• Title/Summary/Keyword: Multicenter clinical studies

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Extended Use of Extracorporeal Membrane Oxygenation for Acute Respiratory Distress Syndrome: A Retrospective Multicenter Study

  • Kim, Won-Young;Park, SeungYong;Kim, Hwa Jung;Baek, Moon Seong;Chung, Chi Ryang;Park, So Hee;Kang, Byung Ju;Oh, Jin Young;Cho, Woo Hyun;Sim, Yun Su;Cho, Young-Jae;Park, Sunghoon;Kim, Jung-Hyun;Hong, Sang-Bum
    • Tuberculosis and Respiratory Diseases
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    • v.82 no.3
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    • pp.251-260
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    • 2019
  • Background: Beyond its current function as a rescue therapy in acute respiratory distress syndrome (ARDS), extracorporeal membrane oxygenation (ECMO) may be applied in ARDS patients with less severe hypoxemia to facilitate lung protective ventilation. The purpose of this study was to evaluate the efficacy of extended ECMO use in ARDS patients. Methods: This study reviewed 223 adult patients who had been admitted to the intensive care units of 11 hospitals in Korea and subsequently treated using ECMO. Among them, the 62 who required ECMO for ARDS were analyzed. The patients were divided into two groups according to pre-ECMO arterial blood gas: an extended group (n=14) and a conventional group (n=48). Results: Baseline characteristics were not different between the groups. The median arterial carbon dioxide tension/fraction of inspired oxygen ($FiO_2$) ratio was higher (97 vs. 61, p<0.001) while the median $FiO_2$ was lower (0.8 vs. 1.0, p<0.001) in the extended compared to the conventional group. The 60-day mortality was 21% in the extended group and 54% in the conventional group (p=0.03). Multivariate analysis indicated that the extended use of ECMO was independently associated with reduced 60-day mortality (odds ratio, 0.10; 95% confidence interval, 0.02-0.64; p=0.02). Lower median peak inspiratory pressure and median dynamic driving pressure were observed in the extended group 24 hours after ECMO support. Conclusion: Extended indications of ECMO implementation coupled with protective ventilator settings may improve the clinical outcome of patients with ARDS.

The Latest Research Trends on Woohwangchungsim-won : A Review in Korean Articles (우황청심원 관련 최근 연구 동향 : 국내 논문에 대한 고찰)

  • Lee, Je-Won;Baek, Kyung-Min;Baek, Young-Doo;Im, Eun-Young;Chang, Woo-Seok;Cheon, Woo-Hyun;Chung, In-Kwon
    • The Journal of Internal Korean Medicine
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    • v.31 no.4
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    • pp.775-791
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    • 2010
  • Objectives : Woohwangchungsim-won has been used for acute diseases such as cerebrovascular disease (stroke), heart disease. The aim of this study was to determine the effects, significance & necessity of Woohwangchungsim-won in acute stages of these disease by reviewing Korean articles about Woohwangchungsim-won. Methods : Article searches were performed on 8 major Korean web article search engine from January 1980 to August 2010. There were no restrictions on the types of publication, including grey articles. Results : Forty-three articles were included. Twenty one were efficacy tests, thirteen were comparative efficacy tests, eight were toxicity tests, and one was new method development. Eighteen articles were multicenter studies and twenty five were single center studies. Thirty two articles were animal testing, only ten articles were clinical articles. Thirty seven articles presented the composition and quantity of Woohwangchungsim-won, but six did not. Conclusions : The results of Korean articles about Woohwangchungsim-won can not strongly support the effects, significance & necessity of Woohwangchungsim-won. More rigorous studies are required for determination of the effects of Woohwangchungsim-won.

