Respiratory repercussions of sickle cell anemia

Universidade Federal de São Paulo (UNIFESP) Departamento de PsicobiologiaUNIFESP, Depto. de PsicobiologiaSciEL

Obstructive sleep apnea in children

Childhood obstructive sleep apnea syndrome (OSAS) is characterized by recurrent episodes of partial or complete upper airway obstruction during sleep. The disease encompasses a continuum from primary snoring (a benign condition without physiological alterations or associated complications) to increased upper airway resistance, obstructive hypoventilation and OSAS. The prevalence of snoring is high, ranging from 1.5% to 15%, depending on how it is defined. Based on parent-reported questionnaires and complementary tests, the prevalence of OSAS is 1-4%. This syndrome is more common in boys, overweight children, of African ancestry, with a history of atopy and prematurity. The most common symptoms are snoring that is frequent and loud; family-reported apnea; and restless sleep. The physical examination should assess growth status, signs of chronic upper airway obstruction, and craniofacial malformations. Overnight polysomnography is the gold standard test for the diagnosis and for the determination of the appropriate positive pressure level, as well as for postsurgical treatment evaluation. Intermittent hypoxia and multiple arousals resulting from obstructive events contribute to the well-described cardiovascular, neurocognitive, and behavioral consequences in pediatric patients with OSAS. Although the main treatment for OSAS in children is adenotonsillectomy, treatment with CPAP or Bilevel is becoming more widely used in the pediatric population.Em crianças, SAOS é caracterizada por episódios recorrentes de obstrução parcial ou completa das vias aéreas superiores durante o sono. Caracteriza-se por um continuum que vai desde o ronco primário (uma situação benigna de ronco sem alterações fisiológicas e complicações associadas), passando por resistência aumentada das vias aéreas, hipoventilação obstrutiva e, finalmente, SAOS. A prevalência de ronco é elevada e, dependendo da forma como ele é definido, varia entre 1,5% e 15%. O diagnóstico da SAOS, combinando questionários de relatos dos pais e exames complementares, apresenta uma prevalência de 1-4%. A SAOS é mais frequente nos meninos, nas crianças com sobrepeso, de ascendência africana, com história de atopia e prematuridade. Ronco alto e frequente, apneias observadas pelos familiares e sono agitado são os sintomas mais frequentes. O exame físico deve identificar a situação ponderostatural do paciente, avaliar evidências de obstrução crônica das vias aéreas superiores e ainda verificar a presença de alterações craniofaciais. A polissonografia de noite inteira é o exame padrão tanto para o diagnóstico, como para a definição da pressão necessária em equipamentos de pressão positiva e também para a avaliação do tratamento cirúrgico. A hipóxia intermitente e os múltiplos despertares resultantes dos eventos obstrutivos contribuem para as consequências cardiovasculares, neurocognitivas e comportamentais bem descritos nesses pacientes. A adenoamigdalectomia é o principal tratamento para a SAOS em crianças. O uso da pressão positiva nas vias aéreas (CPAP ou Bilevel) é outra opção de uso crescente na população pediátrica.Universidade Federal do Rio Grande do Sul Faculdade de Medicina Hospital de Clinicas de Porto AlegreUniversidade Federal de São Paulo (UNIFESP) Instituto do Sono Departamento de PsicobiologiaUNIFESP, Instituto do Sono Depto. de PsicobiologiaSciEL

POEMS syndrome manifested as systemic capillary leak syndrome a case report

The authors report a case of an old woman who presented with a history of repetitive dyspnea and inferior limbs edema episodes, up to the point she showed extreme anasarca, hypotension, hypoalbuminemia, hemoconcentration and cachexia, developing unexplained respiratory insufficiency until death, in spite of all interventions. A diagnosis was obtained by autopsia: multicentric Castleman’s disease manifested as capillary leak syndrome and possible POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, M protein and skin changes), all conditions of rare incidence and of an intriguing association

Air stacking and chest compression increase peak cough flow in patients with Duchenne muscular dystrophy

