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Pérez-Blanco A, Acevedo M, Padilla M, Gómez A, Zapata L, Barber M, Martínez A, Calleja V, Rivero MC, Fernández E, Velasco J, Flores EM, Quindós B, Rodríguez ST, Virgós B, Robles JC, Nebra AC, Moya J, Trenado J, García N, Vallejo A, Herrero E, García Á, Rodríguez ML, García F, Lara R, Lage L, Gil FJ, Guerrero FJ, Meilán Á, Del Prado N, Fernández C, Coll E, Domínguez-Gil B. Assessing Outcomes of Patients Subject to Intensive Care to Facilitate Organ Donation: A Spanish Multicenter Prospective Study. Transpl Int 2024; 37:12791. [PMID: 38681973 PMCID: PMC11046399 DOI: 10.3389/ti.2024.12791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 03/19/2024] [Indexed: 05/01/2024]
Abstract
Intensive Care to facilitate Organ Donation (ICOD) consists of the initiation or continuation of intensive care measures in patients with a devastating brain injury (DBI) in whom curative treatment is deemed futile and death by neurological criteria (DNC) is foreseen, to incorporate organ donation into their end-of-life plans. In this study we evaluate the outcomes of patients subject to ICOD and identify radiological and clinical factors associated with progression to DNC. In this first prospective multicenter study we tested by multivariate regression the association of clinical and radiological severity features with progression to DNC. Of the 194 patients, 144 (74.2%) patients fulfilled DNC after a median of 25 h (95% IQR: 17-44) from ICOD onset. Two patients (1%) shifted from ICOD to curative treatment, both were alive at discharge. Factors associated with progression to DNC included: age below 70 years, clinical score consistent with severe brain injury, instability, intracranial hemorrhage, midline shift ≥5 mm and certain types of brain herniation. Overall 151 (77.8%) patients progressed to organ donation. Based on these results, we conclude that ICOD is a beneficial and efficient practice that can contribute to the pool of deceased donors.
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Gisbert-González J, Briega-Martos V, Vidal-Iglesias FJ, Cuesta Á, Feliu JM, Herrero E. Spectroelectrochemical Studies of CTAB Adsorbed on Gold Surfaces in Perchloric Acid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2761-2770. [PMID: 36753691 PMCID: PMC9948534 DOI: 10.1021/acs.langmuir.2c03226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/30/2023] [Indexed: 06/18/2023]
Abstract
The behaviour of CTAB adsorbed on polycrystalline gold electrodes has been studied using a combination of spectroelectrochemical methods. The results indicate that the formation of the layer is the consequence of the precipitation of the CTAB micelles on the electrode surface as bromide ions, which stabilize the micelles, are replaced by perchlorate anions. This process leads to the formation of CTA+ layers in which perchlorate ions are intercalated, in which the adlayer suffers a continuous rearrangement that leads to the formation of micro-dominions of different types of hydrogen-bonded water populations throughout the adlayer. After prolonged cycling, a stable situation is reached. Under these conditions, water molecules permeate through the adlayer toward the electrode surface at potentials positive of the potential of zero charge, due to the repulsion between the CTA+ layer and the positive charge of the electrode.
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Korenblik R, van Zon JFJA, Olij B, Heil J, Dewulf MJL, Neumann UP, Olde Damink SWM, Binkert CA, Schadde E, van der Leij C, van Dam RM, van Baardewijk LJ, Barbier L, Binkert CA, Billingsley K, Björnsson B, Andorrà EC, Arslan B, Baclija I, Bemelmans MHA, Bent C, de Boer MT, Bokkers RPH, de Boo DW, Breen D, Breitenstein S, Bruners P, Cappelli A, Carling U, Robert MCI, Chan B, De Cobelli F, Choi J, Crawford M, Croagh D, van Dam RM, Deprez F, Detry O, Dewulf MJL, Díaz-Nieto R, Dili A, Erdmann JI, Font JC, Davis R, Delle M, Fernando R, Fisher O, Fouraschen SMG, Fretland ÅA, Fundora Y, Gelabert A, Gerard L, Gobardhan P, Gómez F, Guiliante F, Grünberger T, Grochola LF, Grünhagen DJ, Guitart J, Hagendoorn J, Heil J, Heise D, Herrero E, Hess G, Hilal MA, Hoffmann M, Iezzi R, Imani F, Inmutto N, James S, Borobia FJG, Jovine E, Kalil J, Kingham P, Kollmar O, Kleeff J, van der Leij C, Lopez-Ben S, Macdonald A, Meijerink M, Korenblik R, Lapisatepun W, Leclercq WKG, Lindsay R, Lucidi V, Madoff DC, Martel G, Mehrzad H, Menon K, Metrakos P, Modi S, Moelker A, Montanari N, Moragues JS, Navinés-López J, Neumann UP, Nguyen J, Peddu P, Primrose JN, Olde Damink SWM, Qu X, Raptis DA, Ratti F, Ryan S, Ridouani F, Rinkes IHMB, Rogan C, Ronellenfitsch U, Serenari M, Salik A, Sallemi C, Sandström P, Martin ES, Sarría L, Schadde E, Serrablo A, Settmacher U, Smits J, Smits MLJ, Snitzbauer A, Soonawalla Z, Sparrelid E, Spuentrup E, Stavrou GA, Sutcliffe R, Tancredi I, Tasse JC, Teichgräber U, Udupa V, Valenti DA, Vass D, Vogl