Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 117
Filtrar
1.
Neurochirurgie ; : 101561, 2024 Apr 13.
Artigo em Inglês | MEDLINE | ID: mdl-38621474

RESUMO

INTRODUCTION: Vertebral artery injury (VAI) following blunt trauma can lead to acute or delayed life-threatening posterior fossa ischemic stroke. Its management raises controversial issues and is still open to debate. MATERIAL & METHOD: We report the case of a 48-year-old male who presented a life-threatening posterior circulation ischemic stroke, secondary to a vertebral artery dissection caused by a cervical spine fracture. This case was successfully managed through intravenous thrombolysis and endovascular thrombectomy followed by antiplatelet therapy and an anterior cervical discectomy and fusion. At the one-year follow-up, the patient had no persisting deficit and was back working as a policeman. CONCLUSION: Rapid management of patients with dramatic clinical presentation can lead to full recovery. Implications include a systematic screening of blunt trauma VAI through computed tomography angiography when dealing with high-risk cervical spine fractures; patients harboring both a cervical spine fracture and a VAI must be transferred to a tertiary referral hospital able to deal both with strokes and cervical spine surgery to ensure responsiveness in case of stroke.

2.
Front Neurol ; 15: 1360335, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38606280

RESUMO

Introduction and purpose: Basilar artery occlusion (BAO) is still one of the most devastating neurological conditions associated with high morbidity and mortality. In the present study, we aimed to assess the role of posterior circulation collaterals as predictors of outcome in the BASICS trial and to compare two grading systems (BATMAN score and PC-CS) in terms of prognostic value. Methods: We performed a sub-analysis of the BASICS trial. Baseline clinical and imaging variables were analyzed. For the imaging analysis, baseline CT and CTA were analyzed by a central core lab. Only those patients with good or moderate quality of baseline CTA and with confirmed BAO were included. Multivariable binary logistic regression analysis was used to test the independent association of clinical and imaging characteristics with a favorable outcome at 3 months (defined as a modified Rankin Score of ≤3). ROC curve analysis was used to assess and compare accuracy between the two collateral grading systems. Results: The mean age was 67.0 (±12.5) years, 196 (65.3%) patients were males and the median NIHSS was 21.5 (IQR 11-35). Median NCCT pc-ASPECTS was 10 (IQR10-10) and median collateral scores for BATMAN and PC-CS were 8 (IQR 7-9) and 7 (IQR 6-8) respectively. Collateral scores were associated with favorable outcome at 3 months for both BATMAN and PC-CS but only with a modest accuracy on ROC curve analysis (AUC 0.62, 95% CI [0.55-0.69] and 0.67, 95% CI [0.60-0.74] respectively). Age (OR 0.97, 95% CI [0.95-1.00]), NIHSS (OR 0.91, 95% CI [0.89-0.94]) and collateral score (PC-CS - OR 1.2495% CI [1.02-1.51]) were independently associated with clinical outcome. Conclusion: The two collateral grading systems presented modest prognostic accuracy. Only the PC-CS was independently associated with a favorable outcome at 3 months.

3.
Cureus ; 16(3): e56800, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38654797

RESUMO

Hiccups, also known as singultus, are involuntary spasms of the diaphragm muscle followed by laryngeal closure involving a reflex arc. It is a relatively common phenomenon, usually transient and self-limiting. However, in medical settings, it could be much more serious and is often a sign of underlying pathology. When hiccups last for over 48 hours, they are referred to as persistent hiccups, and if they persist for more than a month, they are known as intractable hiccups. Current pharmacologic treatment of persistent or intractable hiccups mainly includes antidopaminergic drugs, which specifically antagonize the dopamine D2 receptor. Here, we present the case of a 54-year-old gentleman who was admitted under our care with a posterior circulation stroke specifically affecting the medulla. He was symptomatic with severe, persistent hiccups interfering with sleep and oral intake and unresponsive to all standard medications. After nearly two weeks, a trial of hydrocortisone was given, to which he responded dramatically. To the best of our knowledge, this is the only case of hiccups that has been successfully treated with hydrocortisone. The remarkable improvement seen in our patient when treated with hydrocortisone suggests hydrocortisone could be a useful agent in post-stroke hiccups that are unresponsive to traditional treatment for hiccups.

