Performance and attitudes toward real-time computer-aided polyp detection during colonoscopy in a large tertiary referral center in the United States

BACKGROUND AND AIMS

Computer-aided detection (CADe) has been shown to improve polyp detection in clinical trials. Limited data exist on the impact, utilization, and attitudes toward artificial intelligence (AI)-assisted colonoscopy in daily clinical practice. We aimed to evaluate the effectiveness of the first U.S. Food and Drug Administration-approved CADe device for polyp detection in the United States and the attitudes toward its implementation.

METHODS

We performed a retrospective analysis of a prospectively maintained database of patients undergoing colonoscopy at a tertiary center in the United States before and after a real-time CADe system was made available. The decision to activate the CADe system was at the discretion of the endoscopist. An anonymous survey was circulated among endoscopy physicians and staff at the beginning and conclusion of the study period regarding their attitudes toward AI-assisted colonoscopy.

RESULTS

CADe was activated in 52.1% of cases. Compared with historical control subjects, there was no statistically significant difference in adenomas detected per colonoscopy (1.08 vs 1.04, P = .65), even after excluding diagnostic and therapeutic indications and cases where CADe was not activated (1.27 vs 1.17, P = .45). In addition, there was no statistically significant difference in adenoma detection rate (ADR), median procedure, and withdrawal times. Survey results demonstrated mixed attitudes toward AI-assisted colonoscopy, of which main concerns were high number of false-positive signals (82.4%), high level of distraction (58.8%), and impression it prolonged procedure time (47.1%).

CONCLUSIONS

CADe did not improve adenoma detection in daily practice among endoscopists with high baseline ADRs. Despite its availability, AI-assisted colonoscopy was only activated in half of the cases, and multiple concerns were raised by staff and endoscopists. Future studies will help elucidate the patients and endoscopists that would benefit most from AI-assisted colonoscopy.

Cough strength and expiratory force in aspirating and nonaspirating postradiation head and neck cancer survivors

OBJECTIVE

Expiratory functions that clear aspiration from the airway are compromised in patients with neurogenic dysphagia for whom cough and expiratory force may be impaired by the primary disease process. The relationship between expiratory function, cough, and aspiration is less clear in head and neck cancer (HNC) survivors for whom the disease process does not directly impact the lower respiratory system. Our objective was to compare mechanisms of airway clearance (expiratory force and cough) with aspiration status in postradiated HNC survivors.

STUDY DESIGN

Cross-sectional study.

METHODS

One hundred and three disease-free HNC survivors ≥ 3-months postradiotherapy referred for modified barium swallow studies were prospectively enrolled regardless of dysphagia status. Maximum expiratory pressures (MEPs) and peak cough flow (PCF) measures were taken at enrollment and examined as a function of aspiration status using generalized linear regression methods.

RESULTS

Thirty-four (33%) patients aspirated. Maximum expiratory pressure and PCF demonstrated a moderate positive correlation (Pearson's r = 0.35). Adjusting for sex and age, MEPs were on average 19.2% lower (21.1 cm H₂ O, 95% confidence interval [CI] 5.3, 36.8) among aspirators. Peak cough flow was also 14.9% lower (59.6 L/minute, 95% CI 15.8, 103.3) among aspirators after adjusting for age and sex.

CONCLUSION

Expiratory functions were depressed in postradiated HNC aspirators relative to nonaspirators, suggesting that airway protection impairments may extend beyond disrupted laryngopharyngeal mechanisms in the local treatment field. Exercises to strengthen subglottic expiratory force-generating capacity may offer an adjunctive therapeutic target to improve airway protection in chronic aspirators after head and neck radiotherapy.

LEVEL OF EVIDENCE

2b. Laryngoscope, 128:1615-1621, 2018.

Expiratory muscle strength training for radiation-associated aspiration after head and neck cancer: A case series

OBJECTIVE/HYPOTHESIS

Expiratory muscle strength training (EMST) is a simple, inexpensive, device-driven exercise therapy. Therapeutic potential of EMST was examined among head and neck cancer survivors with chronic radiation-associated aspiration.

STUDY DESIGN

Retrospective case series.

