• Title/Summary/Keyword: Bleeding

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Influence of Environment and Construction Factor on the Bleeding of Concrete (콘크리트의 블리딩에 미치는 환경 및 시공요인의 영향)

  • 황인성;김기정;나운;김규동;한천구
    • Proceedings of the Korea Concrete Institute Conference
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    • 2003.05a
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    • pp.65-68
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    • 2003
  • This study is intended to look into the influence of environment and construction factor on bleeding of concrete. According to the results, as wind is light, relative humidity is high and temperature is low, the amount of bleeding increases greatly, and evaporation speed is influenced greatly by order of wind, temperature and humidity. As the properties of bleeding by construction factor, the amount of bleeding increases with an increase of placing thickness, but the bleeding ratio, the amount of bleeding per unit volume, increases with a decrease of the placing thickness. Bleeding speed is fastest at about 90 minute after placing concrete. Also, as wind is light, relative humidity is high, temperature is low and the placing thickness is thick, bleeding speed grow faster.

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Neonatal Coagulation Disorder: Diagnostic Approaches for Bleeding Neonates (신생아 혈액 응고질환: 출혈 경향을 보이는 신생아에 대한 진단적 접근)

  • Kim, Chun-Soo
    • Neonatal Medicine
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    • v.18 no.1
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    • pp.6-13
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    • 2011
  • All newborn infants with clinically significant bleeding should be evaluated for a hemostatic deficit. Medical history should include the following data: familial bleeding disorders, maternal illness and medication, age of bleeding onset, and prophylactic administration of vitamin K. The first essential step for evaluating bleeding neonates is determining whether the baby is sick or well. The physician should also evaluate the extent of the bleeding, features of bleeding lesions, and other abnormal findings from the physical examination. Skeletal anomalies may provide diagnostic clues. Depending on the clinical features and results of screening tests, other tests including coagulation factors may be useful for determining the diagnosis. All laboratory results must be considered in the context of age-related reference values. The platelet function analyzer provides a promising alternative to bleeding time. Fibrin degradation products and D-dimers are used for screening and specially testing fibrinolytic activity, respectively. The Apt test may help to rule out factors derived from maternal blood. Radiologic imaging studies are important because asymptomatic intracranial hemorrhages are common in neonates.

Detection of Active Intra-Abdominal Bleeding from Malignant Tumors in Two Dogs Using Contrast-Enhanced Ultrasonography

  • Nam, Jihye;Hwang, Jaewoo;Youn, Hwayoung;Choi, Mincheol;Yoon, Junghee
    • Journal of Veterinary Clinics
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    • v.37 no.6
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    • pp.355-359
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    • 2020
  • Contrast-enhanced ultrasonography (CEUS) has been applied to evaluate parenchymal organs in human and veterinary medicine. However, to our knowledge, there is no report on the identification of active bleeding and the bleeding site in veterinary clinical patients. Herein, we describe the use of CEUS in two cases of abdominal bleeding caused by ruptured lesions with malignant abdominal tumors. One dog had a splenic hemangiosarcoma, which had metastasized to the liver; the other dog had hepatic cell carcinomas in the left hepatic lobe, which were lobectomized, and another nodule was identified in the right hepatic lobe. Immediately after the rupture of these oncogenic lesions was suspected, CEUS was performed to identify the bleeding sites. The active bleeding sites were confirmed by hyperechoic pooling signs in the arterial phase, and extravasation could be observed within the defects showing hypoechoic perfusions in the delayed phase of the CEUS. Microbubbles were also observed in the ascites; thus, CEUS could detect the presence of hemorrhage and accurately identify the bleeding site. Collectively, the study findings suggest the usefulness of CEUS in emergent situations as it enables rapid and noninvasive evaluation of bleeding points in case of active bleeding in dogs.

