Journal of Yeungnam Medical Science

Sang Hyun Woo

8 Articles

The Effects of Dimethly Sulfoxide and Sodium thiosulfate for the Prevention of Tissue Necrosis due to Extravasation of Mitomycin-C.: Sang Hyun Woo, Byung Cheol Choi, Ki Hyung Kim, Jung Hyun Seul, Tae Eun Jung; Yeungnam Univ J Med. 1996;13(2):243-250. Published online December 31, 1996; DOI: https://doi.org/10.12701/yujm.1996.13.2.243

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Abstract PDF: Extravasation of toxic chemotherapeutic 'agents cause severe skin ulceration and necrosis which often need secondary surgical intervention. Still, there were not established antidote agent in case of extravasation with mitomycin-c. Dimethyl sulfoxide is known as an effective chemical scavenger of toxic hydroxyl free radical and sodium thiosulfate also was demonstrated significant protector from mitomycin-c induced ulceration by a few experimental studies. Author investigated necrotic area of mitomycin-c injected site and compare to the effectiveness of topical treatment with dimethyl sulfoxide and intradermal injection of sodium thiosulfate according to starting times, forty five mice were divided into 3 groups. Control group(n=5) had no treatment after subcutaneous injection of mitomycin-c. Experimental group I and 11 were 20 mice treated dimethyl sulfoxide and sodium.

Resurfacing of the Open Wound of the Hand with Free Arterialized Venous Falp.: Sang Hyun Woo, Seong Eon Kim, Jae Ho Jeong, Kyung Ho Lee, Jung Hyun Seul; Yeungnam Univ J Med. 1994;11(2):303-313. Published online December 31, 1994; DOI: https://doi.org/10.12701/yujm.1994.11.2.303

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Abstract PDF: Since introduction of venous flap in 1980, many experimental studies and clinical applications of various kinds of venous flaps were reported. Venous flap has the following advantages : (1) nonbulky and goo-quality of flap (2) long & large vascular pedicle (3) easy & rapid elevation of flap (4) no sacrifice of major arteries (5) a single operative field. But, we also have some disadvantages of difficult handling of the pliable veins and the tmcertainty of flap survival. For the better result we had to design the size of the flap larger than that of defect and increase the number of draining vein to reduce the postoperative edema of the flap. We have treated the defects of soft tissue of the hand using free arterialized venous flap from the flexor aspect of the forearm & had an excellent results.

Aesthetic facial bone contouring surgery in Koreans.: Sang Hyun Woo, Kyung Ho Lee, Jung Hyun Seul; Yeungnam Univ J Med. 1993;10(1):82-90. Published online June 30, 1993; DOI: https://doi.org/10.12701/yujm.1993.10.1.82

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Abstract PDF: No abstract available.

Reconstruction of Midface Defect with Latissimus Dorsi Myocutaneous Free Flap.: Jeong Cheol Kim, Sang Hyun Woo, Tae Hoon Lee, See Ho Choi, Jung Hyun Seul; Yeungnam Univ J Med. 1990;7(1):173-179. Published online June 30, 1990; DOI: https://doi.org/10.12701/yujm.1990.7.1.173

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Abstract PDF: We report 2 cases of midface defect reconstructed with latissimus dorsi myocutaneous free flap. In these cases, the main points to cover the defects were as follows: 1. For the contour of zygoma and maxilla, it was well preserved without bone graft which was not used for second stage reconstruction. In first case, for application of artificial eyes and in second case, for operation after full development. 2. For the drainage of paranasal sinuses, we made the nostril with skin graft, and it was well preserved without any complications during follow up. 3. It was sufficient to cover the defect with latissimus dorsi muscle well designed before surgery and thick enough to fill the defect. 4. In second case, the remained defect of palate and maxilla was not covered for the appropriate reconstructions after full development. In conclusions, we experienced two cases of midface defect reconstructed with latissimus dorsi myocutaneous free flap without any complication and with good results.

