Magnetic resonance imaging changes and clinical features of reversible posterior leukoencephalopathy syndrome / 中南大学学报(医学版)

OBJECTIVES@#Reversible posterior leukoencephalopathy syndrome (RPLS) is a rare clinical imaging syndrome. The causes of RPLS are complex and diverse, the pathogenesis is not yet clear. The onset is urgent and the onset age span is large, ranging from children to the elderly. The clinical symptoms of RPLS have no significant specificity, which can be manifested as headache, blurred vision, disturbance of consciousness or seizures. Clinicians have little knowledge on the disease, which may lead to misdiagnosis or missed diagnosis. This study aims to analyze and summarize the MRI changes and clinical characteristics regarding RPLS patients, so as to provide basis for rapid diagnosis and timely intervention for this disease.@*METHODS@#The clinical data and complete imaging data of 77 patients with RPLS diagnosed in Xiangya Hospital of Central South University from January 2012 to March 2021 were retrospectively collected. The main image data include T1 weighted imaging (T1WI), T2 weighted imaging (T2WI), T2 liquid attenuation inversion recovery (T2-FLAIR), diffusion weighted imaging (DWI) (b value=1 000×10-6 mm2/s), and apparent diffusion coefficient (ADC). The case group included 63 patients who underwent DWI examination, and 71 normal controls matched in age and sex. The characteristics of patients' magnetic resonance signals and the ADC value of 19 regions of interest (ROI) were analyzed. The differences in bilateral ADC value in the case group, the difference of ADC value between the case group and the normal control group, and the difference of ADC value in the case group before and after treatment were compared.@*RESULTS@#Compared with the normal control group, the ADC value of the right frontal lobe, bilateral parietal lobe, bilateral thalamus, bilateral head of caudate nucleus, left lenticular nucleus, right internal capsule, bilateral temporal lobe and pons in the case group were significantly higher (all P<0.01). There was no significant difference in ADC value of bilateral sides of the case group and before and after treatment in the case group (all P>0.01). The lesions of RPLS were widely distributed and multiple, usually high signal in the posterior parieto temporo occipital lobe or pons of the brain, and involved the cortex and subcortical white matter. Most of them were bilateral, but not completely symmetrical.@*CONCLUSIONS@#The imaging manifestations of RPLS and the occurrence and development of clinical symptoms are basically synchronous. The imaging manifestations are specific. Magnetic resonance imaging can show the range of involvement of RPLS. ADC value can provide information on the severity of the disease and predict the prognosis. There are few reversible diseases. It is very important to fully understand and timely diagnose the disease.

Paroxysmal hypertension with reversible posterior leukoencephalopathy syndrome in a child: an unresolved riddle

Nine year old girl was presented with paroxysmal episodes of hypertensive emergency. She was asymptomatic with normal blood pressure without antihypertensives in between the episodes. MRI brain was suggestive of reversible posterior leukoencephalopathy.' Acute episodes were managed with IV labetalol infusion and amlodipine. She was evaluated extensively to find out the etiology of hypertension. Cardiac and renal causes were ruled out. Work up for pheochromocytoma, hyperaldosteronism, porphyria and vasculitis were negative. The case is reported in view of the rare presentation and the leukoencephalopathy noted in this case.

Clinical significance of combined detection of peripheral miR-182 and IL-17 in the early diagnosis of patients with eclampsia complicated with cerebral infarction in ICU / 中华危重病急救医学

