• Medical Lasers
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• v.8 no.2
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• pp.87-89
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• 2019

Post inflammatory hyperpigmentation (PIH) is a reactive hypermelanosis of the skin that occurs as a result of various inflammatory responses such as surgical procedure, trauma, and many inflammatory conditions. There are several reported studies of various modality in managing PIH. However, the treatment of PIH can prove to be challenging. In this report, we treated a patient with PIH using picosecond-domain Nd:YAG lasers. After ten sessions of 1,064-nm picosecond-domain Nd:YAG laser treatment, the patient presented considerable improvement with no remarkable side effects or recurrence over the duration of 6 months. We suggest that a 1,064-nm picosecond-domain Nd:YAG laser can be effectively and safely used for treating pigmented lesions resulting from surgical procedure in the skin of Asian patients.

• Journal of Chest Surgery
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• v.56 no.6
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• pp.456-459
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• 2023

Penetrating chest trauma may result in significant intracardiac injury. A traumatic ventricular septal defect is a rare complication that requires surgical management, particularly if heart failure ensues. We report a case of delayed repair of an outlet-type ventricular septal defect and perforation of the aortic and pulmonary valve leaflets following a stab wound. This report highlights diagnostic and surgical considerations and also presents an opportunity to review the conotruncal anatomy, which may be relatively unfamiliar to many adult cardiac surgeons.

• Journal of Korean Foot and Ankle Society
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• v.28 no.2
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• pp.68-70
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• 2024

Finger infections are a common problem often caused by viruses, bacteria, or fungi. Similarly, toe infections can present with similar clinical symptoms. Prompt identification of the cause of an infection is crucial for preventing disease progression to a state necessitating immediate and appropriate medical or surgical intervention. Herpetic whitlow is characterized by erythema and painful, non-purulent vesicles and typically results from a herpes simplex virus type 1 or 2 finger infections. However, while herpes whitlow of a finger is common, cases involving a toe are rare. Consequently, a lack of experience of herpetic whitlow of the toe could lead to a misdiagnosis as a bacterial infection and potentially result in unnecessary surgical treatment. Herein, we present a case of herpetic whitlow affecting a great toe that was initially misdiagnosed as a bacterial infection and subsequently treated surgically.

• The Journal of Korea Robotics Society
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• v.19 no.1
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• pp.16-22
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• 2024

Robotic grasping in unstructured environments poses a significant challenge, demanding precise estimation of gripping positions for diverse and unknown objects. Generative Grasping Convolution Neural Network (GG-CNN) can estimate the position and direction that can be gripped by a robot gripper for an unknown object based on a three-dimensional depth map. Since GG-CNN uses only a depth map as an input, the precision of the depth map is the most critical factor affecting the result. To address the challenge of depth map precision, we integrate the Segment Anything Model renowned for its robust zero-shot performance across various segmentation tasks. We adjust the components corresponding to the segmented areas in the depth map aligned through external calibration. The proposed method was validated on the Cornell dataset and SurgicalKit dataset. Quantitative analysis compared to existing methods showed a 49.8% improvement with the dataset including surgical instruments. The results highlight the practical importance of our approach, especially in scenarios involving thin and metallic objects.

• Archives of Craniofacial Surgery
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• v.17 no.1
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• pp.14-19
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• 2016

Background: Most nasal bone fractures are corrected using non-invasive methods. Often, patients are dissatisfied with surgical outcomes following such closed approach. In this study, we compare surgical outcomes following blind closed reduction to that of ultrasound-guided reduction. Methods: A single-institutional prospective study was performed for all nasal fracture patients (n=28) presenting between May 2013 and November 2013. Upon research consent, patients were randomly assigned to either the control group (n=14, blind reduction) or the experimental group (n=14, ultrasound-guided reduction). Surgical outcomes were evaluated using preoperative and 3-month postoperative X-ray images by two independent surgeons. Patient satisfaction was evaluated using a questionnaire survey. Results: The experimental group consisted of 4 patients with Plane I fracture and 10 patients with Plane II fracture. The control group consisted of 3 patients with Plane I fracture and 11 patients with Plane II fracture. The mean surgical outcomes score and the mean patient dissatisfaction score were found not to differ between the experimental and the control group in Plane I fracture (p=0.755, 0.578, respectively). In a subgroup analysis consisting of Plane II fractures only, surgeons graded outcomes for ultrasound-guided reduction higher than that for the control group (p=0.007). Likewise, among the Plane II fracture patients, those who underwent ultrasound-guided reduction were less dissatisfied than those who underwent blind reduction (p=0.043). Conclusion: Our study result suggests that ultrasound-guided closed reduction is superior to blind closed reduction in those patients with Plane II nasal fractures.

• Journal of Chest Surgery
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• v.19 no.2
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• pp.232-237
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• 1986

The intraventricular conduction disturbances have been documented after correction of ventricular septal defects by any surgical route but debated its etiology. And so the frequency of conduction disturbances following right ventriculotomy, right atriotomy and pulmonary arteriotomy for closure of ventricular septal defects was compared in various conditions. The present series consists of 218 patients with ventricular septal defects. They had the surgical repair at the Seoul National University Hospital from January 1983 to October 1984. Conduction disturbances were studied with conventional 12 leads electrocardiogram. Of the 218 VSD`s 139 patients were repaired via vertical right ventriculotomy, 45 patients via right atriotomy, 34 patients via pulmonary arteriotomy. 1] Of 218 patients the frequency of RBBB was 26.1% and the frequency of RBBB + LAH was 6.0%. 2] There is no statistical difference between right ventriculotomy group [30.2%] and right atriotomy group [24.4%]. But there is significant difference between right ventriculotomy group and pulmonary arteriotomy group [11.8%] [P<0.05]. 3] In respect to anatomical classification by Kirklin`s method, the frequency of RBBB was higher in type II [32.1%] than in type I [14.9%]. [P<0.05] But in each anatomical type, there is no influence of the various surgical approach on the incidence of postoperative RBBB. 4] The frequency of RBBB was 31.8% in patch closure group and 14.3% in direct closure group. [P<0.05] Although the result suggests that there is no significant difference in various surgical approaches on the incidence of postoperative conduction disturbances, it may be reduced by a new-ventricular approach or a limited incision at right ventricular outflow tract in right ventricular approach.

