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Respiratory symptoms of Swiss people with primary ciliary dyskinesia

Myrofora Goutaki, Leonie Hüsler, Yin Ting Lam, Helena M. Koppe, Andreas Jung, Romain Lazor, Loretta Müller, Swiss PCD Research Group, Eva S.L. Pedersen, Claudia E. Kuehni
ERJ Open Research 2022 8: 00673-2021; DOI: 10.1183/23120541.00673-2021
Myrofora Goutaki
1Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
2Division of Paediatric Respiratory Medicine and Allergology, Dept of Paediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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  • For correspondence: myrofora.goutaki@ispm.unibe.ch
Leonie Hüsler
1Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
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Yin Ting Lam
1Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
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Helena M. Koppe
1Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
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Andreas Jung
3Paediatric Pulmonology, University Children's Hospital Zurich, Zurich, Switzerland
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Romain Lazor
4Respiratory Medicine Dept, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
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Loretta Müller
2Division of Paediatric Respiratory Medicine and Allergology, Dept of Paediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
5Dept of BioMedical Research, University of Bern, Bern, Switzerland
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6For a list of the members of the Swiss PCD Research Group, see the Acknowledgements
Eva S.L. Pedersen
1Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
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Claudia E. Kuehni
1Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
2Division of Paediatric Respiratory Medicine and Allergology, Dept of Paediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Abstract

Background Mostly derived from chart reviews, where symptoms are recorded in a nonstandardised manner, clinical data about primary ciliary dyskinesia (PCD) are inconsistent, which leads to missing and unreliable information. We assessed the prevalence and frequency of respiratory and ear symptoms and studied differences by age and sex among an unselected population of Swiss people with PCD.

Methods We sent a questionnaire that included items from the FOLLOW-PCD standardised questionnaire to all Swiss PCD registry participants.

Results We received questionnaires from 74 (86%) out of 86 invited persons or their caregivers (median age 23 years, range 3–73 years), including 68% adults (≥18 years) and 51% females. Among participants, 70 (94%) reported chronic nasal symptoms; most frequently runny nose (65%), blocked nose (55%) or anosmia (38%). Ear pain and hearing problems were reported by 58% of the participants. Almost all (99%) reported cough and sputum production. The most common chronic cough complications were gastro-oesophageal reflux (n=11; 15%), vomiting (n=8; 11%) and urinary incontinence (n=6; 8%). Only nine (12%) participants reported frequent wheeze, which occurred mainly during infection or exercise, while 49 (66%) reported shortness of breath, and 9% even at rest or during daily activities. Older patients reported more frequent nasal symptoms and shortness of breath. We found no difference by sex or ultrastructural ciliary defect.

Conclusion This is the first study to describe patient-reported PCD symptoms. The consistent collection of standardised clinical data will allow us to better characterise the phenotypic variability of the disease and study disease course and prognosis.

Abstract

Detailed information about patient-reported PCD symptoms will help characterise the phenotypic variability of the disease and could inform the development of individualised treatment strategies for patients https://bit.ly/363Zb4T

Introduction

Primary ciliary dyskinesia (PCD) is a rare, genetic, multi-organ disease characterised by significant genetic and clinical variability [1, 2]. Approximately 50 genes have been implicated in causing PCD, and diagnostic advances in recent years have been tremendous [3–6]. PCD seems to have substantial phenotypic variability, yet we lack data to confirm this [2, 7, 8]. Since the disease impairs mucociliary clearance in the airways, most persons affected by PCD develop upper and lower respiratory symptoms [9–11]. PCD can manifest within a few hours of birth, usually with unspecific neonatal rhinitis and cough or unexplained respiratory distress [10, 12]. As patients grow, recurrent ear, sinus and lung infections are common and many patients develop chronic rhinosinusitis, hearing impairment and bronchiectasis [13–15].

Knowledge about symptom prevalence includes heterogeneous results derived mainly from hospital-based, single-centre studies [9]. Most of these studies described diagnostic data or other measurements, such as lung function test results, while only briefly reporting the prevalence of a few symptoms [9]. Symptom data were usually extracted from medical charts where they were not recorded in a standardised manner, leading to missing and unreliable information. Usually, study participants were either recruited from pulmonology departments for lower-airway focused studies or from ear, nose and throat (ENT) clinics for studies including only patients with moderate to severe ENT symptoms [9]. No studies so far have reported symptom frequency or severity, because this information is rarely recorded in charts. Although PCD evolves with age and symptoms can change from childhood to adulthood, most studies only include children or young adults [8, 11, 16, 17]. However, when studies included children and older adults, they rarely reported differences in symptom prevalence by age [9]. Similarly, data on phenotypic difference by sex are scarce, inconclusive and relate mostly to lung function [18]. In this study, we assessed the prevalence and frequency of respiratory and ear symptoms and how they differ by age and sex in an unselected population of Swiss people with PCD. We used a standardised questionnaire to allow for comparisons with other studies and longitudinal comparisons in the same population.

