Publications by authors named "Fourrier J"

Background: Since the latest 2017 French guidelines, knowledge about idiopathic pulmonary fibrosis has evolved considerably.

Methods: Practical guidelines were drafted on the initiative of the Coordinating Reference Center for Rare Pulmonary Diseases, led by the French Language Pulmonology Society (SPLF), by a coordinating group, a writing group, and a review group, with the involvement of the entire OrphaLung network, pulmonologists practicing in various settings, radiologists, pathologists, a general practitioner, a health manager, and a patient association. The method followed the "Clinical Practice Guidelines" process of the French National Authority for Health (HAS), including an online vote using a Likert scale.

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Background: Since the previous French guidelines were published in 2017, substantial additional knowledge about idiopathic pulmonary fibrosis has accumulated.

Methods: Under the auspices of the French-speaking Learned Society of Pulmonology and at the initiative of the coordinating reference center, practical guidelines for treatment of rare pulmonary diseases have been established. They were elaborated by groups of writers, reviewers and coordinators with the help of the OrphaLung network, as well as pulmonologists with varying practice modalities, radiologists, pathologists, a general practitioner, a head nurse, and a patients' association.

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Background: Since the previous French guidelines were published in 2017, substantial additional knowledge about idiopathic pulmonary fibrosis has accumulated.

Methods: Under the auspices of the French-speaking Learned Society of Pulmonology and at the initiative of the coordinating reference center, practical guidelines for treatment of rare pulmonary diseases have been established. They were elaborated by groups of writers, reviewers and coordinators with the help of the OrphaLung network, as well as pulmonologists with varying practice modalities, radiologists, pathologists, a general practitioner, a head nurse, and a patients' association.

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Pulmonary fibrosis includes a spectrum of diseases and is incurable. There is a variation in disease course, but it is often progressive leading to increased breathlessness, impaired quality of life, and decreased life expectancy. Detection of pulmonary fibrosis is challenging, which contributes to considerable delays in diagnosis and treatment.

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The assessment of pesticide risks to insect pollinators have typically focused on short-term, lethal impacts. The environmental ramifications of many of the world's most commonly employed pesticides, such as those exhibiting systemic properties that can result in long-lasting exposure to insects, may thus be severely underestimated. Here, seven laboratories from Europe and North America performed a standardised experiment (a ring-test) to study the long-term lethal and sublethal impacts of the relatively recently approved 'bee safe' butenolide pesticide flupyradifurone (FPF, active ingredient in Sivanto) on honey bees.

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The growing gap between new evidence of pesticide toxicity in honeybees and conventional toxicological assays recommended by regulatory test guidelines emphasizes the need to complement current lethal endpoints with sublethal endpoints. In this context, behavioral and reproductive performances have received growing interest since the 2000s, likely due to their ecological relevance and/or the emergence of new technologies. We review the biological interests and methodological measurements of these predominantly studied endpoints and discuss their possible use in the pesticide risk assessment procedure based on their standardization level, simplicity and ecological relevance.

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The paradigm for all toxicological bioassays in the risk assessment of pesticide registration reflects the principle that experimental conditions should be controlled to avoid any other factors that may affect the endpoint measures. As honeybee colonies can be frequently exposed to bio-aggressors in real conditions, often concomitantly with pesticides, co-exposure to pesticide/bio-aggressors is becoming a concern for regulatory authorities. We investigated the effects of the neonicotinoid insecticide thiamethoxam on the homing performances of foragers emerging from colonies differentiated by health status (infestation with Varroa destructor mites, microsporidian parasite Nosema spp.

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Background: Juvenile hormone (JH) plays an important role in honeybee development and the regulation of age-related division of labor. However, honeybees can be exposed to insect growth regulators (IGRs), such as JH analogs developed for insect pest and vector control. Although their side effects as endocrine disruptors on honeybee larval or adult stages have been studied, little is known about the subsequent effects on adults of a sublethal larval exposure.

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Already parasitized hosts are often of poorer quality than healthy hosts. It is therefore usually advantageous for parasitoid females to recognize and reject them. Parasitized hosts can be identified on the basis of various physical or chemical marks present on the surface or inside the hosts or their surroundings in the case of concealed host.

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Losses of foraging bees are sometimes attributed to altered flight pattern between a meliferous plant treated with an insecticide and the hive. Only a limited number of studies has investigated the impact of pesticides on homing flight due to the difficulty of measuring the flight time between the food source and the hive. Monitoring the flights of the foraging bees needs their individual identification.

