Background: ATS mechanical valve is a recently introduced pyrolytic carbon bileaflet prosthesis. This report is to evaluate the results of hemodynamic and anticoagulant therapy after ATS valve replacement. Material and Method: From May 1995 to October 1998, 53 patients received 65 ATS prosthesis; 38 Mitral(27-33 mm), 27 Aortic(19-25 mm). 2 CABGs and 5 Tricuspid annuloplasty were taken concomitantly. The follow up period was 769 patient-months(mean 16.2$\pm$10.0), varied from 1 month to 39 months with 92.5% follow up rate. All patients were evaluated with Doppler echocardiography, 7-14 days after operation. Result: NYHA functional class was improved significantly, from 2.6$\pm$0.8 preoperatively to 1.3$\pm$0.4 postoperatively. The average value of peak and mean transvalvular pressure gradients were 25.7$\pm$13.5 mmHg, 12.7$\pm$8.3 mmHg in aortic position. In the mitral position, the average values of peak and mean transvalvular pressure gradient and valve area were 5.9$\pm$2.5 mmHg, 3.1$\pm$0.8 mmHg and 2.9$\pm$0.5 $\textrm{cm}^2$, respectively. In the anticoagulant therapy, mean INR was 2.5$\pm$0.6 in mitral valve replacement and 1.9$\pm$0.5 in aortic valve replacement. There was no anticoagulant related complication. During that period, there were 3 hospital death(5.9%) and 1 late death(1.9%). Conclusion: The early clinical results of the ATS heart valve replacement is quite satisfactory, and low target INR reginmen is safe. And long term follow of hemodynamic characteristics is also necessary.
Radiotherapy result was analyzed in 23 children with retinoblastoma treated in Seoul National University Hospital from 1980 to 1987. Three ($17\%$) had bilateral tumor at diagnosis. Among 20 children with unilateral retinoblastoma 13 children got radiotherapy after enucleation, 2 were treated with radiotherapy alone, and 5 were delivered with radiotherapy after relapse. Of 15 non-recurrent unilateral tumors, there were 5 stage II children, 8 stage III, and 2 stage IV by staging system proposed by St. Jude Children's Research Hospital. Chemotherapy was combined when resection margin of the optic nerve was positive or when malignant cell was found in CSF. Of 12 children who completed radiotherapy, local or distant failure was not found but 2 cases of relapse at the contralateral retina were observed. Their 5 year survival rate was $82.2\%$. Another case of contralateral relapse was detected in children who was treated with radiotherapy alone. Thus overall frequency of the bilateral disease was $33\%$. Prognosis of recurrent tumors were so poor that no cases of CR was obtained and that 3 year survival rate was $20\%$. Two of 3 bilateral cases at diagnosis were in NED status. Complication were sunken orbit only. Result of radiotherapy was so good in early stage or small bulk tumor that treatment delay after diagnosis must not be allowed.
Hwang, Jae Ha;Park, Sun Hyung;Yoo, Sung In;Noh, Bok Kyun;Kim, Eui Sik;Kim, Kwang Seog;Lee, Sam Yong
Archives of Plastic Surgery
/
v.33
no.5
/
pp.669-671
/
2006
Purpose: Congenital insensitivity to pain with anhidrosis(CIPA) is a rare form of autosomal recessive peripheral sensory neuropathy. Patients with CIPA show loss of pain sensation, which leads to corneal ulcers and opacities, self-mutilation of the tongue and fingertips, as well as fractures with subsequent joint deformities and chronic osteomyelitis. The purpose of this report is to highlight the fact that pressure sores also are a potential complication of CIPA. Methods: This case report describes a patient presenting with pressure sores resulting from CIPA. A 5-year-old boy was referred to our department for the treatment of a $5{\times}5cm$ sacral pressure sore as a result of a hip spica cast applied for the treatment of a left hip joint dislocation. He had a history suggesting CIPA such as multiple bony fractures, mental retardation, recurrent hyperpyrexia, anhidrosis, and clubbing fingers due to oral mutilation. A microscopic examination of the sural nerve showed mainly large myelinated fibers, a few small myelinated fibers and an almost complete loss of unmyelinated fibers. After wound preparation for two weeks, the exposed bone was covered with two local advancement flaps. Results: Two weeks later, complete wound healing was achieved. A 16-month follow-up showed no recurrence. However, the patient presented with a new pressure sore on the left knee due to orthosis for the treatment of the left hip joint dislocation. Conclusion: The early diagnosis of CIPA and special care of pressure sores are important for preventing and treating pressure sores resulting from CIPA.
