1.Mechanical Thrombectomy Versus Intravenous Thrombolysis in Distal Medium Vessel Acute Ischemic Stroke: A Multinational Multicenter Propensity Score-Matched Study
Hamza Adel SALIM ; Vivek YEDAVALLI ; Basel MUSMAR ; Nimer ADEEB ; Muhammed Amir ESSIBAYI ; Kareem El NAAMANI ; Nils HENNINGER ; Sri Hari SUNDARARAJAN ; Anna Luisa KÜHN ; Jane KHALIFE ; Sherief GHOZY ; Luca SCARCIA ; Benjamin Y.Q. TAN ; Benjamin PULLI ; Jeremy J. HEIT ; Robert W. REGENHARDT ; Nicole M. CANCELLIERE ; Joshua D. BERNSTOCK ; Aymeric ROUCHAUD ; Jens FIEHLER ; Sunil SHETH ; Ajit S. PURI ; Christian DYZMANN ; Marco COLASURDO ; Xavier BARREAU ; Leonardo RENIERI ; João Pedro FILIPE ; Pablo HARKER ; Razvan Alexandru RADU ; Thomas R. MAROTTA ; Julian SPEARS ; Takahiro OTA ; Ashkan MOWLA ; Pascal JABBOUR ; Arundhati BISWAS ; Frédéric CLARENÇON ; James E. SIEGLER ; Thanh N. NGUYEN ; Ricardo VARELA ; Amanda BAKER ; David ALTSCHUL ; Nestor R. GONZALEZ ; Markus A. MÖHLENBRUCH ; Vincent COSTALAT ; Benjamin GORY ; Christian Paul STRACKE ; Mohammad Ali AZIZ-SULTAN ; Constantin HECKER ; Hamza SHAIKH ; David S. LIEBESKIND ; Alessandro PEDICELLI ; Andrea M. ALEXANDRE ; Illario TANCREDI ; Tobias D. FAIZY ; Erwah KALSOUM ; Boris LUBICZ ; Aman B. PATEL ; Vitor Mendes PEREIRA ; Adrien GUENEGO ; Adam A. DMYTRIW ;
Journal of Stroke 2024;26(3):434-445
Background:
and Purpose The management of acute ischemic stroke (AIS) due to distal medium vessel occlusion (DMVO) remains uncertain, particularly in comparing the effectiveness of intravenous thrombolysis (IVT) plus mechanical thrombectomy (MT) versus IVT alone. This study aimed to evaluate the safety and efficacy in DMVO patients treated with either MT-IVT or IVT alone.
Methods:
This multinational study analyzed data from 37 centers across North America, Asia, and Europe. Patients with AIS due to DMVO were included, with data collected from September 2017 to July 2023. The primary outcome was functional independence, with secondary outcomes including mortality and safety measures such as types of intracerebral hemorrhage.
Results:
The study involved 1,057 patients before matching, and 640 patients post-matching. Functional outcomes at 90 days showed no significant difference between groups in achieving good functional recovery (modified Rankin Scale 0–1 and 0–2), with adjusted odds ratios (OR) of 1.21 (95% confidence interval [CI] 0.81 to 1.79; P=0.35) and 1.00 (95% CI 0.66 to 1.51; P>0.99), respectively. Mortality rates at 90 days were similar between the two groups (OR 0.75, 95% CI 0.44 to 1.29; P=0.30). The incidence of symptomatic intracerebral hemorrhage was comparable, but any type of intracranial hemorrhage was significantly higher in the MT-IVT group (OR 0.43, 95% CI 0.29 to 0.63; P<0.001).
Conclusion
The results of this study indicate that while MT-IVT and IVT alone show similar functional and mortality outcomes in DMVO patients, MT-IVT presents a higher risk of hemorrhagic complications, thus MT-IVT may not routinely offer additional benefits over IVT alone for all DMVO stroke patients. Further prospective randomized trials are needed to identify patient subgroups most likely to benefit from MT-IVT treatment in DMVO.
2.Venous Outflow Profiles Are Linked to Clinical Outcomes in Ischemic Stroke Patients with Extensive Baseline Infarct
Laurens WINKELMEIER ; Gabriel BROOCKS ; Helge KNIEP ; Vincent GEEST ; Jonathan REINWALD ; Lukas MEYER ; Noel VAN HORN ; Adrien GUENEGO ; Kamil ZELEŇÁK ; Gregory W. ALBERS ; Maarten LANSBERG ; Peter SPORNS ; Max WINTERMARK ; Jens FIEHLER ; Jeremy J. HEIT ; Tobias D. FAIZY
Journal of Stroke 2022;24(3):372-382
Background:
and Purpose The benefit of endovascular thrombectomy (EVT) treatment is still unclear in stroke patients presenting with extensive baseline infarct. The use of additional imaging biomarkers could improve clinical outcome prediction and individualized EVT selection in this vulnerable cohort. We hypothesized that cerebral venous outflow (VO) may be associated with functional outcomes in patients with low Alberta Stroke Program Early CT Score (ASPECTS).
