611 research outputs found
Visual abstract - Supplemental material for Emergency Endovascular Total Arch Exclusion With an Off-the-Shelf Bimodular Device
No full textSupplemental material, sj-pptx-1-inv-10.1177_15569845211050388 for Emergency Endovascular Total Arch Exclusion With an Off-the-Shelf Bimodular Device by Giorgia Cibin, Augusto D'Onofrio, Michele Antonello, Piero Battocchio and Gino Gerosa in Innovations</p
Piero Sraffa and His Books – a foreword to the Catalogue of his inimitable library
No full textThis foreword gives a preview of the sort of books Piero Sraffa collected, specifying the criteria that appear to have been used for the selection. The Author of this foreword is convinced that the discovery of these criteria may help to understand the basis of the type of history of economic thought that Piero Sraffa had in mind
Diagnostic reliability of pretreatment biopsy in malignant nasoethmoidal tumors: A retrospective study of 77 cases
No full textPretreatment biopsy is crucial in histology-based management of malignant nasoethmoidal tumors, because misdiagnosis can lead to inadequate therapeutic planning. Factors influencing the reliability of biopsy were retrospectively investigated in a tertiary referral center
ViPS (Viabahn Padova Sutureless) technique: Preliminary results in the treatment of peripheral arterial disease
No full textBACKGROUND:
To describe early results of a novel technique (ViPS, Viabahn Padova Sutureless) that connects a vascular prosthetic graft to a target artery in a sutureless fashion.
METHODS:
A consecutive series of five patients with peripheral arterial occlusive disease (Rutherford class IV and V) underwent six ViPS procedures (one bilateral) for limb revascularization. Angiography in all cases demonstrated complete superficial femoral artery (SFA) occlusion with reconstitution of a circumferentially calcified above-knee popliteal artery. Ultrasonography revealed no adequate vein for autogenous bypass creation. In all cases, a previous attempt of SFA endovascular recanalization was unsuccessful. A Viabahn (W.L. Gore, Flagstaff, AZ) endoprosthesis was partially deployed, and its proximal end was sutured to a polytetrafluoroethylene graft. After surgical exposure, the circumferentially calcified popliteal artery, which could not be safely sutured, was transected and the undeployed distal portion of the Viabahn was inserted into the popliteal artery supported by a stiff guidewire. The distal portion of the Viabahn graft was then deployed 2.5 cm into the popliteal artery with optimal apposition. The proximal end of the polytetrafluoroethylene graft was then sutured to the common femoral artery. The distal portion of the Viabahn was ballooned to ensure apposition with the popliteal artery.
RESULTS:
The mean time for surgical modification of the device was 6.6 minutes with a mean time for ViPS anastomosis deployment of 7 seconds. Mean operative time for ViPS procedure was 61 minutes (range: 48-74). Completion angiogram in all cases demonstrated a patent graft with no sign of dissection. The patients' symptoms resolved in all cases, with complete ulcer healing occurring in five patients within 3 weeks. Follow-up imaging (mean = 2.6 months, range: 1-5) with eco-color-Doppler and computed tomography angiogram demonstrated a patent graft with no loss of device integrity in all cases.
CONCLUSION:
The ViPS technique is simple, easily performed, and provides an alternative for bypass creation, particularly in cases where challenging arterial anastomoses are required. Furthermore, this technique has the potential to reduce operative time and is accomplished using common commercially available devices
Primary parotid carcinoma: analysis of risk factors and validation of a prognostic index
No full textPrimary cancer of the parotid gland (PG) is a rare disease characterized by a wide variety of histologies and subtypes. The aim of the study was to identify factors influencing survival and validate the prognostic scores (PS1 and PS2) by Vander Poorten et al. STUDY DESIGN: Retrospective cohort study
Piero Vignozzi, o dell'impronta residua
No full textThe author considers the tendency in the d'après by Piero Vignozzi to elide elements of well-known works by old masters, and concludes that we are seeing a reflection of Robert Rauschenberg's Erased de Kooning Drawing
Does the type of carotid artery closure influence the management of recurrent carotid artery stenosis? Results of a 6-year prospective comparative study
No full textObjective
The purpose of the study was to evaluate the results of reoperative surgery and carotid artery stenting (CAS) in cases of recurrent carotid artery stenosis (RCS) and to compare the results of all RCS (reoperative surgery + CAS) with primary carotid endarterectomy (CEA) performed during the study period.
