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Velasco R, Argyriou AA, Marco C, Mariotto S, Stradella A, Hernández J, Pernas S, Ferrari S, Bruna J. Serum neurofilament levels correlate with electrodiagnostic evidence of axonal loss in paclitaxel-induced peripheral neurotoxicity. J Neurol 2023; 270:531-537. [PMID: 36094631 DOI: 10.1007/s00415-022-11377-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Paclitaxel-induced peripheral neurotoxicity (PIPN) typically manifests as a predominantly sensory axonopathy. Nerve conduction studies (NCS) represent the gold standard method to quantify axonal impairment in PIPN. Serum neurofilament light chain (sNfL) levels are emerging biomarkers for quantifying axonal damage in peripheral neuropathies. To date, the association between NCS abnormalities and sNfL levels during paclitaxel-based chemotherapy has not been specifically addressed. METHODS We prospectively conducted longitudinal measurement of sNfL levels in 27 chemotherapy-naïve breast cancer patients and correlated conventional NCS recordings with sNfL in 22 of them, before (T0) and after (T1) 12 cycles of weekly paclitaxel-based therapy. RESULTS PIPN was diagnosed in 24/27 patients (88%) after completion of the 12-week paclitaxel-based chemotherapy regimen. Serum NfL levels (pg/mL) were significantly higher at T1 compared to T0 (T0: 18.50 ± 12.88 vs T1: 255.80 ± 194.16; p < 0.001). The increase of sNfL levels at T1 significantly correlated with the decrease or abolishment of amplitudes recorded from the sural nerve (r = 0.620; p = 0.0035), sensory radial (r = 0.613; p = 0.005), sensory ulnar (r = 0.630; p = 0.005), and peroneal motor (r = 0.568; p = 0.024) nerves. CONCLUSION sNfL levels proportionally increase during chemotherapy administration and significantly correlate with NCS axonal abnormalities in patients with PIPN. A multimodal testing approach employing both sNfL and NCS might improve the PIPN diagnostic accuracy.
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Affiliation(s)
- R Velasco
- Unit of Neuro-Oncology, Hospital Universitari de Bellvitge. Catalan Institute of Oncology-L'Hospitalet, Carrer de La Feixa Llarga, s/n, 08907 L'Hospitalet de Llobregat, Barcelona, Spain. .,Institute of Neurosciences and Department of Cell Biology, Physiology and Immunology, Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas, Universitat Autònoma de Barcelona, Bellaterra, Spain.
| | - A A Argyriou
- Neurology Department, Agios Andreas General Hospital of Patras, Patras, Greece
| | - C Marco
- Unit of Neuro-Oncology, Hospital Universitari de Bellvitge. Catalan Institute of Oncology-L'Hospitalet, Carrer de La Feixa Llarga, s/n, 08907 L'Hospitalet de Llobregat, Barcelona, Spain
| | - S Mariotto
- Neurology Unit, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - A Stradella
- Department of Medical Oncology, Breast Cancer Unit, ICO L'Hospitalet (IDIBELL), Barcelona, Spain
| | - J Hernández
- Institute of Neurosciences and Department of Cell Biology, Physiology and Immunology, Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - S Pernas
- Department of Medical Oncology, Breast Cancer Unit, ICO L'Hospitalet (IDIBELL), Barcelona, Spain
| | - S Ferrari
- Neurology Unit, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - J Bruna
- Unit of Neuro-Oncology, Hospital Universitari de Bellvitge. Catalan Institute of Oncology-L'Hospitalet, Carrer de La Feixa Llarga, s/n, 08907 L'Hospitalet de Llobregat, Barcelona, Spain.,Institute of Neurosciences and Department of Cell Biology, Physiology and Immunology, Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Velasco R, Marco C, Mariotto S, Stradella A, Hernández J, Argyriou AA, Ferrari S, Bruna J. P14.02.A Serum neurofilaments correlate with axonal loss in paclitaxel-induced peripheral neurotoxicity. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Paclitaxel-induced peripheral neuropathy (PIPN) is a dose-limiting axonal polyneuropathy. Nerve conduction studies (NCS) are unique for the assessment of axonal impairment in PIPN. Neurofilaments (NFs), constituent of the neuronal cytoskeleton, are emerging as axonal damage biomarker. To date, the association between changes in NCS and NfL quantification across paclitaxel treatment in breast cancer patients has not been specifically addressed.
MATERIAL AND METHODS: Prospective longitudinal measurement of sNfL levels and NCS in 27 chemotherapy-naïve breast cancer patients before (V0) and after completion (V1) of 12 cycles of weekly paclitaxel-based therapy.
Results
Serum NfL levels (in pg/mL) increased over the course of treatment in the whole of patients (T0: 18,509 +/- 12,886 vs T1:255,805 +/- 194,165, p<0.001). The increase in sNfL levels at T1 showed a significant moderate correlation with the percentage of decrease in the amplitude of the sural (ρ = 0.6205 (p=0.0035), radial (r=0.6134, p=0.005)), ulnar (ρ = 0.6298 (p=0.005)) and peroneal motor (ρ = 0.5676, p=0.024)) nerve in NCS across treatment.
Conclusion
sNfL levels increase proportionally to the degree of paclitaxel-induced neuroaxonal damage, revealing being a promising blood biomarker able to detect the severity of large nerve fiber degeneration and, therefore, improving the diagnostic accuracy in PIPN.