Video-assisted thoracic surgery(VATS) has been widely used in the treatment of spontaneous pneumothorax in spite of the absence of definitive data regarding the relative safety and long term results of this procedure. We reviewed 34 patients (group I) who underwent )8 video-assisted surgical procedures for spontaneous pneumothorax from June 1994 to December 1995 and compared the results of these patients with the results of another 14 patients (group ll) who underwent bullectomy through axillary Oho- racotomy during the same period. Average age, sex distribution, site and extent of pneumothorax, surgical indications, and complication rate showed no differences between the two groups. In group ll patients, th number and sites of bullae tend to be multiple compared to patients in group 1. The mean number of ends-GIA used for stapling of bullae was 2. 6 per patient with the range from 2 to 4 in group 1. The mean duration of chest tube drainage was not different between the two groups ().7 days and 3.9 days), but the mean time to discharge was significantly shorter in group I (5.6 days) than in group ll (8.9 days). Mean follow-up time was 12 and 11 months in each groups and ranged from 2 to 21 months. Pneumothorax recurred after three of 38 procedures in group I (7.9 %) with no recurrence in group ll. These data suggest that video-assisted thoracic surgery is a viable alternative to thoracotomy for the treatment of spontaneous pneumothorax with low morbidity and shorter hospital stay. However, it should be applied cautiously to patients with spontaneous pneumothorax because of the relatively high incidence of recurrence compared to axillary thoracotomy.
Lee, Ji Seong;Chee, Hyun Keun;Kim, Jun Seok;Song, Myong Gun;Park, Jae Bum;Shin, Je Kyoun
Journal of Chest Surgery
/
v.48
no.5
/
pp.328-334
/
2015
Background: There have been a number of studies on mitral valve replacement and repeated percutaneous mitral balloon valvotomy for mitral valve restenosis after percutaneous mitral balloon valvotomy. However, studies on mitral valve repair for these patients are rare. In this study, we analyzed postoperative outcomes of mitral valve repair for mitral valve restenosis after percutaneous mitral balloon valvotomy. Methods: In this study, we assessed 15 patients (mean age, $47.7{\pm}9.7years$; 11 female and 4 male) who underwent mitral valve repair between August 2008 and March 2013 for symptomatic mitral valve restenosis after percutaneous mitral balloon valvotomy. The mean interval between the initial percutaneous mitral balloon valvotomy and the mitral valve repair was $13.5{\pm}7years$. The mean preoperative Wilkins score was $9.4{\pm}2.6$. Results: The mean mitral valve area obtained using planimetry increased from $1.16{\pm}0.16cm^2$ to $1.62{\pm}0.34cm^2$ (p=0.0001). The mean pressure half time obtained using Doppler ultrasound decreased from $202.4{\pm}58.6ms$ to $152{\pm}50.2ms$ (p=0.0001). The mean pressure gradient obtained using Doppler ultrasound decreased from $9.4{\pm}4.0mmHg$ to $5.8{\pm}1.5mmHg$ (p=0.0021). There were no early or late deaths. Thromboembolic events or infective endocarditis did not occur. Reoperations such as mitral valve repair or mitral valve replacement were not performed during the follow-up period ($39{\pm}16months$). The 5-year event-free survival was 56.16% (95% confidence interval, 47.467-64.866). Conclusion: On the basis of these results, we could not conclude that mitral valve repair could be an alternative for patients with mitral valve restenosis after percutaneous balloon mitral valvotomy. However, some patients presented with results similar to those of mitral valve replacement. Further studies including more patients with long-term follow-up are necessary to determine the possibility of this application of mitral valve repair.