• Journal of Korean Neurosurgical Society
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• v.30 no.1
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• pp.73-77
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• 2001

Object : To determine whether to use surgical or medical therapy in treatment of infectious intracranial aneurysms, we reviewed two recent cases of infectious intracranial aneurysms and others known previous reports of aforementioned cases. Hence, we attempted to compare the validity and effectiveness of surgical and medical treatment. Method : Recently, we treated two cases of ruptured infectious intracranial aneurysms. In former case, the aneurysm was located distal to the middle cerebral artery in a patient with mild mitral regurgitation of the heart. In latter case, the aneurysm was multiple with varying hemorrhage. The hemorrhage was located bilaterally and a moderate mitral regurgitation and infective endocarditis were accompanied in this patient. Result : Due to the large size of the intracranial hematoma, stable medical condition, and easy resectability, we treated the former patient surgically. And, because of successive hemorrhage by multiple aneurysmal rupture, and the risk of heart failure, we treated the latter patient medically with serial follow-up angiography. Both patients are at present in good health. Conclusion : Because of the variability in associated factors, such as the patient's health, the number of lesions, location, anatomy of the aneurysms and the causative organism, each patient's care must be individualized and tailored to the patient's particular clinical situation.

• Journal of Trauma and Injury
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• v.24 no.1
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• pp.56-59
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• 2011

Abdominal compartment syndrome (ACS) is a life-threatening disorder caused by rapidly increasing intra-abdominal pressure. ACS can result in multiorgan failure and carries a mortality of 60~70%. The treatment of choice in ACS is surgical decompression. There are very few reports of ACS and experience in Korea. We report 12-year-old male patient who developed an abdominal compartment syndrome due to traffic-accident-induced retroperitoneal hematomas, Which was successfully treated by performing a bedside emergency surgical decompression with open linea alba fasciotomy with intact peritoneum. When patients do not respond to medical therapy, a decompressive laparotomy is the last surgical resort. In patients with severe abdominal compartment syndrome, the use of a linea alba fasciotomy is an effective intervention to lower intra-abdominal hypertension (IAH) without the morbidity of a laparotomy. Use of a linea alba fasciotomy as a first-line intervention before committing to full abdominal decompression in patients with abdominal compartment syndrome improves physiological variables without mortality. Consideration for a linea alba fasciotomy as a bridge before full abdominal decompression needs further evaluation in patients with polytrauma abdominal compartment syndrome.

• Korean Journal of Head & Neck Oncology
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• v.16 no.2
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• pp.196-200
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• 2000

Objectives: Submandibular gland tumors is rare. The aim of this study is to get a clinical feature of submandibular gland tumors and to apply a treatment of submandibular gland tumors of future patients. Methods: We analyzed retrospectively the 18 patients with submandibular gland tumors who were treated surgically at Presbyterian Medical Center(PMC), during the period of 8 years from 1992 to 1999. Analysis was performed regarding the incidence, classification, surgical treatment, surgical complication, recurrence and prognosis. Result : 1) Male to female sex ratio was 1:1.25, the most prevalent age group was the 5th decade. 2) Benign tumors were 12 cases(66.7%) and malignant tumors were 6 cases(33.3%). 3) Histopathologically, the most common benign submandibular gland tumor was pleomorphic adenoma, and the most malignant submandibular gland tumor was adenoid cystic carcinoma. 4) In pleomorphic adenoma, excision of submandibular gland was performed in all case(8case). In malignant tumors, excision and supraomohyoid node dissection was performed in 3cases, and modified-radical neck dissection(RND) was performed in 2cases, and than standard RND was performed in 1case. 5) In the malignant tumor, we choose a radiation therapy as adjuvant therapy. 6) In a surgical complication of submandibular gland tumor, we had a facial nerve injury(1case). 7) Recurrence rate of submandibular gland tumor was 22.2%, and than all case were malignant tumor. Overall 5-year survival rate of submandibular gland cancer was 50%. Conclusion: In above results, postoperative recurrence rate is low in benign, but high in malignant tumor of submandibular gland. Surgical procedure should not be aggressive in benign tumor, but should be aggressive in malignant tumor of submandibular gland and an adjuvant radiation therapy should be considered.

• Journal of Yeungnam Medical Science
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• v.9 no.2
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• pp.321-326
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• 1992

The study consisted of all patients over 35years old undergoing surgical repair of atrial septal defect for the period from June 1985, to August 1992. The following results were observed. 1. ASD was closed with patch in 11(73%) patients. 2. The relationship of pulmonary artery systolic pressure to Qp/Qs ratio was not significant. 3. Before operation 6 patients were in NYHA functional class II, 8 were in class III, After operation 8 patients were in class I, 6 were in class II. 4. Atrial fibrillation has persisted in 3 patients and returned regular rhythm in 1 patient after surgery. 5. There was no operative mortality and we had good surgical results regardless of patient's age.