Prosthetic voice restoration with the tracheostomal valve: a clinical experience

A prospective multicenter clinical feasibility study of a new automatic speaking valve for postlaryngectomy voice rehabilitation

Evaluation of short- and long-term clinical feasibility and exploration of limitations and advantages of a new automatic speaking valve (ASV) for laryngectomized patients with integrated HME, the Provox FreeHands FlexiVoice (FlexiVoice). This ASV not only enables automatic, but also manual closure of the valve. A multicenter, prospective clinical study in 40 laryngectomized patients was conducted. Participants were asked to use the FlexiVoice for 26 weeks. The primary outcome measure was long-term compliance. Secondary outcome measures were: patient preference, hours of FlexiVoice use, device life of adhesive, voice and speech quality, and quality of life. After 26 weeks, 15 patients (37.5 %) were using the FlexiVoice on a daily basis, for a mean of 12.64 h/day (SD ± 5.03). Ten patients (25 %) were using the device on a non-daily basis, for a mean of 3.76 h/day (SD ± 2.07). The remaining 15 patients (37.5 %) discontinued using the FlexiVoice. Sixty percent of the 25 long-term users applied both automatic and manual closure of the valve. Unpredictable fixation of the adhesive was the main reason for discontinuing or not using the FlexiVoice on a daily basis. Overall, 18 patients (45 %) preferred the FlexiVoice, 16 patients (40 %) their usual HME, 3 patients (7.5 %) their usual ASV, 1 patient (2.5 %) preferred no device at all, and in 2 patients preference was not recorded. The minor technical issues identified could be corrected. The Provox FreeHands FlexiVoice appears to be a useful ASV, which allows for hands-free speech in a larger proportion of laryngectomized patients in the present cohort. The additional manual closure option of the device is beneficial for maintaining the adhesive seal longer.

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.

Multivariable analysis of risk factors for enlargement of the tracheoesophageal puncture after total laryngectomy

BACKGROUND

Enlarged tracheoesophageal puncture (TEP) is a challenging complication of surgical prosthetic voice restoration. Prevention of this complication requires identification of high-risk individuals, and surgical and prosthetic correlates of TEP enlargement.

METHODS

Multivariable logistic regression methods were used to analyze preoperative, perioperative, and postoperative risk factors for enlarged TEP in a 5-year retrospective cohort.

RESULTS

Enlarged TEP only occurred in irradiated patients. Adjusting for length of follow-up and timing of TEP, advanced (N2 or N3) nodal disease (odds ratio [OR](adjusted) , 4.3; 95% confidence interval [CI], 1.0-19.1), postoperative stricture (OR(adjusted) , 3.2; 95% CI, 1.2-8.6), and diagnosis of locoregional recurrence or distant metastasis after laryngectomy (OR(adjusted) , 6.2; 95% CI, 2.3-16.4) increased risk of enlarged TEP. Extended resection and preoperative nutritional status were also significantly associated with enlarged TEP. Prosthetic parameters did not significantly correlate with enlargement.

CONCLUSION

Development of enlarged TEP is a multifactorial process related to both baseline and postoperative factors.

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 external neck brace to support the peristomal fixation of an automatic stoma valve (ASV): 3D stereophotogrammetrical assessment

CONCLUSION

The external neck brace (ENB) is a new concept in the improvement of peristomal fixation of an automatic stoma valve (ASV), which was evaluated with a new imaging method. The addition of the ENB to the Flexiderm (FLD) and Xtrabase (XB) adhesives significantly reduced absolute mean differences between the speech and the non-speech conditions.

OBJECTIVES

After total laryngectomy, peristomal fixation problems of adhesives and stoma valves are still the main reasons for the relatively small number of patients that actually use an ASV on a daily basis. Several concepts could not prevent these fixation problems. To overcome or at least diminish these attachment problems, an ENB has been developed to support peristomal adhesives. The mechanism behind this brace is that it absorbs the high stomal pressures created during tracheoesophageal speech. In this pilot study the mechanism outlined above was objectified using 3D stereophotogrammetrical measurements.

METHODS

This was a prospective clinical pilot study in a university hospital setting, involving nine laryngectomized patients. Ten 3D images were taken of all patients using stereophotogrammetry; five pictures during a moment of speech and five during a non-speech condition. Two different peristomal adhesives were used during these two conditions: the Provox Flexiderm (FLD) adhesive and the Provox Xtrabase (XB) adhesive, both with and without the addition of the ENB. Besides these four combinations, a final fifth set-up using all the components (FLD + XB-ring + ENB) was added. Absolute mean differences were compared between two photographs of the area of interest, which is covered by the adhesive for all five different set-ups mentioned above. This was done during speech and non-speech conditions.

RESULTS

Absolute mean differences at the region of the base plate between speech and non-speech conditions were most obvious while using just the FLD adhesive (4.70 mm). The use of the ENB significantly reduced the absolute mean difference to 0.58 mm (p < 0.02). The suggested set-up with a basis of the FLD adhesive combined with the solid ring extracted from the XB adhesive and the ENB showed the smallest absolute mean difference of 0.38 mm between speech and non-speech conditions (p < 0.025).

[Finger-free speech with the Provox FreeHands HME Automatic Tracheostoma Valve system. Clinical long-term experience]

INTRODUCTION

The use of voice prostheses allows excellent rehabilitation of laryngectomized patients but it is considered a disadvantage that the tracheostoma must be closed manually for speech production. This limits their ability to simultaneously communicate by gestures or to work with both hands. An automatic tracheostoma valve helps patients to overcome this problem.

