Laryngeal Cleft Research Articles

Management of Symptomatic Grade I and II Laryngeal Cleft: Experience of a Tertiary Care Center and Review of Literature.

Laryngeal cleft is a rare pathology and needs a high index of suspicion for diagnosis. Various classifications are used but the Inglis classification which describes 4 grades of cleft is most widely accepted. Grade 3 and 4 clefts are very rare and are usually associated with other congenital abnormalities. Grade 1 and 2 clefts are more common and can be easily corrected with good outcomes. We are presenting our experience with 9 cases of low grade (Grade 1 and 2) laryngeal cleft which were managed successfully in our department. Out of the 9 cases 4 failed conservative management and required a trans-oral repair. All patients improved with management, except one who intermittently developed another episode of pneumonia 2months' post-surgery. However satisfactory cleft obliteration was confirmed on endoscopy and the patient has been under close follow up ever since. Majority of low grade laryngeal clefts can be managed with dietary modifications and feeding rehabilitation. Those who do not respond usually require surgical repair with near complete resolution of symptoms.

Multidisciplinary approach to paediatric aerodigestive disorders: A single-centre longitudinal observational study.

Aerodigestive clinics (ADCs) are multidisciplinary programmes for the care of children with complex congenital or acquired conditions affecting breathing, swallowing and growth. Our objective was to describe the demographic, clinical, etiological and investigational profile of children attending the inaugural ADC at a tertiary paediatric centre in Queensland. Children referred to the ADC at Queensland Children's Hospital from August 2018 to December 2019 were included. Data on clinical, growth and lung function parameters, bronchoscopy and upper gastrointestinal endoscopy findings, thoracic imaging and comorbidities were retrospectively analysed. Fifty-six children (median (range) age 4 years (3 months-15 years); 18 female) attended the ADC during this 17-month period. Forty-six (82%) children had previous oesophageal atresia with tracheo-oesophageal fistula; 43 of these were type C. Previous isolated oesophageal atresia, congenital diaphragmatic hernia and congenital pulmonary malformation were the underlying disorder in three (5%) children each, with one child having a repaired laryngeal cleft. Vertebral Anal Tracheo Esophageal Renal Limb anomalies (VACTERL)/Vertebral Anal Tracheo Esophageal renal anomalies (VATER) association was seen in 21 (38%) children. Growth was adequate (median weight and body mass index z-score -0.63 and -0.48, respectively). Thirty-four (61%) children reported ongoing wet cough, with 12 (21%) requiring previous hospital admission for lower respiratory tract infection. Fourteen (25%) had bronchiectasis on computed tomography chest and 33 (59%) had clinical tracheomalacia, apparent on bronchoscopic examination in 21 patients. Dysphagia was reported in 15 (27%) children, 11 (20%) were gastrostomy feed-dependent and 5 (9%) had biopsy-proven eosinophilic oesophagitis. High proportion of children attending the ADC have ongoing respiratory symptoms resulting in chronic pulmonary suppuration and bronchiectasis. Potential benefits of this model of care need to be studied prospectively to better understand the outcomes.

Gross morphological, histological and scanning electron specifications of the oropharyngeal cavity of the hooded crow (Corvus cornix pallescens).

The present study was carried out on the oropharyngeal cavity of the hooded crow to investigate the gross and microscopic structures via gross anatomy, light microscopy and scanning electron microscopy (SEM). The gross anatomy clarified the elongated triangular shape of the oropharyngeal cavity with a non-protruding tongue with a bifid apex. The lingual body contained median groove rostrally and separated caudally from the root by a transverse papillary crest. The laryngeal mound located posterior to the lingual root, contained midline laryngeal cleft and bounded caudally by a transverse row of pharyngeal papillae. The palate contained choanal cleft rostrally and infundibular slit caudally in addition to five palatine ridges. By light microscopy, the dorsal lingual epithelium was highly keratinised stratified squamous with a lingual nail in the most rostral part of the apex. Then, the thickness of the keratin layer decreased caudally, while in the ventral surface, the lining epithelium became non-keratinised. The entoglossum supported the lingual body and root, but not extended to the apex. The lining epithelium of the palate was also keratinised stratified squamous and became none-keratinised at the oral side of the choanal cleft. There were numerous lobules of polystomatic salivary glands in the lingual root and the palate. SEM revealed the arrangement of different types of papillae covering both the floor and the roof of the oropharynx besides numerous openings of salivary glands in the lingual root, laryngeal mound and the palate. These findings reflect the functional relationship of the oropharyngeal cavity of the hooded crow during feeding.

