1.Supraorbital Approaches for Anterior Skull Base and Parasellar Lesions: Insights From a Single-Center Experience
Han Gyul LEE ; Sung Jin CHO ; Hye Ran PARK ; Dongwook SEO
Brain Tumor Research and Treatment 2024;12(3):172-180
Background:
Modern neurosurgery has undergone significant evolution to include minimally inva-sive procedures, with the supraorbital approach (SOA) being a prime example. In this study, we aim to explore the surgical techniques and outcomes of this approach in the surgical treatment of frontal lobe, anterior skull base, and parasellar lesions.
Methods:
This study included 33 patients aged 36–83 years who underwent surgery using theSOA for lesions in the inferior frontal lobe, anterior skull base, and parasellar area between 2015 and 2024. There were 25 cases of meningioma, 2 cases of brain abscess, 2 cases of glioma, and one case each of craniopharyngioma, hemangioma, metastasis, and Rathke’s cleft cyst. The medical data and follow-up results were retrospectively analyzed.
Results:
The mean size of lesion was 3.38±3.05 cm. The mean follow-up period was 48.8months. Gross total resection was achieved in 25 patients (75.8%). There were no perioperative deaths, cases of cerebrospinal fluid rhinorrhea, or infections. Two cases of morbidity were reported as complications: one case of delayed intracerebral hemorrhage and one case of infarction due to vascular injury. All patients exhibited satisfactory cosmetic results.
Conclusion
In comparison to the conventional pterional approach, the SOA represents a safe and effective keyhole method for the removal of both extra-axial and intra-axial skull base tumors. This is particularly beneficial for lesions in the orbitofrontal region and parasellar area, as it allows for minimal disruption of normal brain parenchyma. Moreover, the SOA promotes a swift recovery and short hospital stay. Additionally, the SOA yields superior cosmetic results, including the prevention of temporalis muscle atrophy.
2.Supraorbital Approaches for Anterior Skull Base and Parasellar Lesions: Insights From a Single-Center Experience
Han Gyul LEE ; Sung Jin CHO ; Hye Ran PARK ; Dongwook SEO
Brain Tumor Research and Treatment 2024;12(3):172-180
Background:
Modern neurosurgery has undergone significant evolution to include minimally inva-sive procedures, with the supraorbital approach (SOA) being a prime example. In this study, we aim to explore the surgical techniques and outcomes of this approach in the surgical treatment of frontal lobe, anterior skull base, and parasellar lesions.
Methods:
This study included 33 patients aged 36–83 years who underwent surgery using theSOA for lesions in the inferior frontal lobe, anterior skull base, and parasellar area between 2015 and 2024. There were 25 cases of meningioma, 2 cases of brain abscess, 2 cases of glioma, and one case each of craniopharyngioma, hemangioma, metastasis, and Rathke’s cleft cyst. The medical data and follow-up results were retrospectively analyzed.
Results:
The mean size of lesion was 3.38±3.05 cm. The mean follow-up period was 48.8months. Gross total resection was achieved in 25 patients (75.8%). There were no perioperative deaths, cases of cerebrospinal fluid rhinorrhea, or infections. Two cases of morbidity were reported as complications: one case of delayed intracerebral hemorrhage and one case of infarction due to vascular injury. All patients exhibited satisfactory cosmetic results.
Conclusion
In comparison to the conventional pterional approach, the SOA represents a safe and effective keyhole method for the removal of both extra-axial and intra-axial skull base tumors. This is particularly beneficial for lesions in the orbitofrontal region and parasellar area, as it allows for minimal disruption of normal brain parenchyma. Moreover, the SOA promotes a swift recovery and short hospital stay. Additionally, the SOA yields superior cosmetic results, including the prevention of temporalis muscle atrophy.
3.Supraorbital Approaches for Anterior Skull Base and Parasellar Lesions: Insights From a Single-Center Experience
Han Gyul LEE ; Sung Jin CHO ; Hye Ran PARK ; Dongwook SEO
Brain Tumor Research and Treatment 2024;12(3):172-180
Background:
Modern neurosurgery has undergone significant evolution to include minimally inva-sive procedures, with the supraorbital approach (SOA) being a prime example. In this study, we aim to explore the surgical techniques and outcomes of this approach in the surgical treatment of frontal lobe, anterior skull base, and parasellar lesions.
