Comparison of laser induced effects on hyperplastic inferior nasal turbinates by means of scanning electron microscopy

Abstract

In the course of this study SEM proved to be especially suitable for the examination of tissue changes on the surface of laser treated turbinates (i.g., destruction of respiratory epithelium). According to our results, Argon-ion-, Nd:YAG-, and diode-lasers seem to be useful for an effective and bloodless reduction of hyperplastic turbinates. However, broad coagulation zones may lead to consecutive complications and side effects. Due to its good ablation and superficial coagulation capabilities, Ho:YAG-laser light also seems to be usable for an effective turbinate reduction, but its low thermal effects in the depth of the tissue may lead to bleedings during treatment. Laser light of the CO(2) laser showed the lowest thermal tissue effects of the lasers investigated and therefore holds the risk of bleedings during treatment and the need of more than one therapeutic session to get a sufficient result. This investigation revealed that physicians, who are performing endonasal laser treatment, must be aware of the varying tissue effects of different medical laser systems to get a more aimed effect and to avoid intra- and post-operative complications (e.g., Rhinitis sicca, bone sequestration of the turbinate, bleedings, ...).

Comparative study of management of inferior turbinate hypertrophy using turbinoplasty assisted by microdebrider or 980 nm diode laser

“…23 However, the diode laser's coagulation capabilities are not as great as those of the Nd:YAG laser; therefore, a large but controlled coagulation zone can be created within the venous plexus of the nasal turbinate, with little risk to the turbinate periosteum. 22,24 Moreover, a shorter period of post-operative nasal mucosa swelling (three to four weeks) has been reported. 26,53,58,59 Considering the aforementioned clinical findings, a 980 nm wavelength diode laser was chosen for the current study.…”

“…[46][47][48][49][50] However, carbon dioxide laser has the lowest thermal tissue effect of all the surgical lasers, and therefore has the highest risk of intra-operative bleeding, and the greatest possibility that more than one therapeutic session will be required to obtain an adequate result. 24 Unlike the carbon dioxide laser, the Ho:YAG laser has good coagulation capability and is therefore suitable for inferior turbinate treatment, enabling minimal carbonisation and satisfactory haemostasis. 51,52 However, a study of the long-term efficacy of diode versus Ho:YAG laser found success rates of 74.4 and 67.5 per cent, respectively, after three years' follow up.…”

“…As a result, many different findings, and interpretations thereof, have been reported and summarised in comparative reviews. [22][23][24][25] In the present study, we aimed to compare the clinical efficacy of diode laser (one of the most popular laser types for turbinate ablation) versus endoscopic microdebrider (a convenient and minimally invasive method), for inferior turbinoplasty. 26 To our best knowledge, such a comparison has not previously been conducted.…”

An experimental pathologic study of gingivectomy using dual‐wavelength laser equipment with OPO

“…The Ho:YAG laser [8,9] incises soft tissue much more effectively than the Nd:YAG, but much less effectively than the CO 2 laser or Er:YAG. Soft tissue irradiated by the Ho:YAG laser also exhibits thick coagulation, but not to the extent of tissue irradiated by the Nd:YAG laser [10]. The characteristics of the 1.64 mm wavelength may be intermediate between the wavelengths of the Nd:YAG laser and Ho:YAG laser.…”

Die Laserkonchotomie mit Ho:YAG- und Dioden-Laser zur Behandlung von hyperplastischen Nasenmuscheln

“…Der mukoziliare Funktionstest bewies, dass die Funktion der zilientragenden Zellen nicht beeinflusst wird. Unabhängig von den beschriebenen klinischen Unterschieden zwischen den beiden Lasersystemen wirkt die Dioden-Laserstrahlung durch eine ausgeprägte Tiefenkoagulation, während die Ho:YAG-Laseranwendung eine gute und kontrollierte Ablationswirkung des Gewebes erzielt, die zu einer schnellen postoperativen Verbesserung der Nasenatmung führt [37]. Die Laserkonchotomie ist ambulant durchführbar und zeigte eine hohe Patientenakzeptanz (keine Nasentamponade, keine Hospitalisierung).…”