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Cruces CL, Santillán LA, Silvera JF, Severino R, Rubin-de-Celis V, Chero JD. Two new species of dactylogyrids (Monogenea: Dactylogyridae) infecting the gill filaments of fishes in the southern Peruvian Amazon. Syst Parasitol 2024; 101:17. [PMID: 38267721 DOI: 10.1007/s11230-023-10143-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/18/2023] [Indexed: 01/26/2024]
Abstract
Two new dactylogyrid species were found infecting the gill filaments of two freshwater fishes collected in the Amazon River basin around Madre de Dios, Peru, namely, Demidospermus wilveri n. sp. from Loricaria sp. (Siluriformes: Loricariidae), and Notozothecium agusti n. sp. from Brycon amazonicus (Spix & Agassiz) (Characiformes: Bryconidae). Demidospermus wilveri n. sp. is characterized by having the following combination of characteristics: (1) a male copulatory organ (MCO) with 1½ rings and a spoon-shaped distal end, (2) an accessory piece with expanded distal end, (3) dorsal and ventral bars with broadly V-shaped and expanded ends, and (4) hooks similar in size. Notozothecium agusti n. sp. differs from its ten congeners by the following combination of characteristics: (1) a coiled MCO with 1½ rings and a sinuous accessory piece with kidney-shaped distal end, (2) an rod-shaped and straight dorsal bar, (3) and anchors with robust superficial roots. Demidospermus wilveri n. sp. represents the thirty-second species in the genus, the eighth from Peru and the fifth parasitising a loricariid catfish from the Peruvian Amazon. Notozothecium agusti n. sp. is the second species of the genus described in Peru and the first species infecting a bryconid host.
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Affiliation(s)
- Celso L Cruces
- Laboratorio de Genómica y Biología Evolutiva, Instituto de Ciencias y Tecnología, Universidad Ricardo Palma (URP), Av. Alfredo Benavides 5440,Santiago de Surco, Lima, Peru
| | - Luis A Santillán
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru
| | - Jordan F Silvera
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru
| | - Ruperto Severino
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru
| | - Veronica Rubin-de-Celis
- Laboratorio de Genómica y Biología Evolutiva, Instituto de Ciencias y Tecnología, Universidad Ricardo Palma (URP), Av. Alfredo Benavides 5440,Santiago de Surco, Lima, Peru
| | - Jhon D Chero
- Laboratorio de Genómica y Biología Evolutiva, Instituto de Ciencias y Tecnología, Universidad Ricardo Palma (URP), Av. Alfredo Benavides 5440,Santiago de Surco, Lima, Peru.
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru.
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2
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Lopez DF, Quiñones MM, Lopez JL, Esqueche CA, Vasquez AO, Severino R, Chero JD. A redescription of Hedruris moniezi Ibáñez & Córdova, 1976 (Nematoda: Hedruridae), an endoparasite of the Titicaca water frog Telmatobius culeus (Garman, 1876) (Anura: Telmatobiidae), with comments on all other known Hedruris species in Peru. Syst Parasitol 2023; 100:505-512. [PMID: 37322305 DOI: 10.1007/s11230-023-10100-9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023]
Abstract
Hedruris moniezi Ibáñez & Córdova, 1976 (Nematoda: Hedruridae) was described using light and scanning electron microscopy (SEM) based on specimens collected from the stomach of Telmatobius culeus (Anura: Telmatobiidae) in Peru. We observed some characteristics not reported previously, including sessile and pedunculated papillae and amphid on the pseudolabia, bifid deirids, morphology of the retractable chitinous hook, morphology and arrangement of the plates on ventral surface of the posterior end of the males, and arrangement of caudal papillae. Telmatobius culeus represents a new host of H. moniezi. In addition, H. basilichtensis Mateo, 1971 is considered to be a junior synonym of H. oriestae Moniez, 1889. A key to valid species of Hedruris in Peru is provided.
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Affiliation(s)
- David F Lopez
- Laboratorio de Zoología, Facultad de Ciencias Biológicas, Universidad Ricardo Palma (URP), Av. Alfredo Benavides 5440, Santiago de Surco, Lima, Peru
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru
| | - Mauro M Quiñones
- Laboratorio de Biotecnología, Facultad de Ciencias Biológicas, Universidad Ricardo Palma (URP), Av. Alfredo Benavides 5440 Santiago de Surco, Lima, Peru
| | - Jorge L Lopez
- Laboratorio de Diversidad Vegetal, Escuela Profesional de Biología, Facultad de Ciencias Naturales y Matemática, Universidad Nacional Federico Villarreal (UNFV), 15007, El Agustino, Lima, Peru
| | - Carlos A Esqueche
- Laboratorio de Microbiología, Escuela Profesional de Biología, Facultad de Ciencias Naturales y Matemática, Universidad Nacional Federico Villarreal (UNFV), Código postal 15007, El Agustino, Lima, Peru
| | - Ahuber O Vasquez
- Laboratorio de Geografía y Medio Ambiente, Escuela Profesional de Ingeniería Ambiental, Facultad de Ingeniería Geográfica, ambiental y Ecoturismo, Universidad Nacional Federico Villarreal (UNFV), Av. Oscar R. Benavides, 450, Lima, Peru
| | - Ruperto Severino
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru
| | - Jhon D Chero
- Laboratorio de Zoología, Facultad de Ciencias Biológicas, Universidad Ricardo Palma (URP), Av. Alfredo Benavides 5440, Santiago de Surco, Lima, Peru.
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru.
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3
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Cacique ER, Bello R, Zamora H, Mares K, Saéz G, Severino R, Cruces C, Chero JD. Four new species of Anenterotrema Stunkard, 1938 (Digenea: Dicrocoellidae) infecting phyllostomid bats in the Peruvian Amazon. Syst Parasitol 2023; 100:531-542. [PMID: 37340144 DOI: 10.1007/s11230-023-10103-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 03/07/2023] [Accepted: 06/06/2023] [Indexed: 06/22/2023]
Abstract
During a research of digeneans (Platyhelminthes: Trematoda) infecting leaf-nosed bats (Chiroptera: Phyllostomidae) from the Kawsay Biological Station in Madre de Dios, southeastern Peru, four new species were described based on light and scanning electron microscopy (SEM): Anenterotrema paramegacetabulum n. sp. from the seba's short-tailed bat Carollia perspicillata Linnaeus, A. hastati n. sp., A. kawsayense n. sp., and A. peruense n. sp. from the greater spear-nosed bat Phyllostomus hastatus (Pallas). Anenterotrema paramegacetabulum n. sp. differs from all congeners by having a terminal oral sucker, a transversely elongated ventral sucker without clamp-shaped, and by having the testes located immediately posterior to ventral sucker. Anenterotrema hastati n. sp. is easily differentiated from the other congeneric species by having an almost clamp-shaped oral sucker, well-developed cirrus sac, a bilobulated seminal receptacle, and a group of well-developed unicellular glands located anterolateral to cirrus sac. Anenterotrema kawsayense n. sp. is characterized by possessing protuberances on the anterior margin of the oral sucker. Anenterotrema peruense n. sp. is mainly characterized by having the testes located principally anterior to ventral sucker and the cirrus sac located perpendicular to midline of the body. The present finding brings to 12, the number of known species of Anenterotrema. A key to the species of Anenterotrema Stunkard, 1938 is provided.