Familial and genetic factors in laryngeal cleft: Have we learned anything?

IntroductionLaryngeal clefts are rare congenital anomalies characterized by failed fusion of the posterior cricoid lamina or incomplete development of the tracheoesophageal septum. While most cases are sporadic, laryngeal cleft may be associated with other congenital anomalies or syndromes. Though not frequently reported, familial occurrence of laryngeal cleft has been noted in our clinical experience. The goal of this research is to describe the existing literature and our own experience surrounding familial occurrence of laryngeal cleft that may help elucidate its underlying genetic basis. MethodsComprehensive literature search was conducted and retrospective chart review was performed on 8 sets of siblings diagnosed at our institution. Data assessed included demographics, type of cleft, and genetic findings. ResultsLaryngeal cleft appears to be mostly sporadic. We evaluated data at our institution over a 10-year period and identified 19 patients from 8 families demonstrating familial occurrence of laryngeal cleft. Six (75%) families had two affected siblings, one family (12.5%) had three affected siblings, and one family (12.5%) had four affected siblings. There was no evidence of sex predilection, with half the patients being male (10/19, 52.6%). Fourteen patients (73.7%) had Type 1 clefts and five (26.3%) had Type 2 clefts. Genetic findings were available for review in five patients from three families. ConclusionBeyond a few known syndromes, laryngeal cleft has largely been thought to be sporadic. However, findings from the existing literature and our own experience with familial laryngeal cleft in eight families suggest additional genetic factors are yet to be elucidated.

Not Just for Kids: A Rare Case of Congenital Laryngeal Cleft in an Adult

This case report aims to increase awareness of the diagnosis of laryngeal cleft in adult patients and discuss treatment options. Case report and review of the literature. We present a case of a 56-year-old male referred for hoarseness and chronic cough that was discovered to have a type 2 laryngeal cleft. He had chronic aspiration, recurrent pneumonia, and a hoarse voice for his entire life. In contrast to most described cases in adults, this patient was successfully treated with an endoscopic approach using absorbable suture. Laryngeal clefts are uncommon and almost always detected in childhood, making adult laryngeal clefts extremely rare. Endoscopic repair is a feasible and successful treatment option in these cases.

Prematurity and associated future paediatric airway pathology: experience from a single tertiary paediatric ENT centre.

Enhanced management of the pre-term patient has resulted in improved survival rates in increasingly premature patients. Although prematurity predisposes to congenital airway pathology, there is also increased risk of endotracheal intubation, and therefore acquired subglottic pathology. We sought to evaluate airway pathology in children outside the neonatal period with a history of prematurity to explore the relationship between prematurity and upper airway pathologies. Data for patients undergoing elective microlaryngobronchoscopy (MLB) at our centre were collected prospectively over a 5-year period. Patients identified as premature were sub-classified by the grade of prematurity. 339 patients over 1month of age underwent MLB, of which 56 (16.5%) were born prematurely. Of those with identified airway pathology, 49 (23.4%) were born prematurely, accounting for 32.6% of subglottic stenosis (n = 30), 24% of laryngomalacia (n = 13) and 19% of laryngeal cleft diagnoses (n = 16). 49 premature patients (87.5%) had one or more airway pathologies diagnosed. Multi-level airway pathology was seen in twelve premature infants (21.4%), demonstrating a statistically significant association (odds ratio 3.396; 95% CI 1.697-6.842; p value < 0.0016). Incidence of airway pathology, the severity of airway disease and multi-level airway pathology were not related to the grade of prematurity. Premature patients account for a significant proportion of the workload within our tertiary centre due to improving neonatal care and survival in pre-term infants. We suggest early paediatric ENT evaluation for ex-premature patients with symptoms of airway pathology, with a low threshold for MLB. Improving neonatal survival rates in ever-increasing prematurity will require the further provision of specialist paediatric ENT services to manage their ongoing care.

