1.A Case of Single Surgical Removal of Two Distinct Meningiomas with Different World Health Organization Grades and Subtypes in an Elderly Patient
Taehyun KANG ; Byeong Ho OH ; Jong Beom LEE ; Min Jai CHO ; Hyoung Soo BYOUN ; Hong Rye KIM ; Mou Seop LEE ; Kyung Soo MIN
The Nerve 2024;10(2):157-160
Meningioma is one of the most common types of benign primary brain tumors in older adults, and multiple meningiomas are reported in fewer than 1% to 10% of cases. However, there is no definitive treatment guideline for patients with multiple meningiomas. An 80-year-old man presented with abruptly impaired cognition and was found to have two distinct meningiomas located in the temporal and frontal lobes. A single frontotemporal craniotomy was performed to remove both tumors. Pathological analysis revealed different subtypes and World Health Organization grades for each mass. The patient showed symptomatic improvement, experienced no postoperative complications, and exhibited no signs of recurrence during a 1-year follow-up period with evaluations at 3-month intervals. Despite the absence of a standard treatment for multiple meningiomas, surgical resection in a single procedure is feasible in selected patients.
2.Thirty-Day Postoperative Complications after Spinal Fusion in Patients with Spinal Metastasis
Taehyun KANG ; Byeong Ho OH ; Min Jai CHO ; Hyoung Soo BYOUN ; Hong Rye KIM ; Mou Seop LEE ; Kyung Soo MIN ; Jong Beom LEE
The Nerve 2024;10(2):107-112
Objective:
Decompression with instrumented fusion is a common approach for treating spinal metastatic disease. However, in many cases, poor bone quality and compromised general condition increase the likelihood of mechanical failure and other complications. This study investigated complications, including those related to surgery, following decompression and fusion in patients with spinal metastatic disease.
Methods:
A study at a single tertiary medical center focusing on surgical details and perioperative complications was performed on 35 patients who underwent spinal surgery due to metastatic spinal disease based on a review of a prospective database. Data on patients' underlying conditions and the status of the primary tumors were collected, and various complications that occurred within the first month after surgery were analyzed.
Results:
During the study, 35 patients (mean age, 66.5 years; 26 men) were enrolled. The most frequent primary cancers were lung (34%) and prostate cancer (17%), followed by liver and breast cancer and others. The overall complication rate was 37% (14% surgery-related complications, 23% general complications). In all cases, surgery was performed due to lower extremity weakness, and 59% of patients showed improvements in motor function after surgery. Furthermore, 23% of patients regained the ability to walk.
Conclusion
Surgery for spinal metastasis is frequently performed as an emergency due to the severity of symptoms such as lower extremity weakness. Despite a high risk of acute complications, the procedure has significant benefits, including improvement in weakness and recovery of walking ability. Therefore, proactive treatment using appropriate surgical techniques is recommended.
3.Outcomes in Refractory Diffuse Large B-Cell Lymphoma: Results from Two Prospective Korean Cohorts
Jun Ho YI ; Seong Hyun JEONG ; Seok Jin KIM ; Dok Hyun YOON ; Hye Jin KANG ; Youngil KOH ; Jin Seok KIM ; Won-Sik LEE ; Deok-Hwan YANG ; Young Rok DO ; Min Kyoung KIM ; Kwai Han YOO ; Yoon Seok CHOI ; Whan Jung YUN ; Yong PARK ; Jae-Cheol JO ; Hyeon-Seok EOM ; Jae-Yong KWAK ; Ho-Jin SHIN ; Byeong Bae PARK ; Seong Yoon YI ; Ji-Hyun KWON ; Sung Yong OH ; Hyo Jung KIM ; Byeong Seok SOHN ; Jong Ho WON ; Dae-Sik HONG ; Ho-Sup LEE ; Gyeong-Won LEE ; Cheolwon SUH ; Won Seog KIM
Cancer Research and Treatment 2023;55(1):325-333
Purpose:
Diffuse large B-cell lymphoma (DLBCL) is the most common hematologic malignancy worldwide. Although substantial improvement has been achieved by the frontline rituximab-based chemoimmunotherapy, up to 40%-50% of patients will eventually have relapsed or refractory disease, whose prognosis is extremely dismal.
