without adenoidectomy, 432 (9.73%) experienced hemorrhage. Patients who suffered from PTH were significantly older: median age 9.61 years vs.4.7 years, P < 0.0001. When comparing patients without PTH to those who bled within 0-3 days after surgery, there was a higher risk for bleeding during the warmer seasons: relative risk (RR) 1.38, 95% confidence interval ([95%CI] 1.07-1.77), RR 1.45 (95%CI 1.17-1.80), and 1.62 (95%CI 1.27-2.06) comparing the winter to spring, summer, and fall, respectively. A statistically significant positive association was also found with the average temperature on the day of surgery. Bleeding more than 3 days after surgery was less likely in summer: RR 0.82, 95%CI 0.69-0.97. We found no association with temperature on the day of surgery and PTH after postoperative day 3. Conclusions: Seasonality, and to an extent temperature, seem to play only a minor role in PTH.
MeSH term(s)	Adenoidectomy/methods ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Cohort Studies ; Female ; Humans ; Infant ; Israel/epidemiology ; Male ; Middle Aged ; Postoperative Hemorrhage/epidemiology ; Retrospective Studies ; Risk Factors ; Seasons ; Time Factors ; Tonsillectomy/methods ; Weather ; Young Adult
Language	English
Publishing date	2018-08-20
Publishing country	Israel
Document type	Journal Article
ZDB-ID	2008291-5
ISSN	1565-1088 ; 0021-2180
ISSN	1565-1088 ; 0021-2180
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Article ; Online: Does CSF pleocytosis have a predictive value for disease course in MS?

Lotan, Itay / Benninger, Felix / Mendel, Rom / Hellmann, Mark A / Steiner, Israel

Neurology(R) neuroimmunology & neuroinflammation

2019 Volume 6, Issue 5, Page(s) e584

Abstract: Objective: MS is a demyelinating CNS disorder with a spectrum of clinical patterns regarding course and prognosis. Although several prognostic factors are considered in the initial evaluation of patients, biological markers defining the disease course ... ...

Abstract	Objective: MS is a demyelinating CNS disorder with a spectrum of clinical patterns regarding course and prognosis. Although several prognostic factors are considered in the initial evaluation of patients, biological markers defining the disease course and guiding treatments are currently lacking. It is unknown whether patients with CSF pleocytosis differ in regard to symptoms, disease course, and prognosis from those without. The aim of this study was to evaluate whether CSF pleocytosis during the initial presentation has an impact on the clinical course and progression of MS. Methods: We retrospectively evaluated patients attending the MS Clinic at Rabin Medical Center between January 1999 and January 2016 who underwent lumbar puncture (LP) at disease presentation, considering CSF cell count, clinical diagnosis (clinically isolated syndrome [CIS] and relapsing-remitting MS [RRMS]), annualized relapse rate (ARR), paraclinical findings (imaging, CSF oligoclonal bands, and evoked potentials), and disease progression, expressed by the Expanded Disability Status Scale (EDSS). Results: One hundred fourteen patients (72 females) underwent LP at disease presentation (RRMS: n = 100, CIS: n = 14). Age at diagnosis was 32.4 ± 12.2 years, and the follow-up time was 9.4 ± 3.8 years. Forty-six patients showed a pleocytic CSF (≥5 cells per μL). Compared with patients with <4 cells per μL, patients with pleocytosis had a higher ARR (0.60 ± 0.09 vs 0.48 ± 0.04; Conclusions: CSF pleocytosis may be considered a biological unfavorable predictive factor regarding disease course and progression in MS.
MeSH term(s)	Adult ; Biomarkers/cerebrospinal fluid ; Cohort Studies ; Disease Progression ; Female ; Follow-Up Studies ; Humans ; Leukocytosis/cerebrospinal fluid ; Leukocytosis/diagnostic imaging ; Male ; Middle Aged ; Multiple Sclerosis, Relapsing-Remitting/cerebrospinal fluid ; Multiple Sclerosis, Relapsing-Remitting/diagnostic imaging ; Predictive Value of Tests ; Retrospective Studies ; Young Adult
Chemical Substances	Biomarkers
Language	English
Publishing date	2019-06-18
Publishing country	United States
Document type	Journal Article
ZDB-ID	2767740-0
ISSN	2332-7812 ; 2332-7812
ISSN (online)	2332-7812
ISSN	2332-7812
DOI	10.1212/NXI.0000000000000584
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Article ; Online: Cardiac CT for intra-cardiac thrombus detection in embolic stroke of undetermined source (ESUS).

Barnea, Rani / Agmon, Inbar Nardi / Shafir, Gideon / Peretz, Shlomi / Mendel, Rom / Naftali, Jonathan / Shiyovich, Arthur / Kornowski, Ran / Auriel, Eitan / Hamdan, Ashraf

European stroke journal

2022 Volume 7, Issue 3, Page(s) 212–220

Abstract: Introduction: Embolic stroke of undetermined source (ESUS) is a common medical challenge regarding secondary prevention strategy. Cardiac imaging is the cornerstone of embolic stroke workup, in an effort to diagnose high risk cardio-embolic sources. ... ...