Methods

Study design and study population

Our study was a cross-sectional questionnaire survey nested in the Swiss PCD registry (CH-PCD) [19]. CH-PCD is a patient registry (www.clinicaltrials.gov, identifier NCT03606200) that collects demographic characteristics, diagnostic test results, clinical data and information about management of patients in Switzerland. It was established in 2013, and it provides data for national and international PCD monitoring and research [20–22]. Patients are identified by physicians, diagnostic facilities or local support groups, such as the Swiss PCD support group, Selbsthilfegruppe Kartagener Syndrom und Primäre Ciliäre Dyskinesie Deutschschweiz. CH-PCD was approved by the cantonal ethics committee of Bern in 2015 (KEK-BE: 060/2015). We obtained written informed consent from either people aged ≥14 years or from parents of participants aged <14 years. We followed the Strengthening the Reporting of Observational Studies in Epidemiology reporting recommendations [23].

All participants registered in CH-PCD who read German or French, signed an informed consent and had a valid postal address were invited to complete the questionnaire. We excluded one patient who spoke only Italian and four patients with invalid postal addresses. We sent the questionnaire by post to German-speaking participants in February 2020 and to French-speaking participants in July 2020. No later than 3 weeks after the original questionnaire mailing, we sent a reminder letter to those who had not yet returned the questionnaire. Five newly registered CH-PCD participants who enrolled during the study period received the questionnaire at the PCD outpatient clinic in Bern during their follow-up visit.

Questionnaire

We used an adapted version of the FOLLOW-PCD questionnaire (version 1.0), which asks about PCD-specific symptoms and health behaviours [24]. The questionnaire is part of the FOLLOW-PCD form for standardised clinical follow-up for PCD patients developed by an international, multidisciplinary group of PCD experts [24]. The first part of the questionnaire collects detailed information about the frequency and characteristics of upper and lower respiratory, ear and general symptoms during the past 3 months. The second part focuses on environmental exposures and health-related behaviours during the past year. Specifically, it collects information about school or work attendance, physical activity, active and passive smoking, nutrition and environmental exposures. There are three versions of the questionnaire designed for different age groups: 1) a parent/carer questionnaire for children aged 0–13 years; 2) an adolescent version for those aged 14–17 years; and 3) an adult questionnaire for participants aged ≥18 years. Most questions have pre-defined answer categories and free-text fields are included at the end of each section, so participants were able to add relevant details.

Our survey included all original FOLLOW-PCD questions without changes, and a few additional questions developed for this study. We added questions about extrapulmonary manifestations of PCD (e.g. laterality defects, congenital heart defects) and triggers for wheezing [25, 26]. We also added a section on physiotherapy, as well as more detailed questions about smoking and nutrition [27–29]. These topics are difficult to extract information about from medical charts since they are often inconsistently recorded. The Swiss PCD symptom survey was an excellent opportunity to assess this information directly from participants. We piloted the questionnaire among members of the Swiss PCD support group to ensure that the wording and content were well understood. The FOLLOW-PCD questionnaire was available in German and French. The additional questions were originally developed in German then translated into French by a native French speaker with knowledge about PCD.

Respiratory symptoms and demographic information

The questionnaire enquired about upper respiratory and ear symptoms (e.g. nasal symptoms, snoring, ear pain, hearing problems) and lower respiratory symptoms (e.g. cough, sputum production, wheezing, shortness of breath, chest pain) during the past 3 months. Questions about symptom frequency included five possible response categories: daily, often, sometimes, rarely and never. We defined symptoms reported often or daily as frequent. For some symptoms, we asked about attributes such as persistence, diurnal variability, possible triggers and quantity and colour of sputum. For adult patients, we assessed dyspnoea by modified Medical Research Council (mMRC) dyspnoea score. Sex, area of residence and diagnostic tests were retrieved from CH-PCD. We calculated age at survey from the questionnaire completion date.

Diagnostic information

Diagnosis of PCD has evolved over the years [30]. Therefore, CH-PCD includes patients diagnosed in different ways, depending on the year when they were diagnosed. For most patients, the diagnosis is based on a combination of tests in accordance with current recommendations, whereas for some, it was based on strong clinical suspicion (e.g. Kartagener syndrome) and the full diagnostic algorithm had not been completed. Using the European Respiratory Society's diagnostic guidelines, we defined definite PCD as a biallelic PCD-causing mutation or a hallmark defect identified by transmission electron microscopy (TEM) [31, 32]. We defined PCD as probable if there was either an abnormal light or high-frequency video microscopy finding; low (≤77 nL·min−1) nasal nitric oxide; non-hallmark defect identified by TEM; pathologic immunofluorescence finding; or suspicions from genetic findings for PCD. In the absence of test results indicating PCD diagnosis or an incomplete algorithm, we defined PCD as a clinical diagnosis if there was a strong clinical suspicion. We used the international consensus guidelines (Better Experimental Approaches to Treat (BEAT)-PCD TEM criteria) to categorise ciliary ultrastructural defects identified by TEM [32].

