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Mucociliary transport using ^99mTc-albumin colloid: a reliable screening test for primary ciliary dyskinesia

¹ Department of Pediatrics, University of Leuven, Leuven, Belgium
² Department of Nuclear Medicine, University of Leuven, Leuven, Belgium
³ Department of Otorhinolaryngology & Head and Neck Surgery, University of Leuven, Leuven, Belgium

Correspondence to:
Correspondence to:
Professor K De Boeck
Department of Pediatrics, University Hospital Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium; christiane.deboeck{at}uz.kuleuven.ac.be

Background: A study was undertaken to assess the reliability of the nasal mucociliary transport test using ^99mTc-albumin colloid as a screening test for primary ciliary dyskinesia (PCD) and to compare it with the gold standard nasal biopsy for study of ciliary motility and ultrastructure.

Methods: During a 4 year period both tests were performed in 55 children referred with persistent or recurrent respiratory tract infections. Their median age was 4 years (range 1 month to 15 years).

Results: The nasal biopsy results were as follows: PCD, n = 8; secondary ciliary dyskinesia (SCD), n = 19; normal, n = 28. The mucociliary transport test was abnormal in 29 patients (all 8 with PCD, 7/19 with SCD, and 14/28 with a normal biopsy). The sensitivity of the mucociliary transport test to diagnose PCD was therefore 100% (8/8) (95% exact confidence limits 63.06 to 100.00); the specificity was only 55% (26/47) (40.95 to 69.89). The negative predictive value was 100% (26/26) (86.77 to 100.00) and the positive predictive value was 28% (8/29) (12.37 to 47.24).

Conclusion: Mucociliary transport is a non-invasive screening test that can be performed even in infants. The sensitivity of the test is high but its specificity is low. A normal test result excludes PCD.

Abbreviations: PCD, primary ciliary dyskinesia; SCD, secondary ciliary dyskinesia

Keywords: primary ciliary dyskinesia; screening test; mucociliary transport; diagnosis

This article has been cited by other articles:

				J. K. Marthin, J. Mortensen, T. Pressler, and K. G. Nielsen Pulmonary Radioaerosol Mucociliary Clearance in Diagnosis of Primary Ciliary Dyskinesia Chest, September 1, 2007; 132(3): 966 - 976. [Abstract] [Full Text] [PDF]