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Affiliation(s)
- R Velasco
- Neuro-Oncology Unit, Institut Català d′Oncologia-IDIBELL, L′Hospitalet , Barcelona , Spain
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Barcelona, Spain , Barcelona , Spain
| | - C Marco
- Neuro-Oncology Unit, Institut Català d′Oncologia-IDIBELL, L′Hospitalet , Barcelona , Spain
| | - S Mariotto
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona , Italy
| | - A Stradella
- Breast Cancer Unit, Institut Català d′Oncologia-IDIBELL, L′Hospitalet , Barcelona , Spain
| | - J Hernández
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Barcelona, Spain , Barcelona , Spain
| | - A A Argyriou
- Department of Neurology, "Saint Andrew's" State General Hospital of Patras, Patras, Greece. , Patras , Greece
| | - S Ferrari
- Department of Neuroscience, Biomedicine and Movement Sciences , Verona , Italy
| | - J Bruna
- Neuro-Oncology Unit, Institut Català d′Oncologia-IDIBELL, L′Hospitalet , Barcelona , Spain
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autònoma de Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Barcelona, Spain , Barcelona , Spain
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Simionato F, Pancheri F, Scarparo S, Frugoni P, Marco C, Menin A, Ave S, Capparotto L, Lupi A, Volpin L, Aprile G, Calvetti L. P48.07 Real-World Impact of Upfront Osimertinib in Reducing Health Resource Utilization by Preventing Brain Metastases. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Simionato F, Calvetti L, Pancheri F, Scarparo S, Frugoni P, Marco C, Menin A, Ave S, Lupi A, Aprile G. P89.13 Real-World Experience of NGS-Based Molecular Profiling in ‘Triple-Negative’ (EGFR/ALK/ROS1) Advanced NSCLC: Should we keep Testing Smokers? J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Montolio-Chiva L, Narváez J, Morandeira F, Bas J, Marco C, González X, Alegre-Sancho JJ, Flores E, Vázquez-Gómez I, López JM, Nolla JM. AB0163 ANTI-KU ANTIBODIES: MUCH MORE THAN SCLEROMYOSITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Initially, anti-Ku antibodies (Ab) were described in patients with overlap syndrome with systemic sclerosis (SSc) and inflammatory myophaty (scleromyositis), although later they have been linked to a wide variety of systemic autoimmune diseases (SAD) questioning its diagnostic value. Recently, the possible existence of 2 different clinical phenotypes associated with these Ab has been described: one with myositis and high risk of intersticial lung disease (ILD) and another with positive anti-dsDNA Ab and glomerulonephritis.Objectives:To analyze the clinical relevance and the main diagnosis of a serie of patients with positive anti-Ku Ab.Methods:Descriptive observational study of patients with anti-Ku Ab in two third level hospitals between 2011 and 2019. Their determination was made at the criteria of the requesting physician.Results:Twenty-three patients (20 women) with a median age of 59 ± 14 years (range, 24-83) and a follow up time (median) of 37 months (1-208) were identified. The main clinical and analytical characteristics, as well as the final clinical diagnosis of these patients are shown in Table 1. In the cluster analysis we could not identify clinical phenotypes, perhaps because of the small sample size. Only 50% of patients with myositis developed ILD. Regarding the final diagnosis, only 1 patient (5%) was diagnosed of scleromyositis. Besides detecting them in patients with SSc (39%) and idiopathic inflammatory myopathy (9%), anti-Ku Ab were detected in other SAD, the most frequent were systemic lupus erythematosus, rheumatoid arthritis (RA) and overlap syndrome of SSc + RA.Table 1.Main clinical-analytical manifestations and final diagnosis of pacientes with anti-Ku Ab.FINAL CLINICAL DIAGNOSiSScleromyositis: 1Idiopahtic inflammatory myopathy: 1Systemic sclerosis (SSc): 6 (Pre-scleroderma: 3, limited SSc: 3).Systemic lupus erythematosus: 2Rheumatoid arthritis: 2Overlap syndrome RA + limited SSc: 2Primary Sjögren’s syndrome: 1 (Secondary Sjögren’s syndrome: 3)Mixed connective tissue disease: 1Polymyalgia rheumatica: 1Undifferentiated connective tissue disease: 1Acute hepatitis due to HEV: 1Autoimmune thrombocytopenia (ITP): 1Drug-induced fibrosing ILD: 1Systemic graft versus host disease (GVHD) in a patient with acute lymphoblastic leukemia who received and autologous haematopoietic progenitor transplant: 1Primary biliary cirrhosis: 1CLINICAL MANIFESTATIONS(patients could have more than one):Raynaud’s phenomenon: 61% (14/23).Inflammatory arthralgia/arthritis: 52% (12).Lung involvement: 30.5% (7: NSIP 3, UIP 2, other patterns 2).Serositis: 26% (6: pericarditis 4, pleuritis 1, pleuropericarditis 1).Cardiac involvement: 26% (6: PHT by echocardiogram 3, myocarditis 2, arrhytmia 1).Dry syndrome: 17% (4)Myositis: 17% (4).Esophageal involvement: 17% (4).Autoimmune cytopenias: leucolinfopenia: 17% (4) / thrombocytopenia: 13% (3).Telangiectasias: 13% (3).Photosensitivity: 13% (3).Other: non-androgenic alopecia: 9% (2); sensory-motor polyneuropathy: 4.5% (1);Puffy hands: 4.5% (1); fever: 4.5% (1); lymphadenitis: 4.5% (1); cold sores: 4.5% (1), and retinal hemorrhage: 4.5% (1).OTHER ASSOCIATED ANTIBODIES:ANA: 91% (21/23)anti Ro60/SSA Ab: 30.5% (7)Anti Ro52 Ab: 30.5% (7)Anti RNP Ab: 22% (5)Anti-dsDNA: 17% (4)Anti-La/SSB Ab: 17% (4)Anticentromer Ab: 17% (4)Anti Mi-2 Ab: 13% (3)Other: anti Sm Ab: 9% (2); anticardiolipin Ab(IgG): 4.5% (1); PM/Scl: 4.5% (1); nucleosomes: 4.5% (1); Scl70: 4.5% (1); PL12: 4.5% (1); anti-U1-RNP: 4.5% (1) and NOR90: 4.5% (1).Conclusion:Anti-Ku Ab are related to a great variety of SAD, without being a specific marker of any of them, nor being associated with any specific clinical manifestation. We couldn’t confirm the existence of clinical phenotypes associated with the presence of these antibodies.Disclosure of Interests:L Montolio-Chiva: None declared, J. Narváez: None declared, Francisco Morandeira: None declared, Jordi Bas: None declared, Carla Marco: None declared, Xavier González: None declared, Juanjo J Alegre-Sancho Consultant of: UCB, Roche, Sanofi, Boehringer, Celltrion, Paid instructor for: GSK, Speakers bureau: MSD, GSK, Lilly, Sanofi, Roche, UCB, Actelion, Pfizer, Abbvie, Novartis, Eduardo Flores: None declared, I Vázquez-Gómez: None declared, Jose María López: None declared, Joan Miquel Nolla: None declared
