Browsing by Author "Lai, Wen-Sen"

Now showing 1 - 8 of 8

Bilateral Nasolabial Cysts
(2019-02-01)
Lai, Wen-Sen
;
Lin, Yuan-Yung
;
Chu, Yueng-Hsiang
;
Lee, Jih-Chin
;
生物資訊及系統生物研究所
Clinical application of suction-tube-assisted septal submucosal dissection for endoscopic septoplasty
(2017-03)
Lai, Wen-Sen
;
Lin, Yuan-Yung
;
Shih, Cheng-Ping
;
Chen, Hsin-Chien
;
Yang, Pei-Lin
Endoscopic septoplasty has become the favored approach for the treatment of a deviated septum. Careful septal dissection results in less bleeding, clear endoscopic view, shortened operative time, and fewer postoperative complications. We describe our 5-year experience of using an 8 French Frazier suction tube for submucosal dissection compared with the traditional septoplasty. A total of 434 patients who underwent septoplasty were recruited. The patients in the study were divided into two Groups 1 and 2 based on the employed surgical techniques to treat deviated nasal septum: traditional septoplasty (Group 1: 105 patients) and suction-tube-assisted endoscopic septoplasty (Group 2: 329 patients). All the patients were followed up for a minimum of 6 months. No statistically significant differences could be traced between the groups in any demographic factor, regarding the gender, age, and the intraoperative and postoperative complications. A significantly shorter operative time was found in Group 2 (P < 0.001). The overall incidence of minor complications was 6.6% in Group 1 and 4.6% in Group 2. The suction-tube-assisted dissection technique is found to be a surgical alternative, effective with a significantly shorter operating time, and economical option in septal surgery.
Clinical assessment of diode laser-assisted endoscopic intrasphenoidal vidian neurectomy in the treatment of refractory rhinitis
(2017-12-01)
Lai, Wen-Sen
;
Cheng, Sheng-Yao
;
Lin, Yuan-Yung
;
Yang, Pei-Lin
;
Lin, Hung-Che
For chronic rhinitis that is refractory to medical therapy, surgical intervention such as endoscopic vidian neurectomy (VN) can be used to control the intractable symptoms. Lasers can contribute to minimizing the invasiveness of ENT surgery. The aim of this retrospective study is to compare in patients who underwent diode laser-assisted versus traditional VN in terms of operative time, surgical field, quality of life, and postoperative complications. All patients had refractory rhinitis with a poor treatment response to a 6-month trial of corticosteroid nasal sprays and underwent endoscopic VN between November 2006 and September 2015. They were non-randomly allocated into either a cold instrument group or a diode laser-assisted group. Vidian nerve was excised with a 940-nm continuous wave diode laser through a 600-mu m silica optical fiber, utilizing a contact mode with the power set at 5 W. A visual analog scale (VAS) was used to grade the severity of the rhinitis symptoms for quality of life assessment before the surgery and 6 months after. Of the 118 patients enrolled in the study, 75 patients underwent cold instrument VN and 43 patients underwent diode laser-assisted VN. Patients in the laser-assisted group had a significantly lower surgical field score and a lower postoperative bleeding rate than those in the cold instrument group. Changes in the VAS were significant in preoperative and postoperative nasal symptoms in each group. The application of diode lasers for vidian nerve transection showed a better surgical field and a lower incidence of postoperative hemorrhage. Recent advancements in laser application and endoscopic technique has made VN safer and more effective. We recommend this surgical approach as a reliable and effective treatment for patients with refractory rhinitis.
Diode Laser Assisted Minimal Invasive Sphenoidotomy for Endoscopic Transphenoidal Pituitary Surgery: Our Technique and Results
(2015-03-01)
Lee, Jih-Chin
;
Lai, Wen-Sen
;
Ju, Da-Tong
;
Chu, Yueng-Hsiang
;
Yang, Jinn-Moon
Background and ObjectiveDuring endoscopic sinus surgery (ESS), intra-operative bleeding can significantly compromise visualization of the surgical field. The diode laser that provides good hemostatic and vaporization effects and excellent photocoagulation has been successfully applied in endoscopic surgery with several advantages. The current retrospective study demonstrates the feasibility of diode laser-combined endoscopic sinus surgery on sphenoidotomy. Study Design/Materials and MethodsThe patients who went through endoscopic transphenoidal pituitary surgery were enrolled. During the operation, the quality of the surgical field was assessed and graded by the operating surgeon using the scale proposed by Boezaart. ResultsThe mean operation time was 37.8010.90 minutes. The mean score on the quality of surgical field was 1.95. A positive correlation between the lower surgical field quality score and the shorter surgical time was found with statistical significance (P<0.0001). No infections, hemorrhages, or other complications occurred intra- or post-operatively. ConclusionThe diode laser-assisted sphenoidotomy is a reliable and safe approach of pituitary gland surgery with minimal invasiveness. It is found that application of diode laser significantly improved quality of surgical field and shortened operation time. Lasers Surg. Med. 47:239-242, 2015. (c) 2015 Wiley Periodicals, Inc.
