Validation of an outcomes instrument for tonsil and adenoid disease

The Impact of Adenotonsillectomy on the Quality of Life of Children with Obstructive Sleep Apnea

Introduction  In children, obstructive sleep apnea (OSA) is a sleep-related breathing disorder that is caused by adenotonsillar hypertrophy and is characterized by upper airway obstruction disturbing sleep. Objective  We conducted this study to evaluate health-related quality of life (QoL) in children with OSA before and after adenotonsillectomy. Methods  A descriptive, observational study was conducted among 43 children in the 4-to-12 years old age group who had symptoms of OSA due to adenotonsillar hypertrophy and who underwent adenotonsillectomy at a tertiary care center during the period from February 2020 to February 2021. The QoL was assessed using the OSA-18 questionnaire preoperatively and at 2 and 6 months postoperatively. Results  Among the study population, males (72)%) were more affected with OSA, with a male-to-female ratio of 2.6:1. Based on the OSA-18 questionnaire assessment, the most severe and frequently observed symptoms were in the domains of sleep disturbance and physical symptoms, in which the mean score was 77 preoperatively. After adenotonsillectomy, the mean OSA-18 score decreased to 28.605 and 22.465 at 2 and 6 months, respectively. At 2 months postsurgery, more significant improvement was noticed in sleep disturbances, physical symptoms, and parent's concern while at 6 months postsurgery, all domains showed equal improvement. Therefore, following adenotonsillectomy, the QoL improved significantly. Conclusion  Obstructive sleep apnea can adversely affect sleep quality as well as neurocognitive and cardiovascular functions. Adenotonsillectomy resulted in significant improvement in the QoL.

Treatment of recurrent acute tonsillitis-a systematic review and clinical practice recommendations

Background

There is an ongoing debate on the indications for tonsil surgery in both children and adults with recurrent acute tonsillitis. The aim is to provide practical recommendations for diagnostics and treatment for recurrent acute tonsillitis including evidence-based decision making for tonsillectomy.

Methods

A systematic literature search in PubMed, Embase, Web of Science, and ScienceDirect from 2014 until April 2023 resulted in 68 articles. These were the basis for the review and a comprehensive series of consensus statements on the most important diagnostics and indications for both non-surgical and surgical therapy. A consensus paper was circulated among the authors and members of the International Head and Neck Scientific Group until a final agreement was reached for all recommendations.

Results

The differentiation between sore throat and tonsillitis patient episodes is mostly not feasible and hence is not relevant for diagnostic decision making. Diagnostics of a tonsillitis/sore throat episode should always include a classification with a scoring system (Centor, McIssac, FeverPAIN score) to estimate the probability of a bacterial tonsillitis, mainly due to group A streptococcus (GAS). In ambiguous cases, a point-of-care test GAS swab test is helpful. Consecutive counting of the tonsillitis/sore throat episodes is important. In addition, a specific quality of life score (Tonsillectomy Outcome Inventory 14 or Tonsil and Adenoid Health Status Instrument) should be used for each episode. Conservative treatment includes a combination of paracetamol and/or non-steroidal anti-inflammatory drugs. In case of high probability of bacterial tonsillitis, and only in such cases, especially in patients at risk, standard antibiotic treatment is initiated directly or by delayed prescription. Tonsillectomy is indicated and is highly effective if the patient has had ≥7 adequately treated episodes in the preceding year, ≥5 such episodes in each of the preceding 2 years, or ≥3 such episodes in each of the preceding 3 years. An essential part of surgery is standardized pain management because severe postoperative pain can be expected in most patients.

Conclusion

It is necessary to follow a stringent treatment algorithm for an optimal and evidence-based treatment for patients with recurrent acute tonsillitis. This will help decrease worldwide treatment variability, antibiotic overuse, and avoid ineffective tonsillectomy.

Tonsillectomy versus tonsillotomy for recurrent acute tonsillitis in children and adults (TOTO): study protocol for a randomized non-inferiority trial

BACKGROUND

Tonsillectomy is one of the most frequently performed surgeries in children and young adults worldwide. For decades, tonsillectomy was the surgical treatment of choice for recurrent acute tonsillitis. Tonsillotomy was used in some countries as an alternative to tonsillectomy only for the treatment of obstructive sleep apnea in young children. In recent years, an increase of tonsillotomy also to treat recurrent acute tonsillitis can be observed. Therefore, the German Institute for Quality and Efficiency in Health Care (IQWiG) was commissioned by the Federal Joint Committee (G-BA) to investigate whether tonsillotomy offers advantages compared to tonsillectomy. The meta-analysis of the IQWiG including studies until 2016 revealed that the long-term benefits and harms of tonsillotomy compared to tonsillectomy are unclear. Consequently, the G-BA performed a European call for a clinical trial. A consortium of the German Professional Association of ENT-surgeons (BVHNO), the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery (DGHNO-KHC), and the Jena University Hospital were finally selected to perform the TOTO study.

