Italian experience of voice restoration after laryngectomy with tracheoesophageal puncture

The development and treatment of periprosthetic leakage after prosthetic voice restoration. A literature review and personal experience part I: the development of periprosthetic leakage

In the past 30 years, the use of a voice prosthesis has become the treatment of choice for the restoration of speech following laryngectomy. Not only is the placement of a voice prosthesis a simple surgical procedure, but it is also associated with a low rate of complications and an excellent success rate. Approximately, 20-30 % of all patients with voice prostheses, however, develop periprosthetic leakage with aspiration over time. Periprosthetic leakage is usually caused by an enlargement of the tracheo-oesophageal fistula and substantially affects the quality of life of the patients concerned. In a retrospective analysis of our patients, the incidence of periprosthetic leakage was 35.7 % in a total of 232 patients who underwent laryngectomy during a period of 20 years. Substantial enlargement of the tracheo-oesophageal fistula which required multiple treatments occurred in 12.5 % of the patients. In this review, the various causes of fistula enlargement are discussed on the basis of the literature and the experience that we have accumulated during the past 20 years in the management of patients with voice prostheses.

Outcomes and adverse events of enlarged tracheoesophageal puncture after total laryngectomy

OBJECTIVES/HYPOTHESIS

Enlargement of the tracheoesophageal puncture (TEP) results in aspiration around the voice prosthesis (VP) and may lead to pneumonia. The primary objective was to summarize control of leakage around the VP after conservative management of enlarged TEP.

STUDY DESIGN

Retrospective cohort study.

METHODS

This 5-year cohort included 194 patients who underwent total laryngectomy (with or without pharyngectomy) and TEP at the University of Texas MD Anderson Cancer Center. Control of leakage around the VP was analyzed at last follow-up after enlarged TEP. Adverse events were compared in patients with and without enlarged TEP.

RESULTS

The incidence of enlarged TEP was 18.6% (36 of 194, 95% confidence interval [CI]: 13.0%-24.1%). Conservative methods commonly attempted in lieu of complete TEP closure included placement of an enlarged-flange VP (34 of 36, 94%), temporary VP removal (14 of 36, 39%), and TEP-site injection (8 of 36, 22%). At last follow-up, conservative methods controlled leakage around the VP in 81% (29 of 36) of patients. Only two patients required complete TEP closure due to persistent leakage after enlarged TEP. Unresolved leakage was more common in patients with recurrent cancer after laryngectomy (P = .081) and irregular TEP contour (P = .003). Relative to controls without TEP enlargement, patients with enlarged TEP had a three-fold higher risk of pneumonia (relative risk: 3.4, 95% CI: 1.9-6.2) and aspiration of the prosthesis (relative risk: 3.3, 95% CI: 0.8-14.1).

CONCLUSIONS

Although the rate of enlarged TEP is relatively low, the complication significantly elevates risk of pneumonia. Prosthetic leakage related to TEP enlargement can often be managed conservatively to avoid complete closure of the TEP.

Enlarged tracheoesophageal puncture after total laryngectomy: a systematic review and meta-analysis

BACKGROUND

Enlargement of the tracheoesophageal puncture (TEP) is a challenging complication after laryngectomy with TEP. We sought to estimate the rate of enlarged puncture, associated pneumonia rates, potential risk factors, and conservative treatments excluding complete surgical TEP closure.

METHODS

A systematic review was conducted (1978-2008). A summary risk estimate was calculated using a random-effects meta-analysis model.

RESULTS

Twenty-seven peer-reviewed manuscripts were included. The rate of enlarged puncture and/or leakage around the prosthesis was reported in 23 articles (range, 1% to 29%; summary risk estimate, 7.2%; 95% confidence interval [CI], 4.8% to 9.6%). Temporary removal of the prosthesis and TEP-site injections were the most commonly reported conservative treatments. Prosthetic diameter (p = .076) and timing of TEP (p = .297) were analyzed as risk factors; however, radiotherapy variables were inconsistently reported.

CONCLUSION

The overall risk of enlarged puncture seems relatively low, but it remains a rehabilitative challenge. Future research should clearly establish risk factors for enlarged puncture and optimal conservative management.