Methods:
This study included 33 patients aged 36–83 years who underwent surgery using theSOA for lesions in the inferior frontal lobe, anterior skull base, and parasellar area between 2015 and 2024. There were 25 cases of meningioma, 2 cases of brain abscess, 2 cases of glioma, and one case each of craniopharyngioma, hemangioma, metastasis, and Rathke’s cleft cyst. The medical data and follow-up results were retrospectively analyzed.
Results:
The mean size of lesion was 3.38±3.05 cm. The mean follow-up period was 48.8months. Gross total resection was achieved in 25 patients (75.8%). There were no perioperative deaths, cases of cerebrospinal fluid rhinorrhea, or infections. Two cases of morbidity were reported as complications: one case of delayed intracerebral hemorrhage and one case of infarction due to vascular injury. All patients exhibited satisfactory cosmetic results.
Conclusion
In comparison to the conventional pterional approach, the SOA represents a safe and effective keyhole method for the removal of both extra-axial and intra-axial skull base tumors. This is particularly beneficial for lesions in the orbitofrontal region and parasellar area, as it allows for minimal disruption of normal brain parenchyma. Moreover, the SOA promotes a swift recovery and short hospital stay. Additionally, the SOA yields superior cosmetic results, including the prevention of temporalis muscle atrophy.
4.Supraorbital Approaches for Anterior Skull Base and Parasellar Lesions: Insights From a Single-Center Experience
Han Gyul LEE ; Sung Jin CHO ; Hye Ran PARK ; Dongwook SEO
Brain Tumor Research and Treatment 2024;12(3):172-180
Background:
Modern neurosurgery has undergone significant evolution to include minimally inva-sive procedures, with the supraorbital approach (SOA) being a prime example. In this study, we aim to explore the surgical techniques and outcomes of this approach in the surgical treatment of frontal lobe, anterior skull base, and parasellar lesions.
Methods:
This study included 33 patients aged 36–83 years who underwent surgery using theSOA for lesions in the inferior frontal lobe, anterior skull base, and parasellar area between 2015 and 2024. There were 25 cases of meningioma, 2 cases of brain abscess, 2 cases of glioma, and one case each of craniopharyngioma, hemangioma, metastasis, and Rathke’s cleft cyst. The medical data and follow-up results were retrospectively analyzed.
Results:
The mean size of lesion was 3.38±3.05 cm. The mean follow-up period was 48.8months. Gross total resection was achieved in 25 patients (75.8%). There were no perioperative deaths, cases of cerebrospinal fluid rhinorrhea, or infections. Two cases of morbidity were reported as complications: one case of delayed intracerebral hemorrhage and one case of infarction due to vascular injury. All patients exhibited satisfactory cosmetic results.
Conclusion
In comparison to the conventional pterional approach, the SOA represents a safe and effective keyhole method for the removal of both extra-axial and intra-axial skull base tumors. This is particularly beneficial for lesions in the orbitofrontal region and parasellar area, as it allows for minimal disruption of normal brain parenchyma. Moreover, the SOA promotes a swift recovery and short hospital stay. Additionally, the SOA yields superior cosmetic results, including the prevention of temporalis muscle atrophy.
5.Liquid biopsy using cfDNA to predict radiation therapy response in solid tumors
Won Kyung CHO ; Junnam LEE ; Sung-Min YOUN ; Dongryul OH ; Do Hoon LIM ; Han Gyul YOON ; Eun-Hae CHO ; Jae Myoung NOH
Radiation Oncology Journal 2023;41(1):32-39
Purpose:
This study explored the potential feasibility of cell-free DNA (cfDNA) in monitoring treatment response through the measurement of chromosomal instabilities using I-scores in the context of radiation therapy (RT) for other solid tumors.
Materials and Methods:
This study enrolled 23 patients treated with RT for lung, esophageal, and head and neck cancer. Serial cfDNA monitoring was performed before RT, 1 week after RT, and 1 month after RT. Low-depth whole-genome sequencing was done using Nano kit and NextSeq 500 (Illumina Inc.). To measure the extent of genome-wide copy number instability, I-score was calculated.
