1.Clinical Findings That Differentiate Co-Occurrence of Hyperacusis and Tinnitus from Tinnitus Alone
Seung-Ho SHIN ; Sung Wan BYUN ; Zoo Young LEE ; Min-Jee KIM ; Eun Hye KIM ; Ho Yun LEE
The Korean Journal of Gastroenterology 2022;63(11):1035-1042
Purpose:
We aimed to assess the characteristics of patients with concurrent tinnitus and hyperacusis, determine the best audiological criteria for predicting hyperacusis, and confirm whether objective evidence of changes in the brain exists.
Materials and Methods:
The medical records of patients with tinnitus who visited the hospital between March 2020 and December 2021 were reviewed. Data on accompanying hyperacusis, audiological profiles, and questionnaires including the Tinnitus Handicap Inventory (THI), Beck Depression Inventory, and numerical rating scale were analyzed. Resting-state quantitative electroencephalography (qEEG) using power spectral density (PSD) and event-related spectral perturbation (ERSP) were performed to objectively quantify changes in the brain.
Results:
A total of 194 patients were analyzed. Among them, 51 (26.3%) reported combined subjective hyperacusis with tinnitus.However, the proportions widely varied from 7.4% to 68.4% based on three audiological criteria for assessment. A higher score on the THI questionnaire was independently associated with the co-occurrence of tinnitus and hyperacusis. Fair agreement was observed between subjective hyperacusis and the audiological criterion based on a loudness discomfort level (LDL) of ≤90 dB at two or more frequencies for the diagnosis of hyperacusis. An increased beta-PSD and decreased levels of gamma-PSD, all-ERSP, and delta-ERSP were observed in patients with hyperacusis (p<0.05).
Conclusion
Patients with co-occurring tinnitus and hyperacusis had more severe tinnitus distress. An LDL of ≤90 dB at two or more frequencies may be applicable to predict accompanying hyperacusis in subjects with tinnitus, and qEEG also provides more objective information.
2.Clinical Findings That Differentiate Co-Occurrence of Hyperacusis and Tinnitus from Tinnitus Alone
Seung-Ho SHIN ; Sung Wan BYUN ; Zoo Young LEE ; Min-Jee KIM ; Eun Hye KIM ; Ho Yun LEE
Yonsei Medical Journal 2022;63(11):1035-1042
Purpose:
We aimed to assess the characteristics of patients with concurrent tinnitus and hyperacusis, determine the best audiological criteria for predicting hyperacusis, and confirm whether objective evidence of changes in the brain exists.
Materials and Methods:
The medical records of patients with tinnitus who visited the hospital between March 2020 and December 2021 were reviewed. Data on accompanying hyperacusis, audiological profiles, and questionnaires including the Tinnitus Handicap Inventory (THI), Beck Depression Inventory, and numerical rating scale were analyzed. Resting-state quantitative electroencephalography (qEEG) using power spectral density (PSD) and event-related spectral perturbation (ERSP) were performed to objectively quantify changes in the brain.
Results:
A total of 194 patients were analyzed. Among them, 51 (26.3%) reported combined subjective hyperacusis with tinnitus. However, the proportions widely varied from 7.4% to 68.4% based on three audiological criteria for assessment. A higher score on the THI questionnaire was independently associated with the co-occurrence of tinnitus and hyperacusis. Fair agreement was observed between subjective hyperacusis and the audiological criterion based on a loudness discomfort level (LDL) of ≤90 dB at two or more frequencies for the diagnosis of hyperacusis. An increased beta-PSD and decreased levels of gamma-PSD, all-ERSP, and delta-ERSP were observed in patients with hyperacusis (p<0.05).
Conclusion
Patients with co-occurring tinnitus and hyperacusis had more severe tinnitus distress. An LDL of ≤90 dB at two or more frequencies may be applicable to predict accompanying hyperacusis in subjects with tinnitus, and qEEG also provides more objective information.
3.Efficacy of an Alpha-Blocker for the Treatment of Nonneurogenic Voiding Dysfunction in Women: An 8-Week, Randomized, Double-Blind, Placebo-Controlled Trial.