An approach to complex tracheostomal complications

Fistula formation following laryngectomy, most commonly pharyngocutaneous, is the most feared non-fatal complication with an incidence range from 5 to 30%. Tracheoesophageal fistulae are rare and are, most often, associated with the creation of a surgical speech fistula or the stomal recurrence of a malignant tumour. We present five cases of complex post-laryngectomy fistulae and a new approach to management. We advocate debridement of infected or necrotic tissue, primary suture of the oesophageal and tracheal defects with interposition of healthy viable tissue as a free transfer. If necessary, the trachea can be mobilised and the tracheostome is lowered to healthy tissue outside the radiotherapy field, with excision of the manubrium and hemi-clavicles. This technique allows reconstruction as a single stage procedure and does not preclude the future creation of a further tracheoesophageal fistula for voice rehabilitation.

Surgical complications of tracheo-oesophageal puncture and speech valves

PURPOSE OF REVIEW

Speech rehabilitation following total laryngectomy is central to future quality of life. Although other options exist, surgical voice restoration has emerged as the 'gold standard' management strategy in the majority of laryngectomees. Taking this into account, what are the complications of this technique and how should they be successfully managed? The purpose of this review is to provide a comprehensive review of the subject, with particular reference to technique, complications and outcome.

RECENT FINDINGS

As with any surgical intervention, complications may occur in the early postoperative period or later. The article provides a detailed explanation of the varying problems detailed in individual reports, and in case series. Primary or secondary tracheo-oesophageal puncture is also discussed, along with complications resulting from the speech valve itself.

SUMMARY

The positive impact of surgical voice restoration on quality of life in the alaryngeal patient considerably outweighs the complications commonly associated with the procedure. Greater knowledge of the potential problems should continue to reduce the complication rate. Primary puncture, in a patient selected and subsequently managed in a multidisciplinary environment, would appear to provide the best outcome for the patient.

Outcomes of Primary and Secondary Tracheoesophageal Puncture: A 16-year Retrospective Analysis

The current study retrospectively reviewed the cases of 68 patients who had undergone total laryngectomy and tracheoesophageal puncture (TEP) over a 16-year period. Fifty-one patients underwent primary TEP and 17 underwent secondary TEP. Nearly 80% of patients who received TEP at the time of laryngectomy achieved excellent voice quality perceptually. In contrast, only 50% of secondary TEP patients achieved excellent voice ratings. This difference was statistically robust (p = 0.03). Although both surgical and prosthesis-related complications occurred more frequently following primary TEP, statistically significant differences were not achieved. Neither pre- nor postoperative radiotherapy had any effect on voice restoration or complication rates. Based on these data, primary TEP may be preferable for several reasons, including a greater likelihood of successful voice restoration, a shorter duration of postoperative aphonia, and the elimination of the need for a second operation and interim tube feedings.

Prevention of pharyngoesophageal spasm after laryngectomy with a half-muscle closure technique

Because pharyngoesophageal spasm can limit successful voice restoration after total laryngectomy, 24 patients underwent a modified pharyngeal closure in an effort to avoid this problem. All patients underwent total laryngectomy with appropriate neck dissections and pharyngeal closure with a half-muscle closure technique in which only one side of the remnant constrictor muscles was used to reinforce the primary closure. Twenty-three patients underwent voice restoration. Twenty-two (96%) had a functional voice, and 1 patient (4%) had pharyngoesophageal spasm that required a secondary myotomy. One fistula (4%) occurred and resolved with conservative measures. Quantitative voice analysis demonstrated no significant differences between half-closure patients and control patients for fundamental frequency (96 Hz versus 101 Hz) or intensity (57 dB versus 64 dB). Extensive qualitative analysis by trained and naive listeners revealed no differences. This preliminary report indicates the half-muscle closure modification of the pharyngeal closure at primary laryngectomy may provide a simple and effective means of avoiding pharyngoesophageal spasm and maintaining an effective voice without increased complications.

Effects of sound pressure levels on fundamental frequency in tracheoesophageal speakers

The quality of tracheoesophageal (TE) voice after laryngectomy is dependent on numerous factors. The relative contribution of specific variables is not well described. To evaluate the modulation of fundamental frequency (F0) pitch in TE speakers after total laryngectomy and voice restoration, we instructed 11 TE speakers to complete a series of vocal tasks under standardized conditions. All patients underwent standard laryngectomy with appropriate neck dissection and full-course radiation therapy. Each speaker produced 4 sustained phonations at distinct levels. Sound pressure level (SPL) intensity and F0 measurements were taken for each level. Statistical analysis to assess the relative effect of SPL on F0 demonstrated a statistically significant effect. However, the knowledge of SPL allowed only a 9% greater prediction of F0, indicating that factors other than SPL are integral to the modulation of F0 by TE speakers. These data lend further support to the theory that TE voice is an active process incorporating the myoelastic properties of the pharyngoesophageal segment as well as the properties of aerodynamic flow.

