1.Perianal Episiotomy Scar Endometrioma: A Case Report.
Wei Chiang LIU ; Kyo Nam KIM ; Soo Ah KIM ; Soon Yong KIM
Journal of the Korean Radiological Society 2000;43(3):339-341
Endometrioma is a common clinical condition, but cases in which an episiotomy scaris present are, however, rare: only two cases have been reported in obstetric journals, and one other in a radiologic journal. All three were in English. We encountered a case in which a solitary endometrioma was present in the perineal region beneath an episiotomy scar. An irregularly marginated hypoechoic mass was revealed by US, and a discrete homogeneous enhancing mass by CT.
Cicatrix*
;
Endometriosis*
;
Episiotomy*
;
Female
2.Rotablation in the treatment of high-risk patients with heavily calcified left-main coronary lesions
Menghsiu CHIANG ; Hungtao YI ; Chengrong TSAO ; Weichun CHANG ; Chiehshou SU ; Tsunjui LIU ; Kaewoei LIANG ; Chihtai TING ; Wenlieng LEE
Journal of Geriatric Cardiology 2013;(3):217-225
Objective Heavily calcified left-main coronary diseases (LMCA) remain a formidable challenge for percutaneous interventions (PCI). This study was to investigate the safety and efficacy of using rotational atherectomy (RA) in treating such lesions in actual practice. Methods From February 2004 to March 2012, all consecutive patients who received RA for heavily-calcified LMCA lesions in our cath lab were en-rolled. The relevant clinical and angiographic characteristics at the time of index PCI, as well as the clinical follow-up outcomes, were re-trieved and analyzed. Results A total of 34 consecutive patients were recruited with a mean age 77.2 ± 10.2 years. There were 82.4%pre-sented with acute coronary syndrome and 11.8%with cardiogenic shock. Chronic renal disease and diabetes were seen in 64.7%and 52.9%, respectively. Triple-vessel coronary disease was found in 76.5%of them. The mean SYNTAX score was 50 ± 15 and EuroSCORE II scale 5.6 ± 4.8. The angiographic success rate was 100%with a procedural success rate of 91.2%. The mean number of burrs per patient was 1.7 ± 0.5. Crossing-over stenting was used in 64.7%. Most stents were drug-eluting (67.6%). Intra-aortic ballon pump was used in 20.6%of the procedures. Three patients died during hospitalization, all due to presenting cardiogenic shock. No major complication occurred. Among 31 hospital survivors, the major adverse cardiac events (MACE) rate was 16.1%, all due to target lesion revascularization or target vessel revas-cularization. Conclusions In high-surgical-risk elderly patients, plaque modification with RA in PCI of heavily-calcified LMCA could be safely accomplished with a minimal complication rate and low out-of-hospital MACE.
3.Lytic Bacteriophage as a Biomaterial to Prevent Biofilm Formation and Promote Neural Growth
Zi-Hao LIU ; Ming-Tse CHIANG ; Hsin-Yi LIN
Tissue Engineering and Regenerative Medicine 2022;19(5):987-1000
BACKGROUND:
Although non-lytic filamentous bacteriophages have been made into biomaterial to guide tissue growth, they had limited ability to prevent bacterial infection. In this work a lytic bacteriophage was used to make an antibacterial biomaterial for neural tissue repair.
METHODS:
Lytic phages were chemically bound to the surface of a chitosan film through glutaraldehyde crosslinking. After the chemical reaction, the contact angle of the sample surface and the remaining lytic potential of the phages were measured. The numbers of bacteria on the samples were measured and examined under scanning electron microscopy. Transmission electron microscopy (TEM) was used to observe the phages and phage-infected bacteria. A neuroblast cell line was cultured on the samples to evaluate the sample’s biocompatibility.
