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Search Results: 1 - 10 of 7049 matches for " Paolo Zanatta "
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Haemodynamics and oxygenation improvement induced by high frequency percussive ventilation in a patient with hypoxia following cardiac surgery: a case report
Alessandro Forti, Valeria Salandin, Paolo Zanatta, Bruno Persi, Carlo Sorbara
Journal of Medical Case Reports , 2010, DOI: 10.1186/1752-1947-4-339
Abstract: A 75-year-old Caucasian man with an ejection fraction of 27 percent, developed a lung infection with severe hypoxaemia [partial pressure of oxygen/fractional inspiratory oxygen of 90] ten days after cardiac surgery. Conventional ventilation did not improve the gas exchange. He was treated with high frequency percussive ventilation for 12 hours with a low conventional respiratory rate (five per minute). His cardiac output and systemic and pulmonary pressures were monitored.Compared to conventional ventilation, high frequency percussive ventilation gives an improvement of the partial pressure of oxygen from 90 to 190 mmHg with the same fractional inspiratory oxygen and positive end expiratory pressure level. His right ventricular stroke work index was lowered from 19 to seven g-m/m2/beat; his pulmonary vascular resistance index from 267 to 190 dynes?seconds/cm5/m2; left ventricular stroke work index from 28 to 16 gm-m/m2/beat; and his pulmonary arterial wedge pressure was lowered from 32 to 24 mmHg with a lower mean airway pressure compared to conventional ventilation. His cardiac index (2.7 L/min/m2) and ejection fraction (27 percent) did not change.Although the high frequency percussive ventilation was started ten days after the conventional ventilation, it still improved the gas exchange. The reduction of right ventricular stroke work index, left ventricular stroke work index, pulmonary vascular resistance index and pulmonary arterial wedge pressure is directly related to the lower respiratory mean airway pressure and the consequent afterload reduction.Lung injury is a well-recognized complication after operations for cardiac surgery [1]. Cardiopulmonary bypass leads to the activation of complement, neutrophils, monocytes, macrophages, platelets and endothelial cells with secretion of cytokines, proteases, arachidonic acid metabolites and oxygen-free radicals. Leukocyte adhesion to microvascular endothelium, leukocyte extravasation and tissue damage can be seen in
The Impact of Speed Limits on Recreational Boating in the Lagoon of Venice
Paolo Rosato,Anna Alberini,Dimitrios Reppas,Valentina Zanatta
Aestimum , 2007,
Abstract:
Dynamic monitors of brain function: a new target in neurointensive care unit
Enrico Bosco, Elisabetta Marton, Alberto Feletti, Bruno Scarpa, Pierluigi Longatti, Paolo Zanatta, Emanuele Giorgi, Carlo Sorbara
Critical Care , 2011, DOI: 10.1186/cc10315
Abstract: We followed up 68 selected comatose patients between 2007 and 2009 who had been admitted to the Neurosurgical Intensive Care Unit of Treviso Hospital after being diagnosed with subarachnoid haemorrhage (51 cases) or intracerebral haemorrhage (17 cases). Quantitative brain function monitoring was carried out using a remote EEG-SEP recording system connected to a small amplification head box with 28 channels and a multimodal stimulator (NEMO; EBNeuro, Italy NeMus 2; EBNeuro S.p.A., Via P. Fanfani 97/A - 50127 Firenze, Italy). For statistical analysis, we fit a binary logistic regression model to estimate the effect of brain function monitoring on the probability of GOS scores equal to 1. We also designed a proportional odds model for GOS scores, depending on amplitude and changes in both SEPs and EEG as well as on the joint effect of other related variables. Both families of models, logistic regression analysis and proportional odds ratios, were fit by using a maximum likelihood test and the partial effect of each variable was assessed by using a likelihood ratio test.Using the logistic regression model, we observed that progressive deterioration on the basis of EEG was associated with an increased risk of dying by almost 24% compared to patients whose condition did not worsen according to EEG. SEP decreases were also significant; for patients with worsening SEPs, the odds of dying increased to approximately 32%. In the proportional odds model, only modifications of Modified Glasgow Coma Scale scores and SEPs during hospitalisation statistically significantly predicted GOS scores. Patients whose SEPs worsened during the last time interval had an approximately 17 times greater probability of a poor GOS score compared to the other patients.The combined use of SEPs and continuous EEG monitoring is a unique example of dynamic brain monitoring. The temporal variation of these two parameters evaluated by continuous monitoring can establish whether the treatments used for pa
