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Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs

journal
https://www.readbyqxmd.com/read/28197736/journal-of-artificial-organs-2016-the-year-in-review-journal-of-artificial-organs-editorial-committee
#1
REVIEW
Y Sawa, G Matsumiya, K Matsuda, E Tatsumi, T Abe, K Fukunaga, S Ichiba, A Kishida, K Kokubo, T Masuzawa, A Myoui, M Nishimura, T Nishimura, T Nishinaka, E Okamoto, S Tokunaga, T Tomo, T Tsukiya, Y Yagi, T Yamaoka
No abstract text is available yet for this article.
February 14, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28181076/visual-evoked-potential-in-rcs-rats-with-okayama-university-type-retinal-prosthesis-ourep%C3%A2-implantation
#2
Alamusi, Toshihiko Matsuo, Osamu Hosoya, Tetsuya Uchida
Photoelectric dye-coupled polyethylene film, designated Okayama University type-retinal prosthesis or OUReP™, generates light-evoked surface electric potentials and stimulates neurons. The dye-coupled films or plain films were implanted subretinally in both eyes of 10 Royal College of Surgeons rats with hereditary retinal dystrophy at the age of 6 weeks. Visual evoked potentials in response to monocular flashing light stimuli were recorded from cranially-fixed electrodes, 4 weeks and 8 weeks after the implantation...
February 8, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28161817/curative-surgery-for-gastric-cancer-in-a-patient-with-an-implantable-left-ventricular-assist-device
#3
Yuki Nakamura, Koichi Toda, Teruya Nakamura, Shigeru Miyagawa, Yasushi Yoshikawa, Satsuki Fukushima, Shunsuke Saito, Daisuke Yoshioka, Keitaro Domae, Tsuyoshi Takahashi, Tadayoshi Hashimoto, Yuichiro Doki, Yoshiki Sawa
The number of patients with end-stage heart failure treated by a left ventricular assist device (LVAD) is dramatically increasing, because the LVAD has been widely accepted for its clinical results. According to the initiation of destination therapy, the prevalence of malignancy in patients with an LVAD is estimated to increase. In patients with LVADs, abdominal surgery for visceral malignancy is associated with technical difficulties because of the presence of an LVAD pump or the driveline which is located transversely in the preperitoneal space...
February 4, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28084568/technical-characterization-of-dialysis-fluid-flow-and-mass-transfer-rate-in-dialyzers-with-various-filtration-coefficients-using-dimensionless-correlation-equation
#4
Makoto Fukuda, Kengo Yoshimura, Koki Namekawa, Kiyotaka Sakai
The objective of the present study is to evaluate the effect of filtration coefficient and internal filtration on dialysis fluid flow and mass transfer coefficient in dialyzers using dimensionless mass transfer correlation equations. Aqueous solution of vitamin B12 clearances were obtained for REXEED-15L as a low flux dialyzer, and APS-15EA and APS-15UA as high flux dialyzers. All the other design specifications were identical for these dialyzers except for filtration coefficient. The overall mass transfer coefficient was calculated, moreover, the exponents of Reynolds number (Re) and film mass transfer coefficient of the dialysis-side fluid (k D) for each flow rate were derived from the Wilson plot and dimensionless correlation equation...
January 13, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28054177/factors-associated-with-a-low-initial-cerebral-oxygen-saturation-value-in-patients-undergoing-cardiac-surgery
#5
Kensuke Kobayashi, Tadashi Kitamura, Satoshi Kohira, Shinzo Torii, Tetsuya Horai, Mitsuhiro Hirata, Toshiaki Mishima, Koichi Sughimoto, Hirotoki Ohkubo, Yusuke Irisawa, Takuya Matsushiro, Hidenori Hayashi, Yurie Miyata, Yuta Tsuchida, Naoki Ohtomo, Kagami Miyaji
Regional cerebral oximetry using near-infrared spectroscopy device, an INVOS 5100 C (Medtronic, Minneapolis, MN, USA), during cardiac surgery aims to avoid perioperative neurological impairment, especially during cardiopulmonary bypass. However, it is not uncommon to encounter critically low initial cerebral regional oxygen saturation or a low value unresponsive to intervention. Therefore, it is important to identify factors associated with low saturation value other than true cerebral hypoxia. We investigated the relationship between preoperative regional cerebral oxygen saturation and clinical variables during cardiac surgery...