A CLINICAL STUDY ON THE EMERGENCY PATIENTS WITH ACTIVE ORAL BLEEDING (구강내 과다출혈로 내원한 응급환자에 관한 임상적 연구)

  • Yoo, Jae-Ha;Kang, Sang-Hoon;Kim, Hyun-Sil;Kim, Jong-Bae
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.28 no.5
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    • pp.383-389
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    • 2002
  • This is a retrospective study on emergency patients with active oral bleeding. The study was based on a series of 135 patients treated as emergency patients at Wonju Christian Hospital, from Jan. 1, 1997, to Dec. 31, 2001. The postoperative bleeding was the most frequent cause of active oral bleeding in emergency room and bleeding from trauma and medically compromised (bleeding disorders) patients were next in order of frequency. In the injury of maxillofacial vessels, peak incidence was occurred in the inferior alveolar vessel (42.9%), followed by the submucosal vessel of lip & cheek, the superior alveolar vessel, and sublingual vessels. The most common disease of bleeding disorders was vascular wall alteration (infection, etc), followed by liver disease, thrombocytopenic purpura, anti-coagulation drugs in order. In the characteristics of dental diseases on bleeding disorders, periodontal disease and alveolar osteitis (osteomyelitis) were more common. The hemostasis was most obtained by use of wound suture, simple pressure dressing, drainage for infection control and primary interdental wiring of fracture. In the complication group, the infrequent incidence was showed in vomiting, hypovolemic shock, syncope, recurred bleeding & aspiration pneumonia. In the uncontrolled oral bleeding, the injured vessels were suspected as skull base & ethmoidal vessels. In this study, authors found that the close cooperation between the dentistry (Oral and maxillofacial surgery) and the medicine (emergency & internal medicine) was the most important for early proper control of active oral bleeding. And then post-operative wound closure, drainage for infection control and previous systemic evaluation of bleeding disorders were critical for the prevention of postoperative bleeding in the local dental clinic.

Diagnosis and Treatment of Bleeding Meckel's Diverticulum (출혈성 메켈게실의 진단 및 치료)

  • Huh, Young-Soo;Kim, Bum-Ryul;Yun, Jung-Hoon;Kwack, Dong-Min
    • Advances in pediatric surgery
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    • v.7 no.1
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    • pp.42-45
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    • 2001
  • The major complications of Meckel's diverticulum (MD) are bleeding, intestinal obstruction, infection, umbilical fistula and perforation. Although the relative incidences vary between authors, bleeding is the most common complication in children. The aim of our study is to show the symptomatic guideline for the diagnosis of the bleeding MD. Eight cases with bleeding MD which were operated upon at the department of Pediatric Surgery, Yeungnam University Hospital from April 1985 to April 2001 were reviewed. Half of the patients were under 2 years of age and all patient s we re male. All patients were preoperatively diagnosed by previous history of intestinal bleeding (melena, hematochezia) and 99mTc pertechnetate MD scan. Segmental resection and end-to-end anastomosis was performed in 6 patients and diverticulectomy in 2 patients. Heterotropic gastric mucosa was found in 6 patients. Postoperative complication was not observed in any cases. In conclusion, in any male children with obscure intestinal bleeding, especially less than 2 years of age, bleeding MD must be suspected. It seems to us that 99mTc pertechnetate MD scan is a useful tool to diagnose bleeding MD.

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Influence of Unit Water and Viscosity Agents Contents on the Bleeding of Concrete (단위수량 및 증점제량이 콘크리트의 블리딩에 미치는 영향)

  • 김은호;심보길;황인성;전충근;한천구
    • Proceedings of the Korea Concrete Institute Conference
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    • 2001.11a
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    • pp.232-328
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    • 2001
  • This paper investigates the influences of water content and viscosity agent on the bleeding of concrete. According to test results, fluidity shows decline tendency as water content decreases, and dosage of viscosity agent increases. PEO viscosity agent does not affect the air contents while, MC viscosity agent causes air loss. As for bleeding, bleeding decreases with decrease of water content. As dosage of viscosity agent increase, bleeding decreases, regardless of viscosity kinds. It is thought that viscosity agents have the favorable effect of reducing bleeding, if fluidity and air loss are improved.