Ill-lighting syndrome: prevalence in shift-work personnel in the anaesthesiology and intensive care department of three Italian hospitals
Ilaria Morghen, Maria Turola, Elena Forini, Piero Di Pasquale, Paolo Zanatta, Teresa Matarazzo
Journal of Occupational Medicine and Toxicology , 2009, DOI: 10.1186/1745-6673-4-6
Abstract: We used a questionnaire developed by the Scandinavian teams who investigated Sick-Building Syndrome, that was self-administered on one day in the environments where the degree of illumination was measured according to UNIEN12464-1 regulations.Upon comparison of the types of exposure with the horizontal luminance values (lux) measured (< 700 lux, between 1000–1500 lux, > 1500 lux) and the degree of stress reported, (Intensive Care: mean stress = 55.8%, high stress = 34.6%; Operating Theatres: mean stress = 51.5%, high stress = 33.8%), it can be observed that the percentage of high stress was reduced as the exposure to luminance was increased, although this finding was not statistically significant.We cannot share other authors' enthusiasm regarding the effects on workers well-being correlated to the use of fluorescent lighting. The stress level of our workers was found to be more heavily influenced by their familial and working conditions, irrespective of the ambient light stimulus.Light is one of the most important factors in our interaction with the environment; it is indispensable to visual function and neuroendocrine regulation, and it is essential to our emotional perception and evaluation of the environment. Previous studies have demonstrated its effects on the psyche and also its therapeutic role: Berson, in 2002, documented the existence of a retinal photoreceptor linked to the supra-chiasmatic nucleus. This receptor has been ascribed a role in the transmission of neuronal transmission arising from light stimuli to the pineal gland, seat of the biological clock which presides over the regulation of the circadian system via the retinal hypothalamic pathway [1].Control of the biological clock and the release of several important hormones (among which: cortisol, the stress hormone, and melatonin, the sleep hormone) are governed by the alternation of light and dark. Thus, exposure to light has important repercussions on human health and behaviour. A role in the r
Pain-related somatosensory evoked potentials and functional brain magnetic resonance in the evaluation of neurologic recovery after cardiac arrest: a case study of three patients
Paolo Zanatta, Simone Messerotti Benvenuti, Fabrizio Baldanzi, Matteo Bendini, Marsilio Saccavini, Wadih Tamari, Daniela Palomba, Enrico Bosco
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine , 2012, DOI: 10.1186/1757-7241-20-22
Abstract: Early and accurate prognostic assessment of neurological functional outcomes in comatose patients after cardiac arrest is a relevant medical, ethical, and economic issue. It has been shown that beyond the Glasgow Coma Scale (GCS), a patient's pupil light reactivity, corneal reflexes, myoclonus status epilepticus, and serum neuron-specific enolase, short latency somatosensory-evoked potentials (SEPs) (N20/P25) improve the accuracy of neurological prognosis in comatose patients after cardiac arrest [1]. SEPs have shown high sensitivity and specificity in predicting poor outcomes. Indeed, that the bilateral disappearance of cortical N20/P25 is well-established to be associated with adverse outcomes such as death or survival in a vegetative state. Nonetheless, the presence of N20/P25 may not be sensitive enough to predict a good neurological outcome [2]. In fact, only the event-related evoked potentials (i.e., mismatched negativity and novelty P300), middle latency cortical somatosensory-evoked potentials (MLCEPs), and reactivity electroencephalogram (EEG) background have been associated with a favourable neurological prognosis [3-7].In recent years, brain functional neuroimaging has been used in order to clarify the diagnosis of the vegetative state, suggesting that brain activation imaging may reflect