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Lower Respiratory Tract Infections in Pediatric Patients with Severe Neurological Impairments: Clinical Observations and Perspectives in a Palliative Care Unit. CHILDREN 2022; 9:children9060852. [PMID: 35740789 PMCID: PMC9221664 DOI: 10.3390/children9060852] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/02/2022] [Accepted: 06/06/2022] [Indexed: 11/29/2022]
Abstract
Pediatric palliative care (PPC) patients with a severe neurologic impairment (SNI) suffer considerable morbidity and increased mortality from lower respiratory tract infections (LRTIs). The indication and choice of antibiotic therapy for bacterial LRTIs are often challenging given the lack of evidence-based treatment recommendations for this vulnerable patient population. We conducted an observational study before the SARS-CoV-2 pandemic in an eight-bed pediatric palliative care inpatient unit. During two years of surveillance, we diagnosed and treated 33 cases of a bacterial LRTI in patients with an SNI; 5 patients were hospitalized with an LRTI more than once. Two patients died from complications due to LRTIs during hospitalization. Three patients (15%) were colonized with multidrug-resistant organisms. An initial antibiotic treatment failed in one-third of the cases; a successful therapy of the LRTI was achieved with broad-spectrum and extended-spectrum penicillins (n = 13; in combination with β-lactamase inhibitors for n = 5 cases), cephalosporins (n = 13: n = 4 second-generation and n = 9 third-generation cephalosporins; in combination with other substances for n = 5 cases), ciprofloxacin (n = 3), and meropenem plus vancomycin (n = 2) or meropenem (n = 1). A respiratory specimen was obtained in 66.7% of cases with P. aeruginosa, E. coli, and K. pneumoniae accounting for the majority of the detected species. In most cases, there was no definite confirmation that the LRTI was caused by the species detected. The diagnostics and treatment of bacterial LRTIs in PPC patients with an SNI are challenging. The lack of controlled studies and the heterogeneity of this population often necessitate an individual approach. This lack of controlled studies may partly be compensated by a set of diagnostic and antibiotic stewardship criteria.
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Cherchi C, Chiarini Testa MB, Deriu D, Schiavino A, Petreschi F, Ullmann N, Paglietti MG, Cutrera R. All You Need Is Evidence: What We Know About Pneumonia in Children With Neuromuscular Diseases. Front Pediatr 2021; 9:625751. [PMID: 34540761 PMCID: PMC8441014 DOI: 10.3389/fped.2021.625751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 08/04/2021] [Indexed: 11/13/2022] Open
Abstract
Neuromuscular diseases may involve all major respiratory muscles groups including inspiratory, expiratory, and bulbar muscles. Respiratory complications are the major cause of morbidity and mortality. Pneumonia represents a frequent cause of morbidity in children with neuromuscular disease. The aim of this review is to collect knowledge about pneumonia in children with neuromuscular diseases. Pneumonia usually follows viral respiratory infections of the upper respiratory tract, due to the combination of an increased amount of nasal and oral secretions and an impairment of the cough efficiency and of the clearance of secretions due to the muscle weakness, further compromised by the infection itself. The accumulation of bronchial secretions leads to atelectasis and promote bacterial infection. Moreover, dysfunction of swallowing mechanism exposes these children to the risk of developing aspiration pneumonia. However, etiology of viral and bacterial respiratory infection in these patients is still poorly studied.
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Affiliation(s)
- Claudio Cherchi
- Pediatric Pulmonology and Respiratory Intermediate Care Unit, Sleep and Long Term Ventilation Unit, Academic Department of Pediatrics (DPUO), Pediatric Hospital "Bambino Gesù" Research Institute, Rome, Italy.,Rare Diseases and Medical Genetics Unit, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
| | - Maria B Chiarini Testa
- Pediatric Pulmonology and Respiratory Intermediate Care Unit, Sleep and Long Term Ventilation Unit, Academic Department of Pediatrics (DPUO), Pediatric Hospital "Bambino Gesù" Research Institute, Rome, Italy.,Rare Diseases and Medical Genetics Unit, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
| | - Daniele Deriu
- Department of Pediatrics, University of Rome Tor Vergata, Rome, Italy
| | - Alessandra Schiavino
- Pediatric Pulmonology and Respiratory Intermediate Care Unit, Sleep and Long Term Ventilation Unit, Academic Department of Pediatrics (DPUO), Pediatric Hospital "Bambino Gesù" Research Institute, Rome, Italy.,Rare Diseases and Medical Genetics Unit, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
| | - Francesca Petreschi
- Pediatric Pulmonology and Respiratory Intermediate Care Unit, Sleep and Long Term Ventilation Unit, Academic Department of Pediatrics (DPUO), Pediatric Hospital "Bambino Gesù" Research Institute, Rome, Italy.,Rare Diseases and Medical Genetics Unit, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
| | - Nicola Ullmann
- Pediatric Pulmonology and Respiratory Intermediate Care Unit, Sleep and Long Term Ventilation Unit, Academic Department of Pediatrics (DPUO), Pediatric Hospital "Bambino Gesù" Research Institute, Rome, Italy.,Rare Diseases and Medical Genetics Unit, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
| | - Maria G Paglietti
- Pediatric Pulmonology and Respiratory Intermediate Care Unit, Sleep and Long Term Ventilation Unit, Academic Department of Pediatrics (DPUO), Pediatric Hospital "Bambino Gesù" Research Institute, Rome, Italy.,Rare Diseases and Medical Genetics Unit, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
| | - Renato Cutrera
- Pediatric Pulmonology and Respiratory Intermediate Care Unit, Sleep and Long Term Ventilation Unit, Academic Department of Pediatrics (DPUO), Pediatric Hospital "Bambino Gesù" Research Institute, Rome, Italy.,Rare Diseases and Medical Genetics Unit, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
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Effect of Lung Volume Recruitment on Pulmonary Function in Progressive Childhood-Onset Neuromuscular Disease: A Systematic Review. Arch Phys Med Rehabil 2020; 102:976-983. [PMID: 32882219 DOI: 10.1016/j.apmr.2020.07.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 07/24/2020] [Accepted: 07/29/2020] [Indexed: 11/22/2022]
Abstract
OBJECTIVES The focus of this systematic review was to consider whether lung volume recruitment (LVR) has an effect on pulmonary function test parameters in individuals with progressive childhood-onset neuromuscular diseases. The review was registered on PROSPERO (No. CRD42019119541). DATA SOURCES A systematic search of the CINAHL, MEDLINE, AMED, EMCARE, Scopus, and Open Grey databases was undertaken in January 2019 considering LVR in the respiratory management of childhood-onset neuromuscular diseases. STUDY SELECTION Studies were included if either manual resuscitator bags or volume-controlled ventilators were used to perform LVR with participants older than 6 years of age. Critical appraisal tools from the Joanna Briggs Institute were used to assess the quality of studies. Nine studies were identified, 6 of which were of sufficient quality to be included in the review. DATA EXTRACTION Data extraction used a tool adapted from the Cochrane effective practice and organization of care group. DATA SYNTHESIS Results were compiled using a narrative synthesis approach focused on peak cough flow, forced vital capacity, and maximum inspiratory capacity outcomes. CONCLUSIONS Limited evidence suggests an immediate positive effect of LVR on peak cough flow and a potential long-term effect on the rate of forced vital capacity decline. Considering the accepted correlation between forced vital capacity and morbidity, this review suggests that LVR be considered for individuals with childhood-onset neuromuscular diseases once forced vital capacity starts to deteriorate. This review is limited by small sample sizes and the overall paucity of evidence considering LVR in this population group. Controlled trials with larger sample sizes are urgently needed.
