RespirologyPub Date : 2024-09-01Epub Date: 2024-05-28DOI: 10.1111/resp.14765
Or Kalchiem-Dekel, Reza Bergemann, Xiaoyue Ma, Paul J Christos, Daniel Miodownik, Yiming Gao, Usman Mahmood, Prasad S Adusumilli, Matthew J Bott, Joseph Dycoco, Daphna Y Gelblum, Robert P Lee, Bernard J Park, Gaetano Rocco, Stephen B Solomon, David R Jones, Mohit Chawla, Bryan C Husta
{"title":"Determinants of radiation exposure during mobile cone-beam CT-guided robotic-assisted bronchoscopy.","authors":"Or Kalchiem-Dekel, Reza Bergemann, Xiaoyue Ma, Paul J Christos, Daniel Miodownik, Yiming Gao, Usman Mahmood, Prasad S Adusumilli, Matthew J Bott, Joseph Dycoco, Daphna Y Gelblum, Robert P Lee, Bernard J Park, Gaetano Rocco, Stephen B Solomon, David R Jones, Mohit Chawla, Bryan C Husta","doi":"10.1111/resp.14765","DOIUrl":"10.1111/resp.14765","url":null,"abstract":"<p><strong>Background and objective: </strong>Robotic-assisted bronchoscopy (RAB) is an emerging modality to sample pulmonary lesions. Cone-beam computed tomography (CBCT) can be incorporated into RAB. We investigated the magnitude and predictors of patient and staff radiation exposure during mobile CBCT-guided shape-sensing RAB.</p><p><strong>Methods: </strong>Patient radiation dose was estimated by cumulative dose area product (cDAP) and cumulative reference air kerma (cRAK). Staff equivalent dose was calculated based on isokerma maps and a phantom simulation. Patient, lesion and procedure-related factors associated with higher radiation doses were identified by logistic regression models.</p><p><strong>Results: </strong>A total of 198 RAB cases were included in the analysis. The median patient cDAP and cRAK were 10.86 Gy cm<sup>2</sup> (IQR: 4.62-20.84) and 76.20 mGy (IQR: 38.96-148.38), respectively. Among staff members, the bronchoscopist was exposed to the highest median equivalent dose of 1.48 μSv (IQR: 0.85-2.69). Both patient and staff radiation doses increased with the number of CBCT spins and targeted lesions (p < 0.001 for all comparisons). Patient obesity, negative bronchus sign, lesion size <2.0 cm and inadequate sampling by on-site evaluation were associated with a higher patient dose, while patient obesity and inadequate sampling by on-site evaluation were associated with a higher bronchoscopist equivalent dose.</p><p><strong>Conclusion: </strong>The magnitude of patient and staff radiation exposure during CBCT-RAB is aligned with safety thresholds recommended by regulatory authorities. Factors associated with a higher radiation exposure during CBCT-RAB can be identified pre-operatively and solicit procedural optimization by reinforcing radiation protective measures. Future studies are needed to confirm these findings across multiple institutions and practices.</p>","PeriodicalId":21129,"journal":{"name":"Respirology","volume":" ","pages":"803-814"},"PeriodicalIF":6.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11329349/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141161786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RespirologyPub Date : 2024-09-01Epub Date: 2024-07-23DOI: 10.1111/resp.14801
Octavian C Ioachimescu
{"title":"Obstructive sleep apnoea, oxygen desaturation and hypoxic burden: pebble, rock or boulder?","authors":"Octavian C Ioachimescu","doi":"10.1111/resp.14801","DOIUrl":"10.1111/resp.14801","url":null,"abstract":"","PeriodicalId":21129,"journal":{"name":"Respirology","volume":" ","pages":"761-764"},"PeriodicalIF":6.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141749028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RespirologyPub Date : 2024-09-01Epub Date: 2024-08-01DOI: 10.1111/resp.14809
Belinda R Miller, Christine F McDonald, Yet Hong Khor
{"title":"Reply to 'Home oxygen guidelines: We do not know enough about LTOT'.","authors":"Belinda R Miller, Christine F McDonald, Yet Hong Khor","doi":"10.1111/resp.14809","DOIUrl":"10.1111/resp.14809","url":null,"abstract":"","PeriodicalId":21129,"journal":{"name":"Respirology","volume":" ","pages":"845-846"},"PeriodicalIF":6.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141875847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RespirologyPub Date : 2024-09-01Epub Date: 2024-06-02DOI: 10.1111/resp.14763
Kavya Koshy, Hayley Barnes, Erica Farrand, Ian Glaspole
