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Bernocchi P, Giudici V, Borghi G, Bertolaia P, D'Isa S, Trevisan R, Scalvini S. Telemedicine home-based management in patients with chronic heart failure and diabetes type II: study protocol for a randomized controlled trial. Trials 2024; 25:333. [PMID: 38773662 PMCID: PMC11106884 DOI: 10.1186/s13063-024-08171-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 05/10/2024] [Indexed: 05/24/2024] Open
Abstract
BACKGROUND Heart failure and type 2 diabetes are prevalent public health issues in Europe. These complex chronic conditions require extensive pharmacological management, ongoing self-care, and behavioral changes. Despite the known benefits of lifestyle changes, such as regular exercise and better control of blood sugar levels, patients may need help implementing the recommended changes. This study aims to assess the effectiveness of a telemedicine program for managing heart failure and type 2 diabetes at home. The program focuses on promoting lifestyle changes. METHODS AND ANALYSIS During scheduled outpatient cardiology evaluations, eligible patients are recruited and randomly assigned to either an intervention or control group in a 1:1 ratio. The intervention group receives support from a nursing case manager through a structured home-based teleassistance program and a trainer for daily physical activity stimulation. They also have access to teleconsultations with cardiologists and diabetes specialists as needed, telemonitoring of vital signs, and daily step tracking. An app records and monitors daily drug treatment, glycemia, blood pressure, heart rate, and other clinical parameters. Patients can also self-report symptoms and communicate via a chat and videoconference system with a Nurse Case Manager. The control group receives routine care. Data collection occurs before intervention and 6 months after baseline during a new outpatient cardiology evaluation. The primary outcome is to measure the difference in the distance walked during a 6-min walk test between baseline and after 6 months. The key secondary outcomes include improving the disease status and physical activity profile. Data will be analyzed according to the intention-to-treat principles. DISCUSSION This study will provide evidence on the efficacy of a telemedicine home-based management model to maintain correct lifestyles in patients with both heart failure and type 2 diabetes, improving self-management, their empowerment on the diseases, and increasing their knowledge and ability to recognize symptoms early. TRIAL REGISTRATION ClinicalTrials.gov NCT05633784. Registered on November 30, 2022.
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Affiliation(s)
- Palmira Bernocchi
- Continuity of Care Service, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Via G. Mazzini 129, 25065, Lumezzane, Brescia, Italy.
| | - Vittorio Giudici
- Department of Cardiac Rehabilitation, Bolognini Hospital, Azienda Socio-Sanitaria Territoriale Bergamo Est, Seriate, Bergamo, Italy
| | - Gabriella Borghi
- Continuity of Care Service, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Via G. Mazzini 129, 25065, Lumezzane, Brescia, Italy
| | - Patrizia Bertolaia
- Socio-Health Management Direction, Azienda Socio-Sanitaria Territoriale Bergamo Est, Seriate, Bergamo, Italy
| | - Salvatore D'Isa
- Cardiovascular Department, Cardiology Unit, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Roberto Trevisan
- Endocrinology and Diabetes Unit, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Simonetta Scalvini
- Continuity of Care Service, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Via G. Mazzini 129, 25065, Lumezzane, Brescia, Italy
- Cardiac Rehabilitation Unit, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Brescia, Italy
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Vanoglio F, Comini L, Gaiani M, Bonometti GP, Luisa A, Bernocchi P. A Sensor-Based Upper Limb Treatment in Hemiplegic Patients: Results from a Randomized Pilot Study. Sensors (Basel) 2024; 24:2574. [PMID: 38676190 PMCID: PMC11054364 DOI: 10.3390/s24082574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/12/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024]
Abstract
In post-stroke patients, the disabling motor deficit mainly affects the upper limb. The focus of rehabilitation is improving upper limb function and reducing long-term disability. This study aims to evaluate the feasibility of using the Gloreha Aria (R-Lead), a sensor-based upper limb in-hospital rehabilitation, compared with conventional physiotherapist-led training in subacute hemiplegic patients. Twenty-one patients were recruited and randomised 1:1 to a sensor-based group (treatment group TG) or a conventional group (control group, CG). All patients performed 30 sessions of 30 min each of dedicated upper limb rehabilitation. The Fugl-Meyer Assessment for Upper Extremity (FMA-UE) was the primary evaluation., both as a motor score and as individual items. Secondary evaluations were Functional Independence Measure; global disability assessed with the Modified Barthel Index; Motor Evaluation Scale for UE in stroke; power grip; and arm, shoulder, and hand disability. All the enrolled patients, 10 in the TG and 11 in the CG, completed all hand rehabilitation sessions during their hospital stay without experiencing any adverse events. FMA-UE scores in upper limb motor function improved in both groups [delta change CG (11.8 ± 9.2) vs. TG (12.7 ± 8.6)]. The score at T1 for FMA joint pain (21.8 vs. 24 best score) suggests the use of the Gloreha Aria (R-Lead) as feasible in improving arm function abilities in post-stroke patients.
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Affiliation(s)
- Fabio Vanoglio
- Neuromotor Rehabilitation Unit of Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, 25065 Lumezzane, Italy; (F.V.); (M.G.); (G.P.B.); (A.L.)
| | - Laura Comini
- Scientific Direction of Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, 25065 Lumezzane, Italy;
| | - Marta Gaiani
- Neuromotor Rehabilitation Unit of Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, 25065 Lumezzane, Italy; (F.V.); (M.G.); (G.P.B.); (A.L.)
| | - Gian Pietro Bonometti
- Neuromotor Rehabilitation Unit of Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, 25065 Lumezzane, Italy; (F.V.); (M.G.); (G.P.B.); (A.L.)
| | - Alberto Luisa
- Neuromotor Rehabilitation Unit of Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, 25065 Lumezzane, Italy; (F.V.); (M.G.); (G.P.B.); (A.L.)
| | - Palmira Bernocchi
- Continuity of Care Service of Institute of Lumezzane, Istituti Clinici Scientifici Maugeri IRCCS, 25065 Lumezzane, Italy
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Paneroni M, Scalvini S, Perger E, Zampogna E, Govetto S, Oliva FM, Matrone A, Bernocchi P, Rosa D, Vitacca M. Home-based exercise program for people with residual disability following hospitalization for COVID-19: Randomized control trial. Ann Phys Rehabil Med 2024; 67:101815. [PMID: 38479344 DOI: 10.1016/j.rehab.2023.101815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 04/02/2024]
Abstract
BACKGROUND The best exercise program for individuals with effort intolerance or hypoxia at rest and/or during exercise post-COVID-19 treatment who have already had in-hospital rehabilitation remains unknown. OBJECTIVE We evaluated the efficacy of a home-based rehabilitation exercise program intervention that included teleconsultations with a specialist nurse. METHODS This was a multicenter randomized controlled trial for individuals who had been diagnosed with, and treated for, COVID-19. Despite inpatient rehabilitation they still had effort intolerance; this was defined as being a) only able to walk <70 % of the predicted distance during the six-minute walking test (6MWT) and/or b) oxygen desaturation all day long/during effort. The primary outcome was effort tolerance, as evaluated by the 6MWT. Secondary outcomes were dyspnea, fatigue, spirometry, respiratory muscle evaluations, and oxygenation. The Intervention group performed 4 weeks of a self-directed exercise program with bi-weekly physiotherapist video calls; the Control group participated in physical activity howsoever they wished. Exercises were divided into 4 intensity levels according to disability and oxygen desaturation. The program progressively increased from low (walking, free-body exercise, sit-to-stand, and balance exercises) to high (speed walking with a pedometer, cycle ergometer, and strengthening exercises). RESULTS We included 79 participants: 40 in the Intervention and 39 in the Control group. Mean (SD) age was 67.1 (10.3) years; 72 % (n = 57) were male. No intergroup differences in effort tolerance were found [Intervention 77.6 (75.4)m vs Control 49.5 (73.3)m (p = 0.109)]. Participants with 6MWT distance results < lower limit of normality values showed best improvements in mean (SD) effort tolerance: Intervention, 120.1 (75.8)m vs Control, 59.1 (75.6)m (p = 0.035). After 2 months, mean (SD) 6MWT distances in the 2 groups were similar: Intervention, 475.9 (82.4)m vs Control, 469.2 (118.9)m (p = 0.807). CONCLUSIONS In individuals with residual disability post-COVID-19 and after inpatient rehabilitation, a home-based exercise program with teleconsultation significantly improves effort tolerance but only for people who had severe effort intolerance at baseline. DATABASE REGISTRATION ClinicalTrials.gov number, NCT04821934.
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Affiliation(s)
- Mara Paneroni
- Istituti Clinici Scientifici Maugeri IRCCS, Cardio-Respiratory Rehabilitation Unit of the Institute of Lumezzane, Brescia, Italy.
| | - Simonetta Scalvini
- Istituti Clinici Scientifici Maugeri IRCCS, Cardiac Rehabilitation and Continuity of Care Units of Institute of Lumezzane, Brescia, Italy
| | - Elisa Perger
- Istituto Auxologico Italiano, IRCCS, Sleep Disorders Center & Department of Cardiovascular, Neural and Metabolic Sciences, San Luca Hospital, Milan, Italy; University of Milano Bicocca, Department of Medicine and Surgery, Milan, Italy
| | - Elisabetta Zampogna
- Istituti Clinici Scientifici Maugeri IRCCS, Respiratory Rehabilitation Unit of the Institute of Tradate, Varese, Italy
| | - Simone Govetto
- Istituto Auxologico Italiano, IRCCS, Sleep Disorders Center & Department of Cardiovascular, Neural and Metabolic Sciences, San Luca Hospital, Milan, Italy
| | - Federico Mattia Oliva
- Istituti Clinici Scientifici Maugeri IRCCS, Respiratory Rehabilitation Unit of the Institute of Tradate, Varese, Italy
| | - Ambra Matrone
- Istituti Clinici Scientifici Maugeri IRCCS, Cardiac Rehabilitation and Continuity of Care Units of Institute of Lumezzane, Brescia, Italy
| | - Palmira Bernocchi
- Istituti Clinici Scientifici Maugeri IRCCS, Cardiac Rehabilitation and Continuity of Care Units of Institute of Lumezzane, Brescia, Italy
| | - Debora Rosa
- Istituto Auxologico Italiano, IRCCS, Sleep Disorders Center & Department of Cardiovascular, Neural and Metabolic Sciences, San Luca Hospital, Milan, Italy
| | - Michele Vitacca
- Istituti Clinici Scientifici Maugeri IRCCS, Respiratory Rehabilitation Unit of the Institute of Lumezzane, Brescia, Italy
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Bernocchi P, Crotti G, Beato E, Bonometti F, Giudici V, Bertolaia P, Perger E, Remuzzi A, Bachetti T, La Rovere MT, Dalla Vecchia LA, Angeli F, Parati G, Borghi G, Vitacca M, Scalvini S. COVID-19 teleassistance and teleconsultation: a matched case-control study (MIRATO project, Lombardy, Italy). Front Cardiovasc Med 2023; 10:1062232. [PMID: 37645519 PMCID: PMC10461473 DOI: 10.3389/fcvm.2023.1062232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 07/31/2023] [Indexed: 08/31/2023] Open
Abstract
Background During the COVID-19 pandemic, telemedicine has been recognised as a powerful modality to shorten the length of hospital stay and to free up beds for the sicker patients. Lombardy, and in particular the areas of Bergamo, Brescia, and Milan, was one of the regions in Europe most hit by the COVID-19 pandemic. The primary aim of the MIRATO project was to compare the incidence of severe events (hospital readmissions and mortality) in the first three months after discharge between COVID-19 patients followed by a Home-Based Teleassistance and Teleconsultation (HBTT group) program and those discharged home without Telemedicine support (non-HBTT group). Methods The study was designed as a matched case-control study. The non-HBTT patients were matched with the HBTT patients for sex, age, presence of COVID-19 pneumonia and number of comorbidities. After discharge, the HBTT group underwent a telecare nursing and specialist teleconsultation program at home for three months, including monitoring of vital signs and symptoms. Further, in this group we analysed clinical data, patients' satisfaction with the program, and quality of life. Results Four hundred twenty-two patients per group were identified for comparison. The median age in both groups was 70 ± 11 years (62% males). One or more comorbidities were present in 86% of the HBTT patients and 89% in the non-HBTT group (p = ns). The total number of severe events was 17 (14 hospitalizations and 3 deaths) in the HBTT group and 40 (26 hospitalizations and 16 deaths) in the non-HBTT group (p = 0.0007). The risk of hospital readmission or death after hospital discharge was significantly lower in HBTT patients (Log-rank Test p = 0.0002). In the HBTT group, during the 3-month follow-up, 5,355 teleassistance contacts (13 ± 4 per patient) were performed. The number of patients with one or more symptoms declined significantly: from 338 (78%) to 183 (45%) (p < 0.00001). Both the physical (ΔPCS12: 5.9 ± 11.4) component and the mental (ΔMCS12: 4.4 ± 12.7) component of SF-12 improved significantly (p < 0.0001). Patient satisfaction with the program was very high in all participants. Conclusions Compared to usual care, an HBTT program can reduce severe events (hospital admissions/mortality) at 3-months from discharge and improve symptoms and quality of life. Clinical trial registration www.ClinicalTrials.gov, NCT04898179.
