scholarly journals Delayed Stroke after Aneurysm Treatment with Flow Diverters in Small Cerebral Vessels: A Potentially Critical Complication Caused by Subacute Vasospasm

2019 ◽  
Vol 8 (10) ◽  
pp. 1649 ◽  
Author(s):  
Schob ◽  
Richter ◽  
Lindner ◽  
Planitzer ◽  
Hamerla ◽  
...  
Keyword(s):  
Neurocritical Care ◽  
Critical Level ◽  
Neointimal Hyperplasia ◽  
Brain Perfusion ◽  
Endovascular Technique ◽  
Post Procedure ◽  
Patients At Risk ◽  
Flow Diverters ◽  
Cerebrovascular Hemodynamics

Flow diversion (FD) is a novel endovascular technique based on the profound alteration of cerebrovascular hemodynamics, which emerged as a promising minimally invasive therapy for intracranial aneurysms. However, delayed post-procedural stroke remains an unexplained concern. A consistent follow-up-regimen has not yet been defined, but is required urgently to clarify the underlying cause of delayed ischemia. In the last two years, 223 patients were treated with six different FD devices in our center. We identified subacute, FD-induced segmental vasospasm (SV) in 36 patients as a yet unknown, delayed-type reaction potentially compromising brain perfusion to a critical level. Furthermore, 86% of all patients revealed significant SV approximately four weeks after treatment. In addition, 56% had SV with 25% stenosis, and 80% had additional neointimal hyperplasia. Only 13% exhibited SV-related high-grade stenosis. One of those suffered stroke due to prolonged SV, requiring neurocritical care and repeated intra-arterial (i.a.) biochemical angioplasty for seven days to prevent territorial infarction. Five patients suffered newly manifested, transient hemicrania accompanying a compensatorily increased ipsilateral leptomeningeal perfusion. One treated vessel obliterated permanently. Hence, FD-induced SV is a frequent vascular reaction after FD treatment, potentially causing symptomatic ischemia or even stroke, approximately one month post procedure. A specifically early follow-up-strategy must be applied to identify patients at risk for ischemia, requiring intensified monitoring and potentially anti-vasospastic treatment.

scholarly journals Early clinical experience with the p48MW HPC and p64MW HPC flow diverters in the anterior circulation aneurysm using single anti-platelet treatment

2021 ◽  
pp. 159101992110295
Author(s):  
Pervinder Bhogal ◽  
Andrey Petrov ◽  
Ganbaatar Rentsenkhu ◽  
Baatarjan Nota ◽  
Erdenebat Ganzorig ◽  
...  
Keyword(s):  
Clinical Results ◽  
Dome Height ◽  
Anterior Circulation ◽  
Post Procedure ◽  
Neurological Morbidity ◽  
Procedural Complications ◽  
Previously Treated ◽  
Flow Diverters ◽  
Overall Mortality

Background The p64MW HPC and p48MW HPC flow diverters have reduced thrombogenicity due to hydrophilic coating. The purpose of this study was to evaluate its safety and efficacy in Mongolian patients under single antiplatelet therapy (SAPT) with prasugrel. Materials and methods We performed a retrospective review of patients enrolled into our prospectively maintained database to identify all patients treated with either the p48MW HPC or p64MW HPC under SAPT. We recorded baseline demographics, aneurysm size and location, procedural complications, angiographic and clinical results. Results 24 patients, (female = 21, 87.5%), age 48.2 ± 11.6 years (range 25–63) underwent treatment of 30 aneurysms with either p64MW HPC or p48MW HPC. All aneurysms were saccular with dome width 8.2 ± 6.5 (range 1.6–26.0 mm) and dome height 7.6 ± 6.7 (range 1.6–30.0 mm). None of the aneurysms were previously treated. The average PRU was 54.6 ± 31.2 (range 1–127) on pre-operative VerifyNow testing. Angiographic follow-up was available for 13 patients (17 aneurysms), 183 ± 36 days post-procedure, at which point 64.7% of aneurysms (n = 11/17) were completely occluded and 11.8% (n = 2/17) had only neck remnants resulting in 76.5% of aneurysms being adequately occluded A single intra-operative complication (4.2%) occurred however all patients were mRS ≤1 at last follow-up. There were two post-operative complications neither of which resulted in permanent neurological morbidity. There were no instances of post-operative aneurysmal rupture or delayed parenchymal haemorrhage. The overall mortality was 0%. Conclusion The efficacy and safety of p64MW HPC coated devices under SAPT is similar to uncoated flow diverters that require DAPT.

