1.Correlation of preoperative pulmonary function testing with pulmonary complication in patients after pneumonectomy.
Byung Woo BAE ; Hwang Kiw CHUNG
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(8):620-626
No abstract available.
Humans
;
Pneumonectomy*
;
Respiratory Function Tests*
2.Surgical Complications and Its Management in Intracranial Aneurysm.
Journal of Korean Neurosurgical Society 2000;29(8):1113-1120
No abstract available.
Intracranial Aneurysm*
3.Epidermolysis Bullosa Acquisita: A Complete Remissions versus Patients with Long-term Persistent Activities.
Dong Kyu HWANG ; Chang Woo LEE
Korean Journal of Dermatology 1999;37(6):715-718
BACKGROUND: In epidermolysis bullosa acquisita, it has been recognized that there exists heterogeneity in the clinical and serologic/immunopathologic features. OBJECTIVE: We examined patients with epidermolysis bullosa acquisita to see if there were any associated clinical and serological features which may predict disease activity or prognosis in the disease. METHODS: Clinical and some serologic features were compared. between 2 groups of patients with epidermolysis bullosa acquisita; one with complete remission of the symptoms and signs of the disease for more than 2 years and the other group with persistent disease activities of longer than 5 years.
Epidermolysis Bullosa Acquisita*
;
Epidermolysis Bullosa*
;
Humans
;
Population Characteristics
;
Prognosis
4.The PCA cementless total hip arthroplasty in patients under age 40.
Sung Kwan HWANG ; Woo Young YI
The Journal of the Korean Orthopaedic Association 1993;28(7):2360-2368
No abstract available.
Arthroplasty, Replacement, Hip*
;
Humans
;
Passive Cutaneous Anaphylaxis*
5.Studies on Microscopic Features and Pathogensis of Idiopathic Ureteropelvic Junction Stricture.
Hyon Woo HWANG ; Young Nam WOO
Korean Journal of Urology 1987;28(6):755-762
Idiopathic ureteropelvic junction stricture is not an uncommon disorder with resultant hydronephrosis of affecting kidney, and most frequently encountered in infant and children. Multiple causes of stricture have been identified. Abnormal organization of smooth muscle bundles at the ureteropelvic junction has been reported, and electron microscopy has demonstrated excessive collagen deposition within the intramural stroma. However, the exact cause of obstruction of UPJ stricture is uncertain. We reviewed 23 cases with idiopathic hydronephrosis underwent dismembered pyeloplasty. Examination of strictured segment with light the normal interwoven pattern, were arranged into an abundant outer circular and an inner longitudinal layer in 21 of 23 cases. But muscle thickness was not changed, and collagen was normal in both amount and arrangement. This results suggested that the abnormal muscle arrangement at the ureteropelvic junction might be the cause of the idiopathic stricture.
Child
;
Collagen
;
Constriction, Pathologic*
;
Humans
;
Hydronephrosis
;
Infant
;
Kidney
;
Microscopy, Electron
;
Muscle, Smooth
6.The Effects of Acute Variations in Plasma pH and Pco2 on Renal Bicarbonate Reabsorption in the Dog.
Hwang CHOI ; Kun Weon CHOO ; Woo Gyeum KIM
Korean Journal of Urology 1976;17(2):65-75
This study was aimed to comprehend the pattern of renal response in bicarbonate reabsorption during various alterations in acid-base equilibrium in twelve dogs. In metabolic acidosis induced by infusion of hydrochloric acid, as the plasma bicarbonate and filtered load of bicarbonate decreased eminently, urinary excretion of bicarbonate was found to be negligible. which was attributable to almost complete reabsorption via the hydration of CO2. In metabolic alkalosis induced by infusion of sodium bicarbonate, along with an increment of plasma concentration of bicarbonate, all filtered bicarbonate was reabsorbed, with negligible amount of excretion until the plasma level attains the renal bicarbonate threshold. During the respiratory acidosis and alkalosis with higher or lower arterial Pco2, the bicarbonate reabsorption varied linearly with plasma Pco2. The linear relationship indicated that the hydration of CO, was an important source of hydrogen ion for the reabsorption of bicarbonate. In this regards, however, in metabolic alkalosis the renal bicarbonate threshold was found to be much higher than that of respiratory acidosis. The characteristics of renal bicarbonate reabsorption, during the mixed acid-base disturbances of metabolic and respiratory origin with no considerable alteration of plasma pH, induced by hydrochloric acid infusion with hyperventilation or sodium bicarbonate infusion with CO2 inhalation, were quite similar to those in metabolic acidosis and alkalosis caused by simple hydrochloric acid or sodium bicarbonate infusion, respectively.