awareness and/or cognition and provide reliable prognostic information [8,9]. However, given that this methodology is based on imagery and communication task paradigms, this approach is only feasible in the chronic phase of consciousness disorders. Moreover, studies using positron emission tomography have shown that minimally conscious state patients, compared to vegetative state patients, may show brain processing activation elicited by noxious electrical stimulation of the median nerves similar to that seen in healthy controls, suggesting a possible cortical processing of pain [10-12]. However, the intensity of electrical stimuli applied in vegetative patients (i.e., 1
Microembolic signals and strategy to prevent gas embolism during extracorporeal membrane oxygenation
Paolo Zanatta, Alessandro Forti, Enrico Bosco, Loris Salvador, Maurizio Borsato, Fabrizio Baldanzi, Carolina Longo, Carlo Sorbara, Pierluigi longatti, Carlo Valfrè
Journal of Cardiothoracic Surgery , 2010, DOI: 10.1186/1749-8090-5-5
Abstract: In this study we present our preliminary experience on brain blood flow velocity and emboli detection through the transcranial Doppler monitoring during ECMO.Six patients suffering of heart failure, four after cardiac surgery and two after cardiopulmonary resuscitation were treated with ECMO and submitted to transcranial doppler monitoring to accomplish the neurophysiological evaluation for coma.Four patients had a full extracorporeal flow supply while in the remaining two patients the support was maintained 50% in respect to normal demand.All patients had a bilateral transcranial brain blood flow monitoring for 15 minutes during the first clinical evaluation.Microembolic signals were detected only in patients with the full extracorporeal blood flow supply due to air embolism.We established that the microembolic load depends on gas embolism from the central venous lines and on the level of blood flow assistance.The gas microemboli that enter in the blood circulation and in the extracorporeal circuits are not removed by the membrane oxygenator filter.Maximum care is required in drugs and fluid infusion of this kind of patients as a possible source of microemboli. This harmful phenomenon may be overcome adding an air filter device to the intravenous catheters.ECMO is a well consolidated method of treatment for patients with heart failure after cardiac surgery besides intraortic balloon pump and pharmacological therapy [1]. Mortality and morbidity of this life saving procedure remain still high [2]. The more frequent complications are bleeding, renal failure, lower limb ischemia and brain iniury like cerebral haemorrhage and oedema.Our preliminary experience in monitoring ECMO patients sustains the possible role of systemic microembolism in increasing patient morbidity.We investigated six consecutive patients treated with ECMO; four patients were submitted to the extracorporeal treatment because of refractory postcardiotomy cardiogenic shock while the others two patien
The rise and fall of the third position: Bolivia, Perón and the Cold War, 1943-1954
Zanatta,Loris;
Desarrollo Económico (Buenos Aires) , 2006,
Abstract: the doctrine of the third position drawn by peron between 1946 and 1955 was an attempt to find an alternative to the opposition between the liberal west and the communist east. in practical terms, it resulted in the project to create a bloc of latin-american nations independent both from washington and from moscow. peron's project interpreted the region's peaking nationalist feelings and amounted to a challenge on the united states in the toughest phase of the cold war. however, the third position soon revealed the limitations -economic weakness, diplomatic dilettantism- that led to its demise and sub-ordination to the iron logic of the cold war. this article examines one of those limitations, scarcely explored by the literature: the hegemonic, even sub-imperialist aspect that the third position assumed in the eyes of argentina's neighboring countries. this trait would eventually induce those countries to seek the protection of a strong and distant empire, the united states, before submitting to the ambitions of a weaker, closer power, peron's argentina. this article reconstructs such political dynamics drawing on the competition between washington and peron for the control of bolivia between 1943 and 1955 as an example.
Intercultural Therapy and Ethnopsychoanalysis: are They Both 'Possession'?
