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https://www.readbyqxmd.com/read/28538505/thalassemia-major-and-priapism-a-case-report-of-an-adolescent
#1
Sibel Öz, Serhan Küpeli, Gülay Sezgin, İbrahim Bayram
Priapism is defined as a prolonged pathologic penile erection without sexual stimulation. In children, priapism secondary to sickle cell disease or hematological malignancy is a frequent condition. Appropriate treatment of priapism varies; the treatment is primarily etiological, conservative management. In the present report, we aimed to present a case of asplenic thalassemia major who developed priapism, improved with hydration and ibuprofen treatment. Clinicians should take into account that priapism can be encountered in patients with thalassemia major...
May 22, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28503278/conjugate-and-23-valent-pneumococcal-polysaccharide-booster-vaccination-in-asplenic-patients-with-thalassemia-major-a-randomized-clinical-trial-study
#2
Mohammad Sadegh Rezai, Javad Ghaffari, Mohammadreza Mahdavi, Amir Bahari, Shahram Ala
BACKGROUND: Pneumococcal vaccine provides protection against invasive pneumococcal disease in population at risk. This study was conducted to compare the antibody response to 13-valent pneumococcal conjugate vaccine and 23-valent pneumococcal polysaccharide vaccine in patients with thalassemia major. METHODS: A randomized cross-over clinical trial was performed on 50 asplenic patients with thalassemia major who referred to thalassemia center at Bouali Sina Hospital, Sari, Iran from 2013 to 2014...
2017: Caspian Journal of Internal Medicine
https://www.readbyqxmd.com/read/28498097/the-asplenic-patient-post-insult-immunocompetence-infection-and-vaccination
#3
Brandon Dionne, Walter Dehority, Meghan Brett, Thomas R Howdieshell
BACKGROUND: Splenic injury can occur through multiple mechanisms and may result in various degrees of residual immunocompetence. Functionally or anatomically asplenic patients are at higher risk for infection, particularly with encapsulated bacteria. Vaccination is recommended to prevent infection with these organisms; however, the recommendations are routinely updated, and vaccine selection and timing are complex. METHODS: Review of the pertinent English-language literature, including the recommendations of the U...
May 12, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28488145/anti-pneumococcal-vaccine-induced-cellular-immune-responses-in-post-traumatic-splenectomized-individuals
#4
Djursun Karasartova, Umut Gazi, Ozgur Tosun, Ayse S Gureser, Ibrahim T Sahiner, Mete Dolapci, Aysegul T Ozkan
PURPOSE: Splenectomy is associated with increased risk of overwhelming post-splenectomy infections despite proper anti-pneumococcal vaccination. As most studies concentrated on vaccination-induced humoral immunity, the cellular immune responses triggered in splenectomized patients are not yet well studied. The present study aims to investigate this area as it can contribute to the development of more effective vaccination strategies. METHODS: Five healthy and 14 splenectomized patients were vaccinated with pneumococcal conjugate polysaccharide vaccine (PCV) followed by pneumococcal polysaccharide vaccine according to the guidelines established by Advisory Committee on Immunization Practices...
May 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28464987/utilizing-pharmacy-intervention-in-asplenic-patients-to-improve-vaccination-rates
#5
Lindsey Rihtarchik, Claire V Murphy, Kyle Porter, Lisa Mostafavifar
PURPOSE: Asplenic patients are at increased risk for post-splenectomy infection caused by Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae type B (Hib), and vaccination rates against these organisms remain low. The purpose of this study was to evaluate vaccination rates before and after implementation of a pharmacist-driven electronic vaccination tracking system. METHODS: This retrospective cohort analysis compared adult splenectomy patients before and after implementation of a pharmacist-driven tracking system with a primary outcome of complete initial vaccination...
