Changes in chest wall motion with removal of Nuss bar in repaired pectus excavatum - a cohort study.

Oswald, Nicola and Jalal, Zara and Kadiri, Salma and Naidu, Babu V (2019) Changes in chest wall motion with removal of Nuss bar in repaired pectus excavatum - a cohort study. Journal of cardiothoracic surgery, 14 (1). p. 4. ISSN 1749-8090. This article is available to all UHB staff and students via ASK Discovery tool http://tinyurl.com/z795c8c by using their UHB Athens login IDs

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Abstract

BACKGROUND

The effects of the Nuss procedure on chest wall motion and spirometry have previously been described; we aimed to describe the effects of removal of the Nuss bar.

METHODS

We studied 9 patients just prior to and 6 weeks after Nuss bar removal. Regional chest volume changes, synchrony of respiratory movement and spirometry were recorded using optoelectronic plethysmography (OEP) and compared. Recordings were performed at rest and exercise during cycle ergometry.

RESULTS

There were small but statistically significant changes in tidal volumes of the diaphragmatic ribcage compartment during exercise (+ 48 ml, p = 0.038, Cohen's d = 0.12) and percentage contribution of the diaphragmatic ribcage to total tidal volumes at rest (+ 2.7 percentage points, p = 0.038, Cohen's d = 0.12). Synchrony of respiratory movements at rest and during exercise was unchanged following Nuss bar removal. There were no significant changes in spirometry and exercise capacity.

CONCLUSIONS

The effects of Nuss bar removal on diaphragmatic ribcage motion are detectable but small and unlikely to be of clinical significance. No change in exercise capacity should be expected after Nuss bar removal.

TRIAL REGISTRATION

Registered at ClinicalTrials.gov, identifier NCT02958683 , registered 5th August 2016, first patient enrolled July 2016, retrospectively registered.

Item Type: Article
Additional Information: This article is available to all UHB staff and students via ASK Discovery tool http://tinyurl.com/z795c8c by using their UHB Athens login IDs
Subjects: WF Respiratory system. Respiratory medicine
Divisions: Emergency Services > Elderly
Planned IP Care > Thoracic Surgery
Related URLs:
Depositing User: Mr Philip O'Reilly
Date Deposited: 19 Mar 2019 12:45
Last Modified: 19 Mar 2019 12:45
URI: http://www.repository.heartofengland.nhs.uk/id/eprint/1939

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