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

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https://www.readbyqxmd.com/read/30019120/correction-to-cerebral-oximetry-for-cardiac-surgery-a-preoperative-comparison-of-device-characteristics-and-pitfalls-in-interpretation
#1
Kensuke Kobayashi, Tadashi Kitamura, Satoshi Kohira, Shinzo Torii, Toshiaki Mishima, Hirotoki Ohkubo, Yuki Tanaka, Akihiro Sasahara, Takuma Fukunishi, Yuki Ohtomo, Rihito Horikoshi, Yuta Murai, Kagami Miyaji
In the original publication, the length unit of the SCD in Table 1 and Fig. 2 has been incorrectly published as cm. The correct length unit is mm.
July 17, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/30006787/the-biocompatibility-and-bioactivity-of-hemodialysis-membranes-their-impact-in-end-stage-renal-disease
#2
REVIEW
Michaela Kohlová, Célia Gomes Amorim, Alberto Araújo, Alice Santos-Silva, Petr Solich, Maria Conceição B S M Montenegro
End-stage renal disease is a growing health problem with increasing prevalence and high health care costs. Patients suffering from end-stage renal disease exhibit higher morbidity and mortality rates compared to the general population. These patients, who are treated using hemodialysis, typically suffer from anemia, inflammation, and oxidative stress. Inadequate dialyzer membrane biocompatibility exacerbates these negative side effects. Modifications of the composition of hemodialysis membranes have improved their biocompatibility and improve the patients' quality of life...
July 14, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29980955/efficient-co-2-removal-using-extracorporeal-lung-and-renal-assist-device
#3
Nozomi Takahashi, Taka-Aki Nakada, Shigeto Oda
We developed a novel system comprising acid infusion, membrane lung, and a continuous renal replacement therapy console for efficient CO2 removal at a low blood flow. To evaluate the new system, we used an ex vivo experimental model using swine blood. A liter of aliquoted blood adjusted to pH 7.25 and pCO2 65 mm Hg was mixed with acid (0, 10, or 20 mL of lactic or hydrochloric acid [1 mol/L]) and was immediately delivered to the system in a single pass. We collected blood samples at each point of the circuit and calculated the amount of CO2 eliminated by the membrane lung...
July 6, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29951931/risk-analysis-using-the-prognostic-nutritional-index-in-hemodialysis-dependent-patients-undergoing-cardiac-surgery
#4
Soki Kurumisawa, Koji Kawahito
The prognostic nutritional index is an effective prognostic tool used in gastrointestinal surgeries. However, its value has not been verified in cardiovascular surgeries. This study aimed to investigate its utility in hemodialysis-dependent patients undergoing cardiac surgery. We retrospectively reviewed data of 110 hemodialysis-dependent patients who underwent cardiac surgery between January 2006 and July 2016. 20 variables were evaluated for short- and long-term mortality prediction. Patients were divided into high and low prognostic nutritional index groups with values > 34 (n = 90) and ≤ 34 (n = 20), respectively...
June 27, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29951930/effect-of-obesity-on-outcomes-in-patients-who-undergo-implantation-of-a-continuous-flow-left-ventricular-assist-device
#5
LETTER
Nastasya Volkovicher, Chitaru Kurihara, Andre C Critsinelis, Masashi Kawabori, Tadahisa Sugiura, Marcos A Manon, Andrew B Civitello, Jeffrey A Morgan
No abstract text is available yet for this article.
June 27, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29943370/single-center-experience-of-the-bridge-to-bridge-strategy-using-the-nipro-paracorporeal-ventricular-assist-device
#6
Shuichi Yoshitake, Osamu Kinoshita, Kan Nawata, Yasuhiro Hoshino, Yoshifumi Itoda, Mitsutoshi Kimura, Haruo Yamauchi, Minoru Ono
Currently, we use the Nipro paracorporeal VAD (p-VAD) for initial short-term ventricular support, as a bridge to decision (BTD) or a bridge to candidacy (BTC) treatment, in Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) levels 1 and 2 patients. However, it is possible that compared to patients with primary implantable-VADs (P-iVAD), the bridge-to-bridge (BTB) patients are more likely to develop complications. This retrospective study used data from 24 consecutive BTB patients who were initially implanted with Nipro p-VAD as BTD or BTC treatments between April 2011 and March 2016, and subsequently underwent conversion to an i-VAD...
