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1.
Crit Care ; 27(1): 338, 2023 08 30.
Artículo en Inglés | MEDLINE | ID: mdl-37649092

RESUMEN

BACKGROUND: Few specific methods are available to reduce the risk of diaphragmatic dysfunction for patients under mechanical ventilation. The number of studies involving transcutaneous electrical stimulation of the diaphragm (TEDS) is increasing but none report results for diaphragmatic measurements, and they lack power. We hypothesised that the use of TEDS would decrease diaphragmatic dysfunction and improve respiratory muscle strength in patients in ICU. METHODS: We conducted a controlled trial to assess the impact of daily active electrical stimulation versus sham stimulation on the prevention of diaphragm dysfunction during the weaning process from mechanical ventilation. The evaluation was based on ultrasound measurements of diaphragm thickening fraction during spontaneous breathing trials. We also measured maximal inspiratory muscle pressure (MIP), peak cough flow (PEF) and extubation failure. RESULTS: Sixty-six patients were included and randomised using a 1:1 ratio. The mean number of days of mechanical ventilation was 10 ± 6.8. Diaphragm thickening fraction was > 30% at the SBT for 67% of participants in the TEDS group and 54% of the Sham group (OR1.55, 95% CI 0.47-5.1; p = 0.47). MIP and PEF were similar in the TEDS and Sham groups (respectively 35.5 ± 11.9 vs 29.7 ± 11.7 cmH20; p = 0.469 and 83.2 ± 39.5 vs. 75.3 ± 34.08 L/min; p = 0.83). Rate of extubation failure was not different between groups. CONCLUSION: TEDS did not prevent diaphragm dysfunction or improve inspiratory muscle strength in mechanically ventilated patients. TRIAL REGISTRATION: Prospectively registered on the 20th November 2019 on ClinicalTrials.gov Identifier NCT04171024.


Asunto(s)
Diafragma , Estimulación Eléctrica Transcutánea del Nervio , Humanos , Respiración Artificial/efectos adversos , Tórax , Músculos Respiratorios
2.
Respiration ; 102(3): 173-181, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36634636

RESUMEN

BACKGROUND: Oxygen uptake (V̇O2) and heart rate (HR) kinetics during a constant work-rate test (CWRT) are used to evaluate the response to exercise in healthy subjects as well as subjects with various pathologies. OBJECTIVES: This study aimed to explore the feasibility of these measures and their responsiveness to a prehabilitation program in patients with non-small cell lung cancer (NSCLC). METHOD: This study is preregistered (NCT04041297) ancillary analysis of a subgroup of individuals with NSCLC included in the Preo-Dens study (NCT03936764). Thirty individuals performed a moderate-CWRT before and after a 15-session prehabilitation program between July 2019 and April 2021. V̇O2 and HR on-kinetics were extracted from the first 240 s of breath-by-breath data using Box-Jenkins transfer functions. RESULTS: Pre/post V̇O2 on-kinetic feature values were reliable for 25/30 participants, and pre/post HR kinetic feature values were reliable for 19/30. V̇O2 time constant (τ) and mean response time reduced from pre-post prehabilitation (mean difference -7.8 s; 95% CI: -14.6 to -1.0, and -8.4 s; 95% CI: -14.7 to -2.0, respectively). For HR on-kinetics, τ did not change from pre-post prehabilitation (median difference -4.0 s; 95% CI: -36.0 to +11.0). V̇O2 and HR response amplitudes reduced significatively from pre-post prehabilitation (mean difference -38.6 mL/min; 95% CI: -73.3 to -3.9, and -3.1 beats/min; 95% CI: -6.4 to -0.2, respectively). CONCLUSION: V̇O2 on-kinetic analysis during moderate-CWRT is feasible in individuals with scheduled NSCLC resection, and results are responsive to prehabilitation. These results support a true speeding of the adaptation of aerobic metabolism after a 15-session prehabilitation program.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Humanos , Carcinoma de Pulmón de Células no Pequeñas/cirugía , Frecuencia Cardíaca , Ejercicio Preoperatorio , Cinética , Neoplasias Pulmonares/cirugía , Prueba de Esfuerzo , Oxígeno/metabolismo , Consumo de Oxígeno/fisiología
3.
Thorax ; 77(5): 486-496, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-34429375