Statistical analysis

We described study population characteristics and prevalence, frequency and characteristics of reported symptoms overall and separately in children (aged <18 years) and adults, using median and interquartile range (IQR) for continuous variables and numbers and proportions for categorical variables. We compared prevalence and frequency of symptoms between males and females and by age using Chi-squared and t-tests. In a subsample of patients with abnormal TEM findings, we described and compared symptom frequency by ciliary ultrastructural defect. We performed all analyses using Stata (version 16; StataCorp, TX, USA).

Results

We had an excellent response rate, with 74 (86%) out of 86 invited persons returning the questionnaire (supplementary figure S1). The median (IQR) age at survey was 23 (15.2–50–6) years, with 50 adults and 24 adolescents and children participating (table 1). Most participants lived in German-speaking Swiss cantons (79%), and 38 (51%) were female.

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TABLE 1

Characteristics of Swiss children and adults with primary ciliary dyskinesia (PCD) participating in the survey (n=74)

PCD diagnosis

Half the participants had a definite PCD diagnosis based on current guidelines and 31% had a probable diagnosis with one or more tests indicating probable PCD. Among the remaining 13 (18%) patients, PCD was diagnosed clinically after excluding other diagnoses; however, these patients had not undergone a complete diagnostic algorithm; and nine out of the 13 participants had typical Kartagener syndrome. We include more information about diagnostic test availability and results for the study population in supplementary table S1.

Participant characteristics

32 patients reported situs inversus and two other laterality defects. Five patients reported congenital heart defects; retinitis pigmentosa and hydrocephalus were only reported by one patient each. No patient reported renal problems. Seven adult patients reported occasional or frequent tobacco smoking, while an additional four participants were ex-smokers. Passive exposure to tobacco smoke in households was common; it was reported by 18 (24%) participants. Age and sex did not differ between questionnaire respondents and nonrespondents (data not shown). Missing responses to individual symptoms questions were <5%.

Upper respiratory and ear symptoms

Among upper respiratory symptoms, chronic nasal symptoms were most reported (table 2 and figure 1) and by 94% of participants. Most complained about a runny (65%) or blocked (55%) nose. 46 (62%) people said their nasal symptoms persisted all the time. More than one-third of participants reported anosmia or hyposmia during the past 3 months. Despite the high prevalence of nasal problems, only 9% reported frequent snoring; most said they snored only rarely or sometimes (53%) or never (38%). Headaches were reported by 69% of participants; and among 45% of participants, even outside of infection. Only 9% reported headaches that worsened when bending down (a typical sign of sinus infection). Ear pain was reported by more than half of participants; ear discharge was less common (19%). Children and adults reported hearing problems (58%), which were frequent among 22% of participants.

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TABLE 2

Upper respiratory and ear symptoms of Swiss children and adults with primary ciliary dyskinesia (n=74)

FIGURE 1
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FIGURE 1

Prevalence and frequency of upper respiratory and ear symptoms by age group among Swiss participants with primary ciliary dyskinesia (n=74).

Lower respiratory symptoms

Among lower respiratory symptoms, cough was reported by almost all participants (99%), and frequently by 72% (table 3 and figure 2). 29 (39%) respondents reported complications from excessive cough, most commonly gastro-oesophageal reflux (15%), vomiting (11%) and urinary incontinence (8%). Nearly all (99%) also reported excessive sputum, yet only 57% said they expectorated it. Wheezing was reported by 62% of patients and frequently by 12%; the most common wheezing triggers were infection and exercise (31%), followed by cold air and weather changes (12%) and house dust and intense laughter or crying (9%). Shortness of breath was reported by two-thirds of participants and frequently by 20%; respondents reported that shortness of breath was triggered mainly by exercising (51%) or walking up the stairs. Shortness of breath during normal daily activities or rest was reported by 9%. Almost half of adult participants reported normal dyspnoea mMRC scores (0: I have shortness of breath with strenuous exercise only); two patients reported a high score (3: I stop for breath after walking about 100 m or after a few minutes on level ground); and no respondents reported the highest score (4: I am too breathless to leave the house). Chest pain was reported by 54% and usually only as sometimes or rarely. The most common triggers were exercise and infection, and 20% reported chest pain during normal daily activities or rest.

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TABLE 3

Lower respiratory symptoms of Swiss children and adults with primary ciliary dyskinesia (n=74)

FIGURE 2
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FIGURE 2

Prevalence and frequency of lower respiratory symptoms by age group among Swiss participants with primary ciliary dyskinesia (n=74).