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Martínez-Arnau FM, Buigues C, Fonfría-Vivas R, Cauli O. Respiratory Muscle Strengths and Their Association with Lean Mass and Handgrip Strengths in Older Institutionalized Individuals. J Clin Med 2020; 9:E2727. [PMID: 32847002 PMCID: PMC7563242 DOI: 10.3390/jcm9092727] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/14/2020] [Accepted: 08/19/2020] [Indexed: 12/24/2022] Open
Abstract
The study of reduced respiratory muscle strengths in relation to the loss of muscular function associated with ageing is of great interest in the study of sarcopenia in older institutionalized individuals. The present study assesses the association between respiratory muscle parameters and skeletal mass content and strength, and analyzes associations with blood cell counts and biochemical parameters related to protein, lipid, glucose and ion profiles. A multicenter cross-sectional study was performed among patients institutionalized in nursing homes. The respiratory muscle function was evaluated by peak expiratory flow, maximal respiratory pressures and spirometry parameters, and skeletal mass function and lean mass content with handgrip strength, walking speed and bioimpedance, respectively. The prevalence of reduced respiratory muscle strength in the sample ranged from 37.9% to 80.7%. Peak expiratory flow significantly (p < 0.05) correlated to handgrip strength and gait speed, as well as maximal inspiratory pressure (p < 0.01). Maximal expiratory pressure significantly (p < 0.01) correlated to handgrip strength. No correlation was obtained with muscle mass in any of parameters related to reduced respiratory muscle strength. The most significant associations within the blood biochemical parameters were observed for some protein and lipid biomarkers e.g., glutamate-oxaloacetate transaminase (GOT), urea, triglycerides and cholesterol. Respiratory function muscle parameters, peak expiratory flow and maximal respiratory pressures were correlated with reduced strength and functional impairment but not with lean mass content. We identified for the first time a relationship between peak expiratory flow (PEF) values and GOT and urea concentrations in blood which deserves future investigations in order to manage these parameters as a possible biomarkers of reduced respiratory muscle strength.
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Affiliation(s)
- Francisco Miguel Martínez-Arnau
- Department of Physiotherapy, University of Valencia, 46010 Valencia, Spain;
- Frailty and Cognitive Impairment Research Group (FROG), University of Valencia, 46010 Valencia, Spain; (C.B.); (R.F.-V.)
| | - Cristina Buigues
- Frailty and Cognitive Impairment Research Group (FROG), University of Valencia, 46010 Valencia, Spain; (C.B.); (R.F.-V.)
- Department of Nursing, University of Valencia, 46010 Valencia, Spain
| | - Rosa Fonfría-Vivas
- Frailty and Cognitive Impairment Research Group (FROG), University of Valencia, 46010 Valencia, Spain; (C.B.); (R.F.-V.)
- Department of Nursing, University of Valencia, 46010 Valencia, Spain
| | - Omar Cauli
- Frailty and Cognitive Impairment Research Group (FROG), University of Valencia, 46010 Valencia, Spain; (C.B.); (R.F.-V.)
- Department of Nursing, University of Valencia, 46010 Valencia, Spain
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Sanz-Requena R, Martínez-Arnau FM, Pablos-Monzó A, Flor-Rufino C, Barrachina-Igual J, García-Martí G, Martí-Bonmatí L, Pérez-Ros P. The Role of Imaging Biomarkers in the Assessment of Sarcopenia. Diagnostics (Basel) 2020; 10:diagnostics10080534. [PMID: 32751452 PMCID: PMC7460125 DOI: 10.3390/diagnostics10080534] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/14/2020] [Accepted: 07/29/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The diagnosis of sarcopenia through clinical assessment has some limitations. The literature advises studies that include objective markers along with clinical assessment in order to improve the sensitivity and specificity of current diagnostic criteria. The decrease of muscle quality precedes the loss of quantity, so we studied the role magnetic resonance imaging biomarkers as indicators of the quantity and quality of muscle in sarcopenia patients. METHODS a cross-sectional analysis was performed to analyze what MR-derived imaging parameters correlate better with sarcopenia diagnostic criteria in women of 70 years of age and over (independent walking and community-dwelling women who were sarcopenic in accordance with EWGSOP criteria with muscle mass adjusted to Spanish population were chosen). RESULTS The study included 26 women; 81 ± 8 years old. A strong correlation was obtained between cineanthropometric variables (BMI; thigh perimeter and fat mass) and imaging biomarkers (muscle/fat ratio, fatty infiltration, muscle T2*, water diffusion coefficient, and proton density fat fraction) with coefficients around 0.7 (absolute value). CONCLUSIONS Knowing the correlation of clinical parameters and imaging-derived muscle quality indicators can help to identify older women at risk of developing sarcopenia at an early stage. This may allow taking preventive actions to decrease disability, morbidity, and mortality in sarcopenia patients.
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Affiliation(s)
- Roberto Sanz-Requena
- Radiology Department, Hospital Quironsalud Valencia, 46010 Valencia, Spain; (R.S.-R.); (G.G.-M.); (L.M.-B.)
| | - Francisco Miguel Martínez-Arnau
- Department of Physiotherapy, Universitat de Valencia, 46010 Valencia, Spain;
- Frailty and Cognitive Impairment Research Group (FROG), University of Valencia, 46010 Valencia, Spain
- Correspondence: ; Tel.: +34-963-983853 (ext. 51227)
| | - Ana Pablos-Monzó
- Faculty of Physical Activity and Sport Sciences, Universidad Católica de Valencia San Vicente Mártir, 46900 Valencia, Spain;
| | | | | | - Gracián García-Martí
- Radiology Department, Hospital Quironsalud Valencia, 46010 Valencia, Spain; (R.S.-R.); (G.G.-M.); (L.M.-B.)
| | - Luis Martí-Bonmatí
- Radiology Department, Hospital Quironsalud Valencia, 46010 Valencia, Spain; (R.S.-R.); (G.G.-M.); (L.M.-B.)
