Ischaemic posterior circulation stroke in State of Qatar

Akhtar, Naveed; Kamran, Saadat; Deleu, Dirk; D’Souza, Atlantic; Miyares, Francisco Ruiz; Elsotouhy, Ahmed; Al-Hail, Hassan; Mesraoua, Boulenouar; Own, Ahmed; Salem, Khaled; Kamha, A.; Osman, Yasir

doi:10.1111/j.1468-1331.2009.02709.x

Cited by 43 publications

(47 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Previous studies, the New England Medical Center Posterior Circulation Registry, and a Qatar study presented within-study comparisons of the frequency of the neurological deficits in PCI cohorts; but, these studies did not compare PCI with ACI patients. 11,18 The frequency appeared to vary in some clinical manifestations in these previous studies, as compared with that in our study; however, homolateral paralysis and facial palsy were also found previously to be the most common signs in PCI patients. The divergent frequencies may partly caused by differences in the severity of vertebrobasilar ischemia among stroke populations 11 and the different definitions studies used when classifying the neurological deficits.…”

Section: Discussioncontrasting

confidence: 40%

“…28 Similarly, 2 recent studies showed that the prevalence of altered level of consciousness in PCI patients was much lower (Ͻ10% and 18%, respectively) than was suggested by previous studies. 11,18 These controversies might be caused by a different distribution of stroke subtypes or different age groups. At the least, the present study revealed that additional investigations are required to determine whether consciousness disturbance should be considered diagnostic for PCI.…”

Section: Tao Et Al Posterior Versus Anterior Circulation Infarction 2063mentioning

confidence: 99%

See 1 more Smart Citation

Posterior Versus Anterior Circulation Infarction

Tao

Liu

Fisher

et al. 2012

Stroke

106

View full text Add to dashboard Cite

Background and Purpose-Distinguishing between symptoms of posterior circulation infarction (PCI) and anterior circulation infarction (ACI) can be challenging. This study evaluated the frequency of symptoms/signs in the 2 vascular territories to determine the diagnostic value of particular symptoms/signs for PCI. Methods-Neurological deficits were reviewed and compared from 1174 consecutive patients with a diagnosis of PCI or ACI confirmed by magnetic resonance imaging in the Chengdu Stroke Registry. The diagnostic value of specific symptoms/signs for PCI was determined by measuring their sensitivity, specificity, positive predictive value (PPV), and the OR.

show abstract

Section: Discussioncontrasting

confidence: 40%

Section: Tao Et Al Posterior Versus Anterior Circulation Infarction 2063mentioning

confidence: 99%

Posterior Versus Anterior Circulation Infarction

Tao

Liu

Fisher

et al. 2012

Stroke

106

View full text Add to dashboard Cite

show abstract

“…When reported, common types of acquired nystagmus are gaze evoked, multi-vector and upbeat [66]. The studies described to date, frequently report when the stroke has affected the posterior circulation, including the cerebellum [42, 60,67,68]. No studies have reported the prevalence of nystagmus in anterior circulation strokes in isolation.…”

Section: Nystagmusmentioning

confidence: 99%

Post-stroke Visual Impairment: A Systematic Literature Review of Types and Recovery of Visual Conditions

Hepworth

Rowe

Walker

et al. 2016

View full text Add to dashboard Cite

“…According to our results, we can suggest two reasons for these misdiagnoses of WS. First, the characteristic symptoms of WS are rather mild; it has been reported that the severity of brainstem infarction is relatively low and prognosis is good (Glass et al., 2002; Akhtar et al., 2009; Fitzek et al., 2001). Indeed, the mean NIHSS score of our patients with WS was also as low as 3.1, and some patients came to the outpatient clinic by foot and with only minor complaints.…”

Section: Discussionmentioning

confidence: 99%

Utility of thermographic measurements of laterality of body surface temperature to prevent misdiagnosis of acute Wallenberg's syndrome

et al. 2018

View full text Add to dashboard Cite

IntroductionAcute Wallenberg's syndrome (WS) is sometimes misdiagnosed as a nonstroke disease including auditory vertigo, and careful neurological examination is required for a precise diagnosis. Lateral difference of body surface temperature (BST) had been reported as a symptom of WS, although further details of this symptom are currently lacking. Our aim was to investigate the laterality of BST of patients with acute WS using thermography and the usefulness of thermography to detect acute WS.MethodsNine consecutive patients with new‐onset acute WS and nine patients with acute pontine infarction, intended for a comparison, were enrolled. Using thermography, the BST of patients was measured and initially evaluated visually. Detailed BSTs were measured using dedicated software. We examined the relationship between BST and other clinical factors, including first diagnosis, clinical symptoms, and MRI findings.ResultsFour patients with WS (44.44%) were misdiagnosed with nonstroke disease and did not receive a thermography assessment at their first visit; in contrast, all acute pontine infarction patients were diagnosed with brain infarction. Eight patients with WS (89%) showed a laterality of BST at multiple sites, and three of eight patients showed a whole‐body laterality of BST; in contrast, only two pontine infarction patients showed laterality of BST at one or two sites. These lateral BST differences were easily observed visually using thermography within two minutes. The BST laterality gradually decreased over time in almost all patients with WS. The infarction size in the WS patients with whole‐body laterality of BST was craniocaudally larger than in the other patients, and the size was smallest in the patient showing no BST laterality.ConclusionsIn contrast to acute pontine infarction patients, almost all patients with acute WS showed lateral BST differences, which was easily detected with thermography. Thermography may thus be a useful tool to prevent misdiagnosis of acute WS.

show abstract

Ischaemic posterior circulation stroke in State of Qatar

Abstract: The aetiology and lesion topography of PCS in this heterogeneous population differs from the pattern observed in other populations.

Cited by 43 publications

References 18 publications

Posterior Versus Anterior Circulation Infarction

Posterior Versus Anterior Circulation Infarction

Post-stroke Visual Impairment: A Systematic Literature Review of Types and Recovery of Visual Conditions

Utility of thermographic measurements of laterality of body surface temperature to prevent misdiagnosis of acute Wallenberg's syndrome

Contact Info

Product

Resources

About