1.Correction: Need Assessment for Smartphone-Based Cardiac Telerehabilitation.
Ji Su KIM ; Doeun YUN ; Hyun Joo KIM ; Ho Youl RYU ; Jaewon OH ; Seok Min KANG
Healthcare Informatics Research 2019;25(1):57-57
The final degrees of education for the third and fourth authors were mutually misplaced.
2.Sinus arrest during valsalva maneuver after pneumonectomy: A case report.
Jae Gyok SONG ; Kang RYU ; Seok Kon KIM
Korean Journal of Anesthesiology 2008;55(1):114-118
We report a case of cardiac arrest in a 71 year old male during the Valsalva maneuver that had been performed immediately after completing a pneumonectomy. The patient had a subclinical atrial septal defect (1.08 cm sized) and he previously undergone a left upper lobectomy of the lung without complications 11 months earlier. He underwent a left completion pneumonectomy due to recurrent lung cancer. After surgery a Valsalva maneuver was performed with 35 cmH2O to relocate the mediastinum. During this procedure, the patient experienced a cardiac arrest and was resuscitated with difficulty. It is believed that the cardiac arrest was due to pulmonary hypertension, right ventricular failure and right to left shunt caused by several factors, such as the pneumonectomy, subclinical atrial septal defect (1.08 cm sized), and Valsalva maneuver. In addition, the hypovolemia caused by fluid restriction and the epidural injection of local anesthetics might have contributed to this incident. Although it is a rare complication, it is suggested that subclinical ASD can cause severe hypoxemia, dyspnea even cardiac arrest after pneumonectomy. In order to avoid these complications, ASD should be treated with percutaneous closure or surgical intervention. If these are not possible, care must be taken when anesthetizing the patient, and anything that can increase the pulmonary vascular resistance and right to left shunt should be avoided.
Anesthetics, Local
;
Anoxia
;
Dyspnea
;
Heart Arrest
;
Heart Septal Defects, Atrial
;
Humans
;
Hypertension, Pulmonary
;
Hypovolemia
;
Injections, Epidural
;
Lung
;
Lung Neoplasms
;
Male
;
Mediastinum
;
Pneumonectomy
;
Valsalva Maneuver
;
Vascular Resistance
3.Clinical Outcome of Therasonic LTS and SDS-5000 for the Treatment of Urinary Stones.
Seok Chan KANG ; Ji Kan RYU ; Sang Min YOON
Korean Journal of Urology 2005;46(3):275-280
PURPOSE: We compared the clinical efficacy of Therasonic LTS (piezoelectric type) with that of SDS-5000 (spark gap type) for the management of urinary stones. MATERIALS AND METHODS: We evaluated 516 patients treated with Therasonic LTS, between June 1996 and April 2001, and 314 treated with SDS-5000 between September 2001 and January 2003. We compared the average success rates and shock wave sessions according to the stone sizes and locations, and also verified the complications related to the therapies. RESULTS: The total success rates of Therasonic LTS and SDS-5000 were similar (92.6 and 94.6%, respectively), with no difference according to stone location and size. However, the average shock wave sessions were significantly lower in the group treated with SDS-5000 (2.5 1.8 sessions) compared to the group treated with Therasonic LTS (3.1 1.9 sessions) (p<0.05). The cumulative success rates were 64.3 and 77.1%, respectively, at the completion of session 3, and 82.2 and 88.2%, respectively, at the completion of session 5. The complication rates associated with the therapies were 8.9 and 6.9%, respectively, consisting of pain, gross hematuria, steinstrasse and acute pyelonephritis, most of which were successfully controlled by conservative treatment. CONCLUSIONS: SDS-5000 lithotripsy is more efficient than Therasonic LTS in terms of shock wave sessions.
Calculi
;
Hematuria
;
Humans
;
Lithotripsy
;
Pyelonephritis
;
Shock
;
Urinary Calculi*
;
Urinary Tract
4.Factors Affecting on Treatment of Hyponatremia in Hyponatremic Patients.