TJ, Wang X, White S, De Wispelaere JF, Wohlgemuth WA, Yu D, Zijlstra IJAJ. Resectability of bilobar liver tumours after simultaneous portal and hepatic vein embolization versus portal vein embolization alone: meta-analysis. BJS Open 2022; 6:6844022. [PMID: 36437731 PMCID: PMC9702575 DOI: 10.1093/bjsopen/zrac141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/09/2022] [Accepted: 10/05/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Many patients with bi-lobar liver tumours are not eligible for liver resection due to an insufficient future liver remnant (FLR). To reduce the risk of posthepatectomy liver failure and the primary cause of death, regenerative procedures intent to increase the FLR before surgery. The aim of this systematic review is to provide an overview of the available literature and outcomes on the effectiveness of simultaneous portal and hepatic vein embolization (PVE/HVE) versus portal vein embolization (PVE) alone. METHODS A systematic literature search was conducted in PubMed, Web of Science, and Embase up to September 2022. The primary outcome was resectability and the secondary outcome was the FLR volume increase. RESULTS Eight studies comparing PVE/HVE with PVE and six retrospective PVE/HVE case series were included. Pooled resectability within the comparative studies was 75 per cent in the PVE group (n = 252) versus 87 per cent in the PVE/HVE group (n = 166, OR 1.92 (95% c.i., 1.13-3.25)) favouring PVE/HVE (P = 0.015). After PVE, FLR hypertrophy between 12 per cent and 48 per cent (after a median of 21-30 days) was observed, whereas growth between 36 per cent and 67 per cent was reported after PVE/HVE (after a median of 17-31 days). In the comparative studies, 90-day primary cause of death was similar between groups (2.5 per cent after PVE versus 2.2 per cent after PVE/HVE), but a higher 90-day primary cause of death was reported in single-arm PVE/HVE cohort studies (6.9 per cent, 12 of 175 patients). CONCLUSION Based on moderate/weak evidence, PVE/HVE seems to increase resectability of bi-lobar liver tumours with a comparable safety profile. Additionally, PVE/HVE resulted in faster and more pronounced hypertrophy compared with PVE alone.
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Korenblik R, Olij B, Aldrighetti LA, Hilal MA, Ahle M, Arslan B, van Baardewijk LJ, Baclija I, Bent C, Bertrand CL, Björnsson B, de Boer MT, de Boer SW, Bokkers RPH, Rinkes IHMB, Breitenstein S, Bruijnen RCG, Bruners P, Büchler MW, Camacho JC, Cappelli A, Carling U, Chan BKY, Chang DH, Choi J, Font JC, Crawford M, Croagh D, Cugat E, Davis R, De Boo DW, De Cobelli F, De Wispelaere JF, van Delden OM, Delle M, Detry O, Díaz-Nieto R, Dili A, Erdmann JI, Fisher O, Fondevila C, Fretland Å, Borobia FG, Gelabert A, Gérard L, Giuliante F, Gobardhan PD, Gómez F, Grünberger T, Grünhagen DJ, Guitart J, Hagendoorn J, Heil J, Heise D, Herrero E, Hess GF, Hoffmann MH, Iezzi R, Imani F, Nguyen J, Jovine E, Kalff JC, Kazemier G, Kingham TP, Kleeff J, Kollmar O, Leclercq WKG, Ben SL, Lucidi V, MacDonald A, Madoff DC, Manekeller S, Martel G, Mehrabi A, Mehrzad H, Meijerink MR, Menon K, Metrakos P, Meyer C, Moelker A, Modi S, Montanari N, Navines J, Neumann UP, Peddu P, Primrose JN, Qu X, Raptis D, Ratti F, Ridouani F, Rogan C, Ronellenfitsch U, Ryan S, Sallemi C, Moragues JS, Sandström P, Sarriá L, Schnitzbauer A, Serenari M, Serrablo A, Smits MLJ, Sparrelid E, Spüntrup E, Stavrou GA, Sutcliffe RP, Tancredi I, Tasse JC, Udupa V, Valenti D, Fundora Y, Vogl TJ, Wang X, White SA, Wohlgemuth WA, Yu D, Zijlstra IAJ, Binkert CA, Bemelmans MHA, van der Leij C, Schadde E, van Dam RM. Dragon 1 Protocol Manuscript: Training, Accreditation, Implementation and Safety Evaluation of Portal and Hepatic Vein Embolization (PVE/HVE) to Accelerate Future Liver Remnant (FLR) Hypertrophy. Cardiovasc Intervent Radiol 2022; 45:1391-1398. [PMID: 35790566 PMCID: PMC9458562 DOI: 10.1007/s00270-022-03176-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 05/08/2022] [Indexed: 12/02/2022]
Abstract
STUDY PURPOSE The DRAGON 1 trial aims to assess training, implementation, safety and feasibility of combined portal- and hepatic-vein embolization (PVE/HVE) to accelerate future liver remnant (FLR) hypertrophy in patients with borderline resectable colorectal cancer liver metastases. METHODS The DRAGON 1 trial is a worldwide multicenter prospective single arm trial. The primary endpoint is a composite of the safety of PVE/HVE, 90-day mortality, and one year accrual monitoring of each participating center. Secondary endpoints include: feasibility of resection, the used PVE and HVE techniques, FLR-hypertrophy, liver function (subset of centers), overall survival, and disease-free survival. All complications after the PVE/HVE procedure are documented. Liver volumes will be measured at week 1 and if applicable at week 3 and 6 after PVE/HVE and follow-up visits will be held at 1, 3, 6, and 12 months after the resection. RESULTS Not applicable. CONCLUSION DRAGON 1 is a prospective trial to assess the safety and feasibility of PVE/HVE. Participating study centers will be trained, and procedures standardized using Work Instructions (WI) to prepare for the DRAGON 2 randomized controlled trial. Outcomes should reveal the accrual potential of centers, safety profile of combined PVE/HVE and the effect of FLR-hypertrophy induction by PVE/HVE in patients with CRLM and a small FLR. TRIAL REGISTRATION Clinicaltrials.gov: NCT04272931 (February 17, 2020). Toestingonline.nl: NL71535.068.19 (September 20, 2019).