METHODS

TOTO is a multicenter, 1:1 two-arm, randomized non-blinded non-inferiority trial. Four hundred fifty-four patients ≥ 3 years of age will be randomly allocated to undergo either tonsillotomy or tonsillectomy as surgical treatment of recurrent acute tonsillitis. All participants will be followed up for a total of 24 months. The primary outcome is the number of sore throat days experienced over the 24-month follow-up.

DISCUSSION

TOTO is designed to evaluate the effectiveness and efficiency of tonsillectomy versus tonsillectomy for the management of patients with recurrent acute tonsillitis. Tonsil disease and surgery have a major impact on preschool and school children as well as on economically active young adults, with individual and societal costs through loss of school visits, earnings, and productivity. If tonsillotomy is at least as effective as tonsillectomy but with reduced morbidity, this would reduce costs to the healthcare system and society.

TRIAL REGISTRATION

German Clinical Trials Register DRKS00020823 . Registered on 04 September 2020.

Monopolar electrocautery tip vs plasma ablation in tonsillotomy: A randomized case-control study comparing outcomes in pediatric population

BACKGROUND

The objective of this study was to compare the low-priced monopolar electrocautery to the high-priced, worldwide used, plasma ablation in tonsillotomy among children aged between three and twelve years, suffering from obstructive breathing disorders (OBD), with respect to post-operative pain, bleeding and related morbidities.

METHODS

A randomized case-control study was conducted in the Eye and Ear Hospital International- Lebanon. 103 children aged between three and twelve years suffering from OBD secondary to tonsillar hypertrophy were randomly assigned into two groups. Post-operative pain was evaluated using age-adequate validated scales: "FLACC-R" (Face, Legs, Activity, Cry, Consolability-Revised) for children aged less than five years, and "Wong Baker faces" for older children. Additional post-operative outcomes were evaluated using Pain-PROM (Patient reported Pain-Related Outcome Measures) and TAHSI (Tonsil and Adenoid Health Status Instrument) scales.

RESULTS

Significantly, higher rates of patients who underwent tonsillotomy via plasma ablation technique used analgesics and had severe pain compared to the monopolar electrocautery group. A longer operative duration was significantly associated with higher pain scores, and the plasma ablation technique yielded significantly higher operative mean durations. 10 days post-operatively, a significantly higher percentage of children reported an overall high pain severity and more than expected overall pain when using the plasma ablation technique compared to the monopolar electrocautery one. Overall bleeding rates were similar. No difference was reported one month post-operatively.

CONCLUSION

When compared to plasma ablation, monopolar electrocautery, can provide the same efficiency in relieving OBD in healthy children, with equal overall bleeding rates, but significantly lower cost, operating time, pain scores and need for analgesics.

Readability analysis of pediatric otolaryngology patient-reported outcome measures

OBJECTIVE

(s): Patient-reported outcome measures (PROMs) are tools that allow patients to directly share information about their health with their healthcare provider. Health literacy experts recommend that health information, such as PROMs, be written at a 6th grade level to ensure patients can read and comprehend it. As the readability of PROMs used in pediatric otolaryngology has yet to be studied, our goal was to analyze the readability of these PROMs and assess their compliance with readability recommendations.

METHODS

The Gunning Fog, the Simple Measure of Gobbledygook (SMOG), and the FORCAST readability formulas were used to determine the readability of disease-specific PROMs for pediatric otolaryngology.

RESULTS

Fourteen PROMs were reviewed in the study. Most were intended for caregiver completion (n = 13, 92.9%). Ten PROMs when measured by Gunning Fog (71.4%), 2 PROMs when measured by SMOG (14.3%), and 0 PROMs when measured by FORCAST (0.0%) were at or below the 6th grade reading level.

CONCLUSION

Most PROMs available for use in pediatric otolaryngology are above the recommended 6th grade reading level when measured by FORCAST, the most appropriate metric for assessing questionnaires. The high reading grade level needed to complete these PROMs can contribute to health disparities among underserved and vulnerable populations, such as children. Pediatric otolaryngology PROMs developed in the future should take readability into account in order to ensure equity in the delivery of care.