Journal of the Korea Academia-Industrial cooperation Society
/
v.19
no.2
/
pp.456-461
/
2018
Carotid artery stenting (CAS) has emerged as an alternative treatment for carotid stenosis in patients poorly suited for endarterectomy. Intracerebral hemorrhage following carotid revascularization (endarterectomy, angioplasty, artery stenting) is rare and thought to be related to reperfusion injury in most cases. Early experience suggests an increased incidence of hemorrhage following CAS as compared to endarterectomy. In this study, data were obtained through a case report on an 80-year-old male patient with cerebral infarction. The 80-year-old hypertensive man developed sudden monoparesis in the left arm. He underwent CAS for 90% stenosis of the left proximal internal carotid artery. Brain CT after procedure showed acute hematoma with left posterior cerebral artery territorial hemorrhage, including the upper thalamus with extended intraventricular hemorrhage (IVH). Since this hemorrhage occurred in vascular territory unlikely to have been supplied by the treated artery, this case suggests that the mechanism of intracerebral hemorrhage following CAS may in some cases be different from hyperperfusion hemorrhage classically described following endarterectomy.
Kim, Jeong Eun;Jung, Hee-Won;Gwak, Ho-Shin;Paek, Sun Ha;Kim, Dong Gyu;Choi, Kil Soo
Journal of Korean Neurosurgical Society
/
v.29
no.6
/
pp.754-762
/
2000
Objectives : The surgical results of 80 patients with growth hormone(GH)-producing pituitary adenoma were analyzed retrospectively to evaluate the clinical manifestations and to determine which preoperative factors significantly influenced the surgical outcome. Patients and Methods : The patients consisted of 39 men and 41 women and the age of patients at the time of initial operation ranged from 17 to 67 years(mean age, 40.5 years) Between January 1990 and June 1996, 77 patients underwent transsphenoidal surgery and 3 patients underwent craniotomy for GH-producing pituitary adenoma at our institution. Preoperative administration of octreotide was performed in 18 patients. Surgical control was defined as a postoperative serum basal level of GH less than 5ng/ml. A logistic regression model was used for univariate and multivariate analysis. Probability value of less than 0.05 was considered as statistically significant. Results : The most common presenting symptom was acromegaly, followed by headache, visual disturbance, and fatigability. Visual symptoms were present in 39% of the patients. Diabetes mellitus was associated in 24 patients and hypertension in 12. Preoperative mean basal level of GH was 93.2ng/ml(range 72-500ng/ml) which was closely related with tumor size(p<0.05). Grade II by Hardy's classification was the most common radiological type. Preoperative octreotide treatment significantly reduced the level of GH(p<0.05), but not enough to induce endocrinological remission. One patient died of cerebral infarction after craniotomy. The most common surgical complication was transient diabetes insipidus. The symptom of the earliest improvement after surgery was paresthesia and tightness of the hand and foot, followed by headache and easy fatigability. The preoperative visual symptom was improved in all patients. The patients who had hypertension or DM experienced alleviated symptoms in 67% and 92%, respectively. The overall rate of endocrinological remission was 44%. By multivariate logistic regression analysis, the size of tumor, extrasellar extension, and extent of removal were significant prognostic factors for endocrinologial remission. Conclusion : Early detection of a small tumor without extrasellar extension followed by a complete resection is highly recommended in order to achieve endocrinological cure of GH-producing pituitary adenomas.
Diabetes mellitus is a multifactorial disease. Particularly, diabetic nephropathy is a serious complication for diabetic patients, yet the precise mechanisms that underline the initial stage of diabetic renal inflammation remain unknown. However, oxidative stress induced by hyperglycemia in diabetes is implicated in diabetic renal disease. We hypothesized that dietary supplementation of antioxidants either VCE (0.5% VC + 0.5% VE) or Comb (0.5% VC + 0.5% VE + 2.5% N-acetylcysteine) improves acute diabetic renal inflammation through modulation of blood glucose levels and antioxidant and anti-inflammatory responses. Experimental animals (5.5 weeks old female ICR) used were treated with alloxan (180 mg/kg) once. When fasting blood glucose levels were higher than 250 mg/dL, mice were divided into 3 groups fed different levels of antioxidant supplementation, DM (diabetic mice fed AIN 93G purified rodent diet); VCE (diabetic mice fed 0.5% vitamin C and 0.5% vitamin E supplemented diet); Comb (diabetic mice fed 0.5% vitamin C, 0.5% vitamin E and 2.5% N-acetylcysteine supplemented diet), for 10 days and then sacrificed. Body weights were measured once a week and blood glucose levels were monitored twice a week. Lipid peroxidation products, thiobarbituric acid reacting substances were measured in kidney. NF-${\kappa}B$ activation was indirectly demonstrated by pI${\kappa}B$-${\alpna}$ and expressions of selective inflammatory and oxidative stress markers including antioxidant enzymes were also determined. Dietary antioxidant supplementation improved levels of blood glucose as well as kidney lipid peroxi-dation. Dietary antioxidant supplementation improved NF-${\kappa}B$ activation and protein expression of HO-1, but not mRNA expression levels in diabetic mice fed Comb diet. In contrast, the mRNA and protein expression of CuZnSOD was decreased in diabetic mice fed Comb diet. However, antioxidant supplementation did not improve mRNA and protein expressions of IL-$1{\beta}$ and MnSOD in diabetic mice. These findings demonstrate that acute diabetic renal inflammation was associated with altered inflammatory and antioxidant responses and suggest that antioxidant cocktail supplementation may have beneficial effects on early stage of diabetic nephropathy through modulation of blood glucose levels and antioxidant enzyme expressions.