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Montolio-Chiva L, Narváez J, Alegre-Sancho JJ, Lluch Pons J, Orenes Vera AV, Vázquez-Gómez I, Mora M, González X, Marco C, Rodriguez J, Romera M, Nolla JM. AB0594 EFFECTIVENESS OF RITUXIMAB IN CSDMARDS-RESISTANT ACTIVE MIXED CONNECTIVE TISSUE DISEASE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Objectives:To evaluate rituximab (RTX) effectiveness and safety in treating patients with refractory mixed connective tissue disease (MCTD).Methods:Open observational study including patients with refractory MCTD (active disease despite treatment with glucocorticoids and csDMARDs) from two third-level hospitals who had been treated with RTX (off-label use) from January 2001 to December 2019.Results:Thirteen patients (all women) were included, with a mean age of 32 years (SD: 10, range 17-50) and a median time of evolution of the disease of 55 months (SD: 34.3; range 5-98 months). The main indication for initiating treatment with RTX was refractory arthritis (100%), most of the times accompanied by other features of the disease including shrinking lung syndrome (2), fibrosing progressive non-specific interstitial pneumonia (FP-NSIP) (1), recurrent serositis (2), glomerulonephritis (GMN) (2), lymphadenitis (1) and immune thrombocytopenic purpura (ITP) (1). All patients were treated with RTX at rheumatoid arthritis dosage while the baseline immunosuppressive treatment (methotrexate, azathioprine, mycophenolate, leflunomide or tacrolimus) remained unchanged. Hydroxychloroquine was also associated in 8 of the patients. The follow-up time (median) after starting RTX was 118 months (range, 65-177 months, with a total of 132.6 patient-years of follow-up) and the mean number of cycles of treatment was 4.2 (range, 1-15), with a variable interval (from 6 to 12 months). After the first RTX cycle, a partial or complete response was achieved in 92% of the patients. A significant improvement in the mean DAS28-ESR was observed (initial: 4.56 ± 1.6 / final: 2.21 ± 0.85; p=0.008). In all but one patient, who had previously failed to 2 anti-TNFα DAS28-ESR clinical remission or low activity was achieved, generally from week 16 to 20, although relapses were frequent and all cases need retreatment after 6-9 months. In 4 patients, RTX retreatment dosage was optimized to 1 g/cycle. The 3 patients with pulmonary involvement showed stabilization (2 cases) or improvement (1) of the lung function(as defined by the American Thoracic Society). In patients with GMN, renal response to RTX treatment was complete in a patient and partial in the other. The patient with ITP entered remission after the first RTX cycle and no more cycles were needed. Response in patients with serositis and lymphadenitis was also complete and maintained. Moreover, the glucocorticoid doses were reduced to less than half of the initial dose in all cases. At the end of the follow-up, 7 out of the 13 patients (54%) were still being treated with RTX. For the remaining 6 patients, RTX was withdrawn because of primary failure (1), recurrent bacterial infections (2), gestational desire (2) sustained remission (1).Conclusion:According to our preliminary results, RTX seems to be effective and relatively safe in patients with csDMARDs-resistant active MCTD.Disclosure of Interests:L Montolio-Chiva: None declared, J. Narváez: None declared, Juanjo J Alegre-Sancho Consultant of: UCB, Roche, Sanofi, Boehringer, Celltrion, Paid instructor for: GSK, Speakers bureau: MSD, GSK, Lilly, Sanofi, Roche, UCB, Actelion, Pfizer, Abbvie, Novartis, J Lluch Pons: None declared, Ana V Orenes Vera: None declared, I Vázquez-Gómez: None declared, Maribel Mora: None declared, Xavier González: None declared, Carla Marco: None declared, Jesús Rodriguez: None declared, Montserrat Romera: None declared, Joan Miquel Nolla: None declared
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Marco C, Miguel-Pérez M, Pérez-Bellmunt A, Ortiz-Sagristà J, Martinoli C, Möller I, Ortiz Miguel S, Agulló P. Anatomical causes of compression of the sciatic nerve in the pelvis. Piriform syndrome. Rev Esp Cir Ortop Traumatol (Engl Ed) 2019. [DOI: 10.1016/j.recote.2019.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Marco C, Bryant M, Landrum B, Drerup B, Weeman M, Petrosino M. 123 Refusal of Care in the Emergency Department Setting: Patient Perspectives. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Marco C, Miguel-Pérez M, Pérez-Bellmunt A, Ortiz-Sagristà JC, Martinoli C, Möller I, Ortiz Miguel S, Agulló P. Anatomical causes of compression of the sciatic nerve in the pelvis. Piriform syndrome. Rev Esp Cir Ortop Traumatol (Engl Ed) 2019; 63:424-430. [PMID: 31371245 DOI: 10.1016/j.recot.2019.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/07/2019] [Accepted: 06/23/2019] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVE The piriformis syndrome is one of the etiologies of pelvic pain due to the sciatic nerve's entrapment by the piriformis muscle. Nowadays this syndrome might be difficult to be diagnosed. The aim of this study is to know the prevalence of anatomic variations in our population that may contribute to the appearance of piriformis syndrome. Furthermore, anthropometric measurements of the piriformis muscle and the sciatic nerve procedures are studied for a possible application in the gluteal region. MATERIAL AND METHOD The study was carried out in 59 pelvis of 32 cryopreserved bodies. The anatomical variations of piriformis and sciatic nerve founded were described following the Beaton and Anson's classification. Anthropometric measurements of both structures with reference to the greater trochanter of the femur were performed. RESULTS The sciatic nerve and the piriformis had an anatomical variation in a 28.13%. The most frequent variation found was tipus II (21.64%) and tipus III (6.49%).Insertion most frequently observed was an independent piriformis tendon inserted into the trochanteric fossa with 53.85%. CONCLUSION The anatomic variations' incidence in the population studied indicates that those have to be evaluated as a differential diagnosis of gluteal region pain due to the symptoms and signs resemblance with the vertebral disc pathology involving nerve root injury. In addition, anatomical knowledge of this region can be useful for the interpretation of imaging techniques, especially when ultrasound-guided injections are performed.