Validation and adaptation of the Arabic version of the Tonsil and Adenoid Health Status Instrument

OBJECTIVES

Validation and cross-cultural adaptation of the Tonsil and Adenoid Health Status study tool, in Arabic while studying its psychometric properties.

STUDY DESIGN

prospective -validation study.

SETTINGS

Multiple tertiary centers.

PATIENTS/AND OTHER PARTICIPANTS

63 consecutive patients who underwent tonsillectomy or adenotonsillectomy operation (pre-operative and 6 months post-operative) and 65 asymptomatic controls.

INTERVENTION/METHODS

FOLLOWING: Guidelines for the cross-cultural adaptation process, to translate the original English language version into an Arabic language one.

MAIN OUTCOME MEASURES

We assessed the psychometric properties of the Arabic version of the TAHSI (A-TAHSI) its feasibility, reproducibility, internal consistency, reliability, discriminatory validity and responsiveness to change.

RESULTS

The Mann-Whitney test showed a statistically significant difference for the mean score between the patients and the control group denoting good clinical validity. The Cronbach's coefficient value for the A- TAHSI for 63 cases was 0.983, demonstrating good internal consistency. The Wilcoxon signed-rank test showed a marked improvement in the patients' scores 6 months post-operatively. Spearman's rank and Pearson's correlations were used to correlate the level of resemblance of the mean score of the A-TAHSI, which showed statistically significant results.

CONCLUSIONS

The A-TAHSI is a valid instrument for evaluating the subjective effect of tonsillectomy on the health and quality of life and hence is recommended to be used in tonsillectomy research and daily practice.

LEVEL OF EVIDENCE

3b.

Comparison of two specific quality of life questionnaires in a paediatric population with adenotonsillar disease

INTRODUCTION AND OBJECTIVE

T-14 and TAHSI are validated and reliable specific questionnaires which measure the quality of life in paediatric patients with adenotonsillar disease. The present study aims to compare the adapted and validated versions in Spanish of these two questionnaires (T-14-s and s-TAHSI) in order to assess the preferential use of either of them in our environment.

MATERIAL AND METHODS

A multicentre prospective cross-sectional study was carried out between November 2015 and April 2016, to determine the possible correlation between these two instruments. Subjects aged from 2 to 16 years with indication for adenotonsillar surgery and healthy controls, were consecutively included. Parents or caregivers of these children completed T-14-s and s-TAHSI questionnaires initially, after 2-6 weeks and at 6 months after surgery. T-14-s and s-TAHSI scores of the entire sample were compared globally, patient and control subgroups were compared separately and finally, compared in the group of patients at 6 months from surgery, using Pearson correlation coefficient. The proportion of variability shared between both tests was calculated.

RESULTS

A hundred subjects (50 cases and 50 controls) were studied. The overall correlation presented by both questionnaires was very high (0.97) with a significance level of p < .01. The proportion of shared variability was 94%, very high. The results were maintained when comparing the questionnaires in the subpopulations of cases and controls, as well as the postoperative questionnaires.

CONCLUSION

Quality of life questionnaires for paediatric patients with adenotonsillar pathology, T-14-s and s-TAHSI, showed high correlation and allows the equivalent use of both in our environment.

Structured literature review of patient-reported outcome (PRO) instruments in adult tonsillectomy or tonsillotomy

BACKGROUND

Instruments that measure the patient-reported outcome and quality of life are essential to assess the treatment success of any medical intervention. This review represents valid and reliable outcome assessment instruments for tonsillectomy (TE) and tonsillotomy (TO) in adult patients as TE/TO still belong to one of the most common performed surgical procedures.

METHODS

A systematic review of the literature in the MEDLINE, PubMed, Web of Science and Cochrane Library was conducted. Studies describing reliable and valid patient-reported outcome measures (PROM) in adults with regard to the perioperative as well as postoperative follow-up after TE/TO were examined. Thus, studies without PROMs or PROMs only relating to children as well as studies in non-English/non-German language or without any detailed information were excluded.

RESULTS

Four thousand four hundred forty studies were identified. Thirteen reliable and valid patient-reported outcome assessment instruments presenting the perioperative and postoperative outcome were analysed. Four generic questionnaires are included that are used to measure the outcome after TE/TO in adults. Four disease-specific questionnaires relating to obstructive sleep apnea (OSA) and sleep disordered breathing (SDB) as well as two TE/TO specific questionnaires are validated for adults. With regard to the perioperative outcome including parameters like pain, nausea, vomiting, satisfaction three assessment instruments are analysed.

