• Title/Summary/Keyword: Vascularity

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Operative Correction of Total Left Anomalous Pulmonary Venous Return - A Report of one case - (좌측 총폐정맥 환류이상의 수술 교정 - 1례 보고 -)

  • 류한영
    • Journal of Chest Surgery
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    • v.23 no.5
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    • pp.962-967
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    • 1990
  • The anomalous pulmonary venous return of the entire left lung was an extremely rare congenital anomaly. The reported surgical experience with correction of this disorder was limited. The 3-year-old female patient underwent an operation upon the unilateral total anomalous pulmonary venous return from the left lung, in which the left superior pulmonary vein drained into innominate vein and the left inferior pulmonary vein into the coronary sinus, in Yeungnam University Hospital. The symptoms were nonspecific except frequent upper respiratory infection. Cyanosis was not seen. On auscultatory findings, a grade 2/6 systolic ejection murmur was audible over left second intercostal space of left sternal border and second heart sound had an increased pulmonary component which was widely splitted. The electrocardiogram demonstrated a right ventricular hypertrophy and right axis deviation and chest X-ray showed slightly increased pulmonary vascularity and bulged pulmonary conus. The echocardiogram demonstrated increased right atrial, ventricular, and pulmonary arterial dimension, and also secundum atrial septal defect and enlarged coronary sinus. The cardiac catheterization confirmed the left-to-right with a Qp/Qs of 2.0: 1 and oxygen step-up was seen in pulmonary artery, right ventricle, right atrium, and left innominate vein, and the catheter was not been introduced into the left pulmonary vein. A median sternotomy incision was done. Left superior pulmonary vein was drained to the innominate vein through anomalous vertical vein and the left inferior pulmonary vein drained to right atrium through the coronary sinus. The diversion of the left inferior pulmonary vein to posterior wall of left atrium was done after division in the proximity of coronary sinus. The anomalous vertical vein was diverted to base of left atrial auricle and then a atrial septal defect was sutured directly. The postoperative course was uneventful and she was discharged on the eleventh postoperative day. In the postoperative follow-up-2 months, she has been well without specific problems.

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Distraction Osteogenesis for Maxillary Hypoplasia in a Cleft Patient (구순구개열환자에서 골신장술을 통한 상악골 열성장의 치험례)

  • Kim Jong-Ryoul;Byun June-Ho;Jang Won-Seok;Jung Tae-Young;Son Woo-Sung
    • Korean Journal of Cleft Lip And Palate
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    • v.6 no.1
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    • pp.27-34
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    • 2003
  • Patients with maxillary hypoplasia secondary to cleft lip and palate present numerous challenging problems for the oral and maxillofacial surgeon, These patients present with maxillary hypoplasia in multiclimensions, and often have thin or structually weak bone. This deformity has been traditionally corrected by Le Fort I osteotomy and acute skeletal advancement with wide surgical exposure. The long-term results of cleft patients with maxillary deficiency treated with this traditional approach has been sometimes disappointing, and an increased relapse tendency has been reported, Distraction osteogenesis for these cleft patients offers successful results while potentially minimizing the risk of relapse. Advancing the maxilla via distraction forces requires only a minor surgical procedure that maintains vascularity and neurosensory integrity. Moreover, the response of the facial soft tissues during maxillary distraction has proven to be more favorable than with a conventional LeFort I osteotomy. The purpose of this report is to present the use of maxillary distraction osteogenesis by rigid external distraction (RED) system for the treatment of patient with maxillary deficiency secondary to cleft lip and palate.

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EXPERIMENTAL STUDY OF EFFECTS OF THE PERIOSTEUM ON BONE FORMATION PROCESS AFTER FREEZE DRIED DEMINERALIZED ALLOGENEIC BONE GRAFTS (냉동 건조 탈회 동종골 이식후 골막이 골 형성 과정에 미치는 영향에 관한 실험적 연구)

  • Kwon, Hyeok-Do;Lee, Dong-Keun;Um, In-Woong;Min, Seung-Ki
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.17 no.4
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    • pp.337-349
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    • 1995
  • Periosteum in general is described as a specialized fibrous membrane of mesenchymal origin consisting of two basis layers : outer fibrous layer consists of irregularly arranged dense connective-tissue with fibroblasts, and inner osteogenic or cambial layer is composed of more loosely arranged fibers, greater vascularity and flatted spindle-shaped pre-osteoblasts. This periosteum may serve in controlling bone growth, especially mandibular growth has been emphasized. But, the periosteum enwrapping the facial skeleton have been studied for many years leaving a controversy in opinion regarding the function of these structures. We evaluated the bone formation activity of te periosteum in allogeneic bone grafts which bones are made of freeze-dried preparation preoperatively. We made the calvarial bone defects, 5 ${\times}$ 7mm sized, amd grafted with allogeneic bone in rats, which a half of specimens has dissected the overlying periosteum and a rest intacted. After bone grafting, we evaluated the capacity ofbone formation of periosteum, 1, 2, 4, 6, 8 weeks postoperatively. There are subtle differences of bone formation during early healing period after demineralized allogeneic bone grafting between control groups with periosteum and experimental groups without periosteum.