scholarly journals Brain atrophy and clinical characteristics predicting SDMT performance in multiple sclerosis: A 10-year follow-up study

2021 ◽  
Vol 7 (1) ◽  
pp. 205521732199239
Author(s):  
Cecilie Jacobsen ◽  
Robert Zivadinov ◽  
Kjell-Morten Myhr ◽  
Turi O Dalaker ◽  
Ingvild Dalen ◽  
...  
Keyword(s):  
Clinical Data ◽  
Grey Matter Volume ◽  
Lesion Volume ◽  
Information Processing Speed ◽  
Disability Status ◽  
Mri Scans ◽  
Patients At Risk ◽  
Magnetic Resonance Imaging Mri ◽  
Specific Volumes

Objectives To identify Magnetic Resonance Imaging (MRI), clinical and demographic biomarkers predictive of worsening information processing speed (IPS) as measured by Symbol Digit Modalities Test (SDMT). Methods Demographic, clinical data and 1.5 T MRI scans were collected in 76 patients at time of inclusion, and after 5 and 10 years. Global and tissue-specific volumes were calculated at each time point. For the primary outcome of analysis, SDMT was used. Results Worsening SDMT at 5-year follow-up was predicted by baseline age, Expanded Disability Status Scale (EDSS), SDMT, whole brain volume (WBV) and T2 lesion volume (LV), explaining 30.2% of the variance of SDMT. At 10-year follow-up, age, EDSS, grey matter volume (GMV) and T1 LV explained 39.4% of the variance of SDMT change. Conclusion This longitudinal study shows that baseline MRI-markers, demographic and clinical data can help predict worsening IPS. Identification of patients at risk of IPS decline is of importance as follow-up, treatment and rehabilitation can be optimized.

149 Emergency Clot Retrieval and Stenting for Posterior Circulation Stroke

2021 ◽  
Vol 108 (Supplement_2) ◽  
Author(s):  
K Daga ◽  
M T Ahmad ◽  
M Taneja
Keyword(s):  
Treatment Option ◽  
Current Literature ◽  
Basilar Artery ◽  
Cerebral Angiography ◽  
Posterior Circulation ◽  
Anterior Circulation ◽  
Acute Setting ◽  
Post Procedure ◽  
Basilar Artery Stenosis

Abstract The current literature regarding the morphology and presentations of strokes due to basilar artery stenosis/occlusion is limited. This pathology is a rare cause of stroke and its management is not clearly decided in guidelines or published literature. Moreover, posterior circulation strokes are reported to be more devastating than anterior circulation. We present a case of a 68-year-old male who presented in an acute setting with reduced consciousness, myoclonic jerks, weakness and nausea due to a stroke from an occluded mid-segment basilar artery. MRI showed evidence of left cerebellar and right occipital infarcts. Emergent cerebral angiography was performed, and he was immediately treated by thrombectomy and stenting (Stryker Wingspan stent). The patient made a full recovery within one week and remained well at follow-up 3 months post-procedure. Emergency recanalization of basilar artery strokes, by clot retrieval and stenting, should be considered as a treatment option.