CONCLUSION

This review describes the currently available, reliable and valid generic and disease-specific instruments assessing the perioperative as well as postoperative outcome to evaluate the treatment success after TE/TO in adult patients. Therefore, this study improves the selection of the appropriate patient-reported outcome assessment instrument to assess the quality of life in adults undergoing TE/TO.

Pediatric tonsillectomy quality of life assessment instruments: a scoping review protocol

REVIEW QUESTION/OBJECTIVE

The objective of this scoping review is to investigate quality of life (QoL) questionnaires available to pediatric patients following tonsillectomies with or without adenoidectomies for chronic infection or sleep-disordered breathing (SDB). The scoping review will aim to map the components of each QoL questionnaire assessed including frequency of use, age parameters, respondent, domains assessed, format and psychometric properties. Questionnaire format will be summarized into respondent and administrator burden by identifying the number of questions present, scale utilized and time to completion. The scoping review will report on whether psychometric analysis in terms of test reliability and validity was assessed in the included papers as well as the results of those assessments.Specifically, the review question is: what QoL questionnaires are available for pediatric patients following tonsillectomies with or without adenoidectomies for chronic infections or SDB?

Microdebrider-assisted intracapsular tonsillectomy in adults with chronic or recurrent tonsillitis

OBJECTIVES/HYPOTHESIS

We compared the effectiveness and morbidity of microdebrider-assisted total intracapsular tonsillectomy (ICTE) with conventional extracapsular tonsillectomy (ECTE) in adults with chronic or recurrent tonsillitis.

STUDY DESIGN

Prospective randomized surgical trial.

METHODS

Adult patients with recurrent or chronic tonsillitis who underwent tonsillectomy between July 2010 and July 2012 in the Department of Otorhinolaryngology-Head and Neck Surgery, Medical University Innsbruck, Innsbruck, Austria, were consecutively included. Patients were randomized to receive either ICTE or ECTE. Patients and examiners were blinded to the surgical procedure. Effectiveness was assessed with the Tonsil and Adenoid Health Status Instrument (TAHSI). Various parameters of perioperative morbidity and the occurrence of tonsillar remnants were recorded.

RESULTS

In the 104 randomized patients, the average TAHSI score was 34.6 ± 11.7 before and 2.2 ± 5.7 after 6 months following tonsillectomy (P < 0.001). TAHSI scores improved equally in patients receiving conventional ECTE (33.6 points; 95% confidence interval (CI), 29.5 to 37.6) and in patients with ICTE (31.8 points; 95% CI, 27.7 to 35.9; between groups P = 0.6). Posttonsillectomy hemorrhage was more frequent following conventional ECTE (P = 0.03). Following ECTE, patients required more pain medication then following ICTE (P < 0.05). Tonsillar remnants were significantly more frequent after ICTE (P < 0,001). However, presence of tonsillar remnants had no influence on postoperative THASI scores (P > 0.5).

CONCLUSION

Tonsillectomy reduced symptoms of chronic or recurrent tonsillitis in adults with remarkable effectiveness. Microdebrider-assisted ICTE reduced symptoms as effectively as conventional ECTE. ICTE was associated with lower morbidity, but residual tonsils occurred in almost half of patients, costs were higher, and the intracapsular approach was more intricate and time-consuming.

LEVEL OF EVIDENCE

1b.

Evaluation of a German version of the tonsil and adenoid health status instrument

Background

To create and validate a German version of the Tonsil and Adenoid Health Status Instrument (TAHSI) for evaluation of tonsillectomy outcome in adult patients with chronic or recurrent tonsillitis.

Subjects and methods

46 healthy volunteers were assessed twice in a 6 week interval with the TAHSI questionnaire. Their results were compared with 45 patients suffering from chronic tonsillitis before tonsillectomy and 6 months following surgery. For internal consistency, Cronbach’s alpha was calculated; to identify normal score values, the optimum cutoff between healthy and diseased individuals was identified with receiver operating characteristic analysis; and responsiveness was assessed using Guyatt’s Responsiveness Index (GRI).