Objective To observe the effect of peripheral blood microRNA-182 (miR-182) combined with interleukin-17 (IL-17) in the early diagnosis of cerebral infarction (CI) in patients with eclampsia. Methods A prospective non-randomized controlled study was conducted. The patients with eclampsia admitted to intensive care unit (ICU) of Liaocheng People's Hospital from January 1st, 2013 to September 30th 2016 were enrolled. Cerebral imaging was conducted in 7 days after admission to make a definite diagnosis of the occurrence of CI, excluding patients with cerebral hemorrhage. Patients were divided into CI group and non-CI group. Twenty healthy women of childbearing age were selected as control group. Peripheral venous blood of all patients with eclampsia at 1 day after admission, the expression of miR-182 was detected by real-time fluorescence quantitative polymerase chain reaction (PCR), regulatory T cells (Treg) and T helper 17 cells (Th17) ratio was detected by flow cytometry, and the level of plasma IL-17 was detected by enzyme linked immunosorbent assay (ELISA). Pearson method was used to analyze the correlation between the indexes. The receiver operating characteristic curve (ROC) was used to analyze the diagnostic value of each index for CI in patients with eclampsia. Results In the 30 patients with eclampsia, there were 13 cases of CI, including 10 case of cerebral venous thrombosis (CVT) and 3 cases of arterial thrombus; 17 cases of non-CI, including 15 cases of reversible posterior leukoencephalopathy syndrome (RPLS) and 2 cases without obvious abnormalities. Compared with control group, the levels of miR-182, Th17% and IL-17 in non-CI group and CI group were significantly higher, and the Treg% was significantly lower. The levels of parameters mentioned above were further increased in CI group than those in non-CI group [miR-182 (2-ΔΔCt): 2.35±0.79 vs. 1.75±0.56, Th17%: (5.16±1.89)% vs. (3.93±1.92)%, IL-17 (ng/L):37.45±6.20 vs. 26.65±5.13, all P < 0.05]. Pearson correlation analysis showed that miR-182 was positively correlated with Th17% and IL-17 (r1 = 0.761, r2 = 0.842, both P < 0.01). ROC curves showed that when the cut-off value of miR-182 was 2.88, the diagnosis sensitivity of preeclampsia CI was 84.6%, the specificity was 82.4%, and area under the ROC curve (AUC) was 0.816 [95%CI confidence interval (95%CI) = 0.641-0.992]; when cut-off value of IL-17 was 34.44 ng/L, diagnosis of preeclampsia CI the sensitivity was 71.5%, the specificity was 85.3%, and AUC was 0.773 (95%CI = 0.602-0.945); when miR-182 was combined with IL-17, the diagnosis sensitivity was 92.3%, specificity was 83.6%, and AUC was 0.896 (95%CI = 0.759-1.032). Conclusions To some extent the expression of miR-182 and IL-17 in peripheral blood can predict the occurrence of CI in early stage. When the two are used together, the predictive value is better.

Posterior Reversible Encephalopathy Syndrome after Head Trauma Surgery in Pediatric Patient without Any Underlying Disease / 대한신경손상학회지

Posterior reversible encephalopathy syndrome (PRES) is a neurological disorder characterized by signs of posterior cerebral edema upon radiographic examination. A 16-year-old girl was involved in motorcycle accident and depressed frontal fracture was presented. She had generalized seizures 3 days after dural repair and fracture reduction. Signal changes was noted on both parietal lobes in the magnetic resonance images and it was completely resolved in 3 months follow-up. We would like to present the case that demonstrated PRES related hypertension after head trauma surgery for cerebrospinal fluid leakage in pediatric patient without any underlying disease.

Reversible posterior leukoencephalopathy syndrome after acute lymphoblastic leukemia chemotherapy: a case report and review of literature / 白血病·淋巴瘤

Objective To investigate the clinical manifestations,treatment and prognosis of reversible posterior leukoencephalopathy syndrome (RPLS) after acute lymphoblastic leukemia chemotherapy.Methods The clinical and imaging data of one case with acute lymphoblastic leukemia were analyzed and literatures were reviewed.Results The main clinical presentation of the patient included abdominal distension,repeated fever with fatigue.Depend on the results of the blood routine test and bone marrow relative examinations,the patient was diagnosed as acute lymphoblastic leukemia pro-B cell high risk group.After the induction therapy and consolidation chemotherapy,hypertension and neurological symptoms were appeared.Combined with the imaging examination,it was diagnosed as RPLS.Recieved active treatment,the patient recovered completely,and the imaging test was improved rapidly.Conclusion The causes of RPLS are variety,and its clinical manifestations and imaging test are non-specific.RPLS has a favorable prognosis.The correct diagnosis and treatment are the key points.

Posterior Reversible Encephalopathy Syndrome (PRES) in a Chronic Alcoholic Patient after Having Steam Bath: A Case Report

Posterior reversible encephalopathy syndrome (PRES) is a rare disorder that is associated with hypertensive crises. In this article, we present a 59-year-old male patient with posterior reversible encephalopathy syndrome (PRES) caused by an acute hypertensive crisis after entering a steam bath in alcohol intoxicated status. In our case, oxidative stress resulting from alcohol metabolism may have lead to blood brain barrier (BBB) breakdown, serving as an aggravating factor in PRES. Thus we must always consider the possibility of PRES when treating chronic alcoholic patients with abnormal neurologic symptoms.