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Practical Approach of Rectal Bleeding in Children (진료실에서 유용한 혈변 환자에 대한 접근)

  • Kim, Jae Young
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.11 no.sup1
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    • pp.15-22
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    • 2008
  • Rectal bleeding is a common and worrisome problem in pediatric practice. The condition is usually alarming to patient and children. Although most cases are benign and self-limited, sometimes serious pathology also present in this manner. And severe rectal bleeding necessitates prompt diagnostic notice and appropriate treatment. The etiologies of rectal bleeding are somewhat specific to certain age group in children. Accurate history and through physical examination are paramount importance to help differentiate of the diverse etiologies causing rectal bleeding in children. This review describes patterns of rectal bleeding, historical and physical aspect, differentiation of clinical characteristics of rectal bleeding according to etiology, and diagnostic investigations.

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A Fundamental Study on the Development of AE Water Reducing Agent for Reduction of Bleeding (블리딩 저감용 AE감수제 개발에 관한 기초적 연구)

  • 문학용;김한준;김규용;신동인;한천구
    • Proceedings of the Korea Concrete Institute Conference
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    • 2003.05a
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    • pp.75-78
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    • 2003
  • This study is to investigate the probability to develop the AE Water-reducing agent which can decrease the bleeding by mixing melamine type super-plasticizer(SP) and methyl cellulose(MC) viscosity agent. According to the result, as the mixing ratio of melamine type SP and MC viscosity agent increases, the bleeding is reduced due to a increase of the air content. When the mixing ratio of melamine type SP and MC viscosity agent is 1:2 and 1;3 at the water content of 165kg/$m^3$ and 175kg/$m^3$ respectively, slump and air content are satisfied and bleeding is reduced to some extent, so this is determined as the mixing ratio of AE water reducing agent for reduction of bleeding. It is prove that the developed AE water reducing agent for reduction of bleeding can reduce the amount of bleeding and prohibit the plastic shrinkage crack by slowing down the bleeding speed. Compressive strength of hardened concrete does not make any difference in comparison with plain concrete.

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Splenic Artery Bleeding into the Extraperitoneal Space Mimicking Mesenteric Injury: A Rare Case of Blunt Trauma

  • Seo, Sang Hyun;Jung, Hyun Seok;Park, Chan Yong
    • Journal of Trauma and Injury
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    • v.34 no.2
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    • pp.141-145
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    • 2021
  • Splenic injury is a common result of blunt trauma, and bleeding occurs mainly inside the splenic capsule and may leak into the peritoneal space. Herein, we report a case where active bleeding occurred in the splenic artery and only leaked into the extraperitoneal space. This is the first case of this phenomenon in a trauma patient in the English-language literature. Bleeding passed through the peritoneum, leaked into the anterior pararenal space, and continued along the extraperitoneal space to the prevesical space of the pelvis. Therefore, on the initial computed tomography (CT) scan, the bleeding appeared to be in the left paracolic gutter, so we suspected mesenteric bleeding. However, after the CT series was fully reconstructed, we accurately read the scans and confirmed splenic injury with active bleeding. If there had been a suspicion of bowel or mesenteric injury, surgery would have been required, but fortunately surgery could be avoided in this case. The patient was successfully treated with angioembolization.

A Study on Korean Medical Treatment of Abnormal Uterine Bleeding - Based on Benglou Chapters of Classical Medical Texts - (비정상 자궁 출혈의 한약 치료에 대한 연구 - 제반 한의학 문헌의 붕루문을 중심으로 -)

  • Kim Yeon-Tae
    • Journal of Korean Medical classics
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    • v.36 no.4
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    • pp.41-54
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    • 2023
  • Objectives : To examine Korean Medical treatment of abnormal uterine bleeding in classical texts, along with their clinical applicability. Methods : The Benglou chapters in the Donguibogam, Fuqingzhunuke, Xuezhenglun were examined in terms of diagnostic pattern and treatment. Benglou chapters of other medical texts were referenced as well. Basic Korean Medical knowledge of abnormal uterine bleeding and its clinical application were studied. Results : As abnormal uterine bleeding is generally caused by internal damage or deficiency from excessive labor, sexual activity, food, emotional stress, specific causes for each individual should be considered when approaching each case. Conclusions : Korean Medical treatment allows for a tailored approach to each pathology according to age and duration of illness, and has strength in dealing with various situations such as emergency situations, excessive bleeding, blood stagnation. As such, application of Korean Medicine in abnormal uterine bleeding is highly appropriate.