June 25, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29938392/efficacy-of-regional-saturation-of-oxygen-monitor-using-near-infrared-spectroscopy-for-lower-limb-ischemia-during-minimally-invasive-cardiac-surgery
#7
Teppei Toya, Tomoyuki Fujita, Satuki Fukushima, Yusuke Shimahara, Yuta Kume, Kizuku Yamashita, Yorihiko Matsumoto, Naonori Kawamoto, Junjiro Kobayashi
Lower limb ischemia with an occlusive cannula is a potential complication of minimally invasive cardiac surgery (MICS). We evaluated intraoperative local oxygen supply-demand balance by monitoring regional saturation of oxygen (rSO2 ) using near-infrared spectroscopy (NIRS), and analyzed the correlation between cannula size and fluctuation range of rSO2 . Fifty-four patients undergoing MICS surgery using femoral artery cannulation from April 2015 to August 2016 were enrolled. The rSO2 of both the cannulated and uncannulated lower limbs were measured using NIRS...
June 25, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29938391/left-ventricular-assist-device-implantation-after-plasma-exchange-for-heparin-induced-thrombocytopenia
#8
Shintaroh Koizumi, Hiroki Kohno, Michiko Watanabe, Togo Iwahana, Takuma Maeda, Shigeki Miyata, Yoshio Kobayashi, Goro Matsumiya
Treating a patient with heparin-induced thrombocytopenia can be challenging particularly when the patient requires urgent cardiac surgery that uses heparin for anticoagulation. We herein report a case of a 61-year-old man with idiopathic dilated cardiomyopathy associated with heparin-induced thrombocytopenia and who underwent plasma exchange to remove heparin-induced thrombocytopenia antibodies before undergoing left ventricular assist device implantation. The surgery was performed using cardiopulmonary bypass and unfractionated heparin...
June 25, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29926240/cerebral-oximetry-for-cardiac-surgery-a-preoperative-comparison-of-device-characteristics-and-pitfalls-in-interpretation
#9
Kensuke Kobayashi, Tadashi Kitamura, Satoshi Kohira, Shinzo Torii, Toshiaki Mishima, Hirotoki Ohkubo, Yuki Tanaka, Akihiro Sasahara, Takuma Fukunishi, Yuki Ohtomo, Rihito Horikoshi, Yuta Murai, Kagami Miyaji
Regional cerebral oximetry using near-infrared spectroscopy devices is commonly used for detecting cerebral ischemia during cardiopulmonary bypass, and aim to avoid poor cerebral perfusion which may result in perioperative neurological impairment. Today, several devices that can detect cerebral ischemia are commercially available. Although these devices operate on the same measurement principles, their algorithms for detecting and calculating cerebral ischemia are different and no criteria for directly comparing values measured by such different devices exist...
June 20, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29860680/rapid-onset-plasma-leakage-of-extracorporeal-oxygenation-membranes-possibly-due-to-hyperbilirubinemia
#10
Yoshiko Kida, Shinichiro Ohshimo, Michihito Kyo, Yuko Tanabe, Kei Suzuki, Koji Hosokawa, Nobuaki Shime
Extracorporeal membrane oxygenation (ECMO) is an emerging tool for supporting cardiopulmonary function in patients with cardiorespiratory failure or arrest. The oxygenator of the ECMO circuit requires effective oxygenation and removal of carbon dioxide from the blood. Major problems that can occur with the oxygenator include plasma leakage, one of the late-onset serious complications necessitating device replacement. However, the rapid onset of plasma leakage is rare. We present a 1-year-old boy with acute respiratory failure due to Pneumocystis and Aspergillus pneumonia...