RESULTS:
The phages conjugated to the chitosan film preserved their lytic potential and reduced 68% of bacterial growth on the sample surface at 120 min (p < 0.001). The phage-linked surface had a significantly higher contact angle than that of the control chitosan (p < 0.05). After 120 min a bacterial biofilm appeared on the control chitosan, while the phagelinked sample effectively prevented biofilm formation. The TEM images demonstrated that the phage attached and lysed the bacteria on the phage-linked sample at 120 min. The phage-linked sample significantly promoted the neuroblast cell attachment (p < 0.05) and proliferation (p < 0.01). The neuroblast on the phage-linked sample demonstrated more cell extensions after day 1.
CONCLUSION
The purified lytic phages were proven to be a highly bioactive nanomaterial. The phage-chitosan composite material not only promoted neural cell proliferation but also effectively prevent bacterial growth, a major cause of implant failure and removal.
4.The Clinical Characteristics and Manifestation of Anxious Depression Among Patients With Major Depressive Disorders-Results From a Taiwan Multicenter Study
Huang-Li LIN ; Wei-Yang LEE ; Chun-Hao LIU ; Wei-Yu CHIANG ; Ya-Ting HSU ; Chin-Fu HSIAO ; Hsiao-Hui TSOU ; Chia-Yih LIU
Psychiatry Investigation 2024;21(6):561-572
Objective:
Anxious depression is a prevalent characteristic observed in Asian psychiatric patients diagnosed with major depressive disorder (MDD). This study aims to investigate the prevalence and clinical presentation of anxious depression in Taiwanese individuals diagnosed with MDD.
Methods:
We recruited psychiatric outpatients aged over 18 who had been diagnosed with MDD through clinical interviews. This recruitment took place at five hospitals located in northern Taiwan. We gathered baseline clinical and demographic information from the participants. Anxious depression was identified using a threshold of an anxiety/somatization factor score ≥7 on the 21-item Hamilton Rating Scale for Depression (HAM-D).
Results:
In our study of 399 patients (84.21% female), 64.16% met the criteria for anxious depression. They tended to be older, married, less educated, with more children, and an older age of onset. Anxious depression patients had higher HAM-D and Clinical Global Impression–Severity scale score, more panic disorder (without agoraphobia), and exhibited symptoms like agitation, irritability, concentration difficulties, psychological and somatic anxiety, somatic complaints, hypochondriasis, weight loss, and increased insight. Surprisingly, their suicide rates did not significantly differ from non-anxious depression patients. This highlights the importance of recognizing and addressing these unique characteristics.
Conclusion
Our study findings unveiled that the prevalence of anxious depression among Taiwanese outpatients diagnosed with MDD was lower compared to inpatients but substantially higher than the reported rates in European countries and the United States. Furthermore, patients with anxious depression exhibited a greater occurrence of somatic symptoms.
5.CT Detection of Hepatocellular Carcinoma in Advanced Liver Cirrhosis: Correlation of Helical CT and Explanted Liver.
Jae Hoon LIM ; Min Ju KIM ; Liu Wei CHIANG ; Hyo Keun LIM ; Cheol Keun PARK ; Seung Woon PAIK ; Kwang Cheol KOH ; Jae Won JOH
The Korean Journal of Hepatology 2002;8(2):201-208
OBJECTIVE: The objective of this study was evaluate the diagnostic efficacy of three-phase helical dynamic CT in the detection of hepatocellular carcinomas in patients with advanced liver cirrhosis. MATERIALS AND METFODS: Three-phase helical dynamic CT in 77 patients with advanced liver cirrhosis was evaluated prospectively before orthotopic liver transplantation. The histopathologically confirmed hepatocellular carcinomas in the explanted livers were compared with pretransplantation CT results by one-to-one correlation. RESULTS: Histopathologic examination of the explanted livers revealed 72 hepatocellular carcinomas in 41 patients. The size of the hepatocellular carcinomas was 0.5-14.0 cm (mean, 1.6 cm). The use of helical dynamic CT enabled the detection of 38 of 72 hepatocellular carcinomas (sensitivity, 53%). Fifteen of 35 (43%) hepatocellular carcinomas smaller than 2 cm and 23 of 37 (62%), hepatocellular carcinomas ranging from 2.0 cm to 14.0 cm were detected. Patient sensitivity and specificity in the detection of hepatocellular carcinoma were 81% (33/41) and 94% (34/36), respectively. CONCLUSIONS: Three-phase helical dynamic CT is insensitive for detection of hepatocellular carcinomas in patients with advanced liver cirrhosis, especially for hepatocellular carcinomas smaller than 2 cm.