What happens when the test is negative: Evaluating adherence to malaria diagnostic algorithms among under-five children in the Northern zone of Volta Region, Ghana

There are different types of congenital anomalies who have its origin in the embryological development of the esophagus and trachea at the fifth and seventh weeks. Examples of these are Laryngotracheoesophageal clefts, esophageal atresia with or without fistula and Congenital Esophageal Stenosis (CES) [1-3].

Congenital esophageal stenosis with tracheoesophageal window

There are different types of congenital anomalies who have its origin in the embryological development of the esophagus and trachea at the fifth and seventh weeks. Examples of these are Laryngotracheoesophageal clefts, esophageal atresia with or without fistula and Congenital Esophageal Stenosis (CES) [1-3].

Pediatric airway surgery under spontaneous respiration using high-flow nasal oxygen

ObjectivesIn pediatric airway surgery, SponTaneous Respiration using IntraVEnous anesthesia and Hi-flow nasal oxygen (STRIVE Hi) has not been well explored. Here, we report our experience of using STRIVE Hi in endoscopic evaluations and surgeries of the pediatric airway. MethodsThis retrospective review was based on 45 airway procedures conducted under STRIVE Hi, performed by a single surgeon at a single institute from May 2017 to September 2018. After induction of anesthesia, continuous infusion with propofol and remifentanil was provided to ensure an adequate level of anesthesia and supply of humidified oxygen via a nasal cannula. Monitoring was conducted using a transcutaneous CO2 sensor and a pulse oximeter, and the oxygen reserve and bispectral indexes were measured. No muscle relaxant was administered. ResultsThe median age of the patients was 16.0 months (range: 1–215 months) and the median weight was 10.2 kg (range: 2.4–38.5 kg). The median duration of spontaneous respiration was min 40 (range: 10–140 min). The airway procedures included diagnostic microlaryngoscopy, tracheocutaneous fistula excision, balloon dilation, supraglottoplasty, laryngeal cleft repair, injection laryngoplasty, papilloma excision, and subglottic cyst removal. During these procedures, STRIVE Hi facilitated evaluation of dynamic obstruction of the airway and the immediate outcome of surgical treatment and provided a good surgical view. Intubation and the termination of spontaneous respiration were required in only five patients. ConclusionsSTRIVE Hi is an effective and feasible anesthesia option in pediatric airway surgery. It provides unobstructed surgical access and is applicable to a wide range of procedures.

Side effects and complications of injection laryngoplasty for treatment of congenital type 1 laryngeal clefts