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Affiliation(s)
- Palmira Bernocchi
- Continuity Care and Telemedicine Service, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Brescia, Italy
| | - Giacomo Crotti
- Epidemiology Unit, Bergamo Health Protection Agency, Bergamo, Italy
| | - Elvira Beato
- Epidemiology Unit, Bergamo Health Protection Agency, Bergamo, Italy
| | - Francesco Bonometti
- Continuity Care and Telemedicine Service, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Brescia, Italy
| | - Vittorio Giudici
- Department of Cardiac Rehabilitation, Bolognini Hospital, Azienda Socio Sanitaria Territoriale Bergamo Est, Bergamo, Italy
| | - Patrizia Bertolaia
- Socio-Health Management Direction, Azienda Socio Sanitaria Territoriale Bergamo Est, Bergamo, Italy
| | - Elisa Perger
- Istituto Auxologico Italiano, IRCCS, Sleep Disorders Center & Department of Cardiovascular, Neural and Metabolic Sciences, San Luca Hospital, Milan, Italy
| | - Andrea Remuzzi
- Department of Management, Information and Production Engineering, University of Bergamo, Bergamo, Italy
| | - Tiziana Bachetti
- Scientific Direction, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Maria Teresa La Rovere
- Cardiac Rehabilitation Division, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Montescano, Pavia, Italy
| | | | - Fabio Angeli
- Department of Medicine and Technological Innovativon (DiMIT), University of Insubria, Varese, Italy
- Department of Medicine and Cardiopulmonary Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Tradate, Varese, Italy
| | - Gianfranco Parati
- Department of Cardiology, Istituto Auxologico Italiano, IRCCS, San Luca Hospital, Milan, Italy
- Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
| | - Gabriella Borghi
- Continuity Care and Telemedicine Service, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Brescia, Italy
| | - Michele Vitacca
- Department of Respiratory Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Brescia, Italy
| | - Simonetta Scalvini
- Continuity Care and Telemedicine Service, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Brescia, Italy
- Department of Cardiac Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Institute of Lumezzane, Brescia, Italy
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Bonometti F, Bernocchi P, Vitali A, Savoldelli A, Rizzi C, Scalvini S. Usability of a continuous oxygen saturation device for home telemonitoring. Digit Health 2023; 9:20552076231194547. [PMID: 37588158 PMCID: PMC10426309 DOI: 10.1177/20552076231194547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 07/27/2023] [Indexed: 08/18/2023] Open
Abstract
Background The emergency for the COVID-19 pandemic has led to greater use of home telemonitoring devices. The aim of this study was to assess the usability of continuous home-monitoring care with an oxygen saturation device on post-COVID-19 patients. Method The system consists of a digital continuous pulse oximeter and a smartphone with an App, which were provided to patients. A survey composed of a standard Post-Study System Usability Questionnaire, and a satisfaction questionnaire was exploited to conduct a usability and feasibility analysis of the service. Results A total of 29 patients (17.2% female) with a mean age of 65 ± 11.5 years were enrolled: 20 patients were smartphone users (69%) with a mean age of 60.2 ± 9.5 years, and 9 patients (31%) did not own a smartphone (mean age 76.8 ± 5.9). The monitoring period was 1 month: a total of 444 recordings were conducted, 15 recordings per patient averagely. In total, 82% of the recordings performed did not require any intervention, while 18% led to the production of a report and subsequent intervention by a nurse who verified, together with the specialist, the need to intervene (i.e. the patient accessed the clinic for medical control and/or modification of oxygen therapy). A total of 17 patients compiled a usability questionnaire. The service was perceived as useful and well-structured, although it often required caregiver support. Conclusions Using continuous home-monitoring care with an oxygen saturation device seems feasible and useful for patients who could be followed at home avoiding going back to the hospital every time a trend oximetry is needed. Further improvements in connections, data flow processes, and simplifications, based on patients' feedback, are needed to scale up the service.
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Affiliation(s)
- Francesco Bonometti
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity of Care Service of the Institute of Lumezzane, Brescia, Italy
| | - Palmira Bernocchi
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity of Care Service of the Institute of Lumezzane, Brescia, Italy
| | - Andrea Vitali
- Department of Management, Information and Production Engineering, University of Bergamo, Bergamo, Italy
| | - Anna Savoldelli
- Department of Management, Information and Production Engineering, University of Bergamo, Bergamo, Italy
| | - Caterina Rizzi
- Department of Management, Information and Production Engineering, University of Bergamo, Bergamo, Italy
| | - Simonetta Scalvini
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity of Care Service of the Institute of Lumezzane, Brescia, Italy
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Vitali A, Ghidotti A, Savoldelli A, Bonometti F, Rizzi C, Bernocchi P, Borghi G, Scalvini S. Definition of a Method for the Evaluation of Telemedicine Platforms in the Italian Context. Telemed J E Health 2022; 29:769-777. [PMID: 36206021 DOI: 10.1089/tmj.2022.0326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: The COVID-19 outbreak led to the diffusion of several telemedicine solutions. The choice of the correct platform is crucial for ensuring the release of effective assistance. However, there is a lack of an objective method for the assessment of technical features. Objective: This study proposes a methodology for the evaluation of functional requirements of telemedicine platforms. This approach also permits the comparison of solutions in the Italian market by means of defined parameters, thus directing the choice of health care professionals. Methods: The study is divided into three phases. First, a mapping of the telemedicine platforms operating in Italy is performed. Then, the available platforms are selected based on the offered telemedicine activity. Finally, a method for evaluating the investigated platforms is defined. Results: Thirty-three (n = 33) technological systems were identified through an accurate investigation on the web and interviews with IT companies. Fifteen parameters were defined and organized into three categories: (1) usability of the telemedicine platform, (2) security, and (3) technological and organizational aspects. A score between 1 and 4 was assigned to each parameter, proportionally to the completeness of the platform. In particular, 62.96% of platforms reached an average score between 3.01 and 4 points; 33.33% of them had scores between 2.01 and 3, while the remaining 3.70% of solutions obtained a result between 1.01 and 2. Conclusions: The study provides an evaluation approach that is easily usable by health professionals to select the most suitable platform. The number of solutions and quality of information could be updated to obtain a complete tool.
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Affiliation(s)
- Andrea Vitali
- Department of Management, Information and Production Engineering, University of Bergamo, Bergamo, Italy
| | - Anna Ghidotti
- Department of Management, Information and Production Engineering, University of Bergamo, Bergamo, Italy
| | - Anna Savoldelli
- Department of Management, Information and Production Engineering, University of Bergamo, Bergamo, Italy
| | - Francesco Bonometti
- Istituti Clinici Scientifici Maugeri IRCCS Continuity of Care (Telemedicine Service) of the Institute of Lumezzane, Brescia, Italy
| | - Caterina Rizzi
- Department of Management, Information and Production Engineering, University of Bergamo, Bergamo, Italy
| | - Palmira Bernocchi
- Istituti Clinici Scientifici Maugeri IRCCS Continuity of Care (Telemedicine Service) of the Institute of Lumezzane, Brescia, Italy
| | - Gabriella Borghi
- Istituti Clinici Scientifici Maugeri IRCCS Continuity of Care (Telemedicine Service) of the Institute of Lumezzane, Brescia, Italy
| | - Simonetta Scalvini
- Istituti Clinici Scientifici Maugeri IRCCS Continuity of Care (Telemedicine Service) of the Institute of Lumezzane, Brescia, Italy
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Bernocchi P, Bonometti F, Serlini M, Assoni G, Zanardini M, Pasotti E, Guerrini S, Scalvini S. Telehealth and Telecare: A Real-Life Integrated Experience in the COVID-19 Pandemic. Telemed J E Health 2021; 28:720-727. [PMID: 34402684 DOI: 10.1089/tmj.2021.0181] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background: In the first few months of 2020, Lombardy was the hardest-hit region in Italy for COVID-19 cases. Our Rehabilitation Institute offered a telemedicine service to COVID-19 patients discharged after hospitalization. Methods: Patients transferred from Emergency, Intensive Care, and Pulmonology departments of the principal regional hospital hubs had an average stay in our hospital of 2-3 weeks. On discharge, at home, they underwent a telecare nursing and specialist teleconsultation program for 3 months, including monitoring of vital signs and symptoms. Patients completed the SF-12 questionnaire at the start and end of the program and rated their satisfaction with it. Results: The program involved 130 patients (51%). During the period, there were 14 ± 2 (1,800 in total) telenursing support phone calls per patient made, and 12.5 ± 3.4 oxygen saturation readings per patient (1,631 in total). Persisting symptoms, frequently in combination, were present at the start of the program in 124 (94%) patients. There was a significant reduction of symptoms (p < 0.0000) after the telecare program. The physical component of SF-12 significantly improved at the end [Δ(t1-t0) = 6.7 ± 9.3, p < 0.0001]. On the contrary, the mental component of SF-12 remained unchanged or decreased slightly in patients ≤70 years of age [Δ(t1-t0) = -2.7 ± 12.3, ns], while it decreased significantly [Δ(t1-t0) = -5.4 ± 12.4, p = 0.0367] in older patients (although remaining mild). Patient satisfaction with the program was very high in all 130 patients. Conclusions: Our Telehealth and Telecare Service offers an example of rapid scaling and adaptation of an existing program to meet the needs of COVID-19 patients. Our findings indicate that telemedicine can be an integral part of clinical practice if supported by the institution with training and IT support provided to patients, nurses, and clinicians.
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Affiliation(s)
- Palmira Bernocchi
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit of Lumezzane Institute, Italy
| | - Francesco Bonometti
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit of Lumezzane Institute, Italy
| | - Marilisa Serlini
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit of Lumezzane Institute, Italy
| | - Giuliano Assoni
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit of Lumezzane Institute, Italy
| | - Margherita Zanardini
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit of Lumezzane Institute, Italy
| | - Elisa Pasotti
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit of Lumezzane Institute, Italy
| | - Sofia Guerrini
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit of Lumezzane Institute, Italy
| | - Simonetta Scalvini
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit of Lumezzane Institute, Italy
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Paneroni M, Vitacca M, Bernocchi P, Bertacchini L, Scalvini S. Feasibility of tele-rehabilitation in survivors of COVID-19 pneumonia. Pulmonology 2021; 28:152-154. [PMID: 33893061 PMCID: PMC8045455 DOI: 10.1016/j.pulmoe.2021.03.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/26/2021] [Accepted: 03/27/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- M Paneroni
- Istituti Clinici Scientifici Maugeri IRCCS, Respiratory Rehabilitation of the Institute of Lumezzane, Brescia, Italy.
| | - M Vitacca
- Istituti Clinici Scientifici Maugeri IRCCS, Respiratory Rehabilitation of the Institute of Lumezzane, Brescia, Italy.
| | - P Bernocchi
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity of Care of the Institute of Lumezzane, Brescia, Italy.
| | - L Bertacchini
- Istituti Clinici Scientifici Maugeri IRCCS, Respiratory Rehabilitation of the Institute of Lumezzane, Brescia, Italy.
| | - S Scalvini
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity of Care of the Institute of Lumezzane, Brescia, Italy; Istituti Clinici Scientifici Maugeri IRCCS, Cardiac Rehabilitation of the Institute of Lumezzane, Brescia, Italy.
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Scalvini S, Bernocchi P, Villa S, Paganoni AM, La Rovere MT, Frigerio M. Treatment prescription, adherence, and persistence after the first hospitalization for heart failure: A population-based retrospective study on 100785 patients. Int J Cardiol 2021; 330:106-111. [PMID: 33582198 DOI: 10.1016/j.ijcard.2021.02.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND This study evaluates, in a real-world setting, to what extent the recommended therapies by international guidelines, are prescribed after a first hospitalization for heart failure (HF), and to analyse adherence and persistence, and the effect of treatment adherence on mortality and re-hospitalization. METHODS From the Lombardy healthcare administrative database, we analysed patients discharged after their incident HF, from 2000 to 2012. Adherence was defined as the proportion of days covered (PDC) ≥80% adjusted for hospitalizations and persistence as the absence of discontinuation of therapy for >30 days. A logit model was used to determine the effect of patients' adherence on mortality and readmissions. RESULTS Of 100422 HF patients (52% males, age 75 ± 12 years), 86846 (87%) had a prescription for angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers (ACE/ARBs), 64135 (64%) for beta-blockers (BB), and 36893 (37%) for mineralocorticoid receptor antagonists (MRAs), as mono-, bi- or tri-therapy. In patients on monotherapy, PDC was 78 ± 22% for ACE/ARBs, 69 ± 29% for BB and 54 ± 29% for MRAs; in those on bi-therapy, PDC was 63 ± 31% for ACEI/ARBs+BB, 41 ± 29% for ACEI/ARBs+MRAs, and 40 ± 26% for MRAs+BB; for patients on tri-therapy, PDC was 42 ± 28%. Medication persistence was present in 47% of patients treated with ACEI/ARBs, in 35% of patients treated with BB and in 14% of patients treated with MRAs. Re-hospitalizations and in mortality were significantly reduced in adherent patients (p < 0.000). CONCLUSIONS Polypharmacy is associated with an increased rate of non-adherence and non-persistence in incident HF. Non-adherence is associated with an increased risk of mortality and re-hospitalizations.
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Affiliation(s)
- Simonetta Scalvini
- Istituti Clinici Scientifici Maugeri IRCCS, Cardiology Rehabilitation Department and Continuity Care Unit, Institute of Lumezzane (Brescia), Italy; Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit, Institute of Lumezzane (Brescia), Italy.
| | - Palmira Bernocchi
- Istituti Clinici Scientifici Maugeri IRCCS, Continuity Care Unit, Institute of Lumezzane (Brescia), Italy
| | - Stefania Villa
- MOX - Department of Mathematics, Politecnico di Milano, Milan, Italy
| | | | - Maria Teresa La Rovere
- Istituti Clinici Scientifici Maugeri IRCCS, Cardiology Rehabilitation Department, Institute of Montescano (Pavia), Italy
| | - Maria Frigerio
- De Gasperis Cardiocenter, Niguarda-Ca'Granda Hospital, Milan, Italy
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Scalvini S, Comini L, Bernocchi P. How can multidisciplinary management with remote monitoring improve the outcome of patients with chronic cardiac diseases? Expert Rev Med Devices 2020; 17:153-157. [DOI: 10.1080/17434440.2020.1720510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Simonetta Scalvini
- Istituti Clinici Scientifici Maugeri IRCCS, Care Continuity Unit and Telemedicine Service, Lumezzane, Italy
| | - Laura Comini
- Istituti Clinici Scientifici Maugeri IRCCS, Scientific Direction of the Institute of Lumezzane, Lumezzane, Italy
| | - Palmira Bernocchi
- Istituti Clinici Scientifici Maugeri IRCCS, Care Continuity Unit and Telemedicine Service, Lumezzane, Italy
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11
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Scalvini S, Bernocchi P, Paganoni AM, Frigerio M. P1660Therapy treatment, adherence and persistence in chronic heart failure patients: a populaion study, from 2005 to TO 2012 in Lombardy. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The treatment with angiotensin-converting enzyme inhibitor (ACEI) or angiotensin receptor II blocker (ARB), beta blocker (BB), and aldosterone antagonist (AA), adherence and persistence to therapies, improve clinical status, prevent hospital admission and reduce mortality in patients with chronic heart failure (CHF).