RESUMEN

INTRODUCTION: Exercise training before lung resection for non-small cell lung cancer is believed to decrease postoperative complications (POC) by improving cardiorespiratory fitness. However, this intervention lacks a strong evidence base. AIM: To assess the effectiveness of preoperative exercise training compared with usual care on POC and other secondary outcomes in patients with scheduled lung resection. METHODS: A systematic search of randomised trials was conducted by two authors. Meta-analysis was performed, and the effect of exercise training was estimated by risk ratios (RR) and mean differences, with their CIs. Clinical usefulness was estimated according to minimal important difference values (MID). RESULTS: Fourteen studies involving 791 participants were included. Compared with usual care, exercise training reduced overall POC (10 studies, 617 participants, RR 0.58, 95% CI 0.45 to 0.75) and clinically relevant POC (4 studies, 302 participants, Clavien-Dindo score ≥2 RR 0.42, 95% CI 0.25 to 0.69). The estimate of the effect of exercise training on mortality was very imprecise (6 studies, 456 participants, RR 0.66, 95% CI 0.20 to 2.22). The main risks of bias were a lack of participant blinding and selective reporting. Exercise training appeared to improve exercise capacity, pulmonary function and also quality of life and depression, although the clinical usefulness of the changes was unclear. The quality of the evidence was graded for each outcome. CONCLUSION: Preoperative exercise training leads to a worthwhile reduction in postoperative complications. These estimates were both accurate and large enough to make recommendations for clinical practice.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Carcinoma de Pulmón de Células no Pequeñas/cirugía , Ejercicio Físico , Humanos , Pulmón , Neoplasias Pulmonares/cirugía , Complicaciones Posoperatorias , Calidad de Vida
4.
BMC Anesthesiol ; 21(1): 64, 2021 03 02.
Artículo en Inglés | MEDLINE | ID: mdl-33653264

RESUMEN

BACKGROUND: Few studies have evaluated muscle strength in COVID-19 ICU survivors. We aimed to report the incidence of limb and respiratory muscle weakness in COVID-19 ICU survivors. METHOD: We performed a cross sectional study in two ICU tertiary Hospital Settings. COVID-19 ICU survivors were screened and respiratory and limb muscle strength were measured at the time of extubation. An ICU mobility scale was performed at ICU discharge and walking capacity was self-evaluated by patients 30 days after weaning from mechanical ventilation. RESULTS: Twenty-three patients were included. Sixteen (69%) had limb muscle weakness and 6 (26%) had overlap limb and respiratory muscle weakness. Amount of physiotherapy was not associated with muscle strength. 44% of patients with limb weakness were unable to walk 100 m 30 days after weaning. CONCLUSION: The large majority of COVID-19 ICU survivors developed ICU acquired limb muscle weakness. 44% of patients with limb weakness still had severely limited function one-month post weaning.


Asunto(s)
COVID-19/complicaciones , Debilidad Muscular/etiología , Anciano , Brazo/fisiopatología , COVID-19/fisiopatología , Estudios Transversales , Femenino , Estudios de Seguimiento , Francia , Humanos , Pierna/fisiopatología , Pulmón/fisiopatología , Masculino , Persona de Mediana Edad , Debilidad Muscular/fisiopatología , Estudios Retrospectivos , SARS-CoV-2
5.
Thorax ; 75(9): 791-797, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32651199

RESUMEN

BACKGROUND: Thoracic surgery is the optimal treatment for early-stage lung cancer, but there is a high risk of postoperative morbidity. Therefore, it is necessary to evaluate patients' preoperative general condition and cardiorespiratory capacity to determine the risk of postoperative complications. The objective of this study was to assess whether the stair-climbing test could be used in the preoperative evaluation of lung resection patients to predict postoperative morbidity following thoracic surgery. METHODS: We performed a systematic review and a meta-analysis on the association between stair-climbing test result and morbidity/mortality after thoracic surgery. We analysed all articles published until May 2020 in the following databases: Pubmed/Medline, Pedro, The Cochrane library, Embase and CINAHL. The risk of bias was assessed using the Quality in Prognosis Studies tool. This meta-analysis is registered as PROSPERO CRD42019121348. RESULTS: 13 articles were included in the systematic review for a total of 2038 patients and 6 in the meta-analysis. There were multiple test evaluation criteria: rise time, height, desaturation and heart rate change. For the meta-analysis, we were able to pool data on the height of rise at a variable threshold: risk ratio 2.34 (95% CI 1.59 to 3.43) with I²=53% (p=0.06). The threshold for occurrence of complications was estimated at a 10 m climb. CONCLUSIONS: Our results indicate that the stair-climbing test could be used as a first-line functional screening test to predict postoperative morbidity following thoracic surgery and that patients with a poor test result (<10 m) should be referred to formal cardiopulmonary exercise testing.