{"title":"Steroid therapy in acute exacerbation of fibrotic interstitial lung disease.","authors":"Kavya Koshy, Hayley Barnes, Erica Farrand, Ian Glaspole","doi":"10.1111/resp.14763","DOIUrl":"10.1111/resp.14763","url":null,"abstract":"<p><strong>Background and objective: </strong>Evidence for the benefit of steroid therapy in acute exacerbations (AEs) of idiopathic pulmonary fibrosis (IPF) is limited; however, they remain a cornerstone of management in other fibrotic interstitial lung diseases. This retrospective observational study assesses the effect of steroid treatment on in-hospital mortality in patients with acute exacerbation of fibrotic interstitial lung disease (AE-FILD) including IPF and non-IPF ILDs.</p><p><strong>Methods: </strong>AE-FILD cases over a 10-year period were filtered using a code-based algorithm followed by individual case evaluation. Binary logistic regression analysis was used to assess the relationship between corticosteroid treatment (defined as ≥0.5 mg/kg/day of prednisolone-equivalent for ≥3 days within the first 72 h of admission) and in-hospital mortality or need for lung transplantation. Secondary outcomes included readmission, overall survival, requirement for domiciliary oxygen and rehabilitation.</p><p><strong>Results: </strong>Across two centres a total of 107 AE-FILD subjects were included, of which 46 patients (43%) received acute steroid treatment. The steroid cohort was of younger age with fewer comorbidities but had higher oxygen requirements. Pre-admission FVC and DLCO, distribution of diagnoses and smoking history were similar. The mean steroid treatment dose was 4.59 mg/kg/day. Steroid use appeared to be associated with increased risk of inpatient mortality or transplantation (OR 4.11; 95% CI 1.00-16.83; p = 0.049). In the steroid group, there appeared to be a reduced risk of all-cause mortality in non-IPF patients (HR 0.21; 95% CI 0.04-0.96; p = 0.04) compared to their IPF counterparts. Median survival was reduced in the steroid group (221 vs. 520.5 days) with increased risk of all-cause mortality (HR 3.25; 95% CI 1.56-6.77; p < 0.01).</p><p><strong>Conclusion: </strong>In this two-centre retrospective study of 107 patients, AE-FILD demonstrates a high risk of mortality, at a level similar to that seen for AE-IPF, despite steroid treatment. Clinicians should consider other precipitating factors for exacerbations and use steroids judiciously. Further prospective trials are needed to determine the role of corticosteroids in AE-FILD.</p>","PeriodicalId":21129,"journal":{"name":"Respirology","volume":" ","pages":"795-802"},"PeriodicalIF":6.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141200814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RespirologyPub Date : 2024-09-01Epub Date: 2024-07-22DOI: 10.1111/resp.14797
Paul D Robinson, Dwan Vilcins
{"title":"Clearing the air: Understanding the long-term lung effects of the Hazelwood coal mine fire.","authors":"Paul D Robinson, Dwan Vilcins","doi":"10.1111/resp.14797","DOIUrl":"10.1111/resp.14797","url":null,"abstract":"","PeriodicalId":21129,"journal":{"name":"Respirology","volume":" ","pages":"743-744"},"PeriodicalIF":6.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141749027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RespirologyPub Date : 2024-09-01Epub Date: 2024-05-07DOI: 10.1111/resp.14731
Elvis Malcolm Irusen, Danica Meiring, Coenraad Frederik Nicolaas Koegelenberg
{"title":"Asthma-COPD overlap and asthma progressing to COPD: Are we using the right diagnostic approaches and pathways?","authors":"Elvis Malcolm Irusen, Danica Meiring, Coenraad Frederik Nicolaas Koegelenberg","doi":"10.1111/resp.14731","DOIUrl":"10.1111/resp.14731","url":null,"abstract":"","PeriodicalId":21129,"journal":{"name":"Respirology","volume":" ","pages":"756-758"},"PeriodicalIF":6.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140869428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RespirologyPub Date : 2024-09-01Epub Date: 2024-07-14DOI: 10.1111/resp.14792
Christine F McDonald, Philip G Bardin, Martin MacDonald
{"title":"Asthma-COPD overlap and asthma progressing to COPD: A complementary perspective.","authors":"Christine F McDonald, Philip G Bardin, Martin MacDonald","doi":"10.1111/resp.14792","DOIUrl":"10.1111/resp.14792","url":null,"abstract":"","PeriodicalId":21129,"journal":{"name":"Respirology","volume":" ","pages":"759-760"},"PeriodicalIF":6.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141617051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RespirologyPub Date : 2024-09-01Epub Date: 2024-07-15DOI: 10.1111/resp.14793
Christine F McDonald, John Serginson, Saad AlShareef, Catherine Buchan, Huw Davies, Belinda R Miller, Maitri Munsif, Natasha Smallwood, Lauren Troy, Yet Hong Khor
