Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery · 2017
A comparison of two endoscopic posterior cordotomy techniques: Laser cordotomy vs diathermy-assisted cordotomy.
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Ozturk K, Turhal G, Kaya I, Aysel A, Benzer M, Korkmaz Ekren P, Akyildiz S
Аннотация
OBJECTIVES: To compare respiratory function, swallowing and voice quality of bilateral abductor vocal fold paralysis (BAVFP) patients undergoing laser and diathermy-assisted posterior cordotomy.
DESIGN: Prospective study.
SETTING: Tertiary academic hospital.
PARTICIPANTS: Thirty patients were included in the study (groups 1 and 2, 15 patients each). Mean age was 53 ± 14.27 years with a range of 31-78 years (12 [40%] males, 18 [60%] females).
MAIN OUTCOME MEASURES: Sufficient airway, complications, FEV1, FEV1/FVC, peak expiratory flow rate (PEF), voice quality VAS, fundamental frequency, jitter, shimmer, NHR, amplitude perturbation quotient (APQ) and pitch perturbation quotient (PPQ) scores.
RESULTS: A sufficient laryngeal airway was achieved in all patients. Six patients (20%) developed postoperative granulation tissue (2 in group 1 and 4 in group 2). There was a statistically significant improvement in FEV1, FEV1/FVC and PEF measurements at the postoperative sixth month compared to preoperative measurements in both of the groups (P < .05). Preoperative median voice quality VAS scores in groups 1 and 2 were 8 (IQR = 1) and 8 (IQR = 3), respectively. Postoperative sixth-month voice quality VAS scores in groups 1 and 2 were 6 (IQR = 1) and 6 (IQR = 0), respectively. Postoperative VAS scores were significantly lower in both groups (P < .05). The postoperative changes in fundamental frequency, NHR, jitter, shimmer, APQ and PPQ were not statistically significant in both of the groups (P > .05).
CONCLUSIONS: Laser and diathermy-assisted posterior cordotomy are both minimally invasive, effective techniques with a long-term sufficient laryngeal airway. Despite lower quality of voice VAS scores, objective acoustic outcomes were not significantly lower in both of the groups.
DESIGN: Prospective study.
SETTING: Tertiary academic hospital.
PARTICIPANTS: Thirty patients were included in the study (groups 1 and 2, 15 patients each). Mean age was 53 ± 14.27 years with a range of 31-78 years (12 [40%] males, 18 [60%] females).
MAIN OUTCOME MEASURES: Sufficient airway, complications, FEV1, FEV1/FVC, peak expiratory flow rate (PEF), voice quality VAS, fundamental frequency, jitter, shimmer, NHR, amplitude perturbation quotient (APQ) and pitch perturbation quotient (PPQ) scores.
RESULTS: A sufficient laryngeal airway was achieved in all patients. Six patients (20%) developed postoperative granulation tissue (2 in group 1 and 4 in group 2). There was a statistically significant improvement in FEV1, FEV1/FVC and PEF measurements at the postoperative sixth month compared to preoperative measurements in both of the groups (P < .05). Preoperative median voice quality VAS scores in groups 1 and 2 were 8 (IQR = 1) and 8 (IQR = 3), respectively. Postoperative sixth-month voice quality VAS scores in groups 1 and 2 were 6 (IQR = 1) and 6 (IQR = 0), respectively. Postoperative VAS scores were significantly lower in both groups (P < .05). The postoperative changes in fundamental frequency, NHR, jitter, shimmer, APQ and PPQ were not statistically significant in both of the groups (P > .05).
CONCLUSIONS: Laser and diathermy-assisted posterior cordotomy are both minimally invasive, effective techniques with a long-term sufficient laryngeal airway. Despite lower quality of voice VAS scores, objective acoustic outcomes were not significantly lower in both of the groups.