Differences by age and sex

Patients who reported frequent nasal symptoms were older (mean 34.5 years, 95% CI 28.8–40.2 years) compared to patients who reported nasal symptoms less frequently or never (18.6 years, 13.19–23.9 years) (p=0.001). Anosmia was reported more frequently by adult patients (p=0.009). Figure 3 displays the frequency of upper respiratory and ear symptoms by age in the study population; it shows that all older patients reported nasal symptoms often or daily. For lower respiratory symptoms, patients who reported frequent shortness of breath were older (44.4 years, 32.9–55.9 years) compared to patients who reported it less frequently or never (26.9 years, 22.0–31.9 years) (p=0.001). Figure 4 shows that younger patients rarely reported daily shortness of breath compared to older patients (p=0.006). Chest pain was more commonly reported by adults (p=0.007). We found no difference in prevalence and frequency of respiratory symptoms by sex (supplementary figures S2 and S3).

FIGURE 3
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FIGURE 3

Frequency of upper respiratory and ear symptoms by age (in years) among Swiss participants with primary ciliary dyskinesia. Each dot represents one patient. The density of dots corresponds to how many people within the same age range reported a symptom of equal frequency (daily, often, sometimes, rarely or never).

FIGURE 4
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FIGURE 4

Frequency of lower respiratory symptoms by age (in years) among Swiss participants with primary ciliary dyskinesia. Each dot represents one patient. The density of dots corresponds to how many people within the same age range reported a symptom of equal frequency (daily, often, sometimes, rarely or never).

Differences by ultrastructural defect

Out of the 45 patients who had undergone electron microscopy analysis, 40 had a reported ultrastructural defect (supplementary table S1). The most common were class 1 defect in outer (ODA) and inner dynein arms (18%) followed by isolated ODA defects (15%). We found no difference in prevalence and frequency of reported respiratory and ear symptoms between different ultrastructural defect categories in this subgroup of 40 patients (supplementary figure S4).

Discussion

Ours is the first study about patient-reported PCD-specific symptoms. We found that people reported a variety of respiratory symptoms; the most common were nasal symptoms and cough and sputum production. Over half reported ear problems, particularly ear pain and hearing difficulties. One out of five reported frequent shortness of breath. Nasal problems and shortness of breath became more frequent with age; we found no differences between sexes.

A strength of our study is the use of the PCD-specific and standardised FOLLOW-PCD questionnaire [24], which led to homogeneous, standardised, in-depth data about symptoms reported directly from participants or parents of participants. Furthermore, we had a low proportion of missing data. Another strength was the representative study population and the high response rate. Since the study was nested in the national CH-PCD registry, it allowed for an unselected population of people with PCD, including children and adults [19].

Limitations

Although the sample size is reasonable for a rare disease in a small country, it did not allow for detailed subgroup analyses for more than two age groups. In addition, our cross-sectional survey represents a snapshot of the clinical status of Swiss patients with PCD and did not allow the study of symptom variations by season. Repeated evaluations in different periods would be needed to get a better representation of the seasonal changes in symptoms. It is possible that our results were influenced by lifestyle and healthcare changes during the severe acute respiratory syndrome coronavirus 2 pandemic. However, over three-quarters of the questionnaires were returned by March 2020, so we suspect small effects. The FOLLOW-PCD questionnaire was originally developed to be completed during clinical follow-up, and this is the first study where it was sent as a postal survey. It has also been used as a web-based questionnaire in the COVID-PCD study [33, 34]. A potential bias for its use as a postal survey could be selection bias, as patients more interested in research or with more severe symptoms might be more prone to participate. However, as the response rate was extremely high, the risk of this bias is low.

Comparison with other studies

Previous data about PCD clinical symptoms come mostly from nonstandard reporting found during chart reviews. Therefore, it is not easy to compare prior studies with our results. Furthermore, few questionnaire-based studies focus on quality of life or the psychosocial impact of the disease [35]. In fact, only one prior questionnaire survey assessed symptoms and the psychosocial impact of PCD among 93 people with PCD in the UK [36]. Through the UK PCD support group, the study took place 18 years before the present study, and used the St George's Respiratory Questionnaire (SGRQ) [37]. The authors reported that respiratory symptom scores declined after the age of 25 years. They also found that almost all participants reported “a runny nose and nasal congestion”, while “pain over the sinuses” and “headaches” were less frequent [36]. We did not find an increase of all symptoms with advancing age. However, direct comparisons are not feasible due to incommensurable differences between SGQR and the FOLLOW-PCD questionnaire [24]. In our study, 14% of adult participants smoked cigarettes daily or occasionally. Smoking prevalence was much lower than in the general Swiss population (23.5% for persons aged >15 years) [38], but higher than previous reports in people with cystic fibrosis [39].