Young Suk LEE ; Kyu Sung LEE ; Myung Soo CHOO ; Joon Chul KIM ; Jeong Gu LEE ; Ju Tae SEO ; Jeong Zoo LEE ; Ji Youl LEE ; Seung June OH ; Yong Gil NA
International Neurourology Journal 2018;22(1):30-40
PURPOSE: To evaluate the efficacy of an alpha-1 adrenergic receptor (α1-AR) blocker for the treatment of female voiding dysfunction (FVD) through a pressure-flow study. METHODS: This was a randomized, double-blind, placebo-controlled trial. Women aged ≥18 years with voiding symptoms, as defined by an American Urological Association symptom score (AUA-SS) ≥15 and a maximum flow rate (Qmax) < 15 mL/sec with a voided volume of >100 mL and/or a postvoid residual (PVR) volume >150 mL, were randomly allocated to either the alfuzosin or placebo group. After 8 weeks of treatment, changes in the AUA-SS, Bristol female lower urinary tract symptoms (BFLUTS) questionnaire, Qmax/PVR, and voiding diary were compared between groups. Patients’ satisfaction with the treatment was compared. Patients were categorized into 3 groups according to the Blaivas-Groutz bladder outlet obstruction (BOO) nomogram: none, mild, and moderate to severe. Subgroup comparisons were also made. RESULTS: Of a total of 187 women, 154 (79 alfuzosin, 75 placebo) were included in the analysis. After 8 weeks of treatment, the AUA-SS decreased by 7.0 in the alfuzosin group and by 8.0 in the placebo group. Changes in AUA-SS subscores, BFLUTS (except the I-sum), the voiding diary, and Qmax/PVR were not significantly different between groups. Approximately 54% of the alfuzosin group and 62% of the placebo group were satisfied with the treatment. No significant difference was observed between groups according to the presence or grade of BOO. CONCLUSIONS: Alfuzosin might not be more effective than placebo for treating FVD. The presence or the grade of BOO did not affect the results. A further study with sufficient power is needed to determine the efficacy of α1-AR blockers for the treatment of FVD.
Adrenergic alpha-Antagonists
;
Female
;
Humans
;
Lower Urinary Tract Symptoms
;
Nomograms
;
Receptors, Adrenergic, alpha-1
;
Urinary Bladder Neck Obstruction
;
Urodynamics
4.Clinical Implications of the Serum Apelin Level on Portal Hypertension and Prognosis of Liver Cirrhosis.
Yoo Li LIM ; Eunhee CHOI ; Yoon Ok JANG ; Youn Zoo CHO ; Yong Seok KANG ; Soon Koo BAIK ; Sang Ok KWON ; Moon Young KIM
Gut and Liver 2016;10(1):109-116
BACKGROUND/AIMS: Levels of serum apelin (s-apelin), an endogenous ligand for angiotensin-like receptor 1, have been shown to be related to hepatic fibrosis and hemodynamic abnormalities in preclinical studies. We investigated the clinical implications of s-apelin as a noninvasive prognostic biomarker for chronic liver disease (CLD). METHODS: From January 2009 to December 2012, 215 CLD patients were enrolled and underwent clinical data collection, hepatic venous pressure gradient (HVPG) measurement, and liver biopsy. s-apelin was detected with a human total apelin enzyme-linked immunosorbent assay kit. All patients were prospectively observed during the median follow-up period of 23.0±12.9 months for decompensation and mortality. RESULTS: A total of 42 patients (19.5%) died during the follow-up period. s-apelin was significantly correlated with measurements of liver stiffness (R2=0.263, p<0.001) and collagen proportional area (R2=0.213, p<0.001) measured from liver biopsy tissue and HVPG (R2=0.356, p<0.001). In a multivariate analysis using a Cox regression hazard model, s-apelin was a weakly significant predictor of decompensation (hazard ratio [HR], 1.002; p<0.001) and mortality (HR, 1.003; p<0.001). CONCLUSIONS: s-apelin showed a significant relationship with CLD severity. However, its significance as a noninvasive biomarker for disease severity and prognosis was weak.
Adult
;
Biomarkers/blood
;
Biopsy
;
Enzyme-Linked Immunosorbent Assay
;
Female
;
Follow-Up Studies
;
Humans
;
Hypertension, Portal/*blood/complications/mortality
;
Intercellular Signaling Peptides and Proteins/*blood
;
Liver/blood supply/pathology
;
Liver Cirrhosis/*blood/etiology/mortality/pathology
;
Male
;
Middle Aged
;
Portal Pressure
;
Prognosis
;
Proportional Hazards Models
;
Prospective Studies
5.Re-mobilization of Lost Coronary Stent From the Axillary Artery to the Femoral Artery.