IntroductionInjection laryngoplasty (IL) is a brief, minimally invasive procedure involving injection of agents to augment the interarytenoid space. It was initially described as a diagnostic and temporizing measure for management of type one laryngeal clefts (LC1) and associated swallowing dysfunction (SwD), but more gradually it is being proposed as a definitive treatment modality. However, the morbidity of this treatment for LC1 remains under-investigated. This study sought to determine the morbidities associated with IL as a treatment modality for LC1 and associated SwD. MethodSingle centre retrospective review of a prospective surgical database of one Pediatric Otolaryngologist at a tertiary care center. Participants included pediatric patients with an endoscopic diagnosis of LC1, treated with IL between 2000 and 2018—excluding those with concurrent upper airway anomalies. Patient charts were reviewed for demographic information, immediate post-op complications (within the first 14 days following IL), and subsequent management. ResultsOut of 85 consecutive, eligible patients, 12 were excluded (5 subglottic stenosis, 6 laryngomalacia, and one tracheomalacia). Of the 73 included patients, 42 were male and 31 females. The median age at IL was 29 months (range 1–132, interquartile range of 38 months). All IL procedures in this study utilized hyaluronic acid derivatives. From this series, 13 patients experienced post-operative complications. The complications encountered were respiratory distress (N = 5), croup-like cough (N = 6), and stridor (N = 6). These complications were either self-limiting (N=9), managed by systemic or inhaled steroids (N = 4), or admitted to hospital for monitoring (N=3). One case (augmented with dextranomer and hyaluronic acid) required intubation, repeat endoscopy, and drainage of seroma. ConclusionIL was followed by respiratory morbidity in nearly two in ten of this series of consecutive patients. All the morbidities occurred in association with one injection product. Parents should be counselled appropriately about potential morbidities associated with this procedure.

Injection augmentation and endoscopic repair of type 1 laryngeal clefts: development of a management algorithm

ObjectivesTo describe indications for injection augmentation (IA), endoscopic repair (ER) and conservative methods for the management of type 1 laryngeal cleft (LC1) and propose a management algorithm. We also aimed to compare success of IA and ER and determine independent predictors of treatment failure.MethodsRetrospective study of patients diagnosed with LC1 at a Pediatric Otolaryngology referral centre between 2004 and 2016. All had pre-operative instrumental swallowing evaluation (VFSS/FEES), and were managed with a combination of conservative measures, IA and/or ER. We collected demographics, symptoms, comorbidities, VFSS/FEES results, and operative details. The primary outcome was symptom resolution by parental report. The secondary outcome was predictors of treatment failure.Results88 patients were included in the analysis, with mean age 26 ± 25 months. Most presented with choking events (68%) or recurrent pneumonias (48%). In total, there were 55 IA performed and 45 ER. Of the patients who received IA, 19 required subsequent ER. 95% had symptom improvement, 67% had complete resolution. IA had a 56% long-term success rate, whereas that for ER was 85%. Tube feeding at initial evaluation was an independent predictor of treatment failure (HR 11.33 [1.51–84.97], p = 0.018).ConclusionsLC1 can be effectively managed with a combination of IA and ER with favorable results. Failure to respond to IA does not preclude ER, and both have their role in management. Patients who are tube fed have a higher probability of treatment failure. We propose a management algorithm that includes reasoning for conservative approaches, and reduces exposure to general anesthesia.

Postoperative respiratory complications and disposition in patients with type 1 laryngeal clefts undergoing injection or repair – A single institution experience

ObjectiveIdentify incidence and factors associated with respiratory complications after type 1 cleft repair. MethodsRetrospective chart review of patients who underwent cleft repair over a 5-year period performed by a single surgeon. Primary endpoint was respiratory complications (oxygen desaturation <90%). Fisher's exact test was used to identify differences between repair types (endoscopic carbon dioxide laser-assisted repair and injection laryngoplasty). Logistic regression was used to identify predictors of respiratory events. ResultsFifty-five patients were included. Thirty-four (62%) patients underwent endoscopic carbon dioxide laser-assisted repair and 21 (38%) underwent injection laryngoplasty. Average hospital stay for each group was 1.6 days (SD = 3.1) and 0.6 days (SD = 0.9), respectively. Desaturations occurred in three patients (9%) in the laser-assisted repair group and one patient (4%) in the injection group. All occurred within 3 h after surgery and resolved with supplemental oxygen, oral airway placement, and/or mask ventilation. Two affected patients had comorbid diagnosis of asthma (one had poor medication compliance), and one had a history of developmental delay and hypotonia. In the injection group, desaturations occurred in one patient with a history of tracheal stenosis and double aortic arch. No correlation existed between repair type and desaturation (p = 0.57). No variables were significant predictors of events. ConclusionsIn this cohort, respiratory events after type 1 laryngeal cleft repair occurred early in the postoperative period, in children with cardiac and pulmonary comorbidities. This suggests postoperative admission may only be necessary for a select group of patients undergoing type 1 cleft repair. However, further research is needed to determine criteria for same-day discharge.

