Anatomy and Neuroscience - Research Publications
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ItemCommencement of cardioselective beta-blockers during hospitalisation for acute exacerbations of chronic obstructive pulmonary disease(WILEY, 2017-09)BACKGROUND: In patients with chronic obstructive pulmonary disease (COPD) and co-morbid cardiovascular disease, emerging evidence suggests a benefit in commencing cardioselective beta-blockers. AIM: Our objective was to determine the safety of beta-blocker commencement during hospitalisation for acute exacerbation of COPD. METHODS: A retrospective cohort study of 1071 patients hospitalised for acute exacerbation of COPD was conducted across two tertiary hospitals over a 12-month period. We identified 36 patients in whom beta-blocker therapy was commenced during admission. The primary outcome of the study was to assess cardiovascular and respiratory adverse events related to the commencement of beta-blocker therapy. RESULTS: The most common indications for beta-blockers were atrial fibrillation (53%) and acute coronary syndrome (36%). Metoprolol was the most commonly prescribed beta-blocker (75%). No patients suffered clinically significant declines of respiratory function following the commencement of a beta-blocker, including worsening respiratory symptoms, oxygen, bronchodilator or ventilation requirements. These results were demonstrable in patients with reversible airways disease and advanced COPD. Only one patient (2.8%) experienced symptomatic hypotension after 48 h of therapy. CONCLUSION: The commencement of cardioselective beta-blockers during acute exacerbations of COPD appears to be well-tolerated.
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ItemLow rates of eligibility for lung cancer screening in patients undergoing computed tomography coronary angiography(WILEY, 2018-10)Incidental findings, including pulmonary nodules, on computed tomography coronary angiography (CTCA) are common. Previous authors have suggested CTCA could allow opportunistic screening for lung cancer, though the lung cancer risk profile of this patient group has not previously been established. Smoking histories of 229 patients undergoing CTCA at two tertiary hospitals were reviewed and only 25% were current or former smokers aged 55-80 years old. Less than half of this group were eligible for screening based on the PLCOm2012 risk model. We conclude that routine screening in the form of full thoracic field imaging, of individuals undergoing CTCA is not appropriate as it would likely result in net harm.
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ItemOutcomes following resection of non-small cell lung cancer in octogenarians(WILEY, 2018-12)BACKGROUND: The treatment of choice for early stage non-small cell lung cancer (NSCLC) is surgical resection. Little is known about the short- and long-term outcomes among very elderly patients. We sought to determine predictors of short- and long-term survival among octogenarians undergoing curative-intent resection for NSCLC in Victoria, Australia. METHODS: We retrospectively reviewed data from all patients aged ≥80 years who underwent curative-intent resection for NSCLC over 12 years (January 2005-December 2016) across five tertiary centres. We examined effect of age, stage of disease, extent of surgery and lung function on short- and long-term survival. RESULTS: Two hundred patients aged ≥80 years underwent curative-intent resections. Mortality at 30 and 120 days was 2.9% and 5.9%, respectively. Increased early mortality was observed among those ≥83 years, at 30 days (6.8% versus 0.8%, P = 0.044) and 120 days (12.2% versus 2.3%, P = 0.0096). Early mortality was highest among patients ≥83 years requiring lobectomy, compared to sub-lobar resection at 120 days (17% versus 3.8%, P = 0.019). Long-term survival was predicted by age and stage of disease. Among patients with Stage I disease aged <83 years, lobectomy was associated with superior 5-year survival, compared to sub-lobar resection (83% versus 61%, P = 0.02). CONCLUSION: In carefully selected elderly patients undergoing curative-intent resection of early stage NSCLC, both short- and long-term outcomes appear consistent with younger historical cohorts. Early mortality was associated with lobectomy in those with advanced age. Older patients undergoing lobectomy appeared to be at highest risk for early mortality, while younger patients with Stage I disease undergoing at least lobectomy appear to have the best long-term survival.
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