April 24, 2017: Research in Social & Administrative Pharmacy: RSAP
https://www.readbyqxmd.com/read/28425162/a-small-lick-will-sink-a-great-ship-fulminant-septicaemia-after-dog-saliva-wound-treatment-in-an-asplenic-patient
#6
Evi M Morandi, Reinhard Pauzenberger, Christoph Tasch, Ulrich M Rieger, Gerhard Pierer, Gabriel Djedovic
Capnocytophaga canimorsus is a bacterium transmitted through the saliva of dogs. An infection can cause severe sepsis with acral necrosis and is potentially fatal. Here, we report the case of a 41-year-old man who was infected through a wound that was licked by his dog. He went into septic shock with disseminated intravascular coagulation and subsequently lost both lower legs, his nose and all the fingers on both hands.
April 19, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28424248/splenic-ly6g-high-mature-and-ly6g-int-immature-neutrophils-contribute-to-eradication-of-s-pneumoniae
#7
Justin F Deniset, Bas G Surewaard, Woo-Yong Lee, Paul Kubes
The spleen plays an integral protective role against encapsulated bacterial infections. Our understanding of the associated mechanisms is limited to thymus-independent (TI) antibody production by the marginal zone (MZ) B cells, leaving the contribution of other splenic compartments such as the red pulp (RP) largely unexplored despite asplenic patients succumbing to the infection in the first 24 h, suggesting important antibody-independent mechanisms. In this study, using time-lapse intravital imaging of the spleen, we identify a tropism for Streptococcus pneumoniae in this organ mediated by tissue-resident MZ and RP macrophages and a protective role for two distinct splenic neutrophil populations (Ly6G(hi) and Ly6G(intermediate)) residing in the splenic RP...
May 1, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28405337/autoimmune-hemolytic-anemia-associated-with-babesiosis
#8
Roshni Narurkar, Aleksandra Mamorska-Dyga, John C Nelson, Delong Liu
BACKGROUND: Babesiosis is endemic in selected areas in North America. Babesia infection is commonly associated with anemia, thrombocytopenia, hyponatremia and elevated liver enzymes. Autoimmune hemolytic anemia (AIHA) is known to be caused by parasitic and viral infections but has not been well characterized. CASE PRESENTATION: We describe two cases diagnosed with babesiosis triggering severe AIHA. One case had history of splenectomy, and the other was an elderly patient...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28381345/vaccination-recommendations-for-the-adult-immunosuppressed-patient-a-systematic-review-and-comprehensive-field-synopsis
#9
REVIEW
Anthony Lopez, Xavier Mariette, Hervé Bachelez, Alexandre Belot, Bernard Bonnotte, Eric Hachulla, Morad Lahfa, Olivier Lortholary, Pierre Loulergue, Stéphane Paul, Xavier Roblin, Jean Sibilia, Mariela Blum, Silvio Danese, Stefanos Bonovas, Laurent Peyrin-Biroulet
BACKGROUND: Immunosuppressed patients are at risk of severe viral infections-related complications. National and international vaccination guidelines have been developed to decrease the mortality risk associated with these infections. However, a summary of these guidelines and the value of immunisation in this population is missing. OBJECTIVES: To summarize specific guidelines regarding vaccination in immunosuppressed patients. METHODS: We performed a literature search based on last update vaccine guidelines in immunosuppressed adult patients published between 1/1/2005-1/31/2016 in English or French language using PubMed, Cochrane and Embase, as well as relevant medical society websites...
June 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28273010/post-babesiosis-warm-autoimmune-hemolytic-anemia
#10
Ann E Woolley, Mary W Montgomery, William J Savage, Maureen O Achebe, Kathleen Dunford, Sarah Villeda, James H Maguire, Francisco M Marty
Background Babesiosis, a tickborne zoonotic disease caused by intraerythrocytic protozoa of the genus babesia, is characterized by nonimmune hemolytic anemia that resolves with antimicrobial treatment and clearance of parasitemia. The development of warm-antibody autoimmune hemolytic anemia (also known as warm autoimmune hemolytic anemia [WAHA]) in patients with babesiosis has not previously been well described. Methods After the observation of sporadic cases of WAHA that occurred after treatment of patients for babesiosis, we conducted a retrospective cohort study of all the patients with babesiosis who were cared for at our center from January 2009 through June 2016...
