1.Intracranial Vasospasm without Intracranial Hemorrhage due to Acute Spontaneous Spinal Subdural Hematoma.
Jung Hwan OH ; Seung Joo JWA ; Tae Ki YANG ; Chang Sub LEE ; Kyungmi OH ; Ji Hoon KANG
Experimental Neurobiology 2015;24(4):366-370
Spontaneous spinal subdural hematoma (SDH) is very rare. Furthermore, intracranial vasospasm (ICVS) associated with spinal hemorrhage has been very rarely reported. We present an ICVS case without intracranial hemorrhage following SDH. A 41-year-old woman was admitted to our hospital with a complaint of severe headache. Multiple intracranial vasospasms were noted on a brain CT angiogram and transfemoral cerebral angiography. However, intracranial hemorrhage was not revealed by brain MRI or CT. On day 3 after admission, weakness of both legs and urinary incontinence developed. Spine MRI showed C7~T6 spinal cord compression due to hyperacute stage of SDH. After hematoma evacuation, her symptoms gradually improved. We suggest that spinal cord evaluation should be considered in patients with headache who have ICVS, although intracranial hemorrhage would not be visible in brain images.
Adult
;
Brain
;
Cerebral Angiography
;
Female
;
Headache
;
Hematoma
;
Hematoma, Subdural, Spinal*
;
Hemorrhage
;
Humans
;
Intracranial Hemorrhages*
;
Leg
;
Magnetic Resonance Imaging
;
Spinal Cord
;
Spinal Cord Compression
;
Spine
;
Subarachnoid Hemorrhage
;
Urinary Incontinence
;
Vasospasm, Intracranial*
2.Effect of Home-Based Transcranial Direct Current Stimulation on Cognitive Function in Patients with Mild Cognitive Impairment: A Two-Week Intervention
Jaesub PARK ; Kyungmi CHUNG ; Yoonkyung OH ; Kwang Joon KIM ; Chang Oh KIM ; Jin Young PARK
Yonsei Medical Journal 2024;65(6):341-347
Purpose:
Repeated transcranial direct current stimulation (tDCS) is expected to have the potential to improve cognitive function in patients with mild cognitive impairment (MCI). We aimed to evaluate the efficacy and safety of at-home tDCS for elderly patients with MCI.
Materials and Methods:
Patients aged 60–80 years, who maintained normal daily living but reported objective memory impairments, were enrolled. Active or sham stimulations were applied to the dorsal frontal cortex (left: anode; right: cathode) at home for 2 weeks. Changes in cognitive function were assessed using visual recognition tasks and the Mini-Mental State Exam (MMSE), and safety and efficacy were assessed using self-reports and a remote monitoring application.
Results:
Of the 19 participants enrolled, 12 participants were included in the efficacy analysis. Response times and MMSE scores significantly improved after active stimulation compared to the sham stimulation; however, there were no significant differences in the proportion of correct responses. The mean compliance of the efficacy group was 97.5%±4.1%. Three participants experienced burns, but no permanent sequelae remained.
Conclusion
This preliminary result suggests that home-based tDCS may be a promising treatment option for MCI patients; however, it requires more attention and technological development to address safety concerns.
3.Treatment with Repeated Lumbar Epidural Blood Patches for a Patient with Orthostatic Headache after Suboccpital Craniectomy.
Seung Chul CHO ; Sung Kyu HONG ; Kyungmi OH ; Byung Jo KIM ; Kun Woo PARK ; Dae Hie LEE
Journal of the Korean Neurological Association 2005;23(5):690-693
Orthostatic headache after suboccipital craniectomy has been rarely reported. A 32-year-old man underwent emergent suboccipital craniectomy due to acute bilateral cerebellar infarctions with massive brain edema. Although his neurological deterioration halted after the craniectomy, he still suffered from a severe disabling orthostatic headache. We performed two epidural blood patches at the levels of the lumbar and thoracic spine. He improved considerably a few days after the repetitive epidural blood patches. Epidural blood patches may be a useful treatment modality for post-craniectomy postural headaches.