| | - Pilar Pérez-Ros
- Nursing Department, Universidad Católica de Valencia San Vicente Mártir, 46007 Valencia, Spain;
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Won YH, Cho YS, Joo SY, Seo CH. The Effect of a Pulmonary Rehabilitation on Lung Function and Exercise Capacity in Patients with Burn: A Prospective Randomized Single-Blind Study. J Clin Med 2020; 9:jcm9072250. [PMID: 32679866 PMCID: PMC7409013 DOI: 10.3390/jcm9072250] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/07/2020] [Accepted: 07/14/2020] [Indexed: 12/13/2022] Open
Abstract
We performed pulmonary function (PF) tests and factors affecting PF evaluation in 120 patients with inhalation injury to evaluate the effects of pulmonary rehabilitation (PR) in burn patients with inhalation injury. Patients were randomized into pulmonary rehabilitation (PR) group and conventional rehabilitation (CON) group. PF tests, including forced vital capacity (FVC), 1-s forced expiratory volume FEV1), maximum voluntary ventilation (MVV), and respiratory muscles strength (maximal expiratory pressure (MEP) and maximal inspiratory pressure (MIP)), were measured by mouth pressure meter in the sitting position. Diffusing capacity for carbon monoxide (DLco) was determined by the single-breath carbon monoxide technique. Peak cough flow (PCF) was measured by a peak flow meter. Diaphragmatic mobility (DM) was evaluated on anteroposterior fluoroscopy. All evaluations were performed in all groups at baseline and after 12 weeks. There were no differences in evaluations between the PR group and CON group before the intervention. There were significant improvements in the PCF and MIP (%) changes, taken before and after rehabilitation in the PR group, compared with the changes in the CON group (p = 0.01, and p = 0.04). There were no significant changes in the other parameters in the PR group compared with the changes in the CON group (p > 0.05). There were significant differences in DLco (%), MIP, MIP (%), and DM between the PR group and the CON group (p = 0.02, p = 0.005, and p = 0.001) after 12 weeks of rehabilitation. There were no differences between the PR group and CON group after 12 weeks rehabilitation in the other parameters (p > 0.05). PR for patients with major burns and smoke inhalation induced improved PCF, MIP, MIP (%), DLco (%), and DM. These results show that PR should be a fundamental component of the treatment program for patients with burns.
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Affiliation(s)
- Yu Hui Won
- Department of Physical Medicine and Rehabilitation, Research Institute of Clinical Medicine of Jeonbuk National University–Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907 Korea;
| | - Yoon Soo Cho
- Department of Rehabilitation Medicine, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, 94-200 Yeongdeungpo-Dong Yeongdeungpo-Ku, Seoul 07247, Korea; (Y.S.C.); (S.Y.J.)
| | - So Young Joo
- Department of Rehabilitation Medicine, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, 94-200 Yeongdeungpo-Dong Yeongdeungpo-Ku, Seoul 07247, Korea; (Y.S.C.); (S.Y.J.)
| | - Cheong Hoon Seo
- Department of Rehabilitation Medicine, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, 94-200 Yeongdeungpo-Dong Yeongdeungpo-Ku, Seoul 07247, Korea; (Y.S.C.); (S.Y.J.)
- Correspondence: ; Tel.: +82-2-2639-5738; Fax: +82-2-2635-7820
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Won YH, Cho YS, Kim DH, Joo SY, Seo CH. Relation Between Low Pulmonary Function and Skeletal Muscle Index in Burn Patients with Major Burn Injury and Smoke Inhalation: A Retrospective Study. J Burn Care Res 2020; 41:695-699. [DOI: 10.1093/jbcr/iraa015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
This report is to evaluate the relation between pulmonary function, respiratory muscle strength, and skeletal muscle index (SMI) in patients with major burn injury and smoke inhalation. A total of 54 inhalation burn patients were analyzed. Appendicular skeletal muscle mass (ASM) is a sum of the muscle mass of both arms and legs. SMI is adjusting for body size using body mass index (ASM/BMI). Spirometry was performed to evaluate pulmonary function. Pulmonary function tests included peak cough flow (PCF), forced vital capacity (FVC), 1-s forced expiratory volume (FEV1), forced expiratory flow rate between 25 and 75% of the FVC (FEF 25–75), FEV1/FVC ratio expressed as a percentage (FEV1/FVC %), peak expiratory flow (PEF), and maximum voluntary ventilation. Expiratory and inspiratory muscle strengths were measured. The relations between pulmonary function, respiratory muscle strength, and SMI were investigated. SMI showed significant correlations with PCF (r = 0.34 and P = 0.02), FVC (r = 0.55 and P < 0.001), FEV1 (r = 0.45 and P = 0.001), and PEF (r = 0.35 and P = 0.01). In multiple regression analysis including age, TBSA, duration of mechanical ventilation, and postburn days studied, SMI was significantly related to FVC, PCF, FEV1, FEV1/FVC, and PEF (P < 0.001, P = 0.02, P = 0.001, P = 0.04, and P = 0.03). Pulmonary function tests are significantly related to SMI in patients with major burn injury and smoke inhalation. Intensive treatment on muscle wasting in patients with burn injury has been proven to be important for improving pulmonary functions.
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Affiliation(s)
- Yu Hui Won
- Department of Physical Medicine and Rehabilitation, Research Institute of Clinical Medicine of Chonbuk National University–Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - Yoon Soo Cho
- Department of Rehabilitation Medicine, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea
| | - Dong Hyun Kim
- Department of Rehabilitation Medicine, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - So Young Joo
- Department of Rehabilitation Medicine, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea
| | - Cheong Hoon Seo
- Department of Rehabilitation Medicine, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea
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Lalmolda C, Prados H, Mateu G, Noray M, Pomares X, Luján M. Titration of Mechanical Insufflation-Exsufflation Optimal Pressure Combinations in Neuromuscular Diseases by Flow/Pressure Waveform Analysis. Arch Bronconeumol 2019; 55:246-251. [PMID: 30598235 DOI: 10.1016/j.arbres.2018.10.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 09/21/2018] [Accepted: 10/19/2018] [Indexed: 11/19/2022]
Abstract
INTRODUCTION The aim of this study was to assess several air-pressure settings for MI-E to determine their effect on peak cough flow (PCF), and to compare the best pressures with those are more common used in the literature (±40cmH2O) in patients with neuromuscular disorders (NMD). METHODS Adults with NMD in whom MI-E was indicated were recruited. Assisted PCF was measured by an external pneumotachograph. The protocol included 9 PCF measures per patient: 1 baseline (non-assisted), 4 with increasing inspiratory pressures without negative pressure (10, 20, 30 and 40cmH2O or maximum tolerated), and then 4 adding expiratory pressures (-10, -20, -30 and -40cmH2O or maximum tolerated) with maximum inspiratory pressure previously achieved. RESULTS Twenty one patients were included, 61% with amyotrophic lateral sclerosis (ALS). Mean PCFs with recommended pressures (±40cmH2O) were lower than the scored in the individualized steps of the titration protocol (197.7±67l/min vs 214.2±60l/min, p<0.05). Regarding subgroups, mean PCFmax values in ALS patients with bulbar symptoms were significantly higher than those achieved with recommended pressures (163.6±80 vs 189±66l/min, p<0.05). CONCLUSION The PCFmax obtained with the protocol did not always match the recommended settings. It may be advisable to perform MI-E titration assessed by non-invasive PCF monitoring in patients with NMD, especially in ALS with bulbar involvement to improve the therapy detecting airway collapse induced by high pressures.