Asunto(s)
Prueba de Esfuerzo , Neoplasias Pulmonares/fisiopatología , Neumonectomía/efectos adversos , Complicaciones Posoperatorias/etiología , Subida de Escaleras , Frecuencia Cardíaca , Humanos , Neoplasias Pulmonares/cirugía , Valor Predictivo de las Pruebas , Periodo Preoperatorio , Factores de Tiempo
6.
Thorax ; 75(6): 510-512, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32217783

RESUMEN

In this randomised, crossover trial, 22 patients with severe chronic obstructive pulmonary disease climbed six flights of stairs (108 steps) twice, under two test conditions: (1) energy conservation technique (ECT): participants were asked to rest for at least 5 seconds every three steps and (2) control condition: participants climbed the stairs at their own pace. Significant lower dyspnoea (primary outcome), leg discomfort, minute ventilation and capillary blood lactate under the ECT condition were found, with no change in total task time. CLINICAL TRIAL REGISTRATION: NCT03564028.


Asunto(s)
Disnea/fisiopatología , Esfuerzo Físico , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Descanso , Anciano , Estudios Cruzados , Femenino , Humanos , Lactatos/sangre , Masculino , Persona de Mediana Edad , Ventilación Pulmonar
7.
Eur Respir J ; 56(4)2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32366493

RESUMEN

BACKGROUND: The relationship between muscle function in critically ill patients assessed using bedside techniques and clinical outcomes has not been systematically described. We aimed to evaluate the association between muscle weakness assessed by bedside evaluation and mortality or weaning from mechanical ventilation, and the capacity of each evaluation tool to predict outcomes. METHODS: Five databases (PubMed, Embase, CINAHL, Cochrane Library, Science Direct) were searched from January 2000 to December 2018. Data were extracted and random effects meta-analyses were performed. RESULTS: 60 studies were analysed, including 4382 patients. Intensive care unit (ICU)-related muscle weakness was associated with an increase in overall mortality with odds ratios ranging from 1.2 (95% CI 0.60-2.40) to 4.48 (95% CI 1.49-13.42). Transdiaphragmatic twitch pressure had the highest predictive capacity for overall mortality, with a sensitivity of 0.87 (95% CI 0.76-0.93) and a specificity of 0.36 (95% CI 0.27-0.43). The area under the curve (AUC) was 0.74 (95% CI 0.70-0.78). Muscle weakness was associated with an increase in mechanical ventilation weaning failure rate with an odds ratio ranging from 2.64 (95% CI 0.72-9.64) to 19.07 (95% CI 9.35-38.9). Diaphragm thickening fraction had the highest predictive capacity for weaning failure with a sensitivity of 0.76 (95% CI 0.67-0.83) and a specificity of 0.86 (95% CI 0.78-0.92). The AUC was 0.86 (95% CI 0.83-0.89). CONCLUSION: ICU-related muscle weakness detected by bedside techniques is a serious issue associated with a high risk of death or prolonged mechanical ventilation. Evaluating diaphragm function should be a clinical priority in the ICU.


Asunto(s)
Unidades de Cuidados Intensivos , Desconexión del Ventilador , Enfermedad Crítica , Diafragma , Humanos , Respiración Artificial
8.
Respirology ; 24(11): 1088-1094, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31387158