Clinical Characteristics of Ureteral Duplication in Children

  • Park, Min Ji;Baek, Hee Sun;Jang, Hae Min;Lee, Jun Nyung;Chung, Sung Kwang;Jeong, Shin Young;Lee, So Mi;Cho, Min Hyun
    • Childhood Kidney Diseases
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    • v.23 no.2
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    • pp.100-104
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    • 2019
  • Purpose: Ureteral duplication is a relatively common congenital urinary tract abnormality that can be associated with various clinical problems such as vesicoureteral reflux (VUR), hydronephrosis, and ectopic ureters. The purpose of this study was to analyze the clinical characteristics of pediatric patients with recently diagnosed ureteral duplication and to identify any differences from those described in previous reports. Methods: We retrospectively reviewed the clinical characteristics and course of pediatric patients who were diagnosed with ureteral duplication between January 2008 and June 2017. Results: A total of 32 pediatric patients were diagnosed with ureteral duplication during the study period. The male to female ratio was 1:2.2. Twenty-seven patients (84.4%) were first diagnosed with ureteral duplication at less than 3 months of age, and 26 (81.3%) were first diagnosed by prenatal ultrasonography. Four of the 32 patients were diagnosed with bilateral ureteral duplication, for a total of 36 occurrences of ureteral duplication. In 17 occurrences of complete ureteral duplication (47.2%), other urinary tract anomalies were also found; namely, ureterocele (7), VUR (11), and ectopic ureter (5). However, none of the patients with incomplete ureteral duplication had ureterocele or VUR. Conclusions: With the advent of routine prenatal ultrasound, ureteral duplication is being diagnosed earlier than was previously possible, enabling timely treatment of the various accompanying urinary tract anomalies. Multicenter studies are needed to establish guidelines for standardized evaluation and treatment of ureteral duplication.

The Comorbidity of Anxiety Disorder in Depressed Patients : A CRESCEND(Clinical Research Center for Depression in Korea) Cohort Study (우울증 환자에서 불안장애의 동반이환 : 우울증 임상연구센터 코호트연구)

  • Sakong, Jeong-Kyu;Lee, Do-Yun;Suh, Ho-Suk;Sung, Hyung-Mo;Kim, Jung-Bum;Jung, Young-Eun;Lee, Min-Soo;Kim, Jae-Min;Jo, Sunjin
    • Mood & Emotion
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    • v.9 no.1
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    • pp.30-36
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    • 2011
  • Purpose : Anxiety disorder and depressive disorder are often comorbid with each other, and the comorbidity is associated with poorer psychiatric outcome, resistance to treatment, increased risk for suicide, greater chance for recurrence. We aimed to investigate the comorbidity of anxiety disorder in Korea. Method : Subjects were total of 867 depressed patients recruited CRESCEND-K multicenter trial. We used SCID (Structured Clinical Interview for DSM - IV) to find comorbidity of anxiety disorders in depressed patient. Results : Of 867 patients, total 8.2% had anxiety disorder. Proportion of anxiety disorder Not Otherwise Specified was 3.5%, panic disorder was 1.7%, generalized anxiety disorder was 1.1%, post traumatic stress disorder was 0.9%, obsessive compulsive disorder was 0.6%, social phobia was 0.4%. Conclusion : In this study, anxiety disorder in depression were measured at a low comorbidity rate in compare to previous studies. Selection bias, use of antidepressants at registration, severity of depression symptoms, and point of SICD administration seems to have affected these results. It is probable that comorbidity evaluation would be more precise if shorter, structured interviews such as M. I.N.I.-Plus were used during first clinical interview for depression diagnosis.

Surfactant preparations for preterm infants with respiratory distress syndrome: past, present, and future

  • Jeon, Ga Won
    • Clinical and Experimental Pediatrics
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    • v.62 no.5
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    • pp.155-161
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    • 2019
  • Following the first successful trial of surfactant replacement therapy for preterm infants with respiratory distress syndrome (RDS) by Fujiwara in 1980, several animal-derived natural surfactants and synthetic surfactants have been developed. Synthetic surfactants were designed to overcome limitations of natural surfactants such as cost, immune reactions, and infections elicited by animal proteins contained in natural surfactants. However, first-generation synthetic surfactants that are protein-free have failed to prove their superiority over natural surfactants because they lack surfactant protein (SP). Lucinactant, a second-generation synthetic surfactant containing the SP-B analog, was better or at least as effective as the natural surfactant, suggesting that lucinactant could act an alternative to natural surfactants. Lucinactant was approved by the U. S. Food and Drug Administration in March 2012 as the fifth surfactant to treat neonatal RDS. CHF5633, a second-generation synthetic surfactant containing SP-B and SP-C analogs, was effective and safe in a human multicenter cohort study for preterm infants. Many comparative studies of natural surfactants used worldwide have reported different efficacies for different preparations. However, these differences are believed to due to site variations, not actual differences. The more important thing than the composition of the surfactant in improving outcome is the timing and mode of administration of the surfactant. Novel synthetic surfactants containing synthetic phospholipid incorporated with SP-B and SP-C analogs will potentially represent alternatives to natural surfactants in the future, while improvement of treatment modalities with less-invasive or noninvasive methods of surfactant administration will be the most important task to be resolved.