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Affiliation(s)
- Cristina Lalmolda
- Fundación Parc Tauli, Sabadell, Barcelona, Spain; Centro de Investigación Biomédica en Red, enfermedades respiratorias, CIBERES, Barcelona, Spain.
| | - Hector Prados
- Hospital Universitario Parc Tauli, Sabadell, Barcelona, Spain
| | - Georgina Mateu
- Hospital Universitario Parc Tauli, Sabadell, Barcelona, Spain
| | - Mariona Noray
- Hospital Universitario Parc Tauli, Sabadell, Barcelona, Spain
| | - Xavier Pomares
- Fundación Parc Tauli, Sabadell, Barcelona, Spain; Centro de Investigación Biomédica en Red, enfermedades respiratorias, CIBERES, Barcelona, Spain; Hospital Universitario Parc Tauli, Sabadell, Barcelona, Spain
| | - Manel Luján
- Fundación Parc Tauli, Sabadell, Barcelona, Spain; Centro de Investigación Biomédica en Red, enfermedades respiratorias, CIBERES, Barcelona, Spain; Hospital Universitario Parc Tauli, Sabadell, Barcelona, Spain
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Kim NS. Correlation between grip strength and pulmonary function and respiratory muscle strength in stroke patients over 50 years of age. J Exerc Rehabil 2018; 14:1017-1023. [PMID: 30656164 PMCID: PMC6323340 DOI: 10.12965/jer.1836444.222] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 10/05/2018] [Indexed: 12/13/2022] Open
Abstract
Age-related skeletal muscle changes may impact respiratory muscle function, and low muscle mass is associated with low pulmonary function in older adults. Stroke not only causes weakness in the muscles of the upper and lower limbs, but it can also affect the respiratory system. This study aimed to investigate the relationships between grip strength and pulmonary function and respiratory muscle strength in stroke patients over 50 years of age. Fifty-one patients (68.69±10.40 years) who had been clinically diagnosed with ischemic or hemorrhagic stroke were included in this study. We measured these patients' forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1), peak expiratory flow (PEF), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), and hand grip strength. The data were analyzed using descriptive statistics and Pearson correlation analysis. Grip strength showed significant correlations with FVC (r=0.686, P=0.000), FEV1 (r=0.607, P=0.000), PEF (r=0.494, P=0.000), MIP (r=0.239, P=0.091), and MEP (r=0.348, P=0.012). This study demonstrated that grip strength is associated with pulmonary function and MEP in stroke patients over 50 years of age.
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Affiliation(s)
- Nan-Soo Kim
- Department of Physical Therapy, College of Health Sciences, Catholic University of Pusan, Busan, Korea
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Hines MT. Clinical Approach to Commonly Encountered Problems. EQUINE INTERNAL MEDICINE 2018. [PMCID: PMC7158300 DOI: 10.1016/b978-0-323-44329-6.00007-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Shin HI, Kim DK, Seo KM, Kang SH, Lee SY, Son S. Relation Between Respiratory Muscle Strength and Skeletal Muscle Mass and Hand Grip Strength in the Healthy Elderly. Ann Rehabil Med 2017; 41:686-692. [PMID: 28971054 PMCID: PMC5608677 DOI: 10.5535/arm.2017.41.4.686] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/01/2016] [Indexed: 12/31/2022] Open
Abstract
Objective To evaluate sarcopenic indices in relation to respiratory muscle strength (RMS) in elderly people. Methods This study included 65 volunteers over the age of 60 (30 men and 35 women). The skeletal muscle mass index (SMI) was measured using bioimpedance analysis. Limb muscle function was assessed by handgrip strength (HGS), the Short Physical Performance Battery (SPPB), and gait speed. RMS was addressed by maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) using a spirometer. The relationships between RMS and other sarcopenic indices were investigated using the Pearson correlation coefficients and multiple regression analysis adjusted for age, HGS, and SPPB. Results Both MIP and MEP were positively correlated with SMI (r=0.451 and r=0.388, respectively, p<0.05 in both). HGS showed a significant correlation with both MIP and MEP (r=0.560, p<0.01 and r=0.393, p<0.05, respectively). There was no significant correlation between gait speed and either MIP or MEP. The SPPB was positively correlated with MEP (r=0.436, p<0.05). In the multiple regression analysis, MIP was significantly associated with HGS and SMI (p<0.001 and p<0.05, respectively), while MEP was related only with HGS (p<0.05). Conclusion This study suggests that respiratory muscles, especially inspiratory muscles, are significantly related to limb muscle strength and skeletal muscle mass. The clinical significance of MIP and MEP should be further investigated with prospective studies.
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Affiliation(s)
- Hyun Iee Shin
- Department of Physical Medicine and Rehabilitation, Chung-Ang University College of Medicine, Seoul, Korea
| | - Don-Kyu Kim
- Department of Physical Medicine and Rehabilitation, Chung-Ang University College of Medicine, Seoul, Korea
| | - Kyung Mook Seo
- Department of Physical Medicine and Rehabilitation, Chung-Ang University College of Medicine, Seoul, Korea
| | - Si Hyun Kang
- Department of Physical Medicine and Rehabilitation, Chung-Ang University College of Medicine, Seoul, Korea
| | - Sang Yoon Lee
- Department of Physical Medicine and Rehabilitation, Chung-Ang University College of Medicine, Seoul, Korea
| | - Sunhan Son
- Department of Physical Medicine and Rehabilitation, Chung-Ang University College of Medicine, Seoul, Korea
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Kang SW, Choi WA, Cho HE, Lee JW, Park JH. Management of Ventilatory Insufficiency in Neuromuscular Patients Using Mechanical Ventilator Supported by the Korean Government. J Korean Med Sci 2016; 31:976-82. [PMID: 27247509 PMCID: PMC4853679 DOI: 10.3346/jkms.2016.31.6.976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 03/17/2016] [Indexed: 11/20/2022] Open
Abstract
Since 2001, financial support has been provided for all patients with neuromuscular disease (NMD) who require ventilatory support due to the paralysis of respiratory muscles in Korea. The purpose of this study was to identify ventilator usage status and appropriateness in these patients. We included 992 subjects with rare and incurable NMD registered for ventilator rental fee support. From 21 February 2011 to 17 January 2013, ventilator usage information, regular follow-up observation, and symptoms of chronic hypoventilation were surveyed by phone. Home visits were conducted for patients judged by an expert medical team to require medical examination. Abnormal ventilatory status was assessed by respiratory evaluation. Chronic respiratory insufficiency symptoms were reported by 169 of 992 subjects (17%), while 565 subjects (57%) did not receive regular respiratory evaluation. Ventilatory status was abnormal in 102 of 343 home-visit subjects (29.7%). Although 556 subjects (56%) reported 24-hour ventilator use, only 458 (46%) had an oxygen saturation monitoring device, and 305 (31%) performed an airstacking exercise. A management system that integrates ventilator usage monitoring, counselling and advice, and home visits for patients who receive ventilator support could improve the efficiency of the ventilator support project.