RESUMEN

BACKGROUND AND OBJECTIVE: We hypothesized that by reducing respiratory work and improving gas exchange, nasal high flow (NHF) would improve exercise tolerance in patients with chronic obstructive pulmonary disease (COPD) following respiratory exacerbation. METHODS: This was a monocentric, randomized, controlled crossover study. Patients with severe to very severe COPD carried out two high-intensity constant work-rate exercise tests (CWRET) with and without NHF on two consecutive days. The primary outcome was the mean difference in endurance time between both conditions. The secondary aims included vastus lateralis oxygenation (StO2 ), dyspnoea, leg discomfort, maximal inspiratory pressure (MIP), transcutaneous CO2 pressure (PtcCO2 ), respiratory rate (RR), heart rate (HR) and pulsed O2 saturation (SpO2 ), as well as the patients' opinions of the device. RESULTS: A total of 19 patients were included (mean forced expiratory volume in 1 s = 28.7 ± 10.8%, age = 62.1 ± 9.1 years). No significant differences in endurance time during the CWRET were found between the two test conditions (-66.58 (95% CI: -155.9 to 22.7) s, P = 0.12). StO2 , PtCO2 and HR were reduced at the end of the exercise with NHF (-2.1% (95% CI: -4.3 to -0.0); -1.3 mm Hg (95% CI: -2.5 to -0.2); -2.7 bpm (95% CI: -5.0 to -0.5), respectively, P ≤ 0.05). No significant differences were found for any of the other secondary outcomes. Half of the patients evaluated the device as being moderately to very uncomfortable. CONCLUSION: NHF during exercise did not increase endurance time in patients with COPD following exacerbation. CLINICAL TRIAL REGISTRATION: NCT03058081 at clinicaltrials.gov.


Asunto(s)
Prueba de Esfuerzo/métodos , Tolerancia al Ejercicio , Terapia por Inhalación de Oxígeno , Enfermedad Pulmonar Obstructiva Crónica , Monitoreo de Gas Sanguíneo Transcutáneo , Cánula , Estudios Cruzados , Femenino , Volumen Espiratorio Forzado , Humanos , Masculino , Persona de Mediana Edad , Terapia por Inhalación de Oxígeno/instrumentación , Terapia por Inhalación de Oxígeno/métodos , Enfermedad Pulmonar Obstructiva Crónica/diagnóstico , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Enfermedad Pulmonar Obstructiva Crónica/terapia , Pruebas de Función Respiratoria/métodos , Brote de los Síntomas , Resultado del Tratamiento
9.
COPD ; 16(3-4): 261-265, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31387412

RESUMEN

Early diagnosis of COPD exacerbations is vital. Exacerbations are characterised by an increase in dyspnoea that could be affect physical capacity. Changes in the physical capacity of patients with COPD during pulmonary rehabilitation could provide a predictive indication regarding the occurrence of exacerbation. This was a retrospective study of forty for patients with COPD who participated in a pulmonary rehabilitation programme between January 2015 and October 2018. Patients to have experienced at least one exacerbation during their pulmonary rehabilitation programme are included. The performance variable and dyspnoea on the cycle ergometer and the treadmill were collected during the five sessions prior to the exacerbation and the three sessions following the exacerbation. Seventy exacerbations were analysed. We found a significant decrease in the performance on the cycle ergometer during the last session before exacerbation compared with previous sessions (mean difference: 74.5% (95%CI 12.6-136.5); p < 0.01). The optimal threshold value was a 17% decrease in performance compared to the previous training session. Sensitivity was 0.46 (95%CI 0.34-0.59), specificity was 0.83 (95%CI 0.72-0.91) and the area under the curve was 0.65 (95%CI 0.56-0.74) (p < 0.01). The analysis of performance data from cycle ergometer is a potentially useful method to predict the occurrence of exacerbation.


Asunto(s)
Tolerancia al Ejercicio/fisiología , Volumen Espiratorio Forzado/fisiología , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Enfermedad Pulmonar Obstructiva Crónica/rehabilitación , Anciano , Progresión de la Enfermedad , Disnea/diagnóstico , Disnea/etiología , Disnea/fisiopatología , Prueba de Esfuerzo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Enfermedad Pulmonar Obstructiva Crónica/complicaciones , Curva ROC , Estudios Retrospectivos , Factores de Riesgo
10.
COPD ; 16(1): 30-36, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30821515