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Affiliation(s)
- Edson R Cacique
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas (FCB), Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru
| | - Raúl Bello
- Kawsay Biological Station, Madre de Dios, Peru
| | - Hugo Zamora
- Kawsay Biological Station, Madre de Dios, Peru
- Museo de Historia Natural de la Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru
| | - Katherin Mares
- Museo de Historia Natural de la Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru
| | - Gloria Saéz
- Laboratorio de Parasitología General y Especializada, Facultad de Ciencias Naturales y Matemática, Universidad Nacional Federico Villarreal (UNFV), Código postal 15007, El Agustino, Lima, Peru
| | - Ruperto Severino
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas (FCB), Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru
| | - Celso Cruces
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas (FCB), Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru
- Programa de Pós-Graduação em Biologia Animal da Universidade Federal Rural do Rio de Janeiro, BR 465, Km 7, Seropédica, Rio de Janeiro, CEP 23890-000, Brazil
| | - Jhon D Chero
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas (FCB), Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela cuadra 34, Lima, Peru.
- Laboratorio de Zoología, Facultad de Ciencias Biológicas, Universidad Ricardo Palma (URP), Av. Alfredo Benavides 5440, Santiago de Surco, Lima, Peru.
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Velásquez-Rodriguez K, Reyes J, Steenkiste NVAN, Severino R, Brusa F. First records of marine microturbellarians (Platyhelminthes: Rhabdocoela, Fecampiida and Prolecithophora) from Peru, with the description of a new species. Zootaxa 2023; 5258:501-523. [PMID: 37044579 DOI: 10.11646/zootaxa.5258.5.1] [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] [Received: 03/30/2023] [Indexed: 04/14/2023]
Abstract
The marine microturbellarian diversity is scarcely known from the Pacific coastline of South America. The coastal margin of Peru is highly influenced by cold-water currents (Humboldt Current System). These cold-water currents play important roles in shaping the marine species diversity in this area. However, there are no previous records of marine microturbellarians for Peru. Here, we describe a new species of Rhabdocoela and report on five other species of marine microturbellarians for this country. Carcharodorhynchus giaae n. sp. (Kalyptorhynchia, Schizorhynchidae), can be identified based on the configuration of the proboscis lips and the male and female genital systems. The male copulatory organ lacks a cirrus, but has a funnel-like, curved stylet with three pairs of spines along it, which distinguishes this species from its congeners. The female system has a vagina with a sclerotized, heavily coiled structure - a feature not mentioned in any known species of the same genus. In addition, we describe noteworthy features for another rhabdocoel, Trigonostomum galapagoense (Dalytyphloplanida, Trigonostomidae). Finally, we provide new records for three rhabdocoel species (Alcha evelinae, Itaipusa divae, Utelga heinckei), one species of Fecampiida (Urastoma cyprinae), and an unidentified species of Prolecithophora.
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Affiliation(s)
| | - Jhoe Reyes
- Facultad de Ciencias de la Vida y de la Salud; Universidad Científica del Sur; Lima; Perú..
| | - Niels VAN Steenkiste
- Departments of Botany and Zoology; University of British Columbia; University Blvd; 3156-6270.
| | | | - Francisco Brusa
- Laboratorio de Zoología de Invertebrados; Facultad de Ciencias Biológicas; Universidad Nacional Mayor de San Marcos; Lima; Perú..
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Reyes J, Severino R, Brusa F. New records of free-living microturbellarians from the Chillón River, Peru. Neotropical Biodiversity 2022. [DOI: 10.1080/23766808.2022.2040348] [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: 10/19/2022] Open
Affiliation(s)
- Jhoe Reyes
- Facultad de Ciencias de la Vida y de la Salud, Universidad Científica Del Sur, Lima, Perú
| | - Ruperto Severino
- Laboratorio de Zoología de Invertebrados, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Perú
| | - Francisco Brusa
- División Zoología Invertebrados, Facultad de Ciencias Naturales Y Museo, Universidad Nacional de La Plata, La Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (Conicet), Argentina
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6
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Reyes J, Velásquez-Rodriguez K, Severino R, Brusa F. New record of Phrikoceros inca (Polycladida, Cotylea) from the central coast of Peru, with a review of polyclads known from Peruvian waters. Studies on Neotropical Fauna and Environment 2020. [DOI: 10.1080/01650521.2020.1861889] [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] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Jhoe Reyes
- Laboratorio de Zoología de Invertebrados, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
- Laboratório de Biologia de Parasitos de Organismos Aquáticos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - Karen Velásquez-Rodriguez
- Laboratorio de Zoología de Invertebrados, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Ruperto Severino
- Laboratorio de Zoología de Invertebrados, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Francisco Brusa
- División Zoología Invertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, La Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
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7
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Lazo F, Vivas-Ruiz DE, Sandoval GA, Rodríguez EF, Kozlova EE, Costal-Oliveira F, Chávez-Olórtegui C, Severino R, Yarlequé A, Sanchez EF. Biochemical, biological and molecular characterization of an L-Amino acid oxidase (LAAO) purified from Bothrops pictus Peruvian snake venom. Toxicon 2017; 139:74-86. [DOI: 10.1016/j.toxicon.2017.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 09/18/2017] [Accepted: 10/08/2017] [Indexed: 11/26/2022]
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Rangel LF, Rocha S, Casal G, Castro R, Severino R, Azevedo C, Cavaleiro F, Santos MJ. Life cycle inference and phylogeny of Ortholinea labracis n. sp. (Myxosporea: Ortholineidae), a parasite of the European seabass Dicentrarchus labrax (Teleostei: Moronidae), in a Portuguese fish farm. J Fish Dis 2017; 40:243-262. [PMID: 27307300 DOI: 10.1111/jfd.12508] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 04/22/2016] [Accepted: 04/25/2016] [Indexed: 06/06/2023]
Abstract
Ortholinea labracis n. sp. is described and its life cycle is inferred from a Southern Portuguese fish farm, with basis on microscopic and molecular procedures. This myxosporean parasite infects the urinary bladder of the European seabass Dicentrarchus labrax and the intestinal epithelium of a marine oligochaete of the genus Tectidrilus. Myxospores subspherical in valvular view and ellipsoidal in sutural view measuring 7.6 ± 0.3 (6.8-8.7) μm in length, 7.2 ± 0.2 (6.7-7.7) μm in width and 6.5 ± 0.4 (5.8-7.7) μm in thickness. Two polar capsules, 3.0 ± 0.2 (2.6-3.4) μm long and 2.4 ± 0.1 (2.0-2.9) μm wide, located at the same level, but with divergent orientation and opening to opposite sides of the suture line. Sequencing of the SSU rRNA gene revealed a similarity of 100% between the analysed myxospores and triactinomyxon actinospores. The phylogenetic setting of O. labracis n. sp. shows subgrouping in correlation with tissue tropism, but identifies this parasite as another exception to the main division of Myxosporea into the main freshwater and marine lineages.
