[ST-elevation myocardial infarction caused by stent fracture: a case report].

Coronary stent fracture is an infrequent event, with an incidence ranging from 1% to 8%. In rare cases, this complication may result in acute occlusion of the affected coronary artery. We report the case of a patient who experienced acute coronary syndrome following a stent fracture implanted 3 years previously.

Extrinsic compression of left main coronary artery due to pulmonary artery aneurysm and pulmonary hypertension.

Idiopathic pulmonary arterial hypertension is a serious condition that carries a poor prognosis. While exertional dyspnea is the most common symptom, angina like chest pain, most often due to right ventricle ischemia, may occur at advanced stages. We present a patient with pulmonary hypertension symptomatic for dyspnea and angina in whom computed coronary tomography angiography showed compression of the left main coronary artery by a large pulmonary artery aneurysm.

First Measurement Using Elliptically Polarized Photons of the Double-Polarization Observable E for γp→pπ^{0} and γp→nπ^{+}.

We report the measurement of the helicity asymmetry E for the pπ^{0} and nπ^{+} final states using, for the first time, an elliptically polarized photon beam in combination with a longitudinally polarized target at the Crystal Ball experiment at MAMI. The results agree very well with data that were taken with a circularly polarized photon beam, showing that it is possible to simultaneously measure polarization observables that require linearly (e.g.

How a laboratory-based antimicrobial resistance (AMR) regional surveillance system can address large-scale and local AMR epidemiology: the MICRO-BIO experience.

Antimicrobial resistance is a significant threat to public health, with Italy experiencing substantial challenges in terms of AMR rate, surveillance system and activities to combat AMR. In response, the MICRO-BIO project was initiated as part of the National Plan to Combat Antibiotic Resistance by Region Lombardy health department. It was launched in 2018 with the aim of creating a surveillance tool by integrating data on bacterial isolates from microbiology laboratories.

[Complications of cardiac catheterisation in congenital heart disease. 30 years of experience. A new risk-adjusted score].

Objetive: To present a risk-ajusted score of complications during cardias catheterization in congenital heart disease.

Design: observational, analitic, ambispective of 3.504 cases.

First Concurrent Extraction of the Leading-Order Scalar and Spin Proton Polarizabilities.

We performed the first simultaneous extraction of the six leading-order proton polarizabilities. We reached this milestone thanks to both new high-quality experimental data and an innovative bootstrap-based fitting method. These new results provide a self-consistent and fundamental benchmark for all future theoretical and experimental polarizability estimates.

Measurement of Compton Scattering at MAMI for the Extraction of the Electric and Magnetic Polarizabilities of the Proton.

A precise measurement of the differential cross sections dσ/dΩ and the linearly polarized photon beam asymmetry Σ_{3} for Compton scattering on the proton below pion threshold has been performed with a tagged photon beam and almost 4π detector at the Mainz Microtron. The incident photons were produced by the recently upgraded Glasgow-Mainz photon tagging facility and impinged on a cryogenic liquid hydrogen target, with the scattered photons detected in the Crystal Ball/TAPS setup. Using the highest statistics Compton scattering data ever measured on the proton along with two effective field theories (both covariant baryon and heavy-baryon) and one fixed-t dispersion relation model, constraining the fits with the Baldin sum rule, we have obtained the proton electric and magnetic polarizabilities with unprecedented precision: α_{E1}=10.

Single production off neutrons bound in deuteron with linearly polarized photons.

The quasifree photon beam asymmetry, , has been measured at photon energies, , from 390 to 610 MeV, corresponding to center of mass energy from 1.271 to 1.424 GeV, for the first time.

Helicity-Dependent Cross Sections for the Photoproduction of π^{0} Pairs from Nucleons.

The double-polarization observable E and helicity-dependent cross sections σ_{1/2}, σ_{3/2} have been measured for the photoproduction of π^{0} pairs off quasifree protons and neutrons at the Mainz MAMI accelerator with the Crystal Ball/TAPS setup. A circularly polarized photon beam was produced by bremsstrahlung from longitudinally polarized electrons and impinged on a longitudinally polarized deuterated butanol target. The reaction products were detected with an almost 4π covering calorimeter.

Signatures of the d^{*}(2380) Hexaquark in d(γ,pn[over →]).

We report a measurement of the spin polarization of the recoiling neutron in deuterium photodisintegration, utilizing a new large acceptance polarimeter within the Crystal Ball at MAMI. The measured photon energy range of 300-700 MeV provides the first measurement of recoil neutron polarization at photon energies where the quark substructure of the deuteron plays a role, thereby providing important new constraints on photodisintegration mechanisms. A very high neutron polarization in a narrow structure centered around E_{γ}∼570  MeV is observed, which is inconsistent with current theoretical predictions employing nucleon resonance degrees of freedom.