Adult
;
Blood Patch, Epidural*
;
Brain Edema
;
Headache*
;
Humans
;
Infarction
;
Spine
4.Jerky Seesaw Nystagmus in Isolated Internuclear Ophthalmoplegia.
Kyungmi OH ; Jae Hong CHANG ; Kun Woo PARK ; Dae Hie LEE ; Kwang Dong CHOI ; Ji Soo KIM
Journal of the Korean Balance Society 2005;4(1):49-52
The authors report jerky seesaw nystagmus, extorsional downbeating in the right eye and intorsional upbeating in the left eye, in a patient with right internuclear ophthalmoplegia (INO). This pattern of nystagmus may occur by disrupting pathways from contralateral posterior and anterior semicircular canals by a lesion in the medial longitudinal fasciculus. Depending on damage to the pathways from contralateral vertical canals, various patterns of dissociated torsional-vertical nystagmus may accompany INO.
Humans
;
Ocular Motility Disorders*
;
Semicircular Canals
5.Vertebral Artery Compression during Roll Tilt: Is the Edge of the Foramen Magnum a Culprit?.
Jeong Yoon CHOI ; Woo Keun SEO ; Kyungmi OH ; Sang Il SEO ; Namhyung RYOU ; Sung Won CHAE
Journal of Clinical Neurology 2015;11(3):292-294
No abstract available.
Foramen Magnum*
;
Vertebral Artery*
6.Spontaneous Conversion of Atrial Fibrillation to Normal Sinus Rhythm Following Recurrent Cerebral Infarctions.
Kyungmi OH ; Jeong Yoon CHOI ; Byung Jo KIM
Journal of Korean Neurosurgical Society 2013;53(6):368-370
Post-stroke atrial fibrillation has been frequently reported especially in the patients with right insular infarct as an evidence of cerebrogenic mechanism affecting on cardiac rhythm. However, conversion to normal sinus rhythm after stroke in patients who had atrial fibrillation has not been reported. A 88-year-old men who had untreated atrial fibrillation was admitted to hospital due to left middle cerebral artery territory infarction. During admission, second ischemic attack occurred in right middle cerebral artery territory. At that time, his atrial fibrillation converted spontaneously to normal sinus rhythm. Restored sinus rhythm sustained until he died due to sepsis. This case is evidence supporting a theory that brain is associated with control of cardiac rhythm. If no risk factor is revealed by intensive investigation in patients with acute cerebral infarctions that cardioembolism is strongly suspected as a cause, physicians should concern transformation of atrial fibrillation to normal sinus rhythm after stroke.
Atrial Fibrillation
;
Autonomic Nervous System
;
Brain
;
Cerebral Infarction
;
Humans
;
Infarction
;
Male
;
Middle Cerebral Artery
;
Risk Factors
;
Sepsis
;
Stroke
7.Bitemporal Hemianopia Associated with Anti-Tuberculosis Medication.
Kyungmi OH ; Jae Hong JANG ; Byung Jo KIM ; Kun Woo PARK ; Dae Hie LEE
Journal of the Korean Neurological Association 2007;25(2):281-282
No abstract available.
Hemianopsia*
;
Isoniazid
;
Tuberculosis
8.Re-irradiation with Moderate Hypo-fractionation Using Intensity Modulated Photon or Proton Radiation Therapy in Locally Recurrent Squamous Cell Carcinoma of Nasopharynx
Heerim NAM ; Yong Chan AHN ; Kyungmi YANG ; Dongryul OH ; Jae Myoung NOH
Cancer Research and Treatment 2022;54(1):96-108
Purpose:
This study aimed to analyze the treatment outcomes of locally recurrent nasopharyngeal cancer (NPC) patients following moderate hypo-fractionation re-irradiation (re-RT).
Materials and Methods:
Sixty locally recurrent NPC patients underwent hypo-fractionation re-RT. Forty-eight point three percentage had rT3-4, and 30.0% did keratinizing squamous cell carcinoma. Intensity-modulated radiation therapy (IMRT), with or without intensity-modulated proton therapy (IMPT), was used in 66.7% of patients.
