Establishing and delivering pulmonary rehabilitation in rural and remote settings: The opinions, attitudes and concerns of health care professionals.

OBJECTIVE: Pulmonary rehabilitation is recommended for people with chronic lung disease however access remains limited in rural and remote settings. The aim of this project was to explore the perspectives of rural and remote health care professionals regarding the establishment and delivery of pulmonary rehabilitation. SETTING: Rural (NSW) and remote (NT) Australian healthcare settings. PARTICIPANTS: Health care professionals (n = 25) who attended a training program focussing on the delivery of pulmonary rehabilitation. MAIN OUTCOME MEASURE(S): Surveys with open written questions were completed by participants following the training program. Key informants also participated in face-to-face interviews. Thematic analysis was undertaken of data collected on participant opinions, attitudes and concerns regarding the establishment and delivery of pulmonary rehabilitation in their individual situation. RESULTS: Participating health care professionals (predominantly nurses and physiotherapists) identified a number of issues relating to establishing and delivering pulmonary rehabilitation; including staffing, time and case load constraints, patient and community attitudes, lack of professional knowledge and confidence and inability to ensure sustainability. The practicalities of delivering pulmonary rehabilitation, particularly exercise prescription and training, were also important concerns raised. CONCLUSIONS: Lack of health care professional staffing, knowledge and confidence were reported to be factors impacting the establishment and delivery of pulmonary rehabilitation. This study has facilitated a greater understanding of the issues surrounding the establishment and delivery of pulmonary rehabilitation in rural and remote settings. Further research is required to investigate the contribution of health professional training and associated factors to improving the availability and delivery of pulmonary rehabilitation in rural and remote settings.

Does delivery of a training program for healthcare professionals increase access to pulmonary rehabilitation and improve outcomes for people with chronic lung disease in rural and remote Australia?

OBJECTIVE: Access to pulmonary rehabilitation (PR), an effective management strategy for people with chronic respiratory disease, is often limited particularly in rural and remote regions. Difficulties with establishment and maintenance of PR have been reported. Reasons may include a lack of adequately trained staff. There have been no published reports evaluating the impact of training programs on PR provision. The aim of this project was to evaluate the impact of an interactive training and support program for healthcare professionals (the Breathe Easy, Walk Easy (BEWE) program) on the delivery of PR in rural and remote regions. METHODS: The study was a quasi-experimental before-after design. Data were collected regarding the provision of PR services before and after delivery of the BEWE program and patient outcomes before and after PR. RESULTS: The BEWE program was delivered in one rural and one remote region. Neither region had active PR before the BEWE program delivery. At 12-month follow-up, three locally-run PR programs had been established. Audit and patient outcomes indicated that the PR programs established broadly met Australian practice recommendations and were being delivered effectively. In both regions PR was established with strong healthcare organisational support but without significant external funding, relying instead on the diversion of internal funding and/or in-kind support. CONCLUSIONS: The BEWE program enabled the successful establishment of PR and improved patient outcomes in rural and remote regions. However, given the funding models used, the sustainability of these programs in the long term is unknown. Further research into the factors contributing to the ability of rural and remote sites to provide ongoing delivery of PR is required.

Validation of respiratory inductive plethysmography (LifeShirt) in obesity hypoventilation syndrome.

Validation of respiratory inductive plethysmography (LifeShirt system) (RIPLS) for tidal volume (VT), minute ventilation (V˙E), and respiratory frequency (fB) was performed among people with untreated obesity hypoventilation syndrome (OHS) and controls. Measures were obtained simultaneously from RIPLS and a spirometer during two tests, and compared using Bland Altman analysis. Among 13 OHS participants (162 paired measures), RIPLS-spirometer agreement was unacceptable for VT: mean difference (MD) 3 mL (1%); limits of agreement (LOA) -216 to 220 mL (±36%); V˙E MD 0.1 L min(-1) (2%); LOA -4.1 to 4.3 L min(-1) (±36%); and fB: MD 0.2 br min(-1) (2%); LOA -4.6 to 5.0 br min(-1) (±27%). Among 13 controls (197 paired measures), RIPLS-spirometer agreement was acceptable for fB: MD -0.1 br min(-1) (-1%); LOA -1.2 to 1.1 br min(-1) (±12%), but unacceptable for VT: MD 5 mL (1%); LOA -160 to 169 mL (±20%) and V˙E: MD 0.1 L min(-1) (1%); LOA -1.4 to 1.5 L min(-1) (±20%). RIPLS produces valid measures of fB among controls but not OHS patients, and is not valid for quantifying respiratory volumes among either group.