Gender Differences in the Association between Moderate Alcohol Consumption and Hearing Threshold Shifts
(2017-05-19)
Lin, Yuan-Yung
;
Chen, Hsin-Chien
;
Lai, Wen-Sen
;
Wu, Li-Wei
;
Wang, Chih-Hung
Hearing loss is a global public health problem with a high prevalence, significantly impairing communication and leading to a decrease in the quality of life. The association between moderate alcohol consumption (MAC) and hearing impairment has been addressed in several studies with inconsistent results. The intent of our study is to clarify the correlation between MAC and the hearing threshold and further investigate the interplay between MAC and the hearing threshold categorized by gender. The study included 4,075 participants aged 20-69 years from the 1999-2004 data of National Health and Nutrition Examination Survey (NHANES). The associations among MAC, gender differences, and high-frequency and low-frequency hearing thresholds were analyzed. We found that current female drinkers with MAC tended to have lower hearing thresholds. There is a significant protective effect of MAC on hearing threshold shifts in the US adult population, especially in females. Our research was the first study to further indicate that there is a gender difference in the association between MAC and hearing impairment. In accordance with our results, if people drink, they should consume moderate rather than higher amounts, especially in women, which may result in a reduced risk of hearing loss.
Management of different kinds of head and neck defects with the submental flap for reconstruction
(2015-12-01)
Tsai, Wan-Chun
;
Yang, Jinn-Moon
;
Liu, Shao-Cheng
;
Chu, Yueng-Hsiang
;
Lai, Wen-Sen
Head and neck surgeries often accompany with moderate-sized defects that require time-consuming reconstructions by free flaps. The submental flap is a versatile and time-effective option for reconstruction of orofacial defects providing acceptable cosmetic and functional results without requiring microsurgical techniques. A retrospective case series study of patients who underwent reconstruction with the submental flap between 2009 and 2013 was conducted. There were 36 patients (33 men and 3 women), with a mean age of 56.4 years, enrolled in this study. The primary lesion sites included oral cavity (24 patients), pharynx (8 patients), larynx (2 patients), neck (1 patient) as well as maxillary sinus (1 patient). All flaps were harvested as the myocutaneous flaps. All donor sites were closed primarily without the need of additional surgery. No complete loss of the flap was encountered and two cases developed marginal necrosis of the flap. The submental flap had a reliable pedicle and had minimal donor-site morbidity. It is an excellent flap option for patients with small- to medium-sized defects in head and neck region.
Measles: A Missed Cause of Acute Tonsillitis
(2017-10-01)
Lai, Wen-Sen
;
Lin, Yuan-Yung
;
Wang, Chih-Hung
;
Chen, Hsin-Chien
;
生物資訊及系統生物研究所
Vascular anatomy is a determining factor of successful submental flap raising: a retrospective study of 70 clinical cases
(2017-09-19)
Lin, Hung-Che
;
Huan, Yuahn-Sieh
;
Chu, Yueng-Hsiang
;
Liu, Shao-Cheng
;
Shangkuan, Wei-Chuan
The vascular anatomy of submental flaps (SFs) represents a determining factor in successful SF raising. However, little attention has been focused on the venous return of SFs. Thus, the present study aimed to investigate SF venous return. This study enrolled patients who underwent SF reconstructive surgery in a tertiary referral center between November 2009 and October 2016. The drainage pathway of the SF venous return was routinely identified during the course of our operations to prevent damage during head and neck surgery. The venous return data of 70 patients were reviewed. The size of the flaps ranged from 15 to 84 cm(2), and total flap loss was not observed in the case series. All of the submental arteries originated from the facial artery; however, the submental veins of 70 patients returned to either the internal jugular vein (IJV, 72.9%) or the external jugular vein (EJV, 27.1%). Our data suggest that drainage of the submental vein into the EJV, which has been previously overlooked, should receive greater attention during SF surgeries. The results support mandatory preservation of the EJV and IJV and indicate that vascular anatomy is a determining factor for successful SF raising.