Materials and Methods:
We have carried out two prospective cohort studies that include over 1,500 DLBCL patients treated with rituximab plus CHOP (#NCT01202448 and #NCT02474550). In the current report, we describe the outcomes of refractory DLBCL patients. Patients were defined to have refractory DLBCL if they met one of the followings, not achieving at least partial response after 4 or more cycles of R-CHOP; not achieving at least partial response after 2 or more cycles of salvage therapy; progressive disease within 12 months after autologous stem cell transplantation.
Results:
Among 1,581 patients, a total of 260 patients met the criteria for the refractory disease after a median time to progression of 9.1 months. The objective response rate of salvage treatment was 26.4%, and the complete response rate was 9.6%. The median overall survival (OS) was 7.5 months (95% confidence interval, 6.4 to 8.6), and the 2-year survival rate was 22.1%±2.8%. The median OS for each refractory category was not significantly different (p=0.529).
Conclusion
In line with the previous studies, the outcomes of refractory DLBCL patients were extremely poor, which necessitates novel approaches for this population.
4.Surgical Outcomes of Hammer-Chisel and Drill Techniques to Create Superior Bony Ostium During Endoscopic Dacryocystorhinostomy
Hye Jin LEE ; Jun Ho OH ; Yong Koo KANG ; Dai Woo KIM ; Byeong Jae SON
Journal of the Korean Ophthalmological Society 2023;64(12):1127-1135
Purpose:
We introduce a “cold steel” hammer-chisel technique for endoscopic dacryocystorhinostomy, then compare postoperative outcomes between this technique and a drill technique.
Methods:
This study included 191 patients (297 eyes) with nasolacrimal duct stenoses or obstructions who underwent endoscopic dacryocystorhinostomy using the hammer-chisel or drill technique. Surgical outcomes were compared via follow-up screening for epiphora and anatomical complications such as granuloma and fibrous membrane formation, canalicular obstruction, and synechiae.
Results:
Postoperative anatomical complications occurred in 29 eyes (18.6%) in the hammer-chisel group and 51 eyes (36.2%) in the drill group (p = 0.001). The anatomical failure rate was higher in the drill group [28 eyes (19.9%)] than in the hammer-chisel group [18 eyes (11.5%); p = 0.038]. Functional failure was observed in 13 eyes (8.3%) in the hammer-chisel group and 13 eyes (9.2%) in the drill group (p = 0.787). The mean operation time was significantly longer in the drill group (35.5 ± 10.4 minutes vs. 25.4 ± 9.1 minutes) (p < 0.001).
Conclusions
During endoscopic dacryocystorhinostomy, osteotomy with a hammer-chisel is more successful and leads to fewer complications than osteotomy with a drill.
5.Penetrating Head Injury Resulting From Wild Boar Attack in Republic of Korea: A Case Report
Kyunghyun NA ; Byeong Ho OH ; JongBeom LEE ; Min Jai CHO ; MouSeop LEE ; Hong Rye KIM
Korean Journal of Neurotrauma 2023;19(4):496-501
Few cases of injuries caused by wild boars have been reported in the literature. Here, we present the case of a 64-year-old male patient who was attacked by a wild boar. The patient had a laceration to the right forehead and a penetrating wound in the area before the right auricle. Computed tomography scan revealed traumatic subarachnoid hemorrhage, subdural hemorrhage, right temporal lobe contusion hemorrhage, pneumocephalus, right zygomatic arch and temporal bone fracture, and right coronal process fracture of the mandible.Prophylactically, 2,000 mg of ceftriaxone and 400 mg of moxifloxacin were intravenously administered every 24 hours. An emergency craniectomy was performed because the skull fracture was an open fracture and control of the increased intracranial pressure was necessary. Inactivated Rabies Virus Vaccine was also administered postoperatively. We concluded that, unlike typical wounds from other traumatic causes, the risk of wound infection is higher. In order to reduce morbidity and mortality due to wild boar attacks, rapid stabilization of the patient’s vital signs, prevention of infection with appropriate antibiotics, and surgical intervention at the appropriate time and method are necessary.