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Affiliation(s)
- C Marco
- Unidad de Anatomía y Embriología Humana, Departamento de Patología y Terapéutica Experimental, Facultad de Medicina y Ciencias de la Salud (Campus de Bellvitge), Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, España
| | - M Miguel-Pérez
- Unidad de Anatomía y Embriología Humana, Departamento de Patología y Terapéutica Experimental, Facultad de Medicina y Ciencias de la Salud (Campus de Bellvitge), Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, España.
| | - A Pérez-Bellmunt
- Departamento de Ciencias Básicas, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, España
| | | | - C Martinoli
- Cattedra di Radiologia «R»-DICMI, Università di Genova, Génova, Italia
| | - I Möller
- Unidad de Anatomía y Embriología Humana, Departamento de Patología y Terapéutica Experimental, Facultad de Medicina y Ciencias de la Salud (Campus de Bellvitge), Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, España
| | - S Ortiz Miguel
- Unidad de Anatomía y Embriología Humana, Departamento de Patología y Terapéutica Experimental, Facultad de Medicina y Ciencias de la Salud (Campus de Bellvitge), Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, España; Departamento de Ciencias Básicas, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, España
| | - P Agulló
- Unidad de Anatomía y Embriología Humana, Departamento de Patología y Terapéutica Experimental, Facultad de Medicina y Ciencias de la Salud (Campus de Bellvitge), Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, España; Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, España
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Wolfson AR, Futterman A, Marco C, Harkins E. 0264 Understanding the Impact of the Early Adolescent Sleep Smart Program: Sleep Efficacy and Actigraphically Estimated Sleep Duration. Sleep 2018. [DOI: 10.1093/sleep/zsy061.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
| | | | - C Marco
- Rhode Island College, Providence, RI
| | - E Harkins
- Johns Hopkins University, Baltimore, MD
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Marco C, Anderson A, Mann D, Mozeleski E, Post A, Holbrook M. 120 Advance Directives: Applications to Clinical Scenarios. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lobo E, Ventura T, Navio M, Santabárbara J, Kathol R, Samaniego E, Marco C, Lobo A. Identification of components of health complexity on internal medicine units by means of the INTERMED method. Int J Clin Pract 2015; 69:1377-86. [PMID: 26271926 DOI: 10.1111/ijcp.12721] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/27/2015] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The INTERMED was developed for the early identification of biological, psychological, social and health system factors considered interacting in health complexity. This is defined as the interference with the achievement of expected or desired health and service use outcomes when patients are exposed to standard care. OBJECTIVE The aim of this study was to test the INTERMED's ability to identify 'case' and 'care' complexity, identifying patients that would especially benefit from integrated care. METHODS Observational longitudinal study of Internal medicine in patients in two National Health System hospitals in Spain using the INTERMED (patients scoring ≥ 21 were considered to be 'complex'); the Cumulative Illness Rating Scale (CIRS), a severity of illness assessment; and standard clinical variables. RESULTS Six hundred and fifteen consecutives were included, and the prevalence of health complexity was 27.6%. The greatest differences between patients with and without health complexity were observed in the non-biological domains. Eighty-five per cent of patients with health complexity had non-biological items considered to require timely (immediately or soon) assistance or intervention compared to 30% of those without, nearly a threefold difference. Complex patients had a significantly higher number of medical diagnoses (p = 0.002) and number of psychiatric referrals (p = 0.041), but there were no differences in CIRS scores or lengths of stay. CONCLUSION The INTERMED has the potential to identify a considerable subset of complex internal medicine inpatients for which timely corrective action related to non-biological risk factors not typically uncovered during standard medical evaluations would be considered beneficial.