Microvascular Anastomosis Using Horizontal Mattress Suture Technique.: Sang Hyun Woo, Jeong Cheol Kim, Yung Sik Jung, See Ho Choi, Won Hee Choi; Yeungnam Univ J Med. 1989;6(2):71-78. Published online December 31, 1989; DOI: https://doi.org/10.12701/yujm.1989.6.2.71

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Abstract PDF: Horizontal Mattress Suture Technique on Microvascular Anastomosis of rat (body weight: 200-250 gm) femoral artery was evaluated. The present study was conducted to compare the horizontal mattress suture with simple interrupted suture on the suture time, patency rate of the sutured vessels, and the histological changes of surgical site of the vessel wall during wound healing period. The mean suture time of the vessel wall with horizontal mattress suture technique was 15 min 49 sec ± 2.14, which is significantly shorter than that of simple interrupted suture technique. The patency rate of the sutured vessel in both groups was statistically not different each other till post-operative 3rd day but patency rate of horizontal mattress suture was higher than that of simple interrupted suture at post-operative 3rd week. The histological findings such as intimal noss, medial degeneration and intimal regeneration were similar in both groups.

Augumentation Rhinoplasty Using Autogenous Cranial Bone Graft.: Jeong Cheol Kim, Sang Hyun Woo, Jae Ho Jeong, See Ho Choi, Jung Hyun Seul; Yeungnam Univ J Med. 1989;6(1):133-140. Published online June 30, 1989; DOI: https://doi.org/10.12701/yujm.1989.6.1.133

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Abstract PDF: Augumentation rhinoplasty using autogenous cranial bone graft (outer table) can be used more successfully than other methods. In patients with congenital or posttraumatic severe saddle nose deformity and lateral deviation, cranial bone graft is an excellent method of augumentation. The advantages of cranial bone graft compared with traditional method of bone graft are summarized as follows; 1. Easy to reach donor site 2. Abundance of material 3. Little pain and functional disability 4. Shorter hospitalization period 5. Inconspicuous donor scar 6. No secondary deformity of donor site 7.Appropriate curvature can be obtained by proper selection of donor site. With the above advantages, we conclude that augumentation rhinoplasty using split cranial bone graft is a good method in correction of congenital or posttraumatic deformity of nose.

Use of the Autogenous Calvarial Bone in Craniofacial Bone Graft.: Sang Hyun Woo, Jae Ho Chung, Tae Hoon Lee, See Ho Choi, Jung Hyun Seul; Yeungnam Univ J Med. 1987;4(2):75-81. Published online December 31, 1987; DOI: https://doi.org/10.12701/yujm.1987.4.2.75

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Abstract PDF: Bone grafts are an integral and important aspect of craniofacial reconstruction. Rips, tibia, and iliac bone have traditionally used as donor site but each of these has various problems, however using to the calvarial bone as a donor site has several advantage. These are as follows; there are abundance of material, easy to reach the donor site through coronal incision, minimal pain of donor area, less functional inability, shorter hospitalization, no need of immobilization, hidden scar at donor site, no secondary deformity and appropriate curvature obtained properly selected. From March to December 1987, we experienced three cases of autogenous calvarial bone graft such as congenital saddle nose deformity, fibrous dysplasia on the right side frontal bone, and deviated nose. The results were very excellent without any significant complication. The detail technique of autogenous calvarial bone graft and its advantages compared with the traditional methods of bone grafts are discussed.

Reduction Mammaplasty by the Inferior Dermal Flap (Modified Mckissock Method).: Sang Hyun Woo, Jung Hyun Seul; Yeungnam Univ J Med. 1987;4(2):51-58. Published online December 31, 1987; DOI: https://doi.org/10.12701/yujm.1987.4.2.51

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Abstract PDF: The goal of reduction mammaplasty is a breast with natural contour and volume, aesthetically situated scars, and a well-placed, sensate nipple and areola. The most successful techniques achieve this through the excision of tissue from the lower part of the breast based on some variation. However, the Mckissock's vertical bipedicle technique is the popular method for reduction mammaplasty. As an alternative modified Mckissock's method, we have found the use of only an inferior dermal flap with a keyhole pattern to be a simple and safe method for obtaining satisfactory aesthetic results. We have used inferior dermal flap for 4 patients recently and obtained the advantages as below compare to the Mckissock's method. 1. Rich blood supply to the broad based inferior flap. 2. More easy transposition of the nipple and areola. 3. More good operation field for resection of breast tissue. 4. Short operation time. 5. Can applied to the gigantomastia.

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