Unilateral Reversible Posterior Leukoencephalopathy Syndrome after Coiling of an Aneurysm

BACKGROUND: Reversible posterior leukoencephalopathy syndrome (RPLS) is radiologically characterized by symmetrical subcortical areas of vasogenic edema that are preferentially parieto-occipital, and it typically resolves after appropriate treatment. CASE REPORT: We present a patient with strikingly unilateral RPLS that developed 21 days after coiling of an anterior communicating artery aneurysm and several days of triple-H therapy. Cortical and subcortical vasogenic edema and enhancement developed only in the left hemisphere, with a pattern suggesting RPLS. After 7 months the lesions had nearly completely resolved. CONCLUSIONS: The pathophysiological mechanism underlying RPLS is still not well understood, which makes it difficult to explain the unilateral appearance in this case. Since the imaging findings may be confused with other conditions such as ischemia, recognition of RPLS after coiling is necessary in order to avoid inadequate treatment.

Clinical characteristics and nursing care of patients with peripartum reversible posterior leukoencephalopathy syndrome / 中国实用护理杂志

Objective To analyze the clinical and nursing care of peripartum reversible posterior leukoencephalopathy syndrome (RPLS).Methods Thirty five cases with peripartum RPLS were retrospectively reviewed.Results All patients developed acutely,22.9％ in the antepartum period and 77.1％ in the postpartum period.The major clinical characteristics were headache (65.7％),seizures(62.9％),visual disturbances (54.3％),altered mental status (22.9％).The most common abnormality on neuro-imaging was edema predominantly involving the cortex and subcortical white matter in the posterior portions of the cerebral hemispheres,including the occipital lobes (77.1％),parietal lobes (65.7％),temporal lobes (28.6％) and frontal lobe (20.0％).MR diffusion-weighted imaging and ADC mapping revealed vasogenic edema.The treatments included aggressive blood pressure control and anticonvulsants with special nursing care.The clinical symptoms and the lesions on neuroimaging improved or resolved within 1 day to 2 months.Conclusions The prognosis for peripartum RPLS is ensured as long as the diagnosis is made properly and reasonable application of care program.

Chronic renal disease and reversible posterior leukoencephalopathy syndrome after liver transplantation / Enfermedad renal crónica y síndrome de leucoencefalopatía posterior reversible después del trasplante del hígado

This is a case report of a patient who developed chronic renal dysfunction and neurologic emergency with multiple cranial lesions after liver transplantation. Immune-complex glomerulonephritis was confirmed on the basis of histopathologic evaluation of the renal biopsy. According to clinical features and brain magnetic resonance imaging follow-up, neuroradiographic atypical reversible posterior leukoencephalopathy syndrome (RPLS) was finally diagnosed.

Este es un reporte de caso de un paciente que desarrolló una disfunción renal crónica y requirió emergencia neurológica con múltiples lesiones craneales luego de un trasplante del hígado. La evaluación histopatológica de la biopsia renal permitió confirmar una glomerulonefritis por complejos inmunes. De acuerdo con las características clínicas y el seguimiento mediante tomografía por resonancia magnética del cerebro (de la resonancia magnética cerebral, finalmente se diagnóstico un síndrome de leucoencefalopatía posterior reversible atípico neuroradiográfico (SLPR).

Report and literature review of two cases of coma induced by beva-cizumab combined with chemotherapy / 中国肿瘤临床

Objective:The clinical features, risk factors, and outcomes of coma were analyzed in patients treated with bevacizum-ab combined with chemotherapy This study also aims to increase the awareness on the toxicity of this regimen. Methods:Two cases of coma induced by bevacizumab combined with chemotherapy were reported. Diagnosis, treatment, and relevant literature were reviewed and discussed. Results:Inadequate blood pressure (BP) control was one of the risk factors leading to coma in patients treated with this therapy. The clinical feature of these patients was reversible posterior leukoencephalopathy syndrome (RLPS). Imaging results showed no typical finding. Reinforced supportive treatment including intensive BP control showed satisfactory outcomes. Conclusion:Coma is common in patients treated with bevacizumab combined with chemotherapy. This regimen should be used cautiously in patients with a history of hypertension. BP should be monitored closely and managed promptly during the combination therapy to prevent coma. RLPS-related coma is reversible after appropriate treatment.

