1.Facial Flap Repositioning in Posttraumatic Facial Asymmetry.
Il Hwan BYUN ; Dahn BYUN ; Woo Yeol BAEK
Archives of Craniofacial Surgery 2016;17(4):240-243
Perfect facial and body symmetry is an important aesthetic concept which is very difficult, if not impossible, to achieve. Yet, facial asymmetries are commonly encountered by plastic and reconstructive surgeons. Here, we present a case of posttraumatic facial asymmetry successfully treated with a unique concept of facial flap repositioning. A 25-year-old male patient visited our department with severe posttraumatic facial asymmetry. There was deviated nasal bone and implant to the right, and the actual facial appearance asymmetry was much more severe compared to the computed tomography, generally shifted to the right. After corrective rhinoplasty, we approached through intraoral incision, and much adhesion from previous surgeries was noted. We meticulously elevated the facial flap of both sides, mainly involving the cheeks. The elevated facial flap was shifted to the left, and after finding the appropriate location, we sutured the middle portion of the flap to the periosteum of anterior nasal spine for fixation. We successfully freed the deviated facial tissues and repositioned it to improve symmetry in a single stage operation. We conclude that facial flap repositioning is an effective technique for patients with multiple operation history, and such method can successfully apply to other body parts with decreased tissue laxity.
Adult
;
Cheek
;
Facial Asymmetry*
;
Human Body
;
Humans
;
Male
;
Methods
;
Nasal Bone
;
Periosteum
;
Plastics
;
Rhinoplasty
;
Spine
;
Surgeons
;
Surgical Flaps
2.The Keystone Flap in Greater Trochanter Pressure Sore.
Il Hwan BYUN ; Soon Sung KWON ; Seum CHUNG ; Woo Yeol BAEK
Archives of Reconstructive Microsurgery 2016;25(2):72-74
The keystone flap is a fascia-based island flap with two conjoined V-Y flaps. Here, we report a case of successful treatment of a trochanter pressure sore patient with the traditional keystone flap. A 50-year-old male patient visited our department with a 3×5 cm pressure sore (grade III) to the left of the greater trochanter that was covered with eschar. Debridement was done and the defect size increased to 5×8 cm in an elliptical shape. Doppler ultrasound was then used to locate the inferior gluteal artery perforator near the wound. The keystone flap was designed to the medial side. The perforator based keystone island flap covered the defect without resistance. The site remained clean, and no dehiscence, infection, hematoma, or seroma developed. In general, greater trochanter pressure sores are covered with a perforator based propeller flap or fascia lata flap. However, these flaps have the risk of pedicle kinking and require a large operation site. For the first time, we successfully applied the keystone flap to treat a greater trochanter pressure sore patient. Our design was also favorable with the relaxation skin tension lines. We conclude that the keystone flap including a perforator is a reliable option to reconstruct trochanteric pressure sores.
Arteries
;
Debridement
;
Fascia Lata
;
Femur*
;
Hematoma
;
Humans
;
Male
;
Middle Aged
;
Pressure Ulcer*
;
Relaxation
;
Seroma
;
Skin
;
Ultrasonography
;
Wounds and Injuries
3.Perforator Based Tibialis Anterior Segmental Muscle Island Flap in Lower Extremity Reconstruction.
Il Hwan BYUN ; Soon Sung KWON ; Seum CHUNG ; Woo Yeol BAEK
Archives of Reconstructive Microsurgery 2016;25(2):69-71
Reconstruction of the lower extremities is difficult due to a lack of skin laxity and muscular tissues. Here, we present a case of lower extremity reconstruction via the anterior tibial artery perforator based segmental muscle island flap. Our patient was a 75-year-old male with a chronic ulcerative wound on the right lower leg from an old car accident. A 5.0×0.5 cm size ulcerative wound with tibial bone exposure was noted. We planned to reconstruct the lower extremity defect with a free flap, but the vessel status was severely compromised intraoperatively. Thus, we found the anterior tibial artery perforator using Doppler ultrasound, elevated the tibialis anterior muscle segment flap, and transposed it to cover the defect successfully. The flap presented with a nice contour and the skin graft covering the flap survived completely. There were no complications of the surgical site at three months follow-up and no gait morbidity. This is a meaningful case applying the concept of segmental muscle flap based on a perforator that had advantages including proper bulkiness, vascularization, and preservation of function, which were well applied, leading to great success.