PATIENTS, MATERIAL AND METHODS

A total of 17 laryngectomized patients were asked to join a long-term study 18 months after having been fitted with a Provox FreeHands HME Automatic Tracheostoma Valve system. The patients completed a questionnaire in order to assess satisfaction, voice quality, wearing comfort, fixation, potential problems and the effectiveness of the HME cassette.

RESULTS

Of the 17 patients 4 discontinued the study due to problems of securing the valve to the skin (n=2) or fistula leakage (n=2). Of the remaining patients 7 wore the valve daily for an average of 6 h. Of the patients 76% considered it a great advantage to be able to speak without using their hands. With the Provox FreeHands HME Automatic Tracheostoma Valve system, maximum phonation time was 8.5 s (+/-6.8) and the dynamic range was 21.7 decibels (+/-5.6).

CONCLUSION

The results show that the Provox FreeHands HME Automatic Tracheostoma Valve system not only allows hands-free speech but is also associated with excellent long-term compliance and good voice rehabilitation.

Compliance, quality of life and quantitative voice quality aspects of hands-free speech

CONCLUSIONS

With the use of a new automatic stoma valve (ASV) it appears possible to rehabilitate patients who have previously been unsuccessful in acquiring hands-free speech. As well as making daily ASV use possible for an additional group of patients, this new device was also appreciated by many patients as an additional rehabilitation tool for specific occasions. Despite statistically significant improvements in aspects of voice and breathing using this novel ASV, improvement of peristomal adhesion is probably the main factor needed to further increase success rates. Nevertheless, our results show that it makes sense to keep trying to achieve hands-free speech, even if previous attempts have failed.

OBJECTIVE

To make a long-term (6 months) assessment of compliance and aspects of voice, breathing and quality of life using a new ASV: the Provox FreeHands heat and moisture exchanger (HME).

MATERIAL AND METHODS

This was a prospective clinical multicentre trial in 79 laryngectomized patients (8 regular ASV users, 58 previously unsuccessful users and 13 new users). Data were collected at baseline and after 1 and 6 months by means of European Organization for Research and Treatment of Cancer Quality of Life questionnaires and specific structured questionnaires concerning compliance, skin adhesion, voicing and pulmonary aspects. An objective assessment of voice parameters (maximum phonation time, maximum phonation time while counting, dynamic loudness range and number of pauses in a standard read-aloud text) was made for comparison of different stoma occlusion methods (digital occlusion via an HME and two different ASVs). A subjective assessment of overall voice quality was made.

RESULTS

After 6 months, 19% of patients used the new ASV on a daily basis (mean 5 h/day), while 57% used it on an irregular basis as an additional rehabilitation tool for special occasions. Two-thirds of the study group indicated that they would continue to use the new ASV after the study period. With respect to the objective parameters, statistically significantly better maximum phonation times and dynamic loudness ranges were observed with the new ASV compared to the Blom-Singer ASV. However, the best results for all the objective parameters were obtained with digital occlusion via the Provox HME.

Swallowing and speech therapy after definitive treatment for laryngeal cancer

As the trend in laryngeal cancer treatment shifts towards organ-conservation surgeries and organ-preservation protocols, patients will more often retain anatomy vital to communication and swallowing. Despite a conservative approach, results of treatment may have debilitating effects. Rehabilitation efforts are directed towards a return to functional, if not normal, status. Although there are predictable trends in voice and swallowing disorders of patients with laryngeal cancer, posttreatment dysphonia and dysphagia are diverse in presentation. Considering the significant diversity of this population, speech pathologists should work closely with otolaryngologists to determine the most appropriate treatment for each patient. As this article demonstrates, voice and swallowing therapy are necessary components of the rehabilitation process following treatment for head and neck cancers. As always, treatment is tailored to the specific individual and based on information obtained during a thorough evaluation by a speech pathologist. Fortunately, with the help of voice and swallowing therapy, many patients return to functional communication and oral feeding.

Current trends in laryngectomy rehabilitation: a survey of speech-language pathologists

This study determined the perceptions of experienced speech-language pathologists regarding current practices in the speech rehabilitation of laryngectomy patients since the introduction of the tracheoesophageal puncture-voice prosthesis technique in 1980. The sample population consisted of 151 experienced speech-language pathologists, or 43% of those who were sent questionnaires. The speech-language pathologists ranked tracheoesophageal puncture-voice prosthesis as their most preferred speech rehabilitation method and the electrolarynx as their least preferred, even though the electrolarynx continues to be the most frequently used method. Variable use of the tracheoesophageal puncture procedure by otolaryngologists was reported, with only a small portion perceived as using it routinely. About 65% of the speech-language pathologists reported that more than half of the laryngectomy patients were being given choices among speech rehabilitation methods. Nearly 50% of the speech-language pathologists reported that fewer than six speech therapy sessions were necessary with tracheoesophageal puncture patients, whereas more than 20% reported the need for 10 sessions or more. Use of manual closure of the tracheostoma by tracheoesophageal puncture patients far outweighed their use of automatic speaking valves. Most speech-language pathologists reported that they were involved in teams with otolaryngologists to determine patient suitability for tracheoesophageal puncture and to troubleshoot problems. Eighteen different categories of medical and speech production problems were reported.