Hypertensive Brainstem Encephalopathy with Atypical Supratentorial Involvement / 대한뇌졸중학회지

Hypertensive brainstem encephalopathy (HBE) is a variant of hypertensive encephalopathy characterized by brainstem and cerebellar involvement. Simultaneous supratentorial involvement in HBE is rarely reported as a vasogenic edema in subcortex and/or periventricular white matter. A 36-year-old woman visited hospital due to headache lasting 7 days before admission. Initial blood pressure was 270/170mmHg. T2-weighted and fluid-attenuated inversion recovery magnetic resonance imaging revealed multifocal high signal intensity lesions in upper medulla, pons, midbrain and cerebellar hemisphere. Especially, atypical periventricular lesions were shown as perpendicular fingers to the lateral ventricle like multiple sclerosis. Her clinical symptoms and radiological lesions were subsided with lowering blood pressure. We herein report a HBE with unusual supratentorial involvement mimicking multiple sclerosis.

Reversible Posterior Leucoencephalopathy Syndrome in Post Streptococcal Glomerulonephritis.

Reversible posterior leukoencephalopathy syndrome is characterized by an acute, usually reversible encephalopathy, with radiological findings that mainly involve the white or grey matter of the parieto-occipital lobes. We report a case of post streptococcal glomerulonephritis presenting as reversible leukoencephalopathy syndrome. Immediate control of hypertension resulted in rapid and complete neurological recovery.

Reversible Posterior Leukoencephalopathy Syndrome during Gestation Period: 4 Cases Report / 中国康复理论与实践

@#ObjectiveTo explore the clinical and imageological features of reversible posterior leukoencephalopathy syndrome(RPLS) during gestation period.MethodsClinical and imageological data of 4 pregnant women with RPLS were analyzed retrospectively.ResultsHeadache, seizure, confusion and visual loss were the mainly clinical manifestations. At MR imaging, the brain typically demonstrated focal regions of symmetric hemispheric edema which may disappear in several weeks. The parietal and occipital lobes were most commonly affected, followed by the frontal lobe cerebral vasoconstriction syndrome. Three of the four patients suffered eclampsia which happened in two days after delivery.ConclusionThere are distinctively clinical features in posterior leukoencephalopathy syndrome during gestation period. Most of them are invovled in patients with eclampsia.

A Case of Reversible Posterior Leukoencephalopathy Syndrome in a Patient with ABO Incompatible Kidney Transplantation / 대한신장학회지

Reversible posterior leukoencepalopathy syndrome (RPLS) was noted by a reversible syndrome of headache, altered mental status, seizure, and visual loss associated with findings indicating predominantly posterior leukoencephalopathy on imaging studies. We report a successful treatment of RPLS after secondary ABO incompatibility kidney transplantation with blood pressure control. A 41-year-old female whose primary kidney disease was chronic glomerulonephritis had graft failure developed after living donor kidney transplantation (1st kidney transplantation). She was admitted to our hospital for 2nd ABO incompatibility kidney transplantation. She had undergone 6 times of plasmapheresis and received additional two doses of rituximab (375 mg/m2) and intravenous immunoglobulin (0.5 g/kg) before kidney transplantation. She received basiliximab induction therapy, tacrolimus, steroid and mycophenolate mofetile after transplantation. The ABO antibody titer had been low (below 1:1) and evidences of rejection were not detected. Generalized tonic clonic type seizure, eyeball deviation, facial cyanotic change and loss of consciousness occurred at post operation 7th day. Several minutes later, she recovered her consciousness without disability and neurologic deficit. She did not represent attacks any more after we controlled blood pressure without withdrawal of immunosuppressants or dose reduction.