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Renal artery angioplasty using the same techniques employed for coronary arteries has developed considerably. A register was set up in France to evaluate the efficacy of this treatment for improving renal function and lowering blood pressure in cardiac patients. Between 2001 and 2005, 205 patients (234 lesions) were treated in 14 centres (mean age: 69.

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A fiber-optic tip catheter has been developed for treating coronary and peripheral atherosclerosis percutaneously. The catheter is coupled to an ionised Argon laser emitting at an optical power of 1 to 7 Watts. It is designed to follow a guide wire and to perform tissue ablation by a new concept combining the effects of central vaporisation and peripheral thermal remodelling of the obstructed artery.

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Unlabelled: To improve the result of peripheral laser recanalization (less perforation with wider tunnels of vaporization), we used the technique of sapphire laser angioplasty. A Nd:YAG laser with continuous emission was connected to a catheter with a 600 mum fiber and a sapphire probe to its extremity (1.8-3 mm in diameter).

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The rotablator is a high-speed rotating ablative system developed to grind obstructing atheromatous material into fine particles. It consists of a rotating burr attached to a long, flexible driving shaft with a central flexible guidewire. The device rotates with a speed of 190,000 r.

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This study analyses the long-term prognosis of 210 patients with coronary spasm documented at coronary angiography. All patients with a previous history of myocardial infarction or who had undergone coronary angioplasty were excluded. The average follow-up was 55 months and only 11 patients were lost to follow-up.

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The significance of U-wave inversion during coronary arterial spasm was investigated in 188 consecutive ergometric tests performed in 69 patients. All patients had previously undergone coronary arteriography which had clearly shown coronary spasm either at rest or after a single 0.4 mg injection of ergometrine.

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Percutaneous coronary rotational angioplasty was attempted in 12 patients. The procedure was performed with a flexible rotating shaft with an abrasive tip, varying in diameter from 1.25 to 3.

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Although coronary artery spasm and abnormal vasoconstriction have undergone considerable investigation, it remains difficult to assess coronary vasomotor tone. To address this problem, the combination of two pharmacological tests (IV injection of 0.4 mg ergometrine followed 5 min later by IV injection of 3 mg isosorbide dinitrate) was performed after the routine procedure of coronary arteriography.

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[Coronary atherectomy using a Rotablator].

Ann Cardiol Angeiol (Paris)

September 1989

A system or rotary atherectomy (Rotablator) was evaluated on coronary stenoses in Man. This device consists of catheter presenting an abrasive olive-shaped knob at one end, and sliding over a central metallic guide, rotating at more than 150,000 tpm. This drill liquifies the atheroma in small microparticles able to cross the microcirculation.

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Exercise tests systematically performed during coronary arteriography in patients who had undergone coronary angioplasty show a very large number of ST depressions in the absence of significant coronary lesion. This could be ascribed either to electrocardiographic traces of chronic ischaemia or to a reduced predictive value of exercise tests due to a combination of low prevalence of coronary disease and poor specificity and/or sensitivity. In order to confirm or infirm these hypotheses, the values observed in a study group of 122 patients who had undergone angioplasty for single lesion of the anterior interventricular artery were compared with the values calculated by Bayes' theorem from a 30 p.

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Right coronary artery occlusion by a thrombus occurred during the coronary angiography performed in a patient with anterior myocardial infarction. Emergency coronary aspiration was undertaken via a 9F guiding catheter, which allowed the thrombus to be removed. The patient, who was in cardiogenic shock, immediately improved and was subsequently discharged without any complications or sequelae.

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There is a number of factors in favor of a different effect between the two main calcium-blockers causing bradycardia. The effects of 3 doses of verapamil 120 mg and 3 doses of diltiazem 60 mg, were compared in a double-blind study with cross-over, in 12 patients with coronary insufficiency diagnosed by coronary angiography. Four stress tests were performed in each patient, two with placebo before each treatment period and two after treatment, according to the Bruce protocol, using a computerized ECG reading system.

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Among 868 patients with successful percutaneous transluminal coronary angioplasty (PTCA), 437 were restudied angiographically and had a provocative test with ergonovine during coronary angiography performed before and 6 months after the procedure. The relation between provoked coronary artery spasm and restenosis was studied and 4 groups of patients were analyzed. Those in group 1 (n = 63) had spasm before and after PTCA and their rate of restenosis was high (55%), especially when spasm after PTCA was observed on the dilated coronary segment (restenosis rate 58%).

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Left ventricular function during percutaneous transluminal coronary angioplasty was studied in 16 patients undergoing the procedure. All measurements were performed before and during the first episode of balloon coronary occlusion. In 16 patients (Group A), data were recorded before and 30 or 50 s after balloon inflation, and in 8 of these patients (Group B) data were also recorded 15 min after the complete procedure.

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