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Affiliation(s)
- L F Rangel
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - S Rocha
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
- Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - G Casal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
- Department of Sciences, University Institute of Health Sciences, CESPU, Gandra, Portugal
| | - R Castro
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - R Severino
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - C Azevedo
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
- Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
- Zoology Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - F Cavaleiro
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - M J Santos
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
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Toscano E, Severino R. Brachionidae (Rotifera: Monogononta) de la albufera El Paraíso y el reporte de Brachionus ibericusen el Perú. Rev peru biol 2013. [DOI: 10.15381/rpb.v20i2.2683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Guillén G, Morales E, Severino R. Adiciones a la fauna de protozoarios de los Pantanos de Villa, Lima, Perú. Rev peru biol 2013. [DOI: 10.15381/rpb.v10i2.2500] [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: 12/01/2022] Open
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Elefante A, Caranci F, Del Basso De Caro ML, Peca C, Guadagno E, Severino R, Mariniello G, Maiuri F. Paravertebral high cervical chordoma. A case report. Neuroradiol J 2013; 26:227-32. [PMID: 23859247 DOI: 10.1177/197140091302600214] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 04/13/2013] [Indexed: 11/17/2022] Open
Abstract
Spinal chordomas are more often located on the midline and are associated with marked destruction of the vertebral bodies. We report a rare case of large cervical (C2-C3) right lateral paravertebral chordoma extending into the spinal canal through a very enlarged intervertebral foramen. The tumor was initially diagnosed as a mucous adenocarcinoma on a percutaneous needle biopsy. However, the neuroradiological features, including the well-defined tumor margins, the regular and sclerosing lytic bone changes with regular enlargement of the intervertebral C2-C3 foramen, were in favor of a more slowly growing lesion, such as schwannoma or neurofibroma. At surgery a well-demarcated capsulated tumor involving the nerve root was partially resected. Histology was in favor of a low-grade chordoma (Ki-67/MIB-1<1%). Postoperative proton beam therapy was also performed. The differential neuroradiological diagnosis is discussed.
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Affiliation(s)
- A Elefante
- Advanced Biomedical Sciences, Section of Neuroradiology, Federico II University, Naples, Italy.
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12
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Mariniello G, Giamundo A, Donzelli R, Severino R, Russo C, Elefante A, Maiuri F. Intracranial hypertension due to meningioma of the unique transverse sinus. Neuroradiol J 2013; 26:209-12. [PMID: 23859244 DOI: 10.1177/197140091302600211] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 03/21/2013] [Indexed: 11/17/2022] Open
Abstract
We describe a 28-year-old woman with intracranial hypertension due to a meningioma invading the unique transverse sinus (with absent contralateral sinus). Clinical remission and normalization of orbital echography were obtained by resection of the intradural tumor and peeling of the dural attachment. In such cases, resection and reconstruction of the involved sinus segment is at high risk of venous infarction. Endovascular stenting of the obstructed sinus is a valid alternative when the stenosis is not remarkable. Single tumor removal may lead to partial sinus decompression and increased venous flow, resulting in long-term clinical remission.
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Affiliation(s)
- G Mariniello
- Department of Neurological Sciences, Section of Neurosurgery, Federico II University of Naples, Naples, Italy.
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13
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Faggiano A, Ramundo V, Dicitore A, Castiglioni S, Borghi MO, Severino R, Ferolla P, Crinò L, Abbruzzese A, Sperlongano P, Caraglia M, Ferone D, Hofland L, Colao A, Vitale G. Everolimus is an active agent in medullary thyroid cancer: a clinical and in vitro study. J Cell Mol Med 2012; 16:1563-72. [PMID: 21883896 PMCID: PMC3823224 DOI: 10.1111/j.1582-4934.2011.01438.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Everolimus, an mTOR inhibitor, which has been demonstrated to induce anti-tumour effects in different types of neuroendocrine tumours, has never been evaluated in patients with medullary thyroid cancer (MTC). The aim of this study was to evaluate the in vitro and in vivo effects of everolimus in combination with octreotide in MTC. Two patients with progressive metastatic MTC and high calcitonin levels were treated with everolimus 5–10 mg/day. Both patients were under treatment with octreotide LAR at the study entry. An in vitro study was also performed to assess everolimus effects on MTC cell lines (TT and MZ-CRC-1 cells). A tumour response was observed in both patients. Serum calcitonin decreased by 86% in patient 1 and by 42% in patient 2. In TT and MZ-CRC-1 cells, everolimus induced a significant dose-dependent inhibition in cell proliferation. This effect seems to be related to a cell cycle arrest in G0/G1 phase in both cell lines and to the induction of cellular senescence in TT cells. Everolimus in combination with octreotide may be active as anti-tumour therapy in patients with progressive metastatic MTC, suggesting to further evaluate this agent in MTC patients in a large prospective study.
