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Bengtsson, Caroline
Publications (7 of 7) Show all publications
Bengtsson, C., Jonsson, L., Holmstrom, M., Hellgren, J., Franklin, K., Gislason, T., . . . Lindberg, E. (2019). Incident Chronic Rhinosinusitis Is Associated With Impaired Sleep Quality: Results of the RHINE Study. Journal of Clinical Sleep Medicine (JCSM), 15(6), 899-905, Article ID PII jc-18-00575.
Open this publication in new window or tab >>Incident Chronic Rhinosinusitis Is Associated With Impaired Sleep Quality: Results of the RHINE Study
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2019 (English)In: Journal of Clinical Sleep Medicine (JCSM), ISSN 1550-9389, E-ISSN 1550-9397, Vol. 15, no 6, p. 899-905, article id PII jc-18-00575Article in journal (Refereed) Published
Abstract [en]

Study Objectives: Chronic rhinosinusitis (CRS) is a common inflammatory disease of the nasal cavity and paranasal sinuses. Associations between CRS and poor sleep quality have been reported. This 10-year follow-up study investigates possible associations between incident CRS and sleep quality. Methods: A questionnaire was sent to 16,500 individuals in Sweden, Norway, Denmark, Iceland and Estonia in 2000. It included questions on airway diseases, age, sex, body mass index, smoking habits, comorbidities, education and sleep quality. In 2010, a second questionnaire was sent to the same individuals, with a response rate of 53%. A subgroup of 5,145 individuals without nasal symptoms in 2000 was studied. Multiple logistic regression was performed to examine associations between CRS (defined according to the European position paper on rhinosinusitis and nasal polyps epidemiological criteria) at follow-up and sleep quality, with adjustment for potential confounders. Individuals with the respective sleep problem at baseline were excluded. Results: Over 10 years, 141 (2.7%) of the individuals without nasal symptoms in 2000 had developed CRS. CRS was associated with difficulties inducing sleep (adjusted odds ratio 2.81 [95% CI 1.67-4.70]), difficulties maintaining sleep (2.07 [1.35-3.18]), early morning awakening (3.03 [1.91-4.81]), insomnia (2.21 [1.46-3.35]), excessive daytime sleepiness (2.85 [1.79-4.55]), and snoring (3.31 [2.07-5.31]). Three insomnia symptoms at baseline increased the risk of CRS at follow-up by 5.00 (1.93-12.99). Conclusions: Incident CRS is associated with impaired sleep quality and excessive daytime sleepiness. Insomnia symptoms may be a risk factor for the development of CRS.

Place, publisher, year, edition, pages
AMER ACAD SLEEP MEDICINE, 2019
Keywords
chronic rhinosinusitis, CRS, epidemiology, insomnia, sleep quality
National Category
Otorhinolaryngology
Identifiers
urn:nbn:se:uu:diva-389988 (URN)10.5664/jcsm.7846 (DOI)000471747600013 ()31138385 (PubMedID)
Funder
Forte, Swedish Research Council for Health, Working Life and WelfareSwedish Heart Lung FoundationSwedish Asthma and Allergy Association
Available from: 2019-08-02 Created: 2019-08-02 Last updated: 2019-12-19Bibliographically approved
Bengtsson, C. (2019). Nasal obstruction – impact on insomnia symptoms and sleep-disordered breathing. (Doctoral dissertation). Uppsala: Acta Universitatis Upsaliensis
Open this publication in new window or tab >>Nasal obstruction – impact on insomnia symptoms and sleep-disordered breathing
2019 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Background: Nasal obstruction is very common in the general population, but the role of nasal obstruction in sleep quality is not clear. Nasal obstruction is also prevalent in patients with obstructive sleep apnoea (OSA) and may contribute to poor adherence to continuous positive airway pressure (CPAP) treatment.

Aims: To investigate the impact of subjective nasal obstruction, as a single symptom or as part of chronic rhinosinusitis (CRS), in both objective and subjective sleep quality, in three different population based cohorts. Another aim was to investigate the usefulness of the Sinonasal Outcome Test-22 (SNOT-22) and peak nasal inspiratory flow (PNIF) in the treatment of OSA patients.