Seok Woo KANG ; Seong Kyu YANG ; Jun Ho RYU ; Sang Woong HAN ; Kyung Hwan MIN ; Ho Jung KIM
Korean Journal of Nephrology 2000;19(3):421-428
Hyponatremia, well known as a serious medical condition, is the most frequent electrolyte disorder in clinical medicine. The aim of this study is to bring to readers affecting factors in hyponatremia treatment and to suggest effective treatment guideline. We studied general characteristics, associated serum potassium change, relationship of sodium concentration in urine, and affecting factors on serum sodium correction in 76 hyponatremic patients who had admitted Hanyang University Kuri Hospital. These 73 hyponatremic patients were divided into 10 groups according to cause and treatment by retrospective analysis(1 group : G-I origin, 2 group : CRF, 3 group : CHF, 4 group: LC, 5 group : adrenal origin, 6 group : diuretics use, 7 group : CHF with di- uretics use, 8 group : LC with diuretics use, 9 group : polydypsia, 10 group : SIADH). Serum sodium were 124.2+/-6.9mEq/L in initial diagnosis, 125.6 +/-7.7mEq/L after 48 hour, and 129.8+/-6.3mEq/L in final evaluation. Among these hyponatremic patients, thirty patients' (41.1%) sodium correction rate were below 0.5mEq/L/hr during initial 48 hour and fifteen patients(20.5%) were corrected above 135mEq/l in serum sodium Initial serum potassium was average 4,07mEq/L, and 15 patients in 73 hyponatremic patients were hypokalemic feature. Eight patients of 15 hypokalemic patients were corrected to normal potassium level and in addition, four patients of 8 corrected patients were corrected to normal sodium level above 135mEq/L. The disease frequency were highest in GI origin (31.5%), followed by SIADH(20.5%) and LC(12.3%). In our study, hyponatremia correction was not related to patient sex, age, and initial serum sodium concentration. In conclusion, Hyponatremia prognosis was not related to initial serum sodium concentration and corection rate, but related to treatment of underlying disease. And hypokalemia acompanied by hyponetremia was corrected after correction of hyponatremia.
Clinical Medicine
;
Diagnosis
;
Diuretics
;
Humans
;
Hypokalemia
;
Hyponatremia*
;
Potassium
;
Prognosis
;
Retrospective Studies
;
Sodium
5.The Pathophysiologic Difference Between Idiopathic and Self-induced Edema on Chronic Furosemide Abuse.
Sang Woong HAN ; Kyoung Hwan MIN ; Seok Woo KANG ; Jun Ho RYU ; Jung Don MUN ; Ho Jung KIM
Korean Journal of Nephrology 2000;19(1):123-131
Patients suffering from idiopathic or self-induced edema are uniformly characterized by chronic use of furosemide, which leads to vicious cycle of edema. Among chronic furosemide users who don't have any other specific edema forming diseases, 9 patients from the outpatient clinic(OC) and 6 patients examined at the emergency room(ER) used it mainly for weight reduction and for cyclical edema, respectively. All of the ER group patients were presented with severe hypokalemia(2.04+/-0.2mEq/L; range 1.3 to 2.7 mEq/L) and alkalosis(748+/-0.01; range 7.44 to 7.51) but none from the OC group showed such results. Other baseline parameters including Plasma renin activity(PRA) and aldosterone level on recumbency, and FEn(2)were similar in both groups. In contrast, daily working hours(6.1+/-0.5 vs 10+/-0.6hr, p<0.01), average body weight gain between AM and PM(0.4+/-0.1 vs 0.9+/-0.lkg, p<0.01), peak weight gain interval(9+/-0.8 vs 5+/-0.1day, p<0.05), PRA(7.6+/-1.5 vs 23.5+/-7.2ng/ml/h, p<0.05) and aldosterone level(22.1+/-4.2 vs 64.8+/-10.4 ng/dl, p<0.01) on ambulation, and FEk. on normokalemia(ll+/-2A vs 36+/-7.7%, p<0.01) were statistically different between the two groups. In comparison to the OC group, both the amout of urine(617+/-39 vs 358+/-26ml, p<0.01) and the percent change of PRA(-14+/-4 vs -3+/-2%, p<0.05) and al-dosterone level(-17+/-5 vs -4+/-3%, p<0.05) after saline loading(lL over 1hr, IV) following ambulation were smaller in the Elt group. Moat of the ER group patients(5/6) required aldosterone antagonist (spironolactone) added to K+ supplement, but all of the OC group patients were managed to maintain an edema-free status with conservative treatment. In conclusion, patients with idiopathic edema seem to have more fluid transudation out of intravascular space during orthostasis with a prominent degree of deranged renin-aldosterone axis and K+ metabolism than those with self-induced edema.
Aldosterone
;
Axis, Cervical Vertebra
;
Body Weight
;
Dizziness
;
Edema*
;
Emergencies
;
Furosemide*
;
Humans
;
Metabolism
;
Outpatients
;
Plasma
;
Renin
;
Walking
;
Weight Gain
;
Weight Loss
6.Usefulness of Manual Reduction in Patients with Acute Scrotum.