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Ferolla P, Faggiano A, Grimaldi F, Ferone D, Scarpelli G, Ramundo V, Severino R, Bellucci MC, Camera LM, Lombardi G, Angeletti G, Colao A. Shortened interval of long-acting octreotide administration is effective in patients with well-differentiated neuroendocrine carcinomas in progression on standard doses. J Endocrinol Invest 2012; 35:326-31. [PMID: 21757992 DOI: 10.3275/7869] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND In patients with well-differentiated (WD) neuroendocrine tumors (NET), long-acting octreotide (LAR), conventionally administered at a dose of 30 mg every 28 days, has well-documented anti-secretive but limited antiproliferative effects. AIM The objective of this study was to evaluate a different schedule of LAR treatment consistent with a shorter interval between administrations (21 days) in WDNET patients with progressive disease at standard-dose interval. SUBJECTS AND METHODS Twenty-eight patients followed for diagnosis and therapy of WDNET who had tumor progression during therapy with LAR 30 mg every 28 days were enrolled. Clinical, biological, and objective tumor response was evaluated after LAR 30 mg every 21 days. Time to progression was also evaluated after LAR 30 mg every 21 days and compared to LAR 30 mg every 28 days. RESULTS The treatment with LAR 30 mg every 21 days resulted in complete and partial control of clinical symptoms in 40% and 60% of cases, respectively. Circulating neuroendocrine markers were significantly decreased in 30% of cases. A stabilization of disease was obtained in 93% and objective response in 7%. The median time to progression was significantly longer by using the shortened interval of LAR administration as compared to the standard one (30 vs 9 months, p<0.0001). The treatment was safe and well tolerated. CONCLUSIONS The shortened schedule of LAR administration was able to re-institute control of clinical symptoms, to decrease level of circulating neuroendocrine markers and to increase time to progression in patients previously escaping from a standard schedule treatment.
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Affiliation(s)
- P Ferolla
- Multidisciplinary Group for Diagnosis and Treatment of Neuroendocrine Tumors, Umbria Regional Cancer Network, Perugia, Italy
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Ramundo V, Milone F, Severino R, Savastano S, Di Somma C, Vuolo L, De Luca L, Lombardi G, Colao A, Faggiano A. Clinical and prognostic implications of the genetic diagnosis of hereditary NET syndromes in asymptomatic patients. Horm Metab Res 2011; 43:794-800. [PMID: 22009375 DOI: 10.1055/s-0031-1286324] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [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: 10/16/2022]
Abstract
Neuroendocrine tumors (NETs) can be sporadic or they can arise in complex hereditary syndromes. Patients with hereditary NETs can be identified before the development of tumors by performing genetic screenings. The aim of the study was to evaluate the clinical and prognostic impact of a preclinical genetic screening in subjects with hereditary NET syndromes. 46 subjects referred for hereditary NET syndrome [22 MEN1, 12 MEN2, 12 Familial Paragangliomatosis (FPGL)] were enrolled and divided in 2 groups (group A, 20 subjects with clinical appearance of NET before the genetic diagnosis; group B, 26 subjects with genetic diagnosis of hereditary NET syndromes before the clinical appearance of NETs). The main outcome measures were severity of disease, prognosis, and survival. The rate of surgery for MEN1-, MEN2-, FPGL4-related tumors was 90% in group A and 35% in group B (p<0.01). Both symptoms related to tumors and symptoms related to therapies were significantly less frequent in group B than in group A (p<0.05). Tumor stage was locally advanced or metastatic in 50% of group A and in no one of group B (p<0.01). The mortality rate was 25% in group A and 0% in group B (p<0.05). An early genetic screening for hereditary NET syndromes results in an improvement in clinical presentation and morbidity. A potential impact of the genetic screening on the mortality rate of these subjects is suggested and needs to be investigated in further and more appropriate studies.
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Affiliation(s)
- V Ramundo
- Department of Molecular and Clinical Endocrinology and Oncology, Federico II University, Naples, Italy
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Faggiano A, Di Somma C, Ramundo V, Severino R, Vuolo L, Coppola A, Panico F, Savastano S, Lombardi G, Colao A, Gasperi M. Cinacalcet hydrochloride in combination with alendronate normalizes hypercalcemia and improves bone mineral density in patients with primary hyperparathyroidism. Endocrine 2011; 39:283-7. [PMID: 21445714 DOI: 10.1007/s12020-011-9459-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [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: 03/03/2011] [Accepted: 03/15/2011] [Indexed: 11/30/2022]
Abstract
Cinacalcet is effective in controlling the biochemical abnormalities in patients with primary hyperparathyroidism (PHPT) but it seems to be less effective on bone mineral density (BMD). In the same patients, bisphosphonates are reported to be effective on bone resorption but less effective on calcium and PTH excess. In this study, the efficacy of cinacalcet in combination with alendronate has been retrospectively evaluated in patients with PHPT. Twenty-three patients with PHPT who had not been operated were retrospectively investigated. Cinacalcet was evaluated in combination with alendronate in 10 of the 23 patients, and in monotherapy in 13 other patients. Serum calcium, phosphorus and PTH, 24 h urine calcium and phosphorus as well as BMD, evaluated by DXA and expressed as T-score, were measured before and after treatment. In all patients serum calcium and phosphorus and urinary calcium excretion were effectively and stably controlled and PTH was significantly decreased after treatment. There was no difference in the rate of serum calcium and PTH decrease between subjects treated with cinacalcet plus alendronate and those treated with cinacalcet alone. T-score increased by 9.6% at lumbar spine and 3.9% at femur level in the cinacalcet plus alendronate subgroup and was unchanged in the cinacalcet subgroup (P < 0.01). In patients with PHPT, the biochemical abnormalities are rapidly improved by cinacalcet regardless from the administration in monotherapy or in combination with alendronate. BMD is significantly improved in patients receiving cinacalcet plus alendronate and stable in those receiving cinacalcet in monotherapy.
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Affiliation(s)
- A Faggiano
- IRCCS Fondazione SDN, Via E. Gianturco 113, 80143, Naples, Italy.
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Faggiano A, Severino R, Ramundo V, Russo R, Vuolo L, Del Prete M, Marciello F, Lombardi G, Cianciaruso B, Colao A, Pisani A. Thyroid function in Fabry disease before and after enzyme replacement therapy. MINERVA ENDOCRINOL 2011; 36:1-5. [PMID: 21460782] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
UNLABELLED AM: Patients with Fabry disease (FD), a genetic disorder caused by lysosomal a-galactosidase-A enzyme deficiency and characterized by a systemic accumulation of globotriaosylceramides, present high prevalence of subclinical hypothyroidism. The pathogenic mechanism is thought not to be related to anti-thyroid autoimmunity and may be dependent by intra-thyroid lipid accumulation. In this study, it was investigated whether thyroid function recovers in FD after long-term enzyme replacement therapy (ERT). METHODS Study population included 14 FD patients (7 females, 7 males, aged 21-62 years) and 14 sex- and age-matched normal subjects. Thyroid function was evaluated in each patient at baseline and after the beginning of ERT with rh-a-galactosidase-A (1 mg/kg/BW every 2 weeks) for three years. RESULTS TSH levels were higher in FD patients than in controls (P<0.05). In FD patients, TSH levels were higher before than after ERT (1.9±0.2 vs 1.2±0.2 mU/L, P<0.01) while fT3 and fT4 levels were normal at baseline and unchanged after ERT. At baseline, TSH levels were >3 mU/L in three patients and normalize after ERT. Anti-Tg and/or anti-TPO titres were positive in 14% of patients and 21% of controls. After ERT, the rate of autoimmunity was unchanged. At the thyroid ultrasonography, a slight hypoechoic pattern was found in 71% of patients at baseline and decreased to 43% after ERT. CONCLUSION Primary hypothyroidism in FD patients is reverted after long-term ERT. A screening of thyroid function and periodical re-evaluation during ERT is mandatory in all FD patients.