Purpose
To analyze adherence and persistence to indicated therapies.
Methods
We analyzed, from the Lombardy healthcare system administrative database, the discharge forms of patients with HF-related diagnosis, recorded from 2000 to 2012. We evaluated the adherence using the proportion of days covered (PDC≥80%) method, adjusted for hospitalisations. Medication persistence was identified as a duration of time from initiation to discontinuation of therapy. Patient was considered non-persistent if does non-refill medication within a period of 30 days.
Results
We considered 100,784 HF patients, mean (SD) age 74.54 (11.73) years: of them 636 patients were lost from database, 71,166 were alive (71.06%) and 28,982 did not survive (28.94%) at the end of the study. The mean (SD) number of hospitalizations were 2.16 (1.48) per patient (217,422 in total) and drug prescriptions were 12.28 (7.56) per patient (1,237.784 in total). 77% of patients were treated with ACEI/ARB, 64% with BB and 37% with AA. In the table, we reported the results on adherence and persistence measures.
Prescribed Therapy Total pts, No (%) Days covered, mean (SD) Adherent pts, No (%) Persistent pts, No (%) PDC (%), mean (SD) ACEI/ARB+BB+AA 20,831 (21%) 148 (102) 2,649 (13%) 2,068 (10%) 41 (28) ACEI/ARB+BB 33,617 (33%) 237 (110) 14,528 (43%) 11,165 (33%) 65 (30) ACEI/ARB+AA 9,327 (9%) 157 (107) 1,469 (16%) 1,149 (12%) 43 (29) AA+BB 3,070 (3%) 166 (105) 518 (17%) 386 (13%) 45 (29) ACEI/ARB 23,398 (23%) 270 (103) 13,487 (58%) 10,882 (47%) 74 (28) BB 6,806 (7%) 259 (105) 3,567 (52%) 2,782 (41%) 71 (29) AA 3,735 (4%) 204 (113) 1,133 (30%) 922 (25%) 56 (31) pts, patients.
Conclusions
Findings of this database analysis suggests that while treatment with ACEI/ARB and BB is in line of European Guideline, treatment with AA is very low. Despite recommendations, treatment with a combination of two or three HF drug classes decreases further. Adherence and persistence were moderate across all HF therapies of interest, although around 70% for ACEIs, BBs alone and in combination. This analysis evidences the need to understand the reasons for a limited use of the therapeutic guidelines and the need for much more work to improve adherence and persistence to therapy in CHF patients.
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Affiliation(s)
| | | | - A M Paganoni
- Politecnico di Milano, Department of Mathematics, Milan, Italy
| | - M Frigerio
- Niguarda Ca' Granda Hospital, De Gasperis Cardiocenter, Milan, Italy
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12
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Bernocchi P, Giordano A, Pintavalle G, Galli T, Ballini Spoglia E, Baratti D, Scalvini S. Feasibility and Clinical Efficacy of a Multidisciplinary Home-Telehealth Program to Prevent Falls in Older Adults: A Randomized Controlled Trial. J Am Med Dir Assoc 2019; 20:340-346. [DOI: 10.1016/j.jamda.2018.09.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/30/2018] [Accepted: 09/04/2018] [Indexed: 11/30/2022]
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Bernocchi P, Vitacca M, La Rovere MT, Volterrani M, Galli T, Baratti D, Paneroni M, Campolongo G, Sposato B, Scalvini S. Home-based telerehabilitation in older patients with chronic obstructive pulmonary disease and heart failure: a randomised controlled trial. Age Ageing 2018; 47:82-88. [PMID: 28985325 DOI: 10.1093/ageing/afx146] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 07/31/2017] [Indexed: 12/30/2022] Open
Abstract
Background chronic obstructive pulmonary disease (COPD) and chronic heart failure (CHF) frequently coexist in older people, reducing patients' quality of life (QoL) and increasing morbidity and mortality. Objective we studied the feasibility and efficacy of an integrated telerehabilitation home-based programme (Telereab-HBP), 4 months long, in patients with combined COPD and CHF. The primary outcome was exercise tolerance evaluated at the 6-min walk test (6MWT). Secondary outcomes were time-to-event (hospitalisation and death), dyspnoea (MRC), physical activity profile (PASE), disability (Barthel) and QoL (MLHFQ and CAT). Study design randomised, open, controlled, multicenter trial. Methods the Telereab-HBP included remote monitoring of cardiorespiratory parameters, weekly phone-calls by the nurse, and exercise programme, monitored weekly by the physiotherapist. All outcomes were studied again after 2 months of a no-intervention period. Results in total, 112 patients were randomised, 56 per group. Their mean (SD) age was 70 (9) years, and 92 (82.1%) were male. After 4 months, the IG were able to walk further than at baseline: mean (95% CI) Δ6MWT was 60 (22.2,97.8) m; the CG showed no significant improvement: -15 (-40.3,9.8) m; P = 0.0040 between groups. In IG, the media time to hospitalisation/death was 113.4 days compared with 104.7 in the CG (P = 0.0484, log-rank test). Other secondary outcomes: MRC (P = 0.0500), PASE (P = 0.0015), Barthel (P = 0.0006), MLHFQ (P = 0.0007) and CAT (P = 0.0000) were significantly improved in the IG compared with the CG at 4 months. IG maintained the benefits acquired at 6 months for outcomes. Conclusions this 4-month Telereab-HBP was feasible and effective in older patients with combined COPD and CHF.
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Affiliation(s)
- Palmira Bernocchi
- Care Continuity Unit and Telemedicine Service, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane, Brescia, Italy
| | - Michele Vitacca
- Respiratory Rehabilitation Division, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane, Brescia, Italy
| | - Maria Teresa La Rovere
- Cardiac Rehabilitation Division, Istituti Clinici Scientifici Maugeri IRCCS, Montescano, Pavia,
Italy
| | | | - Tiziana Galli
- Respiratory Rehabilitation Division, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane, Brescia, Italy
| | - Doriana Baratti
- Care Continuity Unit and Telemedicine Service, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane, Brescia, Italy
| | - Mara Paneroni
- Respiratory Rehabilitation Division, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane, Brescia, Italy
| | | | - Barbara Sposato
- Cardiology Department, San Raffaele Pisana IRCCS, Roma, Italy
| | - Simonetta Scalvini
- Care Continuity Unit and Telemedicine Service, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane, Brescia, Italy
- Cardiac Rehabilitation Division, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane, Brescia, Italy
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Bernocchi P, Mulè C, Vanoglio F, Taveggia G, Luisa A, Scalvini S. Home-based hand rehabilitation with a robotic glove in hemiplegic patients after stroke: a pilot feasibility study. Top Stroke Rehabil 2017; 25:114-119. [PMID: 29037114 DOI: 10.1080/10749357.2017.1389021] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To evaluate the feasibility and safety of home rehabilitation of the hand using a robotic glove, and, in addition, its effectiveness, in hemiplegic patients after stroke. METHODS In this non-randomized pilot study, 21 hemiplegic stroke patients (Ashworth spasticity index ≤ 3) were prescribed, after in-hospital rehabilitation, a 2-month home-program of intensive hand training using the Gloreha Lite glove that provides computer-controlled passive mobilization of the fingers. Feasibility was measured by: number of patients who completed the home-program, minutes of exercise and number of sessions/patient performed. Safety was assessed by: hand pain with a visual analog scale (VAS), Ashworth spasticity index for finger flexors, opponents of the thumb and wrist flexors, and hand edema (circumference of forearm, wrist and fingers), measured at start (T0) and end (T1) of rehabilitation. Hand motor function (Motricity Index, MI), fine manual dexterity (Nine Hole Peg Test, NHPT) and strength (Grip test) were also measured at T0 and T1. RESULTS Patients performed, over a mean period 56 (49-63) days, a total of 1699 (1353-2045) min/patient of exercise with Gloreha Lite, 5.1 (4.3-5.8) days/week. Seventeen patients (81%) completed the full program. The mean VAS score of hand pain, Ashworth spasticity index and hand edema did not change significantly at T1 compared to T0. The MI, NHPT and Grip test improved significantly (p = 0.0020, 0.0156 and 0.0024, respectively) compared to baseline. CONCLUSION Gloreha Lite is feasible and safe for use in home rehabilitation. The efficacy data show a therapeutic effect which need to be confirmed by a randomized controlled study.
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Affiliation(s)
- Palmira Bernocchi
- a Care Continuity Unit , ICS Maugeri IRCCS, Institute of Lumezzane , Brescia , Italy
| | - Chiara Mulè
- b Fondazione Poliambulanza-Istituto Ospedaliero , Brescia , Italy.,d Habilita Hospital , Sarnico , Italy
| | - Fabio Vanoglio
- c Neurological Rehabilitation Unit , ICS Maugeri IRCCS, Institute of Lumezzane , Brescia , Italy
| | | | - Alberto Luisa
- c Neurological Rehabilitation Unit , ICS Maugeri IRCCS, Institute of Lumezzane , Brescia , Italy
| | - Simonetta Scalvini
- a Care Continuity Unit , ICS Maugeri IRCCS, Institute of Lumezzane , Brescia , Italy
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15
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Vitacca M, Barbano L, Vanoglio F, Luisa A, Bernocchi P, Giordano A, Paneroni M. Does 6-Month Home Caregiver-Supervised Physiotherapy Improve Post-Critical Care Outcomes?: A Randomized Controlled Trial. Am J Phys Med Rehabil 2017; 95:571-9. [PMID: 26829083 DOI: 10.1097/phm.0000000000000441] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE This study aims to determine whether a 6-month home physiotherapy program can improve outcomes in critical care survivors. DESIGN Forty-eight consecutive patients were randomized. The treatment group underwent 2 sessions/day of breathing retraining and bronchial hygiene, physical activity (mobilization, sit-to-stand gait, limb strengthening), and exercise re-conditioning whereas controls underwent standard care. Maximum inspiratory/expiratory pressures (MIP/MEP), forced volumes, blood gases, dyspnea, respiratory rate, disability, peripheral force measurements, perceived health status (Euroquol-5D), patient adherence/satisfaction, safety, and costs were assessed. RESULTS Outcomes of treatment versus controls: MIP 14 ± 17 vs. -0.2 ± 14 cm H2O, MEP 27 ± 27 vs. 6 ± 21 cm H2O both P < 0.03; in addition, quality of life (Euroquol-5D) (P = 0.04), FEV1 (P = 0.03), dyspnea (P = 0.002), and respiratory rate (P = 0.009) were significantly improved for treated cardiorespiratory patients only. Eighty-three percent of the treated patients were decannulated versus 14% of controls (P = 0.01). Compliance was high (74 ± 25%) and there were no side effects. The majority (87.4%) expressed satisfaction with the program. Treatment cost was 459&OV0556;/patient/month. CONCLUSIONS Carrying over regular bronchial hygiene techniques, physical activity, and exercise into the home after long critical care stays is safe and has a beneficial effect on respiratory muscles, decannulation, pulmonary function, and quality of life.
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Affiliation(s)
- Michele Vitacca
- From the Divisione di Pneumologia Riabilitativa (MV, LB, MP), Neurologia Riabilitativa (FV, AL), Servizio di Continuità Assistenziale Ospedaliera (PB), and Cardiologia Riabilitativa (AG), Fondazione Salvatore Maugeri, IRCCS Lumezzane, Brescia, Italy
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16
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Scalvini S, Bernocchi P, Zanelli E, Comini L, Vitacca M. Maugeri Centre for Telehealth and Telecare: A real-life integrated experience in chronic patients. J Telemed Telecare 2017; 24:500-507. [PMID: 28537509 DOI: 10.1177/1357633x17710827] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Management of chronic diseases in a progressively aging population is a major issue in western industrialized countries and telehealth is one way to ensure the continuity of care in chronic illness. We describe here our personal experience in a telehealth and telecare centre in Italy. Between January 2000 and December 2015, 1635 elderly patients (71% male) with one or more comorbidities have undergone a telehealth program tailored to their specific disease: chronic obstructive pulmonary disease (COPD)/chronic respiratory insufficiency; amyotrophic lateral sclerosis/neuromuscular diseases; chronic heart failure (CHF); post-stroke; and post-cardiac surgery patients discharged from hospital after an acute event. COPD and CHF represent the majority of patients treated (accounting for 80%). Interventions performed by the nurse tutor account for 39-82% of all activities in the five different programs. Specialist second opinion represents 12-27% of the health staff activities. Previously reported results show a reduction of the re-hospitalization rate and costs, and increase in quality of life and patient satisfaction with the service. A multidisciplinary telehealth and telecare integrated approach can provide efficient management for the growing number of complex patients.