Results

Cronbach’s alpha for all questions was 0.92. Test- retest intraclass correlation coefficient was 0.89 (95% confidence interval 0.80-0.94 p < 0.001). Mean score for the healthy individuals was 7.0 (95% confidence interval 4.2-9.7). The optimum cut off score between healthy and diseased was 20 with a sensitivity of 80% and a specificity of 90% to differentiate controls from tonsillectomy patients.

Conclusion

The TAHSI performed well in this validation tests and is considered a favorable instrument to evaluate the effectiveness of tonsillectomy in adults with chronic or recurrent tonsillitis.

Sleep disordered breathing in early childhood: quality of life for children and families

OBJECTIVES

To characterize health-related quality of life (QOL) in preschool children with sleep disordered breathing (SDB) and their families compared with nonsnoring control patients in the community. It was hypothesized that children with SDB and their families would have poorer QOL than control children, that a relationship would be found between SDB severity and QOL, and that even children with mild SDB and their families would have reduced QOL.

PARTICIPANTS AND METHODS

A clinical sample of preschool children (3-5 y) with SDB diagnosed by gold standard polysomnography (primary snoring, PS = 56, mild obstructive sleep apnea, OSA = 35, moderate/severe OSA = 24) and control children recruited from the community (n = 38) were studied. Parents completed health-related QOL and parenting stress questionnaires.

RESULTS

Children and families in the PS and mild OSA groups had consistently poorer QOL than control children (both P < 0.05-0.001), based on parent ratings, and parents of children with PS had elevated stress ratings relative to control children (P < 0.05-0.001). The moderate/severe OSA group differed from the control group on select measures of parent and family QOL (worry, P < 0.001 and total family impact, P < 0.05).

CONCLUSIONS

Our findings demonstrate that sleep disordered breathing is associated with reduced quality of life in preschool children and their families. These results support previous quality of life findings in older children and in samples with broader age ranges. Furthermore, clinically referred preschool children with mild forms of sleep disordered breathing may be at greatest risk.

[Development and validation of the Tonsillectomy Outcome Inventory 14]

BACKGROUND

Until now, no validated instrument to measure disease-specific, health-related quality of life (HR-QOL) in adults with chronic tonsillitis (CTO) exists.

MATERIAL AND METHODS

After an item reduction of the alpha-version of the Tonsillectomy Outcome Inventory (TOI), the TOI-14 resulted. In addition to the total score, it includes the subscales throat problems, overall health, resources, and social-psychological restrictions. In phase 2, the TOI-14 was prospectively validated on 108 adults with CTO, who had undergone a tonsillectomy.

RESULTS

The TOI-14 had, on average, good reliability. It included all important aspects of the HR-QOL. Patients with CTO can be distinguished with high sensitivity from healthy subjects. All scores showed moderate to good correlation with the subjective limitation in quality of life. The sensitivity of the questionnaire demonstrated major effects postoperatively.

CONCLUSION

The TOI-14 constitutes the first worldwide-validated, disease-specific instrument to measure HR-QOL in adults with CTO. Due to its ease of use, it can be utilized both in the outcome research and in clinical routine.

Improvement in quality of life by adenotonsillectomy in children with adenotonsillar disease

OBJECTIVES

To evaluate the effect of adenotonsillectomy on quality of life of children with adenotonsillar disease and to evaluate the basal differences and post-surgical changes of life quality in children with different disease severity.

STUDY DESIGN

  Prospective, case - controlled study.

SETTING

Tertiary referral center.

PARTICIPANTS AND MAIN OUTCOME MEASURES

Preoperative and postoperative quality of life of 40 children with adenotonsillar disease were determined by pedsQL™, and disease severity was assessed in terms of a score obtained by tonsil and adenoid health status instrument (TAHSI). These children comprised the study group. Median of scores of study group was 31. Twenty-one children with a score less than 31 comprised the study subgroup I, while 19 children with a score bigger than 31 comprised the study subgroup II. Thirty normal children comprised the control group. Comparisons of data obtained from affected and healthy children and their parents were made.

RESULTS

The mean preoperative physical, emotional, social, school and total quality of life scores of the study group were 64.81, 49.62, 76.37, 66.62 and 64.41; postoperatively 83.67, 75.75, 85.75, 87.25, 83.18; and control group were 82.21, 77.50, 92.50, 90.50, 85.40, respectively. There was highly statistically significant difference between all preoperative and postoperative scores of the study group. There was highly statistically significant difference between all preoperative scores of the study and control group. There was no statistically significant difference in preoperative and postoperative scores between the study subgroups. The improvement after surgery was not statistically significant between mild and severe group except for emotional scale.