Aged
;
Follow-Up Studies
;
Free Tissue Flaps
;
Gait
;
Humans
;
Leg
;
Lower Extremity*
;
Male
;
Perforator Flap
;
Skin
;
Tibial Arteries
;
Transplants
;
Ulcer
;
Ultrasonography
;
Wounds and Injuries
4.Nuss Procedures using a Transilluminated Introducer.
Seong Jin LEE ; Kang Seok BAEK ; Cheol Woo JEON ; Seock Yeol LEE ; Chol Sae LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2008;41(6):803-806
The Nuss procedure has good cosmetic effects, but it could be cause of bleeding and organ injury during dissection of the anterior mediastinum. We have made an effort to overcome the defects of the traditional method through the anterior mediastinum, thus we developed a transilluminated introducer that made it safer and simpler to operate within a 1 cm incision only. A total of 67 patients underwent the Nuss procedure using the transilluminated introducer. Thirty-six patients underwent the procedure with the transilluminated introducer only (age<14 years). Thirty-one patients had an additional thoracoscopy (age> or =14 years). There were no major complications, such as massive bleeding or organ injury in the thoracic cavity during or after the Nuss procedure. Our findings demonstrated that the anterior mediastium could be dissected simply and safely by the use of a transilluminated introducer during the Nuss procedure without fatal major complications, such as bleeding and organ injury.
Cosmetics
;
Funnel Chest
;
Hemorrhage
;
Humans
;
Mediastinum
;
Thoracic Cavity
;
Thoracic Wall
;
Thoracoscopy
5.A Retrospective Analysis of Ruptured Breast Implants.
Woo Yeol BAEK ; Dae Hyun LEW ; Dong Won LEE
Archives of Plastic Surgery 2014;41(6):734-739
BACKGROUND: Rupture is an important complication of breast implants. Before cohesive gel silicone implants, rupture rates of both saline and silicone breast implants were over 10%. Through an analysis of ruptured implants, we can determine the various factors related to ruptured implants. METHODS: We performed a retrospective review of 72 implants that were removed for implant rupture between 2005 and 2014 at a single institution. The following data were collected: type of implants (saline or silicone), duration of implantation, type of implant shell, degree of capsular contracture, associated symptoms, cause of rupture, diagnostic tools, and management. RESULTS: Forty-five Saline implants and 27 silicone implants were used. Rupture was diagnosed at a mean of 5.6 and 12 years after insertion of saline and silicone implants, respectively. There was no association between shell type and risk of rupture. Spontaneous was the most common reason for the rupture. Rupture management was implant change (39 case), microfat graft (2 case), removal only (14 case), and follow-up loss (17 case). CONCLUSIONS: Saline implants have a shorter average duration of rupture, but diagnosis is easier and safer, leading to fewer complications. Previous-generation silicone implants required frequent follow-up observation, and it is recommended that they be changed to a cohesive gel implant before hidden rupture occurs.
Breast Implantation
;
Breast Implants*
;
Contracture
;
Diagnosis
;
Follow-Up Studies
;
Retrospective Studies*
;
Rupture
;
Silicone Gels
;
Transplants
6.Methodology in Conventional Head and Neck Reconstruction Following Robotic Cancer Surgery:A Bridgehead Robotic Head and Neck Reconstruction
Jongmin WON ; Jong Won HONG ; Mi Jung KIM ; In-sik YUN ; Woo Yeol BAEK ; Won Jai LEE ; Dae Hyun LEW ; Yoon Woo KOH ; Se-Heon KIM
Yonsei Medical Journal 2022;63(8):759-766
Purpose:
Robotic head and neck surgery is widespread nowadays. However, in the reconstruction field, the use of robotic operations is not. This article aimed to examine methodologies for conventional head and neck reconstruction after robotic tumor surgery in an effort to obtain further options for future reconstruction manipulations.
Materials and Methods:
A retrospective review of all patients who received head and neck robot surgery and conventional reconstructive surgery between October 2016 and September 2021.
Results:
In total, 53 cases were performed. 67.9% of the tumors were greater than 4 cm. Regarding defect size, 47.2% of the lesions were greater than 8 cm. In terms of TNM stage, stage 3 disease was recorded in 26.4% and stage 4 in 52.8%. To make a deep and narrow field wider, we changed the patient’s posture in pre-op field, additional dissection was done. We used radial forearm flap mostly (62.2%).