4.
Cureus ; 16(3): e55797, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38586618

RESUMO

The artery of Percheron (AOP) is a unique variant of the thalamic and midbrain perforating arteries. It originates from the P1 branch of the posterior cerebral artery (PCA) and supplies the bilateral paramedian thalami (BPT) along with variable contributions to the rostral midbrain. Four infarction patterns have been identified as a result of an AOP stroke, each associated with varying prognostic outcomes. We present an 89-year-old female with an AOP infarction and discuss the associated symptoms, implicated anatomy, and prognosis.

5.
Cureus ; 16(2): e54314, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38496203

RESUMO

In this case, a 61-year-old patient presented with Horner's syndrome of the left eye, left-sided truncal ataxia, left-sided pain/paresthesia of the face as well as right-sided loss of pain and temperature of the arms and legs. MRI findings displayed a clear 4 mm acute left lateral medullary infarct of the left posterior inferior cerebellar artery (PICA) vascular territory, indicative of lateral medullary syndrome (LMS). The presence of pre-existing medical conditions such as uncontrolled diabetes, late-stage syphilis, and a mechanical aortic valve complicated this clinical picture. The presence of ipsilateral corticospinal deficits in this patient revealed Opalski syndrome, a rare variant of LMS. This case report highlighted the importance of correlating imaging and physical examination of stroke findings.

6.
Front Neurol ; 15: 1339039, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38497038

RESUMO

Accurate and timely diagnosis of posterior circulation stroke in patients with acute dizziness is a challenge that can lead to misdiagnosis and significant harm. The present review sought to identify and describe published research on the clinical application of vHIT in posterior circulation stroke. vHIT, a portable device, has gained prominence in evaluating peripheral vestibular disorders and offers potential applications in diagnosing neurological disorders, particularly posterior circulation stroke. Several studies have shown that vHIT can differentiate between stroke and vestibular neuritis based on VOR gain values, with high sensitivity and specificity. The manuscript also discusses vHIT's performance in differentiating between types of posterior circulation stroke, such as PICA, AICA, and SCA strokes. While vHIT has demonstrated promise, the review emphasizes the need for further research to validate its use as a tool to rule out stroke in acute dizziness patients in the emergency department. In conclusion, the manuscript underscores the potential of vHIT as a valuable addition to the diagnostic arsenal for acute dizziness, particularly in the context of posterior circulation stroke. It calls for further research and wider adoption of vHIT in clinical settings to improve patient care and reduce unnecessary costs associated with misdiagnoses.

7.
Stroke Vasc Neurol ; 2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-38531544

RESUMO

BACKGROUND AND PURPOSE: Acute vestibular syndrome (AVS) typically manifests as isolated dizziness or vertigo with no apparent neurological impairments. However, distinguishing life-threatening stroke from innocuous peripheral vestibular lesions in the emergency room (ER) remains challenging. This study aimed to explore the ability of the head impulse-nystagmus-test of skew (HINTS) combined with truncal ataxia or ABCD2 score to differentiate stroke from peripheral vestibular disease in patients with AVS in the ER. METHODS: We prospectively recruited 121 patients with AVS from December 2022 to June 2023, 69 of whom presented with vestibular neuritis (VN) and the remaining with posterior circulation stroke (PCS). We analysed the HINTS results, truncal ataxia and ABCD2 score and compared the sensitivity and specificity among HINTS, truncal ataxia, ABCD2 score and their combinations using the McNemar test for paired samples. RESULTS: HINTS combined with grade 2-3 truncal ataxia achieved significantly higher sensitivity than that of isolated HINTS in differentiating PCS from VN (100% vs 88.5%, p=0.031). The specificity of HINTS plus grade 2-3 truncal ataxia did not significantly differ from that of isolated HINTS (p=0.125); however, the combination of ABCD2 score and HINTS did not improve the diagnostic accuracy. The sensitivity of ABCD2 score ≥4 plus grade 2-3 truncal ataxia was significantly higher than those of isolated ABCD2 score ≥4 or isolated grade 2-3 truncal ataxia (p=0.016 and p<0.001, respectively) and not significantly lower than that of isolated HINTS (p=0.508). CONCLUSION: Compared with the ABCD2 score, the truncal ataxia is of more valuable assistance to HINTS in differentiating PCS. Although the combination of ABCD2 score and truncal ataxia has a significant implication, it is not a replacement for HINTS.

