Alfredo Chetta

Alfredo Chetta


Research Focus & Metrics

Academic Career Length

40Years (1987-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 September 2014 in New England Journal of Medicine
Verified
Journal Article
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HOHector G. Ortega
Hector G. Ortega
MLMark C. Liu
Mark C. Liu
IPIan D. Pavord
Ian D. Pavord
GBGuy G. Brusselle
Guy G. Brusselle
JFJ. Mark FitzGerald
J. Mark FitzGerald
PCPascal Chanez
Pascal Chanez
Some patients with severe asthma have frequent exacerbations associated with persistent eosinophilic inflammation despite continuous treatment with high-dose inhaled glucocorticoids with or without oral glucocorticoids.

1 April 1997 in Chest
Verified
Journal Article
Closed access
Alfredo ChettaAlfredo Chetta
Alfredo Chetta
AFAntonio Foresi
Antonio Foresi
MDMario Del Donno
Mario Del Donno
GBGiuseppina Bertorelli
Giuseppina Bertorelli
APAlberto Pesci
Alberto Pesci
DODario Olivieri
Dario Olivieri

1 September 2006 in Respiratory Medicine
Verified
Journal Article
Closed access
Alfredo ChettaAlfredo Chetta
Alfredo Chetta
AZAndrea Zanini
Andrea Zanini
GPGiovanna Pisi
Giovanna Pisi
MAMarina Aiello
Marina Aiello
PTPanagiota Tzani
Panagiota Tzani
DODario Olivieri
Dario Olivieri

1 June 1997 in American Journal of Respiratory and Critical Care Medicine
Verified
Journal Article
Closed access
DOD Olivieri
D Olivieri
Alfredo ChettaAlfredo Chetta
Alfredo Chetta
MDM Del Donno
M Del Donno
GBG Bertorelli
G Bertorelli
ACA Casalini
A Casalini
AFA Foresi
A Foresi
In a double-blind, parallel-group study, we examined the effect of short-term treatment with inhaled fluticasone propionate (FP) in a group of 20 nonsmoking asthmatic patients who required only beta2-agonists to control their symptoms. We administered FP (250 microg twice daily) or matched placebo for 6 wk. Methacholine challenge was performed before treatment, after 3 wk, and at the end of treatment. Each patient underwent bronchoscopy with bronchoalveolar lavage (BAL) and bronchial biopsy before and after treatment. Eight patients in the placebo group and nine patients in the FP group completed the study. Bronchial responsiveness to methacholine decreased significantly only after 6 wk of treatment with FP (p < 0.05). When we compared the FP group with the placebo group, we observed a significant decrease only in the number of cells expressing intracellular adhesion molecule-1 (ICAM-1) and MAC-1 (p < 0.04 and p < 0.03, respectively). Moreover, we saw that the tryptase level in BAL decreased (p < 0.001), whereas the eosinophil cationic protein (ECP) level did not change significantly. Additionally, the number of eosinophils and mast cells in the lamina propria in bronchial biopsies specimens was significantly smaller in the FP group than in the placebo group (p < 0.02 and p < 0.01, respectively). Additionally, in the FP group, we found that basement-membrane thickness was significantly decreased when compared with that of the placebo group (p < 0.05). In conclusion, our results show that short-term treatment with low-dose FP reduces inflammatory cell infiltration into the lamina propria in bronchial biopsy specimens. Moreover, short-term low-dose FP treatment might control the intensity of airway remodeling in mild asthma.

1 January 2008 in European Journal of Cardio-Thoracic Surgery
Verified
Journal Article
Closed access
ABA Bobbio
A Bobbio
Alfredo ChettaAlfredo Chetta
Alfredo Chetta
LALuca Ampollini
Luca Ampollini
GPG Primomo
G Primomo
EIE Internullo
E Internullo
DOD Olivieri
D Olivieri
The impact of short-term preoperative pulmonary rehabilitation on exercise capacity of patients with chronic obstructive pulmonary disease undergoing lobectomy for non-small cell lung cancer is evaluated. A prospective observational study was designed. Inclusion criteria consisted of an indication to lung resection because of a clinical stage I or II non-small cell lung cancer and a chronic obstructive disease on preoperative pulmonary function test. In such conditions, maximal oxygen consumption by a cardio-pulmonary exercise test was evaluated; when this resulted as being < or =15 ml/kg/min a pulmonary rehabilitation programme lasting 4 weeks was considered. Twelve patients fulfilled inclusion criteria, completed the preoperative rehabilitation programme and underwent a new functional evaluation prior to surgery. The postoperative record of these patients was collected. On completion of pulmonary rehabilitation, the resting pulmonary function test and diffuse lung capacity of patients was unchanged, whereas the exercise performance was found to have significantly improved; the mean increase in maximal oxygen consumption proved to be at 2.8 ml/kg/min (p<0.01). Eleven patients underwent lobectomy; no postoperative mortality was noted and mean hospital stay was 17 days. Postoperative pulmonary complication was recorded in 8 patients. Short-term preoperative pulmonary rehabilitation could improve the exercise capacity of patients with chronic obstructive pulmonary disease who are candidates for lung resection for non-small cell lung cancer.

1 May 2007 in Physical Therapy
Verified
Journal Article
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PDF file
ARAnais Rampello
Anais Rampello
MFMarco Franceschini
Marco Franceschini
MPMassimo Piepoli
Massimo Piepoli
RARoberto Antenucci
Roberto Antenucci
GLGabriella Lenti
Gabriella Lenti
Alfredo ChettaAlfredo Chetta
Alfredo Chetta
Background and Purpose Physical deconditioning is involved in the impaired exercise tolerance of patients with multiple sclerosis (MS), but data on the effects of aerobic training (AT) in this population are scanty. The purpose of this study was to compare the effects of an 8-week AT program on exercise capacity—in terms of walking capacity and maximum exercise tolerance, as well as its effects on fatigue and health-related quality of life—as compared with neurological rehabilitation (NR) in subjects with MS. Subjects and Methods Nineteen subjects (14 female, 5 male; mean age [X̄±SD]=41±8 years) with mild to moderate disability secondary to MS participated in a randomized crossover controlled study. Eleven subjects (8 female, 3 male; mean age [X̄±SD]=44±6 years) completed the study. Results After AT, but not NR, the subjects’ walking distances and speeds during a self-paced walk were significantly improved, as were their maximum work rate, peak oxygen uptake, and oxygen pulse during cardiopulmonary exercise tests. The increases in peak oxygen uptake and maximum work rate, but not in walking capacity, were significantly higher after AT, as compared with after NR. Additionally, the subjects who were most disabled tended to benefit more from AT. There were no differences between AT and NR in effects on fatigue, and the results showed that AT may have partially affected health-related quality of life. Discussion and Conclusion The results suggest that AT is more effective than NR in improving maximum exercise tolerance and walking capacity in people with mild to moderate disability secondary to MS.