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Labanchi JL, Mujica G, Araya D, Poggio V, Gutiérrez A, Grizmado A, Calabró A, Crowley P, Arezo M, Seleiman M, Herrero E, Sepúlveda L, Talmon G, Díaz O, Larrieu E. Vaccination with EG95 against ovine cystic echinococcosis in the province of Río Negro: analysis of 12 years of work. CIENCIA VETERINARIA 2022. [DOI: 10.19137/cienvet202224209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Albarracin P, Cabañas MJ, Herrero E, Galeron R, Naval MH, Recio AG. Reviewing the complex link between epilepsy and psychosis. A case report. Eur Psychiatry 2021. [PMCID: PMC9479861 DOI: 10.1192/j.eurpsy.2021.2152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Introduction We present the case of a 56 year old woman with a diagnose of Complex Partial Seizures since her teenage years, with a history of multiple hospitalizations in the psychiatric ward of our hospital and a challenging clinical evolution. Objectives To review the different kinds of psychotic disorders that may arise in relation to epilepsia. Methods Literature review of scientific papers and classic textbooks on the issue, including references in both Spanish and English languages. Results From 2008 to 2011 our patient was hospitalized with episodes of different clinical features leading to different diagnoses (in 2008 the episode was compatible with a maniac phase and led to a diagnosis of possible Bipolar Disorder, in 2010 dissociative-like symptoms became more prominent and led to a diagnose of Dissociative Identity Disorder and in 2011 the symptoms pointed to an interictal depression), and a subsequent symptomatology that made clinicians consider a diagnose of unspecified schizophrenia. From 2015 to 2020 our patient suffered multiple decompensations resulting in up to six new hospitalizations, with psychotic symptoms in the shape of auditive hallucinations being consistent and affective symptoms varying widely. This evolution suggests a plausible diagnose of interictal chronic psychosis with bipolar-like affective episodes. Conclusions An extensive review of the available scientific literature shows, as so does this case, that along the course of an epileptic disease both schizophrenia-like psychosis and affective psychosis may arise, and that those might be divided along the categories of peri ictal and inter ictal disorders. Disclosure No significant relationships.
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Galeron R, Cabañas MJ, Albarracin P, Herrero E, Naval MH, Rendón-Luna BS. Posttraumatic stress disorder with psychotic symptoms. A case report. Eur Psychiatry 2021. [PMCID: PMC9479792 DOI: 10.1192/j.eurpsy.2021.1996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionWe present a 29-year-old man with a family psychopathological history of depression and a personal history of Posttraumatic Stress Disorder after sexual and psychological abuse in childhood, depressive symptoms and substance use (cannabis), who experienced delusions that made him feel threatened and in danger, with huge anxiety and insomnia for one year after a heartbreak. In addition, the patient was dysphoric, verborrheic and presented ruminative thoughts and flashbacks of abuse suffered in childhood.ObjectivesTo review the literature of Posttraumatic Stress Disorder with Psychotic Symptoms (PTSD-PS) and study the difference between PTSD-PS and other psychotic disorders.MethodsLiterature review of scientific articles searching in Pubmed and Medline. We considered articles in English and Spanish.ResultsPharmacological treatment with antipsychotics and mood stabilizer was started with remission of anxiety and insomnia and recovery of euthymia. Delusions persisted but without affective and behavioral repercussions. With psychotherapeutic work in a psychiatric Day Hospital, complete remission and proper processing of traumatic experiences were achieved. The main psychotic symptoms in PTSD are hallucinations and delusions which tend to chronicity. The content is often paranoid and persecutory in nature but not complex or bizarre like those found in schizophrenia. These symptoms are not limited to flashback episodes and the content may or may not be trauma related.ConclusionsAlthough the studies show PTSD-PS presents characteristic symptoms, more research about is needed.DisclosureNo significant relationships.