Methods and results: In paper I (the SHE-study), a community-based sample of 400 women were investigated with polysomnography and questions on sleep quality, daytime- and nasal symptoms. Women with nasal obstruction at night (n=30) had significantly higher prevalence of several night time symptoms and excessive daytime sleepiness (EDS), but the polysomnography was normal.

In paper II (the GA2LEN study, n= 26, 647) and paper III (RHINE II and RHINE III studies, n= 5, 145) questionnaires on sleep quality, daytime- and nasal symptoms were used, and CRS was defined according to the epidemiological diagnostic criteria of the European Position Paper of Rhinosinusitis and Nasal Polyps (EPOS). In paper II, sleep problems were highly prevalent in CRS, and there was a dose-response relationship between the disease severity of CRS and sleep problems. The addition of persistent allergic rhinitis to CRS further increased the risk of sleep problems.

In paper III, 2.7% of individuals without nasal symptoms at baseline had developed CRS at follow-up 10 years later. Strong associations between incident CRS and impaired sleep quality and EDS were found. Three insomnia symptoms at baseline increased the risk for CRS at follow-up.

In paper IV, 197 OSA patients initiating CPAP treatment were investigated before starting CPAP and at the follow-up 3-4 weeks later. SNOT-22 scores were generally high among all OSA patients indicating a large sinonasal disease burden, and improved among those with CPAP adherence ≥ 4 hours/night. A low PNIF value increased the risk for poor CPAP adherence.

Conclusions: Subjective nasal obstruction at night impairs subjective sleep quality in women, but does not affect objective sleep quality. CRS impairs subjective sleep quality, and insomnia symptoms may be a risk factor for CRS. SNOT-22 and PNIF may be useful tools in the treatment of OSA patients.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2019. p. 95
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1604
Keywords
Chronic rhinosinusitis, CRS, nasal obstruction, sleep, sleep apnoea.
National Category
Otorhinolaryngology
Research subject
Oto-Rhino-Laryngology
Identifiers
urn:nbn:se:uu:diva-394085 (URN)978-91-513-0779-4 (ISBN)
Public defence
2019-11-29, Skoogsalen, ingång 78/79, 1 tr, Akademiska sjukhuset, Uppsala, 09:00 (Swedish)
Opponent
Supervisors
Available from: 2019-11-07 Created: 2019-10-12 Last updated: 2019-11-27
Bengtsson, C., Lindberg, E., Jonsson, L., Holmström, M., Sundbom, F., Hedner, J., . . . Janson, C. (2017). Chronic rhinosinusitis impairs sleep quality: Results of the GA(2)LEN study. Sleep, 40(1), Article ID zsw021.
Open this publication in new window or tab >>Chronic rhinosinusitis impairs sleep quality: Results of the GA(2)LEN study
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2017 (English)In: Sleep, ISSN 0161-8105, E-ISSN 1550-9109, Vol. 40, no 1, article id zsw021Article in journal (Refereed) Published
Abstract [en]

STUDY OBJECTIVES: To analyse the prevalence of sleep problems in subjects with CRS and to determine whether the disease severity of CRS affects sleep quality.

METHODS: Questionnaires were sent to a random sample of 45 000 adults in four Swedish cities. Questions on CRS, asthma, allergic rhinitis, co-morbidities, tobacco use, educational level and physical activity were included. CRS was defined according to the European Position Paper on Rhinosinusitis and Nasal Polyps (EPOS) epidemiological criteria. The disease severity of CRS was defined by the number of reported CRS symptoms. Sleep quality was assessed using the Basic Nordic Sleep Questionnaire.

RESULTS: Of the 26 647 subjects, 2249 (8.4%) had CRS. Reported sleep problems were 50-90% more common among subjects with CRS compared with those without or the total population. The prevalence of reported sleep problems increased in conjunction with the severity of CRS. After adjusting for gender, BMI, age, tobacco use, asthma, somatic diseases, physical activity level and educational level, participants with four symptoms of CRS (compared with subjects without CRS symptoms) displayed a higher risk of snoring (adj. OR (95% CI): 3.13 (2.22-4.41)), difficulties inducing sleep (3.98 (2.94-5.40)), difficulties maintaining sleep (3.44 (2.55-4.64)), early morning awakening (4.71 (3.47-6.38)) and excessive daytime sleepiness (4.56 (3.36-6.18)). The addition of persistent allergic rhinitis to CRS further increased the risk of sleep problems.

