• Title/Summary/Keyword: Comparative clinical study

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Comparative Study on Subgingival Irrigation Using Some Oral Mouth Rinses on Early Healing Process of Periodontal Inflammation (수 종의 구강세정제에 의한 치은연하 세정이 치주염 초기치유에 미치는 영향에 관한 비교 연구)

  • Yun, Gi-Yon;Kim, Kang-Ju;You, Hyung-Keun;Shin, Hyung-Shik
    • Journal of Periodontal and Implant Science
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    • v.28 no.3
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    • pp.465-475
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    • 1998
  • The purpose of this study was to investigate the comparative effects of subgingival irrigation using some oral mouth rinses on early healing process of periodontal inflammation. The study population consisted of 13 patients with periodontal inflammation and distributed into 4 groups. Oral hygiene instruction, delicate scaling and root planing were done and then irrigated per 3 days during 2 weeks in situ with 1 of 4 solutions ; normal saline, C31G, Benzotonium chloride and tetracycline. Examination regarding probing pocket depth, plaque index, sulcular bleeding index, gingival index, gingival recession and leukocytes differential count was performed. Evaluation was made at the baseline and 2 weeks after non-surgical periodontal therapy. The results were as follows : 1. Clinical indices including probing pocket depth, plaque index, sulcular bleeding index, gingival index and gingival recession were significantly improved from baseline to 2 weeks. But there was no significant differences among 4 groups. 2. PMNs percent on leukocytes differential count was significantly decreased from baseline to 2 weeks on all groups. Those of tetracycline and C31G were significantly decreased than those of normal saline group. These results suggest that clinical indices were not different, but the decrease of inflammation were significantly different among some mouth rinses.

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A Comparative Study Between On-Pump and Off-Pump Coronary Artery Bypass Grafting on Clinical Outcomes

  • Moon Seong-Min;Choi Seok-Cheol
    • Biomedical Science Letters
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    • v.10 no.3
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    • pp.237-243
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    • 2004
  • In recent, many cardiac centers have preferred off-pump coronary artery bypass grafting (CABG) to on-pump CABG to prevent the adverse effects of cardiopulmonary bypass. The present study was performed to prove beneficial effects of off-pump CABG. Sixty adult patients scheduled for elective CABG were randomly assigned to On-pump group (n=30) or Off-pump group (n=30). Arterial blood samples were drawn before and after the operation (Pre-OP and Post-OP, respectively) for measuring CBC, prothrombin time, activated thromboplastine time, blood gas analysis, creatine kinase-MB (CK-MB) level, and lactate dehydrogenase (LDH) level. Perioperative parameters including heparin and protamine usages, complications, blood components usages, blood loss, ventilation and ICU-staying time, and hospitalization were also evaluated. Platelet count at Post-OP was high in Off-pump group whereas CK-MB and LDH levels were low compared with On-pump group. Off-pump group had significantly lower heparin and protamine usages, lower total leukocyte count, higher hematocrit and hemoglobin levels, less blood loss, lower usages of blood components, shorter ventilation and ICU-staying time, and lower incidence of pleural effusion than On-pump group. Other variables did not significantly differ between two groups. These results showed that Off-pump CABG was a satisfactory technique with less inflammatory reaction, less cardiac damage, less postoperative complications, and less cost.

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The Comparative Study On Scanning Electron Microscopic Findings Of Retrived ePTFE Membrane With Clinical Conditions (제거된 ePTFE 막의 주사전자현미경적 소견과 치주임상상태의 비교연구)