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Affiliation(s)
- Seong-Woong Kang
- Department of Rehabilitation Medicine, Pulmonary Rehabilitation Center, Gangnam Severance Hospital, Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Won Ah Choi
- Department of Rehabilitation Medicine, Pulmonary Rehabilitation Center, Gangnam Severance Hospital, Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Han Eol Cho
- Department of Rehabilitation Medicine, Pulmonary Rehabilitation Center, Gangnam Severance Hospital, Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Jang Woo Lee
- Department of Rehabilitation Medicine, Pulmonary Rehabilitation Center, Gangnam Severance Hospital, Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Hyun Park
- Department of Rehabilitation Medicine, Pulmonary Rehabilitation Center, Gangnam Severance Hospital, Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Seoul, Korea
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Vilozni D, Lavie M, Sarouk I, Levi Y, Alcaneses Ofek MR, Efrati O. Cough ability measurements and recurrent respiratory symptoms in individuals with Ataxia Telangiectasia. J Asthma 2015; 53:37-42. [PMID: 26364772 DOI: 10.3109/02770903.2015.1032304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Ataxia-Telangiectasia (A-T) individuals often present with respiratory muscle weakness, causing recurrent respiratory system infections, asthma-like symptoms, and chronic cough life-threatening events. The cough flow volume maneuver may reveal powerless airflow needed for efficient cough. The study aims to explore cough ability in relation to the flow/volume maneuver. METHODS Data collected retrospectively from clinical charts of 35 A-T patients (age 12.7 ± 4.9 years) included forced expiratory and cough flow/volume maneuvers performed on the same day. Analysis compared among the maneuvers matching indices, numbers of cough-spikes, flow rate decay, and the reference data of similar ages. Adjusted to age, BMI, and number of hospitalizations prior to the tests, values were correlated with the cough indices. RESULTS Cough peak-flow (C-PF) was propagated within 90 ± 20 ms compared with peak expiratory flow (PEF > 200 ms). C-PF measured values were higher than expiratory peak-flow measured values (3.27 ± 1.53 L/s versus 3.02 ± 1.52 L/s, respectively, but C-PF (%predicted) values were significantly lower than expiratory peak-flow (%predicted) (46 ± 15 versus 68 ± 20 %predicted, respectively, p < 0.002). The number of spikes/maneuver was low when compared with reference (2.0 ± 0.8 versus 6-12 spikes) and cough vital-capacity was lower than expiratory vital capacity (0.95 ± 0.43 versus 1.03 ± 0.47; p < 0.01). Inefficient C-PF was more prevalent in patients suffering from recurrent respiratory illness. The length of wheelchair confinement duration mostly influenced the C-VC level. CONCLUSIONS The cough flow-volume curve can be applied as a method to follow cough ability in patients with A-T who showed a significantly reduced cough capacity. Further studies are needed to establish if the findings may aid decisions regarding cough assistance.
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Affiliation(s)
- Daphna Vilozni
- a The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Affiliated with the Sackler Faculty of Medicine, Tel-Aviv University, Israel, Pediatric Pulmonary Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center , Ramat-Gan , Israel
| | - Moran Lavie
- a The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Affiliated with the Sackler Faculty of Medicine, Tel-Aviv University, Israel, Pediatric Pulmonary Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center , Ramat-Gan , Israel
| | - Ifat Sarouk
- a The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Affiliated with the Sackler Faculty of Medicine, Tel-Aviv University, Israel, Pediatric Pulmonary Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center , Ramat-Gan , Israel
| | - Yonit Levi
- a The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Affiliated with the Sackler Faculty of Medicine, Tel-Aviv University, Israel, Pediatric Pulmonary Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center , Ramat-Gan , Israel
| | - Mary-Rose Alcaneses Ofek
- a The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Affiliated with the Sackler Faculty of Medicine, Tel-Aviv University, Israel, Pediatric Pulmonary Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center , Ramat-Gan , Israel
| | - Ori Efrati
- a The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Affiliated with the Sackler Faculty of Medicine, Tel-Aviv University, Israel, Pediatric Pulmonary Unit, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center , Ramat-Gan , Israel
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Canning BJ, Chang AB, Bolser DC, Smith JA, Mazzone SB, McGarvey L. Anatomy and neurophysiology of cough: CHEST Guideline and Expert Panel report. Chest 2015; 146:1633-1648. [PMID: 25188530 PMCID: PMC4251621 DOI: 10.1378/chest.14-1481] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Bronchopulmonary C-fibers and a subset of mechanically sensitive, acid-sensitive myelinated sensory nerves play essential roles in regulating cough. These vagal sensory nerves terminate primarily in the larynx, trachea, carina, and large intrapulmonary bronchi. Other bronchopulmonary sensory nerves, sensory nerves innervating other viscera, as well as somatosensory nerves innervating the chest wall, diaphragm, and abdominal musculature regulate cough patterning and cough sensitivity. The responsiveness and morphology of the airway vagal sensory nerve subtypes and the extrapulmonary sensory nerves that regulate coughing are described. The brainstem and higher brain control systems that process this sensory information are complex, but our current understanding of them is considerable and increasing. The relevance of these neural systems to clinical phenomena, such as urge to cough and psychologic methods for treatment of dystussia, is high, and modern imaging methods have revealed potential neural substrates for some features of cough in the human.
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Affiliation(s)
| | - Anne B Chang
- Queensland Children's Respiratory Centre, Royal Children's Hospital, Brisbane, QLD, Australia, Child Health Division, Menzies School of Health, Darwin, NT, Australia
| | - Donald C Bolser
- Department of Physiological Sciences, University of Florida, Gainesville, FL
| | - Jaclyn A Smith
- Centre for Respiratory and Allergy, University of Manchester, Manchester, England
| | - Stuart B Mazzone
- School of Biomedical Sciences, University of Queensland, Brisbane, QLD, Australia
| | - Lorcan McGarvey
- Centre for Infection and Immunity, The Queen's University of Belfast, Belfast, Northern Ireland.
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15
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Bahat G, Tufan A, Ozkaya H, Tufan F, Akpinar TS, Akin S, Bahat Z, Kaya Z, Kiyan E, Erten N, Karan MA. Relation between hand grip strength, respiratory muscle strength and spirometric measures in male nursing home residents. Aging Male 2014; 17:136-40. [PMID: 24993454 DOI: 10.3109/13685538.2014.936001] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Adverse-outcomes related to sarcopenia are mostly mentioned as physical disability. As the other skeletal muscles, respiratory muscles may also be affected by sarcopenia. Respiratory muscle strength is known to affect pulmonary functions. Therefore, we aimed to investigate the relations between extremity muscle strength, respiratory muscle strengths and spirometric measures in a group of male nursing home residents. Among a total of 104 male residents, residents with obstructive measures were excluded and final study population was composed of 62 residents. Mean age was 70.5 ± 6.7 years, body mass index: 27.7 ± 5.3 kg/m2 and dominant hand grip strength: 29.7 ± 6.5 kg. Hand grip strength was positively correlated with maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) (r = 0.35, p < 0.01 and r = 0.26, p < 0.05, respectively). In regression analysis, the only factor related to MIP was hand grip strength; among spirometric measures only parameter significantly related to grip strength was peak cough flow (PCF). The association of PCF with grip strength disappeared when MIP alone or "MIP and MEP" were included in the regression analysis. In the latter case, PCF was significantly associated only with MIP. We found peripheric muscle strength be associated with MIP and PCF but not with MEP or any other spirometric parameters. The relation between peripheral muscle strength and PCF was mediated by MIP. Our findings suggest that sarcopenia may affect inspiratory muscle strength earlier or more than the expiratory muscle strength. Sarcopenia may cause decrease in PCF in the elderly, which may stand for some common adverse respiratory complications.