Jeong Seok LEE ; Hack Lyoung KIM ; Jae Bin SEO ; Woo Hyun LIM ; Eun Gyu KANG ; Woo Young CHUNG ; Sang Hyun KIM ; Zoo Hee JO ; Myung A KIM
Journal of Lipid and Atherosclerosis 2016;5(1):87-92
Stent migration and loss are rare but can be devastating complications during percutaneous coronary intervention (PCI) for coronary artery disease. We report a unique case of wandering stent from the right coronary artery to the femoral artery via the axillary artery. Initially, the stent was stripped from the delivery catheter and embolized to axillary artery during emergent PCI. An intra-aortic balloon pump might have forced retrograde movement of the stent to axillary artery which have subsequently remobilized to the femoral artery. After stabilization, the stent was successfully removed by a percutaneous approach using a snare. Immediate retrieval of wandering stent is recommended for the prevention of secondary embolization.
Axillary Artery*
;
Catheters
;
Coronary Artery Disease
;
Coronary Vessels
;
Drug-Eluting Stents
;
Embolism
;
Femoral Artery*
;
Percutaneous Coronary Intervention
;
SNARE Proteins
;
Stents*
6.The usefulness of contrast-enhanced ultrasonography in the early detection of hepatocellular carcinoma viability after transarterial chemoembolization: pilot study.
Youn Zoo CHO ; So Yeon PARK ; Eun Hee CHOI ; Soon Koo BAIK ; Sang Ok KWON ; Young Ju KIM ; Seung Hwan CHA ; Moon Young KIM
Clinical and Molecular Hepatology 2015;21(2):165-174
BACKGROUND/AIMS: The therapeutic effect of transarterial chemoembolization (TACE) against hepatocellular carcinoma (HCC) is usually assessed using multidetector computed tomography (MDCT). However, dense lipiodol depositions can mask the enhancement of viable HCC tissue in MDCT. Contrast-enhanced ultrasonography (CEUS) could be effective in detecting small areas of viability and patency in vessels. We investigated whether arterial enhancement in CEUS after treatment with TACE can be used to detect HCC viability earlier than when using MDCT. METHODS: Twelve patients received CEUS, MDCT, and gadoxetic-acid-enhanced dynamic magnetic resonance imaging (MRI) at baseline and 4 and 12 weeks after TACE. The definition of viable HCC was defined as MRI positivity after 4 or 12 weeks. RESULTS: Eight of the 12 patients showed MRI positivity at 4 or 12 weeks. All patients with positive CEUS findings at 4 weeks (n=8) showed MRI positivity and residual viable HCC at 4 or 12 weeks. Five of the eight patients with positive CEUS findings at 4 weeks had negative results on the 4-week MDCT scan. Four (50%) of these eight patients did not have MRI positivity at 4 weeks and were ultimately confirmed as having residual HCC tissue at the 12-week MRI. Kappa statistics revealed near-perfect agreement between CEUS and MRI (kappa=1.00) and substantial agreement between MDCT and MRI (kappa=0.67). CONCLUSIONS: In the assessment of the response to TACE, CEUS at 4 weeks showed excellent results for detecting residual viable HCC, which suggests that CEUS can be used as an early additive diagnosis tool when deciding early additional treatment with TACE.
Aged
;
Aged, 80 and over
;
Antineoplastic Agents/administration & dosage
;
Carcinoma, Hepatocellular/pathology/therapy/*ultrasonography
;
Chemoembolization, Therapeutic
;
Contrast Media/*chemistry
;
Female
;
Gadolinium DTPA/chemistry
;
Humans
;
Liver Neoplasms/pathology/therapy/*ultrasonography
;
Magnetic Resonance Imaging
;
Male
;
Middle Aged
;
Pilot Projects
;
Tomography, X-Ray Computed
;
Treatment Outcome
7.The Accuracy of Ultrasonography for the Evaluation of Portal Hypertension in Patients with Cirrhosis: A Systematic Review.