8.
Front Neurol ; 15: 1302298, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38385041

RESUMO

Background: Posterior cerebral circulation ischemic stroke (PCS) comprises up to 25% of all strokes. It is characterized by variable presentation, leading to misdiagnosis and morbidity and mortality. We aim to describe PCS in large multiethnic cohorts. Methods: A retrospective review of a large national stroke database from its inception on the 1st of January 2014 till 31 December 2020. Incidence per 100,000 adult population/year, demographics, clinical features, stroke location, and outcomes were retrieved. We divided the cohort into patients from MENA (Middle East and North Africa) and others. Results: In total, 1,571 patients were identified. The incidence of PCS was observed to be rising and ranged from 6.3 to 13.2/100,000 adult population over the study period. Men were 82.4% of the total. The mean age was 54.9 ± 12.7 years (median 54 years, IQR 46, 63). MENA patients comprised 616 (39.2%) while others were 954 (60.7%); of these, the majority (80.5%) were from South Asia. Vascular risk factors were prevalent with 1,230 (78.3%) having hypertension, 970 (61.7%) with diabetes, and 872 (55.5%) having dyslipidemia. Weakness (944, 58.8%), dizziness (801, 50.5%), and slurred speech (584, 36.2%) were the most commonly presenting symptoms. The mean National Institute of Health Stroke Score (NIHSS) score was 3.8 ± 4.6 (median 3, IQR 1, 5). The overall most frequent stroke location was the distal location (568, 36.2%). The non-MENA cohort was younger, less vascularly burdened, and had more frequent proximal stroke location (p < 0.05). Dependency or death at discharge was seen in 39.5% and was associated with increasing age, and proximal and multilocation involvement; while at 90 days it was 27.4% and was associated with age, male sex, and having a MENA nationality (p < 0.05). Conclusion: In a multiethnic cohort of posterior circulation stroke patients from the MENA region and South Asia, we noted a rising incidence over time, high prevalence of vascular risk factors, and poor outcomes in older men from the MENA region. We also uncovered considerable disparities between the MENA and non-MENA groups in stroke location and outcome. These disparities are crucial factors to consider when tailoring individualized patient care plans. Further research is needed to thoroughly investigate the underlying reasons for these variations.

9.
J Stroke Cerebrovasc Dis ; 33(1): 107471, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37966095

RESUMO

INTRODUCTION: The best anesthetic choice for patients with acute posterior circulation stroke during endovascular treatment (EVT) remains uncertain. METHOD: We searched five databases to identify studies that met the inclusion criteria. Our primary outcome measure was functional independence (FI). Secondary outcomes were 3-month mortality, any intracranial hemorrhage (ICH), symptomatic ICH (sICH), successful reperfusion, and procedure- and ventilator-associated complications. RESULTS: A total of 10 studies were included in our meta-analysis. No significant differences were detected between the general anesthesia (GA) and conscious sedation and local anesthesia (CS/LA) groups in 3-month FI (nine studies; OR=0.69; 95% CI 0.45-1.06; P=0.083; I2=66%;), 3-month mortality (nine studies; OR=1.41; 95% CI 0.94-2.11; P=0.096; I2=61.2%;), any ICH (three studies; OR=0.75; 95% CI 0.44-1.25; P=0.269; I2=0%;), or sICH (six studies; OR=0.64; 95% CI 0.40-1.04; P=0.073; I2=0%;). No significant differences were observed for successful reperfusion (10 studies; OR=1.17; 95% CI 0.91-1.49; P=0.219; I2=0%;), procedure-related complications (four studies; OR=1.14; 95% CI 0.70-1.87; P=0.603; I2=7.9%;), or respiratory complications (four studies; OR=1.19; 95% CI 0.61-2.32; P=0.616; I2=64.9%;) between the two groups. CONCLUSIONS: Our study showed no differences in 3-month FI, 3-month mortality, and successful reperfusion between patients treated with GA and those treated with CS/LA. Additionally, no increased risk of hemorrhagic transformation or pulmonary infection was observed in the CS/LA group. These results indicate that CS/LA may be an EVT option for acute posterior circulation stroke patients.