Seok Hyun CHUNG ; Kyung Joong KANG ; Dong Soo RYU
Korean Journal of Urology 2005;46(7):725-729
PURPOSE: We assessed the usefulness of manual reduction in patients with an acute scrotum. MATERIALS AND METHODS: We retrospectively analyzed the data of 61 consecutive males who had undergone surgical exploration for an impression of testicular torsion, focusing on the incidence, duration of symptoms, direction of testicular torsion and results of manual reduction. Of the 61 explorations, there were 46 (75.4%) and 15 (24.6%) cases of testicular torsion and torsion of a testicular appendage, respectively. RESULTS: Of the 46 testicular torsions, the symptoms were localized to the left side in 37 and to the right side in 9. While the mean symptom duration of the 31 in the orchiectomy group (89 hours) was significantly longer than that in the 15 salvaged testes (10 hours, p=0.003), the mean degree of rotation between the two groups was not significant (p=0.196). Information on the direction of testicular rotation was available in 44 cases, with medial rotation having occurred in 31 (70.5%) and lateral rotation in 13 cases. The clinical symptoms were improved in 4 of the 20 patients in who manual reduction was attempted; residual torsion was identified in 2 patients. CONCLUSIONS: Manual detorsion, the fastest way to relieve testicular ischemia, should be performed at an early offstage following presentation. However, in attempting the manual reduction, the urologist should consider the possibility that a quarter of patients with an acute scrotum do not have testicular torsion, with 30% of testicular torsions occurring in the lateral direction. Surgical exploration remains necessary to confirm the causes of an acute scrotum and to correct any residual torsion.
Humans
;
Incidence
;
Ischemia
;
Male
;
Orchiectomy
;
Retrospective Studies
;
Scrotum*
;
Spermatic Cord Torsion
;
Testis
7.The prognostic value of squamous cell carcinoma antigen for predicting tumor recurrence in cervical squamous cell carcinoma patients.
Hyun Kyung RYU ; Ji Sun BAEK ; Woo Dae KANG ; Seok Mo KIM
Obstetrics & Gynecology Science 2015;58(5):368-376
OBJECTIVE: The aim of this study was to evaluate the prognostic value of squamous cell carcinoma antigen (SCC-Ag) and the optimal cut-off value for predicting recurrence in cervical squamous cell carcinoma patients with complete remission after primary treatment. METHODS: We reviewed the records of 783 cervical squamous cell cancer patients who underwent primary therapy and showed complete remission at our institution between January 2000 and April 2014. A receiver operating characteristic curve was used to determine the optimal SCC-Ag threshold to predict recurrence. Cox regression model for disease free survival was used to assess differences in outcome. RESULTS: The median follow-up period was 41.2 months, and 154 patients (19.7%) had recurrent disease. The median pretreatment and posttreatment SCC-Ag level was 2.6 ng/mL (range, 0.1 to 532.0 ng/mL) and 0.7 ng/mL (range, 0.0 to 46.8 ng/mL), respectively. Both pretreatment and posttreatment SCC-Ag levels were higher in the recurrence group (P=0.017 and P=0.039). Optimal cut-off value of pretreatment and posttreatment SCC-Ag for predicting recurrence was 1.86 ng/mL (area under the curve, 0.663; P=0.000), and 0.9 ng/mL (area under the curve, 0.581; P=0.002), respectively. In the multivariate Cox regression model, pretreatment SCC-Ag >1.86 ng/mL (odds ratio, 2.11; 95% confidence interval, 1.38 to 3.22; P=0.001) and posttreatment SCC-Ag >0.9 ng/mL (odds ratio, 1.64; 95% confidence interval, 1.18 to 2.28; P=0.003) were significantly associated with poor disease free survival. CONCLUSION: Patients with pretreatment SCC-Ag >1.86 ng/mL or posttreatment SCC-Ag >0.9 ng/mL should be considered at high risk for cancer recurrence after complete remission, and therefore, closer surveillance is needed.
Carcinoma, Squamous Cell*
;
Disease-Free Survival
;
Follow-Up Studies
;
Humans
;
Neoplasms, Squamous Cell
;
Recurrence*
;
ROC Curve
8.A case of renal arterial embolization using 99% ethanol and lipiodol mixture for autosomal dominant polycystic kidney disease in a hemodialysis patient.
Taeik CHANG ; Dong Ryeol RYU ; Beom Seok KIM ; Sejin JUNG ; Chi Young SHIM ; Ea Wha KANG ; Sug Kyun SHIN
Korean Journal of Medicine 2004;67(Suppl 3):S776-S780
Autosomal dominant polycystic kidney disease (ADPKD) is a common genetic disorder characterized by innumerable bilateral renal cysts. It has an prevalence rate of one in 200~1,000 individuals and is a relatively common cause of renal failure. As renal function deteriorates, overall renal size usually diminish in patients with chronic renal failure. However, renal size of patients with ADPKD usually continues to increase, even after the initiation of dialysis therapy, because numerous cysts replace renal mass. Attempted methods to reduce the size of enlarged kidneys have included needle aspiration and sclerotherapy, cyst decompression surgery, laparoscopic and surgical nephrectomy. The outcome of these therapy frequently has been suboptimal, and there is a need to develop a more effective therapy. We report a case of renal arterial embolization using 99% ethanol and lipiodol mixture for ADPKD in a hemodialysis pathient, which has not been previously reported.