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Affiliation(s)
- A Faggiano
- Department of Molecular and Clinical Endocrinology and Oncology, Federico II University, Naples, Italy.
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Faggiano A, Milone F, Ramundo V, Chiofalo MG, Ventre I, Giannattasio R, Severino R, Lombardi G, Colao A, Pezzullo L. A decrease of calcitonin serum concentrations less than 50 percent 30 minutes after thyroid surgery suggests incomplete C-cell tumor tissue removal. J Clin Endocrinol Metab 2010; 95:E32-6. [PMID: 20534767 DOI: 10.1210/jc.2010-0045] [Citation(s) in RCA: 13] [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: 11/19/2022]
Abstract
CONTEXT AND OBJECTIVES The prognosis of medullary thyroid carcinoma (MTC) depends on the completeness of the first surgical treatment. To date, it is not possible to predict whether the tumor has been completely removed after surgery. The aim of this study was to evaluate the reliability of an intraoperative calcitonin monitoring as a predictor of the final outcome after surgery in patients with MTC. PATIENTS AND METHODS Twenty patients underwent total thyroidectomy and central lymph node dissection on the basis of a positive pentagastrin test. In six cases a preoperative diagnosis of MTC was achieved at the cytological examination. During the surgical intervention, calcitonin was measured at the time of anesthesia, at the time of manipulation, and 10 and 30 min after surgical excision. At the histological examination, 10 patients had MTC and 10 had C cell hyperplasia. RESULTS As compared with calcitonin levels before thyroidectomy, a decrease of calcitonin greater than 50% 30 min after surgery was able to significantly distinguish patients who were cured from those who experienced persistence of disease. It was not possible to find a similar result when the decrease of calcitonin 10 min after surgery was considered. CONCLUSIONS A rate of calcitonin decrease less than 50% 30 min after thyroidectomy plus central neck lymph node dissection suggests the persistence of tumor tissue in patients operated for MTC. These results indicate that intraoperative calcitonin monitoring may be a useful tool to predict the completeness of surgery in patients with MTC.
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Affiliation(s)
- A Faggiano
- Istituto di Ricovero e Cura a Carattere Scientifico Fondazione SDN, Azienda Sanitaria Locale Napoli 1 Centro, 80143 Napoli, Italy.
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Milone F, Ramundo V, Chiofalo MG, Severino R, Paciolla I, Pezzullo L, Lombardi G, Colao A, Faggiano A. Predictive value of pentagastrin test for preoperative differential diagnosis between C-cell hyperplasia and medullary thyroid carcinoma in patients with moderately elevated basal calcitonin levels. Clin Endocrinol (Oxf) 2010; 73:85-8. [PMID: 20039894 DOI: 10.1111/j.1365-2265.2009.03759.x] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Medullary thyroid carcinoma (MTC) is a calcitonin (CT)-secreting neuroendocrine tumour originating from thyroid C cells. Serum CT concentrations are helpful in the early detection of MTC, while it is still unclear whether they can be used also for the differential diagnosis between MTC and C-cell hyperplasia (CCH), a precancerous condition in familial MTCs but with unclear clinical significance in sporadic MTCs. Nowadays, surgery is recommended in all patients with basal or pentagastrin (PG)-stimulated CT value of 100 pg/ml or more, without discriminating if they are affected with MTC or CCH only. The objective of this study was to investigate the utility of the PG test for CT in distinguishing CCH from MTC before surgery. PATIENTS AND METHODS Sixteen of 20 patients with thyroid nodules and basal CT levels between 15 and 100 ng/l had a positive PG test (>100 ng/l PG CT peak) and form the basis of the data analysis. A diagnosis of MTC was histologically proved on surgical samples in seven patients and of CCH in nine other patients. Four patients with neither FNAB nor PG test consistent with a diagnosis of MTC did not undergo thyroidectomy. RESULTS A peak of CT of 275 ng/l after PG was able to significantly distinguish patients with MTC from patients with CCH, with 100% sensitivity and 89% specificity (P = 0.002). PG-stimulated calcitonin levels >275 ng/l had a positive predictive value (PPV) value for diagnosis of MTC of 100%, and PG-stimulated calcitonin levels <275 had a PPV for the diagnosis of CCH of 89%. CONCLUSIONS A CT cut-off after PG of 275 ng/l is suggested to be highly predictive in distinguishing CCH from MTC before surgery, and this may be helpful in selecting patients for thyroid surgery.
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Affiliation(s)
- F Milone
- Department of Molecular and Clinical Endocrinology and Oncology, Federico II University, Via S. Pansini 5, Naples, Italy
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Mau MK, Glanz K, Severino R, Grove JS, Johnson B, Curb JD. Mediators of lifestyle behavior change in Native Hawaiians: initial findings from the Native Hawaiian Diabetes Intervention Program. Diabetes Care 2001; 24:1770-5. [PMID: 11574440 DOI: 10.2337/diacare.24.10.1770] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To examine the association of stage of change with diet and exercise behaviors in response to a lifestyle intervention for Native Hawaiians (NHs). RESEARCH DESIGN AND METHODS A family ('ohana) support lifestyle intervention was compared with a standard intervention in NHs with or at risk for diabetes in two rural communities in Hawaii (n = 147). Stage of change, as a hypothesized mediator of behavior change, and dietary and exercise behaviors were measured at baseline and at 1 year postintervention. RESULTS Stage of change was significantly associated with positive dietary and exercise behaviors. NHs receiving the 'ohana support (OS) intervention were more likely to advance from pre-action to action/maintenance for fat intake and physical activity than the group who received the standard intervention. Participants in the OS group who advanced from pre-action to action/maintenance showed more improvement in fat intake and physical activity than those in the standard group. CONCLUSIONS These initial findings suggest that stage of change is an important factor in mediating lifestyle behavior changes in persons with or at risk for diabetes and merits further study among minority populations at high risk for diabetes.
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Affiliation(s)
- M K Mau
- Department of Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii 96813, USA.