Detailed standardised information about PCD symptoms is important for studying phenotypic variability of PCD. Recent studies suggest that PCD is not a mild disease. Most Swiss patients reported frequent nasal symptoms, cough and sputum, and 20% reported shortness of breath as a frequent occurrence triggered by infections, exercise and regular activities. We showed that nasal symptoms deteriorate with age; all older adults report them frequently. Therefore, since upper airway management remains important, regular multidisciplinary follow-up is also needed for adults. Our survey also highlighted how different patients experience respiratory symptoms and that there are patients who report mild symptoms only. This could partly be explained by the fact that people with PCD are accustomed to chronic symptoms, consider them normal and under-report these symptoms. Yet, it could also indicate distinct PCD phenotypes. Standardising detailed clinical information about PCD symptoms and using appropriate methodological approaches in large collaborative studies are needed to better characterise the phenotypic variability of PCD and describe phenotypic groups [21, 34, 40, 41].

For the first time, this study provides patient-reported data about a wide range of PCD-specific symptoms. Standardised data collected throughout life with repeated surveys will allow the study of the disease course and the description of associations between phenotypes and structural and functional respiratory changes. A better understanding of the variability of the clinical picture can inform management and support individualised treatment approaches in the future.

Supplementary material

Supplementary Material

Please note: supplementary material is not edited by the Editorial Office, and is uploaded as it has been supplied by the author.

Supplementary material 00673-2021.SUPPLEMENT

Acknowledgements

We want to thank all the people with primary ciliary dyskinesia (PCD) in Switzerland and their families for participating in the survey and the CH-PCD. We are also grateful to the Swiss PCD support group which closely collaborates with us. We thank Eugenie Collaud (Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland) for her contributions to the French translation of the questionnaire and Kristin Marie Bivens (ISPM, University of Bern) for her editorial assistance.

The current Swiss PCD research group includes (in alphabetical order): Juerg Barben (Kantonsspital St Gallen), Sylvain Blanchon (University Hospital of Lausanne), Jean-Louis Blouin (University Hospitals of Geneva), Marina Bullo (Inselspital Bern), Carmen Casaulta (Inselspital Bern), Cristian Clarenbach (University Hospital of Zurich), Myrofora Goutaki (ISPM, University of Bern), Nicolas Gürtler (University Hospital of Basel, Switzerland), Beat Haenni (Institute of Anatomy Bern), Andreas Hector (University Children's Hospital Zurich), Michael Hitzler (Children's Hospital Lucerne), Andreas Jung (University Children's Hospital Zurich), Lilian Junker (Hospital Thun), Elisabeth Kieninger (Inselspital Bern), Claudia E. Kuehni (ISPM, University of Bern), Yin Ting Lam (ISPM, University of Bern), Philipp Latzin (Inselspital Bern), Romain Lazor (University Hospital of Lausanne), Dagmar Lin (Bern University Hospital), Marco Lurà (Children's Hospital Lucerne), Loretta Müller (Inselspital Bern), Eva Pedersen (ISPM, University of Bern), Nicolas Regamey (Children's Hospital Lucerne), Isabelle Rochat (University Hospital of Lausanne), Daniel Schilter (Quartier Bleu Bern), Iris Schmid (Quartier Bleu Bern), Bernhard Schwizer (Quartier Bleu Bern), Andrea Stokes (Inselspital Bern), Daniel Trachsel (University Children's Hospital Basel), Stefan A. Tschanz (Institute of Anatomy, University of Bern), Johannes Wildhaber (University of Fribourg) and Maura Zanolari (Hospital of Bellinzona).

Footnotes

  • Provenance: Submitted article, peer reviewed.

  • Author contributions: M. Goutaki and C.E. Kuehni developed the concept and designed the study. M. Goutaki, L. Hüsler and Y.T. Lam organised the survey, then cleaned and standardised the data. M. Goutaki performed the statistical analyses and drafted the manuscript. All authors commented and revised the manuscript. M. Goutaki and C.E. Kuehni take final responsibility for content.

  • Conflict of interest: M. Goutaki reports support for the present manuscript received from the Swiss National Science Foundation, and is co-chair of the BEAT-PCD ERS clinical research collaboration and chair of the ERS paediatric epidemiology group, outside the submitted work. The remaining authors have nothing to disclose.

  • Support statement: This study was supported by a Swiss National Science Foundation Ambizione fellowship (PZ00P3_185923) and by a Swiss National Science Foundation project grant (320030B_192804). Primary ciliary dyskinesia (PCD) research at ISPM Bern also receives funding from the Lung League Bern. The authors participate in the BEAT-PCD clinical research collaboration, supported by the European Respiratory Society, and they are supporting members of the ERN-LUNG (PCD core). Funding information for this article has been deposited with the Crossref Funder Registry.