Adolescent
;
Adult
;
Biopsy
;
Carcinoma, Hepatocellular/complications/pathology/*radiography/surgery
;
Female
;
Human
;
Liver/*pathology
;
Liver Cirrhosis/*complications
;
Liver Neoplasms/complications/pathology/*radiography/surgery
;
Male
;
Middle Aged
;
Prospective Studies
;
Sensitivity and Specificity
;
*Tomography, Spiral Computed
6.Common Neurological Disorders Involving Inpatient Liaisons at a Secondary Referral Hospital in Taiwan: A Retrospective Cross-Sectional Study.
Chih Yang LIU ; Han Lin CHIANG ; Ser Chen FU ; Yu Chin SU ; Cheng Lun HSIAO ; Fu Yi YANG ; Shinn Kuang LIN
Journal of Clinical Neurology 2016;12(1):93-100
BACKGROUND AND PURPOSE: The requirement for neurology liaison is increasing in accordance with the growing health care demands associated with aging populations. The aim of this study was to characterize the nature of neurological inpatient liaisons (NILs) to help plan for the appropriate use of neurology resources. METHODS: This was a retrospective cross-sectional study of NILs in a secondary referral hospital over a 12-month period. RESULTS: There were 853 neurological consultations with a liaison rate of 3% per admission case. Chest medicine, gastroenterology, and infectious disease were the three most frequent specialties requesting liaison, and altered consciousness, seizure, and stroke were the three most frequent disorders for which a NIL was requested. Infection was the most common cause of altered consciousness. Epilepsy, infection, and previous stroke were common causes of seizure disorders. Acute stroke accounted for 44% of all stroke disorders. Electroencephalography was the most recommended study, and was also the most frequently performed. Ninety-five percent of emergency consultations were completed within 2 hours, and 85% of regular consultations were completed within 24 hours. The consult-to-visit times for emergency and regular consultations were 44+/-47 minutes (mean+/-standard deviation) and 730+/-768 minutes, respectively, and were shorter for regular consultations at intensive care units (p=0.0151) and for seizure and stroke disorders (p=0.0032). CONCLUSIONS: Altered consciousness, seizure, and stroke were the most common reasons for NILs. Half of the patients had acute neurological diseases warranting immediate diagnosis and treatment by the consulting neurologists. Balancing increasing neurologist workloads and appropriate health-care resources remains a challenge.
Aging
;
Communicable Diseases
;
Consciousness
;
Cross-Sectional Studies*
;
Delivery of Health Care
;
Diagnosis
;
Electroencephalography
;
Emergencies
;
Epilepsy
;
Gastroenterology
;
Humans
;
Inpatients*
;
Intensive Care Units
;
Nervous System Diseases*
;
Neurology
;
Referral and Consultation
;
Retrospective Studies*
;
Secondary Care Centers*
;
Seizures
;
Stroke
;
Taiwan*
;
Thorax
7.Hepatic CT Enhancement: Comparison between Dimeric and Monomeric Nonionic Contrast Agents in Rabbits.