Results:
Pretreatment I-score was elevated to more than 5.09 in 17 patients (73.9%). There was a significant positive correlation between the gross tumor volume and the baseline I-score (Spearman rho = 0.419, p = 0.047). The median I-scores at baseline, post-RT 1 week (P1W), and post-RT 1 month (P1M) were 5.27, 5.13, and 4.79, respectively. The I-score at P1M was significantly lower than that at baseline (p = 0.002), while the difference between baseline and P1W was not significant (p = 0.244).
Conclusion
We have shown the feasibility of cfDNA I-score to detect minimal residual disease after RT in patients with lung cancer, esophageal cancer, and head and neck cancer. Additional studies are ongoing to optimize the measurement and analysis of I-scores to predict the radiation response in cancer patients.
6.Restoration of IARPD in partially edentulous patients with bone defects due to osteomyelitis treatment
Se-Hyun PARK ; Han-Gyul SUNG ; Kyung-Ho KO ; Yoon-Hyuk HUH ; Chan-Jin PARK ; Lee-Ra CHO
The Journal of Korean Academy of Prosthodontics 2021;59(3):359-369
Implant prostheses and removable partial dentures are mainly used as treatment methods for partial edentulous patients who have lost a number of teeth. The implant-assisted removable partial denture (IARPD) is strategically selected. The defect in maxillofacial structure due to osteomyelitis, a type of facial bone infection, causes dysfunction such as mastication, swallowing, and pronunciation, as well as social and psychological effects, so a removable restoration is required to restore the supporting tissue. Design of abutment and partial dentures is an essential factor in the success of treatment. In this case, IARPD, which has superior retention and stability compared to traditional removable partial dentures, can have a good prognosis. In a partial edentulous patient with bone defects due to osteomyelitis treatment, the stability of the denture was secured with IARPD restoration. Moreover, maintenance problem that may occur in the future was minimized by providing an appropriate denture design and occlusal scheme through several provisional restorations. This case can be expected to have a favorable prognosis in the long term.
7.Literature review and case report of prosthetic rehabilitation with telescopic denture.
Han Gyul SUNG ; Eun Hye JO ; Kyung Ho KO ; Yoon Hyuk HUH ; Chan Jin PARK ; Lee Ra CHO
The Journal of Korean Academy of Prosthodontics 2018;56(4):308-316
Telescopic denture has advantages such as transfer the occlusal force to the long axis of the abutment, easiness of oral hygiene management, increase of retention and stability, splint effect due to secondary fixation between abutments and have been reported a higher success rates than conventional removable partial denture (RPD). However, there are disadvantages such as complex laboratory procedures, long treatment periods and high costs, and high incidence of complications. This clinical report describes two cases, a 4-point supported telescopic denture using telescopic crown and a 2-point supported telescopic denture using conical crown with functionally satisfactory results. Frequent complications of telescopic denture, which are reported in various literature were reviewed. Clinical and laboratory procedures were performed in consideration of complications that reported.
Bite Force
;
Crowns
;
Denture, Partial, Removable
;
Dentures*
;
Incidence
;
Oral Hygiene
;
Rehabilitation*
;
Splints
8.Restoration of IARPD in partially edentulous patients with bone defects due to osteomyelitis treatment
Se-Hyun PARK ; Han-Gyul SUNG ; Kyung-Ho KO ; Yoon-Hyuk HUH ; Chan-Jin PARK ; Lee-Ra CHO
The Journal of Korean Academy of Prosthodontics 2021;59(3):359-369
Implant prostheses and removable partial dentures are mainly used as treatment methods for partial edentulous patients who have lost a number of teeth. The implant-assisted removable partial denture (IARPD) is strategically selected. The defect in maxillofacial structure due to osteomyelitis, a type of facial bone infection, causes dysfunction such as mastication, swallowing, and pronunciation, as well as social and psychological effects, so a removable restoration is required to restore the supporting tissue. Design of abutment and partial dentures is an essential factor in the success of treatment. In this case, IARPD, which has superior retention and stability compared to traditional removable partial dentures, can have a good prognosis. In a partial edentulous patient with bone defects due to osteomyelitis treatment, the stability of the denture was secured with IARPD restoration. Moreover, maintenance problem that may occur in the future was minimized by providing an appropriate denture design and occlusal scheme through several provisional restorations. This case can be expected to have a favorable prognosis in the long term.