  • Received November 29, 2021.
  • Accepted February 6, 2022.
  • Copyright ©The authors 2022
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References

  1. ↵
    1. Brennan SK,
    2. Ferkol TW,
    3. Davis SD
    . Emerging genotype–phenotype relationships in primary ciliary dyskinesia. Int J Mol Sci 2021; 22: 8272. doi:10.3390/ijms22158272
    OpenUrl
  2. ↵
    1. Goutaki M,
    2. Pedersen ESL
    . Phenotype–genotype associations in primary ciliary dyskinesia: where do we stand? Eur Respir J 2021; 58: 2100392. doi:10.1183/13993003.00392-2021
    OpenUrlAbstract/FREE Full Text
  3. ↵
    1. Höben IM,
    2. Hjeij R,
    3. Olbrich H, et al.
    Mutations in C11orf70 cause primary ciliary dyskinesia with randomization of left/right body asymmetry due to defects of outer and inner dynein arms. Am J Hum Genet 2018; 102: 973–984. doi:10.1016/j.ajhg.2018.03.025
    OpenUrl
    1. Horani A,
    2. Ferkol TW,
    3. Dutcher SK, et al.
    Genetics and biology of primary ciliary dyskinesia. Paediatr Respir Rev 2016; 18: 18–24. doi:10.1016/j.prrv.2015.09.001
    OpenUrlCrossRefPubMed
    1. Lucas JS,
    2. Davis SD,
    3. Omran H, et al.
    Primary ciliary dyskinesia in the genomics age. Lancet Respir Med 2020; 8: 202–216. doi:10.1016/S2213-2600(19)30374-1
    OpenUrl
  4. ↵
    1. Olcese C,
    2. Patel MP,
    3. Shoemark A, et al.
    X-linked primary ciliary dyskinesia due to mutations in the cytoplasmic axonemal dynein assembly factor PIH1D3. Nat Commun 2017; 8: 14279. doi:10.1038/ncomms14279
    OpenUrlCrossRef
  5. ↵
    1. Shoemark A,
    2. Rubbo B,
    3. Legendre M, et al.
    Topological data analysis reveals genotype–phenotype relationships in primary ciliary dyskinesia. Eur Respir J 2021; 58: 2002359. doi:10.1183/13993003.02359-2020
    OpenUrlAbstract/FREE Full Text
  6. ↵
    1. Davis SD,
    2. Ferkol TW,
    3. Rosenfeld M, et al.
    Clinical features of childhood primary ciliary dyskinesia by genotype and ultrastructural phenotype. Am J Respir Crit Care Med 2015; 191: 316–324. doi:10.1164/rccm.201409-1672OC
    OpenUrlCrossRefPubMed
  7. ↵
    1. Goutaki M,
    2. Meier AB,
    3. Halbeisen FS, et al.
    Clinical manifestations in primary ciliary dyskinesia: systematic review and meta-analysis. Eur Respir J 2016; 48: 1081–1095. doi:10.1183/13993003.00736-2016
    OpenUrlAbstract/FREE Full Text
  8. ↵
    1. Behan L,
    2. Dimitrov BD,
    3. Kuehni CE, et al.
    PICADAR: a diagnostic predictive tool for primary ciliary dyskinesia. Eur Respir J 2016; 47: 1103–1112. doi:10.1183/13993003.01551-2015
    OpenUrlAbstract/FREE Full Text
  9. ↵
    1. Leigh MW,
    2. Ferkol TW,
    3. Davis SD, et al.
    Clinical features and associated likelihood of primary ciliary dyskinesia in children and adolescents. Ann Am Thorac Soc 2016; 13: 1305–1313. doi:10.1513/AnnalsATS.201511-748OC
    OpenUrlCrossRef
  10. ↵
    1. Mullowney T,
    2. Manson D,
    3. Kim R, et al.
    Primary ciliary dyskinesia and neonatal respiratory distress. Pediatrics 2014; 134: 1160–1166. doi:10.1542/peds.2014-0808
    OpenUrlAbstract/FREE Full Text
  11. ↵
    1. Bequignon E,
    2. Dupuy L,
    3. Zerah-Lancner F, et al.
    Critical evaluation of sinonasal disease in 64 adults with primary ciliary dyskinesia. J Clin Med 2019; 8: 619. doi:10.3390/jcm8050619
    OpenUrl
    1. Prulière-Escabasse V,
    2. Coste A,
    3. Chauvin P, et al.
    Otologic features in children with primary ciliary dyskinesia. Arch Otolaryngol Head Neck Surg 2010; 136: 1121–1126. doi:10.1001/archoto.2010.183
    OpenUrlCrossRefPubMed
  12. ↵
    1. Shah A,
    2. Shoemark A,
    3. MacNeill SJ, et al.
    A longitudinal study characterising a large adult primary ciliary dyskinesia population. Eur Respir J 2016; 48: 441–450. doi:10.1183/13993003.00209-2016
    OpenUrlAbstract/FREE Full Text
