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All pulmonology briefings

The edition · Pulmonology

A wide pulmonary artery on CT says less in fibrosis, and sugammadex trimmed post-operative lung complications

In 252 patients with chronic lung disease and right heart catheterisation, CT artery size tracked pulmonary pressure well in airways disease but poorly in interstitial disease. A 3,498-patient trial found a small reduction in pulmonary complications with sugammadex.

The edition in brief

In the PVDOMICS cohort, 252 patients with chronic lung disease had CT pulmonary artery measurements compared with right heart catheter pressures; artery size was associated with pulmonary hypertension overall (AUC 0.79 for diameter) but performed worse in interstitial lung disease (PA:aorta AUC 0.70) than in obstructive disease (0.87), and the artery dilated less for the same pressure rise in fibrosis. An observational study of 1,169 adults with asthma found oscillometry-defined small airway dysfunction associated with obesity and with severe exacerbations, accounting for roughly a quarter to two-fifths of the obesity–exacerbation link. A meta-analysis of 13 studies (9,983 adults) found artificial intelligence applied to photoplethysmography detected obstructive sleep apnoea with pooled sensitivity 80% and specificity 77%, with wide uncertainty. The SNaPP trial, published in June, randomised 3,498 adults having major abdominal or thoracic surgery to sugammadex or neostigmine; pulmonary complications or death fell from 21.5% to 19.0% (RR 0.88, 95% CI 0.77 to 1.00), driven by atelectasis. The FDA recorded a supplement on 8 September to a generic triamcinolone acetonide application; the formulation and change are not specified. The pearl covers inhaler technique before escalation.

In this edition
01
Clinical update

CT pulmonary artery size predicted pulmonary hypertension less well in interstitial lung disease

Do not let a normal-sized pulmonary artery on CT rule out pulmonary hypertension in fibrotic lung disease.

2 min · ChestRead →
Primary outcome
Association and diagnostic accuracy of PA size for pulmonary hypertension
Effect
PA diameter AUC 0.79 overall; PA:aorta AUC 0.70 interstitial v 0.87 obstructive
02Regulatory

FDA records a supplement to a generic triamcinolone acetonide application

No action needed; this is an administrative supplement to a generic triamcinolone application.

1 minRead →
03Research

Small airway dysfunction linked obesity to severe asthma attacks

In asthma with obesity and frequent attacks, consider that spirometry may miss small airway disease.

1 min · The European respiratory journalRead →
04Research

AI on pulse-oximeter signals detected sleep apnoea with about 80% sensitivity

Use AI-analysed pulse signals, if at all, to prioritise sleep studies, not to replace them.

1 min · Journal of medical Internet researchRead →
05Pearl

Check the inhaler technique before stepping up treatment

Correct inhaler technique and adherence before stepping up asthma or COPD treatment.

1 minRead →
06
Practice changer

SNaPP: sugammadex modestly reduced pulmonary complications after major surgery

Consider sugammadex over neostigmine for patients at high pulmonary risk having major abdominal or thoracic surgery.

2 min · The Lancet. Respiratory medicineRead →
Primary outcome
Postoperative pulmonary complications or death to discharge or day 7
Effect
19.0% v 21.5%, RR 0.88 (0.77–1.00); atelectasis RR 0.86 (0.76–0.99)

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