Vocal Tradeoffs in Anterior Glottoplasty for Voice Feminization

Impact of Wendler glottoplasty on acoustic measures and quality of voice in transgender women: a systematic review and meta-analysis

PURPOSE

Since new evidence regarding the impact of Wendler glottoplasty (WG) on the voice in transgender women became available in the literature in recent years, we aimed to perform an updated systematic review and meta-analysis to determine the actual safety and efficacy of WG in the process of vocal feminization.

METHODS

PubMed, Embase, and Cochrane were searched for English-language articles published until July 4, 2023. Studies were found eligible if they evaluated the impact of WG on the acoustic-aerodynamic measures and quality of voice in transgender women.

RESULTS

Twenty-three studies were identified. After exclusion of three studies due to incomplete data, 20 studies including 656 patients were included in the meta-analysis. After WG, there was a significant increase of fundamental frequency, speaking fundamental frequency, and lower limit of the frequency range (p < 0.001). Concurrently, a significant reduction of frequency range and maximum phonation time was observed (p < 0.001). No significant differences were found between the pre- and postoperative values regarding the Grade, Roughness, Breathiness, Asthenia, and Strain scale score (p = 0.339). The overall score in the Trans Woman Voice Questionnaire (TWVQ) significantly improved after WG (p < 0.001).

CONCLUSIONS

WG is an effective voice feminization method in transgender women, associated with a high procedural success and low risk of postoperative complications. Significantly improved TWVQ score after surgery suggests its positive impact on the voice-related quality of life. Postoperative decrease of maximum phonation time and frequency range does not seem to significantly impact the effectiveness of voice production.

Current approaches to gender-affirming vocal care

PURPOSE OF REVIEW

This review addresses the challenges faced by transgender women in achieving congruence between gender identity and voice characteristics and emphasizes the importance of a multidisciplinary approach involving therapeutic and surgical interventions.

RECENT FINDINGS

Recent literature on gender-affirming vocal care emphasizes key themes such as assessment, voice feminization therapy, and various surgical techniques, including glottoplasty and its modifications. Recent publications focused on outcomes, duration, and impact on vocal quality and scrutinized complications associated with surgical interventions.

SUMMARY

Most publications in the last 18 months advocate for the integration of voice therapy and surgery for optimal outcomes. Utilising a combined approach is significantly more effective in terms of fundamental frequency gain compared to therapy alone. Modified Wendler's glottoplasty remains the preferred and most reliable surgical intervention. However, surgery is not without its complications and vocal trade-offs, in particular, its impact on vocal projection and the risk of long-term dysphonia. Postsurgery rehabilitation improves long-term outcomes. Recent publications on alternative surgical approaches, namely laser reduction glottoplasty and feminization laryngoplasty, show promise but the results are more difficult to generalise.

FUTURE DIRECTION

Prospective multicentre studies with standardized protocols are needed to establish best evidence-based practices.

Voice Pitch Shaping and Genderization: New Needs of Cosmetic Phonoplastic Surgery

Voices can convey content, emotion, and essential information about an individual's gender and social information. Closely related to gender identification and sexual attraction, voices also positively affect many psychological factors of individuals. Surgeries have evolved from treating congenital diseases to fulfilling an individual's aesthetic needs for voice. Voice shaping is emerging as the next cosmetic surgery hotspot after skincare and appearance and body shaping. This paper summarizes the development of voice pitch shaping and genderization procedures out of the cosmetic need. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these evidence-based medicine ratings, please refer to the Table of Contents or the online Instructions to Authors https://www.springer.com/00266 .

Complications and Functional Voice Limitations Following Gender-Affirming Laryngeal Surgery (GALS)

OBJECTIVE

Gender-affirming laryngeal surgery (GALS) procedures are effective, with high rates of patient satisfaction following endoscopic vocal fold shortening (glottoplasty) or chondrolaryngoplasty. Despite this, complications and functional limitations in voice use following GALS are not well described. The current study aims to visually characterize the clinical and laryngoscopic features of complications following GALS.

METHODS

Patients who presented with complications or subjective dysphonia following glottoplasty or chondrolaryngoplasty across three tertiary care centers were included. Medical charts were reviewed for demographics, surgical history, the primary outcomes of short- and long-term surgical complications, and the secondary outcome of subjective difficulty in daily voice use unrelated to pitch or gender congruence. Postoperative videostroboscopy exams were reviewed for correlating features.

RESULTS

Eighteen patients with complications after glottoplasty, chondrolaryngoplasty, or both were identified. Complications after chondrolaryngoplasty occurred in three patients and included skin tethering, late-stage infection with fistula, and voice change. Short-term complications following glottoplasty occurred in four patients and included persistent granulation at the neocommissure (n = 3) and suture dehiscence (n = 1). Persistent dysphonia or voice limitations greater than 6 months following glottoplasty were described by eight patients; associated stroboscopy findings included excessive web formation of greater than 50% (n = 4), incomplete web formation with opening anterior to the neocommissure (n = 2), and scarring of the remaining membranous vocal fold (n = 5). Dysphonia complaints were consistent with observed glottic insufficiency in seven of eight of these patients, with incomplete membranous vocal fold closure posterior to the neocommissure or anterior air escape.

CONCLUSION

While chondrolaryngoplasty and glottoplasty have high success rates, complications related to healing, granulation, and web length are not uncommon. Long-term dysphonia appears to be related to postprocedural glottic insufficiency. These data should be used to counsel patients preoperatively about the risks and benefits of GALS.