RESUMEN

We previously showed that functional electrical stimulation during cycle ergometry (FES-cycling) increased oxygen consumption (VO2), indicating that metabolism during exercise was increased. However, the effects on muscle oxygenation have never been studied. The aim of this secondary analysis was to analyse changes in muscle oxygenation during an FES-cycling session. Eight patients with chronic obstructive pulmonary disease who were participating in a pulmonary rehabilitation programme were enrolled. Each participant carried out 30 minutes of cycle ergometry with a constant load at 50% of peak oxygen uptake, either (i) with FES or (ii) without (Placebo-FES). Oxygenation of the vastus lateralis (VL) muscle over time was measured using near-infrared spectroscopy (NIRS) during both sessions. External power output on the cycle ergometer was the same in both conditions. There were no differences in dyspnoea between the groups, although the concentrations of deoxygenated haemoglobin and myoglobin (deoxy(Hb + Mb)) in the VL were significantly greater during Placebo-FES than FES-Cycling (respectively +212 ± 65% vs. +84 ± 29%; p < 0.001), as was the decrease in muscle oxygen saturation (StO2) (p < 0.001). When adjusted for VO2, there was a greater increase over time in the deoxy(Hb + Mb)/VO2 ratio during Placebo-FES than FES-cycling (p < 0.0001). FES-cycling could be a useful strategy to decrease muscular deoxy(Hb + Mb) and limit decreases in muscle StO2, however this should be confirmed in larger studies.


Asunto(s)
Estimulación Eléctrica , Ejercicio Físico/fisiología , Oxígeno/metabolismo , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Músculo Cuádriceps/metabolismo , Anciano , Ergometría , Terapia por Ejercicio/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Mioglobina/metabolismo , Consumo de Oxígeno , Enfermedad Pulmonar Obstructiva Crónica/rehabilitación
11.
COPD ; 16(5-6): 368-377, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31656111

RESUMEN

There is a growing body of evidence supporting the use of nasal high flow (NHF) to treat acute respiratory failure, particularly in Chronic Obstructive Pulmonary Disease (COPD) patients. Conversely, there are sparse data evaluating its effects in stable COPD patients.We identified randomized controlled trial comparing the effects of delivering air or oxygen via NHF, compared with delivering the same gas without NHF, in stable COPD patients through a systematic search using MEDLINE, CENTRAL, Science Direct, and others sources until January 2019. Study selection, data extraction and assessment of the risk of bias (using the Cochrane Risk of Bias tool) was performed by two independent authors.We included 6 studies (339 participants). Our meta-analysis showed a significant reduction of arterial carbon dioxide pressure (PaCO2) at long (two studies, MD -3 mmHg, [95% Confidence interval (CI) -4 to -2]) and short-term (two studies, MD -3 mmHg [95% CI -4 to -2]). NHF significantly improved quality of life on the St George's Respiratory Questionnaire (two studies, MD -5 out of 100, [95% CI -8 to -2]). NHF significantly reduced the rate of acute exacerbation at 1 year (one study, rate ratio: 0.6, [95% CI 0.6 to 0.7]). NHF did not significantly improve exercise capacity, hospitalization rate or mortality, but improved breathing pattern.NHF reduced PaCO2, acute exacerbation and improved quality of life in stable COPD patients. Further long-term studies are needed to confirm the present results and provide more data on patient-centered outcome such as quality of life, exacerbation, hospitalization and mortality.


Asunto(s)
Enfermedad Pulmonar Obstructiva Crónica/terapia , Terapia Respiratoria/métodos , Cánula , Progresión de la Enfermedad , Humanos , Enfermedad Pulmonar Obstructiva Crónica/diagnóstico , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Ensayos Clínicos Controlados Aleatorios como Asunto , Terapia Respiratoria/instrumentación , Resultado del Tratamiento
12.
Crit Care ; 22(1): 110, 2018 04 27.
Artículo en Inglés | MEDLINE | ID: mdl-29703223