March 9, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28213046/splenectomy-as-a-destination-improving-quality-of-care-among-asplenic-veterans-through-a-travel-clinic
#11
Aaron P Mitchell, Joel C Boggan, Karen Lau, David L Simel
BACKGROUND: Asplenic patients are at risk for severe infections, but adherence to recommended preventive education and vaccination is poor. The goal of this study was to demonstrate that a targeted intervention can improve vaccination rates in a population of asplenic veterans. METHODS: Surgically asplenic patients actively receiving care in our health care system were identified via a database search. Patients were contacted via mailed letters and encouraged to attend an existing travel clinic with a new process designed for asplenic patients...
February 14, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28128749/comparative-erythrocyte-deformability-investigations-by-filtrometry-slit-flow-and%C3%A2-rotational-ektacytometry-in-a-long-term-follow-up-animal-study-on-splenectomy-and%C3%A2-different-spleen-preserving-operative-techniques-partial-or-subtotal-spleen-resection-and-spleen
#12
Iren Miko, Norbert Nemeth, Viktoria Sogor, Ferenc Kiss, Eniko Toth, Katalin Peto, Andrea Furka, Erzsebet Vanyolos, Laszlo Toth, Jozsef Varga, Krisztian Szigeti, Ilona Benkő, Anna V Olah, Istvan Furka
BACKGROUND: Partial or subtotal spleen resection or spleen autotransplantation can partly preserve/restore the splenic filtration function, as previous studies demonstrated. OBJECTIVE: For better evaluation and follow-up of the various spleen-preserving operative techniques' effectiveness versus splenectomy, a composite methodological approach was applied in a canine experimental model. METHODS: Beagle dogs were subjected to control (n = 6), splenectomy (SE, n = 4), partial and subtotal spleen resection (n = 4/each) or spleen autotransplantation groups (AU, Furka's spleen-chip method, n = 8)...
2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27994385/exchange-transfusion-for-babesiosis-when-how-and-how-long
#13
Pramod K Guru, John C O Horo, Heidi D Lehrke, Jeffrey L Winters, John W Wilson
Babesiosis is a zoonotic disease transmitted by Ixodes ticks seen in the United States and parts of Europe. Because of the typically mild course of most infections, the disease is uncommonly seen in clinical practice. However, asplenic patients can develop a life-threatening infection. The first line of therapy for Babesia infections is antiparasitic medications; however, red blood cell (RBC) exchange transfusion has been described as an adjunct therapy. We describe a severe case of babesiosis in an asplenic patient and review the evidence, indications, and protocols for RBC exchange transfusion in this setting...
November 2016: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/27929751/recommended-vaccinations-for-asplenic-and-hyposplenic-adult-patients
#14
Paolo Bonanni, Maddalena Grazzini, Giuditta Niccolai, Diana Paolini, Ornella Varone, Alessandro Bartoloni, Filippo Bartalesi, Maria Grazia Santini, Simonetta Baretti, Carlo Bonito, Paola Zini, Maria Teresa Mechi, Fabrizio Niccolini, Lea Magistri, Maria Beatrice Pulci, Sara Boccalini, Angela Bechini
Asplenic or hyposplenic (AH) individuals are particularly vulnerable to invasive infections caused by encapsulated bacteria. Such infections have often a sudden onset and a fulminant course. Infectious diseases (IDs) incidence in AH subjects can be reduced by preventive measures such as vaccination. The aim of our work is to provide updated recommendations on prevention of infectious diseases in AH adult patients, and to supply a useful and practical tool to healthcare workers for the management of these subjects, in hospital setting and in outpatients consultation...
