OBJECTIVE: To establish baseline ophthalmic parameters for an endangered, semi-wild population of healthy whooping cranes (Grus americana) (WHCR) and Mississippi sandhill cranes (Grus canadensis pulla) (SACR).
METHODS: Eighteen WHCR and 16 SACR.
METHODS: Ophthalmic examination was performed by a single observer, followed by conjunctival swab collection for aerobic bacterial culture and measurement of tear production (phenol red thread test, PRTT) and corneal diameter (CD) as tolerated. Measurement of the axial globe (AG) length, anterior chamber (AC) depth, lens thickness, vitreous chamber (VC) depth, and pecten length was performed via ocular ultrasound (OUS) as tolerated.
RESULTS: Eyelid cicatrization (n = 1 WHCR), keratitis (n = 2 WHCR), incipient cataracts (n = 1 WHCR, n = 4 SACR), and uveal cysts (n = 1 SACR) were identified. Twenty-one bacterial species were cultured from SACR, while 18 bacterial species were cultured from WHCR. SACR under 6 months old had increased PRTT values compared to older SACR (p = .0432). AG length and VC depth of male WHCR were greater than in female WHCR (p = .0045 and p = .0008, respectively). WHCR less than 6 months old had greater AC depth and lens thickness than WHCR over 6 months (p < .001 and p = .0013, respectively). SACR less than 6 months old had greater AC depth and lens thickness than WHCR over 6 months (p < .0001 and p < .0001, respectively).
CONCLUSIONS: WHCR and SACR are amenable to complete ophthalmic examination. Age-related differences in PRTT in SACR, sexual dimorphism in WHCR, and age-related differences in AC depth and lens thickness in WHCR and SACR were identified.

OBJECTIVE: Detecting increased intracranial pressure early in pediatric patients is essential, as early initiation of therapy prevents morbidity and mortality. The objective of this study was to determine the diagnostic accuracy of the optic nerve sheath diameter (ONSD) measured via ultrasound for the prediction of increased intracranial pressure.
METHODS: Four databases, namely, PubMed, EMBASE, Scopus, and CINAHL, were searched for this systematic review and meta-analysis. The study\'s predefined inclusion criteria considered diagnostic accuracy, cross-sectional, prospective observational, and retrospective studies with a focus on children with elevated intracranial pressure from causes such as traumatic brain injury and cerebral edema, the diagnostic accuracy of the optic nerve sheath diameter measured using ultrasound was assessed. The primary outcome measures included sensitivity and specificity. The study included invasive monitoring (external ventricular drain) and noninvasive measures as the gold standards for increased intracranial pressure. Two authors extracted and reviewed the data. Baseline data, outcome measures, and diagnostic accuracy data were extracted.
RESULTS: Twenty-five studies with 1591 patients and 3143 ONSD measurements via ultrasound were analyzed. The pooled sensitivity and specificity of the ONSD measured via ultrasound for the prediction of increased intracranial pressure were 92% (86%-96%) and 89% (77%-96%), respectively. The pooled positive and negative likelihood ratios were 8.6 and 0.08, respectively.
CONCLUSIONS: Optic nerve ultrasonography stands out as a precise and valuable diagnostic tool applicable across diverse patient populations and clinical scenarios. We recommend routine ocular ultrasound for optic nerve sheath diameter measurement in pediatric patients to increase the accuracy of diagnosing increased intracranial pressure.

暂无摘要。

UNASSIGNED: Idiopathic intracranial hypertension (IIH) typically manifests with headache, accompanied by papilledema and visual loss, and has a higher prevalence in females. In recent years, ocular sonography, particularly, measurement of optic nerve sheath diameter (ONSD), is being investigated for diagnosis of IIH.
UNASSIGNED: A total of 35 patients over the age of 18 years, fulfilling the modified Dandy\'s criteria for diagnosis of IIH were included. Patients underwent assessment with magnetic resonance imaging, lumbar puncture, and ocular sonography to measure ONSD and ocular arterial indices.
UNASSIGNED: The mean ONSD values (in centimeters) in the right eye of patients with IIH was 0.57 ± 0.13, while it was 0.48 ± 0.03 in controls. In the left eye, the mean ONSD value (cm) was 0.59 ± 0.13 in patients with IIH and 0.48 ± 0.03 in controls. ONSD was significantly higher in cases compared to controls (P < 0.001, Welch test). Pulsatility index of the central retinal artery was significantly higher in cases compared to controls (P < 0.001, Welch test). Resistance index of the ophthalmic artery was statistically significant (P < 0.005, Welch test). Receiver operating characteristic curve analysis revealed a cutoff value of 5.1 mm on the right side and 5 mm on the left side had a sensitivity and specificity of more than 80% for IIH diagnosis.
UNASSIGNED: Our study provides insights into the utility of optic nerve sheath measurements and arterial indices in the diagnosis of IIH in a South Indian cohort. Further research is needed to fully understand the longitudinal relationship of these parameters and treatment outcomes in IIH.