Early vascular responses to ultrathin biodegradable polymer sirolimus-eluting stent for the treatment of st-elevation myocardial infarction

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
Y Oishi ◽  
T Shinke ◽  
H Tanaka ◽  
K Ogura ◽  
K Arai ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Clinical Outcomes ◽  
Antiplatelet Therapy ◽  
St Elevation Myocardial Infarction ◽  
Current Generation ◽  
Vascular Responses ◽  
Post Procedure ◽  
St Elevation ◽  
Sirolimus Eluting Stent

Abstract Background Recent clinical study suggests newer-generation drug-eluting stents (DES) that combine ultrathin strut and nano-coating with biodegradable polymers sirolimus-eluting stent (BP-SES) could improve long-term clinical outcomes in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) over current generation DES. However, safety profiles in very early phase have not been systematically addressed. Objective and method We exploratory investigate early vascular response following BP-SES implantation in patients with STEMI to reveal mechanism of the favorable clinical outcomes in recent studies using frequency domain-optical coherence tomography (FD-OCT). Consecutive twenty patients with STEMI who underwent FD-OCT immediately after primary PCI and were eligible for follow-up FD-OCT at 2 weeks after implantation were enrolled between June 2018 and November 2019. Results Twenty patients (age 62.7±11.3 years, male 85.0%) were enrolled with frequencies of hypertension (45.0%), diabetes mellitus (35.0%), dyslipidemia (55.0%) and smoking (80.0%). Aspiration catheter were used in all patients, and 1.13±0.34 stents were used. Only one patient (5.0%) received chronic antiplatelet therapy with aspirin prior to the onset of STEMI. All patients started to receive prasugrel as thienopyridine from this event and continued dual antiplatelet therapy for 2 weeks. The percentage of uncovered struts significantly decreased from post-procedure to 2W follow-up (69±18% post-procedure versus 30±11% at 2W follow up, p<0.0001). Malapposed struts also decreased (5.6±5.7% post-procedure versus0.9±1.2% at 2W follow up, p<0.0001).The average protrusion area of athero-thrombotic burden numerically decreased (0.37±0.19 at post-procedure versus 0.34±0.14 mm2 at 2W follow up, p=0.19) and its volume showed similar tendency (10.60±6.40 at post-procedure versus 9.36±5.14 mm3 at 2W follow up, p=0.19). Conclusion(s) This study firstly elucidated very early vascular responses following ultrathin strut BP-SES implantation in STEMI patients, showing early progression of strut coverage and resolution of athero-thrombotic materials. This technology may have a potential to overcome the current generation DESs in this clinical setting. Thrombus, uncovered and malapposed struts Funding Acknowledgement Type of funding source: None

scholarly journals Acceptability of no-test medical abortion provided via telemedicine: analysis of patient-reported outcomes

2021 ◽  
pp. bmjsrh-2020-200954
Author(s):  
Chelsey Porter Erlank ◽  
Jonathan Lord ◽  
Kathryn Church
Keyword(s):  
Patient Reported Outcomes ◽  
Medical Abortion ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Post Procedure ◽  
High Satisfaction ◽  
First Choice ◽  
Patient Reported ◽  
At Home

IntroductionThe English government approved both stages of early medical abortion (EMA), using mifepristone and misoprostol under 10 weeks’ gestation, for at-home use on 30 March 2020. MSI Reproductive Choices UK (MSUK), one of the largest providers of abortion services in England, launched a no-test telemedicine EMA pathway on 6 April 2020. The objectives of this study were to report key patient-reported outcome measures and to assess whether our sample was representative of the whole population receiving no-test telemedicine EMA.MethodsA sample of all MSUK’s telemedicine EMA patients between April and August 2020 were invited to opt in to a follow-up call to answer clinical and satisfaction questions. A total of 1243 (13.7% of all telemedicine EMAs) were successfully followed-up, on average within 5 days post-procedure.ResultsPatients reported high confidence in telemedicine EMA and high satisfaction with the convenience, privacy and ease of managing their abortion at home. The sample responding were broadly equivalent to the whole population receiving telemedicine. No patient reported that they were unable to consult privately. The majority (1035, 83%) of patients reported preferring the telemedicine pathway, with 824 (66%) indicating that they would choose telemedicine again if COVID-19 were no longer an issue.ConclusionsTelemedicine EMA is a valued, private, convenient and more accessible option that is highly acceptable for patients seeking an abortion, especially those for whom in-clinic visits are logistically or emotionally challenging. Evidence that this pathway would be a first choice again in future for most patients supports the case to make telemedicine EMA permanent.

scholarly journals The comparison of the chronic-phase vascular healing between bioabsorbable and durable polymer drug eluting stent by using optical coherence tomography