Tracheoesophageal voice following tubed free radial forearm flap reconstruction of the neopharynx

Tracheoesophageal voice restoration after laryngectomy is possible with a variety of neopharyngeal reconstructions. We have used the tubed radial forearm free flap for neopharyngeal reconstruction since 1991. Six patients have undergone voice restoration with the Blom-Singer prosthesis and were available for quantitative and qualitative speech analysis. These patients were compared to five laryngectomy patients with standard pharyngeal closures and similar voice restorations. The free flap patients produced similar loudness levels compared to the standards with soft speech (52.06 dB and 47.19 dB, respectively) and loud speech (62.66 dB and 60.91 dB, respectively). The free flap patients demonstrated adequate intelligibility, with fundamental frequencies comparable to standards (124.82 Hz and 135.66 Hz, respectively), although with increased jitter (5.00% versus 1.96%). No differences were statistically significant, but evaluation by trained and naive listeners demonstrated significant differences in voice quality. This quantitative and qualitative and qualitative analysis of tracheoesophageal speech after radial forearm free flap reconstruction of the neopharynx demonstrates that acceptable voice can be achieved, but with limitations.

Long-term functional results after pharyngoesophageal reconstruction with the radial forearm free flap

For recovery to be deemed adequate, the laryngectomized patient requires restoration of both the ability to swallow and to speak. Immediate results and long-term functional recovery after pharyngoesophageal (PE) reconstruction with the radial forearm free flap were studied in 22 consecutive patients who had undergone primary (n = 3) or secondary (n = 19) reconstructions after total laryngectomy. Circumferential reconstructions were done in 13 patients (mean length 10 cm, range 6 to 16) and patch reconstructions in 9 patients (defect size range 4 x 4 cm to 8 x 7 cm). Flap leakage was evaluated for all patients, and postoperative diet and ability to swallow were evaluated for 16 patients with an intact tongue base. Voice was evaluated for 6 patients with circumferential reconstructions who had later undergone tracheoesophageal puncture with placement of a Blom-Singer voice prosthesis, and the results compared with those of a control group of 5 voice-restored patients who had undergone laryngectomy with primary closure of the pharyngoesophagus. All 22 flaps survived and none of the patients died. Although 7 (32%) reconstructions leaked, all but 1 closed spontaneously. Fourteen (88%) of the patients with an intact tongue base have no dysphagia and are on a regular diet, and 2 remain on an oral liquid diet. Compared with controls, patients with a radial free-flap reconstruction had similar loudness with soft speech (43 dB for controls versus 52 dB for radial patients) and loud speech (61 dB versus 63 dB), comparable fundamental frequencies (136 Hz versus 125 Hz), and increased jitter (2% versus 5%). Speech intelligibility was judged by untrained listeners as excellent for 4 of the patients with radial flaps and good for the other 2. The radial free flap offers the advantages of rapid harvest, high flap reliability, and minimal donor-site and patient morbidity. Leakage rate and deglutition restoration were similar to those of other reconstructions, including the free jejunal flap. Speech rehabilitation in patients secondarily reconstructed with the radial free flap was nearly equivalent to that of total laryngectomy patients who have primary closure of the pharynx and was superior to that reported with other popular PE reconstructions, including the gastric pull-up and the free jejunal flap.

Prosthetic voice restoration with the tracheostomal valve: a clinical experience

INTRODUCTION

Tracheoesophageal puncture (TEP) and use of a voice prosthesis is not a panacea for all laryngectomies. This report presents results of longitudinal treatment of 24 patients with secondary TEP followed longitudinally for 10 years in a private practice setting. Unique to this report is a focus on the use of the entire voice restoration system including both the voice prosthesis and the automatic tracheostomal valve.

METHODS

All patients referred for secondary TEP between 1982 and 1992 are included. Voice quality and the longevity of vocal restoration were ascertained. Clinical problems and their solutions are reported.

RESULTS

Immediate vocal restitution was achieved in 19 of 24 patients. Voicing was produced in two more patients within a few weeks. Four patients were not available for long-term follow-up because of death due to recurrent disease. Overall, 60% of patients were rated excellent and 5% rated fair in communication over a long-term period. Thirty-five percent were rated failure.

DISCUSSION

TEP and the use of the voice restoration system enabled both hands to be free during speaking and is achieved by many laryngectomies. Patient evaluation, training, and follow-up with team problem-solving may increase success rates using this approach.