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Naval MH, Albarracin P, Galeron R, Herrero E, Deike LG. Management challenges in a schizophrenic patient with multiple brain abscesses: A case report. Eur Psychiatry 2021. [PMCID: PMC9480157 DOI: 10.1192/j.eurpsy.2021.2118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Cerebral abscesses are rare, occurring in approximately 0.3–1 per 100 000 patients. Mortality rate still remains as high as 22%. Very few cases of acute psychotic episodes associated with brain abscess have been reported. Objectives To present a case report of a patient with schizofrenia associated with multiple brain abscesses, focusing on clinical features and managing challenges. Methods Presentation of a clinical case supported by a non-systematic review of literature containing the key-words “brain abscess”, “psychosis” and “schizophrenia” Results This is a case report of a male 44-year-old patient with a known history of schizophrenia since the age of 18 and with multiple brain abscesses diagnosed 2 month ago. He was admitted to our inpatient service after discontinuation of her medication resulting in an acute psychotic episode. Antibiotic therapy with rifampicine, metronidazole, trimethoprim and sulfamethoxazole was started. Also, administration of clozapine was initiated (up to 400mg/day) with partial improvement, so aripiprazole was added (up to 45 mg/day), with insufficient response. We suspected of a drug interaction between rifampicine (known potent broad inducer of drug-metabolizing enzymes) and antipsychotic medication, so we decided to change aripiprazole to amisulpride 1200 mg/day, which CYP-catalyzed metabolism appears to be minor. A significant improvement in positive symptoms and mood was observed. The patient has since had no delusions or hallucinations and is living independently at home. Conclusions This clinical case highlights the possible association between brain abscesses and relapses in schizophrenia. It is of utmost importance to be aware for possible drug interactions between antibiotic therapy and antipsychotic medication. Disclosure No significant relationships.
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Trifonov T, Caballero JA, Morales JC, Seifahrt A, Ribas I, Reiners A, Bean JL, Luque R, Parviainen H, Pallé E, Stock S, Zechmeister M, Amado PJ, Anglada-Escudé G, Azzaro M, Barclay T, Béjar VJS, Bluhm P, Casasayas-Barris N, Cifuentes C, Collins KA, Collins KI, Cortés-Contreras M, de Leon J, Dreizler S, Dressing CD, Esparza-Borges E, Espinoza N, Fausnaugh M, Fukui A, Hatzes AP, Hellier C, Henning T, Henze CE, Herrero E, Jeffers SV, Jenkins JM, Jensen ELN, Kaminski A, Kasper D, Kossakowski D, Kürster M, Lafarga M, Latham DW, Mann AW, Molaverdikhani K, Montes D, Montet BT, Murgas F, Narita N, Oshagh M, Passegger VM, Pollacco D, Quinn SN, Quirrenbach A, Ricker GR, Rodríguez López C, Sanz-Forcada J, Schwarz RP, Schweitzer A, Seager S, Shporer A, Stangret M, Stürmer J, Tan TG, Tenenbaum P, Twicken JD, Vanderspek R, Winn JN. A nearby transiting rocky exoplanet that is suitable for atmospheric investigation. Science 2021; 371:1038-1041. [PMID: 33674491 DOI: 10.1126/science.abd7645] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 02/02/2021] [Indexed: 11/02/2022]
Abstract
Spectroscopy of transiting exoplanets can be used to investigate their atmospheric properties and habitability. Combining radial velocity (RV) and transit data provides additional information on exoplanet physical properties. We detect a transiting rocky planet with an orbital period of 1.467 days around the nearby red dwarf star Gliese 486. The planet Gliese 486 b is 2.81 Earth masses and 1.31 Earth radii, with uncertainties of 5%, as determined from RV data and photometric light curves. The host star is at a distance of ~8.1 parsecs, has a J-band magnitude of ~7.2, and is observable from both hemispheres of Earth. On the basis of these properties and the planet's short orbital period and high equilibrium temperature, we show that this terrestrial planet is suitable for emission and transit spectroscopy.