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Affiliation(s)
- Simonetta Scalvini
- 1 Care Continuity Unit and Telemedicine Service, Istituti Clinici Scientifici Maugeri, IRCCS Lumezzane (Brescia), Italy.,2 Cardiology Rehabilitation Division, Istituti Clinici Scientifici Maugeri, IRCCS Lumezzane (Brescia), Italy
| | - Palmira Bernocchi
- 1 Care Continuity Unit and Telemedicine Service, Istituti Clinici Scientifici Maugeri, IRCCS Lumezzane (Brescia), Italy
| | - Emanuela Zanelli
- 2 Cardiology Rehabilitation Division, Istituti Clinici Scientifici Maugeri, IRCCS Lumezzane (Brescia), Italy
| | - Laura Comini
- 3 Health Directorate, Istituti Clinici Scientifici Maugeri, IRCCS Lumezzane (Brescia), Italy
| | - Michele Vitacca
- 4 Respiratory Rehabilitation Division, Istituti Clinici Scientifici Maugeri, IRCCS Lumezzane (Brescia), Italy
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Giordano A, Bonometti GP, Vanoglio F, Paneroni M, Bernocchi P, Comini L, Giordano A. Feasibility and cost-effectiveness of a multidisciplinary home-telehealth intervention programme to reduce falls among elderly discharged from hospital: study protocol for a randomized controlled trial. BMC Geriatr 2016; 16:209. [PMID: 27923343 PMCID: PMC5142145 DOI: 10.1186/s12877-016-0378-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 11/25/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Fall incidents are the third cause of chronic disablement in elderly according to the World Health Organization (WHO). Recent meta-analyses shows that a multifactorial falls risk assessment and management programmes are effective in all older population studied. However, the application of these programmes may not be the same in all National health care setting and, consequently, needs to be evaluated by cost-effectiveness studies before to plan this intervention in regular care. In Italy structured collaboration between hospital staff and primary care is generally lacking and the role of Information and Communication Technologies (ICT) in a fall prevention programme at home has never been explored. METHODS AND DESIGN This will be a two-group randomised controlled trial aiming to evaluate the effects of a home-based intervention programme delivered by a multidisciplinary health team. The home tele-management programme, previously adopted in our Institute for chronic patients, will be proposed to elderly people affected by chronic diseases at high risk of falling at hospital discharge. The programme will involve the hospital staff and will be managed thanks to the collaboration between hospital and primary care setting. Patients will be followed for 6 months after hospital discharge. A nurse-tutor telephone support and tele-exercise will characterize the intervention programme. People in the control group will receive usual care. The main outcome measure of the study will be the percentage of patients sustaining a fall during the 6-months follow-up period. An economic evaluation will be performed from a societal perspective and will involve calculating cost-effectiveness and cost utility ratios. DISCUSSION To date, no adequately powered studies have investigated the effect of the Information and Communication Technologies (ICT) in a home fall prevention program. We aim the program will be feasible in terms of intensity and characteristics, but particularly in terms of patient and provider compliance. The results of the economic evaluation could provide information about the cost-effectiveness of the intervention and the effects on quality of life. In case of shown effectiveness and cost effectiveness, the program could be implemented into health services settings. TRIAL REGISTRATION ClinicalTrials.gov ( NCT02487589 ).
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Affiliation(s)
- Alessandro Giordano
- Operative Unit for Recovery and Functional Rehabilitation, Salvatore Maugeri Foundation IRCCS, Institute of Lumezzane (Brescia), Via Giuseppe Mazzini, 129, 25065, Lumezzane (Brescia), Italy.
| | - Gian Pietro Bonometti
- Operative Unit for Recovery and Functional Rehabilitation, Salvatore Maugeri Foundation IRCCS, Institute of Lumezzane (Brescia), Via Giuseppe Mazzini, 129, 25065, Lumezzane (Brescia), Italy
| | - Fabio Vanoglio
- Neurological Rehabilitation, Salvatore Maugeri Foundation IRCCS, Institute of Lumezzane (Brescia), Brescia, Italy
| | - Mara Paneroni
- Cardiac Rehabilitation Division, Salvatore Maugeri Foundation IRCCS, Institute of Lumezzane (Brescia), Brescia, Italy
| | - Palmira Bernocchi
- Telemedicine Service, Salvatore Maugeri Foundation IRCCS, Institute of Lumezzane (Brescia), Brescia, Italy
| | - Laura Comini
- Health Directorate, Salvatore Maugeri Foundation IRCCS, Institute of Lumezzane (Brescia), Brescia, Italy
| | - Amerigo Giordano
- Cardiac Rehabilitation Division, Salvatore Maugeri Foundation IRCCS, Institute of Lumezzane (Brescia), Brescia, Italy
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Bernocchi P, Scalvini S, Galli T, Paneroni M, Baratti D, Turla O, La Rovere MT, Volterrani M, Vitacca M. A multidisciplinary telehealth program in patients with combined chronic obstructive pulmonary disease and chronic heart failure: study protocol for a randomized controlled trial. Trials 2016; 17:462. [PMID: 27659741 PMCID: PMC5034626 DOI: 10.1186/s13063-016-1584-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 09/05/2016] [Indexed: 12/20/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) and chronic heart failure (CHF) frequently coexist, significantly reducing patients’ quality of life and increasing morbidity and mortality. For either single disease, a multidisciplinary disease-management approach supported by telecommunication technologies offers the best outcome in terms of prolonged survival and reduced hospital readmissions. However, no data exist in patients with combined COPD/CHF. We planned a randomized controlled trial to investigate the feasibility and efficacy of an integrated, home-based, medical/nursing intervention plus a rehabilitation program versus conventional care in patients with coexisting COPD/CHF. The purpose of the paper is to describe the rationale and design of the trial. Methods/designs Patients, after inpatient rehabilitation, were randomly assigned to the intervention or control group, followed for 4 months at home, then assessed at 4 and 6 months. The intervention group followed a telesurveillance (telephone contacts by nurse and remote monitoring of cardiorespiratory parameters) and home-based rehabilitation program (at least three sessions/week of mini-ergometer exercises, callisthenic exercises and twice weekly pedometer-driven walking, plus telephone contacts by a physiotherapist). Telephone follow-up served to verify compliance to therapy, maintain exercise motivation, educate for early recognition of signs/symptoms, and verify the skills acquired. At baseline and 4 and 6 months, the 6-min Walk Test, dyspnea and fatigue at rest, oxygenation (PaO2/FiO2), physical activity profile (PASE questionnaire), and QoL (Minnesota and CAT questionnaires) were assessed. During the study, serious clinical events (hospitalizations or deaths) were recorded. Discussion Currently, no studies have assessed the impact of a telehealth program in patients with combined COPD and CHF. Our study will show whether this approach is effective in the management of such complex, frail patients who are at very high risk of exacerbations. Trial registration Network per la prevenzione e la sanità pubblica, CCM, Ministero della Salute “Modelli innovativi di gestione integrata telegestita ospedale-territorio del malato cronico a fenotipo complesso: studio di implementazione, validazione e impatto,” registered on 14 January 2014. ClinicalTrials.gov Identifier: NCT02269618, registered on 17 October 2014. Electronic supplementary material The online version of this article (doi:10.1186/s13063-016-1584-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Palmira Bernocchi
- Continuity Care Unit and Telemedicine Service, Fondazione Salvatore Maugeri IRCCS, Via G Mazzini 129, 25065, Lumezzane, BS, Italy.
| | - Simonetta Scalvini
- Continuity Care Unit and Telemedicine Service, Fondazione Salvatore Maugeri IRCCS, Via G Mazzini 129, 25065, Lumezzane, BS, Italy.,Cardiac Rehabilitation Division, Fondazione Salvatore MaugeriI RCCS, Lumezzane, Brescia, Italy
| | - Tiziana Galli
- Respiratory Rehabilitation Division, Fondazione Salvatore Maugeri IRCCS, Lumezzane, Brescia, Italy
| | - Mara Paneroni
- Respiratory Rehabilitation Division, Fondazione Salvatore Maugeri IRCCS, Lumezzane, Brescia, Italy
| | - Doriana Baratti
- Continuity Care Unit and Telemedicine Service, Fondazione Salvatore Maugeri IRCCS, Via G Mazzini 129, 25065, Lumezzane, BS, Italy
| | - Ottavia Turla
- Respiratory Rehabilitation Division, Fondazione Salvatore Maugeri IRCCS, Lumezzane, Brescia, Italy
| | - Maria Teresa La Rovere
- Cardiac Rehabilitation Division, Fondazione Salvatore Maugeri IRCCS, Montescano, Pavia, Italy
| | | | - Michele Vitacca
- Respiratory Rehabilitation Division, Fondazione Salvatore Maugeri IRCCS, Lumezzane, Brescia, Italy
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Vanoglio F, Bernocchi P, Mulè C, Garofali F, Mora C, Taveggia G, Scalvini S, Luisa A. Feasibility and efficacy of a robotic device for hand rehabilitation in hemiplegic stroke patients: a randomized pilot controlled study. Clin Rehabil 2016; 31:351-360. [PMID: 27056250 DOI: 10.1177/0269215516642606] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The purpose of the study was to evaluate the feasibility and efficacy of robot-assisted hand rehabilitation in improving arm function abilities in sub-acute hemiplegic patients. DESIGN Randomized controlled pilot study. SETTING Inpatient rehabilitation centers. PARTICIPANTS Thirty hemiplegic stroke patients (Ashworth spasticity index <3) were recruited and randomly divided into a Treatment group (TG) and Control group (CG). INTERVENTIONS Patients in the TG received intensive hand training with Gloreha, a hand rehabilitation glove that provides computer-controlled, repetitive, passive mobilization of the fingers, with multisensory feedback. Patients in the CG received the same amount of time in terms of conventional hand rehabilitation. MAIN OUTCOME MEASURES Hand motor function (Motricity Index, MI), fine manual dexterity (Nine Hole Peg Test, NHPT) and strength (Grip and Pinch test) were measured at baseline and after rehabilitation, and the differences, (Δ) mean(standard deviation), compared between groups. Results Twenty-seven patients concluded the program: 14 in the TG and 13 in the CG. None of the patients refused the device and only one adverse event of rheumatoid arthritis reactivation was reported. Baseline data did not differ significantly between the two groups. In TG, ΔMI 23(16.4), ΔNHPT 0.16(0.16), ΔGRIP 0.27(0.23) and ΔPINCH 0.07(0.07) were significantly greater than in CG, ΔMI 5.2(9.2), ΔNHPT 0.02(0.07), ΔGRIP 0.03(0.06) and ΔPINCH 0.02(0.03)] ( p=0.002, p=0.009, p=0.003 and p=0.038, respectively). CONCLUSIONS Gloreha Professional is feasible and effective in recovering fine manual dexterity and strength and reducing arm disability in sub-acute hemiplegic patients.
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Affiliation(s)
- Fabio Vanoglio
- 1 Neurological Rehabilitation Unit, Fondazione Salvatore Maugeri, IRCCS, Institute of Lumezzane, Brescia, Italy
| | - Palmira Bernocchi
- 2 Care Continuity Unit, Fondazione Salvatore Maugeri, IRCCS, Institute of Lumezzane, Brescia, Italy
| | - Chiara Mulè
- 3 Habilita Hospital, Sarnico, Bergamo, Italy
| | - Francesca Garofali
- 1 Neurological Rehabilitation Unit, Fondazione Salvatore Maugeri, IRCCS, Institute of Lumezzane, Brescia, Italy
| | - Chiara Mora
- 1 Neurological Rehabilitation Unit, Fondazione Salvatore Maugeri, IRCCS, Institute of Lumezzane, Brescia, Italy
| | | | - Simonetta Scalvini
- 2 Care Continuity Unit, Fondazione Salvatore Maugeri, IRCCS, Institute of Lumezzane, Brescia, Italy
| | - Alberto Luisa
- 1 Neurological Rehabilitation Unit, Fondazione Salvatore Maugeri, IRCCS, Institute of Lumezzane, Brescia, Italy
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Bernocchi P, Vanoglio F, Baratti D, Morini R, Rocchi S, Luisa A, Scalvini S. Home-based telesurveillance and rehabilitation after stroke: a real-life study. Top Stroke Rehabil 2016; 23:106-15. [PMID: 27078116 DOI: 10.1080/10749357.2015.1120453] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND After discharge from in-hospital rehabilitation, post-stroke patients should have the opportunity to continue the rehabilitation through structured programs to maintain the benefits acquired during intensive rehabilitation treatment. OBJECTIVE The primary objective was to evaluate the feasibility of implementing an home-based telesurveillance and rehabilitation (HBTR) program to optimize the patient's recovery by reducing dependency degree. METHOD Post-stroke patients were consecutively screened. Data were expressed as mean ± standard deviation (SD). 26 patients enrolled: 15 were sub-acute (time since stroke: 112 ± 39 days) and 11 were chronic (time since stroke: 470 ± 145 days). For 3 months patients were followed at home by a nurse-tutor, who provided structured phone support and vital signs telemonitoring, and by a physiotherapist (PT) who monitored rehabilitation sessions by videoconferencing. RESULTS 23 patients completed the program; 16.7 ± 5.2 phone contacts/patient were initiated by the nurse and 0.9 ± 1.8 by the patients. Eight episodes of atrial fibrillation that required a change in therapy were recorded in two patients. Physiotherapists performed 1.2 ± 0.4 home visits, 1.6 ± 0.9 phone calls and 4.5 ± 2.8 videoconference-sessions per patient. At least three sessions/week of home exercises were performed by 31% of patients, two sessions by 54%. At the end of the program, global functional capacity improved significantly (P < 0.001), in particular, static (P < 0.001) and dynamic (P = 0.0004) postural balance, upper limb dexterity of the paretic side (P = 0.01), and physical performance (P = 0.002). Symptoms of depression and caregiver strain also improved. CONCLUSION The home-based program was feasible and effective in both sub-acute and chronic post-stroke patients, improving their recovery, and maintaining the benefits reached during inpatient rehabilitation.