Gaeun KIM ; Youn Zoo CHO ; Soon Koo BAIK ; Moon Young KIM ; Won Ki HONG ; Sang Ok KWON
Korean Journal of Radiology 2015;16(2):314-324
OBJECTIVE: Studies have presented conflicting results regarding the accuracy of ultrasonography (US) for diagnosing portal hypertension (PH). We sought to identify evidence in the literature regarding the accuracy of US for assessing PH in patients with liver cirrhosis. MATERIALS AND METHODS: We conducted a systematic review by searching databases, including MEDLINE, EMBASE, and the Cochrane Library, for relevant studies. RESULTS: A total of 14 studies met our inclusion criteria. The US indices were obtained in the portal vein (n = 9), hepatic artery (n = 6), hepatic vein (HV) (n = 4) and other vessels. Using hepatic venous pressure gradient (HVPG) as the reference, the sensitivity (Se) and specificity (Sp) of the portal venous indices were 69-88% and 67-75%, respectively. The correlation coefficients between HVPG and the portal venous indices were approximately 0.296-0.8. No studies assess the Se and Sp of the hepatic arterial indices. The correlation between HVPG and the hepatic arterial indices ranged from 0.01 to 0.83. The Se and Sp of the hepatic venous indices were 75.9-77.8% and 81.8-100%, respectively. In particular, the Se and Sp of HV arrival time for clinically significant PH were 92.7% and 86.7%, respectively. A statistically significant correlation between HVPG and the hepatic venous indices was observed (0.545-0.649). CONCLUSION: Some US indices, such as HV, exhibited an increased accuracy for diagnosing PH. These indices may be useful in clinical practice for the detection of significant PH.
Hepatic Veins/ultrasonography
;
Humans
;
Hypertension, Portal/*diagnosis/*ultrasonography
;
Liver Cirrhosis/*ultrasonography
;
Middle Aged
;
Portal Pressure
;
Portal Vein/ultrasonography
;
Prospective Studies
;
Sensitivity and Specificity
;
Vascular Resistance
8.Androgen Receptor-dependent Expression of Low-density Lipoprotein Receptor-related Protein 6 is Necessary for Prostate Cancer Cell Proliferation.
Eun PARK ; Eun Kyoung KIM ; Minkyoung KIM ; Jung Min HA ; Young Whan KIM ; Seo Yeon JIN ; Hwa Kyoung SHIN ; Hong Koo HA ; Jeong Zoo LEE ; Sun Sik BAE
The Korean Journal of Physiology and Pharmacology 2015;19(3):235-240
Androgen receptor (AR) signaling is important for prostate cancer (PCa) cell proliferation. Here, we showed that proliferation of hormone-sensitive prostate cancer cells such as LNCaP was significantly enhanced by testosterone stimulation whereas hormone-insensitive prostate cancer cells such as PC3 and VCaP did not respond to testosterone stimulation. Blocking of AR using bicalutamide abolished testosterone-induced proliferation of LNCaP cells. In addition, knockdown of AR blocked testosterone-induced proliferation of LNCaP cells. Basal expression of low-density lipoprotein receptor-related protein 6 (LRP6) was elevated in VCaP cells whereas stimulation of testosterone did not affect the expression of LRP6. However, expression of LRP6 in LNCaP cells was increased by testosterone stimulation. In addition, knockdown of LRP6 abrogated testosterone-induced proliferation of LNCaP cells. Given these results, we suggest that androgen-dependent expression of LRP6 plays a crucial role in hormone-sensitive prostate cancer cell proliferation.
Cell Proliferation*
;
Low Density Lipoprotein Receptor-Related Protein-6*
;
Prostatic Neoplasms*
;
Receptors, Androgen
;
Testosterone
9.Relationship between Tetrahydrobiopterin and Portal Hypertension in Patients with Chronic Liver Disease.
Won Ki HONG ; Kwang Yong SHIM ; Soon Koo BAIK ; Moon Young KIM ; Mee Yon CHO ; Yoon Ok JANG ; Young Shik PARK ; Jin HAN ; Gaeun KIM ; Youn Zoo CHO ; Hye Won HWANG ; Jin Hyung LEE ; Myeong Hun CHAE ; Sang Ok KWON
Journal of Korean Medical Science 2014;29(3):392-399
Tetrahydrobiopterin (BH4) is an essential cofactor in NO synthesis by endothelial nitric oxide synthase (eNOS) enzymes. It has been previously suggested that reduced intrahepatic BH4 results in a decrease in intrahepatic NO and contributes to increased hepatic vascular resistance and portal pressure in animal models of cirrhosis. The main aim of the present study was to evaluate the relationship between BH4 and portal hypertension (PHT). One hundred ninety-three consecutive patients with chronic liver disease were included in the study. Liver biopsy, measurement of BH4 and hepatic venous pressure gradient (HVPG) were performed. Hepatic fibrosis was classified using the Laennec fibrosis scoring system. BH4 levels were determined in homogenized liver tissues of patients using a high performance liquid chromatography (HPLC) system. Statistical analysis was performed to evaluate the relationship between BH4 and HVPG, grade of hepatic fibrosis, clinical stage of cirrhosis, Child-Pugh class. A positive relationship between HVPG and hepatic fibrosis grade, clinical stage of cirrhosis and Child-Pugh class was observed. However, the BH4 level showed no significant correlation with HVPG or clinical features of cirrhosis. BH4 concentration in liver tissue has little relation to the severity of portal hypertension in patients with chronic liver disease.