Gender-Affirming Voice Surgery: Considerations for Surgical Intervention

The purpose of this article is to provide an overview of the current state and available evidence surrounding surgical voice care for the transgender and/or gender expansive population. The term "gender expansive" has been proposed as an inclusive term to classify those who do not identify with traditional gender roles but are otherwise not confined to one gender narrative or experience. We aim to review indications and candidacy for surgery, surgical procedure options for altering vocal pitch, and typical postoperative expectations. The role of voice therapy and considerations for perioperative care will also be discussed.

Voice Outcome of Glottoplasty in Trans Women

PURPOSE

This study investigates the short- and longer-term effects of glottoplasty up to six months after surgery on acoustic voice parameters, listener perceptions, and client's satisfaction in trans women. Secondly, the impact of chondrolaryngoplasty and voice therapy on the glottopasty outcomes was investigated.

METHOD

A prospective longitudinal non-controlled trial was used. Thirty-five trans women undergoing glottoplasty or a combination of glottopasty and chondrolaryngoplasty were included in this study. A voice assessment was conducted before surgery and 1 week, 1 month and 6 months after surgery. The following outcome parameters were measured: fundamental frequency (fo), intensity, frequency and intensity range, Dysphonia Severity Index (DSI), Acoustic Voice Quality Index (AVQI), Voice Handicap Index (VHI), Trans Woman Voice Questionnaire (TWVQ), and visual analogue scales (VAS) measuring client's satisfaction. Listener perceptions of masculinity-femininity were collected using a listening experiment.

RESULTS

Significant differences over time were found for all fo and intensity parameters, DSI, AVQI, VHI and TWVQ scores. Listener perception and self-perception of femininity was higher after surgery. Significant differences in evolution of listener perceptions were found between the groups with and without voice therapy.

CONCLUSION

Glottoplasty improves voice related quality of life and is an effective method to increase the fo and associated perceptual femininity. After glottoplasty an immediate and short-term decrease in voice quality, vocal capacity and frequency range was measured with a progressive recovery on the longer term. Long term side effects of glottoplasty are a reduction in speaking intensity and intensity range. Voice therapy seems to improve the outcomes of glottoplasty, but should be further investigated in future studies.

Comparison Between two Surgical Techniques for Increasing Vocal Pitch by Endoscopic Shortening of the Vocal Folds

OBJECTIVE

To compare two surgical techniques, the Wendler glottoplasty (GP) and its modification, the vocal fold shortening, and retrodisplacement of the anterior commissure (VFSRAC) associated with laser assisted voice adjustment (LAVA) cordotomy, used to feminize the voice of transgender women by increasing the fundamental frequency (F0).

METHODS

A retrospective study of 22 trans-women (20-62 years-old) was carried out. 12 of them were treated with GP and 10 with the VFSRAC+LAVA technique. They were evaluated before surgery and 6 months after surgery and the postoperative speech therapy. Laryngostroboscopy examination, F0 measurements, Transgender Woman Voice Questionnaire (TWVQ) assessment and the perceptual assessment using a visual analog scale (PA-VAS) were obtained from all patients.

RESULTS

Laryngostroboscopic findings showed normal vocal folds before surgery and a shortening of the vocal folds, due to the anterior glottic synechia, after surgery. Significant increases of F0 were found in both groups but they were higher in the VFSRAC+LAVA group (47.75Hz in GP group vs 69.70Hz in VFSRAC+LAVA group). TWVQ scores showed a significant decrease in both groups although the difference was greater in the VFSRAC+LAVA group. Similarly, PA-VAS scores lowered significantly in both groups but VFSRAC+LAVA group presented the biggest decreases.

CONCLUSION

Both surgical techniques produce the shortening of the vocal folds through an endoscopic approach and result in voices with higher vocal pitch. Of the two techniques presented, the VFSRAC+LAVA produces better results although when compared with previous studies it seems that the LAVA technique may not significantly contribute to the postoperative results. So, the VFSRAC technique followed by postoperative speech therapy could be recommended for trans-women who wish to feminize their voice.

Anterior glottoplasty: the effect of inclusion of the vocal fold lamina propria to frequency elevation

BACKGROUND

Anterior glottoplasty is a commonly used treatment for voice feminization. But it remains in dispute over whether to suture of the ligament as part of the procedure.

OBJECTIVES

This study aimed to explore the effect of inclusion of the vocal lamina propia.

MATERIAL AND METHODS

Anterior webs were created in 8 excised canine larynges by sutures placed at 10%, 20%, and 30% of the vocal fold length, respectively. The suture depth was divided into two groups: epithelium layer (Shallow Suture, SS group) and deep layers of vocal fold lamina propia (Deep Suture, DS group).

RESULTS

For anterior webs between 0% and 30%, the frequency elevation ranged from 3% to 151% of the pre-web fundamental frequency (fo) in SS group and from 13% to 222% in DS group. No significance was found between two groups at three different sutures (p = .486 for suture at 10% of vocal fold length, 0.686 for 20%, 0.886 for 30%, respectively).

CONCLUSIONS AND SIGNIFICANCE

The frequency in excised canine larynx increased continuously as the anterior glottic webs ranged from 0% to 30%. The inclusion of the vocal fold lamina propia does not affect the frequency elevation.