6.Pegfilgrastim Prophylaxis Is Effective in the Prevention of Febrile Neutropenia and Reduces Mortality in Patients Aged ≥ 75 Years with Diffuse Large B-Cell Lymphoma Treated with R-CHOP: A Prospective Cohort Study
Seong Hyun JEONG ; Seok Jin KIM ; Dok Hyun YOON ; Yong PARK ; Hye Jin KANG ; Youngil KOH ; Gyeong-Won LEE ; Won-Sik LEE ; Deok-Hwan YANG ; Young Rok DO ; Min Kyoung KIM ; Kwai Han YOO ; Yoon Seok CHOI ; Hwan Jung YUN ; Jun Ho YI ; Jae-Cheol JO ; Hyeon-Seok EOM ; Jae-Yong KWAK ; Ho-Jin SHIN ; Byeong Bae PARK ; Shin Young HYUN ; Seong Yoon YI ; Ji-Hyun KWON ; Sung Yong OH ; Hyo Jung KIM ; Byeong Seok SOHN ; Jong Ho WON ; Se-Hyung KIM ; Ho-Sup LEE ; Cheolwon SUH ; Won Seog KIM
Cancer Research and Treatment 2022;54(4):1268-1277
Purpose:
Febrile neutropenia (FN) can cause suboptimal treatment and treatment-related mortality (TRM) in diffuse large B-cell lymphoma (DLBCL) patients treated with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP).
Materials and methods:
We conducted a prospective cohort study to evaluate the effectiveness of pegfilgrastim prophylaxis in DLBCL patients receiving R-CHOP, and we compared them with the PROCESS cohort (n=485).
Results:
Since January 2015, 986 patients with DLBCL were enrolled. Pegfilgrastim was administered at least once in 930 patients (94.3%), covering 90.3% of all cycles. FN developed in 137 patients (13.9%) in this cohort (23.7% in the PROCESS cohort, p<0.001), and 4.2% of all cycles (10.2% in the PROCESS cohort, p<0.001). Dose delay was less common (≥3 days: 18.1% vs. 23.7%, p=0.015; ≥5 days: 12.0% vs. 18.3%, p=0.023) in this cohort than in the PROCESS cohort. The incidence of TRM (3.2% vs. 5.6%, p=0.047) and infection-related death (1.8% vs. 4.5%, p=0.004) was lower in this cohort than in the PROCESS cohort. The 4-year overall survival (OS) and progression-free survival (PFS) rates of the two cohorts were not different (OS: 73.0% vs. 71.9%, p=0.545; PFS: 69.5% vs. 68.8%, p=0.616). However, in patients aged ≥75 years, the 4-year OS and PFS rates were higher in this cohort than in the PROCESS cohort (OS: 49.6% vs. 33.7%, p=0.032; PFS: 44.2% vs. 30.3% p=0.047).
Conclusion
Pegfilgrastim prophylaxis is effective in the prevention of FN and infection-related death in DLBCL patients receiving R-CHOP, and it also improves OS in patients aged ≥75 years.
8.A Case of Pencil-Core Granuloma after Hyaluronic Acid Filler Injection
Yong Woo OH ; Dong Hee KIM ; Byeong Hak SEO ; Ho Seok SUH ; Yu Sung CHOI
Annals of Dermatology 2021;33(6):589-590
no abstract available.