Acid-Base Equilibrium
;
Acidosis
;
Acidosis, Respiratory
;
Alkalosis
;
Animals
;
Dogs*
;
Hydrochloric Acid
;
Hydrogen-Ion Concentration*
;
Hyperventilation
;
Inhalation
;
Plasma*
;
Protons
;
Sodium Bicarbonate
7.Clinical and histopathologic findings of pathergy test sites in patients with Behcet's disease.
Won Woo LEE ; Kae Yong HWANG ; Duck Ha KIM
Korean Journal of Dermatology 1992;30(2):145-154
Through the clinicopathologic study of pathergy test sites of 16 patients with Behrets disease in the active or inactive stage, the following results were obtained; 1. In the active stage, six of 16 patients (37.5%) showed positive reactions in clinical pathergy tests, which are much higher than that in the inactive stage when only one patient showed a positive reaction. The severity of the ciniral pathergy reaction was directly related to the activity of the disease. 2. The characteristic histopathologic finding in the active stag was a dermal inflammatory cellular infiltration composed mainly of polymorphonuclear lukocytes and of lymphomononuclear cells accompanied by leukoctocylasia. Two of 16 patients showed true leukocytoclastic vasculitis. 3. Although the type of disease and the reactivity of the clinical pathergy test were related in terms of the severity of the histopathologic findings, there were some notible histopathologic changes even in the cases with negative clinical pathergy reactions. We concluded that the histopathologic findings of the pathergy test sites were more reliable for the diagnosis of Behcet's disease than the clinical findinigs.
Diagnosis
;
Humans
;
Vasculitis
9.Aspiration Thromboembolectomy in the Management of Acute Coronary Occlusion during Pertaneous Transluminal Coronary Angioplasty.
Young Youp KOH ; Woo Gyu KIM ; Hweung Kon HWANG
Korean Circulation Journal 1998;28(11):1905-1909
Percutaneous transluminal coronary angioplasty (PTCA) is often used in the management of coronary artery disease and the advances in equipment, technichal skill and acquisition of operator experiences have improved initial success rates and reduced the frequency of complications. However, acute coronary occlusion is the most common and serious complication related to angioplasty and its several potential mechanisms are intracoronary thrombus, coronary artery spasm and coronary artery dissection. Accordingly,heparinization, intracoronary thrombolysis, re-PTCA, stent implantation and emergency coronary artery bypass grafting have been previously used for reopening of an occluded coronary artery during angioplasty. In this report we describe our experience in the management of acute coronary occlusion of left anterior descending artery caused by dislodgement of thrombotic material during PTCA by means of aspiration thromboembolectomy instead of medical therapy,re-PTCA and stent implantation.
Angioplasty*
;
Angioplasty, Balloon, Coronary
;
Arteries
;
Coronary Artery Bypass
;
Coronary Artery Disease
;
Coronary Occlusion*
;
Coronary Vessels
;
Emergencies
;
Spasm
;
Stents
;
Thrombosis
10.A clinical study of the congenital umbilical anomalies.
Jin Woo LEE ; Jeong HONG ; Eui Ho HWANG
Journal of the Korean Surgical Society 1991;40(1):88-93
No abstract available.