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21
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Hasaniya NW, Zayed FF, Faiz H, Severino R. Preinsertion local anesthesia at the trocar site improves perioperative pain and decreases costs of laparoscopic cholecystectomy. Surg Endosc 2001; 15:962-4. [PMID: 11605110 DOI: 10.1007/s004640000294] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2000] [Accepted: 04/04/2000] [Indexed: 10/26/2022]
Abstract
BACKGROUND Local anesthesia at the trocar site in laparoscopic cholecystectomy is expected to decrease postoperative pain and hence expedite recovery. The aims of this prospective randomized study were to investigate the effect of local anesthesia and to discover whether it is cost effective. METHODS For this study, 100 patients undergoing laparoscopic cholecystectomy were randomized into two groups. The 43 study patients were injected with 0.5% bupivacaine hydrochloride at the trocar site before the trocars were inserted. They then were compared with 41 control patients who received no local anesthesia. The remaining 16 patients were excluded from the study. The postoperative pain was evaluated at the standard four trocar sites at 4 h and 24 h after surgery on a scale 1 (the mildest pain the patient had ever experienced) to 10 (the most severe pain the patient had ever experienced). Postoperative pain medications and their cost were evaluated. RESULTS There was no difference between the two groups with regard to gender, age, weight, operative time, estimated operative blood loss, and bile culture. The patients who received bupivacaine at the trocar site clinically had less pain (p < 0.001 for all four sites) both at 4 and 24 h after surgery. The treatment group patients used less mepiridine and promethzine than the control group (p = 0.001 and 0.002, respectively) postoperatively. Overall, the patients who had local anesthesia used less postoperative pain and antiemetic medication than the control patients (p = 0.02). This afforded a significant decrease in the costs and charges of these medications (p = 0.004 and 0.005, respectively). Three patients in the study group were discharged from the hospital the day of surgery. CONCLUSION Preinsertion of local anesthesia at the trocar site in laparoscopic cholecystectomy significantly reduces postoperative pain and decreases medication usage costs.
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Affiliation(s)
- N W Hasaniya
- Department of Surgery, Lee County Community Hospital, Medical Arts Building Suite #2, West Alternative Highway 58, Pennington Gap, VA 24277,
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Bowles BJ, Machi J, Limm WM, Severino R, Oishi AJ, Furumoto NL, Wong LL, Oishi RH. Safety and efficacy of radiofrequency thermal ablation in advanced liver tumors. Arch Surg 2001; 136:864-9. [PMID: 11485520 DOI: 10.1001/archsurg.136.8.864] [Citation(s) in RCA: 156] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
HYPOTHESIS Radiofrequency thermal ablation (RFA) can be performed safely and effectively to control local disease in patients with advanced, unresectable liver tumors. DESIGN, SETTING, AND PATIENTS Prospective study of 76 patients with unresectable liver tumors who underwent RFA at a private tertiary referral hospital. INTERVENTIONS Ninety-nine RFA operations were performed to ablate 328 tumors. MAIN OUTCOME MEASURES Complications and local recurrence. RESULTS There was 1 death (1%), major complications occurred in 7 operations (7%), and minor complications occurred in 10 operations (10%). Local recurrence was identified in 30 tumors (9%) at a mean follow-up of 15 months. Size (P<.001), vascular invasion (P<.001), and total volume ablated (P<.001) were associated with recurrence but the number of tumors was not (P =.39). CONCLUSION Radiofrequency thermal ablation provides local control of advanced liver tumors with low recurrence and acceptable morbidity.
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Affiliation(s)
- B J Bowles
- Department of Surgery, University of Hawaii School of Medicine, Honolulu, HI, USA
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Abstract
Hepatocellular cancer (HCC) is a frequent cause of cancer death worldwide. Although successful screening programs exist in Asian countries, the role for screening in the United States is not clear. The purpose of this study is to determine if screening has an effect on survival in a predominantly Asian population in Hawaii. We retrospectively reviewed cases of HCC from 1993 to 1998 for demographic data, risk factors, symptoms, stage, treatment, and survival. Patients were divided into 3 groups according to presentation: symptomatic (S), asymptomatic (A), and asymptomatic but screened for disease (A/Sc). Kaplan-Meier analysis was performed on overall survival by group. Ninety-one patients were referred for HCC. There were 56 patients in group S, 19 patients in group A, and 16 patients in group A/Sc. Patients in group A/Sc survived significantly longer than those in group S (P =.009), with the former group having a median survival of 1,399 versus 234 days for group S. Median survival for group A was 545 days and did not differ significantly from the other groups. Patients who are asymptomatic and screened for HCC have an increased survival compared with those patients who present with symptoms. This may justify the use of a formal screening program for HCC in Hawaii, but we would need to investigate this prospectively.
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Affiliation(s)
- L L Wong
- Department of Surgery, University of Hawaii School of Medicine and St Francis Medical Center, Honolulu, HI, USA.
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Yun AG, Severino R, Reinker K. Attempted limb lengthenings beyond twenty percent of the initial bone length: results and complications. J Pediatr Orthop 2000; 20:151-9. [PMID: 10739273] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In response to historic guidelines suggesting limits to the amount of limb lengthening, we report the results and complications of those patients in whom the initial goal of lengthening exceeded 20% of the initial segment length. Thirty-one patients underwent a total of 35 attempted lengthenings with a mean follow-up of 38.6 months. Limb-length discrepancy was the primary indication in all but one case. With an average goal of 35% of the original bone length, we achieved a mean gain of 33%. Lengthening to within 2.5 cm was achieved in 31 (89%) of 35 cases, and significantly more successful with goals extending < or =55% of the initial bone length (p<0.05). Treatment times extended a mean of 8.7 months with a healing index of 37 days/cm. By Paley's classification scheme, all had problems, in addition to an average of 1.3 obstacles and 0.9 complications per segment lengthened. In 23 patients with extended follow-up, good to excellent results were achieved in 78%, and were significantly more successful with goals < or =55% (< or =0.05).
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Affiliation(s)
- A G Yun
- Shriners Hospital for Children, Honolulu, Hawaii 96826, USA
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Abstract
OBJECTIVE To determine the vaginal pH level that correlates with elevated parabasal cells in vaginal smears. METHODS Postmenopausal women presenting to a gynecology office for routine annual and incontinence examinations were studied prospectively. Women were excluded if they had vaginal infections or pelvic organ prolapses past the hymen. pH was measured and cytology smears made from the midvagina. A pathologist who was not aware of pH results evaluated the smears. Spearman rho was used to correlate pH and percentage of parabasal cells. Logistic regression was used to analyze the relationship between pH and increased parabasal cells in vaginal smears. Predictive values were used to select a pH level as a cutoff point to predict increased parabasal cells. RESULTS Seventy-four women were enrolled and 70 completed the study. The correlation coefficient between pH and percentage of parabasal cells was 0.6 (P < .001). Logistic regression showed association of pH with 20% or more parabasal cells (P < .001). Positive and negative predictive values for pH level above 6.0 as a predictor of 20% or more parabasal cells were 96.3% and 87.5%, respectively. The prevalence of elevated parabasal cells was 22.9%. CONCLUSION Vaginal pH above 6.0 correlates with high levels of parabasal cells (20% or more) from the midvagina.