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Affiliation(s)
- Palmira Bernocchi
- a Telemedicine Service , Fondazione Salvatore Maugeri, IRCCS, Lumezzaxsrne , Brescia , Italy
| | - Fabio Vanoglio
- b Neurological Rehabilitation Department , Fondazione Salvatore Maugeri, IRCCS , Lumezzaxsrne, Brescia , Italy
| | - Doriana Baratti
- a Telemedicine Service , Fondazione Salvatore Maugeri, IRCCS, Lumezzaxsrne , Brescia , Italy
| | - Roberta Morini
- b Neurological Rehabilitation Department , Fondazione Salvatore Maugeri, IRCCS , Lumezzaxsrne, Brescia , Italy
| | - Silvana Rocchi
- c Psychological Service , Fondazione Salvatore Maugeri, IRCCS , Lumezzane, Brescia , Italy
| | - Alberto Luisa
- b Neurological Rehabilitation Department , Fondazione Salvatore Maugeri, IRCCS , Lumezzaxsrne, Brescia , Italy
| | - Simonetta Scalvini
- a Telemedicine Service , Fondazione Salvatore Maugeri, IRCCS, Lumezzaxsrne , Brescia , Italy
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Bernocchi P, Scalvini S, Bertacchini F, Rivadossi F, Muiesan ML. Home based telemedicine intervention for patients with uncontrolled hypertension--a real life non-randomized study. BMC Med Inform Decis Mak 2014; 14:52. [PMID: 24920046 PMCID: PMC4066708 DOI: 10.1186/1472-6947-14-52] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 05/28/2014] [Indexed: 12/22/2022] Open
Abstract
Background Control of blood pressure is frequently inadequate in spite of availability of several classes of well tolerated and effective antihypertensive drugs. Several factors, including the use of suboptimal doses of drugs, inadequate or ineffective treatments and poor drug compliance may be the reason for this phenomenon. The aim of the current non- randomized study was to evaluate the effectiveness of a Home-Based Telemedicine service in patients with uncontrolled hypertension. Methods 74 patients were enrolled in a Home Based Telemedicine group and 94 patients in the Usual Care group. At baseline and at the end of the study, patients in both groups were seen in a cardiology office. Patients in Home Based Telemedicine group additionally were followed by a physician-nurse, through scheduled and unscheduled telephone appointments. These patients also received a blood pressure measuring device that could transmit the readings to a central data monitor via secure data connection. Results During the study period (80 ± 25 days), a total of 17401 blood pressure measurements were taken in the Home Based Telemedicine group corresponding to 236 ± 136 readings per patient and a mean daily measurement of 3 ± 1.7. The scheduled telephone contacts (initiated by the nurse) equaled to 5.2 ± 4.3/patient (370 in total) and the unscheduled telephone contacts (initiated by the patients) were 0.4 ± 0.9/patient (30 in total). The mean systolic blood pressure values decreased from 153 ± 19 mmHg to 130 ± 15 mmHg (p < 0.0001) at the end of the study and diastolic blood pressure values decreased from 89 ± 10 mmHg to 76 ± 11 mmHg (p < 0.0001). In the Usual Care group, the mean systolic blood pressure values decreased from 156 ± 16 mmHg to 149 ± 17 mmHg (p < 0.05) at the end of the study and diastolic blood pressure values decreased from 90 ± 8 mmHg to 86 ± 9 mmHg (p < 0.05). The changes in drug therapy initiated following telephone contacts were 1.81 ± 1.73 per patient. Conclusions The addition of a structured physician-nurse approach supported by remote telemonitoring of blood pressure is likely to improve outcome in patients with uncontrolled hypertension.
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Affiliation(s)
- Palmira Bernocchi
- Fondazione Salvatore Maugeri, IRCCS, Telemedicine Service - Institute of Lumezzane, Brescia, Italy.
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Bernocchi P, Scalvini S, Tridico C, Borghi G, Zanaboni P, Masella C, Glisenti F, Marzegalli M. Healthcare continuity from hospital to territory in Lombardy: TELEMACO project. Am J Manag Care 2012; 18:e101-e108. [PMID: 22435961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVES To verify implementation and use of TELEMACO (TELEMedicina Ai piccoli COmunilombardi; http://www.telemaco.regione.lombardia.it/), which provides specialized continuity of care with innovative healthcare services in remote areas of the Lombardy region of Italy; to design a network in the territory for sharing of continuityof- care programs; and to allow the relevant health authorities to collect cost data to establish a model for sustainable pricing for implementing these services. METHODS TELEMACO provides home-based telemanagement services for patients with chronic heart failure and chronic obstructive pulmonary disease (COPD), as well as second-opinion teleconsultations in cardiology, dermatology, diabetology, and pulmonology for general practitioners and second-opinion teleconsultations on digital images in cases of traumatic brain injury and stroke. A total of 2 service centers, 10 cardiology and pneumology departments, 30 specialists, 176 general practitioners, 40 nurses, 2 emergency departments, and 2 consultant hospitals were involved. RESULTS A total of 166 patients with chronic heart failure and 474 patients with COPD were enrolled. There were 4830, 51, and 44 second-opinion teleconsultations for cardiologic, dermatologic, and diabetic conditions, respectively. There were 147 second-opinion teleconsultations on digital images, 68 for stroke, and 79 for traumatic brain injury. Implementation of TELEMACO introduced innovations in working methods and provided evidence to the health authorities for allocating funds for such services. CONCLUSIONS TELEMACO provided evidence that there is a growing need for home management of patients using telemedicine, a common and efficacious approach that can ensure care continuity, especially in chronic diseases.
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Affiliation(s)
- Palmira Bernocchi
- Fondazione Salvatore Maugeri, IRCCS, Telemedicine Service, Lumezzane (Brescia), Italy.
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Vitacca M, Comini L, Assoni G, Fiorenza D, Gilè S, Bernocchi P, Scalvini S. Tele-assistance in patients with amyotrophic lateral sclerosis: long term activity and costs. Disabil Rehabil Assist Technol 2012; 7:494-500. [DOI: 10.3109/17483107.2011.652999] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Bernocchi P, Baratti D, Zanelli E, Rocchi S, Salvetti M, Paini A, Scalvini S. Six-month programme on lifestyle changes in primary cardiovascular prevention: a telemedicine pilot study. ACTA ACUST UNITED AC 2011; 18:481-7. [PMID: 21450656 DOI: 10.1177/1741826710389364] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Technology and information systems enabling transmission of patients' data and ability to provide and exchange professional support remotely to the general practitioners can improve quality and continuity of care. DESIGN We set up a programme of primary prevention in 27 patients at risk for cardiovascular diseases by using Telemedicine Service for 6 months. METHODS Telemedicine Service enlisted the involvement of physicians and nurse-tutors. The following cardiovascular activity markers were assessed: (i) cardiovascular risk cards (Framingham Study and Progetto CUORE); (ii) blood pressure; (iii) physical activity (three sessions of bicycle exercise training and calisthenic exercises a week); and (iv) questionnaires on stress and quality of life. RESULTS Both cardiovascular risk cards showed a statistically significant reduction of the score (p < 0.05). Systolic and diastolic blood pressures showed a statistically significant reduction (128 ± 10 mmHg vs. 121 ± 9 mmHg, p = 0.04; 80 ± 8 mmHg vs. 73 ± 7 mmHg, p = 0.001). There was a noticeable increase in patient compliance for reporting blood pressure data. 89% of patients complied with the physical activity programme. Effort test significantly increased from 11.4 ± 3.5 to 12.7 ± 3.4 min (p = 0.02). There was a significant improvement in physical health (p = 0.04) and 85% of patients were satisfied with the service. CONCLUSIONS A home multidisciplinary programme for primary cardiovascular disease prevention is simple, efficacious, and very well accepted by the patients with the majority of patients showing reduction in cardiovascular risk scores.
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Affiliation(s)
- Palmira Bernocchi
- Telemedicina Service, Fondazione Salvatore Maugeri, IRCCS, Institute of Lumezzane, Brescia, Italy.
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Zanaboni P, Scalvini S, Bernocchi P, Borghi G, Tridico C, Masella C. Teleconsultation service to improve healthcare in rural areas: acceptance, organizational impact and appropriateness. BMC Health Serv Res 2009; 9:238. [PMID: 20021651 PMCID: PMC2803179 DOI: 10.1186/1472-6963-9-238] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Accepted: 12/18/2009] [Indexed: 11/22/2022] Open
Abstract
Background Nowadays, new organisational strategies should be indentified to improve primary care and its link with secondary care in terms of efficacy and timeliness of interventions thus preventing unnecessary hospital accesses and costs saving for the health system. The purpose of this study is to assess the effects of the use of teleconsultation by general practitioners in rural areas. Methods General practitioners were provided with a teleconsultation service from 2006 to 2008 to obtain a second opinion for cardiac, dermatological and diabetic problems. Access, acceptance, organisational impact, effectiveness and economics data were collected. Clinical and access data were systematically entered in a database while acceptance and organisational data were evaluated through ad hoc questionnaires. Results There were 957 teleconsultation contacts which resulted in access to health care services for 812 symptomatic patients living in 30 rural communities. Through the teleconsultation service, 48 general practitioners improved the appropriateness of primary care and the integration with secondary care. In fact, the level of concordance between intentions and consultations for cardiac problems was equal to 9%, in 86% of the cases the service entailed a saving of resources and in 5% of the cases, it improved the timeliness. 95% of the GPs considered the overall quality positively. For a future routine use of this service, trust in specialists, duration and workload of teleconsultations and reimbursement should be taken into account. Conclusions Managerial and policy implications emerged mainly related to the support to GPs in the provision of high quality primary care and decision-making processes in promoting similar services.
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Affiliation(s)
- Paolo Zanaboni
- Department of Management, Economics and Industrial Engineering, Politecnico di Milano, Milano, Italy.
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Bernocchi P, Comini L, Rocchi S, Bruletti G, Scalvini S. [Can the new technologies of telemedicine applied to health help the caregiver?]. G Ital Med Lav Ergon 2008; 30:B27-B31. [PMID: 19288773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
During the last few years about the chronic patient assistance the tendency is to privilege the home care model, favouring the permanence of the patient in the familiar nucleus. This determines an always greater involvement in term of time and responsibility of the caregiver that is of the person who takes cure of the patient one worrying itself to answer to its physical needs, psychical and social. The burden of the family caregiver is in the consisting majority of the cases rather. The caregiver is therefore, with full rights, the other protagonist of the disease and it must be necessarily integrated in the assistance plan. The increase of the age associated to an increase of the prevalence of chronic pathologies, determines the necessity to plan new interventions on the territory. In chronic patients alternative assistance models, using telemedicine, seem to be effectives improving both clinical aspects and quality of the life. A new area of interest is delineated therefore that, through the new technologies of the ICT must define been involved the single roles of the operating ones in the participation program. The telemedicine seems to be a useful instrument in order to support patient and caregiver in facing the disease and reducing stress. In our model of domiciliary telesurveillance the patient, the caregiver, the family and all the sanitary figures are been involved. This model integrating the service dedicated to chronic pathology with telepsychology at home seems to give good result even if ulterior studies, above all in the long term, are need.
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Affiliation(s)
- P Bernocchi
- Servizio Autonomo di Telemedicina, IRCCS Fondazione Salvatore Maugeri, Lumezzane, BS, Italy
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Ferrari R, Papa K, Bernocchi P, Gimbatti OJ, Golcea SS, Bettini A, Ceconi C. [Angiotensin-converting enzyme inhibitors in patients with preserved left ventricular function: from EUROPA to PREAMI]. Ital Heart J 2005; 6 Suppl 7:24S-32S. [PMID: 16485514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The trials with angiotensin-converting enzyme (ACE) inhibitors have followed a particular trend: in the first studies treatment was provided to severely ill patients several time (months or year) after the acute event. Thereafter, in few studies ACE-inhibitors were provided within 2 weeks of the event to patients with left ventricular dysfunction after acute myocardial infarction (AMI). In other megatrials ACE-inhibitors were started in unselected patients 24 hours after AMI. Thus, the trend is to provide treatment as early as possible to less selected patients. Recently, ACE-inhibitors have been successfully tested not only to treat the consequences of an infarct, but also to prevent its occurrence. EUROPA is the trial that demonstrated that perindopril (8 mg/day) is indicated in all coronary artery disease patients to reduce cardiovascular mortality and occurrence of AMI. The Perindopril and Remodelling in the Elderly with Acute Myocardial Infarction (PREAMI) is another trial recently terminated in elderly post-AMI patients with preserved left ventricular function. Although not associated with better clinical outcomes (most likely because of the rather short treatment period, 1 year), perindopril significantly reduced the combined primary endpoint (death, hospitalization for heart failure and remodeling) and prevented the progressive left ventricular remodeling occurring in elderly patients even in the presence of small infarct size.
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Comini L, Boraso A, Bachetti T, Bernocchi P, Pasini E, Bastianon D, Curello S, Terracciano CM, Ceconi C, Ferrari R. Effects of endotoxic shock on neuronal NOS and calcium transients in rat cardiac myocytes. Pharmacol Res 2005; 51:409-17. [PMID: 15749455 DOI: 10.1016/j.phrs.2004.11.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/05/2004] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The effects of endotoxic shock on transcriptional and translational pattern of nitric oxide synthase isoforms (NOSs) and cytoplasmic calcium were investigated. METHODS Male SD rats injected with lipopolysaccharides or saline were sacrificed after 6 and 20 h. Cardiac myocytes were enzimatically isolated from the excised hearts and evaluated for: (1) expression of constitutive (e and n) and inducible (i) NOSs by RT-PCR; (2) NOSs protein levels by Western blot, enzymatic activities by a radioimmunometric assay and nitric oxide metabolites by spectrophotometry; (3) calcium transients by Indo-1 fluorescence. RESULTS Increase in iNOS mRNA, and decrease in e and nNOS mRNAs were observed in cardiac myocytes isolated 6h after LPS injection with recovery to basal levels at 20 h. Significant down-regulation of e and nNOS protein levels (p < 0.01) and calcium-dependent activity (p < 0.05) were detected at 20 h. Serum TNF-alpha increased after 6 and 20 h (p < 0.05), whereas NO metabolites rose only after 20 h (p < 0.0001). The diastolic calcium increased 6 h from LPS injection (p < 0.0001) and remained significantly higher after 20 h. Calcium transients amplitude was not affected by LPS injection. CONCLUSIONS Endotoxic shock stimulates iNOS and down-regulates expression of nNOS in purified cardiac myocytes, but endogenous NO production does not likely affect calcium transients.