Assuntos
Isquemia Encefálica , Procedimentos Endovasculares , AVC Isquêmico , Acidente Vascular Cerebral , Humanos , Isquemia Encefálica/diagnóstico , Isquemia Encefálica/terapia , Isquemia Encefálica/complicações , Anestesia Local/efeitos adversos , AVC Isquêmico/etiologia , Sedação Consciente/efeitos adversos , Sedação Consciente/métodos , Resultado do Tratamento , Procedimentos Endovasculares/efeitos adversos , Procedimentos Endovasculares/métodos , Anestesia Geral/efeitos adversos , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/terapia , Acidente Vascular Cerebral/etiologia , Hemorragias Intracranianas/etiologia , Trombectomia/efeitos adversos
10.
J Evid Based Med ; 16(4): 477-484, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38130029

RESUMO

OBJECTIVE: This study compares the safety and efficacy of general anesthesia (GA) and nongeneral anesthesia (non-GA) on functional outcomes in patients receiving endovascular therapy for ischemic stroke. METHODS: All available studies on the anesthetic management of patients with acute ischemic stroke in PubMed, the Cochrane Central Register of Controlled Trials, and Embase were included. We also compared the clinical outcomes in the studies with subgroup analyses of the occlusion site (anterior vs. posterior circulation) and preretriever group versus retriever group. Functional independence, mortality, successful recanalization, hemodynamic instability, intracerebral hemorrhage, and respiratory complications were considered primary or secondary outcomes. RESULTS: A total of 24,606 patients in 60 studies were included. GA had a lower risk of 90-day functional independence (OR = 0.67, 95% CI 0.58 to 0.77), higher risk of 90-day mortality (OR = 1.29; 95% CI 1.15 to 1.45), and successful reperfusion (OR = 1.18; 95% CI 1.94 to 6.82). However, there were no differences in functional independence and mortality between GA and non-GA at 90 days after the procedure. CONCLUSION: The study shows poorer results in the GA group, which may be due to the inclusion of nonrandomized studies. However, analysis of the RCTs suggested that the outcomes do not differ between the two groups (GA vs. non-GA). Thus, general anesthesia is as safe as nongeneral anesthesia under standardized management.


Assuntos
Isquemia Encefálica , Procedimentos Endovasculares , AVC Isquêmico , Acidente Vascular Cerebral , Humanos , Acidente Vascular Cerebral/etiologia , Isquemia Encefálica/terapia , Isquemia Encefálica/complicações , Resultado do Tratamento , Anestesia Geral/efeitos adversos , Anestesia Geral/métodos , Procedimentos Endovasculares/efeitos adversos , Procedimentos Endovasculares/métodos
11.
Cureus ; 15(9): e45861, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37881373

RESUMO

Mechanical thrombectomy (MT) has been established as a standard of care for patients with stroke due to anterior circulation large vessel occlusion (AC-LVO). Due to a lack of robust evidence for the effectiveness of mechanical thrombectomy, intravenous thrombolysis (IVT) is still the only approved first-line acute reperfusion strategy for posterior circulation large vessel occlusion (PC-LVO). This systematic review analyzes and reports on the effectiveness and safety of MT in PC-LVO. A literature review was performed to identify all studies of patients with acute ischemic stroke due to PC-LVO who underwent MT with second-generation devices (stent retrievers and/or aspiration devices) that were reported between January 2017 and January 2023. The primary outcome was functional independence at 90 days, defined as a modified Rankin (mRS) score of ≤2. Secondary outcomes were successful recanalization (modified treatment in cerebral infarction score (mTICI) 2b/3), symptomatic intracerebral hemorrhage (sICH), and mortality at 90 days post-procedure. We looked at 13 studies with a total of 30,407 participants in four meta-analyses and 5951 participants in nine observational studies. In most studies, patients in the PC-LVO group were male and younger than the AC-LVO group. Higher baseline National Institutes of Health Stroke Scale (NIHSS) score, lower rates of IVT, longer onset-to-groin puncture time, lower likelihood of sICH, higher 90-day mortality rates, and higher futile recanalization rates were frequently observed in the PC-LVO group with a large discrepancy in the likelihood of functional independence at 90 days with majority studies showing comparable rates. Hence, in patients with acute ischemic stroke caused by the PC-LVO, successful reperfusion can be achieved via MT, though at the cost of higher mortality rates. Such futile recanalization can be avoided with the refinement of procedures through technical improvements, skills training, and recognition of reliable predictors associated with it, which might help increase the efficacy of MT in PC-LVO. Additionally, future large-scale RCTs comparing patient selection and interventional strategies to avoid futile interventions are also needed.