Gi Hyeon KIM ; Byung Kook KWAK ; Hyung Jin SHIM ; Kyo Nam KIM ; Wei Chiang LIU ; Seung Hoon RYU ; Yang Soo KIM ; Jong Beum LEE ; Kun Sang KIM
Journal of the Korean Radiological Society 2003;48(6):479-483
PURPOSE: To determine the hepatic and vascular enhancement profiles with nonionic dimeric, iodixanol, contrast agent in the rabbit and to compare them with nonionic monomeric, ioversol, contrast agent. MATERIALS AND METHODS: Seven rabbits initially underwent hepatic dynamic CT scan with either iodixanol or ioversol, followed by repeated CT scan with other unused contrast agent with one week interval between scans. Pre and post contrast attenuation values of hepatic parenchyma, aorta and portal vein were measured sequentially. The mean enhancement of the hepatic parenchyma, aorta and portal vein were compared between two agents. The mean peak enhancement and peak enhancement time of the liver, aorta, and portal vein were also compared. RESULTS: The attenuation values of ioversol showed a greater mean hepatic enhancement than iodixanol from 18 seconds to 39 seconds after injection (from late arterial phase to early portal venous phase) with a statistical significance (p<0.05). The mean peak enhancement of hepatic parenchyma, aorta and portal vein was also greater using ioversol than iodixanol, but the mean peak enhancement times of ioversol and iodixanol were nearly identical. CONCLUSION: Ioversol may have the greater effects than iodixanol on hepatic tumor conspicuity, especially from late arterial phase to early portal veneous phase.
Aorta
;
Contrast Media*
;
Liver
;
Portal Vein
;
Rabbits*
;
Tomography, X-Ray Computed
8.Tuberculous Aneurysm of the Abdominal Aorta: Endovascular Repair Using Stent Grafts in Two Cases.
Wei Chiang LIU ; Byung Kook KWAK ; Kyo Nam KIM ; Soon Yong KIM ; Joung Joo WOO ; Dong Jin CHUNG ; Ju Hee HONG ; Ho Sung KIM ; Chang Jun LEE ; Hyung Jin SHIM
Korean Journal of Radiology 2000;1(4):215-218
Tuberculous aneurysm of the aorta is exceedingly rare. To date, the standard therapy for mycotic aneurysm of the abdominal aorta has been surgery involving in-situ graft placement or extra-anatomic bypass surgery followed by effective anti-tuberculous medication. Only recently has the use of a stent graft in the treat-ment of tuberculous aortic aneurysm been described in the literature. We report two cases in which a tuberculous aneurysm of the abdominal aorta was success-fully repaired using endovascular stent grafts. One case involved is a 42-year-old woman with a large suprarenal abdominal aortic aneurysm and a right psoas abscess, and the other, a 41-year-old man in whom an abdominal aortic aneurysm ruptured during surgical drainage of a psoas abscess.
Adult
;
Aneurysm, Infected/drug therapy/radiography/*surgery
;
Antitubercular Agents/therapeutic use
;
Aortic Aneurysm, Abdominal/drug therapy/radiography/*surgery
;
*Blood Vessel Prosthesis Implantation
;
Case Report
;
Female
;
Human
;
Male
;
Psoas Abscess/surgery
;
*Stents
;
Tuberculosis, Cardiovascular/drug therapy/radiography/*surgery
9.The Mid-Term Efficacy and Safety of a Permanent Nitinol IVC Filter (TrapEase) .