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Affiliation(s)
- Laura Comini
- Fondazione Salvatore Maugeri IRCCS, Center of Cardiovascular Pathophysiology, Via Pinidolo 23, 25064 Gussago, Brescia, Italy.
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Bernocchi P, Cargnoni A, Vescovo G, Dalla Libera L, Parrinello G, Boraso A, Ceconi C, Ferrari R. Skeletal muscle abnormalities in rats with experimentally induced heart hypertrophy and failure. Basic Res Cardiol 2003; 98:114-23. [PMID: 12607133 DOI: 10.1007/s003950300001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND In congestive heart failure (CHF), function and metabolism of skeletal muscles are abnormal. AIM To evaluate whether the reduced oxidative capacity of skeletal muscles in CHF is due to impaired O(2) utilisation. METHODS CHF was induced in rats by injecting 50 mg/Kg monocrotaline. Several animals received the same dose of monocrotaline but only compensated right ventricular hypertrophy and no sign of congestion resulted. Two age- and diet-matched groups of control animals were also studied. In soleus and extensor digitorum longus (EDL) muscles, we studied skeletal muscle blood flow, oxidative capacity and respiratory function of skinned muscle fibres. RESULTS In CHF, we observed a decrease of muscle blood flow (statistically significant in the soleus, p < 0.05 vs. controls). In compensated rats, a similar trend in blood flow was observed. In both soleus and EDL, a significant reduction of high energy phosphate and a shift of the redox potential towards accumulation of reducing equivalents were observed. The reduction of energy charge was not correlated to the decrease of blood flow. In skinned myofibres, the ratio of O(2) utilised in the presence and in absence of ADP (an index of phoshorilating efficiency) was reduced from 8.9 +/- 1.9 to 2.7 +/- 0.2 (p < 0.001) and from 5.7 +/- 1.0 to 2.0 +/- 0.3 (p < 0.01) in soleus and EDL, respectively. Activity of the different complexes of respiratory chain was investigated by means of specific inhibitors, showing major abnormalities at the level of complex I. In fact, inhibition of VO(2) by rotenone was decreased from 83.5 +/- 3.2 to 36.4 +/- 9.6 % (p < 0.005) and from 81.8 +/- 6.1 to 38.2 +/- 7.4 % (p < 0.005) in soleus and EDL, respectively. CONCLUSIONS In rats with CHF, abnormalities of oxidative phosphorylation of muscles occur and complex I of the respiratory chain seem to be primarily affected. The metabolic alterations of skeletal muscles in CHF may be explained, at least in part, by an impaired O(2) utilisation.
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Affiliation(s)
- Palmira Bernocchi
- Cardiovascular Research Centre, Fondazione S. Maugeri, IRCCS, 25064 Gussago (Brescia), Italy
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Boraso A, Ceconi C, Cargnoni A, Bernocchi P, Ferrari R, Ovize M. Beta-adrenergic receptors and intracellular signalling pathway in stunned and non-ischemic regions of pig myocardium. Basic Res Cardiol 2001; 96:388-94. [PMID: 11518195 DOI: 10.1007/s003950170047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The beta-adrenergic pathway may have a role in the pathophysiology of ischemic syndromes characterised by reversible left ventricular dysfunction, such as myocardial stunning and other clinical conditions of unstable angina or coronary spasms, or chronic reversible left ventricular dysfunction, which might be a consequence of repeated events of short-term ischemia ("repetitive stunning"). A partial-to-total occlusion of the left anterior descending coronary artery in pigs was used to induce short periods of ischemia (total ischemic time 12 +/- 2 min). Hypokinesis and dyskinesis of the myocardium were considered signs of myocardial dysfunction. We found a maintained function of the beta-adrenergic signalling system. Density and affinity of beta-adrenergic receptors were not different in stunned and non-ischemic regions, nor were cyclic AMP and cyclic GMP intracellular contents and ratio, nor well as the ratio of stimulatory/inhibitory G protein a subunits. Our findings are in agreement with a maintained beta-adrenergic signalling system in the pathophysiology of chronic reversible left ventricular dysfunction.
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Affiliation(s)
- A Boraso
- Fondazione Salvatore Maugeri, Clinica del Lavoro e della Riabilitazione, IRCCS, Cardiovascular Pathophysiology Research Center, Gusaago, Brescia, Italy.
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Cargnoni A, Comini L, Bernocchi P, Bachetti T, Ceconi C, Curello S, Ferrari R. Role of bradykinin and eNOS in the anti-ischaemic effect of trandolapril. Br J Pharmacol 2001; 133:145-53. [PMID: 11325804 PMCID: PMC1572767 DOI: 10.1038/sj.bjp.0704052] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
1. Angiotensin converting enzyme (ACE) inhibitors are under study in ischaemic heart diseases, their mechanism of action being still unknown. 2. The anti-ischaemic effect of trandolapril and the possible involvement of a bradykinin-modulation on endothelial constitutive nitric oxide synthase (eNOS) in exerting this effect, were investigated. 3. Three doses of trandolapril, chronically administered in vivo, were studied in isolated perfused rat hearts subjected to global ischaemia followed by reperfusion. 4. Trandolapril has an anti-ischaemic effect. The dose of 0.3 mg kg(-1) exerted the best effect reducing diastolic pressure increase during ischaemia (from 33.0+/-4.5 to 14.0+/-5.2 mmHg; P<0.05 vs control) and reperfusion (from 86.1+/-9.4 to 22.2+/-4.1 mmHg; P<0.01 vs control), improving functional recovery, counteracting creatine phosphokinase release and ameliorating energy metabolism after reperfusion. 5. Trandolapril down-regulated the baseline developed pressure. 6. Trandolapril increased myocardial bradykinin content (from 31.8+/-6.1 to 54.8+/-7.5 fmol/gww; P<0.05, at baseline) and eNOS expression and activity in aortic endothelium (both P<0.01 vs control) and in cardiac myocytes (from 11.3+/-1.5 to 17.0+/-2.0 mUOD microg protein(-1) and from 0.62+/-0.05 to 0.80+/-0.06 pmol mg prot(-1) min(-1); both P<0.05 vs control). 7. HOE 140 (a bradykinin B(2) receptor antagonist) and NOS inhibitors counteracted the above-reported effects. 8. There was a negative correlation between myocyte's eNOS up-regulation and myocardial contraction down-regulation. 9. Our findings suggest that the down-regulation exerted by trandolapril on baseline cardiac contractility, through a bradykinin-mediated increase in NO production, plays a crucial role in the anti-ischaemic effect of trandolapril by reducing energy breakdown during ischaemia.
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Affiliation(s)
- Anna Cargnoni
- Cardiovascular Research Center, Fondazione Salvatore Maugeri, IRCCS, Gussago, Brescia, Italy
| | - Laura Comini
- Cardiovascular Research Center, Fondazione Salvatore Maugeri, IRCCS, Gussago, Brescia, Italy
| | - Palmira Bernocchi
- Cardiovascular Research Center, Fondazione Salvatore Maugeri, IRCCS, Gussago, Brescia, Italy
| | - Tiziana Bachetti
- Cardiovascular Research Center, Fondazione Salvatore Maugeri, IRCCS, Gussago, Brescia, Italy
| | | | | | - Roberto Ferrari
- Chair of Cardiology, University of Ferrara, Italy
- Author for correspondence:
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de Jong JW, Schoemaker RG, de Jonge R, Bernocchi P, Keijzer E, Harrison R, Sharma HS, Ceconi C. Enhanced expression and activity of xanthine oxidoreductase in the failing heart. J Mol Cell Cardiol 2000; 32:2083-9. [PMID: 11040111 DOI: 10.1006/jmcc.2000.1240] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The molecular basis for heart failure is unknown, but oxidative stress is associated with the pathogenesis of the disease. We tested the hypothesis that the activity of xanthine oxidoreductase (XOR), a free-radical generating enzyme, increases in hypertrophied and failing heart. We studied XOR in two rat models: (1) The monocrotaline-induced right ventricular hypertrophy and failure model; (2) coronary artery ligation induced heart failure, with left ventricular failure and compensatory right ventricular hypertrophy at different stages at 3 and 8 weeks post-infarction, respectively. XOR activity was measured at 30 degrees C and the reaction products were analysed by HPLC. In both models XOR activity in hypertrophic and control ventricles was similar. In the monocrotaline model, the hearts showed enhanced XOR activity in the failing right ventricle (65+/-5 mU/g w/w), as compared to that in the unaffected left ventricle (47+/-3 mU/g P<0.05, n=6-7). In the coronary ligation model, XOR activities did not differ at 3 and 8 weeks. In the infarcted left ventricle, XOR activity increased from 29.4+/-1.4 mU/g (n=6) in sham-operated rats, to 48+/-3 and 80+/-6 mU/g (n=8 P<0.05 v sham) in the viable and infarcted parts of failing rat hearts, respectively. With affinity-purified polyclonal antibody, XOR was localized in CD68+ inflammatory cells of which the number increased more in the failing than in sham-operated hearts. Our results show that the expression of functional XOR is elevated in failing but not in hypertrophic ventricles, suggesting its potential role in the transition from cardiac hypertrophy into failure.
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Affiliation(s)
- J W de Jong
- Thoraxcenter, Erasmus University, Rotterdam, The Netherlands.
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Ceconi C, Bernocchi P, Boraso A, Cargnoni A, Pepi P, Curello S, Ferrari R. New insights on myocardial pyridine nucleotides and thiol redox state in ischemia and reperfusion damage. Cardiovasc Res 2000; 47:586-94. [PMID: 10963731 DOI: 10.1016/s0008-6363(00)00104-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE to investigate the changes of pyridine nucleotides and thiol redox state in cardiac tissue following ischemia and reperfusion. NADH/NAD and NADPH/NADP redox couples were specifically studied and the influence of NADPH availability on cellular thiol redox was also investigated. METHODS isolated rabbit hearts were Langendorff perfused and subjected to a protocol of ischemia and reperfusion. An improved technique for extraction and selective quantitation of pyridine nucleotides was applied. RESULTS ischemia and reperfusion induced an increase in diastolic pressure, limited recovery in developed pressure and loss of creatine phosphokinase. Creatine phosphate and ATP were decreased by ischemia and only partially recovered during reperfusion. NADH was increased (from 0. 36+/-0.04 to 1.96+/-0.15 micromol/g dry wt. in ischemia, P<0.001), whereas NADPH decreased during ischemia (from 0.78+/-0.04 to 0. 50+/-0.06 micromol/g dry wt., P<0.01) and reperfusion (0.45+/-0.03 micromol/g dry wt.). Furthermore, we observed: (a) release of reduced (GSH) and oxidised glutathione (GSSG) during reperfusion; (b) decreased content of reduced sulfhydryl groups during ischemia and reperfusion (GSH: from 10.02+/-0.76 to 7.11+/-0.81 nmol/mg protein, P<0.05, and to 5.48+/-0.57 nmol/mg protein; protein-SH: from 280.42+/-12.16 to 135.11+/-17.00 nmol/mg protein, P<0.001, and to 190.21+/-11.98 nmol/mg protein); (c) increased content in GSSG during reperfusion (from 0.17+/-0.02 to 0.36+/-0.02 nmol/mg protein, P<0.001); (d) increased content in mixed disulphides during ischemia (from 6.14+/-0.13 to 8.31+/-0.44 nmol/mg protein, P<0.01) and reperfusion (to 9.87+/-0.82 nmol/mg protein, P<0.01). CONCLUSIONS under severe low-flow ischemia, myocardial NADPH levels can decrease despite the accumulation of NADH. The reduced myocardial capacity to maintain NADPH/NADP redox potential can result in thiol redox state changes. These abnormalities may have important consequences on cellular function and viability.
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Affiliation(s)
- C Ceconi
- Chair of Cardiology, University of Brescia, Brescia, Italy.
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Cargnoni A, Ceconi C, Bernocchi P, Boraso A, Parrinello G, Curello S, Ferrari R. Reduction of oxidative stress by carvedilol: role in maintenance of ischaemic myocardium viability. Cardiovasc Res 2000; 47:556-66. [PMID: 10963728 DOI: 10.1016/s0008-6363(00)00082-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES To differentiate the impact of the beta-blocking and the anti-oxidant activity of carvedilol in maintaining myocardium viability. METHODS Isolated rabbit hearts, subjected to aerobic perfusion, or low-flow ischaemia followed by reperfusion, were treated with two doses of carvedilol, one dose (2.0 microM) with marked negative inotropic effect due to beta-blockage and the other (0.1 microM) with no beta-blockage nor negative inotropism. Carvedilol was compared with two doses of propranolol, 1.0 - without - and 5.0 microM - with negative inotropic effect. Anti-oxidant activity was measured as the capacity to counteract the occurrence of oxidative stress and myocardium viability as recovery of left ventricular function on reperfusion, membrane damage and energetic status. RESULTS Carvedilol counteracted the ischemia and reperfusion induced oxidative stress: myocardial content of reduced glutathione, protein and non-protein sulfhydryl groups after ischaemia and particularly after reperfusion, was higher in hearts treated with carvedilol, while the myocardial content of oxidised glutathione was significantly reduced (0.30+/-0.03 and 0.21+/-0.02 vs. 0.39+/-0.03 nmol/mg prot, both P<0.01, in 0.1 and 2.0 microM). At the same time, carvedilol improved myocardium viability independently from its beta-blocking effect. On the contrary, propranolol maintained viability only at the higher dose, although to a lesser extent than carvedilol. This suggests that the effects of propranolol are dependent on energy saving due to negative inotropism. The extra-protection observed with carvedilol at both doses is likely due to its anti-oxidant effect. CONCLUSIONS Our data show that the anti-oxidant activity of carvedilol is relevant for the maintenance of myocardium viability.