METHODS

Maximum expiratory pressures (MEPs) were examined among n = 64 radiation-associated aspirators (per penetration-aspiration scale score ≥ 6 on modified barium swallow). Pre-post EMST outcomes were examined in a nested subgroup of patients (n = 26) who enrolled in 8 weeks of EMST (25 repetitions, 5 days/week, 75% load). Nonparametric analyses examined effects of EMST on the primary endpoint MEPs. Secondary measures included swallowing safety (Dynamic Imaging Grade of Swallowing Toxicity [DIGEST]), perceived dysphagia (M.D. Anderson Dysphagia Inventory [MDADI]), and diet (performance status scale for head and neck cancer patients [PSSHN]).

RESULTS

Compared to sex-matched published normative data, MEPs were reduced in 91% (58 of 64) of aspirators (mean ± standard deviation: 89 ± 37). Twenty-six patients enrolled in EMST and three patients withdrew. MEPs improved on average 57% (87 ± 29 to 137 ± 44 cm H₂ O, P < 0.001) among 23 who completed EMST. Swallowing safety (per DIGEST) improved significantly (P = 0.03). Composite MDADI scores improved post-EMST (pre-EMST: 59.9 ± 17.1, post-EMST: 62.7 ± 13.9, P = 0.13). PSSHN diet scores did not significantly change.

CONCLUSION

MEPs were reduced in chronic radiation-associated aspirators relative to normative data, suggesting that expiratory strengthening could be a novel therapeutic target to improve airway protection in this population. Similar to findings in neurogenic populations, these data also suggest improved expiratory pressure-generating capabilities after EMST and translation to functional improvements in swallowing safety in chronic radiation-associated aspirators.

LEVEL OF EVIDENCE

4. Laryngoscope, 128:1044-1051, 2018.

Influence of timing, radiation, and reconstruction on complications and speech outcomes with tracheoesophageal puncture

BACKGROUND

We evaluated the impact of radiation, reconstruction, and timing of tracheoesophageal puncture (TEP) on complications and speech outcomes.

METHODS

Retrospective review identified 145 patients who underwent TEP between 2003 and 2007.

RESULTS

Ninety-nine patients (68%) had primary and 46 (32%) had secondary TEP, with complications occurring in 65% and 61%, respectively (p = .96). Twenty-nine patients (20%) had major complications (18 primary and 11 secondary; p = .42). Ninety-four patients (65%) had pre-TEP radiation, 39 (27%) post-TEP radiation, and 12 (8%) no radiation. With patients grouped by TEP timing and radiation history, there was no difference in complications, fluency, or TEP use. With mean 4.7-year follow-up, 82% primary and 85% secondary used TEP for primary communication (p = .66). Free-flap patients used TEP more commonly for primary communication after secondary versus primary TEP (90% vs 50%; p = .02).

CONCLUSION

Primary and secondary tracheoesophageal speakers experience similar high rates of complications. Extent of pharyngeal reconstruction, rather than radiation, may be more important in selection of TEP timing. © 2016 Wiley Periodicals, Inc. Head Neck 38: 1765-1771, 2016.

Dynamic Imaging Grade of Swallowing Toxicity (DIGEST): Scale development and validation

BACKGROUND

The National Cancer Institute's Common Terminology Criteria for Adverse Events (CTCAE) is the universal framework for toxicity reporting in oncology trials. The objective of this study was to develop a CTCAE-compatible modified barium swallow (MBS) grade for the purpose of grading pharyngeal dysphagia as a toxicity endpoint in cooperative-group organ-preservation trials for head and neck cancer (HNC). It was hypothesized that a 5-point, CTCAE-compatible MBS grade (Dynamic Imaging Grade of Swallowing Toxicity [DIGEST]) based on the interaction of pharyngeal residue and laryngeal penetration/aspiration ratings would be feasible and psychometrically sound.

METHODS

A modified Delphi exercise was conducted for content validation, expert consensus, and operationalization of DIGEST criteria. Two blinded raters scored 100 MBSs conducted before or after surgical or nonsurgical organ preservation. Intrarater and interrater reliability was tested with weighted κ values. Criterion validity against oropharyngeal swallow efficiency (OPSE), the Modified Barium Swallow Impairment Profile (MBSImP™©), the MD Anderson Dysphagia Inventory (MDADI), and the Performance Status Scale for Head and Neck Cancer Patients (PSS-HN) was assessed with a 1-way analysis of variance and post hoc pairwise comparisons between DIGEST grades.

