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Nathan Wnuk,Ana Maria Pabon-Martinez,Armeen Mahvash,Gouthami Chintalapani,Thomas A. Aloia,Bruno C. Odisio 소화기인터벤션의학회 2019 Gastrointestinal Intervention Vol.8 No.1
We describe the creation of a percutaneous transhepatic bilioenteric neoanastomosis with the aid of cone-beam computed tomography (CBCT) in a patient suffering from a complicated bile leak after extensive hepatobiliary surgery. Access to the afferent bowel limb was safely performed in a single-stick manner via transhepatic approach with the aid of real-time navigation fluoroscopic imaging generated by CBCT arteriography. CBCT confirmed access of the afferent limb and absence of peri-anastomotic vessel damage, allowing the successful creation of a bilioenteric neoanasto-mosis, resolving the patient’s biliary leak. The patient is alive and asymptomatic at 12-month follow-up, demonstrating patency of the percutaneous bilioenteric neoanastomosis.
Nathan Wnuk,Ana Maria Pabon-Martinez,Armeen Mahvash,Gouthami Chintalapani,Thomas A. Aloia,Bruno C. Odisio 소화기인터벤션의학회 2019 International journal of gastrointestinal interven Vol.8 No.1
We describe the creation of a percutaneous transhepatic bilioenteric neoanastomosis with the aid of cone-beam computed tomography (CBCT) in a patient suffering from a complicated bile leak after extensive hepatobiliary surgery. Access to the afferent bowel limb was safely performed in a single-stick manner via transhepatic approach with the aid of real-time navigation fluoroscopic imaging generated by CBCT arteriography. CBCT confirmed access of the afferent limb and absence of peri-anastomotic vessel damage, allowing the successful creation of a bilioenteric neoanasto-mosis, resolving the patient’s biliary leak. The patient is alive and asymptomatic at 12-month follow-up, demonstrating patency of the percutaneous bilioenteric neoanastomosis.
Nonisentropic Phenomenological Model of a Reciprocating Compressor
Willian Moreira Duarte,Juan Jose Garcia Pabon,Antônio Augusto Torres Maia,LUIZ MACHADO 대한설비공학회 2019 International Journal Of Air-Conditioning and Refr Vol.27 No.4
This paper presents the development of a numerical, iterative and nonisentropic model for the thermodynamic processes of a reciprocating compressor of a refrigeration system operating at steady state. The mathematical model was implemented using the scientific software Engineering Equation Solver (EES) and it is based on the application of the energy equations in four regions of the compressor: inlet duct and chambers of pre-compression, compression, and post-compression. The model was validated with experimental data collected from an open-drive reciprocating compressor, operating with the refrigerant R-134a at different suction and discharge pressures and with different compressor rotational speeds. Model validation was made comparing the values of the mass flow rate and the discharge temperature of the compressor generated by the model with their corresponding experimental values for 33 experimental tests, the mean relative difference was − 0.2% for the discharge temperature and 2.9% for mass flow rate. In this validation, the output variables of the model were calculated considering the uncertainties from the input variables. The theoretical mean standard uncertainty is 2% for discharge temperature and 6% for mass flow rate. An analysis of the capacitive and thermal performance of the compressor was made using the model, which demonstrates a decrease in the capacitive and thermal efficiencies for increasing the pressure ratio or clearance volume.
( Samuel Vilar ),( Jose Manuel Castillo ),( Pedro V. Munuera Martinez ),( Maria Reina ),( Manuel Pabon ) 대한통증학회 2018 The Korean Journal of Pain Vol.31 No.4
Background: One of the most frequent problems caused by diabetes is the so called painful diabetic neuropathy. This condition can be treated through numerous types of therapy. The purpose of this study was to analyze, as a meta-analysis, different treatments used to alleviate painful diabetic neuropathy, with the aim of generating results that help making decisions when applying such treatments to tackle this pathology. Methods: A search was conducted in the main databases for Health Sciences, such as PUBMED, Web of Science (WOS), and IME biomedicina (Spanish Medical Reports in Biomedicine), to gather randomized controlled trials about treatments used for painful diabetic neuropathy. The analyzed studies were required to meet the inclusion criteria selected, especially those results related to pain intensity. Results: Nine randomized controlled trials were chosen. The meta-analysis shows significant positive effects for those treatments based on tapentadol [g: -1.333, 95% CI (-1.594; -1.072), P < 0.05], duloxetine [g: -1.622, 95 % CI (-1.650; -1.594), P < 0.05], pregabalin [g: -0.607, 95% CI (-0.980; -0.325), P < 0.05], and clonidine [g: -0.242, 95 % CI (-0.543; -0.058), P < 0.05]. Conclusions: This meta-analysis indicates the effectiveness of the treatments based on duloxetine, gabapentin and pregabalin, as well as other drugs, such as tapentadol and topic clonidine, whose use is better prescribed in more specific situations. The results provided can help increase the knowledge about the treatment of painful diabetic neuropathy and also in the making of clinical practice guidelines for healthcare professionals. (Korean J Pain 2018; 31: 253-60)