Retinal hemorrhages

  • 文章类型: Journal Article
    最近爆发的SARS-CoV-2冠状病毒已被宣布为全球大流行。在各种多器官参与中,已经描述了几种眼部表现,如结膜炎和视网膜病变。视网膜病变的患病率和严重程度及其与全身性疾病严重程度的关系尚不清楚。我们做了一个潜在的,对172例确诊为急性COVID-19感染的连续住院患者进行的观察性研究。所有患者在入院时都进行了宽视野眼底摄影筛查。尽管没有眼部或视觉相关症状,我们在19/172例患者(11%)中发现了棉绒斑点(CWS)和/或出血.糖尿病史,超重,在视网膜异常患者中,C反应蛋白升高更为常见,而在没有视网膜发现的患者中更经常观察到系统性高血压病史。在为期3个月的随访中,所有患者的CWS均消退。
    The recent outbreak of the Coronavirus SARS-CoV-2 has been declared a worldwide pandemic. Within various multi-organ involvement, several ocular manifestations have been described, such as conjunctivitis and retinopathy. The prevalence and severity of retinal lesions and their relation to the severity of the systemic disease are unknown. We performed a prospective, observational study on 172 consecutively hospitalized patients with acute confirmed COVID-19 infection. All patients underwent screening widefield fundus photography at the time of hospital admission. Despite no ocular or vision-related symptoms, we found cotton wool spots (CWS) and/or hemorrhages in 19/172 patients (11%). Diabetes history, overweight, and elevated C-reactive protein were more frequently observed among patients with retinal abnormalities, while a history of systemic hypertension was more frequently observed among patients without retinal findings. At a 3-month follow-up visit, CWS had subsided in all patients.
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  • 文章类型: Journal Article
    OBJECTIVE: Until now, the diagnosis of optic nerves hemorrhages in abusive head trauma (AHT) has been obtained only in the postmortem setting. The aim of the IRB-approved study was to assess the presence of optic nerves hemorrhages in AHT patients using 3D-SWI.
    METHODS: Thirteen children with a final confirmed multidisciplinary diagnosis of AHT underwent coronal and axial 3D-SWI imaging of the orbits. The presence of optic nerve sheath (ONS) hemorrhages was defined by thickening and marked 3D-SWI hypointensity of the ONS, resulting in mass effect upon the CSF space. Optic nerve (ON) hemorrhages were defined by areas of susceptibility artifacts in the ON parenchyma. Superficial siderosis was defined by susceptibility artifact coating the ON. Furthermore, data about post-traumatic deformity of the ONS at the head of the optic nerve were collected.
    RESULTS: The average age of the population was 7.9 ± 5.9 months old. The average GCS was 11.8 ± 4.5. The male to female ratio was 7:6. ONS hemorrhages were identified in 69.2% of cases. Superficial siderosis and ON hemorrhages were identified in 38.5 and 76.9% of cases, respectively. 3D-SWI also depicted traumatic deformity of the ONS at the level of the optic nerve head in 10 cases (76.9%). No statistical correlations were identified between RetCam findings and 3D-SWI findings or GCS and ON hemorrhages.
    CONCLUSIONS: This research shows that dedicated MRI with volumetric SWI of the orbits can depict hemorrhages in the ON, ONS, and ONS injury, in AHT victims.
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  • 文章类型: Journal Article
    The prevalence of ocular abnormalities of newborn in China has seldom been reported. To report the implementation of digital imaging in ocular screening of all newborns in multiple centres in China and to describe the abnormal findings of fundus examination, we did the cross-sectional study.
    Fundus examinations were performed on newborns within the 42 days after birth using a RetCam wide-field digital imaging system. Digital images of the posterior pole, superior, nasal and temporal retinal fields of each participant were taken. All newborns were from eights centres across China from January 2009 to July 2017.
    A total of 199 851 newborns were included in the study. We detected 18 198 (9.11%) abnormal cases. The most frequent abnormality was severe retinal haemorrhage (RH) found in 12 810 cases (6.41%). The other anomalies included familial exudative vitreoretinopathy, retinopathy of prematurity, abnormal fundus pigmentation, subconjunctival haemorrhage, choroidal coloboma, idiopathic retinal venous tortuosity, exudative changes and other anomalies with uncertain identities.
    This large-scale study of newborn fundus examination showed a relatively high prevalence of ocular abnormalities. Hundreds of neonates with rare disorders that severely impair ocular health were also detected at an early age. The long-term impact of other anomalies including RHs on the ocular system should be investigated by a perspective study. Our study suggested that fundus examination of newborns can play a beneficial role in ocular health.
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  • 文章类型: English Abstract
    OBJECTIVE: To assess the prevalence, morphology and distribution of retinal hemorrhages in healthy newborns and their relationship to neonatal, maternal and obstetrical factors, and to determine their natural history.
    METHODS: The present study prospectively included 2,031 consecutive healthy newborns. Indirect ophthalmoscopy was performed within 24 hours after birth in all newborns. Infants with retinal hemorrhages were reexamined weekly until the hemorrhage resolved. Annual ophthalmologic follow-up was also scheduled in these children. Neonatal, maternal and obstetric parameters were analyzed in all newborns and compared between newborns with retinal hemorrhages and those without retinal hemorrhages.
    RESULTS: 31.8 % of newborns exhibited retinal hemorrhages. 72.6 % of hemorrhages were bilateral. They tended to be localized around the optic discs and in the posterior pole, but their distribution was variable. Retinal hemorrhages were of variable shapes. The prevalence of retinal hemorrhages was higher in newborns delivered with vacuum-assisted extraction (38 %, P<0.001), intermediate during normal vaginal delivery (32.6 %, P<0.001) and lower with cesarean section (20.8 %). Comparative analysis between elective cesarean section and emergency cesarean showed a higher incidence of retinal hemorrhages in the emergency cesarean group (P=0.006). On multivariate analysis, vacuum-assisted delivery was the only factor associated with a higher prevalence of retinal hemorrhages in newborns (P=0.045). Two thirds of hemorrhages had disappeared by one week after birth. Retinal hemorrhages had resolved in all newborns within four weeks.
    CONCLUSIONS: Birth-related retinal hemorrhages are common (1/3 of our newborns). Vacuum-assisted delivery is the main risk factor in this study. All hemorrhages resolved by one month of age. These findings may help in differential diagnosis with shaken baby syndrome.
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