February 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27859047/human-b-cell-memory-is-shaped-by-age-and-tissue-specific-t-independent-and-gc-dependent-events
#15
Alaitz Aranburu, Eva Piano Mortari, Anwar Baban, Ezio Giorda, Simona Cascioli, Valentina Marcellini, Marco Scarsella, Sara Ceccarelli, Sandro Corbelli, Nicoletta Cantarutti, Rita De Vito, Alessandro Inserra, Luciana Nicolosi, Arnalda Lanfranchi, Fulvio Porta, Caterina Cancrini, Andrea Finocchi, Rita Carsetti
Switched and IgM memory B cells execute different and noninterchangeable functions. We studied memory B cells in children of different ages, in peripheral blood and spleen and compared them with those of children born asplenic or unable to build germinal centers. We show that, whereas switched memory B cells are mostly generated in the germinal centers at all ages, IgM memory B cells can be distinct in three types with different developmental history. Innate IgM memory B cells, the largest pool in infants, are generated in the spleen by a germinal center-independent mechanism...
November 16, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27819637/patients-after-splenectomy-old-risks-and-new-perspectives
#16
REVIEW
Mihnea Dragomir, Dragoş George Emil Petrescu, Graţiela Elena Manga, George A Călin, Cătălin Vasilescu
The risks that arise after splenectomy can be divided in infectious and non-infectious. The link between splenectomy and these hazards remains partially unknown. Host defense against infection is altered after splenectomy and such individuals develop sepsis more easily and the infection has a fulminant course. Splenectomy is also a potential risk factor for several vascular complications that result from partial or total obstruction of an arterial or venous blood vessel. Furthermore, pulmonary hypertensioncan be a severe and sometimes fatal complication following splenectomy...
2016: Chirurgia
https://www.readbyqxmd.com/read/27776576/overwhelming-post-splenectomy-sepsis-in-patients-with-asplenia-and-hyposplenia-a-retrospective-cohort-study
#17
J Chong, P Jones, D Spelman, K Leder, A C Cheng
Overwhelming post-splenectomy infection (OPSI) is a serious complication of asplenia and is associated with encapsulated organisms, most commonly Streptococcus pneumoniae, but also Haemophilus influenzae and Neisseria meningitidis. We aimed to estimate the risk of infection in this patient group. We reviewed data collected by the Victorian Spleen Registry in Australia. On registration, all patients are asked about significant infections requiring admission to hospital for intravenous antibiotics; those requiring admission to ICU were defined as OPSI...
January 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/27650028/-prevention-of-severe-infections-in-asplenic-patients
#18
Th J M Verheij
The lifetime risk of dying from sepsis is approximately 2-3% in persons with (functional) asplenia. Both patients and their physicians are not always fully aware of these risks and the implementation of preventive measures is insufficient. Physicians should inform both patients and colleagues on the consequences of lost splenic function. Primary care physicians should screen their lists for patients with (functional) asplenia and offer these patient adequate preventive measures when needed.
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27613607/intravascular-haemolysis-with-haemoglobinuria-in-a-splenectomized-patient-with-severe-plasmodium-knowlesi-malaria
#19
Bridget E Barber, Matthew J Grigg, Timothy William, Tsin W Yeo, Nicholas M Anstey
BACKGROUND: Haemoglobinuria is an uncommon complication of severe malaria, reflecting acute intravascular haemolysis and potentially leading to acute kidney injury. It can occur early in the course of infection as a consequence of a high parasite burden, or may occur following commencement of anti-malarial treatment. Treatment with quinine has been described as a risk factor; however the syndrome may also occur following treatment with intravenous artesunate. In Malaysia, Plasmodium knowlesi is the most common cause of severe malaria, often associated with high parasitaemia...
September 9, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27590561/asplenic-patients-and-invasive-pneumococcal-disease-how-bad-is-it-these-days
#20
Thomas J Marrie, Gregory J Tyrrell, Sumit R Majumdar, Dean T Eurich
OBJECTIVES: Most are aware of pneumococcal infection as a complication of splenectomy and the increased risk of severe invasive pneumococcal disease (IPD) in asplenic patients. However little is known of the current status of this entity in a population with an active pneumococcal conjugate vaccine program for children. METHODS: All IPD cases reported from 2000 to 2014 in Northern Alberta, Canada were collected prospectively. Socio-demographic variables, clinical characteristics, and IPD-related outcomes were compared between patients with and without a spleen using the Student t-test, Chi-square test, or Fisher's exact test, as appropriate...
October 2016: International Journal of Infectious Diseases: IJID
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