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Columellar reconstruction: a refinement of technique

  • Tzur, Rotem;Berezovsky, Alexander Bogdanov;Krieger, Yuval;Shoham, Yaron;Silberstein, Eldad
    • Archives of Craniofacial Surgery
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    • v.19 no.2
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    • pp.148-151
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    • 2018
  • The nose is an important landmark of the face and its shape and beauty is of significant concern. The columella is the subunit between the two nostrils that provides support and projection to the nasal tip and has functional role in nostrils, as well as aesthetic. Ethiology for columellar absence or deficiency is diverse, and it is one of the most complex nasal subunits to reconstruct because of its narrow horizontal dimension, its tenuous vascularity and limited availability of adjacent tissue. We present a patient with columellar, membranous septum and upper lip defect, due to oncological resection. The lip reconstruction was designed using advancement of two upper lip edges with the technique of webster perialar/nasocheek advancement. However, the perialar/nasocheek tissue which is usually discarded was used as inferiorly based skin flaps to reconstruct the membranous septum, columellar skin and nasal vestibule lining. Rib cage cartilage graft was used as columellar strut for support. At 1-year follow-up, the patient has good nasal contour and projection. Scaring of the columella is very subtle. This is a versatile way for successful reconstruction of a columella and large central facial defect in one-stage operation. It is a method which provides very satisfactory aesthetic result with minimum patient morbidity and discomfort.

Risk Factors of Treatment Failure in Diabetic Foot Ulcer Patients

  • Lee, Kyung Mook;Kim, Woon Hoe;Lee, Jang Hyun;Choi, Matthew Seung Suk
    • Archives of Plastic Surgery
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    • v.40 no.2
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    • pp.123-128
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    • 2013
  • Background Some diabetic feet heal without complication, but others undergo amputation due to progressive wounds. This study investigates the risk factors for amputation of diabetic feet. Methods A total of 55 patients who visited our institution from 2008 to 2012 were included in the study. The patients with abnormal fasting blood sugar levels, lower leg vascularity, and poor nutrition were excluded from the study group, and the wound states were unified. The patients were categorized into a treatment success group (n=47) and a treatment failure group (n=8), and their hemoglobin A1C (HgA1C), C-reactive protein (CRP), white blood cell count (WBC), and serum creatinine levels were analyzed. Results The initial CRP, WBC, and serum creatinine levels in the treatment failure group were significantly higher than that of the treatment success group, and the initial HgA1C level was significantly higher in the treatment success group. The CRP and WBC levels of both groups changed significantly as time passed, but their serum creatinine levels did not. Conclusions The initial CRP, WBC, and serum creatinine levels were considered to be risk factors for amputation. Among them, the serum creatinine level was found to be the most important predictive risk factor. Because serum creatinine represents the renal function, thorough care is needed for the feet of diabetic patients with renal impairment.

Urethroplasty of extensive penile urethral strictures with a longitudinal ventral tubed flap of penile skin (modified Orandi urethroplasty): 20 years of follow-up of two cases

  • Heo, Jae Won;Hong, Woo Taik;Kim, Yong Hun;Yang, Chae Eun;Kim, Jiye;Kim, Sug Won
    • Archives of Plastic Surgery
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    • v.47 no.6
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    • pp.613-618
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    • 2020
  • The surgical treatment of extensive urethral strictures remains a controversial topic; although techniques have evolved, there is still no definite method of choice. Since 1968, when Orandi presented an original technique for one-stage urethroplasty using a penile skin flap, the Orandi technique has become the most prevalently used one-stage procedure for anterior urethral strictures. We present a 20-year follow-up experience with one-stage reconstruction of long urethral strictures using a longitudinal ventral tubed flap of penile skin, with some important technical changes to Orandi's original technique to overcome the deficient vascularity caused by periurethral scar tissue. In 1997, a 55-year-old male patient complained of severe voiding difficulty and a weak urinary stream because of transurethral resection of the prostate due to benign prostatic hyperplasia. Another 47-year-old male patient had the same problem due to self-removal of a Foley catheter in 2002. In both patients, a urethrogram demonstrated extensive strictures involving the long segment of the anterior urethra. A rectangular skin flap on the ventral surface of the penis was used considering the appropriate length, diameter, and depth of the neourethra. The modified Orandi flap provided a pedicled strip of penile skin measuring an average of 8 cm. The mean duration of follow-up was 20.5 years. A long-term evaluation revealed stable performance characteristics without any complications.