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Affiliation(s)
- Gulistan Bahat
- Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University , Capa, Istanbul , Turkey
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Gauld LM, Keeling LA, Shackleton CE, Sly PD. Forced Oscillation Technique in Spinal Muscular Atrophy. Chest 2014; 146:795-803. [DOI: 10.1378/chest.14-0166] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Eickhoff P, Fazekas T, Wank H, Kastner U. Dornase alpha inhalations as a treatment option for recurrent lower respiratory tract infections in a child with Sotos syndrome. Wien Klin Wochenschr 2014; 126:431-4. [DOI: 10.1007/s00508-014-0552-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 04/13/2014] [Indexed: 11/30/2022]
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18
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Moran FCE, Spittle A, Delany C, Robertson CF, Massie J. Effect of home mechanical in-exsufflation on hospitalisation and life-style in neuromuscular disease: a pilot study. J Paediatr Child Health 2013; 49:233-7. [PMID: 23438093 DOI: 10.1111/jpc.12111] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/26/2012] [Indexed: 01/29/2023]
Abstract
AIM Mechanical in-exsufflation (MI-E) augments the weakened cough of patients with neuromuscular disease (NMD), clearing secretions and overcoming atelectasis. Little has been published on the impact of MI-E alone on rates of hospitalisation and quality of life (QOL). The aim of this study was to assess the impact of home MI-E on hospital admissions and life-style in children with NMD. METHODS A retrospective chart review was performed on children using MI-E, including data on the number of admissions to hospital, length of stay and hours of ventilation. A parental survey was used to gather information on the impact of MI-E on life-style for the child and family. RESULTS Ten children with NMD (seven spinal muscular atrophy, two Duchenne muscular dystrophy and one centronuclear myopathy) using MI-E at home were identified. MI-E use commenced at mean age of 8.5 years (range 1.1-16.9) with 1.4 years of use (range 0.3-3.8). MI-E pressures ranged from +/-30 to 40 cmH2 O with no complications reported. There was a significant reduction in hospital days at 6 (P = 0.036) and 12 (P = 0.028) months following commencement of home MI-E compared with the same period preceding MI-E use. The survey highlighted positive benefits of MI-E use, in particular the ability to treat many pulmonary exacerbations at home. CONCLUSIONS Home MI-E use by children with NMD can reduce hospitalisation and benefit families by maintaining their child at home.
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Affiliation(s)
- Fiona C E Moran
- Department of Physiotherapy, Royal Children's Hospital, Melbourne, Victoria, Australia.
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Anatomy and neuro-pathophysiology of the cough reflex arc. Multidiscip Respir Med 2012; 7:5. [PMID: 22958367 PMCID: PMC3415124 DOI: 10.1186/2049-6958-7-5] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 06/18/2012] [Indexed: 01/01/2023] Open
Abstract
Coughing is an important defensive reflex that occurs through the stimulation of a complex reflex arc. It accounts for a significant number of consultations both at the level of general practitioner and of respiratory specialists. In this review we first analyze the cough reflex under normal conditions; then we analyze the anatomy and the neuro-pathophysiology of the cough reflex arc. The aim of this review is to provide the anatomic and pathophysiologic elements of evaluation of the complex and multiple etiologies of cough.
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20
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Park JH, Kang SW, Lee SC, Choi WA, Kim DH. How respiratory muscle strength correlates with cough capacity in patients with respiratory muscle weakness. Yonsei Med J 2010; 51:392-7. [PMID: 20376892 PMCID: PMC2852795 DOI: 10.3349/ymj.2010.51.3.392] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
PURPOSE The purpose of this study is to investigate how respiratory muscle strength correlates to cough capacity in patients with respiratory muscle weakness. MATERIALS AND METHODS Forty-five patients with amyotrophic lateral sclerosis (ALS), 43 with cervical spinal cord injury (SCI), and 42 with Duchenne muscular dystrophy (DMD) were recruited. Pulmonary function tests including forced vital capacity (FVC) and respiratory muscle strength (maximal expiratory pressure, MEP; maximal inspiratory pressure, MIP) were performed. The correlation between respiratory muscle strength and cough capacity was analyzed. RESULTS In the SCI group, FVC in a supine position (2,597 +/- 648 mL) was significantly higher than FVC in a sitting position (2,304 +/- 564 mL, p < 0.01). Conversely, in the ALS group, FVC sitting (1,370 +/- 604 mL) was significantly higher than in supine (1,168 +/- 599 mL, p < 0.01). In the DMD group, there was no statistically significant difference between FVC while sitting (1,342 +/- 506 mL) and FVC while supine (1,304 +/- 500 mL). In addition, the MEP and MIP of all three groups showed a significant correlation with peak cough flow (PCF) (p < 0.01, Pearson's correlation analysis). In the SCI group, MIP was more closely correlated with PCF, while in the ALS and DMD groups, MEP was more closely correlated with PCF (p < 0.01, multiple regression analysis). CONCLUSION To generate cough flow, inspiratory muscle strength is significantly more important for SCI patients, while expiratory muscle function is significantly more important for ALS and DMD patients.
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Affiliation(s)
- Jung Hyun Park
- Department of Rehabilitation Medicine, Eulji University Hospital, Daejeon, Korea
| | - Seong-Woong Kang
- Department of Rehabilitation Medicine and Rehabilitation Institute of Muscular Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Chul Lee
- Department of Physical Medicine and Rehabilitation, Myongji Hospital, Kwandong University College of Medicine, Seoul, Korea
| | - Won Ah Choi
- Department of Rehabilitation Medicine and Rehabilitation Institute of Muscular Disease, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Hyun Kim
- Department of Rehabilitation Medicine and Rehabilitation Institute of Muscular Disease, Yonsei University College of Medicine, Seoul, Korea
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21
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Affiliation(s)
- Fiona Healy
- Division of Pulmonary Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
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22
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Berkun Y, Vilozni D, Levi Y, Borik S, Waldman D, Somech R, Nissenkorn A, Efrati O. Reversible airway obstruction in children with ataxia telangiectasia. Pediatr Pulmonol 2010; 45:230-5. [PMID: 20146367 DOI: 10.1002/ppul.21095] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
INTRODUCTION Lung disease is a significant cause of the short life span of ataxia telangiectasia (A-T) patients. Objective lung function measurements are difficult to achieve in A-T. AIM To assess lung function by spirometry in relation to the clinical characteristics of A-T patients followed up at the Israeli Ataxia Telangiectasia National Clinic. PATIENTS AND METHODS Medical and spirometry data were collected from 27 A-T patients during 2004-2007. Laboratory, nutritional condition, mode of treatment, pulmonary status, and malignancies were assessed. The spirometry values FVC, FEV(1), FEV(0.5), FEF(25-75), PEF and time rise to peak flow were analyzed individually and values were compared to those of healthy age-matched children. RESULTS Eleven patients (40.7%) were found to suffer from asthma according to clinical symptoms and response to bronchodilators. We found significant reduction in FEV(1) and FEV(0.5) (z-scores: -0.84 + or - 0.7 SD, -0.7 + or - 0.6 SD; P = 0.0014 and P = 0.003, respectively), in relation to healthy predicted values. FEF(25-75) was significantly lower than that in healthy children in 5 of 11 asthmatic patients. All 27 patients showed higher than healthy FEV(1)/FVC and FEV(0.5)/FVC ratios (z-scores 0.68 + or - 0.99 SD, P < 0.0015, and 2.12 + or - 1.50 SD, P < 0.0015, respectively). The rise time to peak flow was three-fold longer than that of healthy children. CONCLUSION Obstructive lung disease is common among A-T patients. Maximal peak flow reduction and prolonged rise time to peak flow may be the first signs of pulmonary involvement in these patients. Early treatment with anti-asthma therapy, bronchodilators, and steroids, may prevent further pulmonary deterioration and improve the prognosis of A-T patients.