RESULTS

Intrarater reliability was excellent (weighted κ = 0.82-0.84) with substantial to almost perfect agreement between raters (weighted κ = 0.67-0.81). DIGEST significantly discriminated levels of pharyngeal pathophysiology (MBSImP™©: r = 0.77; P < .0001), swallow efficiency (OPSE: r = -0.56; P < .0001), perceived dysphagia (MDADI: r = -0.41; P < .0001), and oral intake (PSS-HN diet: r = -0.49; P < .0001).

CONCLUSIONS

With the development of DIGEST, the MBS rating has been adapted to the CTCAE nomenclature of ordinal toxicity grading used in oncology trials. DIGEST offers a psychometrically sound measure for HNC clinical trials and investigations of toxicity profiles, dose responses, and predictive modeling. Cancer 2017;62-70. © 2016 American Cancer Society.

What is a clinically relevant difference in MDADI scores between groups of head and neck cancer patients?

OBJECTIVE/HYPOTHESIS

To describe clinically relevant between-group differences in MD Anderson Dysphagia Inventory (MDADI) scores among head and neck cancer (HNC) patients.

STUDY DESIGN

Retrospective cross-sectional study was conducted in 1,136 HNC patients seen for modified barium swallow (MBS) studies.

METHODS

The MDADI was administered by written questionnaire at the MBS appointment. MD Anderson Dysphagia Inventory global, composite, and subscale scores were calculated. Anchor-based methods were employed to determine clinically meaningful between-group differences by feeding tube status, aspiration status (per MBS study), and diet level.

RESULTS

Mean MDADI scores for the 1,136 patients were: emotional 65.8 ± 17.3, functional 68.1 ± 19.6, physical 60.1 ± 18.6, global 59.3 ± 28.3, and composite 64.0 ± 17.1. Three hundred seventy-eight patients (33%) were feeding tube-dependent; 395 (34.8%) were aspirators; 122 (11%) were nothing per oral (Performance Status Scale-Head and Neck [PSS-HN] diet = 0); and 249 (22%) ate unrestricted, regular diets (PSS-HN diet = 100). Statistically significant (P < 0.0001) between-group differences (feeding tube vs. no feeding tube, aspirator vs. nonaspirator, oral vs. nonoral diet, PSS-HN diet levels) were observed for all mean MDADI scores (global, composite, and subscales). A mean difference of 10 points in composite MDADI scores differentiated feeding tube-dependent from nontube-dependent patients, aspirators from nonaspirators, and distinct PSS-HN diet levels.

CONCLUSIONS

We identify that a 10-point between-group difference in composite MDADI scores was associated with clinically meaningful between-group differences in swallowing function.

LEVEL OF EVIDENCE

4. Laryngoscope, 126:1108-1113, 2016.

Long-term functional and survival outcomes after induction chemotherapy and risk-based definitive therapy for locally advanced squamous cell carcinoma of the head and neck

BACKGROUND

The purpose of this study was to evaluate long-term outcomes after induction chemotherapy followed by "risk-based" local therapy for locally-advanced squamous cell carcinoma of the head and neck (SCCHN).

METHODS

Forty-seven patients (stage IV; ≥N2b) were enrolled in a phase II trial. Baseline and 24-month functional measures included modified barium swallow (MBS) studies, oropharyngeal swallow efficiency (OPSE), and the MD Anderson Dysphagia Inventory (MDADI). Functional status was assessed at 5 years.

RESULTS

Five-year overall survival (OS) was 89% (95% confidence interval [CI], 81% to 99%). A nonsignificant 13% average reduction in swallowing efficiency (OPSE) was observed at 24 months relative to baseline (p = .191). MDADI scores approximated baseline at 24 months. Among 42 long-term survivors (median, 5.9 years), 3 patients (7.1%) had chronic dysphagia. The rate of final gastrostomy dependence was 4.8% (2 of 42).

CONCLUSION

Sequential chemoradiotherapy achieved favorable outcomes among patients with locally advanced SCCHN, mainly of oropharyngeal origin. MBS and MDADI scores found modest swallowing deterioration at 2 years, and chronic aspiration was uncommon in long-term survivors.

Gastrostomy tube placement in patients with oropharyngeal carcinoma treated with radiotherapy or chemoradiotherapy: factors affecting placement and dependence

BACKGROUND

Although many patients require nutritional support during radiotherapy or chemoradiotherapy for oropharyngeal cancer, little is known regarding the risk factors that predispose to gastrostomy tube (g-tube) placement and prolonged dependence, or the therapeutic interventions that may abrogate these effects.