Complete Nucleotide Sequence of Plasmids of Two Strains Carrying and and From the Same Patient.

Aim of this study was to genetically characterize two carbapenemase-producing strains obtained from a pediatric patient affected by diarrhea, expressing OXA-181 and/or NDM-5 type enzymes. The above microorganisms were collected in the same Desenzano hospital (Northern Italy) where the gene was detected for the first time in Italy 3 years ago. One strain (5P), belonged to sequence type ST405/ST477 (according to Pasture/Oxford schemes) and serotype O102:H6.

Mitral valve calcium assessment: An independent predictor of balloon valvuloplasty results.

Objective: Percutaneous mitral valvuloplasty (PMV) is an effective treatment for patients with mitral valve stenosis. Echocardiographic score (ES) is a useful predictor of outcomes. However, mitral valve calcification (MVC) has been shown to predict immediate results even in patients with otherwise low ES.

Safety and efficacy of intracoronary sodium nitroprusside for the assessment of coronary fractional flow reserve.

Background: Coronary fractional flow reserve (FFR) determination is a valuable tool for the assessment of stenosis significance in intermediate coronary obstructions. Maximal hyperemia is mandatory for this determination. Although intravenous (IV) Adenosine is the standard agent used, its use carries an elevated incidence of side effects.

Comparison of sodium nitroprusside and adenosine for fractional flow reserve assessment: a systematic review and meta-analysis.

Background: Fractional flow reserve (FFR) has become a useful tool in the assessment of physiological significance of coronary artery stenosis (CAS), and Adenosine (ADE) is associated with a high incidence of transient side effects. Sodium nitroprusside (NPS) has been proposed as an alternative vasodilator agent. A meta-analysis of studies comparing ADE and NPS for FFR assessment in the same coronary lesions was performed.

Contact lens-related Fusarium keratitis: a case report.

We aim to highlight the key factors for a good outcome of fungal keratitis. We describe a case of contact lens-related Fusarium keratitis in a young girl. After identification of Fusarium spp under direct microscopic examination and in culture, a prolonged treatment with topic natamycin 5% was started and administered for five months with restitutio ad integrum of the eye.

Study of η and η' Photoproduction at MAMI.

The reactions γp→ηp and γp→η^{'}p are measured from their thresholds up to the center-of-mass energy W=1.96  GeV with the tagged-photon facilities at the Mainz Microtron, MAMI. Differential cross sections are obtained with unprecedented statistical accuracy, providing fine energy binning and full production-angle coverage.

Data-driven RBE parameterization for helium ion beams.

Helium ion beams are expected to be available again in the near future for clinical use. A suitable formalism to obtain relative biological effectiveness (RBE) values for treatment planning (TP) studies is needed. In this work we developed a data-driven RBE parameterization based on published in vitro experimental values.

Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities.

The spin polarizabilities of the nucleon describe how the spin of the nucleon responds to an incident polarized photon. The most model-independent way to extract the nucleon spin polarizabilities is through polarized Compton scattering. Double-polarized Compton scattering asymmetries on the proton were measured in the Δ(1232) region using circularly polarized incident photons and a transversely polarized proton target at the Mainz Microtron.

Measurement of the transverse target and beam-target asymmetries in η meson photoproduction at MAMI.

We present new data for the transverse target asymmetry T and the very first data for the beam-target asymmetry F in the γ[over →]p[over →]→ηp reaction up to a center-of-mass energy of W=1.9  GeV. The data were obtained with the Crystal-Ball/TAPS detector setup at the Glasgow tagged photon facility of the Mainz Microtron MAMI.

A case of melioidosis probably acquired by inhalation of dusts during a helicopter flight in a healthy traveler returning from Singapore.

We present a case of melioidosis in an Italian male returning from Singapore after a short travel. He probably acquired the disease by inhalation, which is not the typical mode of transmission, in the absence of evident risk factors. The diagnosis was confirmed by real-time polymerase chain reaction of the culture while serology was useful to assess professional exposure among laboratory workers.

Outcomes and predictors of mortality among octogenarians and older with ST-segment elevation myocardial infarction treated with primary coronary angioplasty.

Background: Elderly patients are at high risk of mortality when they present with ST-elevation myocardial infarction (STEMI). However, few data exist about prognostic factors in this sub-group when treated with primary percutaneous coronary intervention (pPCI).

Hypothesis: To assess outcome and predictors of mortality among patients aged >80 years treated with pPCI.