Conclusion
Conventional head and neck reconstruction after robotic ENT cancer surgery is possible. One key step is to secure additional space in the deep and narrow space left after robotic surgery. For this, we opted for a radial forearm flap mostly. This can be performed as a bridgehead to perform robotic head and neck reconstruction.
7.Severe Imatinib-Associated Skin Rash in Gastrointestinal Stromal Tumor Patients: Management and Clinical Implications.
Sook Ryun PARK ; Min Hee RYU ; Baek Yeol RYOO ; Mo Youl BECK ; In Soon LEE ; Mi Jung CHOI ; Mi Woo LEE ; Yoon Koo KANG
Cancer Research and Treatment 2016;48(1):162-170
PURPOSE: This study evaluated the incidence of imatinib-associated skin rash, the interventional outcomes of severe rash, and impact of severe rash on the outcomes of imatinib treatment in gastrointestinal stromal tumor (GIST) patients. MATERIALS AND METHODS: A total of 620 patients were administered adjuvant or palliative imatinib for GIST at Asan Medical Center between January 2000 and July 2012. This analysis focused on a group of 42 patients who developed a severe rash requiring major interventions, defined as dose interruption or reduction of imatinib or systemic steroid use. RESULTS: Of the 620 patients treated with imatinib, 148 patients (23.9%) developed an imatinib-associated skin rash; 42 patients (6.8%) developed a severe rash requiring major intervention. Of these, 28 patients (66.8%) successfully continued imatinib with interventions. Serial blood eosinophil levels during imatinib treatment were associated with skin rash and severity. A significant association was observed between successful intervention and blood eosinophil level at the time of intervention initiation. In metastatic settings, patients with severe rash requiring major interventions tended to show poorer progression-free survival than patients who did not require major intervention and patients with no rash, although this finding was not statistically significant (p=0.326). CONCLUSION: By aggressive treatment of severe rash through modification of imatinib dose or use of systemic steroid, the majority of patients can continue on imatinib. In particular, imatinib dose intensity can be maintained with use of systemic steroid. Measuring the blood eosinophil levels may be helpful in guiding the management plan for skin rash regarding the intensity and duration of interventions.
Chungcheongnam-do
;
Disease-Free Survival
;
Eosinophils
;
Exanthema*
;
Gastrointestinal Stromal Tumors*
;
Humans
;
Incidence
;
Skin*
;
Treatment Outcome
8.The Effect of Combination Chemotherapy with Vinorelbine, Carboplatin, and Ifosfamide in Patients with Advanced Non-Small Cell Lung Cancer.
Young Woo LEE ; Baek Yeol RYOO ; Tae You KIM ; Bong Seog KIM ; Yeon Hee PARK ; Hyun Ju HONG ; Jin Young KWAG ; Sang Won LEE ; Yoon Koo KANG
Journal of the Korean Cancer Association 1999;31(6):1227-1235
PURPOSE: Despite recent advances in chemotherapy, the treatment outcome of advanced non-small cell lung cancer (NSCLC) remains poor and NSCLC is still the predominant source of cancer-related mortality in worldwide. Thus, we evaluated the efficacy and safety of a combination chemotherapy with vinorelbine, carboplatin, and ifosfamide (NCI) in advanced NSCLC patients. MATERIALS AND METHODS: A total of 26 patients was enrolled in this study between December 1997 and June 1998. All entered patients were treated with NCI combination chemotherapy (vinorelbine 25 mg/m2/day i.v. days 1 and 8; carboplatin 300 mg/m2/day i.v. day 1; ifosfamide 3 g/m2/day i.v. day I; and mesna 2.4 g/m2/day i.v. day 1 after completion of ifosfamide infusion, treatment repeated every 4 weeks). RESULTS: Among 26 patients, 23 patients were evaluable. Nine out of 23 evaluable patients had a partial response (response rate 39%; 95% confidence interval 19~59%). The median survival of the total 23 evaluable patients was 7.4 (range; 3~9.3+) months. The median progression-free survival was 2.8 (range; 0~7.7+) months. Among total 70 cycles of chemotherapy, leukopenia of grade II or more was observed in 6%, and tbrombo- cytopenia of grade II or more in 1%. There was no treatment-related death. Main non-hematologic toxicities were nausea/vomiting, stomatitis and peripheral phlebitis, almost of which were tolerable. CONCLUSION: NCI chemotherapy seemed to be moderately active and well tolerated in patients with advanced NSCLC.