暂无摘要。

In acute care environments, accurately assessing complications of intracranial pathology can be challenging. Ocular complications in acute intracranial disease are not consistently evaluated despite their high morbidity. We report on a case of monocular diplopia in a 63-year-old man with subacute traumatic brain injury with localized subarachnoid hemorrhage. Ocular point of care ultrasound (POCUS) identified features of vitreous hemorrhage in one globe, leading to a diagnosis of Terson syndrome and a timely referral to ophthalmology. This finding was made on the medical floor days after the initial presentation during rehabilitation when ophthalmoscopy was not possible, and vitreous hemorrhage had not been identified on presentation. Terson syndrome is a seldom discussed but important complication of intracranial hemorrhage generally associated with poor patient outcomes. Ocular POCUS can provide a useful alternative in assessing ocular complications of acute intracranial disease on the medical floor, particularly when the practicalities of performing ophthalmoscopy are challenged.

OBJECTIVE: To assess the usefulness of ultrasonography in the diagnosis and evaluation of extraocular intra-orbital lesions in pediatric patients.
METHODS: Twenty-three pediatric patients with intra-orbital lesions who underwent both ultrasound and computed tomography/magnetic resonance imaging (CT/MRI) were included. The following parameters were evaluated using ultrasound: 1) lesion detection rate (presence or absence of lesions), 2) lesion characteristics, 3) lesion location (extraconal or intraconal), and 4) the lesion longest linear dimensions, and these were compared using Fisher\'s exact test and Mann-Whitney U test.
RESULTS: Two lesions could not be detected using ultrasound; in the other 21 cases, the lesion characteristics diagnosed by ultrasound were correct. Diagnostic accuracy of detection and characteristics assessment using ultrasound were 91.3% and 91.3%, respectively. The lesion location was not significantly different between the two groups (intraconal/extraconal in those detected using ultrasound versus those in the absence on ultrasound = 7/14 versus 0/2, P > .999); however, in two cases that were not detected on ultrasound, the lesions were located at extraconal. Lesions that were small in longest linear dimensions on CT/MRI were not detected using ultrasound (the longest linear dimensions in lesions detected using ultrasound versus that in the absence of ultrasound: 29.5 ± 8.2 [range, 13-46] versus 10 and 11 mm, P = .043).
CONCLUSIONS: Ultrasonography proved to be useful for visualizing and evaluating intra-orbital lesions except for lesions that were relatively small in size. Therefore, although ultrasound could not detect lesions located behind bone and bone invasion, it could be used for diagnosing and selecting treatment strategies for intra-orbital lesions.

Ocular point of care ultrasound (POCUS) can help make timely recognition of multiple emergent ocular conditions and differentiate these from more benign conditions. While asteroid hyalosis (AH) is benign, it can easily mimic the more potentially serious vitreous hemorrhage on ocular POCUS, as both consist of numerous echogenic opacities within the vitreous with a classic \"washing machine\" appearance with eye movement. However, asteroid hyalosis particles tend to be more discrete, hyperechoic, scintillating, and seen throughout the vitreous. Knowledge of this mimic and ability to recognize the subtle sonographic differences can help differentiate these disease processes, which can influence management and potentially disposition.