METHODS

We performed a retrospective medical chart review of patients who were treated for primary oropharyngeal cancer at a tertiary care center from 2003 to 2008. Patients who had a complete response at the primary site at 1-year posttreatment were included. G-tube placement and dependence ≥6 months were evaluated in relationship to site and stage of primary tumor, baseline characteristics, treatment type, smoking status, and swallowing intervention.

RESULTS

We evaluated 474 patients (79%) with oropharyngeal cancer; 215 patients (40%) had concurrent chemotherapy, 73 patients (15%) had induction chemotherapy, and 69 patients (15%) had induction chemotherapy followed by concurrent chemotherapy. Two hundred ninety-three patients (62%) received g-tubes, of which 238 (81%) received the g-tube during radiation. At 1-year follow-up, 41 patients (9%) remained dependent on enteral feedings. Placement of g-tubes and prolonged g-tube dependence were significantly more likely in patients with T3 to 4 tumors (p < .001), baseline self-reported dysphagia (p < .001), odynophagia (p < .001), >10% baseline weight loss (p < .001), and in those treated with concurrent chemoradiotherapy. Patients who reported adherence to exercises had significantly lower rates of g-tube placement (p < .001), and duration of dependence was significantly shorter in those who reported adherence to swallowing exercises (p < .001).

CONCLUSION

Almost 40% of patients with oropharyngeal cancer treated with nonsurgical organ preservation modalities may avoid feeding tube placement. Factors that predispose to g-tube placement and prolonged dependence include T3 to T4 tumors, concurrent chemotherapy, current smoking status, and baseline swallowing dysfunction or weight loss. Adherence to an aggressive swallowing regimen may reduce long-term dependence on enteral nutrition and limit the rate of g-tube placement overall.

Gastrostomy tube placement in patients with hypopharyngeal cancer treated with radiotherapy or chemoradiotherapy: factors affecting placement and dependence

BACKGROUND

Placement of gastrostomy tubes (g-tubes) in patients with hypopharyngeal cancers undergoing radiation and chemotherapy is generally empirically determined. We examined our experience to identify predictive factors for g-tube placement and length of dependence.

METHODS

We performed a retrospective review of all patients with primary hypopharyngeal cancer treated with nonsurgical modalities at a tertiary care center between 2002 and 2008. Rates of g-tube placement and length of dependence on enteral feedings were analyzed in relationship to multiple risk factors.

RESULTS

Forty-three patients with hypopharyngeal primary tumors (77%) who had a complete response at the primary site after treatment were included. Thirteen patients (30%) never required g-tube placement. At 1-year follow-up, 11 patients (28%) maintained a g-tube. No clinical variables were significantly associated with g-tube placement. Duration of g-tube dependence was significantly longer in patients with a posterior hypopharyngeal wall primary tumors (p = .026), current smokers (p = .001), and patients with >40 pack-years (p = .010). The duration of g-tube dependence was significantly shorter in those who maintained oral intake at the end of treatment (p = .05), and those who reported adherence to dysphagia exercise regimens (p = .048).

CONCLUSION

Approximately one third of patients with hypopharyngeal tumors treated on organ preservation regimens may be able to avoid g-tube placement, but further research is needed to identify clinical factors that predict g-tube placement in this population. A posterior hypopharyngeal wall primary and smoking history correlated with longer gastrostomy tube dependence. Adherence to aggressive targeted swallowing exercise regimens may help to prevent long-term dependence on feeding tubes.

Functional and oncological outcomes of primary versus salvage transoral laser microsurgery for supraglottic carcinoma

OBJECTIVES

We evaluated the functional and oncological outcomes of transoral laser microsurgery (TLM) in patients with previously untreated supraglottic carcinoma compared with the outcomes in salvage cases after radiation-based treatment.

METHODS

We conducted a retrospective case-control study at a single academic tertiary care institution. The functional outcomes were stratified by prior irradiation and were assessed at baseline, less than 1 week after operation, and at last follow-up.

RESULTS

Five patients underwent TLM for previously untreated disease, and 5 previously irradiated patients underwent salvage TLM for local failure. No patient required tracheostomy. There was no local recurrence after TLM as primary therapy, and none of those patients required radiotherapy. One salvage patient developed local recurrence. The duration of feeding tube dependence (p = 0.049) and the rates of chronic aspiration (more than 1 month after operation; p = 0.048) were significantly higher in the salvage TLM cases than in the previously untreated cases. The median scores on the PSS-HN Understandability of Speech were 75 ("usually understandable") in the salvage group and 100 ("always understandable") in the previously untreated group.