Kim, Se-Eun;Ko, A-Ra;Bae, Chun-Sik;Park, Soo-Hyun;Han, Ho-Jae;Shim, Kyung-Mi;Kang, Seong-Soo
Journal of Veterinary Clinics
/
v.28
no.1
/
pp.52-56
/
2011
Acute renal injury induced by ischemia is a major cause of high morbidity and mortality in hospitalized patients and a common complication in hospitalized patients. Thus, the work with acute renal failure and renal ischemia has been studied for many years. Although serum creatinine concentration that is widely used as an index of renal function performs fairly well for estimating kidney function in patients with stable chronic kidney disease, it performs poorly in the setting of acute disease. Thus, an ideal biomarker for acute kidney injury would help clinicians and scientists diagnose the most common form of acute kidney injury in hospitalized patients, acute tubular necrosis, early and accurately, and may aid to risk-stratify patients with acute kidney injury by predicting the need for renal replacement therapy, the duration of acute kidney injury, the length of stay and mortality. In this study, renal ischemia and reperfusion were performed by clapming and un-clamping right renal artery in miniature pigs. Plasma blood urea nitrogen (BUN) and creatinine were examined at pre- clamping, after-clamping at 0, 1 and 3 hours. And we searched initial indicators in these samples. Also, renal tissue was collected and searched the initial indicator by PCR and western blotting. As a result, hypoxia inducible factor $1{\alpha}$ ($HIF1{\alpha}$), nuclear factor kappa-B ($NF{\kappa}B$), $I{\kappa}B$, erythropoietin (EPO), erythropoietin receptor (EPOR), angiopoietin-1 and vascular endothelial growth factor (VEGF) were showed significant changes among the renal protein. $HIF1{\alpha}$, EPO, and EPOR were showed significant changes among the renal gene. Thus, these markers will be used as initial diagnosis of acute renal failure.
Sin, Yun-Cheol;Lee, Jeong-Ryeol;Kim, Yong-Jin;No, Jun-Ryang
Journal of Chest Surgery
/
v.29
no.3
/
pp.285-291
/
1996
We have reviewed 157 cases of coarctation of aorta in the age of infancy and children from March 1973 to december 1994. Patients were 9) males and 64 females, and their age ranged from one month to fifteen years (23.8 $\pm$ 41.6months) with 113 infant cases. In the infantile age, congestive heart failure was the most common chief complaint (781113), and above that age, asymptom was most common (15/44). Isolated coarctation was present in 31 patients, and 9 patients had additional atrial septal defect (group I), 73 patients had associated ventricular septal defect (group II), and 44 patients had associated complex intracardiac lesions(group III). Aortic arch hypoplasia was present in 17 patients. , The operations perf'ormed were subclavian flap angioplasty in 71 patients, resection and anastomosis in 32 patients, patch aortoplasty in 26 patients, resd extended end-!o-end anastomosis in 27 patients, and direct angioplasty with resection of web in 1 patient. The early mortality was 17.2% (27/157) and re-coarctation rate was 18.0% (281157). The most common complication was respiratory problem in infants and postoperative hypertension in children.
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