  13. ↵
    1. Zawawi F,
    2. Shapiro AJ,
    3. Dell S, et al.
    Otolaryngology manifestations of primary ciliary dyskinesia: a multicenter study. Otolaryngol Head Neck Surg 2021: 166; 540–547. doi:10.1177/1945998211019320
    OpenUrl
  14. ↵
    1. Kreicher KL,
    2. Schopper HK,
    3. Naik AN, et al.
    Hearing loss in children with primary ciliary dyskinesia. Int J Pediatr Otorhinolaryngol 2018; 104: 161–165. doi:10.1016/j.ijporl.2017.11.005
    OpenUrlPubMed
  15. ↵
    1. Frija-Masson J,
    2. Bassinet L,
    3. Honore I, et al.
    Clinical characteristics, functional respiratory decline and follow-up in adult patients with primary ciliary dyskinesia. Thorax 2017; 72: 154–160. doi:10.1136/thoraxjnl-2015-207891
    OpenUrlAbstract/FREE Full Text
  16. ↵
    1. Goutaki M,
    2. Eich MO,
    3. Halbeisen FS, et al.
    The Swiss Primary Ciliary Dyskinesia registry: objectives, methods and first results. Swiss Med Wkly 2019; 149: w20004. doi:10.4414/smw.2019.20004
    OpenUrlCrossRef
  17. ↵
    1. Ardura-Garcia C,
    2. Goutaki M,
    3. Carr SB, et al.
    Registries and collaborative studies for primary ciliary dyskinesia in Europe. ERJ Open Res 2020; 6: 00005-2020. doi:10.1183/23120541.00005-2020
    OpenUrlAbstract/FREE Full Text
  18. ↵
    1. Goutaki M,
    2. Maurer E,
    3. Halbeisen FS, et al.
    The international primary ciliary dyskinesia cohort (iPCD Cohort): methods and first results. Eur Respir J 2017; 49: 1601181. doi:10.1183/13993003.01181-2016
    OpenUrlAbstract/FREE Full Text
  19. ↵
    1. Werner C,
    2. Lablans M,
    3. Ataian M, et al.
    An international registry for primary ciliary dyskinesia. Eur Respir J 2016; 47: 849–859. doi:10.1183/13993003.00776-2015
    OpenUrlAbstract/FREE Full Text
  20. ↵
    STROBE statement – checklist of items that should be included in reports of observational studies (STROBE initiative). Int J Public Health 2008; 53: 3–4. doi:10.1007/s00038-007-0239-9
    OpenUrlCrossRefPubMed
  21. ↵
    1. Goutaki M,
    2. Papon JF,
    3. Boon M, et al.
    Standardised clinical data from patients with primary ciliary dyskinesia: FOLLOW-PCD. ERJ Open Res 2020; 6: 00237-2019. doi:10.1183/23120541.00237-2019
    OpenUrlAbstract/FREE Full Text
  22. ↵
    1. Kennedy MP,
    2. Omran H,
    3. Leigh MW, et al.
    Congenital heart disease and other heterotaxic defects in a large cohort of patients with primary ciliary dyskinesia. Circulation 2007; 115: 2814–2821. doi:10.1161/CIRCULATIONAHA.106.649038
    OpenUrlAbstract/FREE Full Text
  23. ↵
    1. Shapiro AJ,
    2. Davis SD,
    3. Ferkol T, et al.
    Laterality defects other than situs inversus totalis in primary ciliary dyskinesia: insights into situs ambiguus and heterotaxy. Chest 2014; 146: 1176–1186. doi:10.1378/chest.13-1704
    OpenUrlCrossRefPubMed
  24. ↵
    1. Schofield LM,
    2. Duff A,
    3. Brennan C
    . Airway clearance techniques for primary ciliary dyskinesia; is the cystic fibrosis literature portable? Paediatr Respir Rev 2018; 25: 73–77. doi:10.1016/j.prrv.2017.03.011
    OpenUrlCrossRef
    1. Goutaki M,
    2. Halbeisen FS,
    3. Spycher BD, et al.
    Growth and nutritional status, and their association with lung function: a study from the international Primary Ciliary Dyskinesia Cohort. Eur Respir J 2017; 50: 1701659. doi:10.1183/13993003.01659-2017
    OpenUrlAbstract/FREE Full Text
  25. ↵
    1. Marino LV,
    2. Harris A,
    3. Johnstone C, et al.
    Characterising the nutritional status of children with primary ciliary dyskinesia. Clin Nutr 2019; 38: 2127–2135. doi:10.1016/j.clnu.2018.08.034
    OpenUrl
  26. ↵
    1. Halbeisen F,
    2. Goutaki M,
    3. Maurer E, et al.
    Evolution of primary ciliary dyskinesia (PCD) diagnostic testing in Europe. Eur Respir J 2017; 50: Suppl. 61, PA1846. doi:10.1183/1393003.congress-2017.PA1846