June 2, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29785544/heartmate-ii-implantation-technique-that-spares-the-sternum-and-ascending-aorta
#11
Masashi Kawabori, Chitaru Kurihara, Tadahisa Sugiura, Andrew B Civitello, Jeffrey A Morgan
Left ventricular assist devices (LVADs) have become the standard therapy for patients with end-stage heart failure, and the use of LVADs for long-term support has grown exponentially over the past decade. As the number of LVAD implantations has increased, surgeons have faced more challenging cases, such as those in which the patient has previously undergone a sternotomy. The HeartMate II is one of the most widely implanted LVADs. The standard procedure for HeartMate II implantation is median sternotomy and sewing the outflow graft to the ascending aorta...
May 21, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29774445/pregnancy-complicated-by-influenza-a-ards-requiring-consecutive-vv-ecmo-treatment-with-successful-vaginal-delivery
#12
Peter Radsel, Vojka Gorjup, Anja Jazbec, Rihard Knafelj, Miha Lucovnik, Gorazd Kavsek, Lilijana Kornhauser Cerar, Marko Noc
A 29-year-old woman presented with influenza A ARDS at 23+0 weeks of gestation. Mechanical ventilation failed and VV-ECMO was started in a non-ECMO hospital. Transportation was performed on ECMO. Within 5 days ECMO weaning was successful. Fetal condition was stable, and decision to continue pregnancy was taken. However, second VV-ECMO was needed due to ventilator-associated pneumonia. At 25+6 weeks, the patient spontaneously delivered a neonate vaginally. Patient's condition improved, and ECMO could be removed 10 days postpartum...
May 17, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29766321/acute-kidney-injury-after-implantation-of-a-left-ventricular-assist-device-a-comparison-of-axial-flow-heartmate-ii-and-centrifugal-flow-heartware-hvad-devices
#13
Azeen Anjum, Chitaru Kurihara, Andre Critsinelis, Masashi Kawabori, Tadahisa Sugiura, Andrew B Civitello, Whitson B Etheridge, Reynolds M Delgado, Leo Simpson, Joggy K George, Ajith P Nair, O H Frazier, Jeffrey A Morgan
Continuous-flow left ventricular assist devices (CF-LVADs) are increasingly being used to treat advanced, refractory chronic heart failure. Herein, we sought to determine the incidence of postoperative acute kidney injury (AKI) in axial-flow (HeartMate II; HM-II) and centrifugal-flow (HVAD) CF-LVAD recipients, as well as the effect of AKI on mortality. The study cohort comprised 520 patients who received a HM-II (n = 398) or HVAD (n = 122) at our center between November 2003 and March 2016. Their records were reviewed to determine the incidence of RIFLE-defined AKI after LVAD implantation...
May 15, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29766320/weaning-from-prolonged-veno-venous-extracorporeal-membrane-oxygenation-ecmo-after-transfer-to-a-specialized-center-a-retrospective-study
#14
Frederik Seiler, Franziska C Trudzinski, Sabrina I Hörsch, Annegret Kamp, Carlos Metz, Monika Flaig, Mohammad Alqudrah, Holger Wehrfritz, Markus Kredel, Ralf M Muellenbach, Hendrik Haake, Robert Bals, Philipp M Lepper
Veno-venous extracorporeal membrane oxygenation (vvECMO) is increasingly used as rescue therapy in severe respiratory failure. In patients with pre-existent lung diseases or persistent lung injury weaning from vvECMO can be challenging. This study sought to investigate outcomes of patients transferred to a specialized ECMO center after prolonged ECMO therapy. We performed a retrospective analysis of all patients admitted to our medical intensive care unit (ICU) between 01/2013 and 12/2016 who were transferred from an external ICU after > 8 days on vvECMO...