CONCLUSION

Children with adenotonsillar disease showed significant improvements in disease-specific and global quality of life after adenotonsillectomy as measured by TAHSI and PedsQL. Preoperative and postoperative life quality does not differ according to severity of the disease. The improvement provided by adenotonsillectomy in the children with mild disease is statistically not different from the severely affected children in overall life quality.

The 14-item Paediatric Throat Disorders Outcome Test: a valid, sensitive, reliable, parent-reported outcome measure for paediatric throat disorders

Objectives:

We modified and abbreviated a pre-existing research questionnaire, the Tonsil and Adenoid Health Status Instrument, to make it suitable for rapid completion as a disease-specific, health-related quality of life research tool for children with tonsil and adenoid disease in the UK. We determined the main psychometric properties of the resulting 14-item Paediatric Throat Disorders Outcome Test.

Design, setting and participants:

Pre- and post-operative questionnaires were completed by the parents of children with throat disorders referred to two large hospitals. We included children with recurrent tonsillitis and with obstructive sleep apnoea. A separate cohort of healthy children of comparable age range was also studied.

Main outcome measures:

The test's internal consistency and responsiveness were analysed and its construct validity documented via known-group differences.

Results:

A total of 126 completed questionnaires were received from the hospital referral group. The children's mean age was 6.5 years (range one to 16). The 40 unaffected children were well matched in age to the study population (mean 6.1 years, range two to 15). Cronbach's α coefficient for the pre-operative assessment total score was 0.84. The test–retest reliability coefficient for the total score was 0.98, indicating very high reproducibility. The 14-item Paediatric Throat Disorders Outcome Test discriminated well between children known to suffer with throat problems and a group of healthy controls (p < 0.0001; t = 24.016). Six months after surgical intervention, parentally reported questionnaire scores had improved (i.e. were lower) (p < 0.0001; t = 7.01). The standard effect size (i.e. change in mean divided by baseline standard deviation) for children for whom post-operative questionnaires were completed was 1.53; this is very large.

Conclusions:

The 14-item Paediatric Throat Disorders Outcome Test is an appropriate, disease-specific, parent-reported outcome measure for children with throat disorders, for which we have demonstrated internal consistency, reliability, responsiveness to change and two forms of construct validity.

Health-related quality of life measurement in children and adolescents: a systematic review of generic and disease-specific instruments

OBJECTIVE

To identify currently available generic and disease-specific health-related quality of life (HRQOL) instruments for children and adolescents up to 19 years old, to describe their content, and to review their psychometric properties.

STUDY DESIGN

Previous reviews on the subject and a new literature review from 2001 to December 2006 (MEDLINE, the ISI Science Citation Index, HealthSTAR and PsycLit) were used to identify measures of HRQOL for children and adolescents. The characteristics (country of origin, age range, type of respondent, number of dimensions and items, name of the dimensions and condition) and psychometric properties (reliability, validity, and sensitivity to change) of the instruments were assessed following international guidelines published by the Scientific Committee of the Medical Outcomes Trust.

RESULTS

In total, 30 generic and 64 disease-specific instruments were identified, 51 of which were published between 2001 and 2005. Many generic measures cover a core set of basic concepts related to physical, mental and social health, although the number and name of dimensions varies substantially. The lower age limit for self-reported instruments was 5-6 years old. Generic measures developed recently focused on both child self-report and parent-proxy report, although 26% of the disease-specific questionnaires were exclusively addressed to proxy-respondents. Most questionnaires had tested internal consistency (67%) and to a lesser extent test-retest stability (44.7%). Most questionnaires reported construct validity, but few instruments analyzed criterion validity (n = 5), structural validity (n = 15) or sensitivity to change (n = 14).

CONCLUSIONS

The development of HRQOL instruments for children and adolescents has continued apace in recent years, particularly with regard to disease-specific questionnaires. Many of the instruments meet accepted standards for psychometric properties, although instrument developers should include children from the beginning of the development process and need to pay particular attention to testing sensitivity to change.

Quality of life in children with sleep-disordered breathing: evaluation by OSA-18

Sleep-disordered breathing (SDB) is prevalent. There is evidence of their effect on quality of life.

AIM

To assess the quality of life in children with SDB before and after adenoidectomy or adenotonsillectomy.