CONCLUSIONS

Both local control and function were better in the previously untreated patients than in the salvage patients. Our findings provide support for the use of TLM as a primary treatment modality for selected supraglottic carcinomas, but also suggest a potential for functional recovery in both previously untreated and salvage cases.

Late dysphagia after radiotherapy-based treatment of head and neck cancer

BACKGROUND

Changing trends in head and neck cancer (HNC) merit an understanding of the late effects of therapy, but few studies examine dysphagia beyond 2 years of treatment.

METHODS

A case series was examined to describe the pathophysiology and outcomes in dysphagic HNC survivors referred for modified barium swallow (MBS) studies ≥ 5 years after definitive radiotherapy or chemoradiotherapy (January 2001 through May 2011). Functional measures included the penetration-aspiration scale (PAS), performance status scale-head and neck (PSS-HN), National Institutes of Health Swallowing Safety Scale (NIH-SSS), and MBS impairment profile (MBSImp).

RESULTS

Twenty-nine patients previously treated with radiotherapy (38%) or chemoradiotherapy (62%) were included (median years posttreatment, 9; range, 5-19). The majority (86%) had oropharyngeal cancer; 52% were never-smokers. Seventy-five percent had T2 or T3 tumors; 52% were N+. The median age at diagnosis was 55 (range, 38-72). Abnormal late examination findings included: dysarthria/dysphonia (76%), cranial neuropathy (48%), trismus (38%), and radionecrosis (10%). MBS studies confirmed pharyngeal residue and aspiration in all dysphagic cases owing to physiologic impairment (median PAS, 8; median NIH-SSS, 10; median MBSImp, 18), whereas stricture was confirmed endoscopically in 7 (24%). Twenty-five (86%) developed pneumonia, half requiring hospitalization. Swallow postures/strategies helped 69% of cases, but no patient achieved durable improvement across functional measures at last follow-up. Ultimately, 19 (66%) were gastrostomy-dependent.

CONCLUSIONS

Although functional organ preservation is commonly achieved, severe dysphagia represents a challenging late effect that may develop or progress years after radiation-based therapy for HNC. These data suggest that novel approaches are needed to minimize and better address this complication that is commonly refractory to many standard dysphagia therapies.

Customization of the voice prosthesis to prevent leakage from the enlarged tracheoesophageal puncture: results of a prospective trial

OBJECTIVES/HYPOTHESIS

Customization of the tracheoesophageal (TE) voice prosthesis (VP) is often preferred over surgical closure to prevent aspiration around the VP in laryngectomized patients with an enlarged tracheoesophageal puncture (TEP), but it has not been thoroughly evaluated.

STUDY DESIGN

Single-institution prospective trial.

METHODS

A prospective trial was conducted to evaluate the effectiveness of a customized VP with the addition of an enlarged tracheal and/or esophageal collar in patients with leakage around an enlarged TEP. Absence of leakage around the VP after placement defined immediate effectiveness. Long-term success was defined by the prevention of adverse events related to leakage during the study period. Events that defined failure included: permanent gastrostomy dependence, aspiration pneumonia, and/or surgical TEP closure.

RESULTS

Twenty-one patients with enlarged TEP were enrolled (2003-2006). Insertion of a customized VP was unsuccessful in one patient; 145 customizations were performed in the remaining 20 patients (median, 3.5 customizations) during the trial period. Of the customizations, 77% (112/145) prevented leakage immediately after VP insertion. The most common adverse event was dislodgement of the prosthesis (11%) or the collar alone (7%) in 18% (26/145) of customized VP placements. Six patients who died of disease were not evaluable for long-term outcomes. Long-term success was achieved in 80% (12/15) of evaluable patients who avoided permanent gastrostomy, aspiration pneumonia, and surgical TEP closure.

CONCLUSIONS

Prosthetic customization offers an effective method to prevent leakage around the VP in many patients with an enlarged TEP, thereby preserving TE voice while avoiding surgical closure in this high-risk population.

Late dysphagia after radiotherapy-based treatment of head and neck cancer

BACKGROUND

Changing trends in head and neck cancer (HNC) merit an understanding of the late effects of therapy, but few studies examine dysphagia beyond 2 years of treatment.