12.
Cureus ; 15(9): e44663, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37799226

RESUMO

Top of the basilar syndrome (TBS) is defined as the presence of multiple ischemic lesions on magnetic resonance image (MRI) including more than two territories supplied by branches of the distal portion of the basilar artery, causing symptoms such as dizziness, diplopia, ataxia, and acute cognitive decline that can lead to quadriplegia and death. Diagnosing TBS is challenging because it can mimic other conditions such as thalamic hemorrhages or vertebrobasilar ischemia, and requires advanced imaging. Although the prognosis for these patients is poor, rehabilitation is essential for their recovery. This case describes a healthy 28-year-old woman who presented with headache, vomiting, and tonic-clonic seizures sent to the hospital with a stroke diagnosis.

13.
J Emerg Med ; 65(5): e414-e426, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37806810

RESUMO

BACKGROUND: Posterior circulation (PC) stroke in adults is a rare, frequently misdiagnosed, serious condition that carries a high rate of morbidity. OBJECTIVE OF THE REVIEW: This review evaluates the presentation, diagnosis, and management of PC stroke in the emergency department (ED) based on current evidence. DISCUSSION: PC stroke presents most commonly with dizziness or vertigo and must be distinguished from more benign diagnoses. Emergency clinicians should consider this condition in patients with dizziness, even in younger patients and those who do not have traditional stroke risk factors. Neurologic examination for focal neurologic deficit, dysmetria, dysarthria, ataxia, and truncal ataxia is essential, as is the differentiation of acute vestibular syndrome vs. spontaneous episodic vestibular syndrome vs. triggered episodic vestibular syndrome. The HINTS (head impulse, nystagmus, and test of skew) examination can be useful for identifying dizziness presentations concerning for stroke when performed by those with appropriate training. However, it should only be used in patients with continuous dizziness who have ongoing nystagmus. Contrast tomography (CT), CT angiography, and CT perfusion have limited sensitivity for identifying PC strokes, and although magnetic resonance imaging is the gold standard, it may miss some PC strokes early in their course. Thrombolysis is recommended in patients presenting within the appropriate time window for thrombolytic therapy, and although some data suggest endovascular therapy for basilar artery and posterior cerebral artery infarcts is beneficial, its applicability for all PC strokes remains to be determined. CONCLUSIONS: An understanding of PC stroke can assist emergency clinicians in diagnosing and managing this disease.


Assuntos
Nistagmo Patológico , Acidente Vascular Cerebral , Adulto , Humanos , Tontura/diagnóstico , Tontura/etiologia , Vertigem/diagnóstico , Vertigem/etiologia , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/diagnóstico , Imageamento por Ressonância Magnética/métodos , Serviço Hospitalar de Emergência , Nistagmo Patológico/diagnóstico , Nistagmo Patológico/etiologia
14.
Cureus ; 15(9): e45128, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37842404

RESUMO

Prosopagnosia describes the inability to recognize others by their faces, which may be hereditary or acquired. Acquired cases result from intracranial lesions such as intracranial hemorrhage or ischemia. This case demonstrates acquired prosopagnosia secondary to an intracranial hemorrhage and thus exemplifies the importance of early symptom recognition for appropriate diagnosis and management. A 58-year-old female presented to the emergency department with a chief complaint of the worst headache of her life along with nausea and vomiting. She also reported that she was unable to recognize her children in photos and although she knew her husband was with her, she did not recognize his face. Physical examination revealed no focal motor deficits. Computed tomography angiography of the brain revealed intracerebral hemorrhage of the right occipital lobe. Acquired prosopagnosia can be the only presenting symptom of intracranial pathology. It is most commonly caused by intracranial hemorrhage, as shown in this case report. This demonstrates a unique symptom of posterior circulation strokes that are commonly misdiagnosed in the emergency department.