A Multicenter Study of Pertussis Infection in Adults with Coughing in Korea: PCR-Based Study

  • Park, Sunghoon;Lee, Myung-Gu;Lee, Kwan Ho;Park, Yong Bum;Yoo, Kwang Ha;Park, Jeong-Woong;Kim, Changhwan;Lee, Yong Chul;Park, Jae Seuk;Kwon, Yong Soo;Seo, Ki-Hyun;Kim, Hui Jung;Kwak, Seung Min;Kim, Ju-Ock;Lim, Seong Yong;Sung, Hwa-Young;Jung, Sang-Oun;Jung, Ki-Suck
    • Tuberculosis and Respiratory Diseases
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    • v.73 no.5
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    • pp.266-272
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    • 2012
  • Background: Limited data on the incidence and clinical characteristics of adult pertussis infections are available in Korea. Methods: Thirty-one hospitals and the Korean Centers for Disease Control and Prevention collaborated to investigate the incidence and clinical characteristics of pertussis infections among adults with a bothersome cough in non-outbreak, ordinary outpatient settings. Nasopharyngeal aspirates or nasopharyngeal swabs were collected for polymerase chain reaction (PCR) and culture tests. Results: The study enrolled 934 patients between September 2009 and April 2011. Five patients were diagnosed as confirmed cases, satisfying both clinical and laboratory criteria (five positive PCR and one concurrent positive culture). Among 607 patients with cough duration of at least 2 weeks, 504 satisfied the clinical criteria of the US Centers for Disease Control and Prevention (i.e., probable case). The clinical pertussis cases (i.e., both probable and confirmed cases) had a wide age distribution ($45.7{\pm}15.5$ years) and cough duration (median, 30 days; interquartile range, 18.0~50.0 days). In addition, sputum, rhinorrhea, and myalgia were less common and dyspnea was more common in the clinical cases, compared to the others (p=0.037, p=0.006, p=0.005, and p=0.030, respectively). Conclusion: The positive rate of pertussis infection may be low in non-outbreak, ordinary clinical settings if a PCR-based method is used. However, further prospective, well-designed, multicenter studies are needed.

Study on the Pulse Diagnosis for Pattern Identifications in Stroke Patients (중풍환자의 변증에 따른 맥상의 분포)

  • Lee, Jung-Sup;Kang, Byoung-Kab;Ko, Mi-Mi;Kim, Bo-Young;Kim, Jeong-Cheol;Lee, In;Kim, Yun-Sik;Cho, Ki-Ho;Choi, Sun-Mi;Bang, Ok-Sun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.6
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    • pp.1378-1382
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    • 2008
  • This study is aim to evaluate pulse diagnosis as indicators for classification of the pattern identifications in stroke patients. To get the clinical information, we recruited the onset 1 month stroke patients through the multicenter network which consists of 13 oriental hospitals. The clinical informations about three pairs of pulse wave form and levels of their significancy based on the case report form (CRF) were collected and their distribution in each pattern identification were analyzed. The results are as follows Fire-Heat group shows high portions of floating pulse, rapid pulse and solid pulse. Qi Defficiency group has a greater portion of deep pulse, slow pulse, deficient pulse. The well-defined character of Phlegm-Retained Fluid, Yin Defficiency, Static Blood groups cannot be explained by pulse wave form. These results show a rough relationship between the pulse diagnosis and pattern identifications of stroke therefore, further studies are required to determine the pulse diagnosis as significant indicators of stroke pattern identification.