METHODS

A case series was examined to describe the pathophysiology and outcomes in dysphagic HNC survivors referred for modified barium swallow (MBS) studies ≥ 5 years after definitive radiotherapy or chemoradiotherapy (January 2001 through May 2011). Functional measures included the penetration-aspiration scale (PAS), performance status scale-head and neck (PSS-HN), National Institutes of Health Swallowing Safety Scale (NIH-SSS), and MBS impairment profile (MBSImp).

RESULTS

Twenty-nine patients previously treated with radiotherapy (38%) or chemoradiotherapy (62%) were included (median years posttreatment, 9; range, 5-19). The majority (86%) had oropharyngeal cancer; 52% were never-smokers. Seventy-five percent had T2 or T3 tumors; 52% were N+. The median age at diagnosis was 55 (range, 38-72). Abnormal late examination findings included: dysarthria/dysphonia (76%), cranial neuropathy (48%), trismus (38%), and radionecrosis (10%). MBS studies confirmed pharyngeal residue and aspiration in all dysphagic cases owing to physiologic impairment (median PAS, 8; median NIH-SSS, 10; median MBSImp, 18), whereas stricture was confirmed endoscopically in 7 (24%). Twenty-five (86%) developed pneumonia, half requiring hospitalization. Swallow postures/strategies helped 69% of cases, but no patient achieved durable improvement across functional measures at last follow-up. Ultimately, 19 (66%) were gastrostomy-dependent.

CONCLUSIONS

Although functional organ preservation is commonly achieved, severe dysphagia represents a challenging late effect that may develop or progress years after radiation-based therapy for HNC. These data suggest that novel approaches are needed to minimize and better address this complication that is commonly refractory to many standard dysphagia therapies.

Outcomes of elective total laryngectomy for laryngopharyngeal dysfunction in disease-free head and neck cancer survivors

OBJECTIVE

Total laryngectomy (TL) can be offered for management of chronic aspiration, radionecrosis, and/or airway compromise after head and neck cancer (HNC) treatment. The objective of this study was to evaluate functional outcomes after TL in disease-free HNC survivors.

DESIGN

Retrospective case series with chart review.

SETTING

The University of Texas MD Anderson Cancer Center.

PATIENTS

Twenty-three disease-free HNC survivors who underwent TL for laryngopharyngeal dysfunction.

INTERVENTION

TL ± pharyngectomy.

MAIN OUTCOME MEASURES

Post-TL swallowing-related (diet, gastrostomy dependence, and pneumonia rates) and communication outcomes.

RESULTS

All patients who underwent TL for dysfunction were previously treated with radiotherapy (12/23, 52%) or chemoradiotherapy (11/23, 48%). Preoperative complications included aspiration (22/23, 96%), pneumonia (16/23, 70%), tracheostomy (9/23, 39%), and stricture (7/23, 30%); 17 patients (74%) required enteral/parenteral nutrition, and 13 of 23 (57%) were nothing per oral (NPO). Rates of pneumonia, NPO status, and feeding tube dependence significantly decreased after TL (P < .001). At last follow-up after TL, all patients tolerated oral intake, but 4 (17%) required supplemental enteral nutrition. Continued smoking after radiotherapy and a preoperative history of recurrent pneumonia were significantly (P < .05) associated with final tube dependence and/or diet level. Sixteen patients (70%) underwent tracheoesophageal (TE) puncture, and 57% (13 of 23) communicated using TE voice after TL.

CONCLUSION

Salvage TL may improve health status by significantly decreasing the rate of pneumonia and improve quality of life by restoring oral intake in patients with refractory laryngopharyngeal dysfunction after HNC treatment. TE voice restoration may enhance functional outcomes in select patients treated with elective TL for dysfunction.

Tracheostomaplasty: A surgical method for improving retention of an intraluminal stoma button for hands-free tracheoesophageal speech

BACKGROUND

We describe a minimally invasive surgical technique, tracheostomaplasty, to overcome anatomical deformities of the stoma that preclude successful retention of a stoma button for hands free tracheoesophageal (TE) speech.

METHODS

We conducted a retrospective analysis of 21 patients who underwent tracheostomaplasty after laryngectomy to accommodate an intraluminal valve attachment for hands-free TE speech.