15.
Front Neurol ; 14: 1256826, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37808489

RESUMO

Background: Video head impulse tests (vHITs), assessing the vestibulo-ocular reflex (VOR), may be helpful in the differential diagnosis of acute dizziness. We aimed to investigate vHITs in patients with acute posterior circulation stroke (PCS) to examine whether these findings could exhibit significant abnormalities based on lesion locations, and to evaluate diagnostic value of vHIT in differentiating dizziness between PCS and vestibular neuritis (VN). Methods: We prospectively recruited consecutive 80 patients with acute PCS and analyzed vHIT findings according to the presence of dorsal brainstem stroke (DBS). We also compared vHIT findings between PCS patients with dizziness and a previously studied VN group (n = 29). Receiver operating characteristic (ROC) analysis was performed to assess the performance of VOR gain and its asymmetry in distinguishing dizziness between PCS and VN. Results: Patients with PCS underwent vHIT within a median of 2 days from stroke onset. Mean horizontal VOR gain was 0.97, and there was no significant difference between PCS patients with DBS (n = 15) and without (n = 65). None exhibited pathologic overt corrective saccades. When comparing the PCS group with dizziness (n = 40) to the VN group (n = 29), patients with VN demonstrated significantly lower mean VOR gains in the ipsilesional horizontal canals (1.00 vs. 0.57, p < 0.001). VOR gain and their asymmetry effectively differentiated dizziness in the PCS from VN groups, with an area under the ROC curve of 0.86 (95% CI 0.74-0.98) and 0.91 (95% CI 0.83-0.99, p < 0.001), respectively. Conclusion: Significantly abnormal vHIT results were rare in patients with acute PCS, even in the presence of DBS. Moreover, vHIT effectively differentiated dizziness between PCS and VN, highlighting its potential for aiding differential diagnosis of acute dizziness.

16.
Cureus ; 15(8): e43165, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37692677

RESUMO

Basilar artery (BA) occlusion is a rare and devastating cause of ischemic stroke. Presenting symptoms are frequently non-specific and include dizziness, vertigo, nausea, vomiting, headache, and, rarely, hypoacusis. Clinical history and appropriate neurological evaluation are essential for diagnosis. We present the case of a 65-year-old female with dizziness, vomiting, dysarthria, and hearing loss, progressing to right-side hemiparesis and decreased level of consciousness culminating in a coma in just a few hours. She had an atherothrombotic BA occlusion and was submitted to mechanical thrombectomy with full artery recanalization, resulting in rapid neurological improvement in the first days after treatment and almost full recovery during the following months. Early suspicion of posterior circulation stroke from non-specific symptoms is paramount for correct diagnosis and timely treatment, which has an important impact on disability and mortality. Early and complete BA recanalization can result in a positive outcome in a disease that would otherwise be extremely severe. All physicians should be aware of a possible posterior circulation stroke in patients presenting with dizziness, vertigo, vomiting, or sudden hypoacusis and should meticulously search for specific signs or symptoms of neurological dysfunction such as nystagmus, gaze palsies, dysarthria, hemiparesis, or a decreased level of consciousness.

17.
Eur J Radiol Open ; 11: 100523, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37745629

RESUMO

Objective: This narrative review discusses posterior circulation cerebral infarcts (PCCI) and provides an update given recent randomized trials in the management of basilar artery occlusion (BAO). We examine clinical characteristics, imaging protocols, management updates, and outcomes of PCCI. Methods: The following databases were searched: MEDLINE, Scopus, Google Scholar, and Web of Science for articles on PCCI. We included randomized trials and observational studies in humans. We also reviewed relevant references from the literature identified. Results: PCCI and BAO is associated with high morbidity and mortality. Early assessment and accurate diagnosis of PCCI remains a clinical challenge. Neuroimaging advances have improved early detection, but barriers remain due to costs and availability. Recent randomized trials provide new insights for BAO patients and support the efficacy of endovascular thrombectomy. Discussion: PCCI requires specific diagnostic and management that is distinct from anterior circulation stroke. While further studies are needed in varied populations and in the subset of BAO patients presenting with milder deficits, growing randomized data support the treatment of BAO patients with endovascular thrombectomy.