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Affiliation(s)
- A Cargnoni
- Cardiovascular Research Centre, Fondazione Salvatore Maugeri, IRCCS, Via Pinidolo 23, Gussago, Brescia, Italy.
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Boraso A, Ceconi C, Cargnoni A, Bernocchi P, Olivares A, Curello S, Ferrari R. Species differences on beta-adrenoceptors during ischaemia and reperfusion, after pretreatment with the ACE-inhibitor trandolapril. Eur J Heart Fail 2000. [DOI: 10.1016/s1388-9842(00)80008-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Antonella Boraso
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | | | - Anna Cargnoni
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Palmira Bernocchi
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Adriana Olivares
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
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Bernocchi P, Ceconi C, Cargnoni A, Boraso A, Curello S, Ferrari R. Effects of nitric oxide on energy metabolism in peripheral muscle. Eur J Heart Fail 2000. [DOI: 10.1016/s1388-9842(00)80106-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Palmira Bernocchi
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | | | - Anna Cargnoni
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Antonella Boraso
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
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Bernocchi P, Ceconi C, Cargnoni A, Boraso A, Curello S, Ferrari R. Skeletal muscle alterations in rats with experimentally-induced myocardial hypertrophy and failure. Eur J Heart Fail 2000. [DOI: 10.1016/s1388-9842(00)80108-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Palmira Bernocchi
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Claudio Ceconi
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Anna Cargnoni
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Antonella Boraso
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Salvatore Curello
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
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Cargnoni A, Ceconi C, Bernocchi P, Boraso A, Curello S, Ferrari R. Glutathione redox status: A sensor for NFκB activation during post-ischaemic reperfusion. Eur J Heart Fail 2000. [DOI: 10.1016/s1388-9842(00)80012-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Anna Cargnoni
- Cardiovascular Research Centre, Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | | | - Palmira Bernocchi
- Cardiovascular Research Centre, Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Antonella Boraso
- Cardiovascular Research Centre, Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
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Bernocchi P, Ceconi C, Cargnoni A, Comini L, Boraso A, Curello S, Ferrari R. TNFα affects energy metabolism in peripheral muscle via the nitric oxide pathway. Eur J Heart Fail 2000. [DOI: 10.1016/s1388-9842(00)80107-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Palmira Bernocchi
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | | | - Anna Cargnoni
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Laura Comini
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
| | - Antonella Boraso
- Cardiovascular Research Centre; Fondazione S. Maugeri, IRCCS; Gussago (Brescia) Italy
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Abstract
We have characterized the aerobic blood-perfused isolated heart model evaluating the hemodynamics and metabolism of both the blood donor animal and the isolated organ. Anaesthesia of the blood donor with sodium pentobarbital (30 mg/kg) increases arterial concentration of non esterified fatty acids (NEFA) from 80 +/- 6 to 452 +/- 70 microM; p < 0.01. Injection of 1,000 U/kg heparin causes a second significant increase from 452 +/- 70 to 1012 +/- 104 microM; p < 0.01. Insertion of the perfusion circuit, without the isolated heart, causes a reduction in blood pressure of the blood donor and a significant increase in norepinephrine from 277 +/- 44 to 634 +/- 130 pg/ml; p < 0.05. Two hours of aerobic perfusion of the isolated heart inserted in the perfusion circuit, decreases arterial pressure of the blood donor with a concomitant increase of plasma norepinephrine from 475 +/- 150 to 841 +/- 159 pg/ml; p < 0.05. Developed pressure, oxygen consumption, glucose and NEFA uptake of the isolated heart remain constant during two hours of aerobic perfusion, NEFA being the preferred substrate. Tissue content of high energy phosphates at the end of the perfusion is high and similar to that observed "in vivo". Despite this, there is a release of lactate and CPK from the isolated heart. We conclude that: 1) the model allows accurate measurement of hemodynamics and metabolism of both the isolated heart and the blood donor animal; 2) the perfusion procedure modifies the substrates concentration of the blood donor animal which, in turn, results in the preferential NEFA utilization of the isolated heart. These changes do not affect the functional parameters of the perfused heart.
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Affiliation(s)
- E Pasini
- Fondazione Salvatore Maugeri Centro di Fisiopatologia Cardiovascolare, Gussago, Brescia
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Abstract
Adenosine protects myocardium from ischemia and reperfusion damage; however, the mechanism of action is still under discussion. We investigated whether (a) adenosine protects isolated crystalloid-perfused rabbit heart from ischemia/ reperfusion injury; (b) this action is receptor mediated and what receptor subtypes are involved, and (c) this action is dependent on an enhanced nitric oxide production. Our results showed a cardioprotective effect of adenosine (10(-4) M), of nonselective adenosine-receptor agonist 5'-N-ethyl-carboxamidoadenosine (NECA; 5 x 10(-6) M), and of A2A agonists CGS 21680 (10(-8) and 10(-6) M), 2-hexynylNECA (10(-7) M). On the contrary, A1 agonist CCPA (10(-8) and 10(-6) M) does not provide any protection. The effect has been achieved in terms of significant reduction in contracture development during reperfusion [diastolic pressure was 46.8 +/- 7.1 mm Hg (p < 0.01); 46.1 +/- 7.8 mm Hg (p < 0.01); 46.9 +/- 5.5 mm Hg (p < 0.01); and 59.3 +/- 6.7 mm Hg (p < 0.05) with 10(-4) M adenosine, 5 x 10(-6) M NECA, 10(-6) M CGS 21680, and 10(-7) M 2-hexynylNECA, respectively, versus 77.6 +/- 5.0 mm Hg in control]; reduced creatine phosphokinase release (13.5 +/- 1.6, 22.2 +/- 7.9, 14.2 +/- 3.3, and 14.1 +/- 4.5 U/gww in treated hearts vs. 34.6 +/- 7.2 U/gww in controls; p < 0.05); improved energy metabolism [adenosine triphosphate (ATP) content is 9.9 +/- 0.5, 10.4 +/- 0.6, 9.8 +/- 0.5, and 10.5 +/- 0.5 micromol/gdw in treated hearts vs. 7.6 +/- 0.2 micromol/gdw; p < 0.05]. Moreover, our data indirectly show a functional presence of A2A receptors on cardiomyocytes as the protection is A2A mediated and exerted only during reperfusion, although in the absence of blood and coronary flow changes. These activities appear independent of nitric oxide pathways, as adenosine and 2-hexynylNECA effects are not affected by the presence of a nitric oxide-synthase inhibitor (10(-4) M L-NNA).
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Affiliation(s)
- A Cargnoni
- Cardiovascular Research Center, Salvatore Maugeri Foundation, Gussago, Brescia, Italy
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Cargnoni A, Ceconi C, Bernocchi P, Parrinello G, Benigno M, Boraso A, Curello S, Ferrari R. Changes in oxidative stress and cellular redox potential during myocardial storage for transplantation: experimental studies. J Heart Lung Transplant 1999; 18:478-87. [PMID: 10363693 DOI: 10.1016/s1053-2498(98)00045-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Cardioplegic solutions assure only a sub-optimal myocardial protection during prolonged storage for transplantation. The ultimate cause of myocardial damage during storage is unknown, but oxygen free radicals might be involved. We evaluated the occurrence of oxidative stress and changes in cellular redox potential after different periods of hypothermic storage. METHODS Langendorff-perfused rabbit hearts were subjected to a protocol mimicking each stage of a cardiac transplantation procedure: explantation, storage and reperfusion. Three periods of storage were considered: Group A = 5 hours, Group B = 15 hours, and Group C = 24 hours. Oxidative stress was determined in terms of myocardial content and release of reduced (GSH) and oxidized (GSSG) glutathione, and cellular redox potential as oxidized and reduced pyridine nucleotides ratio (NAD/NADH). Data on mechanical function, cellular integrity and myocardial energetic status were collected. RESULTS At the end of reperfusion, despite the different timings of storage, recovery of left ventricular developed pressure (46.1+/-7.0, 54.7+/-6.7, and 45.7+/-7.4% of the baseline pre-ischaemic value), energy charge (0.81+/-0.02, 0.81+/-0.02, and 0.77+/-0.01) and NAD/NADH ratio (8.87+/-1.08, 9.39+/-1.72, and 10.26+/-1.98) were similar in all groups (A, B and C). On the contrary, the rise in left ventricular resting pressure (LVRP) and GSH/GSSG ratio were significantly different between Group C, and Groups A and B (p<0.0001, analyzed by Generalized Estimating Equations model for repeated measures, and p<0.05, respectively). CONCLUSIONS The pathophysiology of myocardial damage during hypothermic storage cannot be considered as a normothermic ischaemic injury and parameters other than energetic metabolism, such as thiolic redox state, are more predictive of functional recovery upon reperfusion.
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Affiliation(s)
- A Cargnoni
- Salvatore Maugeri Foundation, IRCCS, Cardiovascular Pathophysiology Research Center, Gussago, Italy
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Vescovo G, Ceconi C, Bernocchi P, Ferrari R, Carraro U, Ambrosio GB, Libera LD. Skeletal muscle myosin heavy chain expression in rats with monocrotaline-induced cardiac hypertrophy and failure. Relation to blood flow and degree of muscle atrophy. Cardiovasc Res 1998; 39:233-41. [PMID: 9764203 DOI: 10.1016/s0008-6363(98)00041-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND In congestive heart failure (CHF) the skeletal muscle of the lower limbs develops a myopathy characterised by atrophy and shift from the slow to the fast type fibres. The mechanisms responsible for these changes are not clear yet. OBJECTIVES We investigated the influence of blood flow and degree of muscle atrophy on the myosin heavy chains (MHC) composition of the soleus and extensor digitorum longus (EDL) of rats with right ventricle hypertrophy and failure. METHODS CHF was induced in 16 rats by injecting 30 mg/kg monocrotaline. Eight animals had the same dose of monocrotaline but resulting in compensated right ventricle hypertrophy. Two age- and diet-matched groups of control animals (nine and five respectively) were also studied. The relative percentage of MHC1 (slow isoform), MHC2a (fast oxidative) and MHC2b (fast glycolytic) was determined by densitometric scan after electrophoretic separation. The relative weights of soleus and EDL (muscle weight/body weight) were taken as an index of muscle atrophy. Skeletal muscle blood flow was measured by injecting fluorescent micropheres. RESULTS CHF and Control (Con) rats showed similar degree of atrophy both in soleus (0.40 +/- 0.06 vs. 0.44 +/- 0.06 p = NS), and EDL (0.47 +/- 0.04 vs. 0.45 +/- 0.02, p = 0.09). In CHF rats these two muscles showed a statistically significant MHCs redistribution toward the fast type isozymes. In fact in EDL of CHF rats MHC2a was 30.5 +/- 6.1% vs. 35.8 +/- 8.6% of the Con (p < 0.05). MHC2b was however higher (68.5 +/- 6.6% vs. 61.0 +/- 9.6%, p = 0.017). In the soleus of CHF rats MHC1 was decreased (87.6 +/- 3.4% vs. 91.9 +/- 5.2%, p = 0.02), while MHC2a was increased (12.04 +/- 3.5% vs. 7.9 +/- 5.2%; p = 0.028). Similar changes were not found in the muscles of the compensated hypertrophy animals. No correlation was found between MHC pattern and the relative muscle weight in the CHF animals. Soleus blood flow in CHF rats was significantly lower than that of Con (0.11 +/- 0.03 ml/min/g vs. 0.22 +/- 0.03 p < 0.05), while no differences were found in EDL (0.06 +/- 0.02 ml/min/g vs. 0.08 +/- 0.02, p = NS). CONCLUSIONS In rats with CHF a skeletal muscle myopathy characterised by a shift of the MHCs toward the fast type isoforms occurs. The magnitude of the shift correlates neither with the degree of atrophy, nor with the skeletal muscle blood flow, suggesting that these two factors do not play a pivotal role in the pathogenesis of the myopathy.
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Affiliation(s)
- G Vescovo
- First Division of Internal Medicine, Venice City Hospital, Italy.
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Abstract
We tested the hypothesis that stunning following a brief period of ischaemia is a component of cardioprotection afforded by preconditioning in an in vitro model of global normothermic ischaemia. Isolated Langendorff-perfused rat hearts, after 120-150 min of aerobic perfusion, were divided into four groups. Groups 1 and 2 constituted the aerobic and ischaemic controls. The other hearts were preconditioned by two 2-min ischaemia/reperfusion cycles. Two ischaemic preconditioning protocols were used, the only difference being prolongation of the reperfusion cycle from 5 (group 3) to 20 min (group 4) before the onset of severe ischaemic insult. Mechanical function, energetic metabolism and the rate of enzyme release were followed throughout. In group 3, myocardial function remained significantly downregulated before the onset of severe ischaemia. This resulted in cardiac protection as evidenced by enhanced recovery of systolic pressure (37.7 +/- 3.6 v 61.9 +/- 5.7 mmHg for groups 2 and 3, respectively; P < 0.02), reduced rise in diastolic pressure (55.8 +/- 5.9 v 34.3 +/- 5.2 mmHg; P < 0.02), reduced creatine kinase (CK) release (957.3 +/- 175.7 v 541.5 +/- 85.9 mU/min/gww; P < 0.05) and higher contents of high-energy phosphate at the end of ischaemia [3.6 +/- 0.3 v 25.3 +/- 2.9 mumol/gdw for creatine phosphate (CP), P < 0.001] as well as after reperfusion (16.8 +/- 2.4 v 31.4 +/- 1.8 for CP, P < 0.01, and 3.9 +/- 0.5 v 6.2 +/- 0.8 mumol/gdw for ATP, P < 0.05). When severe ischaemia was started only after complete recovery of mechanical function (group 4), no protection was observed. Our data suggest that a decrease in mechanical function or stunning occurring after the short period of ischaemia causes ATP sparing and constitutes an additional mechanism of preconditioning cardioprotection in vitro.