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Boronat-González A, Herrero E, Feliu JM. Determination of the potential of zero charge of Pt/CO electrodes using an impinging jet system. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04654-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Morales JC, Mustill AJ, Ribas I, Davies MB, Reiners A, Bauer FF, Kossakowski D, Herrero E, Rodríguez E, López-González MJ, Rodríguez-López C, Béjar VJS, González-Cuesta L, Luque R, Pallé E, Perger M, Baroch D, Johansen A, Klahr H, Mordasini C, Anglada-Escudé G, Caballero JA, Cortés-Contreras M, Dreizler S, Lafarga M, Nagel E, Passegger VM, Reffert S, Rosich A, Schweitzer A, Tal-Or L, Trifonov T, Zechmeister M, Quirrenbach A, Amado PJ, Guenther EW, Hagen HJ, Henning T, Jeffers SV, Kaminski A, Kürster M, Montes D, Seifert W, Abellán FJ, Abril M, Aceituno J, Aceituno FJ, Alonso-Floriano FJ, Ammler-von Eiff M, Antona R, Arroyo-Torres B, Azzaro M, Barrado D, Becerril-Jarque S, Benítez D, Berdiñas ZM, Bergond G, Brinkmöller M, Del Burgo C, Burn R, Calvo-Ortega R, Cano J, Cárdenas MC, Guillén CC, Carro J, Casal E, Casanova V, Casasayas-Barris N, Chaturvedi P, Cifuentes C, Claret A, Colomé J, Czesla S, Díez-Alonso E, Dorda R, Emsenhuber A, Fernández M, Fernández-Martín A, Ferro IM, Fuhrmeister B, Galadí-Enríquez D, Cava IG, Vargas MLG, Garcia-Piquer A, Gesa L, González-Álvarez E, Hernández JIG, González-Peinado R, Guàrdia J, Guijarro A, de Guindos E, Hatzes AP, Hauschildt PH, Hedrosa RP, Hermelo I, Arabi RH, Otero FH, Hintz D, Holgado G, Huber A, Huke P, Johnson EN, de Juan E, Kehr M, Kemmer J, Kim M, Klüter J, Klutsch A, Labarga F, Labiche N, Lalitha S, Lampón M, Lara LM, Launhardt R, Lázaro FJ, Lizon JL, Llamas M, Lodieu N, López Del Fresno M, Salas JFL, López-Santiago J, Madinabeitia HM, Mall U, Mancini L, Mandel H, Marfil E, Molina JAM, Martín EL, Martín-Fernández P, Martín-Ruiz S, Martínez-Rodríguez H, Marvin CJ, Mirabet E, Moya A, Naranjo V, Nelson RP, Nortmann L, Nowak G, Ofir A, Pascual J, Pavlov A, Pedraz S, Medialdea DP, Pérez-Calpena A, Perryman MAC, Rabaza O, Ballesta AR, Rebolo R, Redondo P, Rix HW, Rodler F, Trinidad AR, Sabotta S, Sadegi S, Salz M, Sánchez-Blanco E, Carrasco MAS, Sánchez-López A, Sanz-Forcada J, Sarkis P, Sarmiento LF, Schäfer S, Schlecker M, Schmitt JHMM, Schöfer P, Solano E, Sota A, Stahl O, Stock S, Stuber T, Stürmer J, Suárez JC, Tabernero HM, Tulloch SM, Veredas G, Vico-Linares JI, Vilardell F, Wagner K, Winkler J, Wolthoff V, Yan F, Osorio MRZ. A giant exoplanet orbiting a very-low-mass star challenges planet formation models. Science 2019; 365:1441-1445. [PMID: 31604272 DOI: 10.1126/science.aax3198] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 08/27/2019] [Indexed: 01/03/2023]
Abstract
Surveys have shown that super-Earth and Neptune-mass exoplanets are more frequent than gas giants around low-mass stars, as predicted by the core accretion theory of planet formation. We report the discovery of a giant planet around the very-low-mass star GJ 3512, as determined by optical and near-infrared radial-velocity observations. The planet has a minimum mass of 0.46 Jupiter masses, very high for such a small host star, and an eccentric 204-day orbit. Dynamical models show that the high eccentricity is most likely due to planet-planet interactions. We use simulations to demonstrate that the GJ 3512 planetary system challenges generally accepted formation theories, and that it puts constraints on the planet accretion and migration rates. Disk instabilities may be more efficient in forming planets than previously thought.