Long-term swallowing outcomes following type 1 laryngeal cleft injection

IntroductionInterarytenoid injection augmentation (IIA) during initial diagnostic endoscopy for aspiration and dysphagia has been described as both a diagnostic and therapeutic technique in the evaluation of type 1 laryngeal cleft (LC-1). IIA is additionally hypothesized to be a temporizing measure that facilitates improvement of swallowing function and potentially obviates the need for future formal endoscopic suture repair of LC-1. However, long-term (>6 month) outcomes of IIA for LC-1 remain largely unknown. The objective of this study was to evaluate the effect of IIA on long-term swallowing outcomes and need for formal endoscopic suture repair in patients with LC-1. MethodsThis is a retrospective cohort study of patients age ≤24 months with pharyngeal phase dysphagia on preoperative videofluoroscopic swallow study (VFSS) who underwent IIA for LC-1 during diagnostic laryngoscopy and bronchoscopy at a single tertiary care academic subspecialty hospital from June 2017 to May 2018. Included patients underwent VFSS within 30 days of IIA and had documented SLP follow up at 6 months or more post-procedure. Exclusion criteria included prior cleft repair, gastrostomy tube dependence, additional procedures at the time of IIA, or lack of documented follow up. A total of 34 patients underwent LC-1 during study period with 24 included in final analyses. The primary outcome measure was improvement in safely swallowed consistency at 6 months or greater following injection. Secondary outcomes included need for formal suture LC-1 repair following IIA and comparison of 30-day and long-term swallowing function. ResultsMedian [range] age at injection was 15.3 [10.3–19.1] months and 50% were female (n = 12). Improvement was noted in 12 (50%) patients within 30 days of IIA, with 11 of 12 demonstrating sustained improvement at long-term follow up (10.3 [9.3–14.0] months). Among all patients, 15 of 24 (63%) demonstrated improvement compared to preoperative baseline. Six of 24 (25%) required formal suture repair of LC-1. ConclusionsIIA is a safe procedure that may result in both immediate and long-term improvement in dysphagia in select patients with LC-1. Additional studies are required to determine impact of IIA on pulmonary complications and hospital utilization and as well as patient- and caregiver-related outcome measures.

Implementing a Pediatric Perioperative Surgical Home Integrated Care Coordination Pathway for Laryngeal Cleft Repair.

The Pediatric Perioperative Surgical Home (PPSH) model is an integrative care model designed to provide better patient care and value by shifting focus from the patient encounter level to the overarching surgical episode of care. So far, no PPSH model has targeted a complex airway disorder. It was hypothesized that the development of a PPSH for laryngeal cleft repair would reduce the high rates of postoperative resource utilization observed in this population. Institutional review board approval was obtained for the purpose of data collection and analysis. A multidisciplinary team of anesthesiologists, surgeons, nursing staff, information technology specialists, and finance administrators was gathered during the PPSH development phase. Standardized perioperative (preoperative, intraoperative, and postoperative) protocols were developed, with a focus on preoperative risk stratification. Patients presenting before surgery with ≥1 predefined medical comorbidity were triaged to the intensive care unit (ICU) postoperatively, while patients without severe systemic disease were triaged to a lower-acuity floor for overnight observation. The success of the PPSH protocol was defined by quality outcome and value measurements. The PPSH initiative included 120 patients, and the pre-PPSH period included 115 patients who underwent laryngeal cleft repair before implementation of the new process. Patients in the pre-PPSH period were reviewed and classified as ICU candidates or lower acuity floor candidates had they presented in the post-PPSH period. Among the 79 patients in the pre-PPSH period who were identified as candidates for the lower-acuity floor transfer, 70 patients (89%) were transferred to the ICU (P < .001). Retrospective analysis concluded that 143 ICU bedded days could have been avoided in the pre-PPSH group by using PPSH risk stratification. Surgery duration (P = .034) and hospital length of stay (P = .015) were found to be slightly longer in the group of pre-PPSH observation unit candidates. Rates of 30-day unplanned readmissions to the hospital were not associated with the new PPSH initiative (P = .093). No patients in either group experienced emergent postoperative intubation or other expected complications. Total hospital costs were not lower for PPSH observation unit patients as compared to pre-PPSH observation unit candidates (difference = 8%; 95% confidence interval, -7% to 23%). A well-defined preoperative screening protocol for patients undergoing laryngeal cleft repair can reduce postoperative ICU utilization without affecting patient safety. Further research is needed to see if these findings are applicable to other complex airway surgeries.

