1,721,006 research outputs found
Pneumopatie interstiziali idiopatiche
No full textIl capitolo illustra i principali quadri delle pneumopatie interstiziali idiopatiche secondo la più recente classificazione del 2013 dell’American Respiratory Society/European respiratory Society. Pur trattandosi di patologie rare, esse necessitano di un sofisticato iter diagnostico e di un approccio multidisciplinare. Per ogni entità nosologica vengono descritti i sintomi, il decorso, le caratteristiche radiologiche ed istopatologiche e le possibilità terapeutiche
Laparo-frenotomia con videotoracoscopia di servizio per la resezione sincrona di neoplasie addominali e metastasi polmonari
No full text
Surgical Treatment of a rare case of tracheal inflammatory pseudotumor in pediatric age.
No full textTracheal inflammatory pseudotumor (IPT) is a rare solid lesion with an unpredictable biological course. Treatment can vary and surgical resection may sometimes be necessary, even in pediatric age. We report the case of a 12-year-old male patient who presented to our institution with sudden dyspnoea after some months of wheezing and cough, wrongly considered and treated as asthma. Neck-chest CTscan and fiberbronchoscopy showed an intraluminal tracheal mass, originating from the left antero-lateral wall at the level of the 5th
cartilagineous tracheal ring, involing three rings, that was removed by rigid bronchoscopy. Histopathology revealed a tracheal IPT. Due to rapid tendency to recurrence of the lesion, two more endoscopic recanalizations were performed, but a new recurrence appeared, with CT evidence of transmural involvement of the tracheal wall. Resection of the three involved tracheal rings and termino-terminal tracheal anastomosis were successfully performed through cervicotomy and sternal split. CT-scan and fiberbronchoscopy at 17 months from surgery
show a stable tracheal lumen without signs of recurrence. A tracheal IPT should be suspected in any pediatric patients with tracheal mass and asthmatic symptoms. After radical removal prognosis is generally excellent and recurrences after tracheal resection are rare
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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