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Affiliation(s)
- E Lobo
- Departamento de Medicina Preventiva y Salud Pública, Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Zaragoza, Spain
- Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain
| | - T Ventura
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Zaragoza, Spain
- Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain
- Departamento de Medicina y Psiquiatría, Universidad de Zaragoza, Zaragoza, Spain
- Servicio de Psiquiatría, Hospital Clínico Universitario, Zaragoza, Spain
| | - M Navio
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Zaragoza, Spain
- Servicio de Psiquiatría, Hospital Doce de Octubre, Madrid, Spain
| | - J Santabárbara
- Departamento de Medicina Preventiva y Salud Pública, Universidad de Zaragoza, Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Zaragoza, Spain
- Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain
| | - R Kathol
- Cartesian Solutions, Inc™, Burnsville, MN, USA
- Departments of Internal Medicine and Psychiatry, University of Minnesota, Minneapolis, MN, USA
| | - E Samaniego
- Departamento de Fisiatría y Enfermería, Universidad de Zaragoza, Zaragoza, Spain
- Hospital Residencia Profesor Rey Ardid, Zaragoza, Spain
| | - C Marco
- Servicio de Psiquiatría, Hospital Clínico Universitario, Zaragoza, Spain
| | - A Lobo
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Zaragoza, Spain
- Instituto de Investigación Sanitaria Aragón (IIS Aragón), Zaragoza, Spain
- Departamento de Medicina y Psiquiatría, Universidad de Zaragoza, Zaragoza, Spain
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Serran-Aguilera L, Nuti R, López-Cara LC, Ríos-Marco P, Carrasco MP, Marco C, Entrena A, Macchiarulo A, Hurtado-Guerrero R. Choline kinase active site provides features for designing versatile inhibitors. Curr Top Med Chem 2015; 14:2684-93. [PMID: 25515750 DOI: 10.2174/1568026614666141216093337] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 07/22/2014] [Indexed: 11/22/2022]
Abstract
Choline kinase (CK) is a homodimeric enzyme that catalyses the transfer of the ATP γ-phosphate to choline, generating phosphocholine and ADP in the presence of magnesium. Several isoforms of CK are present in humans but only the HsCKα has been associated with cancer and validated as a drug target to treat this disease. As a consequence a large number of compounds based on Hemicholinium (HC-3) have been described. Two compounds, previously reported to inhibit the human enzyme, have recently been shown to inhibit P. falciparum CK (PfCK) and therefore their potential applications might be anticipated to other pathogens. Herein, using molecular dynamic simulations, we have firstly observed that the ATP and the choline binding site of different CK in pathogens and human are conserved, suggesting that previous compounds inhibiting the human enzyme may also interact with CKs from different pathogens. We have substantiated such observation with experimental assays showing that HsCKα1, PfCK and CpCK bind to two compounds with distinct structural features in the low μM range. Collectively, these results uncover similarities among the choline kinase binding site from different pathogenic species and the human enzyme, highlighting the feasibility of designing novel inhibitors based on the choline binding pocket.
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Affiliation(s)
| | | | | | | | | | | | | | | | - R Hurtado-Guerrero
- Department of Pharmaceutical and Organic Chemistry, Faculty of Pharmacy, University of Granada, Campus Cartuja, Granada 18071, Spain.
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Parker B, Marco C, Duncan B, Rockey H. 165 Health Literacy Regarding Diagnostic Testing in the Emergency Department. Ann Emerg Med 2014. [DOI: 10.1016/j.annemergmed.2014.07.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Marco C, Counselman F, Korte R, Purofsky R, Reisdorff E. Delaying the ABEM Qualifying Examination Leads to Poorer Performance. Ann Emerg Med 2013. [DOI: 10.1016/j.annemergmed.2013.07.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Canabal A, Hortigüela V, Raigal A, Sánchez P, Sánchez M, Marco C, Fernández E, Márquez JA. [Foreseeable variation in parameters measured at implant and follow-up of permanent pacemaker active fixation electrodes]. Med Intensiva 2011; 36:270-6. [PMID: 22192317 DOI: 10.1016/j.medin.2011.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Revised: 10/18/2011] [Accepted: 11/01/2011] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To analyze the variations in the parameters relative to active fixation electrodes at the time of implantation and over subsequent follow-up during 6 months of the acute phase of implantation. DESIGN A descriptive, analytical, prospective, observational cohort study was made of consecutive cases over a period of 8 months (April-December 2010). SETTING Pacing unit of an Intensive Care Unit. PATIENTS OR PARTICIPANTS Patients undergoing permanent pacemaker implantation with active fixation electrodes, implanted in both atrium and ventricle, Interventions: Measurement of variables described with a threshold analyzer during electrode fixation and at different times during the study, Main compared variables: threshold, impedance and intrinsic activity (both atrial and ventricular) before and after fixation, at 48 hours, at one month and 6 months, Comparisons were made using the Student t-test for paired data, assuming significance for p<0,05, and ANOVA to analyze the successive changes over ambulatory follow-up. RESULTS We analyzed 40 patients, with 19 atrial and 40 ventricular electrodes, In fixation, the electrodes showed significant variation in the impedance values of the atrial lead (1,188,53 ± 397,26 vs 610,69 ± 326,30 ohms, p<0,0001) and ventricular lead (1,512,93 ± 718,07 vs 768,80 ± 224,90 ohms, p>0,0001), In the first 48 hours it was coupled with a decrease in ventricular (0,86 ± 0,35 vs 0,48 ± 0,23 volts, p = 0,0001) and atrial pacing threshold (1,10 ± 0,39 vs 0,43 ± 0,23 volts, p = 0,0003), and p-wave sensing (3,61 ± 2,25 vs 2,32 ± 1,09 mV, p = 0,0463), Over follow-up we found the parameters to be stable, with no significant changes. CONCLUSIONS After active lead fixation, a fall in impedance of the antrial and ventricular is expected, Over the next 48 hours improvement in atrial and ventricular threshold may occur, in contrast to the sensitivity of the intrinsic activity, which reached significance at the P wave measured after 48 hours, These values stabilize over patient follow-up and do not differ significantly in the studied acute patient course.
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Affiliation(s)
- A Canabal
- Servicio de Medicina Intensiva, Hospital Virgen de la Salud de Toledo, España.
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Marco C, Nagel J, Klink E, Baehren D. 143 Factors Associated With Self-Reported Pain Scores Among Emergency Department Patients. Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Díez J, Barral L, Bellas R, Bouza R, López J, Marco C, Ellis G. Microstructure, morphology, and mechanical properties of styrene-butadiene rubber/organoclay nanocomposites. POLYM ENG SCI 2011. [DOI: 10.1002/pen.21950] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Naffakh M, Marco C, Gómez MA, Ellis G, Maser WK, Benito A, Martínez MT. Crystalline transformations in nylon-6/single-walled carbon nanotube nanocomposites. J Nanosci Nanotechnol 2009; 9:6120-6126. [PMID: 19908503 DOI: 10.1166/jnn.2009.1558] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Nylon-6/single-walled carbon nanotube (SWNT) nanocomposites with different SWNTs loadings were prepared by melt-blending. An efficient dispersion of SWNTs into the nylon-6 matrix was confirmed by scanning electron microscopy. DSC and time-resolved synchrotron X-ray diffraction were used to provide detailed information on the effect of SWNTs on the crystalline phase transition of nylon-6 in the nanocomposites. The incorporation of SWNTs accelerated the crystallization rate of nylon-6 due to a nucleating effect. The variable-temperature WAXS experiments, in both neat nylon-6 and nylon-6 nanocomposites, showed that the crystallization from the melt occured through the formation of the pseudo-hexagonal crystal form (gamma) and its transformation to the monoclinic form (alpha) on cooling. Additionally, this crystalline transition was reversible as observed upon heating. The alpha-gamma crystalline transformation temperature of nylon-6 was dependent on heating rate and, more importantly, on the SWNT content.