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Affiliation(s)
- S Brizzolara
- Department of Obstetrics and Gynecology, John A. Burns School of Medicine, University of Hawaii, Honolulu 96826, USA.
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Abstract
PURPOSE The objective of this study was to determine the number of nodes that need to be examined to accurately reflect the histology of the regional lymphatics in colorectal carcinoma. PATIENTS AND METHODS Patients undergoing curative resection for T2 and T3 colorectal cancer between 1992 and 1996 were reviewed. Pathologic data from these patients were entered into a computerized database for storage, retrieval, and analysis. The major outcome measured was the number of nodes that need to be examined to achieve a node-positive rate consistent with that reported in the National Cancer Data Base (NCDB) report. RESULTS The number of nodes examined ranged from 0 to 78 (mean, 17 nodes). Node-negative patients had fewer nodes examined (mean, 14 nodes) than node-positive patients (mean, 20 nodes; P =.003). The entire sample had a node-positive rate of 38.8% (95% confidence interval [CI], 32% to 45.5%), not statistically different from that in the NCDB report. When at least 14 nodes were examined, the percent of patients with at least one positive node was 33.3% (95% CI, 24.6% to 42.3%), not statistically different from the NCDB report. CONCLUSION In a sample of patients statistically similar to the sample in the NCDB report, the examination of at least 14 nodes after resection of T2 or T3 carcinoma of the colon and rectum will accurately stage the lymphatic basin.
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Affiliation(s)
- J H Wong
- Department of Surgery, University of Hawaii School of Medicine, and Research Administration and Department of Pathology, Queen's Medical Center, Honolulu, HI 96813, USA.
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Fullerton JT, Parker KW, Severino R. Development and outcomes of the multiple-choice format national certification examination in nurse-midwifery and midwifery. J Nurse Midwifery 1997; 42:349-54. [PMID: 9277065 DOI: 10.1016/s0091-2182(97)00020-7] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The national certification examination in nurse-midwifery and midwifery now is offered exclusively in the multiple-choice format. The strategies used to develop equivalent examination forms are described. The manner of criterion-referenced standard setting is explained. Outcomes of the first five multiple-choice examination forms include an aggregate first-time failure rate of 8.3%. Multiple- and logistic-regression analyses indicate that examination scores of African-American and Hispanic ethnic candidates, and older candidates, are lower with regard to statistical significance; however, these differences are too modest to be of practical significance. No substantive relationship was observed between any demographic or academic variable and the probability of passing the examination. The experience gained by the ACNM Certification Council during development, administration, and evaluation of these first five multiple-choice examination forms has provided strong support for the transition to multiple-choice testing for the assessment of entry into practice of this competency-based profession.
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Affiliation(s)
- J T Fullerton
- University of Texas Health Science Center, School of Nursing, San Antonio, USA
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Yu M, Takanishi D, Myers SA, Takiguchi SA, Severino R, Hasaniya N, Levy MM, McNamara JJ. Frequency of mortality and myocardial infarction during maximizing oxygen delivery: a prospective, randomized trial. Crit Care Med 1995; 23:1025-32. [PMID: 7774212 DOI: 10.1097/00003246-199506000-00006] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.8] [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: 01/27/2023]
Abstract
OBJECTIVES To determine the frequency of myocardial infarction and mortality during treatment that increased oxygen delivery (DO2) to > or = 600 mL/min/m2. To define the characteristics of patients achieving a high DO2 without inotropes in order to guide future studies. DESIGN A prospective, randomized, controlled trial. SETTING Two surgical intensive care units at The Queen's Medical Center in the University of Hawaii Surgical Residency Program. PATIENTS Eighty-nine surgical patients (> or = 18 yrs of age), who were admitted to a surgical intensive care unit and who required pulmonary artery catheter monitoring, were selected for the study. Diagnoses included sepsis, septic shock, adult respiratory distress syndrome, or hypovolemic shock. Patients facing imminent death were excluded from the study. INTERVENTIONS The treatment group received fluid boluses, blood products, and inotropes, as needed, to achieve a DO2 of > or = 600 mL/min/m2 in the first 24 hrs. Using the same interventions, we treated the control group to reach a DO2 of 450 to 550 mL/min/m2. MEASUREMENTS AND MAIN RESULTS Hemodynamic measurements were obtained every 4 hrs until the pulmonary artery catheter was removed. DO2 and oxygen consumption were calculated by standard formulas. Serial creatine kinase myocardial fraction and electrocardiograms were documented for the first 48 hrs after study entry and for any new onset of arrhythmia or increasing hemodynamic instability. The patients who generated a high DO2 (> or = 600 mL/min/m2) with only preload treatment were reflective of patients with better cardiac reserve and low mortality rates. These patients, from both treatment and control groups, were excluded in the final analysis. The treatment group who received inotropes to achieve the high DO2 had a 14% mortality rate. Those patients who failed to achieve the high DO2 had a 67% mortality rate, and the control group who achieved a normal DO2 had a 62% mortality rate (p = .005). The frequency of myocardial infarction after study entry was 5.6% (five of 89 patients). This rate was not higher among the groups who received inotropes. Logistic regression analysis showed that age of > or = 50 yrs could be used to classify patients as not self-generating, with an 83% chance of being correct. CONCLUSIONS The group that required catecholamines to achieve a DO2 of > or = 600 mL/min/m2 had a lower mortality rate, with no increase in the frequency of myocardial infarction. Future prospective, controlled trials examining select groups of patients (age > or = 50 yrs) may demonstrate a difference between control and treatment groups by eliminating the majority of patients who generate the high DO2 with only preload augmentation.