Background: Intracerebral hemorrhage (ICH) is associated with high morbidity and mortality. ICH causes increased intracranial pressure (ICP), leading to brain herniation as the disease progresses. Neurological physical exam and monitoring of the disease progression can be challenging due to the impaired consciousness and routine clinical management in this patient population. Given the continuity of the intracranial cavity with the optic nerve subarachnoid space, an increased ICH leads to distension of the optic nerve sheath. We herein examined the correlation between the ICH volume and the optic nerve sheath diameter (ONSD) measured by point of care ultrasound (POCUS). Methods: Patients with ICH diagnosed with a head computed tomography (CT) scan were prospectively enrolled in this study. A portable ultrasound was used to measure the (ONSD); the volume of ICH hematoma, the Acute Physiology And Chronic Health Evaluation IV score, and the Intracerebral Hemorrhage score were collected. A Spearman rank correlation coefficient test was used to assess the relationship between continuous variables. A Wilcoxon rank sum test was used to assess differences in continuous variables between two groups. A p-value less than 0.05 was deemed as statistically significant. Results: A total of 28 subjects were enrolled. A moderate positive correlation was detected between hemorrhage volume and the average ONSD (correlation = 0.4214, p = 0.0255). A weak positive correlation was detected between average ONSD and APACHE IV (correlation = 0.2347, p = 0.2294). A weak moderate positive correlation was detected between average ONSD and ICH score (correlation = 0.1160, p = 0.5566). Conclusions: In this study we demonstrate that ONSD is moderately correlated with hematoma size. A potential application may include serial measurements of the ONSD with ultrasound. This may offer a quick, non-invasive technique that can be used in an intracerebral hemorrhage to monitor the stability or expansion of a hematoma indirectly, and potentially catch a catastrophic event like cerebral herniation.

BACKGROUND: Ocular pathology is common throughout the world. The aim of our work was to study the contribution of mode B ultrasound in the diagnostic and therapeutic management of ocular pathologies in Abidjan.
METHODS: Prospective, descriptive study, carried out at the Abidjan Military Hospital during a period of 3 months. Eye examinations were performed exclusively with a mode B ultrasound scanner by senior radiologists. All patients who performed an ocular ultrasound were included in the study. The epidemioclinical data, the examination request and the ultrasound results were analysed.
RESULTS: We identified 114 cases of ocular ultrasound, i.e. 17% of the ultrasounds performed. The median age was 39.2 years with a male/female sex ratio of 1.15. Decreased visual acuity was the main indication Preoperative assessment for cataract (32.5%) was the most frequent indication. Ultrasound was pathological in almost all cases (98.2%). The most frequent pathology was cataract (77.2%) with predominance of total lens opacifications (45.6%). Other pathologies found were retinal detachment (21.1%) and intraocular hemorrhage (17%).
CONCLUSIONS: The ocular pathology was varied in our context. It predominated in subjects of variable age and more often in males. Ocular ultrasonography in B mode was indicated for diagnostic purposes to explore trauma and visual acuity impairment, but especially for therapeutic purposes to establish. the preoperative assessment of the lesions observed. Its diagnostic sensitivity was 98.1%.
BACKGROUND: La pathologie oculaire est fréquente dans le monde. Le but de notre travail était d\'étudier l\'apport de l\'échographie mode B dans la prise en charge diagnostique et thérapeutique des pathologies oculaires à Abidjan.
UNASSIGNED: Étude prospective, descriptive, réalisée à l\'Hôpital Militaire d\'Abidjan durant une période de3 mois. Les examens oculaires ont été réalisés exclusivement avec un échographe mode B par des radiologues séniors. Tous les patients ayant réalisé une échographie oculaire ont été inclus dans l\'étude. Les données épidémio-cliniques, la demande d\'examen et les résultats de l\'échographie ont été analysés.
UNASSIGNED: Nous avons récencé 114 cas d\'échographie oculaire soit 17% des échographies réalisées. L\'âge médian était de 39,2 ans avec un sex ratio homme/femme de 1,15. La baisse de l\'acuité visuelle constituait la principale indication. Le bilan préopératoire pour la cataracte (32,5%) représentait l\'indication la plus fréquente. L\'échographie était pathologique dans la quasi-totalité des cas (98,2%). La pathologie la plus fréquente était la cataracte (77.2 %) avec prédominance des opacifications totales du cristallin (45,6%). Les autres pathologies retrouvées étaient le décollement de rétine (21,1%) et l\'hémorragie intra oculaire (17%).
CONCLUSIONS: La pathologie oculaire a été variée dans notre contexte. Elle prédominait chez les sujets d\'âge variable et plus souvent de sexe masculin. L\'échographie oculaire en mode B, a été indiquée dans un but diagnostique pour l\'exploration des traumatismes et des baisses de l\'acuité visuelle, mais surtout dans un but thérapeutique pour l\'établissement du bilan préopératoire des lésions observées. Sa sensibilité diagnostique a été de 98,1%.