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Affiliation(s)
- M Naffakh
- Departamento de Física e Ingeniería de Polímeros, Instituto de Ciencia y Tecnología de Polímeros, CSIC, c/Juan de la Cierva, 3, 28006, Madrid, Spain
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Sinha S, Callan E, Akpunonu P, Baehren D, Marco C. 43: How Does Use of a Statewide Prescription Monitoring Program Affect Emergency Department Prescribing Behaviors? Ann Emerg Med 2009. [DOI: 10.1016/j.annemergmed.2009.06.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Díez-Pascual AM, Naffakh M, Gómez MA, Marco C, Ellis G, González-Domínguez JM, Ansón A, Martínez MT, Martínez-Rubi Y, Simard B, Ashrafi B. The influence of a compatibilizer on the thermal and dynamic mechanical properties of PEEK/carbon nanotube composites. Nanotechnology 2009; 20:315707. [PMID: 19597256 DOI: 10.1088/0957-4484/20/31/315707] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The effect of polyetherimide (PEI) as a compatibilizing agent on the morphology, thermal, electrical and dynamic mechanical properties of poly(ether ether ketone) (PEEK)/single-walled carbon nanotube (SWCNT) nanocomposites, has been investigated for different CNT loadings. After a pre-processing step based on ball milling and pre-mixing under mechanical treatment in ethanol, the samples were prepared by melt extrusion. A more homogeneous distribution of the CNTs throughout the matrix is found for composites containing PEI, as revealed by scanning electron microscopy. Thermogravimetric analysis demonstrates an increase in the matrix degradation temperatures under dry air and nitrogen atmospheres with the addition of SWCNTs; the level of thermal stability of these nanocomposites is maintained when PEI is incorporated. Both differential scanning calorimetry and synchrotron x-ray scattering studies indicate a slight decrease in the crystallization temperatures of the compatibilized samples, and suggest the existence of reorganization phenomena during the heating, which are favoured in the composites incorporating the compatibilizer, due to their smaller crystal size. Dynamic mechanical studies show an increase in the glass transition temperature of the nanocomposites upon the addition of PEI. Furthermore, the presence of PEI causes an enhancement in the storage modulus, and hence in the rigidity of these systems, attributed to an improved interfacial adhesion between the reinforcement and the matrix. The electrical and thermal conductivities of these composites decrease with the incorporation of PEI. Overall, the compatibilized samples exhibit improved properties and are promising for their use in industrial applications.
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Affiliation(s)
- A M Díez-Pascual
- Departamento de Física e Ingeniería de Polímeros, Instituto de Ciencia y Tecnología de Polímeros, CSIC, c/Juan de la Cierva 3, 28006 Madrid, Spain.
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Simon B, Treat V, Marco C, Rosenberg D, Joseph J, Hipszer B, Li Y, Chervoneva I, Padron-Massara L, Jabbour S. A comparison of glycaemic variability in CSII vs. MDI treated type 1 diabetic patients using CGMS. Int J Clin Pract 2008; 62:1858-63. [PMID: 19166434 DOI: 10.1111/j.1742-1241.2008.01932.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To evaluate and compare glucose variability, hypoglycaemic events and daily glycaemic control in well-controlled (HbA1c <or= 7%), type 1 diabetic patients treated with either continuous subcutaneous insulin infusion (CSII) using lispro or multiple daily insulin injection (MDI) using glargine once daily and lispro with meals. RESEARCH DESIGN AND METHODS A total of 16 patients with type 1 diabetes receiving treatment with either CSII (eight patients) or MDI (eight patients), all with HbA1c levels < 7%, wore a continuous glucose monitoring system sensor for 3 days to compare the number, duration, timing and severity of hyperglycaemic and hypoglycaemic episodes. RESULTS There were several more episodes of hyperglycaemic [blood glucose (BG) >or= 180 mg/dl] and hypoglycaemic (BG <or= 60 mg/dl) excursions observed in patients treated with CSII than MDI. Glycaemic exposure over 150 mg/dl was similar between the two groups. Maintenance of near-euglycaemia as determined by the average amount of time spent within the glucose range of 80-140 mg/dl was marginally significantly better for the MDI than for the CSII group. Although the CSII group had significantly more hypoglycaemic episodes below 60 mg/dl, the average duration of hypoglycaemia was not significantly different for the two groups. Similar percentages of nocturnal hypoglycaemia were seen. There were no reported major adverse events throughout the duration of the study. CONCLUSION Well-controlled type 1 diabetic patients treated with MDI had fewer hyperglycaemic and hypoglycaemic excursions than patients treated with CSII.