Oral aspiration, type 1 laryngeal cleft, and respiratory tract infections in canadian inuit children.

Canadian Inuit infants suffer the highest rate of lower respiratory tract infections (LRTI's) in the world. The causes of this are incompletely understood. The primary objective of this study was to determine whether there exists an association between respiratory morbidity and oral aspiration in Inuit children. A retrospective chart review was conducted including children from Nunavut who underwent Video Fluoroscopic Swallowing Study between the years of 2001 to 2015. The primary outcome was hospitalization for LRTI. We hypothesized that infants found to have aspiration would experience a higher rate of admissions for LRTI than those with normal swallowing studies. One-hundred and twenty-seven patients were identified, of whom 94 were included. Fifty-six percent of patients had an abnormal swallowing study. Compared with patients with normal swallowing, the incidence rate of LRTI was higher in patients with aspiration (incidence rate ratio [IRR] = 1.51; 95% confidence interval [CI] = 1.23-1.87) and in patients with penetration (IRR = 1.40; 95% CI = 1.11-1.76). Fourteen percent of patients had confirmed laryngeal cleft; patients with confirmed presence of this also had a higher incidence rate of LRTI (IRR = 1.66; 95% CI = 1.32-2.07). The incidence of abnormal swallowing study showed an 11-fold variation across the five regions in Nunavut, with the highest prevalence in west Qikiqtani Region (Baffin Island). We conclude that swallowing dysfunction is not only prevalent amongst Canadian Inuit but clinically significant. This is the first study to demonstrate an association between swallowing dysfunction and respiratory morbidity in this population. Geographic distribution patterns and high rates of laryngeal cleft may point to a potential genetic etiology for what remains at this point, idiopathic swallowing dysfunction.

Flexible Fiberoptic Bronchoscopy Directed Interventions in Neonatal Intensive Care Unit

To describe the utility of flexible fiberoptic bronchoscopy for the diagnosis and management in the neonatal ICU. A retrospective, medical chart review was conducted in neonates who underwent flexible fiberoptic bronchoscopy over a period of 7 years. Besides demographic data and diagnostic findings, the results of medical and/or surgical interventions done by treating neonatologist were recorded. 88 bronchoscopies were performed in 83 neonates, of which 37 were done through endotracheal tube. Indications included persistent need for mechanical ventilation (32), persistent atelectasis (21), and stridor (27). Most common airway anomalies diagnosed included tracheobronchomalacia (20), laryngomalacia (18), subglottic stenosis (7), choanal atresia (4), laryngeal cleft (4), and tracheoesophageal fistula (4). Surgical interventions were undertaken in 17 cases (9 tracheostomies and 2 cases of slide tracheoplasty). Flexible fiberoptic bronchoscopy can be beneficial for the diagnosis and management of neonates with persistent or undiagnosed respiratory problems.