OBJECTIVE: To evaluate cough efficiency using two manually-assisted cough techniques. METHODS: We selected 28 patients with Duchenne muscular dystrophy. The patients were receiving noninvasive nocturnal ventilatory support and presented FVC values < 60% of predicted. Peak cough flow (PCF) was measured, with the patient seated, at four time points: at baseline, during a spontaneous maximal expiratory effort (MEE); during an MEE while receiving chest compression; during an MEE after air stacking with a manual resuscitation bag; and during an MEE with air stacking and compression (combined technique). The last three measurements were conducted in random order. The results were compared using Pearson's correlation test and ANOVA with repeated measures, followed by Tukey's post-hoc test (p < 0.05). RESULTS: The mean age of the patients was 20 ± 4 years, and the mean FVC was 29 ± 12%. Mean PCF at baseline, with chest compression, after air stacking and with the use of the combined technique was 171 ± 67, 231 ± 81, 225 ± 80, and 292 ± 86 L/min, respectively. The results obtained with the use of the combined technique were significantly better than were those obtained with the use of either technique alone (F[3.69] = 67.07; p < 0.001). CONCLUSIONS: Both chest compression and air stacking techniques were efficient in increasing PCF. However, the combination of these two techniques had a significant additional effect (p < 0.0001).OBJETIVO: Avaliar a eficiência da tosse através do uso de duas manobras manuais de auxílio à tosse. MÉTODOS: Foram selecionados 28 pacientes portadores de distrofia muscular de Duchenne em uso de ventilação mecânica não-invasiva noturna e CVF < 60% do previsto. O pico de fluxo da tosse (PFT) foi medido, com o paciente sentado, em quatro momentos: com esforço expiratório máximo (EEM) de forma espontânea (basal), EEM associado à compressão torácica, EEM após empilhamento de ar com bolsa de ventilação e EEM com o uso dessas duas técnicas (técnica combinada). As três últimas medições foram realizadas em ordem aleatória. Os resultados foram comparados usando o teste de correlação de Pearson e ANOVA para medidas repetidas, seguido do teste post hoc de Tukey (p < 0,05). RESULTADOS: A idade média dos pacientes foi de 20 ± 4 anos, e a CVF média foi de 29 ± 12%. A média de PFT basal, com compressão torácica, com empilhamento de ar e com o uso da técnica combinada foi 171 ± 67, 231 ± 81, 225 ± 80, e 292 ±86 L/min, respectivamente. Os resultados com o uso da técnica combinada foram maiores que aqueles com o uso das duas técnicas separadamente [F(3,69) = 67,07; p < 0,001]. CONCLUSÕES: As técnicas de compressão torácica e de empilhamento de ar foram eficientes para aumentar o PFT. No entanto, a combinação dessas manobras teve um efeito aditivo significativo (p < 0,0001).Universidade Federal de São Paulo (UNIFESP) Departamento de PsicobiologiaUNIFESP, Depto. de PsicobiologiaSciEL

Sleep quality as a confounding factor of maternal weight and preschool wheezing

Universidade Federal de São Paulo, Dept Psychobiol, São Paulo, BrazilUniversidade Federal de São Paulo, Dept Psychobiol, São Paulo, BrazilWeb of Scienc

A resource management scenario for traditional and scientific management of pink shrimp (Farfantepenaeus paulensis) in the Patos Lagoon estuary (RS), Brazil

Abstract\ud \ud \ud \ud Background\ud \ud This article aims to discuss the incorporation of traditional time in the construction of a management scenario for pink shrimp in the Patos Lagoon estuary (RS), Brazil. To meet this objective, two procedures have been adopted; one at a conceptual level and another at a methodological level. At the conceptual level, the concept of traditional time as a form of traditional ecological knowledge (TEK) was adopted.\ud \ud \ud \ud Method\ud \ud At the methodological level, we conduct a wide literature review of the scientific knowledge (SK) that guides recommendations for pink shrimp management by restricting the fishing season in the Patos Lagoon estuary; in addition, we review the ethno-scientific literature which describes traditional calendars as a management base for artisanal fishers in the Patos Lagoon estuary.\ud \ud \ud \ud Results\ud \ud Results demonstrate that TEK and SK describe similar estuarine biological processes, but are incommensurable at a resource management level. On the other hand, the construction of a “management scenario” for pink shrimp is possible through the development of “criteria for hierarchies of validity” which arise from a productive dialog between SK and TEK.\ud \ud \ud \ud Conclusions\ud \ud The commensurable and the incommensurable levels reveal different basis of time-space perceptions between traditional ecological knowledge and scientific knowledge. Despite incommensurability at the management level, it is possible to establish guidelines for the construction of “management scenarios” and to support a co-management process.The authors thank The International Opportunities Fund Program from the Social Sciences and Humanities Research, Canada, (IOF/SSHRC) through the Project “Building an International Research Network for Collaborative Coastal Management: Sharing Experiences from Brazil and Canada”, the Fundação de Amparo a Pesquisa do Estado de São Paulo (FAPESP/Brazil) and the Improvement of Hight Education Personnel CAPES/PROAP for funding support. Daniela C. Kalikoski thanks The Brazilian Chair for the Improvement of High Education Personnel (CAPES)/Marine Science, through “Integrated and Participatory Management of Coastal Marine Areas” for funding support (Project N. 23038.051620/2009-21 Edital 09/2009 - Ciências do Mar)

