• Journal of Chest Surgery
• /
• v.34 no.8
• /
• pp.597-603
• /
• 2001

Background: The purpose of writing this article is to get better clinical results and further clinical improvement based on subject to 110 cases of cardiac surgery which were performed and clinically analyzed. Material and Method: Since January 1995, the patent ductus arteriosus surgery had started in our hospital. In February 1999, an open heart surgery had started and up to September 2000, total of 110 cases were performed as of double ligation of patent ductus arteriosus(10 cases) and open heart surgery(100 cases). Result: Among the patients, Korean-Chines was 74(67.3%) and Han-Chinese was 35(31.8%). Congenital heart disease was 95 cases and acquired valvular heart disease was 15 cases. 83 cases of acyanotic congenital heart disease consisted of ventricular septal defect(VSD) with associated anomaly(45 cases), atrial septal defect(ASD) with associated anomaly(20 cases), patent ductus arteriosus(PDA) with associated anomaly(11 cases), cogenital aortic stenosis(5 cases), double chamber right ventrical(1 case) and Ebstein's anomaly(1 case). Among the 12 cases of cyanotic congenital heart disease, 11 cases of tetralogy of Fallot underwent total correction. Among the 15 cases of acquired valvular heart disease, valvular replacement(7 cases), double valve replacement (3 cases), mitral valve replacement(3 cases) and aortic valve replacement(1 case) were performed. And 8 cases of valvuloplasty were performed by using of commissurotomy, chordal plasty, plasty of papillary muscle, ring type annuloplasty, repair of leaflet. Conclusion: on cogenital heart disease, short term results of surgery for acyanotic cogenital heart disease was good. Among the cyanotic congenital heart disease, tetralogy of Fallot showed a little difference of recovery according to the surgery method so that further follow up observation was needed for long term result. On acquired valvular heart disease, especially, in terms of short term result of valvuloplasty, was relatively good, but further follow up observation was also needed for long term result. There wasn's any operative mortality.

• Archives of Craniofacial Surgery
• /
• v.9 no.2
• /
• pp.105-109
• /
• 2008

Temporomandibular joint(TMJ) and dental occlusion are important in functional aspect as well as in cosmetic aspect for craniofacial surgery such as orthognathic and traumatic surgery. During these operations, appropriate maxillomandibular fixation(MMF) is especially necessary to conserve or reconstruct, dynamic TMJ and functional occlusion. Arch bar is one of the most popular method to gain proper MMF. Seventeen patients including 5 patients with mandibular fracture, 12 patients with orthognathic surgery(6 patients had relatively normal occlusion, however 6 patients had facial anomalies such as hemifacial microsomia with irregular occlusal plane.) were joined in this study. Arch bar was contoured on the dental cast, which was prepared for model surgery, prior to apply it on the facial anomaly patient. On using pre-contoured arch bar, patients felt better during the procedure and surgeons saved time. Moreover, well-contoured arch bar promises precise transmission of force on the bone, which implies surgeons do not need to worry about the occlusion while fixing bony structures. Authors suggest how to apply arch bar to satisfy basic theories about dental row and occlusion based on the experience. In addition, it is proposed to contour arch bar on the dental impression prior to apply it on the patient who has irregular and complex occlusal plane.

• Journal of Chest Surgery
• /
• v.31 no.8
• /
• pp.763-769
• /
• 1998

Background: Supravalvular aortic stenosis is a rare form of congenital cardiac anomaly involving ascending aorta distal to coronary orifice. Materials and methods: We operated 12 cases of supravalvular aortic stenosis between July 1986 and March 1997. Age ranged from 4 to 17(mean 10.2) years and 11 of them were male. Nine patients had clinical features of Williams syndrome. We experienced two types of supravalvular aortic stenosis, including 10 hour glass type and 2 diffuse type. Results: Preoperative transaortic pressure gradient ranged from 40 to 180(mean 92) mmHg by cardiac catheterization. Pulmonary stenosis was associated in 5 and 2 of them required angioplasty. Operative techniques included 6 standard aortoplasty with elliptical patch, 4 extended aortoplasty with inverted Y shaped patch, and 2 modified Brom's repair. There were no operative deaths. Postoperative echocardiographic evaluation was done at a mean interval of 12 months. Grade I or II aortic regurgitation was found in 3 cases. Postoperative cardiac catheterization revealed a mean transaortic pressure gradient of 26 (range 0 to 75) mmHg. A mean pressure drop was 78(range 30 to 114) mmHg. All patients were followed up for a mean of 40(range 1 to 67) months with uneventful clinical course. Conclusions: Our data proved the low mortality and excellent hemodynamic improvement after surgical relief of supravalvular aortic stenosis in children.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.40 no.3
• /
• pp.209-215
• /
• 2013