Safety of Herbal Medicines on Liver Function in Functional Dyspepsia Patients: A Single-Center Retrospective Study (기능성 소화불량 환자의 간 기능에 대한 한약 투여의 안전성: 단일 센터 후향적 연구)

  • Aram Han;Chang-Yul Keum;Chae-Rim Yoon;Su-Hyun Choi;Dahee Jeong;Nahyun Jeong;Hae-in Jeong;Na-Yeon Ha;Jinsung Kim
    • The Journal of Internal Korean Medicine
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    • v.44 no.4
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    • pp.635-644
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    • 2023
  • Objectives: This study analyzed laboratory serum data results before and after patients took herbal medicine to confirm the clinical safety of herbal medicine. In addition, in the event of liver damage, the case was analyzed to confirm the characteristics of liver damage and the possibility of liver damage caused by herbal medicine. Methods: A retrospective chart review of the effects of herbal medicine on liver function in patients diagnosed with functional dyspepsia was conducted. The electronic medical records of 128 patients in a single hospital were reviewed. Results: The statistical analysis revealed a statistically significant decrease in liver function-related laboratory serum data after taking herbal medicine (p<0.05). In addition, among 128 patients, there were two cases of drug-induced liver injury (DILI) (1.56%). Conclusion: Taking herbal medicine prescribed by experts does not significantly affect liver function in patients with functional dyspepsia. Rather, the liver levels of the subjects showed a significant decrease after taking herbal medicine. To support these results, further large-scale multicenter prospective studies are necessary.

The Dome Technique for Managing Massive Anterosuperior Medial Acetabular Bone Loss in Revision Total Hip Arthroplasty: Short-Term Outcomes

  • Tyler J. Humphrey;Colin M. Baker;Paul M. Courtney;Wayne G. Paprosky;Hany S. Bedair;Neil P. Sheth;Christopher M. Melnic
    • Hip & pelvis
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    • v.35 no.2
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    • pp.122-132
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    • 2023
  • Purpose: The dome technique is a technique used in performance of revision total hip arthroplasty (THA) involving intraoperative joining of two porous metal acetabular augments to fill a massive anterosuperior medial acetabular bone defect. While excellent outcomes were achieved using this surgical technique in a series of three cases, short-term results have not been reported. We hypothesized that excellent short-term clinical and patient reported outcomes could be achieved with use of the dome technique. Materials and Methods: A multicenter case series was conducted for evaluation of patients who underwent revision THA using the dome technique for management of Paprosky 3B anterosuperior medial acetabular bone loss from 2013-2019 with a minimum clinical follow-up period of two years. Twelve cases in 12 patients were identified. Baseline demographics, intraoperative variables, surgical outcomes, and patient reported outcomes were acquired. Results: The implant survivorship was 91% with component failure requiring re-revision in only one patient at a mean follow-up period of 36.2 months (range, 24-72 months). Three patients (25.0%) experienced complications, including re-revision for component failure, inter-prosthetic dual-mobility dissociation, and periprosthetic joint infection. Of seven patients who completed the HOOS, JR (hip disability and osteoarthritis outcome score, joint replacement) survey, five patients showed improvement. Conclusion: Excellent outcomes can be achieved using the dome technique for management of massive anterosuperior medial acetabular defects in revision THA with survivorship of 91% at a mean follow-up period of three years. Conduct of future studies will be required in order to evaluate mid- to long-term outcomes for this technique.

Clinical application of a new hemostatic material using mussel-inspired catecholamine hemostat: A pilot study

  • Young-Mok Park;Hyung-Il Seo;Jae-Hoon Kim;Sung Pil Yoon;Haeshin Lee;Moon Sue Lee
    • Annals of Hepato-Biliary-Pancreatic Surgery
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    • v.26 no.1
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    • pp.98-103
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    • 2022
  • Backgrounds/Aims: This study aimed to evaluate clinical application of InnoSEAL Plus (a mussel-inspired catecholamine hemostat) as a new hemostatic material for humans. Methods: Patients treated with topical hemostatic patches after liver resection were enrolled. They were divided into an experimental group (InnoSEAL Plus group) and two control groups (TachoSil® group and Surgicel Fibrillar® group) for efficacy evaluation. Results: A total of 15 patients were enrolled. Each group had five patients. The 3-minute hemostasis success rate was 80.0% (4/5 patients) in the InnoSEAL Plus group, 80.0% (4/5 patients) in the TachoSil® group, and 40.0% (2/5 patients) in the Surgicel Fibrillar® group, showing no significant difference in the success rate among these groups (p > 0.05). All three groups exhibited 100% success rate for 10-minute hemostasis. Both InnoSEAL Plus and TachoSil® groups had one patient developing adverse events, which were treated easily with drug administrations. Conclusions: InnoSEAL Plus is expected to be functionally not inferior to other conventional hemostatic agents. However, it is necessary to confirm this through multicenter prospective studies in the future.