CONCLUSIONS: Sleep problems are highly prevalent among subjects with CRS. The disease severity of CRS negatively affects sleep quality.

National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:uu:diva-311304 (URN)10.1093/sleep/zsw021 (DOI)000394125700021 ()27692055 (PubMedID)
Funder
Swedish Heart Lung Foundation
Available from: 2016-12-22 Created: 2016-12-22 Last updated: 2019-10-12Bibliographically approved
Bengtsson, C., Janson, C., Jonsson, L., Holmström, M., Theorell-Haglöw, J. & Lindberg, E. (2017). Chronic rhinosinusitis is an independent risk factor for sleeping problems – a 10-year-follow-up study. Paper presented at The 2017 joint congress of World Association of Sleep Medicine (WASM) and World Sleep Federation (WSF), October 7-11, 2017, Prague, Czech Republic.. Sleep Medicine, 40(Supplement 1), E30-E30
Open this publication in new window or tab >>Chronic rhinosinusitis is an independent risk factor for sleeping problems – a 10-year-follow-up study
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2017 (English)In: Sleep Medicine, ISSN 1389-9457, E-ISSN 1878-5506, Vol. 40, no Supplement 1, p. E30-E30Article in journal, Meeting abstract (Other academic) Published
National Category
Respiratory Medicine and Allergy
Identifiers
urn:nbn:se:uu:diva-369232 (URN)10.1016/j.sleep.2017.11.082 (DOI)000444558902082 ()
Conference
The 2017 joint congress of World Association of Sleep Medicine (WASM) and World Sleep Federation (WSF), October 7-11, 2017, Prague, Czech Republic.
Available from: 2019-01-07 Created: 2019-01-07 Last updated: 2019-01-07Bibliographically approved
Bengtsson, C., Jonsson, L., Holmström, M., Svensson, M., Theorell-Haglöw, J. & Lindberg, E. (2015). Impact of nasal obstruction on sleep quality: a community-based study of women. European Archives of Oto-Rhino-Laryngology, 272(1), 97-103
Open this publication in new window or tab >>Impact of nasal obstruction on sleep quality: a community-based study of women
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2015 (English)In: European Archives of Oto-Rhino-Laryngology, ISSN 0937-4477, E-ISSN 1434-4726, Vol. 272, no 1, p. 97-103Article in journal (Refereed) Published
Abstract [en]

The aim of the study was to analyse the impact of self-reported nasal obstruction on sleep quality in women. A community-based sample of 400 women underwent a full night of polysomnography. Airway diseases, allergies and sleep-related symptoms were assessed by questionnaires. Women with subjective nasal obstruction were subdivided into three groups: persistent nasal obstruction (PNO, n = 46), hay fever (n = 88) and nasal obstruction at night (NON, n = 30). Sleep problems and related daytime symptoms were most prevalent among women with NON. After adjusting for age, BMI, smoking and asthma, NON was an independent predictor of 'Difficulties inducing sleep due to nasal obstruction' [adjusted odds ratio (95 % CI): 89.5 (27.0-296.7)], 'Snoring' [4.2 (1.7-10.2)], 'Sweating at night' [2.6 (1.1-6.1)], 'Difficulties maintaining sleep' [2.7 (1.2-6.2)], and 'Waking up hastily gasping for breath' [32.2 (8.7-119.1)]. 'Dry mouth on awakening' [7.7 (3.2-18.4)], 'Waking up unrefreshed' [2.7 (1.2-6.0)], 'Excessive daytime sleepiness' [2.6 (1.1-6.0)], and 'Daytime nasal obstruction' [12.2 (4.8-31.2)] were also associated with NON. Persistent nasal obstruction and hay fever were both associated with some reported sleep problems due to an overlap with NON. When women with NON were excluded, only 'Daytime nasal obstruction' was still significantly associated with PNO, while hay fever was associated with 'Daytime nasal obstruction' and 'Waking up hastily gasping for breath'. There were no significant differences in objectively measured sleep variables between any of the three subgroups and the study cohort. Self-reported nasal obstruction at night in women has a significant effect on several subjective day- and nighttime symptoms, but it does not appear to affect objectively measured sleep quality.