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
Y Yamakami ◽  
S Kimura ◽  
K Hara ◽  
M Ohmori ◽  
R Tateishi ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Acute Coronary Syndrome ◽  
Clinical Presentation ◽  
Neointimal Hyperplasia ◽  
Chronic Phase ◽  
Drug Eluting Stents ◽  
Coronary Syndrome ◽  
Durable Polymer ◽  
Drug Eluting

Abstract Background Bioabsorbable polymer drug eluting stents (BP-DESs) were designed to reduce a vascular inflammatory reaction compared to durable polymer drug eluting stents (DP-DESs). However, few studies have compared vascular responses to BP-DESs and DP-DESs. Methods We enrolled 88 consecutive patients with single culprit coronary artery lesions (31 lesions with acute coronary syndrome) undergoing a single stent-implantation. BP-DESs and DP-DESs were implanted in 50 (57%) and 38 patients (43%), respectively. All lesions underwent optical coherence tomography examination at chronic phase and intrastent OCT findings at the follow-up were evaluated in every 1-mm cross-sections (CSs). Results A total of 1887 CSs (BP-DES: 1096, DP-DES: 791) were analyzed. The median period of follow-up OCT was 293 (250–374) days. There were no differences in the patient, lesion, and initial clinical presentation of acute coronary syndrome (ACS). BP-DESs had significantly higher percent neointimal hyperplasia area, defined as neointimal hyperplasia area divided by stent area x 100 (18.4±9.0% vs. 16.1±9.9%, p<0.001), fewer malapposed struts (1.7% vs. 3.9%, p=0.005), fewer uncovered struts (3.6% vs. 5.8%, p=0.02) but higher frequency of superficial low intensity neointima (LIN) (7.7% vs. 3.4%, p<0.001). Multivariate logistic analysis showed that BP-DES (OR: 2.5, 95% CI: 1.49–4.08, p<0.001) and the initial clinical presentation of ACS (OR: 2.31, 95% CI: 1.47–3.62, p<0.001) are independent predictive factors for LIN. Conclusion BP-DESs showed homogenous neointimal growth and complete stent coverage quantitatively. Meanwhile, the significant relationships of BP-DES with LIN may suggest that the neointimal quality remains immature in BP-DESs in this period. Funding Acknowledgement Type of funding source: None

Treatment of Dissecting Distal Vertebral Artery (V4) Aneurysms With Flow Diverters

2017 ◽  
Vol 15 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Jacquelyn A Corley ◽  
Ali Zomorodi ◽  
L Fernando Gonzalez
Keyword(s):  
Vertebral Artery ◽  
Neurological Deficits ◽  
Medication Regimen ◽  
Antiplatelet Medication ◽  
Average Improvement ◽  
Multiple Challenges ◽  
Partial Thrombosis ◽  
Flow Diverters ◽  
Dissecting Aneurysms

Abstract BACKGROUND Dissecting aneurysms of the intracranial vertebral arteries are rare; however, treatment of these presents multiple challenges, including high risk of rebleeding, development of thromboembolic strokes, and progressive partial thrombosis. Flow diverters, such as Pipeline Endovascular Devices (PEDs; Covidien, Medtronic Inc, Dublin, Ireland), have emerged as a potential treatment option. OBJECTIVE To present our experience with patients treated at our institution with PEDs for dissecting distal vertebral artery (V4 segment) aneurysms. METHODS A retrospective search of our prospectively maintained database was performed between January 2014 and December 2016. We queried our database for all patients treated with PED for dissecting aneurysms of the V4 segment. Information was gathered including demographics, the location and morphology of the aneurysm, the clinical presentation, specific form of treatment, complications, antiplatelet medication regimen, and follow-up time. RESULTS There were a total of 9 patients with dissecting V4 aneurysms treated with PED during the study period. All were treated initially with an average of 1.2 PEDs. All patients were followed with at least one repeat diagnostic angiogram and there was no residual aneurysm seen in 8 of 9 cases. In those that presented with neurological deficits, there was an average improvement in modified Rankin Scale of 2.85 points. CONCLUSION PED is a safe and effective tool that can be used to treat ruptured dissecting aneurysms of this specific segment of the posterior circulation, but it does require close management of antiplatelet therapy in the setting of subarachnoid hemorrhage and close angiographic follow-up.

