• The Korean Journal of Nuclear Medicine
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• v.29 no.1
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• pp.22-30
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• 1995

To predict preoperatively the safety of permanent occlusion of an internal carotid artery with $^{99m}Tc$-HMPAO brain single photon emission computed tomography(SPECT) from an objective point of view, Twenty-four patients underwent balloon test occlusion (BTO) of the internal carotid arteries because of neck and skull base tumors. The authors assessed the uptake of both middle cerebral artery territories before and during BTO with $^{99m}Tc$-HMPAO brain SPECT using semiquantitative analysis method and compared the results with other factors(neurologic examination, arterial stump pressure and electroenceph-alogram). Nineteen patients had not experienced neurological deteriorating or any problem during BTO. Their comparative uptakes of the middle cerebral artery territories were 95 to 101% of the pre-BTO state. The remaining five patients showed severe neurologic symptoms such as transient hemiplegia and unconsciousness. Their comparative uptake of the middle cerebral artery territories were 77 to 85% of the pre-BTO state, and were well matched with other factors. $^{99m}Tc$-HMPAO brain SPECT before and during BTO seems to be a simple and objective method for prediction of permanent neurologic deficits when the comparative uptake of middle cerebral artery territories during BTO is lower than 85% of that before BTO.

• Proceedings of the KTCVS Conference
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• 1996.10a
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• pp.114-114
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• 1996

• 대한두경부종양학회:학술대회논문집
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• 1998.11a
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• pp.291.1-291.1
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• 1998

• Neonatal Medicine
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• v.17 no.2
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• pp.201-206
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• 2010

Purpose: Recently, after patent ductus arteriosus (PDA) ligation in preterm infants, unexplained hemodynamic instabilities are reported. To determine the incidence, risk factors and clinical manifestations of hemodynamic instability after PDA ligation in very low birth weight (VLBW) infants. Methods: This retrospective multicenter study enrolled 18 VLBW infants who underwent PDA ligation from January 2002 to February 2008. Hemodynamic instability defined as unexplained cardiopulmonary dysfunction with increased dependency on mechanical ventilation and decreased blood pressure. Results: The mean gestational age and birth weight (BW) of all infants were $27^{+6}{\pm}1^{+6}$ weeks and 951${\pm}$245 g. Hemodynamic instability group (HI) included seven infants (39%) and hemodynamic stability group (HS) included 11 infants (61%). Compared to HS, HI had lower BW (1,033${\pm}$285 g vs. 821${\pm}$126 g, P=0.048) and weight on operation day (1,195${\pm}$404 g vs. 893${\pm}$151 g, P=0.042), longer hospital days (105${\pm}$29 vs. 141${\pm}$39, P=0.038), more severe bronchopulmonary dysplasia (BPD), (no/mild/moderate/severe, 2/5/2/2 vs. 0/1/2/4, P=0.038) and higher preoperative $FiO_2$ (0.29${\pm}$0.06 vs. 0.38${\pm}$0.09, P=0.02). One case of mortality due to sepsis, which was not associated with ligation, was observed among HS. Conclusion: The incidence of hemodynamic instability after PDA ligation in VLBW infants was 39%. Low BW, low weight on operation day and preoperative high $FiO_2$ might be risk factors of hemodynamic instability after PDA ligation in VLBW infants. The hemodynamic instability could increase the severity of BPD and hospital days.

• Journal of Chest Surgery
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• v.43 no.2
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• pp.150-155
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• 2010

Background: Endovenous laser treatment (EVLT) has recently been introduced as a less invasive technique for treating an incompetent small saphenous vein and many good results have been reported. The purpose of this study is to assess the efficacy and safety of EVLT combined with high ligation in patients with an incompetent small saphenous vein. Material and Method: The study included 60 patients (66 limbs) who were treated with EVLT combined with high ligation of an incompetent small saphenous vein between January 2006 and May 2009. The preoperative clinical findings, the postoperative results and the postoperative ultrasonography follow up results at 1 and 3 months were reviewed. Result: Postoperative complications were observed in 17 patients (15 limbs, 28.3%) and postoperative paresthesia occurred in 5 limbs (7.6%), but there was no deep vein thrombosis. Ultrasonography follow up at 3 month was performed in 93.9% of the limbs (62/66). The vein occlusion rate at 1 and 3 months were found to be 91.9% (57/62) and 90.3% (56/62), respectively. Conclusion: We performed EVLT combined with high ligation and ambulatory phlebectomy in patients with an incompetent small saphenous vein, and this all revealed relatively satisfactory results with a low complication rate, but it showed a relatively low cure rate even though we also performed EVLT combined with high ligation altogether. We need to determine whether EVLT combined with a high ligation procedure will improve the venous occlusion rate. We also need to investigate how we can minimize the occurrence of nerve injury.

• Journal of Veterinary Clinics
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• v.19 no.1
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• pp.95-99
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• 2002

A 6-month-old, intacted male dog was admitted to Seoul Animal Medical Center. The referring veterinarian suspected that the patient might have congenital cardiac problem. It was diagnosed with patent ductus arteriosus(PDA) based on the physical examination, auscultation, radiography, electrocardiography and ultrasonogrphy. After surgical ductus closure, there were improved clinical conditions through by alleviation of atrial fibrilation and left heart enlargement.

• Journal of Chest Surgery
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• v.43 no.2
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• pp.133-138
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• 2010

Background: Video assisted thoracic surgery has been widely accepted for the treatment of primary spontaneous pneumothorax. Material and Method: We retrospectively reviewed the medical records of 89 primary pneumothorax patients who had undergone thoracoscopic bleb ligation from February 2002 to June 2006, and we assessed the patients for recurrence. The mean follow-up period was 65 months. Result: Pneumothorax recurred in 7 patients (8%) during the follow-up period. Conclusion: Thoracoscpic bleb ligation might be an acceptable alternative technique for treating primary spontaneous pneumothorax.

• 대한예방의학회:학술대회논문집
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• 1995.10a
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• pp.67-68
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• 1995

• Journal of Chest Surgery
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• v.29 no.2
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• pp.153-156
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• 1996

Over a 3 year period, 10 premature infants with less than 37 weeks of gestational age underwent ductal ligation for patent ductus arteriosus. No patient died during operations which were done at a mean age of 30 days. One late death at 2 months after operation was not directly attributed to operative procedure. Follow-ups were done in 9 survived patients from 2 to 26 months. Results suggest that surgical ligation is a feasible and effective method for treating symptomatic premature infants with patent ductus arteriosus.

• Journal of Chest Surgery
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• v.36 no.11
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• pp.883-885
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• 2003

Traditional surgical management of chylothorax refractory to conservative treatment is thoracic duct ligation through a right open thoracotomy. A new surgical procedure of ligation of the thoracic duct via extrapleural approach is presented. Its advantages are less invasive, no need of a new drainage tube, and easier to expose the thoracic duct than the conventional transthoracic approach. We experienced a new surgical method in the treatment of the chylothorax and report it with literatures.