Abstract	Introduction: Embolic stroke of undetermined source (ESUS) is a common medical challenge regarding secondary prevention strategy. Cardiac imaging is the cornerstone of embolic stroke workup, in an effort to diagnose high risk cardio-embolic sources. Cardiac computed tomography angiography (CCTA) is an emerging imaging modality with high diagnostic performance for intra-cardiac thrombus detection. The yield of CCTA implementation in addition to standard care in ESUS workup is unknown. Thus, the aim of this study was to assess the utility of CCTA in detecting intra-cardiac thrombi in the routine ESUS workup. Patients and methods: This is a retrospective observational analysis of ESUS cases managed in vascular neurology unit between 2019 and 2021. Within this ESUS registry, consecutive patients undergoing CCTA were included and carefully analyzed. Results: During the study period 1066 Ischemic stroke (IS) cases were treated and evaluated. 266/1066 (25%) met ESUS criteria and 129/266 (48%) underwent CCTA. Intra-cardiac thrombus was detected by CCTA in 22/129 (17%; 95% CI, 11.5%-23.5%) patients: left ventricular thrombus (LVT) in 13 (10.1%) patients, left atrial appendage (LAA) thrombus in 8 (6.2%) patients, and left atrial (LA) thrombus in 1 (0.8%) patient. Only 5/22 (23%) of these thrombi were suspected, but could not be confirmed, in trans-thoracic echocardiogram (TTE). Among CCTA-undergoing patients, 27/129 (21%; 95% CI, 14%-28%) were found to have an indication (including pulmonary embolism) for commencing anticoagulation (AC) treatment, rather than anti-platelets. In favor of CCTA implementation, 22/266 (8.2%; 95% CI, 4.9%-11.5%) patients within the entire ESUS cohort were diagnosed with intra-cardiac thrombus, otherwise missed. Conclusion: CCTA improves the detection of intra-cardiac thrombi in addition to standard care in ESUS patients. The implementation of CCTA in routine ESUS workup can change secondary prevention strategy in a considerable proportion of patients.
Language	English
Publishing date	2022-05-12
Publishing country	England
Document type	Journal Article
ZDB-ID	2851287-X
ISSN	2396-9881 ; 2396-9873
ISSN (online)	2396-9881
ISSN	2396-9873
DOI	10.1177/23969873221099692
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Article ; Online: Characteristics of patients with cerebral sinus venous thrombosis and JAK2 V617F mutation.

Simaan, Naaem / Molad, Jeremy / Honig, Asaf / Filioglo, Andrei / Shbat, Fadi / Auriel, Eitan / Barnea, Rani / Hallevi, Hen / Seyman, Estelle / Mendel, Rom / Leker, Ronen R / Peretz, Shlomi

Acta neurologica Belgica

2022 Volume 123, Issue 5, Page(s) 1855–1859

Abstract: Objectives: Janus kinase 2 (JAK2-V617F) mutations can cause thrombocytosis, polycythemia and hyper viscosity leading to cerebral sinus venous thrombosis (CSVT). However, data regarding the characteristics and prevalence of JAK2-V617F mutation in ... ...

Abstract	Objectives: Janus kinase 2 (JAK2-V617F) mutations can cause thrombocytosis, polycythemia and hyper viscosity leading to cerebral sinus venous thrombosis (CSVT). However, data regarding the characteristics and prevalence of JAK2-V617F mutation in patients with CSVT are currently lacking. We aimed to evaluate the characteristics of CSVT patients that carry the JAK2 mutation. Materials and methods: Data of consecutive patients with CSVT, admitted to three large academic medical centers between 2010 and 2020, were retrospectively studied. Demographics, clinical presentations, radiological and clinical outcome parameters were compared between carriers of the JAK2-V617F mutation and controls. Results: Out of 404 patients diagnosed with CSVT, 26 patients (6.5%) were carriers of the mutation. JAK2 mutation carriers more often had thrombocytosis (54% vs. 1%, p < 0.001). Furthermore, carriers of the JAK2 mutation less often had involvement of the transverse sinus (50% vs. 68%, p = 0.021). Finally, patients with the JAK2 mutation were more prone to have intracerebral hemorrhage (ICH, 31% vs. 17%, p = 0.044), but there was no significant difference between groups in terms of mortality nor functional outcome. Conclusions: JAK2 mutation is not uncommon in patients with CSVT and should be routinely screened for in this population. CSVT in JAK2 mutation carriers may have a tendency toward involving specific venous sinuses and is associated with a higher rate of ICH but similar overall prognosis.
MeSH term(s)	Humans ; Venous Thrombosis ; Retrospective Studies ; Genetic Predisposition to Disease ; Mutation/genetics ; Thrombocytosis ; Janus Kinase 2/genetics
Chemical Substances	JAK2 protein, human (EC 2.7.10.2) ; Janus Kinase 2 (EC 2.7.10.2)
Language	English
Publishing date	2022-09-22
Publishing country	Italy
Document type	Journal Article
ZDB-ID	127315-2
ISSN	2240-2993 ; 0300-9009
ISSN (online)	2240-2993
ISSN	0300-9009
DOI	10.1007/s13760-022-02077-x
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Article: Cerebral Sinus Vein Thrombosis following Sneezing: Case Report.

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Article: A Rare Case of Cardioembolic Spinal Stroke in a Young Female: Case Report.

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Article: Janus Kinase-2 V617F Mutation and Antiphospholipid Syndrome in Cerebral Sinus Venous Thrombosis: Natural History and Retrospective Bicenter Analysis.

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Article ; Online: Prevention of venous thromboembolism in acute spontaneous intracerebral haemorrhage: A survey of opinion.

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Article: Assessment of the Association Between Post-tonsillectomy Hemorrhage and Weather Conditions.

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Article ; Online: Does CSF pleocytosis have a predictive value for disease course in MS?

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Article ; Online: Cardiac CT for intra-cardiac thrombus detection in embolic stroke of undetermined source (ESUS).

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Article ; Online: Characteristics of patients with cerebral sinus venous thrombosis and JAK2 V617F mutation.

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