Continuous pressure measurements in the evaluation of patients for laser assisted uvulopalatoplasty

Skatvedt, Olav; Akre, Harriet; Godtlibsen, O. B.

doi:10.1007/bf00168489

Cited by 19 publications

(8 citation statements)

References 15 publications

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“…The pressure sensors in the pharynx and esophagus were used in our standard set-up for nocturnal polysomnography (PSG), as previously described by us [10] and others [4,13]. In the present study the combined pressure and internal thermistors were used together with the external thermistor located at the patient's upper lip and pulse oximetry for monitoring oxygen saturation.…”

Section: Methodsmentioning

confidence: 99%

Advantages of measuring air flow in the pharynx with internal thermistors

Akre

Skatvedt²

2000

European Archives of Oto-Rhino-Laryngology

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The measurement of air flow in patients suffering from breathing disturbances during sleep is usually accomplished by an oro-nasal thermistor located at the upper lip. The detection of hypopneas using this system may be difficult because the external thermistor may be unable to differentiate between high and low air flow rates. To improve the diagnosis of hypopneas we introduced a new method using internal thermistors contained in the same tube and using the same sensors as when recording pressures in the upper airways for localization of obstructions and measuring the respiratory work. The internal thermistors/pressure transducers (Camtip) were contained in a silicone tube that had a 1.9-mm external diameter. Standard polysomnography was performed, and internal flow and estimated volume were included in the polysomnographic setup. Ten consecutive hypopneas were studied in six patients having sleep-related breathing disorders. Preliminary results indicate that this method of monitoring air flow is more sensitive to minor changes in air flow than the external thermistor. It also simplifies the detection of hypopneas. Our findings shows that measuring air flow by internal thermistors is better than that of external devices to monitor tidal air flow. The internal sensors also facilitate the diagnosis of hypopneas in patients with sleep-related breathing disorders. Determinations of temperature changes and airway pressure in the pharynx can also be performed by the same sensors. Hence, no additional equipment is necessary for flow tracings when pressure recordings are used in the PSG setup.

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Section: Methodsmentioning

confidence: 99%

Advantages of measuring air flow in the pharynx with internal thermistors

Akre

Skatvedt²

2000

European Archives of Oto-Rhino-Laryngology

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“…Objective results from LUPP in 16 patients have indi cated that obstructions across the soft palate were treated effectively in all obstructive apnoeas and in the majority of obstructive hypopnoeas [18], Apnoea-hypopnoca indices are not available for the patients since only a minority had polysomnography per formed pre-and postoperatively due to the lack of rele vant equipment for sleep studies. Since polysomnography was not performed routinely, we do not have objective data on the severity of snoring and OSAS.…”

Section: Discussionmentioning

confidence: 99%

“…An objective assessment by polysomnography and pres sure measurements has also been made [18], but a de tailed description of the technique has not previously been published.…”

Section: Introductionmentioning

confidence: 99%

Laser-Assisted Uvulopalatoplasty: Description of the Technique and Pre- and Postoperative Evaluation of Subjective Symptoms

Skatvedt

1996

ORL

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A new surgical approach for treating patients suffering from heavy snoring or obstructive sleep apnoea is introduced. This procedure includes the use of a laser and is called laser-assisted uvulopalatoplasty (LUPP). However, the technique described here is unlike the laser-assisted uvulopalatoplasty (LAUP) as described by Kamami in 1990. LUPP is performed under local anaesthesia and in an out-patient setting. Muscle resection is minimal and includes only the distal part of the uvula muscle and some fibres of the palatopharyngeal muscles. The LUPP procedure and the subjective results in 100 patients who have had LUPP performed are presented.

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“…Using continuous pressure measurement in 16 patients with obstruction located to the soft palate, Skatvedt et al [54] reported improvement in the duration of respiratory events, AHI and microarousal index after LAUP. However, these data should be confirmed.…”

Section: Treatment Of Uarsmentioning

confidence: 99%

Obstructive Sleep Apnea Syndrome and Snoring: What Is the Role of Surgery?

Pelletier¹,

Pellanda²,

Jaques³

2000

Otorhinolaryngol Nova

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This paper evaluates the different surgical treatments used in obstructive sleep apnea syndrome and snoring. This critical analysis is based on an extensive review of the literature and the authors’ experience. In snoring patients, the success rate of surgery focusing on the soft palate does not exceed 50–60%, and the risk of pharyngeal narrowing is high. Therefore, this treatment should be selectively performed. More conservative approaches are now under development. The surgical treatment of the obstructive sleep apnea syndrome is controversial. Surgery of the soft palate is associated with a high rate of complications and, therefore, is restricted to a limited number of cases. The compliance with continuous positive airway pressure is low, especially among young patients. Therefore, maxillofacial surgery has regained interest with two opposite concepts. Some authors favor a step-by-step approach, while others proceed in a one-stage surgery. The latter is more aggressive, but its success rate is superior (90%). Results and indications of hyoid myotomy and suspension associated with genioplasty (phase 1) and maxillomandibular osteotomy and advancement (phase 2) are reviewed in detail.

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Continuous pressure measurements in the evaluation of patients for laser assisted uvulopalatoplasty

Cited by 19 publications

References 15 publications

Advantages of measuring air flow in the pharynx with internal thermistors

Advantages of measuring air flow in the pharynx with internal thermistors

Laser-Assisted Uvulopalatoplasty: Description of the Technique and Pre- and Postoperative Evaluation of Subjective Symptoms

Obstructive Sleep Apnea Syndrome and Snoring: What Is the Role of Surgery?

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