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Affiliation(s)
- M Yu
- Department of Surgery, University of Hawaii, Queen's Medical Center, Honolulu, USA
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Verderber A, Gallagher KJ, Severino R. The effect of nursing interventions on transcutaneous oxygen and carbon dioxide tensions. West J Nurs Res 1995; 17:76-90; discussion 101-11. [PMID: 7863649 DOI: 10.1177/019394599501700107] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [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: 01/27/2023]
Abstract
The objectives for this study were to (a) establish reference values for transcutaneous oxygen tension (PtcO2) and carbon dioxide tension (PtcCO2) in response to three common patient events (a nurse-administered bed bath, passive range-of-motion exercises, and turning from side to side), and (b) determine if these physiological parameters vary according to the order in which the interventions are administered. A convenience sample of 30 healthy men and women were randomly assigned to one of three treatment groups, which designated the order in which the interventions were administered. Instrumentation included a Novametrix Model 840 transcutaneous monitor, a Dinamap BP monitor, a BoMed NCCOM3 cardiovascular monitor, and YSI 44008 thermistors. Analysis of ambient temperature at baseline revealed that the room was significantly cooler for men than for women. Analysis of covariance revealed no significant difference between men and women, except at baseline. The mean PtcO2 for each activity, as well as the post-activity period, was significantly higher than at baseline. There was a significant interaction between gender and activity for PtcO2 and PtcCO2. For both men and women, the mean changes in PtcCO2 were statistically significant but clinically insignificant. The order in which interventions were administered did not have a significant effect on either PtcO2 or PtcCO2. The results suggest that the physical activity associated with nursing interventions may significantly improve oxygen levels in the skin by stimulating overall cutaneous circulation.
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Affiliation(s)
- A Verderber
- School of Nursing, University of Hawaii at Manoa
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Abstract
The ACNM Certification Council is responsible for determining that the national certification examination in nurse-midwifery is not biased toward any protected group. Educational programs of nurse-midwifery have an interest in knowing that their admissions criteria and educational design have validity. Policy makers have an interest in both of these issues. Nine demographic and preadmission factors were investigated to identify their ability to predict performance on the nurse-midwifery national certification examination. This retrospective analysis included 1,046 candidates who took any one of five criterion-referenced, modified essay forms of the examination between January 1988 and April 1994. Multiple-regression analysis revealed that five factors explained 16.2% of the variance in certification examination performance. These factors included age (as age increased, scores decreased slightly), ethnicity (white and Hispanic candidates received higher scores compared with other groups), years of nursing practice prior to nurse-midwifery education (a slight positive influence for each additional year), highest educational degree obtained (those whose highest degree was the baccalaureate performed slightly better than candidates with no degree and candidates with graduate degrees), and academic level of the nurse-midwifery education program (certificate, master's, and doctoral level candidates all performed better than candidates from precertification programs; certificate candidates performed slightly better than master's candidates). However, even though these variables contributed to a statistically significant model, the actual degree of predicted difference in scores was of little practical significance. Variables that were not predictive of performance included marital status, U.S. versus foreign education either in nursing or in midwifery, and academic level of the registered nursing educational program [corrected].
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Abstract
The largest prospective study of freestanding birth centers was reported in 1989. This article reports on data from a comparison group of over 2,000 low-risk women who were admitted to hospital-care settings during the same period. The data on the hospitalized women were collected using the research methodology and data collection instruments developed for the birth center study. Consequently, these data offer the opportunity to observe differences that can be associated with birth site. Both groups of women experienced similar rates of serious antepartum and intrapartum health problems and maternal morbidity. However, even when controlling for complications and differences in sociodemographic characteristics, women in hospitals were more likely to receive an interventive style of labor and birth management. Neonatal outcomes were also similar, although the incidence of sustained fetal distress, prolapsed cord, and difficulty in establishing respirations were significantly greater in the hospital sample. Hospital care did not offer any advantage for women at lowest risk, and it was associated with increased intervention. The results of this study provide support for the National Birth Center Study's conclusion that birth centers offer a safe and acceptable alternative for selected pregnant women.
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Affiliation(s)
- J T Fullerton
- Department of Community and Family Medicine, University of California, San Diego School of Medicine, La Jolla 92093-0809
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Abstract
A 42-year-old woman had morning glory syndrome of the fundus of the right eye. The finding was related to chronic simple glaucoma and without pulsation of the staphyloma. The clinical symptoms and echographic pattern during the endocular hypertensive phase with normal intraocular pressure was studied after appropriate medication. This associated disease is attributed to the presence of a congenital malformation of the anterior chamber angle.
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Ordóñez A, Sabán J, Navascués I, Severino R, Suárez Terry R, Serrano Ríos M. [The blush or flush caused by chlorpropamide/alcohol (CAF) in non-insulin-dependent diabetes mellitus]. Rev Clin Esp 1985; 176:453-6. [PMID: 4023332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Serrano-Ríos M, Regueiro JR, Severino R, López-Larrea C, Arnaiz-Villena A. Several HLA haplotypic factors for both Type 1 (insulin-dependent) and Type 2 (non-insulin-dependent) diabetes. Diabetologia 1983; 25:71. [PMID: 6411512 DOI: 10.1007/bf00251901] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Serrano-Ríos M, Regueiro JR, Severino R, López-Larrea C, Arnaiz-Villena A. HLA antigens in insulin dependent and non-insulin dependent Spanish diabetic patients. Diabete Metab 1983; 9:116-20. [PMID: 6352349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
HLA-A, -B, -C, -DR and Bw4, Bw6 antigens and Bf and GLO alleles have been studied in a sample of Spanish insulin dependent (IDD) and non-insulin dependent (NIDD) diabetic patients. In IDD's there was no significant increase of B8 and B15; an increase of B18 secondary to that of DR3 has been found. DR4 was also increased in our sample. The GLO-S/DR2 haplotype was found to be decreased in IDD. It was observed that (Aw30)-B18-Cw5-Bw6-DR3-BfF1 is the commonest ID diabetic haplotype in our population. A relationship between DR4 and early IDD onset was also found. No association was found between HLA, or Bf, and age of onset, macroangiopathy, microangiopathy, retinopathy, nephropathy and peripheral or autonomic neuropathy. In NIDD's, DR3 was increased and DR3-non BfF1 and DR3-non B18 RRs were higher than DR3 RR.Aw30 and Cw5 tended to be decreased, although not significantly. These findings further support the hypothesis that several closely linked diabetic susceptibility factors may exist within an HLA haplotype (i.e.: (Aw30)-B18-Cw5-Bw6-DR3-BfF1 in our population) and that all of them may be necessary for developing an IDD form; lack of one or several factors might lead to the acquisition of the NIDD form.
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Minutillo U, Alvaro Miniero M, Severino R, De Rosa G, Pezza A, Erpici M, Papparella AM. [Importance of preventing retrobulbar optic neuropathy from ethambutol by the determination of zinc in the blood and by the Farnsworth test of color sense]. Arch Monaldi 1980; 35:217-28. [PMID: 7342904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Sacerdoti G, Severino R. [Autoimmunity and ocular pathology: critical review]. Clin Ter 1979; 89:339-63. [PMID: 394906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Minutillo U, Severino R, Erpici M, Pezza A, Cotticelli L, Peccarino V. [Importance of early performance of the Farnsworth test in the course of anti-tubercular therapy with ethambutol]. Arch Monaldi 1979; 34:70-82. [PMID: 554577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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