  • Park, Jeong-Min;Choi, Byung-Son;Lee, Seok-Cho;Kim, Hyung-Seop
    • Journal of Periodontal and Implant Science
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    • v.26 no.1
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    • pp.133-142
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    • 1996
  • Ten intrabony defects in 10 patients were treated by flap surgery including root surface debridement and placement of an expanded polytetrafluoroethylene(ePTFE) membrane. The membranes were removed after 4-6 weeks. This study was performed to examine the retrived ePTFE membrane by scanning electron microscopy(SEM) for bacterial contamination and adherent connective tissue elements, and to compare it with clinical conditions. The cervical portion of the membrane, which in most cases had become partially exposed to the oral cavity, had a bacterial deposit. Small bacterial colonies and a scatter of single cells in some instances extended into the apical portion of the membrane. Fibroblast-like cells, erythrocytes and fibrous structures were seen in the apical portion of the membrane. Outer surface of membrane tends to more bacterial contamination than inner surface(p<0.01), and upper portions more than lower portions(P<0.01). Comparison of ultrastructural findings and clinical conditions revealed that extent of bacterial contamination of the membrane correlated with gingival inflammation and extent of membrane exposure, but it was not significant statistically. The results suggested that gingival inflammation and membrane exposure affect periodontal regeneration by the use of ePTFE membrane.

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A Clinical Study of Twenty-five Patients Admitted with Headache (두통(頭痛)을 주소(主訴) 입원한 환자 25명에 관한 임상적(臨床的) 고찰(考察))

  • Kim, Ji-Yun;Hong, Hyun-Woo;Kim, Jae-Yeon;Lee, Sung-Do;Park, Dong-Il;Gam, Chul-Woo
    • The Journal of Internal Korean Medicine
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    • v.25 no.4
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    • pp.34-44
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    • 2004
  • Objective : The purpose of this study is to investigate clinical characteristics with 25 patients who have suffered from headache and were treated. Methods : We classified 25 patients into several groups by IHS classification and evaluated the effects of oriental medical therapy on headache. Results : 1. According to the statistics, instances of migraine were more prevalent than tension headache, especially among women. 2. 28% of patient had entered for treatment within one month of onset. 3. Common associated symptoms included dizziness, nausea, dyspepsia, palpitation and insomnia. 4. In classification by the oriental medical differentiation of symptoms and signs, the rate of stagnation of the humid dam and deficiency of qi, these two types were highest. 5. 56% of patients said they were satisfied with the treatment, reporting half the frequency of headache or better from before treatment. Conclusions : The present results suggest that oriental medical therapy has effects on headache. Further clinical comparative studies on herb-medication versus acupuncture therapy for headache are urged.

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Evaluation of Clinical Use by Comparative Efficacy and Safety Study of Fine Granvles for Upper Gastrointestinal Disorders Including Symptoms (상부 소화관 질환증상에 대한 제산.소화효소제와 생약제를 함유한 복합제제 세립의 유용성)

  • 전형식;김주현;황일순;추현광;박현철;정숙향
    • YAKHAK HOEJI
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    • v.37 no.2
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    • pp.172-181
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    • 1993
  • The purpose of this study was to evaluate the clinical efficacy and safety of NRM which was newly developed as a combination product containing antacids, digestive enzyme and herbal drugs, and OTA powder, called OHTA'S ISAN on the morret, for the treatment of various symptoms in upper gastrointestinal diseases. 63 patients were recruited, 36 as a treated group with NRM and 27 as a controlled one with OTA. Patients were randomly allocated to receive either NRM or OTA t.i.d. for treatment of upper G-1 symptoms and undergone endoscopic, symptomatic and clinical laboratory assessments before and after 2 weeks. The results were as follows; 1. The general improvement rates of subjective symptoms in upper G-1 diseases were observed in 100%(32/32) for NRM and in 92%(23/25) for OTA. 2. The overall effective rates in terms of the symptoms and endoscopic findings were 88.9%(32/36) for NRM and 85.2%(23/27) ,or OTA respectively. 3. In NRM group, no significant side effects by NRM were observed except a mild and transient vomiting in one patient, but in OTA group treatment was discontinued due to nousea in one patient, However, there were no clinically significant changes detected in the laboratory parameters. According to the result of this trial, it is cocluded that NRM was safe and effective and (but not statistically significant) was superior to OTA in the treatment of gastrointestinal diseases caused by gastritis, gastric and duodenal ulcer, functional gastrointestinal disorder, non-ulcer dyspepsia etc.