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Nieto M, Robles JC, Causse M, Gutiérrez L, Cruz Perez M, Ferrer R, Xercavins M, Herrero E, Sirvent E, Fernández C, Anguita P, Merino P. Polymerase Chain Reaction Versus Blood Culture to Detect Candida Species in High-Risk Patients with Suspected Invasive Candidiasis: The MICAFEM Study. Infect Dis Ther 2019; 8:429-444. [PMID: 31127539 PMCID: PMC6702528 DOI: 10.1007/s40121-019-0248-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION We evaluated the diagnostic reliability of serum polymerase chain reaction (PCR) versus blood culture, abdominal fluid or both (composite measure) in patients receiving empirical antifungal treatment for suspected invasive candidiasis. METHODS This observational, prospective, non-interventional, multicentre study in Spain enrolled 176 critically ill patients admitted to the intensive care unit. Separate blood samples for culture and serum PCR were taken before the start of antifungal therapy. Patient assessment was performed according to each site's usual clinical practice. The primary end point was concordance between serum PCR and blood culture. Secondary end points were concordance between serum PCR and a positive abdominal fluid sample or the composite measure. Quality indices included sensitivity, specificity, positive/negative predictive values (PPV/NPV) and kappa indices. RESULTS Among 175 evaluable patients, rates of Candida detection were similar for serum PCR (n = 16/175, 9.1%) versus blood culture (n = 14/175, 8.0%). Quality indices for serum PCR relative to blood culture were: sensitivity 21.4%; specificity 91.9%; PPV 18.8%; NPV 93.1%; kappa index 0.125. Thirty-two abdominal fluid samples were positive. Quality indices for serum PCR versus abdominal fluid were: sensitivity 31.3%; specificity 83.0%; PPV 15.6%; NPV 92.3%; kappa index 0.100. Quality indices for serum PCR versus the composite measure were: sensitivity 15.8%; specificity 92.7%; PPV 37.5%; NPV 79.9%; kappa index 0.107. CONCLUSION The sensitivity of serum PCR for Candida detection was low and the rate of concordance was low between serum PCR and the other diagnostic techniques used to identify Candida infections. Hospital-based diagnostic tests need optimising to improve outcomes in patients with suspected invasive candidiasis. FUNDING Astellas Pharma Inc.
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Ribas I, Tuomi M, Reiners A, Butler RP, Morales JC, Perger M, Dreizler S, Rodríguez-López C, González Hernández JI, Rosich A, Feng F, Trifonov T, Vogt SS, Caballero JA, Hatzes A, Herrero E, Jeffers SV, Lafarga M, Murgas F, Nelson RP, Rodríguez E, Strachan JBP, Tal-Or L, Teske J, Toledo-Padrón B, Zechmeister M, Quirrenbach A, Amado PJ, Azzaro M, Béjar VJS, Barnes JR, Berdiñas ZM, Burt J, Coleman G, Cortés-Contreras M, Crane J, Engle SG, Guinan EF, Haswell CA, Henning T, Holden B, Jenkins J, Jones HRA, Kaminski A, Kiraga M, Kürster M, Lee MH, López-González MJ, Montes D, Morin J, Ofir A, Pallé E, Rebolo R, Reffert S, Schweitzer A, Seifert W, Shectman SA, Staab D, Street RA, Suárez Mascareño A, Tsapras Y, Wang SX, Anglada-Escudé G. A candidate super-Earth planet orbiting near the snow line of Barnard’s star. Nature 2018; 563:365-368. [DOI: 10.1038/s41586-018-0677-y] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 10/01/2018] [Indexed: 11/09/2022]
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Perales-Rondón J, Busó-Rogero C, Solla-Gullón J, Herrero E, Feliu J. Formic acid electrooxidation on thallium modified platinum single crystal electrodes. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2016.09.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Briega-Martos V, Ferre-Vilaplana A, de la Peña A, Segura JL, Zamora F, Feliu JM, Herrero E. An Aza-Fused π-Conjugated Microporous Framework Catalyzes the Production of Hydrogen Peroxide. ACS Catal 2016. [DOI: 10.1021/acscatal.6b03043] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sánchez-Sánchez M, Garcia-de-Lorenzo A, Cachafeiro L, Herrero E, Asensio MJ, Agrifoglio A, Flores E, Estebanez B, Extremera P, Iglesias C, Martinez J. Acute kidney injury in critically burned patients resuscitated with a protocol that includes low doses of Hydroxyethyl Starch. ANNALS OF BURNS AND FIRE DISASTERS 2016; 29:183-188. [PMID: 28149246 PMCID: PMC5266234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 07/04/2016] [Indexed: 06/06/2023]
Abstract
Acute kidney injury (AKI) is an important complication in burn patients. Recently, it has been recommended that hydroxyethyl starch (HES) be avoided in burn patients because it increases the incidence of AKI. Our purpose was to study incidence of AKI in critically ill burn patients resuscitated with Ringer's solution and supplements of HES. We conducted an observational study of 165 patients admitted to the critical care burn unit (with 30 ± 15% TBSA burned). The main outcome measures were incidence of AKI, contributions of colloids and crystalloids, various severity scores, comorbidities, complications and mortality. According to the RIFLE criteria, 10 (6.1%) patients presented with Risk, 11 (6.7%) presented with Injury and 11 (6.7%) presented with Failure. According to the AKIN criteria, 9.7% presented stage I, 3% stage II and 10.3% stage III. Replacement therapy (RRT) was performed in 15 patients (9.1%), but in 6 of them RRT was employed in the final stages of multi-organ failure. The incidence of AKI in severe burn patients is high according to the RIFLE or AKIN criteria and these patients experience more complications and higher mortality. Our study suggests that the use of HES in low doses in the burn resuscitation phase does not cause more AKI than resuscitation without HES, but further evaluation is required. Further studies should be conducted.
