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Search for the word below: Duret haemorrhage
Number of hits: 5
MAY 30, 2020
The cause of intracerebral, subarachnoid and subdural haemorrhage is different, and the simultaneous appearance in the same case is extremely rare. We describe the case of a patient with a ruptured aneurysm on the distal segment of the middle cerebral artery, with a concomitant subdural and intracerebral haemorrhage, and a subsequent secondary brainstem (Duret) haemorrhage. The 59-year-old woman had hypertension and diabetes in her medical history. She experienced anomic aphasia and left-sided headache starting one day before admission. She had no trauma. A few minutes after admission she suddenly became comatose, her breathing became superficial. Non-contrast CT revealed left sided fronto-parietal subdural and subarachnoid and intracerebral haemorrhage, and bleeding was also observed in the right pontine region. The patient had leucocytosis and hyperglycemia but normal hemostasis. After the subdural haemorrhage had been evacuated, the patient was transferred to intensive care unit. Sepsis developed. Echocardiography did not detect endocarditis. Neurological status, vigilance gradually improved. The rehabilitation process was interrupted by epileptic status. Control CT and CT angiography proved an aneurysm in the peripheral part of the left middle cerebral artery, which was later clipped. Histological examination excluded mycotic etiology of the aneurysm and “normal aneurysm wall” was described. The brain stem haemorrhage – Duret bleeding – was presumably caused by a sudden increase in intracranial pressure due to the supratentorial space occupying process and consequential trans-tentorial herniation. This case is a rarity, as the patient not only survived, but lives an active life with some residual symptoms.
MARCH 30, 2021
The subtypes of brain arteriovenous malformations, with direct, single-hole fistulas without co-existing nidus are not described as existing entities inside the brain parenchyma but on the pial surface. True parenchymal arteriovenous malformations present with nidal structure, even if they are small, whereas surface lesions may present a direct fistulous configuration. In this case of midbrain haemorrhage a direct arteriovenous fistula was detected at the level of the red nucleus between a paramedian midbrain perforator artery and a paramedian parenchymal vein, with pseudo-aneurysm formation at the fistulous connection, without signs of adjacent nidus structure. The hypothesis whether a pre-existing arteriovenous fistula ruptured or a spontaneous haemorrhage has caused the fistulous connection is discussed.
JULY 30, 2020
Intracranial localization of Ewing’s sarcoma is considerably very rare. Herein, we present clinical and neuroimaging findings regarding a 4-year-old boy with intracranial Ewing’s sarcoma. He was born prematurely, suffered intraventricular haemorrhage, posthaemorrhagic hydrocephalus developed, and a ventriculoperitoneal shunt was inserted in the newborn period. The patient endured regular follow ups, no signs of shunt malfunction nor increased intracranial pressure were observed. The last neuroimaging examination was performed at 8 months of age. Upon reaching the age of 4 years, repeated vomiting and focal seizures began, and symptoms of increased intracranial pressure were detected. A brain MRI depicted a left frontoparietal space-occupying lesion infiltrating the superior sagittal sinus. The patient underwent a craniotomy resulting in the total excision of the tumour. The histological examination of the tissue revealed a small round blue cell tumour. The diagnosis was confirmed by the detection of EWSR1 gene translocation with FISH (fluorescent in situ hybridization). No additional metastases were detected during the staging examinations. The patient was treated in accordance to the EuroEwing 99 protocol. Today, ten years onward, the patient is tumour and seizure free and has a reasonably high quality of life.
Hypertension and nephrology
OCTOBER 23, 2019
[Hypertension is the leading modifiable risk factor for stroke. Its prevalence amongst stroke patient is about 60-70% and the benefit of blood pressure (BP) lowering therapy on stroke risk reduction is well established. However the optimal BP targets for preventing stroke and reducing stroke consequences have been controversial. The new European (ESC/ESH) and Hungarian (HSH) hypertension guideline published in 2018 highlighted the primary and secondary prevention of stroke and the BP management in the acute stroke care as well. According results from ACCORD, SPRINT, HOPE-3, and other metaanalysis the systolic blood pressure (SBP) lowering < 120 mmHg has not favourable effect, thus in hypertensive patients < 65 years the SBP should be lowered to a BP range of 120-129 mmHg. In older patients ≥ 65 years the SBP should be targeted to a BP range of 130-139 mmHg (IA). In patients with acute intracerebral haemorrhage careful acute BP lowering with iv. therapy, to <180 mmHg should be considered only in case of SBP ≥ 220 mmHg (IIaB). In patients with acute ischaemic stroke who are eligible for iv. thrombolysis, BP should be carefully lowered and maintained to < 180/105 mmHg for at least the first 24 h after thrombolysis (IIaB). If the patient is not eli gible for lysis and BP ≤ 220/110 mmHg, routine BP lowering drug therapy is not recommended inside 48-72 h (IA). In patients with markedly elevated BP > 220/110 mmHg who do not receive fibrinolysis, drug therapy may be considered, based on clinical judgement, to reduce BP by 15% during the first 24 h after the stroke onset (IIbC). After 72 h of acute stroke in case of hypertensive patients < 65 years the SBP should be lowered to a BP range of 120-129 mmHg (IIaB). In older patients ≥ 65 years the SBP should be targeted to a BP range of 130-139 mmHg (IA). If BP < 140/90 mmHg after stroke, the BP lowering should be considered (IIbA). It is recommended to initiate an antihypertensive treatment with combination, preferably single pill combination of renin-angiotensin system blockers plus a calcium channel blocker and/or a thiazide like diuretics (IA). Lowering SBP < 120 mmHg is not recommended due to advers events regardless of age and type of stroke either in primary or secondary stroke prevention.]
JULY 30, 2018
Purpose - To develop an evidence-based, standardized structured reporting (SR) method for brain MRI examinations in neonatal hypoxic-ischemic encephalopathy (HIE) suitable both for clinical and research use. Materials and methods - SR template development was based on comprehensive review of the pertinent literature with the basic sections and subdivisions of the template defined according to MRI sequences (both conventional and diffusion-weighted, MR-spectroscopy (MRS), and T2*-weighted imaging), and the items targeted on age-related imaging patterns of HIE. In order to evaluate the usability of the proposed SR template we compared data obtained from the brain MR image analysis of 87 term and 19 preterm neonates with the literature. The enrolled 106 infants were born between 2013 and 2015, went through therapeutic hypothermia according to the TOBY criteria due to moderate to severe asphyxia and had at least one brain MRI examination within the first two weeks of life. Ethical approval was obtained for this retrospective study. Descriptive statistical analysis was also performed on data exported from the structured reporting system as feasibility test. Results - The mean gestational age of the study population was 38.3±2.2 weeks; brain MRI was performed on 5.8±2.9 day of life, hence in 78% of our patients after the conclusion of therapeutic hypothermia. Our main imaging findings were concordant to the pertinent literature. Moreover, we identified a characteristic temporal evolution of diffusion changes. Interestingly 18% (n=19/106) of the clinically asphyxiated infants had isolated axial-extraaxial haemorrhage without any imaging sign of HIE. Conclusion - In this article our approach of reporting HIE cases with our novel SR template is described. The SR template was found suitable for reporting HIE cases, moreover it uncovered time and location dependent evolution of diffusion abnormalities (and pseudonormalization, as well), suggesting its usefulness in clinical research applications. The high number of isolated intracranial haemorrhages, and the changing diffusion pattern emphasizes the importance of early imaging in HIE.
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