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The effect of acupuncture on hot flushes : A study protocol of multi-center randomized controlled clinical trial (갱년기 여성의 안면홍조에 대한 침치료 다기관 임상시험 : 프로토콜)

  • Park, Ji-Eun;Oh, Dal-Seok;Kang, Kyung-Won;Kim, Dong-Il;Choi, Sun-Mi
    • Korean Journal of Acupuncture
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    • v.24 no.3
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    • pp.33-45
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    • 2007
  • Background : Hot flushes are general postmenopausal symptoms which about 75% of climacteric women undergo. They affect hotness, perspirations, systemic weakness, panic disorders, insomnia. Acupuncture is effective in alleviating hot flushes in practice. Assessment effectiveness and safety of acupuncture in hot flushes would be needed through multi-center trial. Objectives : Purpose of this study is to develope the protocol of effects of acupuncture on hot flushes, a postmenopausal symptom in climacteric women. Methods & Results : It will be a multi-centered, randomized, sham controlled, comparative trial. It will be performed by Good Clinical Practice after approval of Institutional Review Board. Selection criteria will be set according those of FDA above moderate degree. There will be a notice on concomitant medication, other herbs, dietary supplements. Superficial needling on sham points will be used for control group. Treatment period will be 8 weeks with 12 weeks' follow up. Some questionnaire scale will be used as the primary and secondary outcome. Conclusions : The clinical trials based on this protocol will be performed.

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A Comparative Study of Surgical Treatment in the Ruptured Achilles Tendon: Minimal incision and Open repair (아킬레스건 파열의 수술적 치료 비교: 최소 절개 봉합술과 관혈적 봉합술)

  • Kong, Gyu-Min;Gwak, Heui-Chul;Kim, Jeon-Gyo
    • Journal of Korean Foot and Ankle Society
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    • v.16 no.3
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    • pp.181-189
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    • 2012
  • Purpose: The purpose of this study was to compare and analyse the clinical outcomes of minimal incision repair and open repair in ruptured Achilles tendon. Materials and Methods: We retrospectively analyzed the outcomes of 10 patients with minimal incision repair (group 1) and 19 patients with open repair (group 2) from February 2007 to June 2011. The postoperative clinical evaluations were done by Arner-Lindholm scale, AOFAS score, overall patient's satisfaction and cosmetic satisfaction of scar. Results: There was no statistical difference between two groups in Arner-Lindholm scale, AOFAS score, overall patient's satisfaction (p=1.21, 0.87, 1.07). There was statistically high rate of cosmetic satisfaction in group 1(p<0.001). There were no complications in group 1. Complications occurred in three patients (deep infection, rerupture, deep vein thrombosis) of group 2. Conclusion: Treatment of minimal incision repair in Achilles's tendon ruptures showed high rate of cosmetic satisfaction and low rate of complication's, but there were no significant differences with open repair in other clinical outcomes. The minimal incision repair could be recommended as one of the effective treatment for the Achilles's tendon ruptures.

Review of Clinical Studies on Korean Medicine for Acne Scar (여드름 흉터의 한의학 치료에 대한 국내 임상 연구 동향)

  • Jea, Ha-Kyung;Hwang, Mi-Ri;Ahn, Jae-Hyun;Jung, Hyun-A
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.31 no.2
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    • pp.86-103
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    • 2018
  • Objectives : The purpose of this study is to analyze various Korean medical treatments on acne scar and to propose better methods on clinical studies and effective treatments. Methods : Key word 'Acne Scar', published year '2010-2018' were searched on three domestic database systems (RISS, KISS, NDSL). Results : Among 9 studies, 8 studies were case reports and 1 study was comparative study. The treatment used in 9 studies were acupuncture(Subcision, Microneedle Therapy System, laser), pharmacopuncture, external application, dermabrasion, high frequency therapy. 7 out of 9 studies used more than 2 different treatments. The most popular treatment method was 'subcision', followed by 'MTS'. The most popular methods of assessment was QGASC. All studies using assessment methods measuring the severity of acne scar reported improvement, though only 1 study was proved to be statistically different. 1 study reported the side effect, and other 4 studies reported flushing, itching, pain. Conclusions : This study shows the effectiveness of Korean medical treatment on acne scar. It will be expected to use this various treatments and study methods for treating acne scar with Korean medicine, and conducting further clinical studies with higher credibility and reproducibility.