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Affiliation(s)
- Yackov Berkun
- Ataxia Telangiectasia National Clinic, Chaim Sheba Medical Center, Tel Hashomer, affiliated with the Sackler Medical School, Tel-Aviv University, Israel
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Lee SC, Park JH, Kang SW, Kim DH, Song SH. External Control of Exhalation for Cough Assistance: A Method for Patients With Glottis Dysfunction and/or Tracheostomy. Arch Phys Med Rehabil 2009; 90:1402-7. [DOI: 10.1016/j.apmr.2009.02.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Revised: 02/24/2009] [Accepted: 02/24/2009] [Indexed: 11/16/2022]
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Abstract
In neuromuscular disease (NMD) patients with progressive muscle weakness, respiratory muscles are also affected and hypercapnia can increase gradually as the disease progresses. The fundamental respiratory problems NMD patients experience are decreased alveolar ventilation and coughing ability. For these reasons, it is necessary to precisely evaluate pulmonary function to provide the proper inspiratory and expiratory muscle aids in order to maintain adequate respiratory function. As inspiratory muscle weakening progresses, NMD patients experience hypoventilation. At this point, respiratory support by mechanical ventilator should be initiated to relieve respiratory distress symptoms. Patients with adequate bulbar muscle strength and cognitive function who use a non-invasive ventilation aid, via a mouthpiece or a nasal mask, may have their hypercapnia and associated symptoms resolved. For a proper cough assist, it is necessary to provide additional insufflation to patients with inspiratory muscle weakness before using abdominal thrust. Another effective method for managing airway secretions is a device that performs mechanical insufflation-exsufflation. In conclusion, application of non-invasive respiratory aids, taking into consideration characterization of respiratory pathophysiology, have made it possible to maintain a better quality of life in addition to prolonging the life span of patients with NMD.
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Affiliation(s)
- Seong-Woong Kang
- Department of Physical Medicine and Rehabilitation, Yongdong Severance Hospital, Yonsei University College of Medicine, Kangnam-gu, Seoul 135-720, Korea.
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Abstract
Duchenne muscular dystrophy (DMD) is a fatal disorder affecting approximately 1 in 3,500 live born males, characterized by progressive muscle weakness. Several different strategies are being investigated in developing a cure for this disorder. Until a cure is found, therapeutic and supportive care is essential in preventing complications and improving the afflicted child's quality of life. Currently, corticosteroids are the only class of drug that has been extensively studied in this condition, with controversy existing over the use of these drugs, especially in light of the multiple side effects that may occur. The use of nutritional supplements has expanded in recent years as researchers improve our abilities to use gene and stem cell therapies, which will hopefully lead to a cure soon. This article discusses the importance of therapeutic interventions in children with DMD, the current debate over the use of corticosteroids to treat this disease, the growing use of natural supplements as a new means of treating these boys and provides an update on the current state of gene and stem cell therapies.
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Affiliation(s)
- Jonathan B Strober
- Pediatric Muscular Dystrophy Association Clinic, University of California, San Francisco, USA.
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Kang SW, Kang YS, Sohn HS, Park JH, Moon JH. Respiratory muscle strength and cough capacity in patients with Duchenne muscular dystrophy. Yonsei Med J 2006; 47:184-90. [PMID: 16642546 PMCID: PMC2687626 DOI: 10.3349/ymj.2006.47.2.184] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The function of inspiratory muscles is crucial for effective cough as well as expiratory muscles in patients with Duchenne muscular dystrophy (DMD). However, there is no report on the correlation between cough and inspiratory muscle strength. To investigate the relationships of voluntary cough capacity, assisted cough techniques, and inspiratory muscle strength as well as expiratory muscle strength in patients with DMD (n= 32). The vital capacity (VC), maximum insufflation capacity (MIC), maximal inspiratory pressure (MIP), and maximal expiratory pressure (MEP) were measured. Unassisted peak cough flow (UPCF) and three different techniques of assisted PCF were evaluated. The mean value of MICs (1918 +/- 586 mL) was higher than that of VCs (1474 +/- 632 mL) (p < 0.001). All three assisted cough methods showed significantly higher value than unassisted method (212 +/- 52 L/min) (F = 66.13, p < 0.001). Combined assisted cough technique (both manual and volume assisted PCF; 286 +/- 41 L/min) significantly exceeded manual assisted PCF (MPCF; 246 +/- 49 L/ min) and volume assisted PCF (VPCF; 252 +/- 45 L/min) (F = 66.13, p < 0.001). MIP (34 +/- 13 cmH2O) correlated significantly with both UPCF and all three assisted PCFs as well as MEP (27 +/- 10 cmH2O) (p < 0.001). Both MEP and MIP, which are the markers of respiratory muscle weakness, should be taken into account in the study of cough effectiveness.
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Affiliation(s)
- Seong-Woong Kang
- Department of Physical Medicine and Rehabilitation, Yongdong Severance Hospital, Yonsei University College of Medicine, 146-92 Dogok-dong, Kangnam-gu, Seoul 135-720, Korea.
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Abstract
OBJECTIVES To describe the anatomy and neurophysiology of the cough reflex. METHODS A review of the literature was carried out using PubMed and the ISI Web of Knowledge from 1951 to 2004. Most of the referenced studies were carried out in animals CONCLUSIONS Studies carried out in animals provide suggestive but inconclusive evidence that C-fibers and rapidly adapting receptors (RARs) arising from the vagus nerves mediate coughing. Recent studies also have suggested that a vagal afferent nerve subtype that is not readily classified as a RAR or a C-fiber may play an important role in regulating cough. Afferent nerves innervating other viscera, as well as somatosensory nerves innervating the chest wall, diaphragm, and abdominal musculature also likely play a less essential but important accessory role in regulating cough. The responsiveness and morphology of the airway vagal afferent nerve subtypes and the extrapulmonary afferent nerves that regulate coughing are described.
