Transsynaptic retrograde degeneration of optic neuropathy (TRDON) refers to the degeneration and/or apoptosis of presynaptic neurons (retinal ganglion cells) caused by damage to the lateral geniculate body and post-geniculate visual pathway. At present, the pathogenesis of TRDON is secondary apoptosis of Pβ-type retinal ganglion cells, resulting in the atrophy of optic tract, thinning of the retinal nerve fiber layer and retinal ganglion cell layer thickness and declining of retinal microvascular density, which are consistent with the visual field defect attributed to the primary disease. Of which, the thinning of the retinal ganglion cell layer thickness is considered as the characteristic of TRDON. Now, there is little understanding and related research on TRDON in China. Clinicians should pay attention to the characteristics and severity, occurrence time and location of the above structural changes in these patients through optical coherence tomography, and monitor the activity and progress of the lesions, so as to determine the cut-off point for drug intervention and the drug targets for developing new treatment methods, and bring benefits for patients in partial visual function recovery and disability reduction.
Immune checkpoint inhibitors (ICI) have revolutionized the field of oncology by regulating the interaction between immune cells and cancer cells and promoting the disinhibition of the immune system, thus targeting various types of malignant tumors. However, the regulation of the immune system can also trigger related adverse reactions. Currently, there are no specific clinical guidelines for the treatment of these adverse reactions. Treatment decisions largely depend on clinical judgment and experience.The pathogenesis of ICI-related ocular adverse events is not fully understood at present. Further research on the specific mechanisms of action can provide new insights into the early diagnosis and treatment of ICI-related ocular adverse events.
ObjectiveTo observe the clinical characteristics and optical coherence tomography (OCT) features of pseudopapilledema (PPE) combined with peripapillary hyper-reflective ovoid mass-like structures (PHOMS) in children. MethodsA retrospective observational study. From October 2019 to May 2021, total 22 eyes from 12 children diagnosed as PPE combined with PHOMS in the Neuro-ophthalmology Department of The First Hospital of Xi’an (Affiliated of The First Hospital of Northwest University) were recruited. Among the children, 6 were male and 6 were female. The average age was (10.6±2.7) years. The average course from disease onset to diagnosis of PPE combined with PHOMS was (8.0±7.5) months. All patients underwent best corrected visual acuity (BCVA), relative afferent papillary defect (RAPD), Ishihara's test, fundus photography, OCT, fundus autofluorescence (FAF), ocular B-mode ultrasound, visual field and patternvisual evoked potential (P-VEP). The clinical and OCT characteristics of the patients were observed. ResultsThe anterior segments of the patients were normal. The intraocular pressures and Ishihara's test were all normal. All RAPD were negative. Total 22 eyes, BCVA was 1.0 in 21 eyes and one eye was 0.12. The fundus photography revealed blurred optic discs margin, showing mild to moderate edema-like elevation with more prominent in the nasal parts, presenting as a “C” shape halo. No obvious abnormal fluorescence was observed in FAF. The OCT scan of involvement eyes showed an elevated appearance in vary degrees, and the sharply marginated ovoid hyper-reflective mass-like structures which laterally herniated into the peripapillary region under retinal nerve fiber layer and above the Bruch membrane were detected with consecutive nasal enlargement scanning, corresponding to the nasal parts in the fundus photography. The higher degree of elevation, the larger the volume. Macular retina pigment epithelium layer and ganglion cell thickness were normal. Ocular B-mode ultrasound showed that the head of the optic nerve in the posterior wall of the eyeball (in front of the optic disc) was elevated in all affected eyes, and there was no strong signal echo in it. Visual field examination showed physical blind spot enlargement in 3 eyes and visual field defect in 2 eyes. P-VEP examination showed that the peak was slightly delayed in 3 eyes and the amplitude was slightly reduced in 3 eyes. ConclusionsEnlarged nasal optic disc OCT scan can improve the detection rate of PHOMS. PHOMS were detected bilaterally in the cases with binocular PPE while only in the effected eye in the cases of monocular PPE; the higher degree of PPE, the lager volume of PHOMS. PHOMS were could contribute to the diagnosis of PPE in children.
