1,720,974 research outputs found
Limits and complications of mini-invasive surgery of major pulmonary resections
No full textA personal series of 67 major pulmonary resections (62 lobectomies, 4 pneumonectomies, 1 segmentectomy) and 7 other converted procedures is reviewed. Conversions, technical difficulties and intra and postoperative complications mainly consisted of: pleural adhesions, incomplete fissures, vascular and bronchial isolation-section, inedequacy of instrmentation. In the reported series, a major problem and often cause of conversion was isolation of the artery within the fissure when the latter is incomplete, poorly developed or sealed. Current instruments must be improved and new endoscopic devices for thoracic use may be useful. Post-operative complications do not differ from open surgery
Technique of thoracoscopic retrieval of the lung
No full textExtraction of a resected specimen after a thoracic minimally invasive operation presents different problems depending on the amount of parenchyma removed. After a major pulmonary resection (lobectomy or pneumonectomy), the size of the specimen always requires a minimal thoracotomy incision of at least 5-6 cm. In the case of neoplasms it is mandatory to adopt precautions in order to protect the wound edges from possible tumoral seeding during the extraction. The authors, based on their personal experience of 545 video-thoracoscopic procedures, discuss the problems of retrieving the specimens after video-endoscopic resections and describe techniques and precautions which must be taken to extract the resected tissue safely
Staging and treatment of lung cancer by videothoracoscopic technique. 60th Annual International Scientific Assembly of The American College of Chest Physicians. New Orleans, Louisiana, October 30-November 3, 1994. Abstracts
No full textAfter a conventional pre operative staging, 150 patients affected
by lung cancer were submitted to Videothoracoscopic Operative
Staging (V.O.S.) in order to: 1) verify the resectability of the
lesion; 2) rule out any condition of inoperability; 3) assess the
technical feasibility of video-endoscopic removal.
The pts. were subdivided in three main groups: A) 13 pts. with
peripheral (0.5-2cm.) and hystologically identified cancer in
whom cardio-respiratory conditions were so compromised to
exclude thoracotomy or major resections. B) 79 pts. with lung
cancer at 11 and Ill stage in whom videothoracoscopy is
performed for better staging or excluding causes of inoperability
unrecognisable preoperatively. C) Pts. with lung cancer
preoperatively staged Ti N0-T2NO.
The pts. of group A were submitted to videothoracoscopic wedge
resection. In group B V.O.S. revealed inoperability in 11 pts.. In 4
pts. videothoracoscopic exploration could not adequately carried
out and an open exploration proved no resectability. Operability
was confirmed in 58 who were subjected to a traditional
intervention. In 56 pts. of group C 4 videothoracoscopic
pneumonectomies and 52 videoendoscopic lobectomies were
carried out with loco-regional lymphoadenectomy
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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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