9.Anti-Inflammatory Effect for Atherosclerosis Progression by Sodium-Glucose Cotransporter 2 (SGLT-2) Inhibitor in a Normoglycemic Rabbit Model
Seul Gee LEE ; Seung Jun LEE ; Jung Jae LEE ; Jung Sun KIM ; Oh Hyun LEE ; Choong Ki KIM ; Darae KIM ; Yong Ho LEE ; Jaewon OH ; Seil PARK ; Ok Hee JEON ; Sung Jin HONG ; Chul Min AHN ; Byeong Keuk KIM ; Young Guk KO ; Donghoon CHOI ; Myeong Ki HONG ; Yansoo JANG
Korean Circulation Journal 2020;50(5):443-457
BACKGROUND AND OBJECTIVES: We sought to investigate an anti-atherosclerotic and anti-inflammatory effect of sodium-glucose cotransporter-2 (SGLT-2) inhibitors in normoglycemic atherosclerotic rabbit model.METHODS: Male New Zealand white rabbits (n=26) were fed with a 1% high-cholesterol diet for 7 weeks followed by normal diet for 2 weeks. After balloon catheter injury, the rabbits were administered with the Dapagliflozin (1mg/kg/day) or control-medium for 8 weeks (n=13 for each group). All lesions were assessed with angiography, optical coherence tomography (OCT), and histological assessment.RESULTS: Atheroma burden (38.51±3.16% vs. 21.91±1.22%, p<0.01) and lipid accumulation (18.90±3.63% vs. 10.20±2.03%, p=0.047) was significantly decreased by SGLT-2 inhibitor treatment. The SGLT-2 inhibitor group showed lower macrophage infiltration (20.23±1.89% vs. 12.72±1.95%, p=0.01) as well as tumor necrosis factor (TNF)-α expression (31.17±4.40% vs. 19.47±2.10%, p=0.025). Relative area of inducible nitric oxide synthase+ macrophages was tended to be lower in the SGLT-2 inhibitor-treated group (1.00±0.16% vs. 0.71±0.10%, p=0.13), while relative proportion of Arg1⁺ macrophage was markedly increased (1.00±0.27% vs. 2.43±0.64%, p=0.04). As a result, progression of atherosclerosis was markedly attenuated in SGLT-2 inhibitor treated group (OCT area stenosis, 32.13±1.20% vs. 22.77±0.88%, p<0.01). Mechanistically, SGLT-2 treatment mitigated the inflammatory responses in macrophage. Especially, Toll-like receptor 4/nuclear factor-kappa B signaling pathway, and their downstream effectors such as interleukin-6 and TNF-α were markedly suppressed by SGLT-2 inhibitor treatment.CONCLUSIONS: These results together suggest that SGLT-2 inhibitor exerts an anti-atherosclerotic effect through favorable modulation of inflammatory response as well as macrophage characteristics in non-diabetic situation.
Angiography
;
Atherosclerosis
;
Catheters
;
Constriction, Pathologic
;
Diet
;
Humans
;
Interleukin-6
;
Macrophages
;
Male
;
Nitric Oxide
;
Plaque, Atherosclerotic
;
Rabbits
;
Toll-Like Receptors
;
Tomography, Optical Coherence
;
Tumor Necrosis Factor-alpha
10.Cement Augmented Anterior Reconstruction and Decompression without Posterior Instrumentation:A Less Invasive Surgical Option for Osteoporotic Thoracolumbar Fracture with Cord Compression
Sang-Min LEE ; Hyeong Seok OH ; Sang-Ho LEE ; Hyung-Chang LEE ; Byeong-Wook HWANG
Korean Journal of Neurotrauma 2020;16(2):190-199
Objective:
We investigated the clinical and radiological outcomes of a cement augmented anterior reconstruction and decompression without pedicle screw fixation in patients with osteoporotic thoracolumbar vertebral fracture with myelopathy.
Methods:
There were 2 male and 6 female patients with thoracolumbar fracture and myelopathy included in the study. The mean follow-up period was more than 1 years.The anterolateral decompression and cement augmented anterior reconstruction with poly(methyl methacrylate) (PMMA) was performed. Demographic data, clinical outcomes, perioperative parameters and radiologic parameter were retrospectively evaluated.
Results:
The symptoms due to myelopathy were improved in all patients. The preoperative median visual analog scale score for lower back and leg were 8.5 that improved 4.25 and 3 at last follow up. The preoperative function state showed a median Oswestry Disability Index score 61.5 that improved 33. After surgery, preoperative encroachment of the spinal canal (5.12 mm, 37%) was disappeared. The median height of fractured vertebral body significantly increased from 7.83 to 12.63 mm. At the last follow-up point, the median height was 9.91 mm. The median kyphotic deformity was improved from 22.12° to 14.31°. At the final followup, the improvement was preserved (median value: 15.03). The acute complication according to PMMA such as leakage and embolization was none, but adjacent compression fracture as late complication according to cement augmentation was. One patient developed surgical site infection.
Conclusion
On the basis of the preliminary results, we considered that anterolateral decompression and PMMA augmentation might be an optimal method for treating osteoporotic fracture with myelopathy in elderly patients or those with multiple medical comorbidities.

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