ObjectiveTo preliminary investigate the impact of the diagnosis-related groups (DRG) payment method reform on the diagnosis and treatment of inpatient medical insurance patients with neuromyelitis optica spectrum disorders (NMOSD), and to propose potential improvement strategies. MethodsA single-center, retrospective study. From October 1, 2020, to September 30, 2022, 44 hospitalized medical insurance patients with acute-phase NMOSD diagnosed and treated at the First Affiliated Hospital of Northwest University (Xi'an First Hospital) were included in the study. Among them, there were 11 males and 33 females, with an average age of (40.8±20.2) years. According to the implementation time of DRG payment, patients were divided into two groups: group A, which consists of cases one year before the implementation of DRG payment from October 1, 2020 to September 30, 2021, and group B, which consists of cases one year after the implementation of DRG payment from October 1, 2021 to September 30, 2022, with 20 and 24 cases, respectively. Detailed information such as hospitalization duration, treatment methods, and hospitalization costs of the two groups of patients was collected. Comparative analysis was conducted on hospitalization costs and treatment methods between the two groups. For intergroup comparison, t-test was used for normally distributed data, and Mann-Whitney U test was used for skewed distributed data. ResultsAmong the 44 patients, 5 cases (5/24, 20.8%) received plasma exchange (PE) treatment, all of whom were in group B. The numbers of patients who received and did not receive intravenous immunoglobulin (IVIG) treatment were 9 and 11 in group A, respectively, and 7 and 12 in group B (except for 5 cases who received PE treatment), respectively. Compared with group A, there was no significant decrease in hospitalization duration (t=0.004) and total hospitalization costs (Z=0.036), as well as costs for western medicine (Z=0.036), examinations (Z=0.011), laboratory tests (Z=0.040), treatments (Z=0.017), and nursing (Z=3.131) in group B, and the differences were not statistically significant (P＞0.05). For patients receiving PE treatment, except for the cost of western medicine (Z=0.062, P=0.804), the other costs (Z=8.288, 5.013, 11.400, 10.925, 9.126) were significantly higher than those of patients not receiving PE treatment, and the hospitalization duration (t=20.474) was significantly prolonged, with statistically significant differences (P＜0.05). The total hospitalization costs of patients receiving IVIG treatment were significantly higher than those not receiving IVIG treatment in both group A and group B, with statistically significant differences (Z=7.690, 10.314; P＜0.05). There was no statistically significant difference in the comparison of total hospitalization costs between patients receiving IVIG treatment in group A and group B (Z=0.137, P＞0.05). ConclusionsThere is no significant decrease in various hospitalization costs of NMOSD medical insurance patients in Xi'an after the implementation of DRG payment, especially for patients receiving PE treatment. It is suggested to optimize the rate stratification of NMOSD patients when implementing DRG payment methods.
ObjectiveTo investigate the clinical characteristics of vascular neuro-ophthalmology in patients with central retinal artery occlusion (CRAO). MethodsA single-center, prospective clinical study. From January 2018 to December 2020, 49 eyes of 49 CRAO patients of The Neuro-ophthalmology Department of Xi'an First Hospital were included in the study. Data on patient demographic characteristics, vascular risk factors, disease characteristics, digital subtraction angiography (DSA) imaging characteristics of internal carotid arteries, treatment, treatment-related adverse events, and 1-month follow-up vascular events were collected. All patiens were examined by visual acuity, head CT and or magnetic resonance imaging. At the same time, 35 cases of internal carotid artery vascular DSA were examined; 14 cases of head and neck CT angiography were examined. The anatomical variation of the extracranial segment of the internal carotid artery was divided into tortuous, tortuous, and coiled; the aortic arch was divided into type Ⅰ, type Ⅱ, type Ⅲ, and bovine type. Intravenous thrombolysis, arterial thrombolysis, conservative treatment were performed. The follow-up time was 1 month after treatment. Functional vision was defined as vision ≥20/100. Vascular events were strokes, cardiovascular events, deaths and neovascular glaucoma during follow-up. ResultsAmong 49 eyes of 49 cases, 40 eyes were male (81.6%, 40/49), and 9 eyes were female (18.4%, 9/49); the average age was 60.7±12.9 years. There were 33, 17, and 16 cases with hypertension, type 2 diabetes, and cerebrovascular disease, respectively; 27 and 34 cases had a history of smoking and tooth loss, respectively. Taking antihypertensive, hypoglycemic, antiplatelet aggregation/anticoagulation, and hypolipidemic drugs were 15, 5, 8, and 5 patients, respectively. There were 11 cases of transient amaurosis before the onset, and 17 cases of CRAO after waking up. There were 33 cases (67.3%, 33/49) with infarction of the affected side of the brain tissue. DSA was performed in 35 cases, and the stenosis rate of the internal carotid artery on the affected side was 70%-99% and 100% were 3 (8.6%, 3/35) and 4 (11.4%, 4/35) cases, respectively. The ophthalmic artery on the affected side originated from the external carotid artery in 5 cases (14.3%, 5/35). There were 17 (54.8%, 17/31) and 2 (6.5%, 2/31) cases of tortuousity and kinking in the extracranial segment of the internal carotid artery. There were 15 (42.9%, 15/35), 6 (17.1%, 6/35), and 2 (5.7%, 2/35) cases of aortic arch type Ⅱ, type Ⅲ, and bovine type, respectively. Intravenous thrombolysis and arterial thrombolysis were performed in 13 and 29 cases, respectively. Complications occurred in 2 cases during treatment; 3 cases of symptoms fluctuated after treatment, and 10 cases of asymptomatic new infarcts occurred in imaging studies. Forty-eight cases were treated with antiplatelet aggregation/anticoagulation and hypolipidemic treatment. At discharge and 1 month after treatment, the recovery of functional vision was 7 and 17 cases, respectively. One month after treatment, 1 case died because myocardial infarction; 2 cases of neovascular glaucoma occurred. ConclusionThe proportion of CRAO patients with vascular risk factors and internal carotid artery abnormalities on the affected side is relatively high; the prognosis is relatively good after intravenous thrombolysis and/or arterial thrombolysis and secondary stroke prevention.