January 4, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27933398/ecmo-for-intractable-status-asthmaticus-following-atracurium
#6
Vittorio Scaravilli, Giacomo Grasselli, Annalisa Benini, Michela Bombino, Daniele Ceriani, Uta Emmig, Alberto Zanella, Nicolò Patroniti, Antonio Pesenti
Intraoperative allergic reactions are rare but serious events associated with increased morbidity and mortality. We report the salvage of intraoperative anaphylaxis leading to extreme hypercapnic respiratory failure by veno-venous extracorporeal membrane oxygenation (ECMO). A 38-year-old woman undergoing thyroidectomy developed intractable bronchospasm after administration of atracurium, leading to extreme hypercapnic respiratory failure (PaCO2 > 250 mmHg, pH 6.773). After the failure of conventional medical therapy and ventilatory optimization, the patient was connected to a veno-venous ECMO circuit...
December 8, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27909839/biventricular-support-using-a-centrifugal-pump-in-a-6%C3%A2-year-old-with-fulminant-myocarditis
#7
Hiromu Kehara, Tamaki Takano, Takamitsu Terasaki, Kenji Okada
We experienced a case of ventricular assist with both a pulsatile-flow and a continuous-flow pump in a pediatric patient, and herein report the clinical course and characteristics of the pumps. A 6-year-old female was diagnosed with fulminant myocarditis and transferred to our hospital for mechanical support. After 12 days of extracorporeal membrane oxygenation, we implanted a left ventricular assist device (LVAD) and a right ventricular assist device (RVAD) using centrifugal Gyro pumps with a membrane oxygenator in a paracorporeal fashion...
December 1, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27909838/erratum-to-impact-of-varied-center-volume-categories-on-volume-outcome-relationship-in-children-receiving-ecmo-for-heart-operations
#8
Mallikarjuna Rettiganti, Paul M Seib, Michael J Robertson, Andrew Wilcox, Punkaj Gupta
No abstract text is available yet for this article.
December 1, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27904968/outcome-measures-of-extracorporeal-life-support-ecls-in-trauma-patients-versus-patients-without-trauma-a-7-year-single-center-retrospective-cohort-study
#9
Christopher Ull, Thomas A Schildhauer, Justus T Strauch, Justyna Swol
This single-center retrospective study included a total of 99 extracorporeal life support (ECLS) cannulated patients assigned to a traumatic extracorporeal life-support cohort (TECLS) or a non-traumatic extracorporeal life-support cohort (NTECLS). Forty-nine TECLS patients and 50 NTECLS patients were compared. The TECLS patients were significantly younger [49.9 years 16.6-86.2 vs. 57.1 (21.4-78.6); p = 0.007] and had lower body mass indices (BMIs) [27.7 kg/m(2) (20-37) vs. 32.5 (19-88.5); p = 0.001] than the NTECLS patients...
November 30, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27896500/differences-in-the-adsorption-of-nafamostat-mesilate-between-polyester-polymer-alloy-and-polysulfone-membranes
#10
Sawako Goto, Susumu Ookawara, Akihiko Saito
We previously experienced severe clot formation in a polyester-polymer alloy (PEPA) dialyzer and hemodialysis (HD) circuit with nafamostat mesilate (NM) as an anticoagulant. The possibility of NM adsorption to the PEPA membrane was taken into consideration, but there was not enough information. In the present study, we evaluated differences in the adsorption of NM between a PEPA membrane (FDX-120 GW, Nikkiso, Tokyo, Japan) and two different polysulfone membranes (FX-140, Fresenius Medical Care, Tokyo, Japan; NV-15U, Toray Medical, Tokyo, Japan)...