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Velilla G, Carrión CJ, Portillo JA, Truán D, Azueta A, Fuentes J, Herrero E, Gala L. Microcytic carcinoma of the urinary bladder: Experience over 22 years. Actas Urol Esp 2016; 40:195-200. [PMID: 26748843 DOI: 10.1016/j.acuro.2015.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Accepted: 11/30/2015] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Microcytic carcinoma of the urinary bladder or bladder Small Cell Carcinoma (SCC) is a rare entity, characterised by an aggressive behaviour, with a poor prognosis, elevated metastatic potential, and is commonly found in older patients and in advanced disease stages. Here we present our experiences with the behaviour of the disease and the treatments applied. MATERIAL AND METHOD This was a retrospective study on patients diagnosed with bladder SCC in our hospital between February 1992 and February 2014. We analysed the demographic and clinical characteristics of the tumour, the applied treatments and survival. We performed a descriptive statistical analysis of the median follow-up time, Overall Survival (OS) and Cancer-Specific Survival (CSS), using the SPSS statistical package v. 15.0. RESULTS Over 22 years, 20 patients with an average age of 75 years were diagnosed with bladder SCC (2 female). The predominant symptom was macroscopic haematuria (75%). After the first transurethral resection (TUR) of the bladder and the histological diagnosis, 35% (7 patients) did not receive additional treatment, 15% (3 patients) were treated with chemoradiotherapy (CRT), 10% (2 patients) with TUR, 15% (3 patients) with chemotherapy (QT), 5% (1 patient) with TUR associated to CRT, 5% (1 patient) with radical surgery, 5% (1 patient) with radical surgery treatment followed by adjuvant CRT, 5% (1 patient) with palliative surgery (hypogastric arteriae ligation) followed by adjuvant QT and 5% (1 patient) with hemostatic radiotherapy (RT). With a median follow-up time of 13.8 months, the OS was 14.48 months (95% CI: 6.22 - 22.75) and the CSS 18.04 months (95% CI: 6.51-29.57). Only 10% (2 patients) survived till the end of the study. CONCLUSION Microcytic carcinoma of the urinary bladder is a rare and aggressive entity commonly diagnosed in males of advanced age and in advanced disease stages. It has a poor prognosis and reduced survival. Due to its aggressiveness previous to the initial diagnosis, a cystectomy is only possible in very few cases; therefore multimodal treatment is necessary. This treatment is yet to be defined.
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Álvarez-Lerma F, Grau S, López C, Jiménez JD, Trasmonte MV, Nieto M, Parra G, Herrero E. [Patients treated with micafungin during their stay in intensive care unit]. Med Intensiva 2015; 39:467-76. [PMID: 25798955 DOI: 10.1016/j.medin.2014.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Revised: 10/27/2014] [Accepted: 10/29/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To determine the reasons of prescription, the characteristics of patients and factors that affected the outcome of critically ill patients treated with micafungin (MCF) during their stay in Spanish ICUs. MATERIAL AND METHODS Observational, retrospective and multicenter study. Patients admitted to the ICU between March 2011 and October 2012 (20-month period) treated with MCF for any reason were included in the study. Severity of patients at the beginning of treatment was measured with the APACHE II, SOFA, Child-Pugh and MELD scores. Reasons for the use of MCF were classified as prophylaxis, preemptive treatment, empirical treatment and directed treatment. Continuous variables are expressed as mean and standard deviation or median, and categorical variables as percentages. A multivariate analysis was performed to identify variables related to intra-ICU mortality. RESULTS The study population included 139 patients admitted to 19 Spanish ICUs, with a mean age of 57.3 (17.1) years, 89 (64%) men, with surgical (53.2%) and/or medical (44.6%) conditions, APACHE II score of 20.6 (7.7) and SOFA score of 8.4 (4.3), with 84.2% of patients requiring mechanical ventilation, 59% parenteral nutrition, 37.4% extrarenal depuration procedures and 37.4% treatment with steroids. MCF was indicated as empirical treatment of a proven infection in 51 (36.7%) cases, pre-emptive treatment in 50 (36%) especially as a result of the application of the Candida score (32 cases), directed treatment of fungal infection in 23 (16.5%) and as prophylactic treatment in 15 (10.8%) cases. In 108 (77%) cases, a daily dose of 100mg was administered, with a loading dose in only 9 cases (6.5%). The mean duration of treatment was 13.1 (13) days. A total of 59 (42.4%) patients died during their stay in the ICU and 16 after ICU discharge (hospital mortality 53.9%). Independent risk factors for intra-ICU mortality were the Child-Pugh score (OR 1.45, 95% CI 1.162-1.813; P=.001) and the MELD score (OR 1.05, 95% CI 1.011-1.099; P=.014). CONCLUSIONS MCF is usually administered at a dose of 100mg/day, without loading dose and in 72.7% of cases as pre-emptive or empirical treatment. Factors that better predicted mortality were indicators of liver insufficiency at the time of starting treatment.