{"title":"Thoracic Society of Australia and New Zealand clinical practice guideline on adult home oxygen therapy.","authors":"Christine F McDonald, John Serginson, Saad AlShareef, Catherine Buchan, Huw Davies, Belinda R Miller, Maitri Munsif, Natasha Smallwood, Lauren Troy, Yet Hong Khor","doi":"10.1111/resp.14793","DOIUrl":"10.1111/resp.14793","url":null,"abstract":"<p><p>This Thoracic Society of Australia and New Zealand Guideline on the provision of home oxygen therapy in adults updates a previous Guideline from 2015. The Guideline is based upon a systematic review and meta-analysis of literature to September 2022 and the strength of recommendations is based on GRADE methodology. Long-term oxygen therapy (LTOT) is recommended for its mortality benefit for patients with COPD and other chronic respiratory diseases who have consistent evidence of significant hypoxaemia at rest (PaO2 ≤ 55 mm Hg or PaO2 ≤59 mm Hg in the presence of hypoxaemic sequalae) while in a stable state. Evidence does not support the use of LTOT for patients with COPD who have moderate hypoxaemia or isolated nocturnal hypoxaemia. In the absence of hypoxaemia, there is no evidence that oxygen provides greater palliation of breathlessness than air. Evidence does not support the use of supplemental oxygen therapy during pulmonary rehabilitation in those with COPD and exertional desaturation but normal resting arterial blood gases. Both positive and negative effects of LTOT have been described, including on quality of life. Education about how and when to use oxygen therapy in order to maximize its benefits, including the use of different delivery devices, expectations and limitations of therapy and information about hazards and risks associated with its use are key when embarking upon this treatment.</p>","PeriodicalId":21129,"journal":{"name":"Respirology","volume":" ","pages":"765-784"},"PeriodicalIF":6.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141620865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RespirologyPub Date : 2024-08-29DOI: 10.1111/resp.14821
Rodrigo Torres-Castro, Williams Hinojosa, Amaya Martínez-Meñaca, Ernest Sala Llinas, Josefa Jiménez Arjona, Joaquín Rueda Soriano, Agueda Aurtenetxe, Joan Albert Barberà, Pilar Escribano-Subías, Isabel Blanco
{"title":"Epidemiology of supplemental oxygen in patients with pulmonary hypertension.","authors":"Rodrigo Torres-Castro, Williams Hinojosa, Amaya Martínez-Meñaca, Ernest Sala Llinas, Josefa Jiménez Arjona, Joaquín Rueda Soriano, Agueda Aurtenetxe, Joan Albert Barberà, Pilar Escribano-Subías, Isabel Blanco","doi":"10.1111/resp.14821","DOIUrl":"https://doi.org/10.1111/resp.14821","url":null,"abstract":"<p><strong>Background and objective: </strong>Patients with pulmonary hypertension (PH) may present with hypoxaemia at rest or during daily activities. There is no epidemiological data on the prescription of long-term oxygen therapy (LTOT) in patients with PH. The study sought to analyse the prevalence and incidence of LTOT prescription among patients with pulmonary arterial hypertension (PAH) or chronic thromboembolic pulmonary hypertension (CTEPH) in Spain and to determine predictors for this prescription.</p><p><strong>Methods: </strong>A retrospective analysis was performed from the Spanish Registry of Pulmonary Arterial Hypertension (REHAP). Collected data included demographics and anthropometric measurements, functional class (FC), arterial blood gases, pulmonary function tests, haemodynamic measurements, six-minute walking distance (6MWD) and LTOT prescription. In addition, we assessed the prevalence and incidence of LTOT prescription by PH group and subtype and potential predictors for LTOT initiation in the first 5 years after diagnosis.</p><p><strong>Results: </strong>We analysed 4533 patients (69.9% PAH and 30.1% CTEPH), mostly female (64.5%), with a mean age of 53.0 ± 18.3 years. The prevalence of LTOT was 19.3% for all patients. The incidence of LTOT prescriptions decreased from 5.6% to 1.6% between 2010 and 2019, respectively. Predictors for LTOT prescription, excluding those that represent the indication for oxygen therapy were: FC (HR: 1.813), 6MWD (HR: 1.002), mean pulmonary arterial pressure (mPAP) (HR: 1.014), cardiac index (CI) (HR: 1.253), pulmonary vascular resistance (PVR) (HR: 1.023) and diffusing capacity of carbon monoxide (DL<sub>CO</sub>) (HR: 1.294).</p><p><strong>Conclusion: </strong>The prevalence of LTOT in PAH and CTEPH patients is close to 20%. FC, 6MWD, mPAP, CI, PVR and DL<sub>CO</sub> were predictors for LTOT prescription.</p>","PeriodicalId":21129,"journal":{"name":"Respirology","volume":" ","pages":""},"PeriodicalIF":6.6,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142111460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}