Results:
With the median follow-up of 22 months (range, 2 to 254 months), 31 patients (51.7%) died, 38 (63.3%) developed further treatment failure, and 30 (50.0%) developed ≥ grade 3 toxicity (including seven grade 5) at time of analysis. The 2- and 5-year rates of overall survival, local failure-free survival, and ≥ grade 3 toxicity-free survival were 57.9% and 45.8%, 64.1% and 52.5%, and 54.8% and 44.9%, respectively. In multivariate analyses, worse factors for overall survival (OS) were iT3-4 (p=0.010) and age at re-RT ≥ 53 years (p=0.003), those for local failure-free survival (LFFS) were rT3-4 (p=0.022) and rN0-1 (p=0.035), and those for toxicity-free survival (TFS) were iT3-4 (p=0.020) and re-IMRT/IMPT (p=0.030), respectively. Cumulative dose or fraction size ≥ 3 Gy at re-RT, however, showed no significance for OS, LFFS and TFS.
Conclusion
Current re-RT with modern RT techniques by moderate hypo-fractionation scheme seemed feasible in treating locally recurrent NPC patients.
9.Primary Central Nervous System Lymphoma Mimicking Lacunar Infarction
Jaemin SHIN ; Taesung JEON ; Kyungmi OH ; Jung Hoon HAN ; Chi Kyung KIM ; Keon-Joo LEE
Journal of the Korean Neurological Association 2024;42(1):23-26
Ischemic stroke is a medical emergency that requires precise diagnosis and prompt treatment. Nonetheless, it is essential to evaluate alternative conditions, such as seizure, peripheral neuropathy and malignancy, with special attention to lymphoma due to its variable clinical manifestations, imaging features, and prognosis. In this report, we present a case of a patient who initially exhibited symptoms and radiological findings considered as lacunar stroke but was ultimately diagnosed with diffuse large B cell lymphoma.
10.Comparison of radiotherapy techniques in patients with thymic epithelial tumor who underwent postoperative radiotherapy
Hyunseok LEE ; Dongryul OH ; Yong Chan AHN ; Hongryull PYO ; Kyungmi YANG ; Jae Myoung NOH
Radiation Oncology Journal 2024;42(1):43-49
Purpose:
This retrospective study aimed to compare clinical outcomes and dosimetric parameters between radiation therapy (RT) techniques in patients with thymic epithelial tumor (TET).
Materials and Methods:
From January 2016 to December 2020, 101 patients with TET received adjuvant RT (median, 52.8 Gy; range, 48.4 to 66.0). Three different RT techniques were compared: three-dimensional conformal RT (3D-CRT; n = 59, 58.4%), intensity-modulated RT (IMRT; n = 23, 22.8%), and proton beam therapy (PBT; n = 19, 18.8%).
Results:
The median age of the patients and the follow-up period were 55 years (range, 28 to 79) and 43.4 months (range, 7.7 to 77.2). Patients in the PBT group were of the youngest age (mean age, 45.4 years), while those in IMRT group had the largest clinical target volume (mean volume, 149.6 mL). Patients in the PBT group had a lower mean lung dose (4.4 Gy vs. 7.6 Gy vs. 10.9 Gy, respectively; p < 0.001), lower mean heart dose (5.4 Gy vs. 10.0 Gy vs. 13.1 Gy, respectively; p = 0.003), and lower mean esophageal dose than patients in the 3D-CRT and IMRT groups (6.3 Gy vs. 9.8 Gy vs. 13.5 Gy, respectively; p = 0.011). Twenty patients (19.8%) showed disease recurrence, and seven patients (6.9%) died. The differences in the survival rates between RT groups were not statistically significant.
Conclusion
In patients with TET who underwent adjuvant RT, PBT resulted in a lower dose of exposure to adjacent organs at risk. Survival outcomes for patients in PBT group were not significantly different from those in other groups.