RESUMEN

BACKGROUND: In the ICU, out-of-bed rehabilitation is often delayed and in-bed exercises are generally low-intensity. Since the majority of rehabilitation is carried out in bed, it is essential to carry out the exercises that have the highest intensity. The aim of this study was to compare the physiological effects of four common types of bed exercise in intubated, sedated patients confined to bed in the ICU, in order to determine which was the most intensive. METHODS: A randomised, single-blind, placebo-controlled crossover trial was carried out to evaluate the effects of four bed exercises (passive range of movements (PROM), passive cycle-ergometry, quadriceps electrical stimulation and functional electrical stimulation (FES) cycling) on cardiac output. Each exercise was carried out for ten minutes in ventilated, sedated patients. Cardiac output was recorded using cardiac Doppler ultrasound. The secondary aims were to evaluate right heart function and pulmonary and systemic artery pressures during the exercises, and the microcirculation of the vastus lateralis muscle. RESULTS: The results were analysed in 19 patients. FES cycling was the only exercise that increased cardiac output, with a mean increase of 1 L/min (15%). There was a concomitant increase in muscle oxygen uptake, suggesting that muscle work occurred. FES cycling thus constitutes an effective early rehabilitation intervention. No muscle or systemic effects were induced by the passive techniques. CONCLUSION: Most bed exercises were low-intensity and induced low levels of muscle work. FES cycling was the only exercise that increased cardiac output and produced sufficient intensity of muscle work. Longer-term studies of the effect of FES cycling on functional outcomes should be carried out. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02920684 . Registered on 30 September 2016. Prospectively registered.


Asunto(s)
Gasto Cardíaco/fisiología , Terapia por Ejercicio/métodos , Anciano , Anciano de 80 o más Años , Estudios Cruzados , Estimulación Eléctrica/métodos , Terapia por Ejercicio/estadística & datos numéricos , Femenino , Humanos , Unidades de Cuidados Intensivos/organización & administración , Masculino , Persona de Mediana Edad , Placebos , Músculo Cuádriceps/fisiopatología , Rango del Movimiento Articular , Respiración Artificial/métodos , Método Simple Ciego , Ultrasonografía/métodos
13.
Arch Phys Med Rehabil ; 99(8): 1454-1461, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29524398

RESUMEN

OBJECTIVE: To evaluate the effect of quadriceps functional electrical stimulation (FES)-cycling on exertional oxygen uptake (V˙o2) compared with placebo FES-cycling in patients with chronic obstructive pulmonary disease (COPD). DESIGN: A randomized, single-blind, placebo-controlled crossover trial. SETTING: Pulmonary rehabilitation department. PARTICIPANTS: Consecutive patients (N=23) with COPD Global Initiative for Chronic Obstructive Lung Disease stage 2, 3, or 4 (mean forced expiratory volume during the first second, 1.4±0.4L [50.3% predicted]) who had recently begun a respiratory rehabilitation program. INTERVENTION: Two consecutive 30-minute sessions were carried out at a constant load with active and placebo FES-cycling. MAIN OUTCOME MEASURES: The primary outcome was mean V˙o2 during the 30-minute exercise session. The secondary outcomes were respiratory gas exchange and hemodynamic parameters averaged over the 30-minute endurance session. Lactate values, dyspnea, and perceived muscle fatigue were evaluated at the end of the sessions. RESULTS: FES-cycling increased the physiological response more than the placebo, with a greater V˙o2 achieved of 36.6mL/min (95% confidence interval [CI], 8.9-64.3mL/min) (P=.01). There was also a greater increase in lactate after FES-cycling (+1.5mmol/L [95% CI, .05-2.9mmol/L]; P=.01). FES-cycling did not change dyspnea or muscle fatigue compared with the placebo condition. CONCLUSIONS: FES-cycling effectively increased exercise intensity in patients with COPD. Further studies should evaluate longer-term FES-cycling rehabilitation programs.


Asunto(s)
Terapia por Estimulación Eléctrica/métodos , Extremidad Inferior/fisiopatología , Consumo de Oxígeno/fisiología , Esfuerzo Físico/fisiología , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Enfermedad Pulmonar Obstructiva Crónica/terapia , Estudios Cruzados , Femenino , Humanos , Masculino , Persona de Mediana Edad , Método Simple Ciego , Resultado del Tratamiento
14.
Arch Phys Med Rehabil ; 99(8): 1462-1470, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29457998