Summary Background Data
Consensus has not yet been established on the best treatment for RCS. Recently CAS has emerged as a potential alternative to carotid endarterectomy.
Methods
A 6-year (Jan 2000-Dec 2005) prospective study was performed. Eligible patients were those with symptomatic or asymptomatic RCS ≥80% at a preoperative angiography or angio-computed tomography. The carotid plaques were classified at a preoperative ultrasonographic scan, according to the five type classification proposed by Geroulakos (Br J Surg 1993;80:1274-7). Patients with type 1 and 2 carotid plaque were not considered for CAS.
Results
56 patients were enrolled. Fifteen patients with a type 1-2 plaque underwent reoperative surgery, 41 with type 3-4 plaque underwent CAS. In 90.6% of primary closure a type 3-4 carotid plaque was found; a type 1-2 was observed in 84.5% of the polytetrafluoroethylene patch closure group. No statistical difference for the 30-day and the 6 year stroke-free rate was observed; similarly no differences emerged between all RCS (reoperative surgery + CAS) performed and primary CEA.
Conclusions
CAS is an acceptable alternative to surgery in the management of RCS. An accurate patient selection is required. Restenosis after CEA and direct closure is mostly associated with fibrous material. In these cases CAS might be the best choice.
Randomized trials have shown that carotid endarterectomy (CEA) is the criterion standard to reduce stroke in symptomatic and asymptomatic patients with significant carotid stenosis. [1] and [2]
The management of recurrent carotid stenosis (RCS) after CEA is still controversial because of the more benign nature of these lesions and the higher complication rate reported for reoperative surgery. [3], [4], [5], [6], [7] and [8] Reoperative surgery is generally recommended for asymptomatic stenosis >80% and for significant carotid restenosis in symptomatic patients. [3], [4], [5], [6], [7] and [8]
Recently carotid artery stenting (CAS) has emerged as a potential alternative to CEA. This procedure has been advocated by many authors as the treatment of choice for RCS because it is perceived that reoperative surgery carries higher perioperative stroke rates and cranial nerve injury rates than primary CEA. [9] and [10]
Few studies compare the results of CEA with CAS regarding RCS; inclusion criteria for CAS in these series did not pay any attention to the morphology of the carotid plaque. [11], [12] and [13] Different studies evaluated the relationship between the ecomorphology of the plaque and the histologic components; they also showed that a low echogenicity of the carotid plaque is associated with an increased risk of embolism during CAS. [14], [15] and [16]
The purpose of this prospective comparative study was to evaluate the results of reoperative surgery and CAS in cases of RCS in which the treatment selection was decided on the basis of the echogenicity of the carotid plaque and to compare the stroke-free rate of all RCS (reoperative surgery + CAS) and of primary CEA performed during the study period
Esserci e temporalità ne «La figlia di Babilonia» di Piero Bigongiari
No full textBeing there and temporality in La figlia di Babilonia of Piero Bigongiari · In this paper the author takes on Piero Bigongiari’s book of poetry La figlia di Babilonia (1942) by means of the categories of being-there and temporality by Martin Heidegger. Through an analysis of the Tuscan poet’s essays and interviews and foremost through the most important texts of this book poetry, the author shows how hermetic poetic is deeply rooted in the diffusion of German existentialism in Ital
Il Ponte di Piero Calamandrei
No full textThe paper traces the history of the journal Il Ponte, founded by Piero Calamandrei in April 1945, in order to capture the ideal roots of this audacious publishing initiative. The Author focuses on the liberal-socialist vocation of the journal and on the ideals of European federalism that led Calamandrei to oppose the Atlantic Pact. Lastly, he delves into the commitment of the Florentine jurist in support of the Constitution, democracy and the Welfare State
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