Methods:
We conducted a retrospective multicenter cohort study of patients with acute ischemic stroke due to large vessel occlusion (AIS-LVO). Extensive baseline infarct was defined by an ASPECTS of ≤5 on admission computed tomography (CT). VO profiles were assessed on admission CT angiography using the Cortical Vein Opacification Score (COVES). Favorable VO was defined as COVES ≥3. Multivariable logistic regression was used to determine the association between cerebral VO and good clinical outcomes (90-day modified Rankin Scale score of ≤3).
Results:
A total of 98 patients met the inclusion criteria. Patients with extensive baseline infarct and favorable VO achieved significantly more often good clinical outcomes compared to patients with unfavorable VO (45.5% vs. 10.5%, P<0.001). Higher COVES were strongly associated with good clinical outcomes (odds ratio, 2.17; 95% confidence interval, 1.15 to 4.57; P=0.024), independent of ASPECTS, National Institutes of Health Stroke Scale, and success of EVT.
Conclusions
Cerebral VO profiles are associated with good clinical outcomes in AIS-LVO patients with extensive baseline infarct. VO profiles could serve as a useful additional imaging biomarker for treatment selection and outcome prediction in low ASPECTS patients.
3.Comparing computer-aided therapy with conventional physiotherapy in Parkinson’s disease: An equivalence study
Martin Unterreiner ; Carolin Biedermann ; Robert el-Fahem ; Michael John ; Stefan Klose ; Christian T Haas ; Tobias Wä ; chter
Neurology Asia 2019;24(4):309-315
Objective: The present study investigated, whether computer-aided therapy in patients with Parkinson’s
disease is equivalent/non-inferior to conventional Lee Silvermann Voice Treatment (LSVT)-BIGtherapy in respect to motor outcome as measured by the Unified Parkinson’s Disease Rating Scale
(MDS-UPDRS-III) and quality of life as measured by the Parkinson’s Disease Questionnaire (PDQ-39).
Methods: In this controlled, rater-blinded study, 34 patients were included and 24 patients randomized
to train seven standard exercises of the BIG-therapy either by a computer (BeBIG-group) or by a
certified LSVT-BIG therapist (ThBIG-group) over four weeks. Equivalence was assessed by comparing
the confidence interval of the BeBIG-group to the equivalence margin of the ThBIG-group. Results:
There were no significant group differences in respect to age, disease duration, L-dopa equivalent
daily dose or clinical stage of the disease. Both groups profited significantly from the therapy as
demonstrated by an improvement in the MDS-UPDRS-III of 9.17 point in the BeBIG-group and of 8.92
points in the ThBIG-group. There was a non-significant decrease in the PDQ-39 of 9.23 points in the
BeBIG-group and 4.23 points in the ThBIG-group. However, equivalence could not be demonstrated
as the improvement of the BeBIG-group exceeded the confidence interval of the ThBIG-group.
Conclusion: Physical training by a computer as well as by a therapist improves motor symptoms and
quality of life in Parkinson’s disease. Both therapies are not equivalent, superiority of the computerized
training can however not be concluded, as the study was only designed to test for non-inferiority.
Therefore, computerized training can be considered as an add-on-therapy
4.Interventional Management of a Renal Cell Carcinoma by Radiofrequency Ablation with Tagging and Cooling.
Andreas H MAHNKEN ; Tobias PENZKOFER ; Philipp BRUNERS ; Rolf W GUNTHER ; Bernhard BREHMER
Korean Journal of Radiology 2009;10(5):523-526
Over the last few years, percutaneous radiofrequency (RF) ablation has been successfully established as a viable treatment modality for small peripheral renal cell carcinoma (RCC). This technique is limited by central tumor location and tumor size. We report the interventional management of a 5.3 cm mixed RCC with central and exophytic parts by combining the RF ablation with embolization, tagging, and retrograde, as well as anterograde cooling. The potential pitfalls of complex hybrid interventions for treating RCC are discussed.
Aged
;
Biopsy
;
Carcinoma, Renal Cell/pathology/radiography/*surgery
;
*Catheter Ablation
;
Female
;
Humans
;
Incidental Findings
;
Iodized Oil/therapeutic use
;
Kidney Neoplasms/pathology/radiography/*surgery
;
Tomography, X-Ray Computed
;
Ultrasonography, Interventional


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