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Affiliation(s)
- A Cargnoni
- Salvatore Maugeri Foundation, IRCCS, Cardiovascular Pathophysiology Research Center, Gussago, Brescia, Italy
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Ferrari R, Cargnoni A, Bernocchi P, Pasini E, Curello S, Ceconi C, Ruigrok TJ. Metabolic adaptation during a sequence of no-flow and low-flow ischemia. A possible trigger for hibernation. Circulation 1996; 94:2587-96. [PMID: 8921805 DOI: 10.1161/01.cir.94.10.2587] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Myocardial hibernation is an adaptive phenomenon occurring in patients with a history of acute ischemia followed by prolonged hypoperfusion. METHODS AND RESULTS We investigated, in isolated rabbit heart, whether a brief episode of global ischemia followed by hypoperfusion maintains viability. Four groups were studied; group 1,300 minutes of aerobia; group 2,240 minutes of total ischemia and 60 minutes of reperfusion; group 3, 10 minutes of total ischemia, 230 minutes of hypoperfusion (90% coronary flow reduction), and 60 minutes of reperfusion; and group 4, 240 minutes of hypoperfusion followed by reperfusion. In group 3, viability was maintained. Ten minutes of ischemia caused quiescence, a fall in interstitial pH (from 7.2 +/- 0.01 to 6.1 +/- 0.8), creatine phosphate (CP), and ATP (from 54.5 +/- 5.0 and 25.0 +/- 1.9 to 5.0 +/- 1.1 and 15.3 +/- 2.5 mumol/g dry wt, P < .01). Subsequent hypoperfusion failed to restore contraction and pH but improved CP (from 5.0 +/- 1.1 to 20.1 +/- 3.4, P < .01). Reperfusion restored pH, developed pressure (to 92.3%), and NAD/NADH and caused a washout of lactate and creatine phosphokinase with no alterations of mitochondrial function or oxidative stress. In group 4, hypoperfusion resulted in progressive damage. pH fell to 6.2 +/- 0.7, diastolic pressure increased to 34 +/- 5.6 mm Hg, CP and ATP became depressed, and oxidative stress occurred. Reperfusion partially restored cardiac metabolism and function (47%). CONCLUSIONS A brief episode of total ischemia without intermittent reperfusion maintains viability despite prolonged hypoperfusion. This could be mediated by metabolic adaptation, preconditioning, or both.
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Affiliation(s)
- R Ferrari
- Chair of Cardiology, University of Brescia, Italy.
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Abstract
We studied peripheral skeletal muscle metabolism in monocrotaline-treated rats. Two distinct groups emerged: a percentage of the animals developed ventricular hypertrophy, with no signs of heart failure (compensated group), whilst others, besides ventricular hypertrophy, developed the syndrome of congestive heart failure (CFH group). Oxidative metabolism and redox cellular state were expressed in terms of creatine phosphate, purine (ATP, ADP and AMP) and pyridine (NAD and NADH) nucleotides tissue content. Skeletal muscles with different metabolism were studied: (a) Soleus (oxidative), (b) extensor digitorium longus (glycolytic) and tibialis anterior (oxidative and glycolytic). The results showed that in CFH animals a decreased high-energy phosphates content occurs in the soleus and extensor digitorum longus, but not in the tibialis anterior. In the soleus. ATP declined from 20.31 +/- 2.5 of control group to 9.55 +/- 0.61 mumol/g dry wt. while in the extensor digitorum longus ATP declined from 30.92 +/- 2.68 to 22.7 +/- 1.54 mumol/g dry wt. In both these muscles, a shift of NAD/NADH couple towards oxidation was also observed (from 26.58 +/- 3.34 to 6.95 +/- 0.97 and from 18.88 +/- 3.43 to 10.57 +/- 1.61, respectively). These alterations were more evident in the aerobic soleus muscle. On the contrary, no major changes occurred in skeletal muscle metabolism of compensated animals. The results show that: (1) a decrease in muscle high-energy phosphates occurs in CFH; (2) this is accompanied by a decrease of NAD/NADH couple suggesting an impairment in oxygen utilization or availability.
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Affiliation(s)
- P Bernocchi
- Fondazione Salvatore Maugeri, Clinica del Lavoro e della Riabilitazione, Gussago, Brescia, Italy
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Ferrari R, Cargnoni A, Bernocchi P, Gaia G, Benigno M, Pasini E, Pedersini P, Ceconi C. Effects of felodipine on the ischemic heart: insight into the mechanism of cytoprotection. Cardiovasc Drugs Ther 1996; 10:425-37. [PMID: 8924056 DOI: 10.1007/bf00051107] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
To assess whether the administration of felodipine protects the myocardium in a dose-dependent manner against ischemia and reperfusion, isolated rabbit hearts were infused with three different concentrations of felodipine: 10(-10), 10(-9), and 10(-8) M. Diastolic and developed pressures were monitored; coronary effluent was collected and assayed for CPK activity and for noradrenaline concentration; mitochondria were harvested and assayed for respiratory activity; and ATP production and calcium content and tissue concentration of ATP, creatine phosphate (CP), and calcium were determined. The occurrence of oxidative stress during ischemia and reperfusion was also monitored in terms of tissue content and release of reduced (GSH) and oxidized (GSSG) glutathione. Treatment with felodipine at 10(-10) and 10(-9) M had no effect on the hearts when perfused under aerobic conditions, whilst the higher dose reduced developed pressure from 57.7 +/- 2.6 to 30.0 +/- 2.6 mmHg (p < 0.01). On reperfusion treated hearts recovered better than the untreated hearts with respect to left ventricular performance, replenishment of ATP and CP stores, and mitochondrial function. Recovery of developed pressure was 100% at 10(-8) M, 55% at 10(-9) M, and 46% at 10(-10) M. The reperfusion-induced tissue and mitochondrial calcium overload, release of CPK and noradrenaline, and oxidative stress were also significantly reduced. The effects of felodipine were dose dependent. Felodipine inhibited the initial rate of ATP-driven calcium uptake but failed to affect the initial rate of mitochondrial calcium transport. It is concluded that felodipine infusion provides dose-dependent protection of the heart against ischemia and reperfusion. Because this protection also occurred at 10(-9) M and 10(-10) M in the absence of a negative inotropic effect during normoxia and of a coronary dilatory effect during ischaemia, it cannot be attributed to an energy-sparing effect or to improvement in oxygen delivery. From our data we can envisage two other major mechanisms-(1) membrane protection and (2) reduction in oxygen toxicity. The ATP-sparing effect occurring at 10(-8) M is likely to be responsible for the further protection.
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Affiliation(s)
- R Ferrari
- Cattedra di Cardiologia, Universita' degli Studi di Brescia, Italy
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Galiñanes M, Bernocchi P, Argano V, Cargnoni A, Ferrari R, Hearse DJ. Dichotomy in the post-ischemic metabolic and functional recovery profiles of isolated blood-versus buffer-perfused heart. J Mol Cell Cardiol 1996; 28:531-9. [PMID: 9011636 DOI: 10.1006/jmcc.1996.0049] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
There is evidence that buffer- and blood-perfused hearts differ in their postischemic functional recoveries. The present study was designed to: (i) compare ischemia-induced contracture and post-ischemic functional recovery, and (ii) investigate whether the recovery profiles were related to either the release of purines and norepinephrine or high-energy phosphate content. Rat hearts (n = 8/group) were perfused at 37 degrees C with buffer (60 mmHg) or blood (60 mmHg from a support rat), made globally ischemic (15 min) and reperfused (15 min). The onset and severity of ischemic contracture were identical in both models [left ventricular end-diastolic pressure (LVEDP) at the end of 15 min ischemia was 30 +/- 5 and 27 +/- 4 mmHg respectively; P = N.S.]. However, the rate and extent of post-ischemic left ventricular developed pressure (LVDP) differed considerably. Blood-perfused hearts exhibited an initial rapid and complete recovery of LVDP followed by a steady decline to approximately 60% of pre-ischemic values. Buffer-perfused hearts recovered to only 80% after 5 min reperfusion and remained at this level for the duration of reperfusion LVEDP was higher in buffer-perfused than in blood-perfused hearts during the first 5 min of reperfusion; thereafter, LVEDP fell in buffer-perfused hearts to a level than was not significantly different from the observed in blood-perfused hearts. In buffer-perfused hearts, coronary flow recovered to 90% within 5 min and then remained constant; in blood-perfused hearts flow recovered to 100% by 1 min and continued to rise to a maximum by 7 min (201 +/- 15%). This increase appeared to mirror the secondary decline in LVDP. During the first 4 min of reperfusion, in both preparations, venous norepinephrine increased to six- to nine-fold of pre-ischemic values and then fell rapidly to near control levels by 6-9 min. Total purine release was high in early reperfusion in both groups. At the end of 15 min reperfusion, the tissue adenylate pool was similar in both groups. This study demonstrates that the nature of the perfusate used for an isolated rat heart preparation: (i) does not appear to influence the severity of ischemic injury as assessed by ischemic contracture, but (ii) does influence the qualitative and quantitative characteristics of the temporal profile that describes the recovery of systolic and diastolic function during the first 15 min of reperfusion: and (iii) it has no effect upon the changes seen in a number of metabolic indices that are often used for the assessment of injury and protection.
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Affiliation(s)
- M Galiñanes
- Cardiovascular Research, Rayne Institute, St Thomas' Hospital, London, UK
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Cargnoni A, Bernocchi P, Ceconi C, Curello S, Ferrari R. In vitro administration of ergothioneine failed to protect isolated ischaemic and reperfused rabbit heart. Biochim Biophys Acta 1995; 1270:173-8. [PMID: 7727541 DOI: 10.1016/0925-4439(94)00084-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Ergothioneine, a natural thiol-containing molecule, has recently been proposed to protect the heart against damage caused by ischaemia and reperfusion. We investigated the possibility that ergothioneine can have a role in maintaining the myocardial thiol/disulfide balance and consequently also a protective effect against ischaemic and reperfusion injury. We used isolated Langendorff-perfused rabbit hearts subjected to 45 min global and total ischaemia followed by 30 min reperfusion at baseline coronary flow (22 ml/min). Ergothioneine was delivered at 10(-5) M and 10(-4) M 60 min before ischaemia and during reperfusion. Myocardial damage was determined in terms of mechanical function, creatine kinase (CK) and lactate release, energy phosphate stores and the occurrence of oxidative stress. In our experimental conditions the treatment was unable to prevent myocardial damage. Ergothioneine, independently from the dosage used, failed to: (i) increase recovery of developed pressure upon reperfusion (14.4 +/- 2.3 mmHg in control hearts vs. 10.3 +/- 2.9 and 12.5 +/- 2.3 mmHg in 10(-5) M and 10(-4) M ergothioneine treated hearts, respectively); (ii) decrease the rise in diastolic pressure (44.3 +/- 4.4 mmHg in control hearts vs. 49.8 +/- 5.8 and 48.0 +/- 7.7 mmHg in treated hearts); (iii) decrease the release of CK and lactate; (iv) increase the levels of adenosine triphosphate (ATP) and creatine phosphate (CP) in tissue upon reperfusion; (v) maintain ratio between oxidized and reduced forms of adenine nucleotide coenzyme, as index of aerobic metabolism; (vi) prevent the decline of reduced glutathione (GSH), or the accumulation of oxidized glutathione (GSSG) as an index of oxidative stress.
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Affiliation(s)
- A Cargnoni
- Cattedra di Cardiologia, Università degli Studi di Brescia, Italy
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Bernocchi P, Ceconi C, Cargnoni A, Pedersini P, Curello S, Ferrari R. Extraction and assay of creatine phosphate, purine, and pyridine nucleotides in cardiac tissue by reversed-phase high-performance liquid chromatography. Anal Biochem 1994; 222:374-9. [PMID: 7864361 DOI: 10.1006/abio.1994.1505] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The levels of creatine phosphate, purine, and pyridine nucleotides in tissues provide important information on energetic and oxidative cellular states. Nevertheless, technical, theoretical, and methodological difficulties in extraction and quantification procedures have so far limited our understanding of the exact role that these substances play in metabolic processes which take place in cells. The objective of our study was to find an easy and rapid method for extracting, separating, and quantifying creatine phosphate, purine, and pyridine nucleotides in solid tissues. We adapted the classic acid-extraction procedure with HClO4 for purine and oxidized pyridine nucleotides and then developed a new alkaline extraction with phenol in a phosphate buffer solution (pH 7.8) for reduced pyridine nucleotides. Biopsies of myocardial tissue were frozen and ground at -180 degrees C using the appropriate extraction procedure. The separation and quantification of the metabolites were performed using a reversed-phase 3-microns Supelchem C18 column, with the addition of tetrabutylammonium as an ion-pair agent to the buffer solution, by ultraviolet detection. The recovery of the external and internal standards always exceeded 90%. The autooxidation or interconversion processes were almost insignificant for each reduced form. This technique allowed us to avoid complex enzymatic procedures and difficulties in the selective assay of pyridine nucleotides with chemiluminescence and surface spectroscopy.
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Affiliation(s)
- P Bernocchi
- Fondazione Clinica del Lavoro di Pavia, Centro di Fisiopatologia Cardiovascolare S. Maugeri, Gussago, Brescia, Italy
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