Giovanni Improta

Prof. Giovanni Improta

Dipartimento di Sanità Pubblica, Università degli studi di Napoli "Federico II", Italia - Centro Interdipartimentale Di Ricerca In Management Sanitario E Innovazione In Sanità (CIRMIS)
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Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

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

Representative Publications

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12 November 2019 in Journal of Evaluation in Clinical Practice
Verified
Journal Article
Open access
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Giovanni ImprotaGiovanni Improta
Giovanni Improta
VMValeria Mazzella
Valeria Mazzella
DVDonatella Vecchione
Donatella Vecchione
SSStefania Santini
Stefania Santini
MTMaria Triassi
Maria Triassi
Objectives: In the context of the gradual development of artificial intelligence in health care, the clinical decision support systems (CDSS) play an increasing crucial role in improving the quality of the therapeutic and diagnostic efficiency in health care. The fuzzy logic (FL) provides an effective means for dealing with uncertainties in the health decision‐making process; therefore, FL‐based CDSS becomes a very powerful tool for data and knowledge management, being able to think like an expert clinician. This work proposes an FL‐based CDSS for the evaluation of renal function in posttransplant patients.Method: Based on the data provided by the Department of Nephrology of the University Hospital Federico II of Naples, a statistical sample is selected according to appropriate inclusion criteria. Four fuzzy inference systems are implemented monitoring the renal function by the level of proteinuria and the glomerular filtration rate (GFR).Results: The systems show an accuracy of more than 90% and the outputs are provided through easy to read graphics, so that physicians can intuitively monitor the patient's clinical status, with the objective to improve drugs dosage and reduce medication errors.Conclusions: We propose that the CDSSs for the assessment and follow‐up of kidney‐transplanted patients built in this study are applicable to clinical practice.

31 December 2019 in Anticancer Research
Verified
Journal Article
Closed access
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VRValeria Romeo
Valeria Romeo
Renato CuocoloRenato Cuocolo
Renato Cuocolo
Carlo RicciardiCarlo Ricciardi
Carlo Ricciardi
LULorenzo Ugga
Lorenzo Ugga
SCSirio Cocozza
Sirio Cocozza
ABArturo Brunetti
Arturo Brunetti
Background/Aim: To investigate whether a radiomic machine learning (ML) approach employing texture-analysis (TA) features extracted from primary tumor lesions (PTLs) is able to predict tumor grade (TG) and nodal status (NS) in patients with oropharyngeal (OP) and oral cavity (OC) squamous-cell carcinoma (SCC). Patients and Methods: Contrast-enhanced CT images of 40 patients with OP and OC SCC were post-processed to extract TA features from PTLs. A feature selection method and different ML algorithms were applied to find the most accurate subset of features to predict TG and NS. Results: For the prediction of TG, the best accuracy (92.9%) was achieved by Naïve Bayes (NB), bagging of NB and K Nearest Neighbor (KNN). For the prediction of NS, J48, NB, bagging of NB and boosting of J48 overcame the accuracy of 90%. Conclusion: A radiomic ML approach applied to PTLs is able to predict TG and NS in patients with OC and OP SCC.

3 December 2018 in BMC Health Services Research
Verified
Journal Article
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Giovanni ImprotaGiovanni Improta
Giovanni Improta
Maria RomanoMaria Romano
Maria Romano
MCMaria Vincenza Di Cicco
Maria Vincenza Di Cicco
AFAnna Ferraro
Anna Ferraro
ABAnna Borrelli
Anna Borrelli
Mario CesarelliMario Cesarelli
Mario Cesarelli
Throughout the world, emergency departments (ED) are characterized by overcrowding and excessive waiting times. Furthermore, the related delays significantly increase patient mortality and make inefficient use of resources to the detriment of the satisfaction of employees and patients. In this work, lean thinking is applied to the ED of Cardarelli Hospital of Naples with the aim of increasing patient flow, improving the processes that contribute to facilitating the flow of patients through the various stages of medical treatment and eliminating all bottlenecks (queue) as well as all activities that generate waste. This project was performed at National Hospital A.O.R.N. A. Cardarelli of Naples. The historical times of access to the ED were analysed from January 2015 to June 2015, for a total of 16,563 records. Subsequently, starting in November 2015, corrective actions were implemented according to the Lean Approach. Data collected after the introduced improvements were collected from April 2016 to June 2016 and compared to those collected during the starting period. The results acquired before application of the Lean Thinking strategy illustrated the as-is process with its drawbacks. An analysis of the non-added value activities was performed to identify the procedures that need to be improved. After implementation of the corrective actions, we observed a positive increase in the performance of the ED, quantified as percentages of hospitalized patients according to triage codes and waiting times. This work demonstrates the applicability of Lean Thinking to ED processes and its effectiveness in terms of increasing the efficiency of services and reducing waste (waiting times).