RESULTS

Sixteen men and 5 women (median age, 65 years; median follow-up, 27.7 months) underwent tracheostomaplasty; 6 patients developed a mild cellulitis that required therapy and 5 patients required a minor revision surgery. At last follow-up, 15 (71%) patients successfully achieved hands-free TE speech using an intraluminal stoma button. Three patients only retained the intraluminal device to facilitate digital occlusion. Tracheostomaplasty failed in 3 patients because of granulation tissue formation or stomal stenosis.

CONCLUSIONS

Tracheostomaplasty is a successful technique to improve intraluminal retention of a stoma button for hands-free TE speech in laryngectomy patients.

Preliminary Experience With Head and Neck Lymphedema and Swallowing Function in Patients Treated for Head and Neck Cancer

Lymphedema is a collection of high protein fluid in the interstitial tissues that results from trauma, infection, or oncologic treatment that impairs lymphatic drainage. The damaging effects of radiation therapy and surgery on the lymphatic system primarily include edema and fibrosis. Lymphedema most often is recognized as a potentially serious complication for patients with breast, gynecological, or genitourinary cancers that manifests as swelling of the extremities. However, lymphedema in the head and neck region is a common complication of treatments for head and neck cancer. When lymphedema involves the head and neck region, the cosmetic and functional sequelae may be significant. Potential side effects include problems with drooling, mastication, deglutition, articulation, airway obstruction, and poor self image. The potential effects of head and neck lymphedema on swallowing function have not been well-documented and are only recently recognized. Oral preparation and pharyngeal transit are likely most affected. Complete Decongestive Therapy (CDT) is the international standard of care for treating lymphedema of the extremities that combines manual lymphatic drainage (MLD), bandage compression, skin care, and targeted exercise. Preliminary evidence supports the effectiveness of CDT in patients with head and neck lymphedema after cancer treatment.

Secondary tracheoesophageal puncture with in-office transnasal esophagoscopy

OBJECTIVE

To evaluate the outcomes of voice restoration using office-based transnasal esophagoscopy (TNE) to guide placement of the secondary tracheoesophageal puncture (TEP).

DESIGN

Retrospective chart review.

SETTING

Two tertiary care medical centers.

PATIENTS

The study included 39 patients who underwent the TNE-TEP procedure from January 2004 to December 2008.

MAIN OUTCOME MEASURES

Clinical, demographic, and TE speech-related data were recorded to examine the ease, efficiency, complications, and speech-related outcomes.

RESULTS

Among 39 patients identified, the average age was 65 years (age range, 47-83 years), with 32 male (82%) and 7 female (16%) patients. Twenty-five patients (64%) underwent total laryngectomy; 8 (21%) underwent total laryngectomy with partial pharyngectomy; and 14 (36%) underwent microvascular flap reconstruction. The overall success rate of secondary TNE-assisted TEP placement was 97% (n = 38), with 1 unsuccessful attempt. There was no statistically significant correlation found between patients having undergone radiation therapy (either before or after oncologic resection) or a cricopharyngeal myotomy and successful TEP placement, type of reconstruction used to close the pharyngeal defect when compared with the difficulty in the placement of the TEP, development of complications associated with TEP placement, use of the TEP prosthesis, or speech intelligibility at the last follow-up visit. Thirty-one patients (79%) were still using their TEP prosthesis for speech at the last follow-up visit. Of the patients reviewed, 28 (72%) had understandable TE speech.

CONCLUSIONS

In-office TNE-assisted TEP placement can safely be performed, with excellent speech outcomes. Reconstruction with musculocutaneous or microvascular free-tissue transfer did not limit our ability to place secondary TEPs with TNE.

Effect of induction chemotherapy on speech and swallowing function in patients with oral tongue cancer

BACKGROUND

Swallowing physiology, diet, and patient-reported outcomes were evaluated after induction chemotherapy for oral tongue cancer.

METHODS

Fifteen of 23 patients enrolled in a phase II clinical trial of induction chemotherapy followed by surgical resection for oral tongue cancer underwent instrumental and perceptual analysis of speech and swallowing. Oropharyngeal swallow efficiency (OPSE) was calculated. Patient-reported outcomes were collected. We compared pre- and postchemotherapy results.

RESULTS

OPSE scores were not significantly different (p > .05) after induction chemotherapy; however, patient-reported swallowing and diet levels were significantly higher (p < .001 and p = .015, respectively). Diet levels improved from soft-chewable to full diet in most patients. Speech intelligibility did not change (p = .328).