18.
J Clin Med ; 12(16)2023 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-37629223

RESUMO

BACKGROUND: Reperfusion treatment (RT) is administered to individuals with posterior circulation strokes (PCS) later and less frequently. We aimed to study the impact of demographic and clinical factors on the decision for RT in PCS. METHODS: We conducted a retrospective analysis of the data from 500 subjects admitted to the tertiary stroke centre's emergency department between 2018 and 2020 due to PCS. Demographic and clinical factors were analysed among three groups: the RT group, the group with no RT because of absolute contraindications (ACI), and the group with no RT because of relative contraindications (RCI). RESULTS: Of the patients, 202 (40.3%) were female. The median NIHSS was four (4), and the subjects' median age was 69 (18). RT was performed on 120 (24%) subjects. FAST symptoms (OR-5.62, 95% CI [2.90-12.28]) and higher NIHSS (OR-1.13, 95% CI [1.09-1.18]) at presentation, atrial fibrillation (OR-1.56, 95% CI [1.02-2.38]), hypertension (OR-2.19, 95% CI [1.17-4.53]) and diabetes (OR-1.70, 95% CI [1.06-2.71]) increased the chance of RT. Late arrival was the most prevalent ACI for 291 (58.2%) patients. FAST-negative subjects (OR-2.92, 95% CI [1.84-4.77]) and males (OR-1.58, 95% CI [1.11-2.28]) had a higher risk of arriving late. Because of RCI, 50 (10%) subjects did not receive RT; the majority were above 80 and had NIHSS ≤ 5. Subjects with RCI who received the RT had a higher NIHSS (4 vs. 3, p < 0.001), higher hypertension (59 (92.2%) vs. 35 (77.8%), p = 0.032) and heart failure (23 (35.9%) vs. 7 (15.6%), p = 0.018) prevalence. There was a trend for less RT in females with RCI. CONCLUSIONS: Late arrival was the most common barrier to RT, and the male gender increased this risk. because of relative contraindications, 10% of subjects were not considered for RT. The presence of FAST symptoms, vascular risk factors, and a higher NIHSS increased the chance of RT.

19.
Cureus ; 15(6): e41096, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37519489

RESUMO

This is a case report of an 83-year-old female who presented to the emergency department within eight hours of symptom onset. A CT angiogram revealed a distal basilar artery occlusion, as well as a perfusion deficit in the right superior cerebellar artery. Her symptoms fluctuated, and she was started on a heparin drip, but later in the evening her symptoms worsened. A mechanical thrombectomy was performed by interventional radiology. The following morning, most of the patient's deficits had resolved, and, when seen in the clinic several weeks later, she continued to be asymptomatic. This case report highlights the importance of timely diagnosis and intervention in the management of distal basilar artery occlusion.

20.
Cureus ; 15(5): e38771, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37303369

RESUMO

Homocysteine is a toxic, sulphur-containing intermediate of methionine metabolism. Hyperhomocysteinemia has been proposed as an important risk factor for ischemic stroke. We present the case of a 39-year-old male who sustained a cerebrovascular accident with left hemiparesis two years back; the patient was not compliant with his medications, and now presented with complaints of giddiness, reduced vision, and double vision. Vision disturbances were bilateral, acute in onset, progressive over time, and predominantly affected the peripheral vision. On ophthalmic examination, homonymous hemianopia was noted, and finger counting was absent in both eyes. Confrontation test revealed a bilateral reduced field of vision more so in the left eye. Baseline investigations were unremarkable except for mildly elevated serum. Homocysteine and neuroimaging showed acute infarct with hemorrhagic transformation in the right occipito-parietal region and small acute non-hemorrhagic infarcts in the right thalamus and right side of the splfingerenium of the corpus callosum. Given the visual disturbance, Humphrey visual field (HVF) perimetry was done and it revealed left homonymous congruous hemianopia, likely due to right parietal lobe infarct. The patient had recurrent infarcts previously involving anterior and posterior circulation.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...