Adult
;
Aged
;
Biopterin/*analogs & derivatives/analysis
;
*Chromatography, High Pressure Liquid
;
Chronic Disease
;
Elasticity Imaging Techniques
;
Female
;
Hepatic Veins/physiology
;
Humans
;
Hypertension, Portal/complications/*diagnosis/metabolism
;
Liver/pathology
;
Liver Cirrhosis/ultrasonography
;
Liver Diseases/complications/*diagnosis/metabolism
;
Male
;
Middle Aged
;
Nitric Oxide/metabolism
;
Portal Pressure
;
Regression Analysis
;
Severity of Illness Index
10.Effects of candesartan and propranolol combination therapy versus propranolol monotherapy in reducing portal hypertension.
Jae Hyun KIM ; Jung Min KIM ; Youn Zoo CHO ; Ji Hoon NA ; Hyun Sik KIM ; Hyoun A KIM ; Hye Won KANG ; Soon Koo BAIK ; Sang Ok KWON ; Seung Hwan CHA ; Young Ju KIM ; Moon Young KIM
Clinical and Molecular Hepatology 2014;20(4):376-383
BACKGROUND/AIMS: Angiotensin receptor blockers (ARBs) inhibit activated hepatic stellate cell contraction and are thought to reduce the dynamic portion of intrahepatic resistance. This study compared the effects of combined treatment using the ARB candesartan and propranolol versus propranolol monotherapy on portal pressure in patients with cirrhosis in a prospective, randomized controlled trial. METHODS: Between January 2008 and July 2009, 53 cirrhotic patients with clinically significant portal hypertension were randomized to receive either candesartan and propranolol combination therapy (26 patients) or propranolol monotherapy (27 patients). Before and 3 months after the administration of the planned medication, the hepatic venous pressure gradient (HVPG) was assessed in both groups. The dose of propranolol was subsequently increased from 20 mg bid until the target heart rate was reached, and the candesartan dose was fixed at 8 mg qd. The primary endpoint was the HVPG response rate; patients with an HVPG reduction of >20% of the baseline value or to <12 mmHg were defined as responders. RESULTS: The mean portal pressure declined significantly in both groups, from 16 mmHg (range, 12-28 mmHg) to 13.5 mmHg (range, 6-20 mmHg) in the combination group (P<0.05), and from 17 mmHg (range, 12-27 mmHg) to 14 mmHg (range, 7-25 mmHg) in the propranolol monotherapy group (P<0.05). However, the medication-induced pressure reduction did not differ significantly between the two groups [3.5 mmHg (range, -3-11 mmHg) vs. 3 mmHg (range, -8-10 mmHg), P=0.674]. The response rate (55.6% vs. 61.5%, P=0.435) and the reductions in mean blood pressure or heart rate also did not differ significantly between the combination and monotherapy groups. CONCLUSIONS: The addition of candesartan (an ARB) to propranolol confers no benefit relative to classical propranolol monotherapy for the treatment of portal hypertension, and is thus not recommended.
Adolescent
;
Adult
;
Aged
;
Antihypertensive Agents/*therapeutic use
;
Benzimidazoles/*therapeutic use
;
Blood Pressure
;
Drug Therapy, Combination
;
Female
;
Humans
;
Hypertension, Portal/complications/*drug therapy
;
Liver Cirrhosis/complications/diagnosis
;
Male
;
Middle Aged
;
Propranolol/*therapeutic use
;
Prospective Studies
;
Tetrazoles/*therapeutic use
;
Treatment Outcome
;
Young Adult

Result Analysis
Print
Save
E-mail