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Affiliation(s)
- B Simon
- Division of Endocrinology & Diabetes, Drexel University College of Medicine, Philadelphia, PA, USA
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Osorio J, Rodríguez-Santiago J, Muñoz E, Camps J, Veloso E, Marco C. Outcome of unresected gastric cancer after laparoscopic diagnosis of peritoneal carcinomatosis. Clin Transl Oncol 2008; 10:294-7. [PMID: 18490247 DOI: 10.1007/s12094-008-0200-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Most gastric adenocarcinomas in western countries are locally advanced, and these tumours are often associated with metastatic spread at the time of diagnosis. It is controversial whether palliative surgery can improve symptom control in gastric cancer patients with peritoneal carcinomatosis. OBJECTIVE To determine the need of palliative procedures and survival in patients affected by gastric cancer with peritoneal carcinomatosis managed without resection. Methods and materials After standard preoperative staging, 160 patients were diagnosed with resectable gastric adenocarcinoma. Laparoscopy was performed in 107 patients (66.9%), finding peritoneal spread in 22 of them (21%). Seventeen of these patients were not submitted to any additional surgical procedure. Data regarding postoperative morbidity and mortality, need of endoscopic, percutaneous or surgical procedures to palliate symptoms, hospital stay and survival were collected. The same data were collected for the 6 non-resected patients who were diagnosed with carcinomatosis by laparotomy. RESULTS In the "laparoscopy alone" group, there were 2 minor complications and no postoperative mortality. Mean postoperative stay was 6 days. Eight patients had to be readmitted to hospital for symptoms derived from tumour progression, and 10 palliative endoscopic procedures were performed. Surgical interventions were not needed in any case. Mean survival was 11.5 months. Patients submitted only to laparotomy presented higher morbidity and mortality rates, with a longer postoperative stay and survival of less than 5 months. CONCLUSIONS Laparoscopic staging of gastric cancer can help to avoid unnecessary laparotomies. In patients with peritoneal carcinomatosis diagnosed by laparoscopy, nonsurgical treatment has low morbidity and mortality and permits good symptom relief with no shortening of survival.
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Affiliation(s)
- J Osorio
- Service of General and Digestive Surgery, Hospital Mutua de Terrassa, Universitat de Barcelona, Terrassa, Spain.
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Fanegas N, Gómez M, Marco C, Jiménez I, Ellis G. Influence of a nucleating agent on the crystallization behaviour of isotactic polypropylene and elastomer blends. POLYMER 2007. [DOI: 10.1016/j.polymer.2007.07.004] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Fayos J, Sánchez-Cortés S, Marco C, Pérez-Méndez M. CONFORMATIONAL ANALYSIS AND MOLECULAR MODELING OF CHOLESTERIC LIQUID CRYSTAL POLYESTERS BASED ON XRD, RAMAN, AND TRANSITION THERMAL ANALYSIS. J MACROMOL SCI B 2007. [DOI: 10.1081/mb-100106177] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- J. Fayos
- a Instituto Rocasolano, CSIC , Madrid, Spain
| | | | - C. Marco
- c Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva, 3, Madrid, 28006, Spain
| | - M. Pérez-Méndez
- d Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva, 3, Madrid, 28006, Spain
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Collar EP, Marco C, Areso S, García-Martínez JM. THERMAL BEHAVIOR OF PP/PA6 BLENDS UNDER DYNAMIC CONDITIONS. THE EFFECT OF DIFFERENT INTERFACIAL AGENTS BASED ON CHEMICALLY MODIFIED ATACTIC POLYPROPYLENE. J MACROMOL SCI B 2007. [DOI: 10.1081/mb-100106165] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- E. P. Collar
- a Departamento de Física e Ingeniería de Polímeros , Instituto de Ciencia y Tecnología de Polímeros, CSIC , C/ Juan de la Cierva, 3, Madrid, 28006, Spain
| | - C. Marco
- a Departamento de Física e Ingeniería de Polímeros , Instituto de Ciencia y Tecnología de Polímeros, CSIC , C/ Juan de la Cierva, 3, Madrid, 28006, Spain
| | - S. Areso
- a Departamento de Física e Ingeniería de Polímeros , Instituto de Ciencia y Tecnología de Polímeros, CSIC , C/ Juan de la Cierva, 3, Madrid, 28006, Spain
| | - J. Ma. García-Martínez
- a Departamento de Física e Ingeniería de Polímeros , Instituto de Ciencia y Tecnología de Polímeros, CSIC , C/ Juan de la Cierva, 3, Madrid, 28006, Spain
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Naffakh M, Martín Z, Fanegas N, Marco C, Gómez MA, Jiménez I. Influence of inorganic fullerene-like WS2 nanoparticles on the thermal behavior of isotactic polypropylene. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/polb.21231] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Fanegas N, Gómez M, Jiménez I, Marco C, Garcia-Martínez J, Ellis G. Optimizing the balance between impact strength and stiffness in polypropylene/elastomer blends by incorporation of a nucleating agent. POLYM ENG SCI 2007. [DOI: 10.1002/pen.20886] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ellis G, Marco C, Gómez MA, Collar EP, García‐Martínez JM. The Study of Heterogeneous Polymer Systems by Synchrotron Infrared Microscopy. J MACROMOL SCI B 2006. [DOI: 10.1081/mb-120027762] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- G. Ellis
- a Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva 3, 28006 , Madrid , Spain
| | - C. Marco
- a Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva 3, 28006 , Madrid , Spain
| | - M. A. Gómez
- a Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva 3, 28006 , Madrid , Spain
| | - E. P. Collar
- a Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva 3, 28006 , Madrid , Spain
| | - J. Ma. García‐Martínez
- a Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva 3, 28006 , Madrid , Spain
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Ellis G, Gómez MA, Marco C. Synchrotron Infrared Microscopy Study of the Crystalline Morphology of the Interphase in Polypropylene/LCP‐Fiber Model Composites. J MACROMOL SCI B 2006. [DOI: 10.1081/mb-120027758] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- G. Ellis
- a Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva 3, 28006 , Madrid , Spain
| | - M. A. Gómez
- a Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva 3, 28006 , Madrid , Spain
| | - C. Marco
- a Departamento de Física e Ingeniería , Instituto de Ciencia y Tecnología de Polímeros, CSIC , Juan de la Cierva 3, 28006 , Madrid , Spain
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Naffakh M, Gómez MA, Ellis G, Marco C. Isothermal crystallization kinetics of PEEK/Vectra® blends by DSC and time-resolved synchrotron X-ray diffraction. POLYM ENG SCI 2006. [DOI: 10.1002/pen.20619] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bouza R, Marco C, Martín Z, Gómez MA, Ellis G, Barral L. Dynamic crystallization of polypropylene and wood-based composites. J Appl Polym Sci 2006. [DOI: 10.1002/app.25211] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Rodríguez Santiago JM, Muñoz E, Martí M, Quintana S, Veloso E, Marco C. Metastatic lymph node ratio as a prognostic factor in gastric cancer. Eur J Surg Oncol 2005; 31:59-66. [PMID: 15642427 DOI: 10.1016/j.ejso.2004.09.013] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2004] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND There is an association between the number of resected lymph node and the number of metastatic lymph nodes in gastric cancer, suggesting that pN category could be influenced by the extension of the lymphadenectomy. This study evaluates this association and proposes a comprehensive use of the ratio as prognostic factor. METHOD Review of 183 consecutive patients with gastric adenocarcinoma. The association between the number of resected lymph nodes and the number of metastatic lymph nodes was analysed and evaluated with other prognostic factors. RESULTS The number of lymph node metastases increased with the number of resected lymph nodes. The lymph node ratio was a better prognostic factor than the number of metastatic lymph nodes. CONCLUSIONS The metastatic lymph node ratio seems to be a good prognostic factor, but needs further evaluation.