DOZ047.70: Prevalence of abnormal triple endoscopy findings for tracheoesophageal fistula patients in a multidisciplinary aerodigestive clinic

Abstract Introduction Tracheoesophageal fistula (TEF) is a rare congenital defect involving malformations of the esophagus and trachea, which can be life-threatening if left untreated. Children who have undergone TEF repair often present with symptoms such as cough, vomiting, and growth failure. Although the variety of these symptoms implies a necessity for a multidisciplinary approach to care of TEF repair patients, many are still followed by a single discipline such as gastroenterology or pulmonology. The purpose of this study is to describe the experience of Children's Hospital Los Angeles Aerodigestive team in evaluating TEF patients using an interdisciplinary approach. In particular, we aim to explore the findings obtained during triple endoscopy in order to confirm the necessity of care by multiple specialties, ideally in the setting of an Aerodigestive Clinic. Methods Consent was obtained for all children (birth to 18 years) seen in the Children's Hospital Los Angeles (CHLA) Aerodigestive (AERO) Clinic between June 2016 and August 2018. All patients with a diagnosis of TEF were included in the study and data collected included: age, sex, presenting diagnoses and symptoms, and triple endoscopy findings. Results Of the first 109 patients in the AERO Clinic, 18 had TEF. Of these, 7 (39%) were female with a mean age of 3.4 years (SD 3), and 44% were Hispanic. Ten TEF patients underwent triple endoscopy and all had at least one abnormal finding. Six were diagnosed with laryngeal cleft (LC); four type I, one type II, and one was unspecified. Other abnormal findings included: bronchomalacia (7), tracheomalacia (8), esophagitis (4), gastritis (2), and duodenitis (1). Additionally, 7 had an abnormal bronchoalveolar lavage (BAL) finding, with 6 culture positive results. Conclusion TEF patients can present with feeding and respiratory difficulties months to years after their surgical repair. The triple endoscopy findings of TEF patients presented in this study illustrate that symptoms may arise from the gastrointestinal or respiratory tract. Our experience with TEF patients at CHLA indicates that a multidisciplinary approach to evaluation and management is necessary to serve the complex needs of this population.

DOZ047.106: Internal stents and external splints for complex airway obstruction

Abstract Background Life-threatening airway obstruction due to severe tracheobronchial stenosis or tracheobronchomalacia not amenable to tracheobronchopexy or resection is still a challenge, and warrants aggressive innovative strategies. In this study, our experience with placement of balloon-expandable stents and/or external bioabsorbable splints in children with severe tracheobronchial obstruction was reviewed. Methods All patients with symptomatic severe airway obstruction who underwent interaluminal stent and/or external splint placement (1997–2019) were retrospectively reviewed. The data collected included age, type of obstruction (stenosis or malacia), associated malformations, technical and clinical success, complications, and outcomes. Airway stents were placed under fluoroscopic guidance. Bioabsorbable splints (RapidSorb, Synthes CMF) were custom molded and then secured externally on the collapsing areas under simultaneous bronchoscopic and direct visualization. Results Seventeen patients underwent 14 airway stents (trachea = 5, bronchi = 9) and/or 11 external bioabsorbable splints (trachea = 5, bronchi = 6) at a median age of 5 months (IQR 3–9 months). Fourteen stents were placed in 8 patients, 10 external splints in 8 patients; one patient had two stents and one splint. Indications for stenting were stenotic airways in 11 patients (postoperative = 7, congenital = 4) and severe distal airway malacia in 3. All the external bioabsorbable splints were placed in patients with severe airway malacia secondary to lack of cartilaginous support and/or extrinsic compression. During follow-up 3/9 stented patients and 3/9 splinted patients did not experience any significant adverse events. Six of nine stented patients experienced serious adverse events: significant in-stent stenosis (n = 3), stent migration, and obstructive granulation tissue (n = 1), erosion through airway wall (n = 1), and death (n = 2). Of the nine splinted patients, one bronchial splint fractured, requiring replacement, and five patients required tracheostomies for continued respiratory failure from unilateral pulmonary hypoplasia and residual distal tracheal stenosis (n = 1), severe tracheomalacia (n = 2), subglottic stenosis (n = 1), and laryngeal cleft (n = 1). One patient died a week after surgery. Conclusion Airway internal stenting and external bioabsorbable splinting are effective therapeutic strategies for selected patients with complex airway abnormalities. Bioabsorbable splints are effective in maintaining airway patency, and being absorbable allow for age-proportional growth of the airways. Airway stents can be associated with significant adverse events and therefore should be reserved for patients who have failed other therapeutical strategies.