METHODS

A prospective before and after interventional study, with a component for assessment. A consecutive sample of children referred to adenoidectomy or adenotonsillectomy was recruited from the otolaryngology clinic; guardians answered a specific survey for the evaluation of quality of life in children with SDB, the OSA-18, before and at least 30 days after surgery. Nasofibroscopic and otolaryngological exams and a semi-structured survey on the childs social and clinical profile were done on both appointments.

RESULTS

48 children with a mean age of 5.93 years (SD=2.43) were evaluated. The mean number of schooling years for guardians was 8.29 years (SD=3.14). The most frequent symptoms were: agitated sleep, apnea and snoring. The total mean score of the initial OSA-18 was 82.83 (major impact); following surgery, the total mean score was 34.15. The differences in the total scores and in the domains between the initial OSA-18 and post-surgery scores were all significant (p<0.00).

CONCLUSION

SDB has a relevant impact on quality of life, and patients show dramatic improvements after surgical treatment.

Qualidade de vida em crianças com distúrbios obstrutivos do sono: avaliação pelo OSA-18

Distúrbios obstrutivos do sono (DOS) são prevalentes e existem evidências de afetarem a qualidade de vida das crianças. OBJETIVO: Avaliar a qualidade de vida de crianças com DOS antes e após adenoidectomia ou adenotonsilectomia. MATERIAL E MÉTODOS: Estudo prospectivo de intervenção, tipo antes e após, com componente avaliativo. Foi recrutada uma amostra consecutiva de crianças com indicação de adenoidectomia ou adenotonsilectomia em um ambulatório de otorrinolaringologia e aplicado aos cuidadores um questionário específico para a avaliação da qualidade de vida, o OSA-18, antes da cirurgia e com pelo menos 30 dias após. Foi realizado exame nasofibroscópico, otorrinolaringológico e questionário semi-estruturado sobre o perfil clínico e social da criança, em ambas as consultas. RESULTADOS: Foram avaliadas 48 crianças com média de idade de 5,93 anos (DP=2,43). A média de escolaridade do cuidador foi de 8,29 anos (DP=3,14). Os sintomas mais freqüentes foram: sono agitado, apnéia e ronco. A média de escore total do OSA-18 basal foi de 82,83 (grande impacto) e no pós-operatório, de 34,15. As diferenças nos escores total e dos domínios entre o OSA-18 basal e pós-operatório foram todas significantes (p<0,00). CONCLUSÃO: DOS apresentam impacto relevante na qualidade de vida e melhoram consideravelmente após o tratamento cirúrgico.

Benefit from tonsillectomy in adult patients with chronic tonsillitis

The objective of this study was to determine the benefits of tonsillectomy in adult patients with chronic tonsillitis with special emphasis on the influence of age and gender. Cross-sectional survey analysis of patients at least 1 year after undergoing adult tonsillectomy at a university department. We used the Glasgow Benefit Inventory and a specifically constructed illness inventory (Specific Benefits from Tonsillectomy Inventory). One hundred and nine patients completed the survey. Significant improvements were demonstrated in three out of four GBI scores ['total score' (+16.9), 'general health' (+12.9), 'physical functioning' (+46.6), all P<0.0001] and in all SBTI scores ['symptom change' (+58.3), 'reduced use of resources' (+70.9), 'general benefit' (+52.1), all P<0.0001]. Gender did not play a significant role in benefit evaluation whereby younger patients evaluated the surgery as more beneficial than older patients. Adult patients with chronic tonsillitis definitely benefit significantly from tonsillectomy. Younger adult patients perceived greater surgical benefits than older adult patients. Patient gender did not significantly influence tonsillectomy benefit evaluation.

Quality of Life and Sleep Study Findings After Adenotonsillectomy in Children With Obstructive Sleep Apnea

OBJECTIVES

To assess polysomnogram (PSG) results and global and disease-specific quality of life (QOL) in children with obstructive sleep apnea (OSA), before and after adenotonsillectomy, and to assess the association between PSG findings and QOL.

DESIGN

Prospective observational study. We performed overnight PSG using standardized techniques and assessed disease-specific and global QOL using validated instruments. Follow-up was assessed at 1 year. We compared QOL outcomes between children who underwent adenotonsillectomy and children who did not.

SETTING

A large tertiary care children's hospital.

PATIENTS

Children with sleep-disordered breathing who were suspected of having OSA.

INTERVENTION

Adenotonsillectomy.

MAIN OUTCOME MEASURES

We evaluated PSG parameters, disease-specific QOL, and global QOL.