November 28, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27507585/successful-management-of-apical-abscess-after-nipro-left-ventricular-assisted-device-explantation-by-removal-of-apical-cuff-and-omentopexy
#11
Shuichi Yoshitake, Yoshifumi Itoda, Kan Nawata, Tomoyuki Iwase, Yasuhiro Hoshino, Mitsutoshi Kimura, Osamu Kinoshita, Haruo Yamauchi, Minoru Ono
Nipro-Toyobo-paracorporeal pulsatile flow VAD (Nipro VAD; Nipro, Osaka, Japan) has been used most commonly as a paracorporeal VAD (p-VAD) in Japan. There are few reports describing clinical course of post LVAD explantation and its complication. We herein present two cases of apical abscess after the explantation of the device. SSI is a main risk factor of formation of the apical abscess at the time of LVAD explantation. It is mandatory to perform sufficient debridement and closure of the layers including abdominal muscle and anterior abdominal fascia at exit sites in the explantation surgery...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27436098/combination-of-ecmo-and-cytokine-adsorption-therapy-for-severe-sepsis-with-cardiogenic-shock-and-ards-due-to-panton-valentine-leukocidin-positive-staphylococcus-aureus-pneumonia-and-h1n1
#12
N J Lees, Ajp Rosenberg, A I Hurtado-Doce, J Jones, N Marczin, M Zeriouh, A Weymann, A Sabashnikov, A R Simon, A F Popov
Sepsis-induced cardiogenic shock in combination with severe acute respiratory failure represents a life-threatening combination that is often refractory to the conventional methods of treatment. We describe the case of a 33-year-old patient who developed acute cardiovascular collapse and ARDS secondary to superinfection of Panton-Valentine leukocidin-positive Staphylococcus aureus and H1N1 pneumonia who underwent successful combination therapy for severe sepsis-related cardiomyopathy and respiratory failure using extracorporeal membrane oxygenation and cytokine adsorption therapy...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27430944/a-delayed-splenic-rupture-after-transcatheter-arterial-embolization-required-total-splenectomy-in-a-patient-with-an-implantable-left-ventricular-assist-device
#13
Hiroto Kitahara, Kan Nawata, Osamu Kinoshita, Yoshifumi Itoda, Mitsutoshi Kimura, Haruo Yamauchi, Minoru Ono
We successfully managed a splenic injury and delayed splenic rupture in a patient with an implantable left ventricular assist device (iLVAD). A 42-year-old man with an iLVAD for idiopathic dilated cardiomyopathy was admitted to our department complaining of dizziness. Laboratory data showed severe anemia, and computed tomography demonstrated a traumatic splenic injury. Following conservative treatment, partial splenic embolization was performed. Fifteen days after the intervention, the patient went into hemorrhagic shock due to delayed splenic rupture...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27411710/continuous-plasma-perfusion-of-dual-cartridges-in-series-rationale-and-early-clinical-experience
#14
Liang Sun, Peng-Bo Yan, Yu-Hua Zhang, Lu-Qing Wei, Guo-Qiang Li
To improve the efficiency of plasma perfusion on eliminating plasma paraquat (PQ), we designed continuous plasma perfusion of dual cartridges in series (CPPDCS) on Diapact Braun CRRT machine. The goals of this study were to evaluate the effective of CPPDCS on paraquat removal in patients with acute paraquat intoxication. Our results show that the PQ clearance rate of dual cartridges was significantly higher than that of single cartridge at 1st, 2nd, 3(rd), and 4th plasma perfusion. Compared with single-cartridge plasma perfusion, CPPDCS significantly reduced the frequency of cartridge replacement, shorten the time of perfusion...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27401710/a-successful-management-of-infection-of-the-left-ventricular-assist-device-by-pump-exchange-conversion-from-duraheart-to-jarvik-2000
#15
Shun Tanaka, Kan Nawata, Hiroto Kitahara, Shuichi Yoshitake, Takahiro Matsuoka, Yoshifumi Itoda, Osamu Kinoshita, Mitsutoshi Kimura, Minoru Ono
We successfully controlled infection of a left ventricular assist device by performing pump exchange. A 53-year-old man was implanted with DuraHeart for ischemic cardiomyopathy as a bridge to transplantation. Two years later, he was hospitalized with the diagnosis of driveline infection. The blood cultures detected Pseudomonas aeruginosa. During the admission, he developed brain hemorrhage perhaps due to septic emboli. The chest computed tomography scan revealed a small defect inside the outflow graft of the DuraHeart, which was highly suspected of vegetation...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27389012/platelet-rich-plasma-stimulates-human-dermal-fibroblast-proliferation-via-a-ras-dependent-extracellular-signal-regulated-kinase-1-2-pathway
#16
Tomoya Hara, Natsuko Kakudo, Naoki Morimoto, Takeshi Ogawa, Fangyuan Lai, Kenji Kusumoto
