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A Mandibular Advancement Device Reduces Sleep Disordered Breathing in Patients with Congestive Heart Failure
Malmö högskola, Odontologiska fakulteten (OD).
Department of Cardiology, University Hospital, Malmö, Sweden.
Department of Cardiology, University Hospital, Malmö, Sweden.
Malmö högskola, Odontologiska fakulteten (OD).
2004 (Engelska)Ingår i: Swedish Dental Journal, ISSN 0347-9994, Vol. 28, nr 4, s. 155-163Artikel i tidskrift (Övrigt vetenskapligt) Published
Abstract [en]

Sleep disordered breathing (SDB) including obstructive and central sleep apnoea/hypopnoea as well as periodic breathing (PB) is common and is believed to increase risk for mortality in patients with congestive heart failure (CHF). Mandibular advancement device (MAD) has widely been recommended for treatment of obstructive sleep apnoea but the method has never been investigated for treatment of SDB in the patients with CHF. The aim with the present study was to examine the effect of MAD intervention on SDB in patients with CHF. The study included 17 male patients, aged 68.4+/-5.7 (mean+/-SD) with stable, mild to moderate CHF due to left ventricular systolic dysfunc-tion and with SDB, expressed as apnoea/hypopnoea index (AHI) > or = 10. The SDB was examined during a single night using an unattended, portable polysomnographic device in the patients home, prior to and following intervention with a individually adjusted MAD. The SDB was evaluated by calculating AHI, PB expressed as the percentage of the total registration time, oxygen desaturation index (ODI) and snoring time. The AHI was reduced by MAD intervention from 25.1+/-9.4 to 14.7+/-9.7 (p=0.003). ODI reduced from 21.1+/-9.0 to 10.5+/-7.8 (p=0.007) and snoring time decreased from 53+/-111 to 18+/-47 seconds (p=0.02). PB was reduced from 55.7+/-25.6 to 40.4+/-26.4 per cent without statistical significance. In conclusion, the MAD intervention may be a feasible method for reducing SDB in patients with stable, mild to moderate CHF and left ventricular systolic dysfunction.

Ort, förlag, år, upplaga, sidor
Swedish Dental Association , 2004. Vol. 28, nr 4, s. 155-163
Nationell ämneskategori
Odontologi
Identifikatorer
URN: urn:nbn:se:mau:diva-7032ISI: 000229423700001PubMedID: 15779492Scopus ID: 2-s2.0-15044352364Lokalt ID: 3001OAI: oai:DiVA.org:mau-7032DiVA, id: diva2:1403986
Tillgänglig från: 2020-02-28 Skapad: 2020-02-28 Senast uppdaterad: 2024-06-19Bibliografiskt granskad
Ingår i avhandling
1. Sleep Apnoea in Patients with Stable Congestive Heart Failure - An Intervention Study with a Mandibular Advancement Device
Öppna denna publikation i ny flik eller fönster >>Sleep Apnoea in Patients with Stable Congestive Heart Failure - An Intervention Study with a Mandibular Advancement Device
2004 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

In patients with congestive heart failure (CHF), sleep disordered breathing (SDB)--including obstructive and central sleep apnoea as well as periodic breathing--is a common condition and is believed to increase the risk of mortality. Treatment of SDB is considered important in the management of CHF. Improvements in SDB have a positive effect on cardiac output, measured with left ventricular ejection fraction (LVEF); on neurohormonal activity, measured as brain natriuretic peptide (BNP); and on the quality of life. Continuous positive airway pressure has been the traditional method used to treat SDB in patients with CHF, but compliance and tolerability are poor. A mandibular advancement device (MAD) is a dental device recommended for the treatment of sleep apnoea, but the method has never been evaluated in patients with CHF. The aims of the present studies were to evaluate the practical use of the MAD for the treatment of SDB in patients with CHF and to test the hypothesis that this intervention increases the dimensions of the pharyngeal airway (PAW), reduces SDB and BNP, and improves LVEF and the quality of life. Patients with mild to moderate CHF and SDB were evaluated using a portable polysomnographic device, lateral radiographs, cardiological and odontological examinations, and quality of life measures prior to and following intervention with an custom-made MAD. At the short-term follow-up 4-6 weeks after habituation with the MAD, the severity of SDB according to the apnoea-hypopnoea index had decreased from 25.1 +/- 9.4 (mean +/- SD) to 14.7 +/- 9.7 (p = 0.003). An increase in the inferior region of the PAW (7 +/- 5 mm) was observed on radiographs (p = 0.0001). However, no correlation between the effect of the MAD on the dimensions of the PAW and its effect on SDB was found. At the 6-month follow-up, the sleep apnoea-related symptoms had decreased by 31% (p = 0.003). Quality of life remained stable. BNP were reduced from 195.8 +/- 180.5 pg/ml to 148.1 +/- 139.9 pg/ml (p = 0.035). LVEF, however, remained unchanged. At the 12-month follow-up, 64 % of the patients were still using the MAD. Three patients withdrew from the study because of discomfort with the MAD. In most patients, MAD treatment had no severe side effect on the signs or symptoms of temporomandibular disorders. However, dental complications were observed. In conclusion, in patients with stable CHF who are experiencing problems with SDB, MAD intervention appears to reduce the severity of SDB, sleep apnoea-related symptoms, and neurohormonal activity. A lower tendency for PAW collapse may explain the effect observed on SDB. The reduction in plasma BNP may indicate decreased cardiac strain as a result of treatment of SDB. The 5-year survival rate, measured from the start of MAD intervention, was higher in the group that used a MAD than in the group that did not use a MAD (p = 0.036). No severe side effects on the stomatognathic system were observed during the intervention, and most patients--edentulous included--tolerated the treatment well. Impaired oral health, including reduced dentition and edentulousness, seemed to limit the use of the MAD in this group of elderly patients, both because of technical difficulties and because of the increased risk of dental complications. However, because the treatment of SDB is important in the management of CHF, the MAD intervention seems to be a valuable method in the treatment arsenal of SDB.

Ort, förlag, år, upplaga, sidor
Malmö University, 2004. s. 56
Serie
Swedish dental journal. Supplement, ISSN 0348-6672 ; 168
Nyckelord
Sömnapné, Bettfysiologi, Hjärtsvikt
Nationell ämneskategori
Odontologi
Identifikatorer
urn:nbn:se:mau:diva-7695 (URN)7927 (Lokalt ID)91-628-6230-8 (ISBN)7927 (Arkivnummer)7927 (OAI)
Tillgänglig från: 2020-02-28 Skapad: 2020-02-28 Senast uppdaterad: 2022-06-27Bibliografiskt granskad

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