Backgroundand objective: Pulmonary nontuberculous mycobacterial (NTM) disease has a high mortality rate and often requires treatment with intravenous amikacin. We report on safety data in patients treated with intravenous amikacin for pulmonary. Methods: A retrospective observational study (2002-2012) was performed including 45 patients that met American Thoracic Society criteria for pulmonary NTM disease and were treated with intravenous amikacin at three hospitals in Brisbane, Australia. The aim was to define the rates of common adverse effects, the patient and regimen factors associated with these adverse effects and describe the rates of treatment success and associated factors. Results: Forty-five patients (34 women; median age 63 years) were treated for Mycobacterium intracellulare (25), Mycobacterium abscessus (13), Mycobacterium avium (6) and Mycobacterium fortuitum (1) using multi-drug therapy that included IV amikacin. Transient ototoxicity was seen in eight (18%) but longterm ototoxicity was seen in only three (7%). There were no cases of nephrotoxicity and no long-term vestibulotoxicity. Sustained culture conversion at 6 months was only found in 17 (38%), however, the majority (34 patients, 76%) had a clinical response to treatment determined by an improvement in symptoms. Conclusion: Carefully selected and closely monitored patients with pulmonary NTM can be treated using IV amikacin safely with low rates of toxicity. No pretreatment patient or regimen factors were predictive of toxicity or treatment success in this small cohort. Lower treatment success rates were found than previous trials suggest there is a difficult balance in this patient group between treatment success and toxicities.
This case reports the successful management of chylothorax in a non-transplanted patient with pulmonary lymphangioleiomyomatosis (pLAM). Prolonged initial therapy failed, including total parenteral nutrition, pleural drainage, surgical pleurodesis, and pleurectomy. Commencement of sirolimus 2 mg daily (2 mg alternating days had failed) led to resolution of chylothorax after 20 days. Discontinuation of sirolimus for abdominal surgery led to recurrence of the chylothorax. Reinstitution of sirolimus led to rapid resolution of the effusion, stabilization of lung function, and there has been no recurrence in the ensuing 4 years. We conclude that sirolimus should be considered in the management of pLAM-related chylothorax, perhaps before surgical intervention.
Older adults are susceptible to poor night-time sleep, characterized by short sleep duration and high sleep disruptions (i.e., more frequent and longer awakenings). This study aimed to longitudinally and objectively assess the changes in sleep patterns of older Australians during the 2020 pandemic lockdown. A non-invasive mattress-based device, known as the EMFIT QS, was used to continuously monitor sleep in 31 older adults with an average age of 84 years old before (November 2019–February 2020) and during (March–May 2020) the COVID-19, a disease caused by a form of coronavirus, lockdown. Total sleep time, sleep onset latency, wake after sleep onset, sleep efficiency, time to bed, and time out of bed were measured across these two periods. Overall, there was no significant change in total sleep time; however, women had a significant increase in total sleep time (36 min), with a more than 30-min earlier bedtime. There was also no increase in wake after sleep onset and sleep onset latency. Sleep efficiency remained stable across the pandemic time course between 84–85%. While this sample size is small, these data provide reassurance that objective sleep measurement did not deteriorate through the pandemic in older community-dwelling Australians.
Approximately 60% of Australians have low or marginal health literacy, which is associated with poorer outcomes in patients with chronic disease. Patient-centred strategies (such as reduced medical jargon, use of pictograms, multimedia narratives) are effective in improving outcomes for many chronic diseases, with the impact being greatest in individuals with low health literacy. However, clinicians need a reliable and practical tool for assessing health literacy, the results of which help inform the choice of communication techniques best tailored to deliver information to patients. This article reviews the evidence of health literacy as an independent predictor of poor disease outcomes, describes feasible methods for assessing health literacy and presents communication strategies aimed at facilitating shared decision-making among those with low health literacy.
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