CONCLUSION

It appears that induction chemotherapy has a negligible effect on speech and swallowing physiology but may provide symptomatic improvement of pain and swallowing after treatment. Further investigations are needed to corroborate these findings.

Functional analysis of swallowing outcomes after supracricoid partial laryngectomy

BACKGROUND

In this study, we analyzed swallowing recovery after supracricoid partial laryngectomy (SCPL).

METHODS

We retrospectively reviewed 27 patients treated with SCPL (September 1997 to March 2005). We evaluated recovery course, nutritional outcomes, and swallowing using objective analysis. Modified barium swallow (MBS) study results identified swallowing physiology and therapeutic effectiveness.

RESULTS

Average length of hospitalization was 7.7+/-9.2 days; time to decannulation was 5.3+/-8.2 weeks. The most common complications included pneumonia and subcutaneous emphysema (26%). Twenty-two patients had MBS studies, in which initially, all patients aspirated due to neoglottic incompetency, and impaired base of tongue and laryngeal movements. Although aspiration rates did not change significantly over time, use of appropriately selected swallowing strategies effectively protected the airway (p= .0365). Ultimately, 81% of patients returned to complete oral intake with median tube removal at 9.4 weeks.

CONCLUSION

SCPL produces severe dysphagia initially. Our findings suggest that objective swallowing assessment is important for return to oral nutrition after SCPL.

Functional outcomes after laryngopharyngectomy with anterolateral thigh flap reconstruction

BACKGROUND

We examined speech and swallowing outcomes and complications in patients with anterolateral thigh (ALT) flap reconstruction of cervical esophageal defects.

METHODS

We retrospectively reviewed 29 patients treated with laryngopharyngectomy and ALT flap reconstruction at The University of Texas M. D. Anderson Cancer Center from March 2002 to July 2004. We compared complication rates, nutritional intake, number of tracheoesophageal punctures (TEPs), speech fluency and use, operative defects, and radiotherapy effects.

RESULTS

Twenty-two patients had circumferential defects, and seven had partial defects. Twenty-four patients had radiotherapy. Eleven patients underwent TEP. Higher complication rates in patients after TEP compared with those without TEP were not statistically significant (p = .268). Ninety percent of patients with TEP spoke fluently. Ninety percent of all patients returned to oral alimentation without significant effect from TEP (p = 1.00), complications (p = 1.00), radiation therapy (p = 1.00), or surgical defect (p = .56).

CONCLUSIONS

The ALT flap successfully reconstructs laryngopharyngeal defects with excellent speech and swallowing results.

Functional Outcomes after Circumferential Pharyngoesophageal Reconstruction

OBJECTIVE

To determine functional speech and swallowing outcomes, morbidity, and complication rates after reconstruction of circumferential pharyngoesophageal defects using a jejunal versus an anterolateral thigh (ALT) flap.

STUDY DESIGN

Retrospective analysis.

METHODS

We reviewed the medical records of 58 patients with circumferential pharyngoesophageal defects, 27 with ALT flap reconstruction, and 31 with jejunal interposition. We compared complication rates, intensive care unit (ICU) and hospital stays, nutritional intake, number of tracheoesophageal punctures (TEPs) performed, TE speech fluency, and functional use. Modified barium swallow studies assessed swallowing physiology.

RESULTS

Patient characteristics were similar. Total flap loss occurred in one (3.7%) patient with an ALT flap and two (6.5%) patients with jejunal interposition (P = 1.000), fistula in two (7.4%) ALT patients and one (3.2%) jejunal patient (P = .5931), and anastomotic stricture in four (15%) ALT patients and six (19.4%) jejunal patients (P = .7371). ICU and hospital stays were greater for jejunal patients (P = .001, <.001, respectively). TEPs were performed in eight jejunal patients and nine ALT patients. Eighty-nine percent of ALT patients and 63% of jejunal patients were fluent, whereas 78% of ALT patients and 25% of jejunal patients used TE speech to communicate. Ninety-one percent of ALT patients and 73% of jejunal patients resumed oral intake (P = .151). The most common causes of dysphagia were impaired tongue base retraction (62% jejunum) and disordered motility (62% jejunum, 67% ALT).

CONCLUSIONS

For circumferential pharyngoesophageal reconstruction, the ALT flap results in similar complication rates, but shorter ICU and hospital stays, and better speech and swallowing compared with jejunal reconstruction.