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Affiliation(s)
- J M Rodríguez Santiago
- Upper Gastrointestinal Surgery Unit, Department of Surgery, Hospital de Mutua de Terrassa, University of Barcelona, 08221 Terrassa, Barcelona, Spain.
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Naffakh M, Gómez M, Marco C, Ellis G. Kinetic analysis of thermo-oxidative degradation of PEEK/thermotropic liquid crystalline polymer blends. POLYM ENG SCI 2005. [DOI: 10.1002/pen.20439] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Laredo E, Grimau M, Bello A, Sánchez F, Gómez MA, Marco C, Campoy I, Arribas JM. The effect of compatibilization on the dynamic properties of polypropylene/nylon-6 blends studied by broad band dielectric spectroscopy. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/polb.20421] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Torre J, Cortázar M, Gómez M, Ellis G, Marco C. Melting behavior in blends of isotactic polypropylene and a liquid crystalline polymer. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/polb.20062] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Cugat E, Martí M, Muñoz A, Álvarez M, Hoyela C, Marco C. La imagen del mes. Cir Esp 2004. [DOI: 10.1016/s0009-739x(04)72287-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Marco C, Ellis G, Gómez MA, Arribas JM. Analysis of the isothermal crystallization of isotactic polypropylene nucleated with sorbitol derivatives. J Appl Polym Sci 2003. [DOI: 10.1002/app.11935] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ornaque I, Cugat E, Marco C, Souto JM, Peláez X, Gutiérrez S, Aliaga L. [Laparoscopic resection of hepatic hydatid cyst under general anesthesia with remifentanil infusion]. Rev Esp Anestesiol Reanim 2003; 50:46-9. [PMID: 12701265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
We report the case of a 52-year-old woman who underwent scheduled laparoscopic resection of a hydatid liver cyst under general anesthesia by infusion of remifentanil and sevoflurane. Surgery was uneventful, although invasive monitoring was required, just as it would have been in major open abdominal surgery, given the risk of bleeding secondary to organ manipulation, the risk of anaphylactic shock related to the etiology of the cyst and the possibility of gas embolism related to laparoscopy. The concept of "minimally invasive" surgery has developed thanks to continued progress in laparoscopy. The considerable advantages of such procedures in comparison with "open" or "conventional" surgery has led to their use with organs such as the liver, which in principle require caution. In such cases, the anesthesiologist must take an approach that is not as simple or minimalist as the term "minimally invasive" might lead us to expect.
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Affiliation(s)
- I Ornaque
- Servicio de Anestesiología y Reanimación, Centro Médico Teknon Vilana, 12 08022 Barcelona
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Marco C, Gómez MA, Ellis G, Arribas JM. Activity of a β-nucleating agent for isotactic polypropylene and its influence on polymorphic transitions. J Appl Polym Sci 2002. [DOI: 10.1002/app.10811] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bowmer TN, Haddon RC, Chichester-Hicks S, Gomez MA, Marco C, Fatou JG. Effect of substituents on the thermal transitions and degradation behavior of poly[bis(R-phenoxy)phosphazenes]. Macromolecules 2002. [DOI: 10.1021/ma00017a016] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Del Pino J, Gomez MA, Marco C, Ellis G, Fatou JG. Polymorphism in liquid crystalline poly[tetramethylene terephthaloyl bis(4-oxybenzoate)]. Macromolecules 2002. [DOI: 10.1021/ma00044a027] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Broze G, Jerome R, Teyssie P, Marco C. Halato-telechelic polymers. 6. Viscoelastic properties of solutions of alkaline earth α,ι-dicarboxylato polybutadiene. Macromolecules 2002. [DOI: 10.1021/ma00240a033] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Broze G, Jerome R, Teyssie P, Marco C. Halato-telechelic polymers. 8. Dependence of the viscoelastic behavior on the prepolymer molecular weight. Macromolecules 2002. [DOI: 10.1021/ma00245a016] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Campoy I, Marco C, Gomez MA, Fatou JG. Kinetics of three-dimensional ordering in the thermotropic liquid crystal poly(decamethylene-4,4'-diphenoxy terephthalate). Macromolecules 2002. [DOI: 10.1021/ma00043a023] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Marco C, Fatou JG, Gomez MA, Tanaka H, Tonelli AE. Molecular weight effect on the miscibility of poly(ethylene oxide) and isotactic poly(methyl methacrylate) in their blends. Macromolecules 2002. [DOI: 10.1021/ma00210a011] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hudson SD, Lovinger AJ, Gomez MA, Lorente J, Marco C, Fatou JG. Relationship between Mesophase and Semicrystalline Morphology in Smectic Liquid Crystalline Polymers. Macromolecules 2002. [DOI: 10.1021/ma00090a033] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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