Clinical and neuroimaging features of reversible posterior leukoencephalopathy syndrome / 中国神经精神疾病杂志

Objective To investigate the clinical and neuroimaging characteristics of patients with reversible posterior leukoencephalopathy syndrome (RPLS). Methods The etiology, clinical manifestations, neuroimaging features, treatment, and prognosis were retrospectively analyzed in 8 patients (5 males and 3 females) with RPLS. Results The causes of RPLS included systemic lupus erythematosus (2 cases) eclampsia (one case), primary hypertension (one case), fungal encephalitis (one case), multiple myeloma (one case), renal transplantation (one case), immunosuppressant (three cases), chemotherapy (one case) and antifungal agent (one case). The clinical manifestations of these patients included headaches, seizures, visual abnormalities, and consciousness or mental disorders. Magnetic resonance imaging (MRI) of the head mainly showed symmetrical abnormalities in the posterior regions of the brain, as evidenced by low or equal signal on T_1WI, and high signal on T_2WI and FLAIR images. After treatment with antihypertensive agents, dehydration therapy, and heteropathy for 2～3 weeks, the neurological deficits of the patients were almost resolved and the initial lesions disappeared completely or almost completely in all patients at the follow-up MRI. Conclusions RPLS is a clinical entity characterized by reversible white matter damage in posterior brain. Prompt diagnosis and treatment may result in reversible resolution of its clinical symptoms and neuroradiological lesions.

A Case of Reversible Posterior Leukoencephalopathy Syndrome associated with Low dose Intravenous Immunoglobulin Therapy after Induction Chemotherapy in Acute Myeloid Leukemia

No abstract available.

A case of reversible posterior leukoencephalopathy syndrome (RPLS) with eclampsia / 대한산부인과학회지

The reversible posterior leukoencephalopathy syndrome (RPLS) was first described by Hinchey et al. It is characterized by reversible posterior predominant white and gray matter lesions on brain magnetic resonance imaging (MRI) in patients with renal insufficiency or hypertension, or immunosuppression. The findings on neuroimaging are characteristic of subcortical edema without infarction. Patients with RPLS show various kinds of neurologic abnormalities characterized by headache, nausea, vomiting, visual disturbances, altered mental status, decreased alertness, seizures, and focal neurologic signs. The clinical and radiological findings usually resolve within two to three weeks when the underlying cause is removed. In this report we describe the case of RPLS with eclampsia in a 24-year-old woman, which appears to be involved in areas of the occipital, frontal, and parietal lobes. A brief review of the literature is also presented.

Reversible Posterior Leukoencephalopathy Syndrome in a Patient withSystemic Lupus Erythematosus Treated with Cyclosporine / 대한류마티스학회지

Reversible posterior leukoencephalopathy syndrome (RPLS) is characterized clinically by headache, seizure, altered mental status and visual impairment. Neuroimaging shows reversible white matter edema predominantly in the parietal and occipital lobes. RPLS has been associated with a variety of conditions, including hypertensive encephalopathy, renal failure, immunosupressive therapy, and autoimmune diseases such as systemic lupus erythematosus (SLE). We report a young woman of SLE presented with headache, generalized tonic-clonic seizure and altered mental status, after taking azathioprine and cyclosporine. The brain magnetic resonance images showed bilateral hyperintensitiy in the posterior parietal, occipital, temporal lobes and cerebellum on T2-weighted images and fluid attenuated inversion recovery images, whereas diffusion-weighted images showed isointensity in the same distribution. The patient was improved clinically and radiologically one week after the control of hypertension and discontinuation of cyclosporine.

Reversible Posterior Leukoencephalopathy Synodrome / 国际脑血管病杂志

The etiology of reversible posterior leukoencephalopathy syndrome(RPLS)is more complex.Its pathogenesis has a lot of controversies,and its clinical manifestations are headache, nausea,vomiting,epileptic seizure,consciousness disturbance and visual abnormality.Neuroim- aging examinations have shown that diffuse symmetrical white matter edema is predominantly in the bilateral posterior brain regions.Clinical symptoms and neuroimaging changes can be recov- ered completely after timely and effective treatment.If the treatment is delayed,it may compli- cate with cerebral infarction or hemorrhage,and lead to irreversible damage.

A Case of ReVersible Posterior Leukoencephalopathy Syndrome (RPLS) in a Patients with Chronic Renal Failure / 대한신장학회잡지

The reVersible posterior leukoencephalopathy syndrome (RPLS) describes a syndrome of headaches, confusion, seizures, and visual disturbances associated with transient, predominantly posterior cerebral lesions revealed by neuroimaging. RPLS has been associated clinically with hypertension, immunosuppression, and known triggers include acute renal failure, eclampsia, cyclosporine, and lupus. We report a 45-year-old male with chronic renal failure showed RPLS following hemodialysis and review literatures.