Validity of arterialised-venous P CO2, pH and bicarbonate in obesity hypoventilation syndrome.

This prospective study investigated the validity of arterialised-venous blood gases (AVBG) for estimating arterial carbon dioxide P CO2, pH and bicarbonate (HCO3(-)) in people with obesity hypoventilation syndrome (OHS). AVBGs were obtained from an upper limb vein, after heating the skin at 42-46°C. Arterial blood gas (ABG) and AVBG samples were taken simultaneously and compared using Bland Altman analysis. Between-group differences were assessed with independent t-tests or Mann-Whitney U tests. Forty-two viable paired samples were analysed, including 27 paired samples from 15 OHS participants, and 15 paired samples from 16 controls. AVBG-ABG agreement was not different between groups, or between dorsal hand, forearm and antecubital AVBG sampling sites, and was clinically acceptable for P Co2: mean difference (MD) 0.4 mmHg (0.9%), limits of agreement (LOA) -2.7-3.6 mmHg (± 6.6%); pH: MD -0.008 (-0.1%), LOA -0.023-0.008 (± 0.2%); and HCO3(-): MD -0.3 mmol L(-1) (-1.0%), LOA -1.8-1.2 mmol L(-1) (± 5.3%). AVBG provides valid measures of [Formula: see text] , pH, and HCO3(-) in OHS.

Improving chronic lung disease management in rural and remote Australia: the Breathe Easy Walk Easy programme.

BACKGROUND AND OBJECTIVE: To evaluate the impact of a chronic lung disease management training programme, Breathe Easy Walk Easy (BEWE), for rural and remote health-care practitioners. METHODS: Quasi-experimental, before and after repeated measures design. Health-care practitioners (n = 33) from various professional backgrounds who attended the BEWE training workshop were eligible to participate. Breathe Easy Walk Easy, an interactive educational programme, consisted of a training workshop, access to online resources, provision of community awareness-raising materials and ongoing telephone/email support. Participant confidence, knowledge and attitudes were assessed via anonymous questionnaire before, immediately after and at 3 and 12 months following the BEWE workshop. At 12 months, local provision of pulmonary rehabilitation services and patient outcome data (6-min walk test results before and after pulmonary rehabilitation) were also recorded. RESULTS: Measured knowledge (score out of 19) improved significantly after the workshop (mean difference 7.6 correct answers, 95% confidence interval: 5.8-9.3). Participants' self-rated confidence and knowledge also increased. At 12-month follow up, three locally run pulmonary rehabilitation programmes had been established. For completing patients, there was a significant increase in 6-min walk distance following rehabilitation of 48 m (95% confidence interval: 18-70 m). CONCLUSIONS: The BEWE programme increased rural and remote health-care practitioner knowledge and confidence in delivering management for people living with chronic lung disease and facilitated the establishment of effective pulmonary rehabilitation programmes in regional and remote Australian settings where access to such programmes is limited.

Pulmonary rehabilitation in Australia: a national survey.

OBJECTIVE: To determine the current structure and content of pulmonary rehabilitation programs in Australia. DESIGN: A cross sectional, observational design using a purpose designed anonymous written survey. SETTING AND PARTICIPANTS: The National database of Pulmonary Rehabilitation Programs maintained by the Australian Lung Foundation was used to identify all known programs in all states and territories of Australia (n=193). All pulmonary rehabilitation programs listed on the database were included. Respondents were health professionals who coordinated programs. RESULTS: The response rate was 83% (161/193). Programs were coordinated by physiotherapists (75/147, 51%) and/or nurses (49/147, 33%), were hospital based (97/147, 66%) and ran for 8 weeks or longer (95/147, 65%). Pre (145/147, 99%) and post (137/147, 93%) program assessment was undertaken using a variety of measures. The Six Minute Walk Test (138/147, 94%) was the most commonly used test of exercise capacity. Exercise training was included in 145 programs (99%). Most patients attended at least two supervised exercise sessions per week (106/147, 72%) and exercised for at least 20 minutes (135/147, 92%). Lower limb endurance, upper limb endurance, strength training, and stretching/flexibility exercises were the most commonly included modes of exercise. Intensity prescription for exercise training was variable. Many respondents (93/147, 63%) indicated that they perceived a gap between their clinical practice and current evidence. CONCLUSIONS: Pulmonary rehabilitation programs in Australia generally meet the broad recommendations for practice in terms of components, program length, assessment and exercise training. The prescription of exercise training intensity is an area requiring deeper exploration.