RESUMEN

OBJECTIVE: To assess the additional effect of a home-based neuromuscular electrical stimulation (NMES) program as an add-on to pulmonary rehabilitation (PR), on functional capacity in subjects with chronic obstructive pulmonary disease (COPD). DESIGN: Single-blind, multicenter randomized trial. SETTING: Three PR centers. PARTICIPANTS: Subjects with severe to very severe COPD (N=73; median forced expiratory volume in 1 second, 1L (25th-75th percentile, 0.8-1.4L) referred for PR. Twenty-two subjects discontinued the study, but only 1 dropout was related to the intervention (leg discomfort). INTERVENTION: Subjects were randomly assigned to either PR plus quadricipital home-based NMES (35Hz, 30min, 5 time per week) or PR without NMES for 8 weeks. MAIN OUTCOME MEASURE: The 6-minute walk test (6MWT) was used to assess functional capacity. RESULTS: Eighty-two percent of the scheduled NMES sessions were performed. In the whole sample, there were significant increases in the distance walked during the 6MWT (P<.01), peak oxygen consumption (P=.02), maximal workload (P<.01), modified Medical Research Council dyspnea scale (P<.01), and Saint George's Respiratory Questionnaire total score (P=.01). There was no significant difference in the magnitude of change for any outcome between groups. CONCLUSIONS: Home-based NMES as an add-on to PR did not result in further improvements in subjects with severe to very severe COPD; moreover, it may have been a burden for some patients.


Asunto(s)
Terapia por Estimulación Eléctrica/métodos , Servicios de Atención a Domicilio Provisto por Hospital , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Enfermedad Pulmonar Obstructiva Crónica/terapia , Femenino , Francia , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Método Simple Ciego , Resultado del Tratamiento , Prueba de Paso
15.
COPD ; 14(3): 293-297, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28388274

RESUMEN

Pulmonary rehabilitation (PR) improves outcomes in patients with chronic obstructive pulmonary disease (COPD). Optimal assessment includes cardiopulmonary exercise testing (CPET), but consultations are limited. Field tests could be used to individualize PR instead of CPET. The six-minute stepper test (6MST) is easy to set up and its sensitivity and reproducibility have previously been reported in patients with COPD. The aim of this study was to develop a prediction equation to set intensity in patients attending PR, based on the 6MST. The following relationships were analyzed: mean heart rate (HR) during the first (HR1-3) and last (HR4-6) 3 minutes of the 6MST and HR at the ventilatory threshold (HRvt) from CPET; step count at the end of the 6MST and workload at the Ventilatory threshold (VT) (Wvt); and forced expiratory volume in 1 second and step count during the 6MST. This retrospective study included patients with COPD referred for PR who underwent CPET, pulmonary function evaluations and the 6MST. Twenty-four patients were included. Prediction equations were HRvt = 0.7887 × HR1-3 + 20.83 and HRvt = 0.6180 × HR4-6 + 30.77. There was a strong correlation between HR1-3 and HR4-6 and HRvt (r = 0.69, p < 0.001 and r = 0.57, p < 0.01 respectively). A significant correlation was also found between step count and LogWvt (r = 0.63, p < 0.01). The prediction equation was LogWvt = 0.001722 × step count + 1.248. The 6MST could be used to individualize aerobic training in patients with COPD. Further prospective studies are needed to confirm these results.


Asunto(s)
Acondicionamiento Físico Humano/métodos , Esfuerzo Físico/fisiología , Enfermedad Pulmonar Obstructiva Crónica/rehabilitación , Prueba de Paso , Anciano , Femenino , Volumen Espiratorio Forzado , Frecuencia Cardíaca , Humanos , Masculino , Persona de Mediana Edad , Acondicionamiento Físico Humano/fisiología , Valor Predictivo de las Pruebas , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Estudios Retrospectivos , Factores de Tiempo
16.
Crit Care ; 20(1): 231, 2016 07 31.
Artículo en Inglés | MEDLINE | ID: mdl-27475524