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Kang SW, Shin JC, Park CI, Moon JH, Rha DW, Cho DH. Relationship between inspiratory muscle strength and cough capacity in cervical spinal cord injured patients. Spinal Cord 2005; 44:242-8. [PMID: 16151446 DOI: 10.1038/sj.sc.3101835] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
STUDY DESIGN Prospective single centre study. OBJECTIVES Pulmonary rehabilitation focuses on improving the expiratory muscle function in order to increase the reduced cough capacity in patients with cervical spinal cord injuries (SCI). However, an improvement in the inspiratory function is also important for coughing effectively. Therefore, this study was to examine the significance of the inspiratory muscle strength on the cough capacity in the patients with a cervical SCI. SETTING SCI unit, Yonsei Rehabilitation Hospital, Seoul, Korea. METHODS The vital capacity (VC), maximum inspiratory pressure (MIP), and maximum expiratory pressure (MEP) were measured. Moreover, the unassisted peak cough flow (PCF) and assisted PCF under three conditions were evaluated. RESULTS All three assisted cough methods showed a significantly higher value than the unassisted method (P < 0.001). The VC correlated with the voluntary cough capacity and the MIP (R = 0.749) correlated more significantly with the VC than the MEP (R = 0.438) (P < 0.01). The MIP showed a higher correlation with both the unassisted PCF and all three assisted PCFs than the MEP (P < 0.001). CONCLUSIONS The management of the inspiratory muscle strength should be considered in the pulmonary rehabilitation at cervical SCI patients.
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Affiliation(s)
- S W Kang
- Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea
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Gauld LM, Boynton A. Relationship between peak cough flow and spirometry in Duchenne muscular dystrophy. Pediatr Pulmonol 2005; 39:457-60. [PMID: 15765540 DOI: 10.1002/ppul.20151] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Spirometry is used to monitor respiratory progress in children with Duchenne muscular dystrophy (DMD). Mucociliary clearance depends on cough strength, which can be measured by peak cough flow (PCF). It is not routinely measured in most centers. When the PCF falls below 270 l/min, mucociliary clearance is likely to be impaired during viral illnesses, and techniques to assist mucociliary clearance should be taught. There is no known association between spirometry and PCF. Our aim was to assess if PCF relates to spirometry measures, and if spirometry can be used to predict when the PCF <270 l/min. Children with DMD aged 6-19 years were recruited. Spirometry was performed with a Jaeger Masterscope with version 4.60 software. PCF was performed with a Wright peak flow meter. Data were collected into an Access '97 database, and statistics were performed with Stata 7.0. The association between PCF and spirometry was defined with linear regression. Logistic regression was used to predict the probability that the PCF would be <270 l/min for any given forced vital capacity (FVC) or forced expired volume in 1 sec (FEV1). The risk ratios for PCF <270 l/min were calculated for the spirometry parameters. PCF is associated with FVC (R2, 0.72) and FEV1 (R2, 0.69). The likelihood of PCF <270 l/min rises when FVC <2.l and FEV1 <2.l/sec. The risk ratio for PCF <270 l/min when FVC <2.1 l is 4.80 (1.72-13.40) and when FEV1 <2.1 l/sec is 3.94 (1.43-10.85). In children with DMD, PCF should be measured when FVC <2.1 l or FEV1 <2.1 l/sec, so that techniques to assist with mucociliary clearance can be effectively used.
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Affiliation(s)
- Leanne M Gauld
- Department of Respiratory Medicine, Sydney Children's Hospital, Sydney, New South Wales, Australia.
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Miske LJ, Hickey EM, Kolb SM, Weiner DJ, Panitch HB. Use of the mechanical in-exsufflator in pediatric patients with neuromuscular disease and impaired cough. Chest 2004; 125:1406-12. [PMID: 15078753 DOI: 10.1378/chest.125.4.1406] [Citation(s) in RCA: 124] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Impaired cough secondary to weakness from neuromuscular disease (NMD) can cause serious respiratory complications, including atelectasis, pneumonia, small airway obstruction, and acidosis. The mechanical in-exsufflator (MI-E) delivers a positive-pressure insufflation followed by an expulsive exsufflation, thereby simulating a normal cough. Use of the MI-E in adults with impaired cough results in improved cough flows and enhanced airway clearance. However, only limited reports of MI-E use in children exist. OBJECTIVE To determine the safety, tolerance, and effectiveness of the MI-E in a pediatric population. METHOD Retrospective medical record review. PARTICIPANTS Sixty-two patients (34 male patients) observed in a pediatric pulmonary program with NMD and impaired cough in whom MI-E therapy was initiated. Median age at initiation of MI-E use was 11.3 years (range, 3 months to 28.6 years). Diagnoses included the following: Duchenne muscular dystrophy (17 patients); spinal muscular atrophy, types I and II (21 patients); myopathy (12 patients); other nonspecific NMD (12 patients). Mechanical ventilation via tracheostomy was used in 29 patients, and 25 patients used noninvasive ventilation. RESULTS The median duration of use was 13.4 months (range, 0.5 to 45.5 months). One infant died before using MI-E at home. Five patients chose not to continue MI-E therapy. Complications were reported in two patients, but ultimately they used the MI-E device. Chronic atelectasis resolved in four patients after beginning MI-E therapy, and five patients experienced a reduction in the frequency of pneumonias. CONCLUSION In 90% of our study population, the use of an MI-E was safe, well-tolerated, and effective in preventing pulmonary complications.
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Affiliation(s)
- Laura J Miske
- Department of Nursing, University of Pennsylvania School of Medicine, The Children's Hospital of Philadelphia, Philadelphia 19104, USA.
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Yates K, Festa M, Gillis J, Waters K, North K. Outcome of children with neuromuscular disease admitted to paediatric intensive care. Arch Dis Child 2004; 89:170-5. [PMID: 14736637 PMCID: PMC1719795 DOI: 10.1136/adc.2002.019562] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
AIMS To determine the outcome of children with neuromuscular disease (NMD) following admission to a tertiary referral paediatric intensive care (PICU). METHODS All children with chronic NMD whose first PICU admission was between July 1986 and June 2001 were followed up from their first PICU admission to time of study. The outcomes recorded were death in or outside of PICU, duration of PICU admission, artificial ventilation during admission and following discharge from PICU, and readmission to PICU. RESULTS Over 15 years, 28 children were admitted on 69 occasions. Sixteen (57%) children had more than one admission. The median duration of PICU admission was 4 days (range 0.5-42). Twenty three per cent of unplanned admissions resulted in the commencement of respiratory support that was continued after discharge from the PICU. Severity of functional impairment was not associated with longer duration of stay or higher PRISM scores. Ten children (36%) died, with four (14%) deaths in the PICU. A higher proportion of children with severe limitation of function were among children that died compared to survivors. CONCLUSION Most children with NMD admitted to the PICU recover and are discharged without the need for prolonged invasive ventilation. However, in this group of children, the use of non-invasive home based ventilation is common and they are likely to require further PICU admission.
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Affiliation(s)
- K Yates
- Department of Paediatric Intensive Care, The Children's Hospital at Westmead, Sydney, Australia
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Abstract
The cough reflex is initiated through activation of vagal afferent nerves. Rapidly adapting receptors fulfill all criteria for the afferents subserving the cough reflex. Bronchopulmonary C-fibres may also initiate cough when activated. C-fibre-mediated cough may depend upon ongoing or initiated activity in rapidly adapting receptors. The interaction between airways C-fibres and rapidly adapting receptors may occur at sites in the periphery or in the brainstem. C-fibre mediated cough must also overcome a coincident inhibitory effect of C-fibre activation on cough, an inhibitory effect that becomes prominent under general anesthaesia.
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Affiliation(s)
- Brendan J Canning
- Johns Hopkins Asthma and Allergy Center, 5501 Hopkins Bayview Circle, Baltimore, Maryland 21224, USA.
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