RESULTS

We enrolled 47 children, 31 of whom met PSG criteria for OSA. Disease-specific and global QOL were not significantly different between children with OSA and children without. Global QOL was significantly worse for children with OSA than healthy children on several subscales: general health perception, behavior, and parental impact-emotional. Children who underwent adenotonsillectomy had significant improvements in QOL scores and PSG parameters (apnea-hypopnea index, P = .004; minimum saturation, P = .004). We found significantly larger QOL changes in children who underwent surgery compared with children without surgery (subscales: infections, P = .01; airway, P = .002; swallowing, P = .02; and behavior, P = .03). No strong association was identified between QOL scores and PSG parameters.

CONCLUSIONS

Children with OSA and sleep-disordered breathing have significantly worse QOL than healthy children. However, the association between PSG findings and QOL was only moderate. Children with OSA treated with adenotonsillectomy demonstrated large improvements in disease-specific and global QOL as well as PSG parameters.

Evaluating health-related quality-of-life studies in paediatric populations: some conceptual, methodological and developmental considerations and recent applications

Although numerous paediatric-based health-related quality-of-life (HR-QOL) instruments are currently in use, there still remain conceptual, methodological and developmental issues to address. This paper provides an up-to-date critical review of the HR-QOL literature in paediatric medicine. Our analysis indicates that there is no consensus on how HR-QOL and overall QOL should be defined and measured in children. It is recommended that future studies focus on operationalising and distinguishing these constructs from each other and from traditional health-status measures. A clear empirical basis for generating instrument items and for prioritising specific domains must be described. Researchers should consider using the data gathered during their first interviews as a springboard from which to test their ideas of HR-QOL and QOL, reformulate concepts and subsequently retest their notions before developing instruments. Related to methodological challenges, consistency and agreement are still used interchangeably when comparing child and parent reports of children's HR-QOL. The Pearson correlation is a measure of co-variation in scores, and not a measure of agreement. We recommend that researchers focus on determining agreement as opposed to consistency. Few, if any, attempts have been made to account for the possibility that a response shift may have occurred in the evaluation of HR-QOL. Most studies have compared HR-QOL scores of children with illness with their healthy peers. As such, there is a dearth of knowledge regarding the normative process of adaptation within the context of illness. It is recommended that researchers focus on gathering data using a relative standard of comparison. We further recommend that researchers interpret HR-QOL data in line with their intended purpose. Regarding developmental consideration, particular attention ought to be paid to developing instruments that consider children's emerging sense of self, cognitive capacity and emotional awareness. Instruments that include items that are age appropriate are more likely to maximise reliability and validity of reports. The results of many HR-QOL instruments are applied in pharmacotherapeutic and pharmacoeconomic assessments. However, there has been relative infrequent application of economically valid HR-QOL tools (utility scales) and the use of HR-QOL scales as outcome measures in paediatric drug trials. As such, few cost-utility analyses have been performed to inform paediatric decision making. In addition, many of the concerns in the development of HR-QOL instruments should also be applied to the utility scales such that they reflect adequately children's preferences for health states.

Effectiveness of adenotonsillectomy in children with mild symptoms of throat infections or adenotonsillar hypertrophy: open, randomised controlled trial

OBJECTIVE

To assess the effectiveness of adenotonsillectomy in children with mild symptoms of throat infections or adenotonsillar hypertrophy.

DESIGN

Open, randomised controlled trial.

SETTING

21 general hospitals and three academic centres in the Netherlands.

PARTICIPANTS

300 children aged 2-8 years requiring adenotonsillectomy.

INTERVENTION

Adenotonsillectomy compared with watchful waiting.

MAIN OUTCOME MEASURES

Episodes of fever, throat infections, upper respiratory tract infections, and health related quality of life.

RESULTS

During the median follow up period of 22 months, children in the adenotonsillectomy group had 2.97 episodes of fever per person year compared with 3.18 in the watchful waiting group (difference -0.21, 95% confidence interval -0.54 to 0.12), 0.56 throat infections per person year compared with 0.77 (-0.21, -0.36 to -0.06), and 5.47 upper respiratory tract infections per person year compared with 6.00 (-0.53, -0.97 to -0.08). No clinically relevant differences were found for health related quality of life. Adenotonsillectomy was more effective in children with a history of three to six throat infections than in those with none to two. 12 children had complications related to surgery.

CONCLUSION

Adenotonsillectomy has no major clinical benefits over watchful waiting in children with mild symptoms of throat infections or adenotonsillar hypertrophy.