Sleep disorders frequency in post-polio syndrome patients caused by periodic limb movements

Post-polio syndrome (PPS) in individuals with polio longer than 15 years is characterized by weakness and/or muscle fatigue, deficit of deglutition and breath and periodic limb movements (PLM) during sleep. We undertook a review of 99 patients with PPS, and assessed the frequency of PLM through polysomnographic recordings at our sleep disorders unit. the total number of PLK total time of sleep (TTS), efficiency of sleep (EfS), awaking index (AI) and apnea-hypopnea index (AHI) were analyzed. Sixteen patients presented PLM in excess of 5 for the entire night. When comparing these with the group without PLM, a correlation was found (p=0.001). Significant difference was found for the correlation of the parameters: IAH, ID, TTS and EfS when compared the two groups. There is a close relationship between PPS and PLM.Universidade Federal de São Paulo, EPM, Inst Sono, São Paulo, BrazilUniversidade Federal de São Paulo, EPM, Inst Sono, São Paulo, BrazilWeb of Scienc

Performance autoethnography and qualitative research in Collective Health: methodological (mis)encounters

Performance autoethnography is qualitative research methodology that aims to problematize resistances between the “self” (auto-) and the collective (ethno-) in the act of writing (-graphy). The article thus aims to discuss the theoretical and practical construction of performance autoethnography and its applicability as a qualitative research and analytical method in the field of Collective Health through a performance autoethnography writing. By problematizing the epistemic and ontological basis of performance autoethnography, pointing to possibilities for its development and inclusion in studies in the field of Collective Health, the article presents performance autoethnography as a strategy to expand the possibilities for social justice, democratization, and pluralisms in and from research practices. Performance autoethnography, oriented by the episteme “postcolonial”, explores decolonializing approaches that provoke and create conditions for the transformation of the academic view itself and the knowledge that prioritizes certain representations of “the other” and thus mainly problematizes how subaltern and marginalized histories relate to what are considered hegemonic systems

Treatment of sleep central apnea with non-invasive mechanical ventilation with 2 levels of positive pressure (bilevel) in a patient with myotonic dystrophy type 1

AbstractWe are reporting a case of a 29 year-old female with diagnosis of myotonic dystrophy type 1 (Steinert’s disease) with excessive daytime sleepiness, muscle fatigue, snoring, frequent arousals, non-restorative sleep, and witnessed apneas. Pulmonary function tests revealed a mild decrease of forced vital capacity. Nocturnal polysomnography showed an increase of apnea/hypopnea index (85.9 events/h), mainly of central type (236), minimal oxygen saturation of 72%, and end-tidal carbon dioxide values that varied from 45 to 53 mmHg.Bi-level positive airway pressure titration was initiated at an inspiratory pressure (IPAP) of 8 and an expiratory pressure (EPAP) of 4 cm H2O. IPAP was then gradually increased to eliminate respiratory events and improve oxygen saturation. An IPAP of 12cm H20 and an EPAP of 4cm H2O eliminated all respiratory events, and the oxygen saturation remained above 90%.Bi-level positive airway pressure treatment at spontaneous/timed mode showed an improvement in snoring, apneas, and Epworth sleepiness scale decreased from 20 to 10. This case illustrates the beneficial effects of Bi-level positive airway pressure support in central sleep apnea syndrome of a patient with myotonic dystrophy type 1