Hyuck Soon Chang

Comparison of Conventional Excision via a Sublabial Approach and Transnasal Marsupialization for the Treatment of Nasolabial Cysts: A Prospective Randomized Study

Objectives Surgical excision via a sublabial approach is considered the standard treatment for nasolabial cysts. Although transnasal marsupialization has been proposed as an alternative method, no prospective study has compared the effectiveness of these techniques. We thus compared the surgical procedure, operating time, postoperative pain, complications, and recurrence rate between the two surgical methods. Methods Twenty patients diagnosed with nasolabial cysts were allocated randomly into two groups according to the surgical technique. In the sublabial approach group, the cysts were excised completely using a sublabial approach, while in the transnasal marsupialization group, the cysts were marsupialized transnasally under the guidance of nasal endoscopes. The pure operating time was measured and postoperative pain was evaluated using a visual analog scale. Complications after the procedure were assessed and recurrence was determined according to the clinical symptoms and postoperative radiologic findings. Results The transnasal marsupialization group had significantly shorter operating times, less postoperative pain, lower complication rates, and shorter duration of side effects than the sublabial approach group. No recurrence occurred in either group after a 1-yr follow-up period. Conclusion Although both methods are effective for treating nasolabial cysts, the transnasal marsupialization of nasolabial cysts has many benefits over the conventional sublabial approach. Therefore, we propose that transnasal marsupialization be the treatment of choice for nasolabial cysts.

Long-term Study of Sialodochoplasty for Preventing Submandibular Sialolithiasis Recurrence

Objectives The transoral removal of stones by sialodochoplasty has been popularized in the treatment of submandibular sialolithiasis. However, the effectiveness of sialodochoplasty is controversial, and there are no reports on the long-term outcomes of this procedure. The purpose of this study was to assess the effectiveness and long-term outcomes of sialodochoplasty in patients with submandibular sialolithiasis. Methods We conducted a cross-sectional study that included retrospective chart reviews and prospective telephone or interview surveys of 150 patients treated for submandibular sialolithiasis from March 2001 to January 2008. The patients were treated with two different procedures by two different surgeons. One surgeon performed a transoral sialolithectomy without sialodochoplasty in 107 patients (SS group), and the other surgeon performed a transoral sialolithectomy with sialodochoplasty in 43 patients (SP group). Results The success rate of transoral sialolithectomy was 98.1% in the SS group and 93% in the SP group. The recurrence rates of symptoms or stones were 1.9% and 4.7% in the SS and SP groups, respectively. The incidence of postoperative transient hypoesthesia was 13.1% in the SS group and 34.9% in the SP group. The mean operating times were 29.79 and 47.44 minutes in the SS and SP groups, respectively. The mean percentage of general anesthesia was 42.1% in the SS group and 83.7% in the SP group. Conclusion Sialodochoplasty in addition to transoral sialolithectomy for submandibular sialolithiasis did not affect the rate of symptom or stone recurrence, but did increase the postoperative hypoesthesia incidence and general anesthesia percentage.

Augmentation of vocal fold using a fat block implant following cordotomy through a minithyrotomy approach in a rabbit model.

OBJECTIVES Minithyrotomy is a novel approach that provides direct access to the lamina propria and vocalis muscle without requiring incision of the vocal fold mucosa. The aim of this study was to demonstrate the efficacy of minithyrotomy vocal fold augmentation in a rabbit model by comparing the vocal fold total square amount and the density of scars between the cordotomy with minithyrotomy group and a cordotomy without minithyrotomy group. STUDY DESIGN Animal study. METHODS Twenty adult laboratory-conditioned female rabbits were used for this study. Minithyrotomy vocal fold augmentation was performed using a single fat block implant 3 months after cordotomy. To compare total square amount and density of vocal folds between the minithyrotomy and cordotomy group, hematoxylin and eosin, Massons trichrome, and alcian blue staining was used. RESULTS Histological examinations showed that minithyrotomy vocal fold augmentation postoperatively restored vocal fold bulkiness and maintained volume for up to 6 months, compared with the cordotomy group (P<0.05). In light of the surgical manipulation, the procedure also did not aggravate scarring of the cordectomized vocal fold. CONCLUSIONS Minithyrotomy vocal fold augmentation using an autologous fat block may soon be feasible in humans undergoing rehabilitation for postcordotomy dysphonia without causing additional damage to the vocal folds.