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Rodriguez P, García-Aráez N, Herrero E, Feliu J. New insight on the behavior of the irreversible adsorption and underpotential deposition of thallium on platinum (111) and vicinal surfaces in acid electrolytes. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Agrifoglio A, Asensio MJ, Sánchez M, Galván B, Herrero E, Cachafeiro L, Perales E, Luque S, García de Lorenzo A. Micafungin concentrations 100 mg daily in plasma and burn eschars in patients with severe burn injuries. Crit Care 2015. [PMCID: PMC4471201 DOI: 10.1186/cc14192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Asensio MJ, Sánchez M, Galván B, Herrero E, Cachafeiro L, Agrifoglio A, Perales E, Luque S, García-de-Lorenzo A. Micafungin at a standard dosage of 100 mg/day achieves adequate plasma exposure in critically ill patients with severe burn injuries. Intensive Care Med 2014; 41:371-2. [PMID: 25465909 DOI: 10.1007/s00134-014-3586-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 11/26/2014] [Indexed: 10/24/2022]
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Larrieu E, Molina V, Albarracín S, Mancini S, Bigatti R, Ledesma L, Chiosso C, Krivokapich S, Herrero E, Guarnera E. Porcine and rodent infection withTrichinella, in the Sierra Grande area of Río Negro province, Argentina. ANNALS OF TROPICAL MEDICINE AND PARASITOLOGY 2013; 98:725-31. [PMID: 15509426 DOI: 10.1179/000349804225021460] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In 2000, two cases of human trichinellosis were detected in the Sierra Grande area of Rio Negro province, Argentina. As part of an investigation of the aetiology of these cases, 300 pigs slaughtered for consumption in the area between 2000 and 2002 were checked for Trichinella infection, by artificial digestion of a muscle sample. Twelve (5.6%) - four (7.3%) of the 55 checked in 2000, five (4.8%) of the 105 investigated in 2001, and three (2.1%) of the 140 investigated in 2002 - were found infected. Blood samples were collected from other pigs aged > 6 months old, so that sera could be tested, in ELISA and by western blotting, for anti- Trichinella antibodies. Of the 181 animals checked in the initial serological survey, 36 (19.9%) were found seropositive for Trichinella. When 35 of the seronegative pigs were re-checked 6 months later, three (8.6%) were found to have seroconverted. Four (15.4%) of 26 local rodents, caught in Sherman-type traps, were also found positive when checked for infection by artificial digestion. It appears that about 20% of pigs in the study area are infected each year, this high level of transmission being sustained by a high prevalence of infection in the local rodent populations.
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Cachafeiro L, Sanchez M, Herrero E, Fernández L, Irazabal M, Hernandez M, Agrifoglio A, Garcia de Lorenzo A, Lendinez M. Inhalation injury in critical burn patients. Crit Care 2013. [PMCID: PMC3642470 DOI: 10.1186/cc12056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Busó-Rogero C, Herrero E, Bandlow J, Comas-Vives A, Jacob T. CO oxidation on stepped-Pt(111) under electrochemical conditions: insights from theory and experiment. Phys Chem Chem Phys 2013; 15:18671-7. [DOI: 10.1039/c3cp53282h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Roca B, Resino E, Torres V, Herrero E, Penades M. Interobserver discrepancy in liver fibrosis using transient elastography. J Viral Hepat 2012; 19:711-5. [PMID: 22967102 DOI: 10.1111/j.1365-2893.2012.01608.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Transient elastography is a useful method to assess liver fibrosis, but uncertainties still exist regarding reliability and reproducibility of the technique. We aimed to improve knowledge on interobserver variability with the procedure and tried to find factors associated with such variability. This was a cross-sectional study to compare the results of transient elastography performed by two different operators, one test made just after the other. We assessed both results with correlation tests and with repeated parametric or nonparametric tests, as needed. We also carried out a multivariate analysis to find factors associated with discrepancy in the results obtained by the two operators. We included a total of 333 pairs of transient elastography tests, belonging to 274 different patients. A total of 325 pairs of tests (97.6%) were valid. Results of the first and the second tests were, respectively, median (and interquartile range) of direct measurement 6.2 (4.6-10.6) and 6.0 (4.4-10.1) kPa (P = 0.012), and mean ± standard deviation of log(10) of direct measurement 0.892 ± 0.316 and 0.871 ± 0.324 (P = 0.001). In 87 pairs of tests (26.7%), a discrepancy of at least 2 kPa between both results was found, and in 15 pairs of tests (4.6%), a discrepancy of at least 10 kPa was found. Discordance of at least one stage between both measurements was noted in 74 pairs of tests (22.8%). An association was found between higher stiffness and discrepancy between both operators (P < 0.001). Although transient elastography is a very convenient test to assess liver fibrosis in clinical practice, interobserver discrepancy in results is common and represents a significant problem with the technique. Discrepant results are more common in patients with higher values of stiffness.
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