Decompression
;
Dialysis
;
Ethanol*
;
Ethiodized Oil*
;
Humans
;
Kidney
;
Kidney Failure, Chronic
;
Laparoscopy
;
Needles
;
Nephrectomy
;
Polycystic Kidney, Autosomal Dominant*
;
Prevalence
;
Renal Dialysis*
;
Renal Insufficiency
;
Sclerotherapy
9.Long Percutaneous Stent Insertion in Pancreatic Duct and Monitoring of Pancreaticojejunostomy Site Leakage in Periampullary Cancer Patients.
Hyeon Chul KANG ; Seok Yong RYU ; Hong Yong KIM ; Sehwan HAN ; Myung Soo LEE ; Hong Ju KIM ; Young Duck KIM
Journal of the Korean Surgical Society 1999;56(3):420-426
BACKGROUND: Periampullary cancer is a relatively common malignancy, and its incidence is increasing. A pancreaticoduodenectomy is the procedure of choice in patients with periampullary cancer. However, leakage of the pancreaticojejunal anastomosis has been a major complication after a pancreaticoduodenectomy, with a frequently reported incidence of 5 percent to 25 percent. The ideal management of the pancreatic stump has not yet been determined. Thus we tried to find a safe and effective pancreatic stump management technique and to monitor the security of the pancreatic stump anastomosis by using the body fluid amylase level. PATIENTS AND METHODS: Forty six (46) consecutive patients who had undergone a pancreaticoduodenectomy, between January 1990 and January 1998, were evaluated retrospectively. Before June 1997, we did 36 pancreaticojejunostomies without long stent insertion into the pancreatic duct (group 2). After that, we did 10 P-Jstomies with long stent insertion (group 1). A long silicone stent was used for intubation of the anastomosis. Also the amount of pancreatic juice drainage from the long pancreatic duct tube was checked daily. We placed two Penrose drains and one Jackson-Pratt drain near the anastomosis. Patients were monitored for clinical evidence of a pancreatic fistula by evaluation of the amylase concentration in serum and the peritoneal drainage at postoperative day 7. The normal range of body fluid amylase was defined to be within five times of the normal serum amylase level. Cholangiography, which was obtained through a T-tube or a percutaneous transhepatic catheter, was performed on postoperative day 7 and was used to assess to leakage from or the obstruction at any of the three reconstructive anastomoses. RESULTS: In group 1, there was no leakage from the P-Jstomy site. The daily mean pancreatic juice amount and body fluid amylase level were 76.6 ml/day (range, 0.4-137.4 ml/day) and 147.4 U/L (range,44-323 U/L). In group 2, there were 4 cases of leakage at the P-Jstomy site (11.1%). CONCLUSION: An external long pancreatic duct stent insertion is an effective and safe method for management of a pancreatic remnant. We could check the amount of the daily pancreatic juice precisely. Effective decompression of the P-Jstomy was achieved by long stent insertion. We could monitor the security of the pancreatic stump anastomosis by the body fluid amylase level. We suggest that our method, which monitors the body fluid amylase level, is effective in early detection and treatment of P-Jstomy site leakage. The effort to find the best method for management of the pancreatic remnant should be continued.
Amylases
;
Body Fluids
;
Catheters
;
Cholangiography
;
Decompression
;
Drainage
;
Humans
;
Incidence
;
Intubation
;
Pancreatic Ducts*
;
Pancreatic Fistula
;
Pancreatic Juice
;
Pancreaticoduodenectomy
;
Pancreaticojejunostomy*
;
Reference Values
;
Retrospective Studies
;
Silicones
;
Stents*
10.A Case of Pfeiffer Syndrome with Hydrocephalus and Multiple Congenital Anomalies.
Ki Wook YUN ; Kang Won RHEE ; In Seok LIM ; Eung Sang CHOI ; Byung Hoon RYU
Journal of the Korean Society of Neonatology 2005;12(1):87-92
Pfeiffer syndrome is one of a rare form of craniosynostosis syndrome, showing variable degree of craniosynostosis, midface hypoplasia, broad thumbs and toes and syndactyly. This is transmitted in autosomal dominant pattern and known to be related to mutations in FGFR (Fibroblast Growth Factor Receptor) 1 or FGFR 2. We experience a case of newborn Pfeiffer syndrome type 3 who had multiple facial anomalies, thumbs and great toes anomalies, ankylosis of radius and ulnar and hydrocephalus.
Acrocephalosyndactylia*
;
Ankylosis
;
Craniosynostoses
;
Humans
;
Hydrocephalus*
;
Infant, Newborn
;
Radius
;
Syndactyly
;
Thumb
;
Toes