1 December 2019 in Magnetic Resonance Imaging
Verified
Journal Article
Closed access
VRValeria Romeo
Valeria Romeo
Carlo RicciardiCarlo Ricciardi
Carlo Ricciardi
Renato CuocoloRenato Cuocolo
Renato Cuocolo
Arnaldo StanzioneArnaldo Stanzione
Arnaldo Stanzione
FVFrancesco Verde
Francesco Verde
SMSimone Maurea
Simone Maurea

Arianna ScalaArianna Scala
Arianna Scala
Alfonso Maria PonsiglioneAlfonso Maria Ponsiglione
Alfonso Maria Ponsiglione
ILIlaria Loperto
Ilaria Loperto
AVAntonio Della Vecchia
Antonio Della Vecchia
ABAnna Borrelli
Anna Borrelli
Giovanni ImprotaGiovanni Improta
Giovanni Improta
Surgical intervention within 48 h of hospital admission is the gold standard procedure for the management of elderly patients with femur fractures, since the increase in preoperative waiting time is correlated with the onset of complications and longer overall length of stay (LOS) in the hospital. However, national evidence demonstrates that there is still the need to provide timely intervention for this type of patient, especially in some regions of central southern Italy. Here we discuss the introduction of a diagnostic–therapeutic assistance pathway (DTAP) to reduce the preoperative LOS for patients undergoing femur fracture surgery in a university hospital. A Lean Six Sigma methodology, based on the DMAIC cycle (Define, Measure, Analyze, Improve, Control), is implemented to evaluate the effectiveness of the DTAP. Data were retrospectively collected and analyzed from two groups of patients before and after the implementation of DTAP over a period of 10 years. The statistics of the process measured before the DTAP showed an average preoperative LOS of 5.6 days (standard deviation of 3.2), thus confirming the need for corrective actions to reduce the LOS in compliance with the national guidelines. The influence of demographic and anamnestic variables on the LOS was evaluated, and the impact of the DTAP was measured and discussed, demonstrating the effectiveness of the improvement actions implemented over the years and leading to a significant reduction in the preoperative LOS, which decreased to an average of 3.5 days (standard deviation of 3.60). The obtained reduction of 39% in the average LOS proved to be in good agreement with previously developed DTAPs for femur fracture available in the literature.

26 September 2017 in Journal of Evaluation in Clinical Practice
Verified
Journal Article
Open access
PDF file
Giovanni ImprotaGiovanni Improta
Giovanni Improta
GBGiovanni Balato
Giovanni Balato
MRMaria Romano
Maria Romano
Alfonso Maria PonsiglioneAlfonso Maria Ponsiglione
Alfonso Maria Ponsiglione
EREliana Raiola
Eliana Raiola
Mario CesarelliMario Cesarelli
Mario Cesarelli
Rationale, Aims, and Objectives: The work is a part of a project about the application of the Lean Six Sigma to improve health care processes. A previously published work regarding the hip replacement surgery has shown promising results. Here, we propose an application of the DMAIC (Define, Measure, Analyse, Improve, and Control) cycle to improve quality and reduce costs related to the prosthetic knee replacement surgery by decreasing patients' length of hospital stay (LOS)Methods: The DMAIC cycle has been adopted to decrease the patients' LOS. The University Hospital “Federico II” of Naples, one of the most important university hospitals in Southern Italy, participated in this study. Data on 148 patients who underwent prosthetic knee replacement between 2010 and 2013 were used. Process mapping, statistical measures, brainstorming activities, and comparative analysis were performed to identify factors influencing LOS and improvement strategies.Results: The study allowed the identification of variables influencing the prolongation of the LOS and the implementation of corrective actions to improve the process of care. The adopted actions reduced the LOS by 42%, from a mean value of 14.2 to 8.3 days (standard deviation also decreased from 5.2 to 2.3 days).Conclusions: The DMAIC approach has proven to be a helpful strategy ensuring a significant decreasing of the LOS. Furthermore, through its implementation, a significant reduction of the average costs of hospital stay can be achieved. Such a versatile approach could be applied to improve a wide range of health care processes.