Case Report of Breast Reconstruction with SIEA Flap (얕은 하복벽동맥 천공지 피판을 이용한 유방 재건술 - 2예 보고 -)

  • Lee, Min-Young;Eom, Jin-Sup;Lee, Taik-Jong
    • Archives of Reconstructive Microsurgery
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    • v.19 no.1
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    • pp.56-60
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    • 2010
  • Purpose: Breast reconstruction with abdominal flap has many advantages. However, it might cause abdominal complications such as bulging or hernia. SIEA (Superficial inferior epigastric artery) flap is the most advanced form of abdominal flap which has no adverse effect on abdominal fascia. We report 2 cases of breast reconstruction with SIEA flap with reference review. Methods: From Jun 2006 to Jan 2009, 110 patients underwent breast reconstruction with free abdominal flap. We tried to find the SIEA in every cases and adopted SIEP flap if the diameter was larger than 1mm and it had visible pulsation. 2 patients underwent breast reconstruction with SIEA flap. After design of abdominal flap SIEA was investigated with portable Doppler. SIEA was usually found 4-5 cm lateral to the midline. Flap was elevated with SIEA and SIEV to their maximal length at hiatus. Results: There were no complications, such as infection, hematoma, and necrosis of flap. In both cases, flaps survived completely with excellent vascularity and breast reconstruction was successful. In one case, there was skin necrosis of mastectomy flap, and it was healed by conservative management. Conclusion: With the SIEA flap, donor site morbidity can be minimized along with reduction of operation time. If there is reliable SIEA, SIEA flap would be the preferred skills. However, the limitation of the SIEA flap is difficulty in identifying the SIEA. The reason for less availability of the flap in Korea might include high prevalence of the Caesarian section scar and relatively higher level of the lower margin of the flap.

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Reconstruction of Soft Tissue Defects in the Finger using Arterialized Venous Free Flaps (유리 동맥화 정맥 피판을 이용한 수지 연부조직 결손의 재건)

  • Lee, Young-Keun;Woo, Sang-Hyun;Lee, Jun-Mo;Ahn, Hee-Chan;Cheon, Ho-Jun
    • Archives of Reconstructive Microsurgery
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    • v.19 no.1
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    • pp.21-28
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    • 2010
  • Purpose: To report the clinical results of the use of arterialized venous free flaps in reconstruction in soft tissue defects of the finger and to extend indications for the use of such flaps based on the clinical experiences of the authors. Materials and Methods: Eighteen patients who underwent arterialized venous free flaps for finger reconstruction, between May 2007 and July 2009 were reviewed retrospectively. The mean flap size was 4.7${\times}3.2$ cm. The donor site was the ipsilateral volar aspect of the distal forearm in all cases. There were 8 cases of venous skin flaps, 5 cases of neurocutaneous flaps, 4 cases of tendocutaneous flaps, 1 case of innervated tendocutaneous flap. The vascuality of recipient beds was good except in 4 cases (partial devascuality in 2, more than 50% avascuality (bone cement) in 2). Results: All flaps were survived. The mean number of included veins was 2.27 per flap. Mean static two-point discrimination was 10.5 mm in neurocutaneous flaps. In 3 of 5 cases where tendocutaneous flaps were used, active ROM at the PIP joint was 60 degrees, 30 degrees at the DIP joint and 40 degrees at the IP joint of thumb. There were no specific complications except partial necrosis in 3 cases. Conclusions: An arterialized venous free flap is a useful procedure for single-stage reconstruction in soft tissue or combined defect of the finger; we consider that this technique could be applied to fingers despite avascular recipient beds if the periphery of recipient bed vascularity is good.

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A Case of Hepatic Hemangioma (거대 간혈관종 1례(例))

  • Kim, Si-Hwan;Lee, Young-Hyun;Lee, Heon-Ju;Chung, Moon-Kwan;Choi, Soo-Bong;Kim, Chong-Suhl;Kwun, Koing-Bo;Hwang, Mi-Soo;Chang, Jae-Chun;Lee, Tae-Sook
    • Journal of Yeungnam Medical Science
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    • v.1 no.1
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    • pp.161-169
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    • 1984
  • Hepatic hemangioma is a benign neoplastic disease of the liver and characterized by high vascularity and accompanied with bleeding episode. We report a case of giant hepatic cavernous hemangioma and review the literature briefly. A 44-year old female patient was admitted because of palpable abdominal mass, which growing for 15 years. She was diagnosed as hepatic hemangioma by abdominal CT scan and selective celiac angiography. She was performed the left lateral segmentectomy of liver and the pathological report was cavernous hemangioma of the liver.

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Application of Hyperspectral Imaging System to Analyze Vascular Alteration for Preclinical Models (전임상 혈관분석을 위한 초분광 이미징 시스템의 활용)

  • Choe, Se-Woon;Woo, Young Woon
    • Journal of the Korea Society of Computer and Information
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    • v.20 no.4
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    • pp.69-76
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    • 2015
  • We present microscopy based hyperspectral imaging system that successively shows high spatial (micrometer) and temporal resolutions (milisecond), and acquired pseudocolor hemoglobin saturation map a result of various image processing techniques can provide additional information such as oxygen transport, abnormal vascularity and therapeutic effects besides structural and physiological measurements in various diseases. To increase understanding of vascular defects several optical methods of imaging for preclinical/clinical assessment have been developed so far. However, they have some limitations for outcoming resolution and user satisfaction level compared to its cost. A hyperspectral imaging system has shown a wide range of vascular characteristics associated with hypervascularity, aberrant angiogenesis or abnormal vascular remodeling in many diseases. This vascular characteristic is considered as a key component to diagnose and detect a type of disease as evidenced by them.