scholarly journals Factors associated with being lost to follow-up before completing tuberculosis treatment: analysis of surveillance data

2012 ◽  
Vol 141 (6) ◽  
pp. 1223-1231 ◽  
Author(s):  
E. R. C. MILLETT ◽  
D. NOEL ◽  
P. MANGTANI ◽  
I. ABUBAKAR ◽  
M. E. KRUIJSHAAR
Keyword(s):  
Surveillance Data ◽  
Sputum Smear ◽  
Tuberculosis Patients ◽  
Factors Associated ◽  
Increased Risk ◽  
Patients At Risk ◽  
Treatment Analysis ◽  
The Uk ◽  
Lost To Follow Up

SUMMARYCompletion of treatment is key to tuberculosis control. Using national surveillance data we assessed factors associated with tuberculosis patients being lost to follow-up before completing treatment (‘lost’). Patients reported in England, Wales and Northern Ireland between 2001 and 2007 who were lost 12 months after beginning treatment were compared to those who completed, or were still on treatment, using univariable and multivariable logistic regression. Of 41 120 patients, men [adjusted odds ratio (aOR) 1·29; 95% confidence interval (CI) 1·23–1·35], 15- to 44-year-olds (P<0·001), and patients with pulmonary sputum smear-positive disease (aOR 1·25, 95% CI 1·12–1·45) were at higher risk of being lost. Those recently arrived in the UK were also at increased risk, particularly those of the White ethnic group (aOR 6·39, 95% CI 4·46–9·14). Finally, lost patients had a higher risk of drug resistance (aOR 1·41, 95% CI 1·17–1·69). Patients at risk of being lost require enhanced case management and novel case retention methods are needed to prevent this group contributing towards onward transmission.

Hybrid stenting of the arterial duct with carotid cutdown and flip technique: immediate and early results

2021 ◽  
pp. 1-7
Author(s):  
Supratim Sen ◽  
Priya Pradhan ◽  
Sneha Jain ◽  
Dipesh Trivedi ◽  
Pradeep Kaushik
Keyword(s):  
Interquartile Range ◽  
Attractive Alternative ◽  
Single Centre ◽  
Arterial Access ◽  
Post Procedure ◽  
Arterial Duct ◽  
Early Results ◽  
Carotid Arterial ◽  
Mean Time

Abstract Stenting of the arterial duct (PDA) has become a standard palliation for ductal-dependent pulmonary circulation. Carotid arterial access provides a direct route for stenting vertical ducts. We evaluated our early results of hybrid ductal stenting via surgical carotid cutdown. Methods and results: In this retrospective single centre cohort study, hybrid PDA stenting was attempted in 11 patients with “flip technique”, between January 2020 and February 2021, and was successful in 10. Median age was 29 days (interquartile range 17.5–87) and mean weight 3.37 ± 1.23 kg. Mean fluoroscopy time was 13.58 ± 5.35 minutes, mean procedure time was 48.50 ± 22.5 minutes, and mean radiation dose was 1719.5 ± 1217.6 mGycm2. Mean time for cutdown was 9.9 ± 2.4 minutes and for haemostasis and suturing was 25.3 ± 11.0 minutes. Median duration of ventilation post-stenting was 26 hours (interquartile range 21–43.75). The median ICU stay post-procedure was 5 days (interquartile range 4–7.25) and mean hospital stay was 12 ± 6.3 days. On early follow-up, carotid patency was confirmed in all patients with colour Doppler, with no intravascular thrombi, narrowing, haematomas, or aneurysms noted. There were no complications secondary to vascular access. There was one early mortality, 27 days post-stenting, which was unrelated to the procedure. Conclusion: This study adds to the limited literature on ductal stenting with carotid access and the flip technique. In our early experience, the hybrid carotid approach is an attractive alternative to percutaneous carotid puncture and has simplified a complex and challenging intervention, with good outcomes.

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