National Category
Otorhinolaryngology
Identifiers
urn:nbn:se:uu:diva-231393 (URN)10.1007/s00405-014-3067-6 (DOI)000347292000014 ()24792065 (PubMedID)
Available from: 2014-09-08 Created: 2014-09-08 Last updated: 2019-10-12Bibliographically approved
Bengtsson, C., Jonsson, L., Holmstrom, M., Svensson, M., Theorell-Haglöw, J. & Lindberg, E. (2014). Impact of nasal obstruction on sleep quality - a community based study of women. Paper presented at 22nd Congress of the European-Sleep-Research-Society, SEP 16-20, 2014, Tallinn, ESTONIA. Journal of Sleep Research, 23, 149-149
Open this publication in new window or tab >>Impact of nasal obstruction on sleep quality - a community based study of women
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2014 (English)In: Journal of Sleep Research, ISSN 0962-1105, E-ISSN 1365-2869, Vol. 23, p. 149-149Article in journal, Meeting abstract (Other academic) Published
National Category
Neurology
Identifiers
urn:nbn:se:uu:diva-249087 (URN)000349960600390 ()
Conference
22nd Congress of the European-Sleep-Research-Society, SEP 16-20, 2014, Tallinn, ESTONIA
Available from: 2015-04-10 Created: 2015-04-10 Last updated: 2017-12-04Bibliographically approved
Covaciu, L., Weis, J., Bengtsson, C., Allers, M., Lunderquist, A., Ahlström, H. & Rubertsson, S. (2011). Brain temperature in healthy volunteers subjected to intranasal cooling. Intensive Care Medicine, 37(8), 1277-1284
Open this publication in new window or tab >>Brain temperature in healthy volunteers subjected to intranasal cooling
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2011 (English)In: Intensive Care Medicine, ISSN 0342-4642, E-ISSN 1432-1238, Vol. 37, no 8, p. 1277-1284Article in journal (Other academic) Published
Abstract [en]

Purpose:

Intranasal cooling can be used to initiate therapeutic hypothermia. However, direct measurement of brain temperature is difficult and the intra-cerebral distribution of temperature changes with cooling is unknown. The purpose of this study was to measure the brain temperature of human volunteers subjected to intranasal cooling using non-invasive magnetic resonance (MR) methods.

Methods:

Intranasal balloons catheters circulated with saline at 20 °C were applied for 60 min in 10 healthy, unsedated volunteers. Brain temperature changes were measured and mapped using MR spectroscopic imaging (MRSI) and phase-mapping techniques. Heart rate and blood pressure were monitored throughout the experiment. Rectal temperature was measured before and after the cooling. Mini Mental State Examination (MMSE) test and nasal inspection were done before and after the cooling. Questionnaires about the subjects personal experience were filled after the experiment.

Results:

Brain temperature decrease measured by MRSI was -1.7 ± 0.8°C and by phase-mapping -1.8 ± 0.9°C at the end of cooling. Spatial distribution of temperature changes was relatively uniform. Rectal temperature decreased by -0.5 ± 0.3°C. The physiological parameters were stable and no shivering was reported. The volunteers remained alert during cooling and no cognitive dysfunctions were apparent at MMSE test. Postcooling nasal examination detected increased nasal secretion in 9 of the 10 volunteers. Volunteer’s acceptance of the method was good.   

Conclusion:

Both MR techniques revealed brain temperature reductions after 60 min intranasal cooling with balloons circulated with saline at 20 °C in healthy and unsedated volunteers.

Keywords
Therapeutic hypothermia, Brain temperature, Magnetic resonance spectroscopy, selective brain cooling, trigeminal reflex
National Category
Anesthesiology and Intensive Care
Research subject
Anaesthesiology and Intensive Care
Identifiers
urn:nbn:se:uu:diva-134228 (URN)10.1007/s00134-011-2264-7 (DOI)21647717 (PubMedID)
Available from: 2010-11-23 Created: 2010-11-23 Last updated: 2017-12-12Bibliographically approved
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