Francesca Zanatta
Opticon1826 , 2008, DOI: 10.5334/opt.040810
Abstract: The assumption that such a delicate practice as therapy is universal is a fault belonging to the past. The universality of therapy has been questioned for a long time without any consistent or final answer. The biggest contribution of Anthropology to therapy has been to open up new approaches to and points of view about therapy. Therefore the problems linked to assumptions about therapy’s universality have been overcome partially through the analysis and the understanding of differences and peculiarities of cultures. Ethnopsychoanalysis and Intercultural Therapy are two approaches to therapy that have been developed in response to the Anthropological critique and its identification of cultural variance. They both give effect to Littlewood’s suggestion (1990), which was developed in his article that promoted the rise of a new cross-cultural psychiatry: According to Littlewood, ‘we need to take into account the whole context of a particular experience and its personal meaning even if it leads us to such areas as local politics or social structure’. Each of the new therapies referred to above give effect to Littlewood’s suggestion in different ways. On the one hand, Intercultural Therapy, starting from the Western traditional theories, has been modeled on other cultures; on the other hand, Ethnopsychiatry has been based on traditional therapy belonging to non-Western cultures, with some help from psychoanalytic theories. Both these therapies are an attempt to overcome the problems caused by the assumption of universality. A question still remains: is this effort just another way to make therapy fit into non-Western cultures? Is this effort simply another way to ‘possess’ cultures?
Peron e il miraggio del Blocco latino Di come la guerra fredda allargò l’Atlantico Sud
Zanatta, Loris
Anuario de Estudios Americanos , 2006,
Abstract: This article is based upon a multi-archival research in the diplomatic archives of seven different countries: Argentina, Brazil, Chile, Spain, Italy, Perù and Portugal. It analyzes the attempt of the Peròn government to form a bloc of Latin countries, gathering under its hegemony, and with the support of the Vatican, the catholic nations of Europe and America. Known as the “third position”, the idea of creating such a bloc failed once the Cold War imposed its rules, laying the ground for an odd alliance between most catholic countries, the Vatican and the United States. As a consequence, Peròn’s policy abandoned its religious matrix and drifted progressively toward third-worldist horizons. At the same time, the abortion of the Latin bloc showed the capability of the bipolar system to erode the notion of a Latin civilization, diluting it into the broadest one of the Christian West Basada en los archivos diplomáticos de Argentina, Brasil, Chile, Espa a, Italia, Perú y Portugal, esta investigación analiza el intento del gobierno de Perón de formar un bloque de países latinos capaz de reunir bajo su hegemonía y con la legitimación de la Santa Sede las naciones católicas de Europa y de América. Conocido como la “tercera posición”, ese bloque fracasó a medida que la guerra fría imponía sus reglas y creaba las condiciones de una inédita alianza entre la mayoría de los países católicos y el Vaticano con Estados Unidos. Como consecuencia la política peronista se alejó de su origen confesional para evolucionar hacia una ideología cada vez más tercermundista. Al mismo tiempo el aborto del bloque latino demostró que el sistema bipolar destruía la noción de civilización latina diluyéndola en la más amplia de Occidente cristiano
Adjuvant concentrations and uredospore densities on Phakopsora pachyrhizi infection efficiency in soybean
Zanatta, Tiago;Reis, Erlei Melo;Zanatta, Mateus;
Summa Phytopathologica , 2012, DOI: 10.1590/S0100-54052012000200007
Abstract: experiments were carried out in a growth chamber to evaluate the effect of spreader and uredospore concentrations on the efficiency of infection by phakopsora pachyrhizi, the causal agent of asian soybean rust. cd 214 rr soybean cultivar was inoculated with the following polyoxyethylene sorbitane monolaurate concentrations: 0, 30, 60, 120, 240, 480 and 960 μl.l-1 water, as well as a fixed uredospore concentration of 2 x 104 spores.ml-1. in a second phase, the inoculum concentrations of 0, 5 x 103, 1 x 104, 2 x 104, 4 x 104, 8 x 104 and 16 x 104 uredospores.ml-1 were evaluated, and the spreader concentration of 240 μl.l-1, selected in the previous experiment, was fixed. the spreader concentration of 240 μl.l-1 can be used in artificial inoculation studies, as well as up to 4 x 104 uredospores.ml-1. in this work, there was a correlation between uredia and lesion density. thus, the use of lesion density is recommended to assess disease intensity for its accuracy and less time consuming. there was also a positive correlation between uredia and lesion density.
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