    OpenUrl
  27. ↵
    1. Lucas JS,
    2. Barbato A,
    3. Collins SA, et al.
    European Respiratory Society guidelines for the diagnosis of primary ciliary dyskinesia. Eur Respir J 2017; 49: 1601090. doi:10.1183/13993003.01090-2016
    OpenUrlAbstract/FREE Full Text
  28. ↵
    1. Shoemark A,
    2. Boon M,
    3. Brochhausen C, et al.
    International consensus guideline for reporting transmission electron microscopy results in the diagnosis of primary ciliary dyskinesia (BEAT PCD TEM criteria). Eur Respir J 2020; 55: 1900725. doi:10.1183/13993003.00725-2019
    OpenUrlAbstract/FREE Full Text
  29. ↵
    1. Pedersen ESL,
    2. Goutaki M,
    3. Harris AL, et al.
    SARS-CoV-2 infections in people with primary ciliary dyskinesia: neither frequent, nor particularly severe. Eur Respir J 2021; 58: 2004548. doi:10.1183/13993003.04548-2020
    OpenUrlAbstract/FREE Full Text
  30. ↵
    1. Pedersen ESL,
    2. Collaud ENR,
    3. Mozun R, et al.
    COVID-PCD: a participatory research study on the impact of COVID-19 in people with primary ciliary dyskinesia. ERJ Open Res 2021; 7: 00843-2020. doi:10.1183/23120541.00843-2020
    OpenUrlAbstract/FREE Full Text
  31. ↵
    1. Behan L,
    2. Leigh MW,
    3. Dell SD, et al.
    Validation of pediatric health-related quality of life instruments for primary ciliary dyskinesia (QOL-PCD). Pediatr Pulmonol 2019; 54: 2011–2020. doi:10.1002/ppul.24507
    OpenUrlPubMed
  32. ↵
    1. McManus IC,
    2. Mitchison HM,
    3. Chung EM, et al.
    Primary ciliary dyskinesia (Siewert's/Kartagener's syndrome): respiratory symptoms and psycho-social impact. BMC Pulm Med 2003; 3: 4. doi:10.1186/1471-2466-3-4
    OpenUrlCrossRefPubMed
  33. ↵
    1. Jones PW,
    2. Quirk FH,
    3. Baveystock CM
    . The St George's Respiratory Questionnaire. Respir Med 1991; 85: Suppl. B, 25–31. doi:10.1016/S0954-6111(06)80166-6
    OpenUrlCrossRefPubMed
  34. ↵
    1. Achtermann W,
    2. Gmel G,
    3. Kuendig H
    . Suchtmonitoring Schweiz Continuous Rolling Survey of Addictive Behaviours and Related Risks (CoRolAR) (Dataset). Addiction Suisse, IBSF Schweiz Institut für Begleit und Sozialforschung. Lausanne, Distributed by FORS, 2019.
  35. ↵
    1. Mc Ewan FA,
    2. Hodson ME,
    3. Simmonds NJ
    . The prevalence of “risky behaviour” in adults with cystic fibrosis. J Cyst Fibros 2012; 11: 56–58. doi:10.1016/j.jcf.2011.09.002
    OpenUrlCrossRefPubMed
  36. ↵
    1. Goutaki M,
    2. Crowley S,
    3. Dehlink E, et al.
    The BEAT-PCD (Better Experimental Approaches to Treat Primary Ciliary Dyskinesia) clinical research collaboration. Eur Respir J 2021; 57: 2004601. doi:10.1183/13993003.04601-2020
    OpenUrlAbstract/FREE Full Text
  37. ↵
    1. Goutaki M,
    2. Lam YT,
    3. Alexandru M, et al.
    Study protocol: the ear-nose-throat (ENT) prospective international cohort of patients with primary ciliary dyskinesia (EPIC-PCD). BMJ Open 2021; 11: e051433. doi:10.1136/bmjopen-2021-051433
    OpenUrlAbstract/FREE Full Text
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Respiratory symptoms of Swiss people with primary ciliary dyskinesia
Myrofora Goutaki, Leonie Hüsler, Yin Ting Lam, Helena M. Koppe, Andreas Jung, Romain Lazor, Loretta Müller, Swiss PCD Research Group, Eva S.L. Pedersen, Claudia E. Kuehni
ERJ Open Research Apr 2022, 8 (2) 00673-2021; DOI: 10.1183/23120541.00673-2021

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Respiratory symptoms of Swiss people with primary ciliary dyskinesia
Myrofora Goutaki, Leonie Hüsler, Yin Ting Lam, Helena M. Koppe, Andreas Jung, Romain Lazor, Loretta Müller, Swiss PCD Research Group, Eva S.L. Pedersen, Claudia E. Kuehni
ERJ Open Research Apr 2022, 8 (2) 00673-2021; DOI: 10.1183/23120541.00673-2021
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