Sprint training increases muscle oxidative metabolism during high-intensity exercise in patients with type 1 diabetes.

OBJECTIVE: To investigate sprint-training effects on muscle metabolism during exercise in subjects with (type 1 diabetic group) and without (control group) type 1 diabetes. RESEARCH DESIGN AND METHODS: Eight subjects with type 1 diabetes and seven control subjects, matched for age, BMI, and maximum oxygen uptake (Vo(2peak)), undertook 7 weeks of sprint training. Pretraining, subjects cycled to exhaustion at 130% Vo(2peak). Posttraining subjects performed an identical test. Vastus lateralis biopsies at rest and immediately after exercise were assayed for metabolites, high-energy phosphates, and enzymes. Arterialized venous blood drawn at rest and after exercise was analyzed for lactate and [H(+)]. Respiratory measures were obtained on separate days during identical tests and during submaximal tests before and after training. RESULTS: Pretraining, maximal resting activities of hexokinase, citrate synthase, and pyruvate dehydrogenase did not differ between groups. Muscle lactate accumulation with exercise was higher in type 1 diabetic than nondiabetic subjects and corresponded to indexes of glycemia (A1C, fasting plasma glucose); however, glycogenolytic and glycolytic rates were similar. Posttraining, at rest, hexokinase activity increased in type 1 diabetic subjects; in both groups, citrate synthase activity increased and pyruvate dehydrogenase activity decreased; during submaximal exercise, fat oxidation was higher; and during intense exercise, peak ventilation and carbon dioxide output, plasma lactate and [H(+)], muscle lactate, glycogenolytic and glycolytic rates, and ATP degradation were lower in both groups. CONCLUSIONS: High-intensity exercise training was well tolerated, reduced metabolic destabilization (of lactate, H(+), glycogenolysis/glycolysis, and ATP) during intense exercise, and enhanced muscle oxidative metabolism in young adults with type 1 diabetes. The latter may have clinically important health benefits.

The effect on expiratory flow rate of maintaining bag compression during manual hyperinflation.

Operator performance during the expiratory phase of manual hyperinflation appears to vary between physiotherapists for Mapleson-B or C circuits. Some physiotherapists release the valve but maintain compression of the bag, whereas others release both the valve and the bag. The effect of this difference on peak expiratory flow rate (PEFR) has not been reported. The aim of this study was to document the effect of maintaining bag compression during expiration on PEFR and inspiratory to expiratory flow rate ratio (I:E). Six physiotherapists with experience using manual hyperinflation participated. A within-subjects repeated measures design was used. Subjects performed manual hyperinflation using a Mapleson-C circuit with 'rapid release', releasing the valve only, or releasing both the bag and the valve, during expiration in a test lung model. Inspiratory time was controlled using a metronome and flows were measured with a heated pneumotachometer. Maintaining bag compression significantly reduced PEFR (1.54 (0.08) vs 2.00 (0.07) l/sec, p = 0.008) and increased I:E flow rate ratio (0.65 (0.04) vs 0.50 (0.02), p = 0.02) for the Mapleson-C circuit at a 1.4 litre target volume. There were no significant differences for these measures between techniques when subjects emptied the bag. The effect needs to be confirmed in the clinical setting.

The effect of circuit type, volume delivered and "rapid release" on flow rates during manual hyperinflation.

Traditionally, manual hyperinflation has been performed using "rapid release" to promote a fast peak expiratory flow rate (PEFR) but rapid release has not been described. In addition, it has been demonstrated that different resuscitation circuits provide varying degrees of resistance to expiratory flow and it is known that a variety of circuits are used in Australia for manual hyperinflation. The aim of this study was to document current practice, the effect of rapid release, controlling inspiration, different volumes and circuit type on flow rates, and the inspiratory to expiratory flow rate (I:E) ratio during manual hyperinflation. Using a test lung model, 15 physiotherapists performed 11 trials using the Air Viva 2, a Mapleson-C and a Mapleson-F circuit, both with and without rapid release, and delivering two volumes. The order of the trials was randomised. Rapid release produced a faster PEFR irrespective of circuit type or volume delivered. The effect of rapid release, and the absolute PEFR, was less for the Air Viva 2 compared with the Mapleson circuits. Expiratory flow rate was faster for the larger volume. The theoretically optimal I:E ratio to move secretions was achieved delivering the lower target volume with the Mapleson circuits and using rapid release.