RESUMEN

BACKGROUND: Diaphragm dysfunction in mechanically ventilated patients is associated with poor outcome. Maximal inspiratory pressure (MIP) can be used to evaluate inspiratory muscle function. However, it is unclear whether respiratory weakness is independently associated with long-term mortality. The aim of this study was to determine if low MIP is independently associated with one-year mortality. METHODS: We conducted a prospective observational cohort study in an 18-bed ICU. Adults requiring at least 24 hours of mechanical ventilation with scheduled extubation and no evidence of pre-existing muscle weakness underwent MIP evaluation just before extubation. Patients were divided into two groups: low MIP (MIP ≤30 cmH2O) and high MIP (MIP >30 cmH2O). Mortality was recorded for one year after extubation. For the survival analysis, the effect of low MIP was assessed using the log-rank test. The independent effect of low MIP on post mechanical ventilation mortality was analyzed using a multivariable Cox regression model. RESULTS: One hundred and twenty-four patients underwent MIP evaluation (median age 66 years (25(th)-75(th) percentile 56-74), Simplified Acute Physiology Score (SAPS) 2 = 45 (33-57), duration of mechanical ventilation 7 days (4-10)). Fifty-four percent of patients had low MIP. One-year mortality was 31 % (95 % CI 0.21, 0.43) in the low MIP group and 7 % (95 % CI 0.02, 0.16) in the high MIP group. After adjustment for SAPS 2 score, body mass index and duration of mechanical ventilation, low MIP was independently associated with one-year mortality (hazard ratio 4.41, 95 % CI 1.5, 12.9, p = 0.007). Extubation failure was also associated with low MIP (relative risk 3.0, 95 % CI 1, -9.6; p = 0.03) but tracheostomy and ICU length of stay were not. CONCLUSION: Low MIP is frequent in patients on mechanical ventilation and is an independent risk factor for long-term mortality in ICU patients requiring mechanical ventilation. MIP is easily evaluated at the patient's bedside. TRIAL REGISTRATION: This study was retrospectively registered in www.clinicaltrials.gov (NCT02363231) in February 2015.


Asunto(s)
Mortalidad Hospitalaria , Debilidad Muscular/etiología , Respiración Artificial/efectos adversos , Músculos Respiratorios/fisiopatología , Anciano , Anciano de 80 o más Años , Femenino , Francia/epidemiología , Humanos , Unidades de Cuidados Intensivos/organización & administración , Unidades de Cuidados Intensivos/estadística & datos numéricos , Tiempo de Internación , Masculino , Presiones Respiratorias Máximas , Persona de Mediana Edad , Debilidad Muscular/epidemiología , Debilidad Muscular/fisiopatología , Estudios Prospectivos , Curva ROC , Respiración Artificial/estadística & datos numéricos , Músculos Respiratorios/anomalías , Músculos Respiratorios/metabolismo , Estudios Retrospectivos , Factores de Riesgo , Desconexión del Ventilador/mortalidad
19.
Healthcare (Basel) ; 12(4)2024 Feb 08.
Artículo en Inglés | MEDLINE | ID: mdl-38391811

RESUMEN

The implementation of Enhanced Recovery After Surgery (ERAS) is a challenge for healthcare systems, especially in case of patients undergoing major surgery. Despite a proven significant reduction in postoperative complications and hospital lengths of stay, ERAS protocols are inconsistently used in real-world practice, and barriers have been poorly described in a cohort comprising medical and paramedical professionals. This study aims to assess the proportion of French healthcare providers who practiced ERAS and to identify barriers to its implementation amongst those surveyed. We conducted a prospective cross-sectional study to survey healthcare providers about their practice of ERAS using an online questionnaire. Healthcare providers were contacted through hospital requests, private hospital group requests, professional corporation requests, social networks, and personal contacts. The questionnaire was also designed to explore barriers to ERAS implementation. Identified barriers were allocated by two independent assessors to one of the fourteen domains of the Theoretical Domains Framework (TDF), which is an integrative framework based on behavior change theories that can be used to identify issues relating to evidence on the implementation of best practice in healthcare settings. One hundred and fifty-three French healthcare providers answered the online questionnaire (76% female, median age 35 years (IQR: 29 to 48)). Physiotherapists, nurses, and dieticians were the most represented professions (31.4%, 24.2%, and, 14.4%, respectively). Amongst those surveyed, thirty-one practiced ERAS (20.3%, 95%CI: 13.9 to 26.63). Major barriers to ERAS practice were related to the "Environmental context and resources" domain (57.6%, 95%CI: 49.5-65.4), e.g., lack of professionals, funding, and coordination, and the "Knowledge" domain (52.8%, 95%CI: 44.7-60.8), e.g., ERAS unawareness. ERAS in major surgery is seldom practiced in France due to the unfavorable environment (i.e., logistics issues, and lack of professionals and funding) and a low rate of procedure awareness. Future studies should focus on devising and assessing strategies (e.g., education and training, collaboration, institutional support, the development of healthcare networks, and leveraging telehealth and technology) to overcome these barriers, thereby promoting the wider implementation of ERAS.

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