May 15, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29761298/lumbar-muscle-atrophy-caused-by-harness-replacement-in-a-chronic-calf-model-of-total-artificial-heart-implantation
#15
Jamshid H Karimov, Kimberly A Such, Raymond Dessoffy, Kiyotaka Fukamachi
The postoperative care of animals implanted with mechanical circulatory support devices is complex. The standard of care requires continuous monitoring of hemodynamic parameters post implant, wound care, and maintenance of the animal's well-being, but also includes controlling the animal's biomechanics under conditions of continuous restraint and harnessing. In such studies, a harness provides secure fixation of the exteriorized device driveline and pressure lines and aids animal handling (lifting, position adjustment, and assistance with standing up)...
May 14, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29752586/comparison-of-tracheal-reconstruction-with-allograft-fresh-xenograft-and-artificial-trachea-scaffold-in-a-rabbit-model
#16
Jae Yeon Lee, Jeong Hun Park, Dong-Woo Cho
This study evaluated the possibility of tracheal reconstruction with allograft, pig-to-rabbit fresh xenograft or use of a tissue-engineered trachea, and compared acute rejection of three different transplanted tracheal segments in rabbits. Eighteen healthy New Zealand White rabbits weighing 2.5-3.1 kg were transplanted with three different types of trachea substitutes. Two rabbits and two alpha 1, 3-galactosyltransferase gene-knockout pigs weighing 5 kg were used as donors. The rabbits were divided into three groups: an allograft control group consisting of rabbit-to-rabbit allotransplantation animals (n = 6), a fresh xenograft group consisting of pig-to-rabbit xenotransplantation animals (n = 6), and an artificial trachea scaffold group (n = 6)...
May 12, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29623488/correction-to-inhalative-sedation-with-small-tidal-volumes-under-venovenous-ecmo
#17
Axel Rand, Peter K Zahn, Thomas A Schildhauer, Christian Waydhas, Uwe Hamsen
In the original publication, the affiliations of fourth and fifth authors were published incorrectly. The corrected affiliations are given in this correction.
June 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29508167/inhalative-sedation-with-small-tidal-volumes-under-venovenous-ecmo
#18
Axel Rand, Peter K Zahn, Thomas A Schildhauer, Christian Waydhas, Uwe Hamsen
BACKGROUND: Inhalative sedation is an emerging method for long-term sedation in intensive care therapy. There is evidence that it is easy to control and may be beneficial compared to intravenous sedation. Yet little is known about the use in patients with compromised lung function. In this retrospective analysis, we searched files of patients receiving inhalative sedation under venovenous extracorporeal membrane oxygenator (vv-ECMO) support due to lung failure. METHODS: After ethical approval, we performed a retrospective analysis of patients receiving vv-ECMO support and inhalative sedation in the surgical ICU in 2015...
June 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29478196/development-of-a-novel-shrouded-impeller-pediatric-blood-pump
#19
Talha Irfan Khan, Haris Sheh Zad, Ismail Lazoglu, Ozlem Yalcin
The aim of this work was to analyze a shrouded impeller pediatric ventricular assist device (SIP-VAD). This device has distinctive design characteristics and parameter optimizations for minimization of recirculation flow and reduction in high-stress regions that cause blood damage. Computational Fluid Dynamics (CFD) simulations were performed to analyze the optimized design. The bench-top prototype of SIP-VAD was manufactured with biocompatible stainless steel. A study on the hydrodynamic and hemodynamic performance of the SIP-VAD was conducted with predictions from CFD and actual experimentation values, and these results were compared...
June 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29426997/transcatheter-heart-valve-for-aortic-valve-implantation-republication-of-the-article-published-in-the-japanese-journal-of-artificial-organs
#20
REVIEW
Hideki Oshima
This review was created based on a translation of the Japanese review first reported in the Japanese Journal of Artificial Organs in 2015 (vol. 44, no. 3, pp. 136-140), with some modifications.
June 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
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