Cleft lip and palate, the most common craniofacial anomalies, are severe congenital defects that have an incidence of 0.28 to 3.74 per 1000 live births. Although there has been great improvement in the field of cleft surgery, surgical approach cannot be the single solution to resolve the various problems encountered in patients with cleft lip and palate. The concept of presurgical infant orthopedics (PSIO) for gradual closure of the cleft gap and simplified surgical performance was first introduced by McNeil in 1950. Recently, there are many attempts not only to approximate the alveolar segments but also to reshape the nasal cartilage. Three infants with unilateral cleft lip and palate were referred from the department of Plastic Surgery for presurgical nasoalveolar molding (PNAM). Maxillary appliances using resin with orthodontic wire were fabricated. Then these appliance was applied until patients underwent lip surgery. In all cases, the patients could wear the appliance all day since they were able to eat even with the appliance on, This resulted in significant improvements in the nasal symmetry were found. Our appliance, namely K-NAM, extends the wearing time within the limited period and as a result it is expected to maximize the treatment effects. Used properly, this appliance would play a major role in enhancing nasal symmetry with satisfactory results.

• Journal of Chest Surgery
• /
• v.31 no.4
• /
• pp.393-397
• /
• 1998

A 25-year-old man with viral cardiomyopathy and chronic active hepatitis successfully underwent dynamic cardiomyoplasty for the first time in Korea on July 30, 1996. The patient had been intermittently dyspneic for 5 years and was admitted to our center twice because of heart failure. For the past 2 years, he was NYHA functional class III status with a left ventricular ejection fraction(LVEF) of around 30%. The patient was born with scoliosis and showed a short stature. The liver function showed elevated liver enzymes, and hepatitis B antigen was positive. The liver biopsy revealed chronic active hepatitis. The preoperative echocardiogram showed decreased left ventricular function with grade II mitral and grade II tricuspid regurgitation with dilated left and right atrium. Recently his symptoms worsened and we decided to perform a dynamic cardiomyoplasty. The left latissmus dorsi muscle(LDM) was mobilized and tested with lead placement on his right lateral decubitus position. The patient was positioned into supine and, after median sternotomy, the heart was wrapped with the mobilized muscle. The Russian made cardiomyostimulator(EKS-445) and leads (Myocardial PEMB for heart and PEMP-1 for LDM) were used. The total operation time was 8 hours and there were no perioperative episodes. Postoperatively the LDM had been trained for a 10 week period and currently the stimulation ratio is maintained at 1:4. The postoperative LVEF did not increase with the value of 30-35%. However, the patient feels better postoperatively with slightly increased activity.

• The Academic Congress of Korean Shoulder and Elbow Society
• /
• 2007.03a
• /
• pp.93-93
• /
• 2007

• 대한치주과학회:학술대회논문집
• /
• 2003.11a
• /
• pp.133-133
• /
• 2003

• Proceedings of the Korean Society for Technology of Plasticity Conference
• /
• 2005.05a
• /
• pp.442-444
• /
• 2005

• Korean Journal of Bronchoesophagology
• /
• v.4 no.1
• /
• pp.7-14
• /
• 1998

• Journal of Chest Surgery
• /
• v.34 no.9
• /
• pp.692-697
• /
• 2001

Background: The left main coronary artery surgical angioplasty has become the choice of surgical procedure in isolated LM disease. We have performed 22 cases of LMCA surgical angioplasy since 1996. We report the immediate and long term result of the surgical angioplasty with their postoperative angiography. Material and Method: Between July 1994 and October 2000, 22 patients(11 men and 11 women) were subjected to surgical patch angioplasty of the LMCA, 1 patient had an additional angioplasty performed on the proximal right coronary artery. The LMCA was approached anteriorly with or without transection of the main pulmonary artery(21 cases), and in a patient who had undergone an aortic valve replacement, LMCA was approached superiorly with transection of the ascending aorta. Additional grafting was required in 5 cases. The on-lay patch was used with autologous pericardium in 6 cases and bovine pericardium in 16 cases. Result: There was no operative mortality. There was 30~50% stenosis of the anastomosis site in 3 cases at the postop. coronary angiography. Coronary angiography was reperformed in 5 cases between 5th months and 15th months postoperatively. There was 40~60% stenosis of the anastomosis site in 2 cases. There was one death at 42nd months postoperatively but the cause was unknown. No patient complained of angina with a mean follow up of 48.$\pm$22.5 months. Conclusion: There were only several coronary angiographic results in long term follow-up but we had relatively good clinical results for LMCA surgical angioplasty in the immediate and long term. The excellence of LMCA surgical angioplasty needs the result of the long term follow-up.