A comparative study of the clinical effects of PRP and non-absorbable membrane in the treatment of mandibular class II furcations (하악 2급 이개부 병변 치료시 비흡수성 차폐막과 혈소판 농축 혈장의 임상적 효과에 대한 비교 연구)

  • Kim, Chang-Ho;Lim, Sung-Bin;Chung, Chin-Hyung;Hong, Ki-Seok
    • Journal of Periodontal and Implant Science
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    • v.34 no.3
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    • pp.509-522
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    • 2004
  • This study was performed to compare the clinical effectiveness of two regenerative techniques for class II furcation involvements in human: a combination of bone grafts with PRP vs. GTR with bone grafts. The e-PTFE group was treated with non-absorbable membrane and bone grafts, the PRP group was treated with PRP and bone grafts Pocket depth, clinical attachment level, and gingival recession were measured at baseline and postoperative 6 months. Vertical and horizontal furcation depth were measured by re-entry surgeries at 6 months post-treatment Both groups were statistically analyzed by Wilcoxon signed Ranks Test & Mann-whitney Test using SPSS program (5% significance level). The results were as follows: 1. The change of pocket depth, clinical attachment level, vertical furcation depth and horizontal furcation depth in both groups was decreased significantly at 6 months than at baseline. (p<0.05) 2. The change of gingival recession in both groups was increased significantly at 6 months than at baseline. (p<0.05) 3. The change of alveolar crest absorption in both groups was increased at 6 months than at baseline but there were no statistically significant differences. 4. The change of pocket depth, clinical attachment level, vertical furcation depth and horizontal furcation depth in both groups was increased significantly at 6 months, but there were no statistically or clinically significant differences with both groups. 5. The change of gingival recession and alveolar crest absorption in both groups was increased at 6 months, but there were no statistically or clinically significant differences with both groups. In conclusion, the use of bone graft with PRP or GTR technique improved clinical index of the soft and hard tissue in mandibular class II furcation involvement but there were no statistically or clinically significant differences between bone graft with PRP and GTR technique.

A comparative study of clinical effects following treatment of class II furcations using allograft and PR with and without bioabsorbable membrane (2급 이개부 병변을 동종골과 혈소판 농축 혈장으로 치료시 차폐막 사용에 따른 임상적 효과의 비교 연구)

  • Park, Soon-Jae;Lim, Sung-Bin;Chung, Chin-Hyung
    • Journal of Periodontal and Implant Science
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    • v.32 no.3
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    • pp.631-642
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    • 2002
  • The present study evaluated of regeneration effect of platelet rich plasma on the treatment of classII furcation involvement, with allograft in humans. The control was treated without bioabsorbable membrane, and the test was treated with bioabsorbable membrane. Pocket depth, clinical attachment level, and gingival recession were measured at baseline, postoperative 3, 6months. Both groups were statistically analyzed by Wilcoxon signed Ranks Test & Mann-whitney Test using SPSS program (5% significance level). The results were as follows: 1. The change of pocket depth and clinical attachment level in both groups was decreased significantly at 3, 6months.(p<0.05) 2. The change of gingival recession in both groups was increased significantly at 3, 6months than at baseline.(p (0.05) 3. The change of pocket depth and clinical attachment level in both groups was increased significantly at 3, 6months, but there were no statistically or clinically significant differences with both groups. 4. The change of gingival recession in both groups was increased significantly at 3, 6months, but there were no statistically or clinically significant differences with both groups. 5. The significant reduction of the pocket depth and clinical attachment level exhibited marked changes at 3 months in both groups. In conclusion, the results of this study suggest that there are no statistically or clinically significant differences between with and without bioabsorbable membrane on treatment of classII furcations using allograft and PRP