Carboplatin*
;
Carcinoma, Non-Small-Cell Lung*
;
Disease-Free Survival
;
Drug Therapy
;
Drug Therapy, Combination*
;
Humans
;
Ifosfamide*
;
Leukopenia
;
Mesna
;
Mortality
;
Phlebitis
;
Stomatitis
;
Treatment Outcome
9.Classification of Metastatic versus Non-Metastatic Axillary Nodes in Breast Cancer Patients: Value of Cortex-Hilum Area Ratio with Ultrasound.
Sung Eun SONG ; Bo Kyoung SEO ; Seung Hwa LEE ; Ann YIE ; Ki Yeol LEE ; Kyu Ran CHO ; Ok Hee WOO ; Sang Hoon CHA ; Baek Hyun KIM
Journal of Breast Cancer 2012;15(1):65-70
PURPOSE: To investigate the significance of the cortex-hilum (CH) area ratio and longitudinal-transverse (LT) axis ratio and the blood flow pattern for diagnosis of metastatic axillary lymph nodes by ultrasound in breast cancer patients. METHODS: From October 2005 to July 2006, we prospectively evaluated axillary nodes with ultrasound in 205 consecutive patients who had category 4B, 4C or 5 breast lesions according to the Breast Imaging Reporting and Data System-Ultrasound (BI-RADS-Ultrasound(R)). Among the 205, there were 24 patients who had pathologic verification of breast cancer and axillary lymph node status. For a total of 80 axillary nodes we measured the areas of the cortex and hilum of lymph nodes and calculated the area ratio. We also measured the length of the longitudinal and transverse axis of the lymph nodes and calculated the length ratio. We evaluated the blood flow pattern on power Doppler imaging and classified each lymph node into a central or peripheral pattern. Diagnostic performance was analyzed according to positive criteria for lymph node metastasis (CH area ratio >2, LT axis ratio <2, peripheral type on power Doppler imaging). RESULTS: The sensitivity of the CH area ratio was superior to that of the LT axis ratio (94.1% vs. 82.3%, p=0.031) and to that of the blood flow pattern (94.1% vs. 29.4%, p=0.009). For specificity, all three evaluating parameters had high values (89.1-95.6%) and no significant differences were found (p=0.121). The CH area ratio had a better positive predictive value than the LT axis ratio (94.1% vs. 80.0%, p=0.030) and power Doppler imaging (94.1% vs. 66.6%, p=0.028). For the negative predictive value, the CH area ratio was superior to the LT axis ratio (95.6% vs. 86.6%, p=0.035) and the blood flow pattern (95.6% vs. 63.0%, p=0.027). CONCLUSION: We recommend the CH area ratio of an axillary lymph node on ultrasound as a quantitative indicator for the classification of lymph nodes. The CH area ratio can improve diagnostic performance when compared with the LT axis ratio or blood flow pattern.
Axis, Cervical Vertebra
;
Breast
;
Breast Neoplasms
;
Humans
;
Lymph Nodes
;
Lymphatic Metastasis
;
Neoplasm Metastasis
;
Prospective Studies
;
Sensitivity and Specificity
10.A Case of Unruptured Aneurysm of the Right Sinus of Valsalva with Right Ventricular Outflow Obstruction.
Eun CHUNG ; Ju Yeol BAEK ; Han Hee CHUNG ; Seong Il PARK ; Ji Hye JANG ; Hyun A YU ; Gi Hyeon WOO ; Ho Joong YOUN
Korean Circulation Journal 2014;44(4):274-277
A 66-year-old man presented with exertional dyspnea. He was found to have an unruptured aneurysm of the right sinus of Valsalva causing significant right ventricular outflow obstruction. This aneurysm was diagnosed by transthoracic two-dimensional echocardiography, transthoracic three-dimensional echocardiography, transesophageal echocardiography, contrast echocardiography and 64-slice multidetector cardiac computed tomography. Because unruptured aneurysms of the sinus of Valsalva are rarely symptomatic, they can be difficult to detect. However, the unruptured aneurysm of the right sinus of Valsalva in this case caused significant right ventricular outflow tract obstruction, resulting in exertional dyspnea.
Aged
;
Aneurysm*
;
Dyspnea
;
Echocardiography
;
Echocardiography, Three-Dimensional
;
Echocardiography, Transesophageal
;
Humans
;
Sinus of Valsalva*
;
Ventricular Outflow Obstruction*