A Very Rare Complication of Hyaluronic Acid Injection for Medialization Laryngoplasty: A Case With Laryngeal Abscess

Hyaluronic acid injection for medialization laryngoplasty is a safe procedure performed on patients with glottic incompetence. Laryngeal abscess formation as a complication of injection laryngoplasty is a very rare complication, and, as we know from the literature, there has been only one case of laryngeal abscess after injection laryngoplasty in a patient with a type-I laryngeal cleft. We document for the first time a laryngeal abscess resulting from hyaluronic acid injection laryngoplasty for unilateral vocal fold paralysis. Prompt evaluation of the patient was necessary. Our patient was treated with antibiotics and corticosteroids without a need for intubation. One year after injection, the patient's Voice Handicap Index-10 score was still good and within the range of normal values.

Innovative management of severe tracheobronchomalacia using anterior and posterior tracheobronchopexy.

Combined anterior and posterior tracheobronchopexy is a novel surgical approach for the management of severe tracheobronchomalacia (TBM). We present our institutional experience with this procedure. Our objective was to determine the utility and safety of anterior and posterior tracheopexy in the treatment of severe TBM. Retrospective chart review. All patients who underwent anterior and posterior tracheopexy from January 2013 to July 2017 were retrospectively reviewed. Charts were reviewed for indications, preoperative work-up, tracheobronchomalacia classification and severity, procedure, associated syndromes, synchronous upper aerodigestive tract lesions, and aberrant thoracic vessels. Main outcomes measured included improvement in respiratory symptoms, successful extubation and/or decannulation, vocal fold immobility, and new tracheotomy placement. Twenty-five patients underwent anterior and posterior tracheopexy at a mean age of 15.8 months (range, 2-209 months; mean, 31 months if 2 outliers of 206 and 209 months included). Mean length of follow-up was 26.8 months (range, 13-52 months). Indications for surgery included apneic events, ventilator dependence, need for positive pressure ventilation, tracheotomy dependence secondary to TBM, recurrent pneumonia, and exercise intolerance. Many patients had other underlying syndromes and synchronous upper aerodigestive tract lesions (8 VACTERL, 2 CHARGE, 1 trisomy 21, 1 Feingold syndrome, 17 esophageal atresia/tracheoesophageal fistula, 20 cardiac/great vessel anomalies, 1 subglottic stenosis, 1 laryngomalacia, 7 laryngeal cleft). At preoperative bronchoscopy, 21 of 25 patients had >90% collapse of at least one segment of their trachea, and the remaining four had 70% to 90% collapse. Following anterior and posterior tracheopexy, one patient developed new bilateral vocal-fold immobility; one patient with a preoperative left cord paralysis had a new right vocal-fold immobility. Postoperatively, most patients had significant improvement in their respiratory symptoms (21 of 25, 84%) at most recent follow-up. Three patients with preexisting tracheotomy were decannulated; two patients still had a tracheotomy at last follow-up. Two patients required new tracheotomy for bilateral vocal-fold immobility. Combined anterior and posterior tracheopexy is a promising new technique for the surgical management of severe TBM. Further experience and longer follow-up are needed to validate this contemporary approach and to minimize the risk of recurrent laryngeal nerve injury. 4 Laryngoscope, 130:E65-E74, 2020.