Wei Chiang LIU ; Young Soo DO ; Sung Wook CHOO ; Dong Ik KIM ; Young Wook KIM ; Duk Kyung KIM ; Sung Wook SHIN ; Kwang Bo PARK ; Yong Hwan JEON ; In Wook CHOO
Korean Journal of Radiology 2005;6(2):110-116
OBJECTIVE: 1) To evaluate the mid-term efficacy and safety of a permanent nitinol inferior vena cava (IVC) filter; 2) to evaluate filter effectiveness, filter stability and caval occlusion. MATERIALS AND METHODS: A prospective evaluation of the TrapEase IVC filter was performed on 42 patients (eight men, 34 women) ranging in age from 22 to 78 years (mean age 66 years). All patients were ill with a high risk of pulmonary embolism (PE). Indications for filter placement were: 1) deep vein thrombosis with recurrent thromboembolism; 2) and/or free-floating thrombus with contraindication to anticoagulation; and 3) complications in achieving adequate anticoagulation. Follow-up evaluations (mean: 15.4 months, range: 2 to 28 months) were performed at 6- and 12-month intervals after the procedure and included clinical histories, chart reviews, plain film, Doppler ultrasounds, and contrasted abdominal CT scans. RESULTS: In follow-up evaluations, the data analysis revealed no cases of symptomatic PE. There were no cases of filter migration, insertion site thrombosis, filter fracture, or vessel wall perforation. During the study, there was one case of filter thrombosis; early symptomatic thrombosis that was successfully treated in the hospital. Of the 42 subjects, eight died. These deaths were not related to the filter device or the implantation procedure, but to the underlying disease. CONCLUSION: This study demonstrates that the TrapEase permanent IVC filter is a safe and an effective device with low complication rates and is best used in patients with thromboembolic disease with a high risk of PE.
Adult
;
Aged
;
*Alloys
;
Equipment Design
;
Female
;
Follow-Up Studies
;
Humans
;
Male
;
Middle Aged
;
Prospective Studies
;
Pulmonary Embolism/*prevention & control
;
Safety
;
Thromboembolism/complications
;
Treatment Outcome
;
*Vena Cava Filters
;
Vena Cava, Inferior
;
Venous Thrombosis/*complications
10.Ethanol Embolization of Arteriovenous Malformations: Results and Complications of 33 Cases.
Yong Hwan JEON ; Young Soo DO ; Sung Wook SHIN ; Wei Chiang LIU ; Jae Min CHO ; Min Hee LEE ; Dong Ik KIM ; Byung Boong LEE ; Sung Wook CHOO ; In Wook CHOO
Journal of the Korean Radiological Society 2003;49(4):263-270
PURPOSE: To assess the effectiveness of ethanol embolization for the treatment of arteriovenous malformation (AVM), and the complications, if any, arising. MATERIALS AND METHODS: Thirty-three patients with AVMs underwent 145 staged sessions of ethanol embolization. AVMs were located in an upper extremity (n=14), a lower extremity (n=10), the pelvis (n=7), the thorax (n=1), or the abdomen (n=1). Eighty-five transcatheter embolizations and 60 direct percutaneous puncture embolizations were performed, and seven patients underwent additional coil embolization of the dilated outflow vein. The therapeutic effectiveness of embolization was evaluated in terms of the extent to which an AVM was obliterated between baseline and the final angiogram. Complications were classified as minor or major. RESULTS: In 13 patients (39%), AVMs were totally obliterated. In eitht patients (24%), more than 75% were obliterated; in three (9%), the proportion was 50-75%; and in four (12%), less than 50%. Five patients (15%), were not treated. The reasons for failure were the difficulty of approaching the nidus due to previous surgical ligation or coil embolization of the feeding artery, the subcutaneous location of an AVM, post-procedural infection, and massive bleeding during the follow-up period. Twenty-one minor complications such as focal skin necrosis or transient nerve palsy developed during 145 sessions of (an incidence of 14%), but these were relieved by conservative treatment. The five major complications arising (3%) were cerebral infarction, urinary tract infection, acute renal failure due to rhabdomyolysis, permanent median nerve palsy, and infection. CONCLUSION: Ethanol embolization by direct percutaneous puncture or using a transcatheter technique is an effective approach to the treatment of an AVM. However, to overcome the considerable number of complications arising, further investigation is required.
Abdomen
;
Acute Kidney Injury
;
Arteries
;
Arteriovenous Malformations*
;
Cerebral Infarction
;
Embolization, Therapeutic
;
Ethanol*
;
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Incidence
;
Ligation
;
Lower Extremity
;
Median Nerve
;
Necrosis
;
Paralysis
;
Pelvis
;
Punctures
;
Rhabdomyolysis
;
Skin
;
Thorax
;
Upper Extremity
;
Urinary Tract Infections
;
Veins