http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Ex Vivo and In Vivo Models for Endoscopic Submucosal Dissection Training
Adolfo Parra-Blanco,Nicolas Gonzalez,Maria Rosa Arnau 대한소화기내시경학회 2012 Clinical Endoscopy Vol.45 No.4
Endoscopic submucosal dissection is a technically challenging but highly effective technique for the treatment of well selected early neoplasms in the digestive tract. Although it is frequently performed in East Asian countries, the Western world has not adopted this technique yet, probably due in part to the difficulty to learn it. Ex vivo and in vivo animal models are invaluable tools to overcome at least the beginning of the learning curve, although the initial step is the acquisition of basic knowledge about early diagnosis of neoplasias, and observing real procedures in expert centers. The practical issues, advantages, and disadvantages of the ex vivo and in vivo models are discussed.
Leverson Beltran Castro,Maria Camila Parra Aldana,Hernando Leon-Rodriguez 제어로봇시스템학회 2022 제어로봇시스템학회 국제학술대회 논문집 Vol.2022 No.11
This article presents the design and implementation of a bioelectronic knee integrated into a transfemoral mechanical prosthesis manufactured in 3D printing. This device is made to improve the human gait cycle in the lifting, rocking, and support phases. For its implementation, control subsystems were integrated for the spatial variables and the conditioning of native muscle signals generated by the contractions of the vastus and biceps of the stump of a patient with trans-femoral amputation. The readings of the position and angular velocity signals were made through an interface adapted to the non-amputated limb as a response pattern. The scope of this article is defined by the reading, monitoring, control, and improvement of knee movements in a bioelectronic prosthesis in the phases of the human gait cycle. Finally, the importance of reducing the cost of the device is highlighted through the optimization of resources, construction materials, and electronic elements, with a low cost value.
Marcano-Caldera, Maytte,Mejia-Cardona, Jose Luis,Blanco-Uribe, Maria del Pilar,Chaverra-Mesa, Elena Carolina,Rodriguez-Lezama, Didier,Parra-Sanchez, Jose Hernan The Korean Academy of Conservative Dentistry 2019 Restorative Dentistry & Endodontics Vol.44 No.2
Objectives: The upper molars generally have three roots; therefore, different combinations of fusion can occur, increasing the possibility of finding more complex root canal systems. The purpose of this study was to evaluate the prevalence and characterization of fused roots in first and second maxillary molars using cone-beam computed tomography (CBCT) in a Colombian population. Materials and Methods: A total of 1274 teeth were evaluated, of which 534 were maxillary first molars and 740 were maxillary second molars. Axial sections were made at the cervical, middle, and apical levels to determine the prevalence of root fusion and the types of fusion. Results: Overall, 43% of the molars (n = 551) presented some type of fused root. Root fusion was present in 23.4% of the maxillary first molars. The most frequent type of fused root was type 3 (distobuccal-palatal; DB-P) (58.9%). Root fusion was observed in 57.6% of the maxillary second molars, and the most prevalent type of fused root was type 6 (cone-shaped) (45.2%). Of the maxillary molars, 12.5% were classified as C-shaped. Conclusion: Within the limitations of this study, there was a high prevalence of fused roots in maxillary molars in the Colombian population, mainly in the maxillary second molars. In first molars, the most common type of fused root was type 3 (DB-P) and in second molars, the most common type was type 6 (cone-shaped). Additionally, molars with root fusion presented variation at different levels of the radicular portion, with implications for treatment quality.
Musial Diego Castro,de Carvalho Alexia Juvencio,Vitela Alberto Parra,Schiochet Vinicius Jose Costa,de Lima Assef Maria da Graça Pasquotto 대한내분비외과학회 2023 The Koreran journal of Endocrine Surgery Vol.23 No.1
Insulinoma is a very rare neuroendocrine tumor that causes hypoglycemia and neuroglycopenic symptoms. Initial diagnostic imaging tests include ultrasound, computed tomography and magnetic resonance imaging. In most cases surgical treatment of insulinoma results in complete recovery. In this paper we described a rare case of insulinoma misdiagnosed with schizophrenia.
Aldo Izaguirre,Arantza Govela,Ismael Delgado,Carlos Mateos Troncoso,Maria Parra,Enrique Alvarez Viana 대한외과학회 2018 Annals of Surgical Treatment and Research(ASRT) Vol.95 No.1
Purpose: Nosocomial infections account for one of the most serious complications in hospitalized patients around the world. Surgical site infections have significant economic implications, and surgical antisepsis plays an important role in such processes. Methods: With prior approval by the Institutional Review Board and informed consent, 10 volunteers were randomly assigned to 3 protocols on hand antisepsis: protocol A (chloroxylenol 3%), protocol B (benzalkonium chloride at 1%), and protocol C (ethyl alcohol 61%, 1% chlorhexidine gluconate). Smears from both hands were cultured after each hand protocol (t0) and at the end of suturing (t1). Colony forming units were counted (CFUs on blood agar dishes) with digital counting software (Open CFU). Friedman test was used to compare the mean values among the groups, and a Bonferroni correction was made to determine the dissimilar group, with a P = 0.015. Results: At t0 for protocol A the CFU count was 82.8 ± 1.3; protocol B was 9.7 ± 30; protocol C was 0.1 ± 0.3 (P < 0.001). At t1 for protocol A the CFU was 80.7 ± 89.4; protocol B was 7.5 ± 32; protocol C was 0.0 ± 0.0 (P < 0.001). No adverse events were present among the subjects. Conclusion: Ethyl alcohol at 61% with 1% chlorhexidine gluconate showed higher efficacy than the traditional washing antiseptics.