Platelet-rich plasma (PRP) contains a high concentration of several growth factors and contributes to soft-tissue engineering and wound healing. However, the effect of PRP on human dermal fibroblast proliferation and responses is unknown. This was investigated in the present study using PRP prepared from the whole human blood using the double-spin method. Human dermal fibroblast cultures were established from skin samples collected during plastic surgery. Platelet concentration and growth factor levels in PRP were estimated, and a cell proliferation assay was carried out after PRP treatment...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27379506/graft-placement-with-an-omental-flap-for-ruptured-infective-common-iliac-aneurysm-in-a-patient-with-a-continuous-flow-left-ventricular-assist-device-alternative-surgical-approach-avoiding-driveline-injury-and-pathogen-identification-by-16s-ribosomal-dna-gene
#17
Masatoshi Akiyama, Yukihiro Hayatsu, Ko Sakatsume, Hidenori Fujiwara, Takuya Shimizu, Daijirou Akamatsu, Risako Kakuta, Yoshiaki Gu, Mitsuo Kaku, Kiichiro Kumagai, Shunsuke Kawamoto, Hitoshi Goto, Noriaki Ohuchi, Yoshikatsu Saiki
Patients supported by mechanical circulatory support have to wait for longer periods for heart transplantation in Japan. Infective events are a major complication and influence survival. Here, we present the case of a patient with an implantable left ventricular assist device for 6 months who had the complication of ruptured infective common iliac aneurysm. Graft placement with an omental flap was successfully performed via the alternative surgical approach to avoid percutaneous driveline injury. In samples of aortic specimens, 16S ribosomal DNA gene analysis identified Helicobacter cinaedi...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27370698/properties-of-a-monopivot-centrifugal-blood-pump-manufactured-by-3d-printing
#18
Masahiro Nishida, Takumi Negishi, Daisuke Sakota, Ryo Kosaka, Osamu Maruyama, Toru Hyakutake, Katsuyuki Kuwana, Takashi Yamane
An impeller the same geometry as the impeller of a commercial monopivot cardiopulmonary bypass pump was manufactured using 3D printing. The 3D-printed impeller was integrated into the pump casing of the commercially available pump to form a 3D-printed pump model. The surface roughness of the impeller, the hydraulic performance, the axial displacement of the rotating impeller, and the hemolytic properties of the 3D-printed model were measured and compared with those of the commercially available model. Although the surface roughness of the 3D-printed model was significantly larger than that of the commercially available model, the hydraulic performance of the two models almost coincided...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27312839/daily-nursing-care-on-patients-undergoing-venous-venous-extracorporeal-membrane-oxygenation-a-challenging-procedure
#19
Sara Redaelli, Alberto Zanella, Manuela Milan, Stefano Isgrò, Alberto Lucchini, Antonio Pesenti, Nicolò Patroniti
Daily nursing in critical care patients may alter vital parameters, especially in the most critically ill patients. The aim of our study was to evaluate feasibility and safety of daily nursing on patients undergoing venous-venous extracorporeal membrane oxygenation (vv-ECMO) for severe respiratory failure. Daily nursing was performed following defined phases (sponge bath, elevation with scooping stretcher, change position of endotracheal tube, dressing replacement). We recorded physiological and ECMO parameters before and during daily nursing in 5 patients for several days (total: 25 daily nursing) and adverse events: desaturation, hypertension, reduction of mixed venous oxygen saturation, arterial oxygen saturation or ECMO blood flow and elevation in minute ventilation...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/27256363/numerical-simulation-of-blood-flow-in-femoral-perfusion-comparison-between-side-armed-femoral-artery-perfusion-and-direct-femoral-artery-perfusion
#20
COMPARATIVE STUDY
Shingo Kitamura, Minori Shirota, Wakako Fukuda, Takao Inamura, Ikuo Fukuda
Computational numerical analysis was performed to elucidate the flow dynamics of femoral artery perfusion. Numerical simulation of blood flow was performed from the right femoral artery in an aortic model. An incompressible Navier-Stokes equation and continuity equation were solved using computed flow dynamics software. Three different perfusion models were analyzed: a 4.0-mm cannula (outer diameter 15 French size), a 5.2-mm cannula (18 French size) and an 8-mm prosthetic graft. The cannula was inserted parallel to the femoral artery, while the graft was anastomosed perpendicular to the femoral artery...
December 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
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