UK National Clinical Guidelines in Paediatric Dentistry. Managing anxious children: the use of conscious sedation in paediatric dentistry

Optimising the dose of oral midazolam sedation for dental procedures in children: a prospective, randomised, and controlled study

BACKGROUND

Midazolam sedation poses a significant dilemma in paediatric dentistry, which is to find out the optimal dosing with minimal undesirable adverse events. In this study, we aimed to compare the effect of three doses of oral midazolam (0.5, 0.75, and 1 mg/kg) on the sedative state and cooperative behaviour of children during dental treatment. We further compared completion rates, parent satisfaction, and all adverse events.

DESIGN

Ninety children aged 3-10 years were randomised to three equal groups. Groups A, B, and C received 0.5, 0.75, and 1 mg/kg of oral midazolam, respectively. Levels of sedation, cooperative behaviour, procedures completion rates, parent satisfaction, and adverse events were prospectively recorded.

RESULTS

Sedation scores in B and C were higher (P < 0.001) than in A. Cooperation scores (CS) in B and C were higher (P < 0.001) than in A. Significant increase in completion rates was observed between A and C (P = 0.025). Parent satisfaction was greater in B and C (P < 0.001) compared to A. Adverse events were higher in C (P < 0.05) than in A or B.

CONCLUSION

Amount of 0.75 mg/kg oral midazolam appears to be the optimal oral dose in terms of effectiveness, acceptability, and safety for dental treatments in paediatric patients, when administered by an experienced, paediatric anaesthetist.

Sedation for patients with movement disorders

The general features of the movement disorders are outlined and the effects of inhalational sedation with nitrous oxide and oxygen and intravenous sedation, using midazolam, are described.Two case reports of patients with cerebral palsy treated in a community care setting are presented, and the advantages of intravenous and inhalational sedation are explained.

CLINICAL RELEVANCE

Inhalational sedation (IS) with nitrous oxide and intravenous sedation (IVS) with midazolam can be useful aids to reduce unwanted movements in patients with movement disorders during dental treatment.

Systematic review of the effect of dental staff behaviour on child dental patient anxiety and behaviour

OBJECTIVES

To review the literature, of the past 30 years, on the effects of dental staff behaviour on the anxiety and behaviour of child dental patients; especially to determine staff behaviours that reduce anxiety and encourage cooperation of children.

METHODS

A systematic literature review was conducted using PubMed, Web of Science, The Cochrane Library, PsycINFO, Embase and CINAHL.

RESULTS

Initial search returned 31 publications of which 11 fulfilled the criteria for review. Among seven studies that measured anxiety, four used validated measures. Five observational studies coded behaviour using Weinstein et al.'s (1982) coding scheme [1]. An empathic working style and appropriate level of physical contact accompanied by verbal reassurance was found to reduce fear-related behaviours in children. Findings regarding positive reinforcement and dentists' experience increasing cooperative behaviour were inconsistent.

CONCLUSIONS

Measures for anxiety and behaviour varied across studies. Relationships between certain dental staff behaviours and child anxiety/behaviour were reported. However, limited work was identified and research using improved sampling, measurement and statistical approach is required.

PRACTICE IMPLICATIONS

Understanding what routine clinical behaviour of dental staff affects children's dental anxiety/behaviour will inform investigators of how children comply and help staff be aware the significance of their daily behaviour on treatment success.

Survey on sedation in paediatric dentistry: a global perspective

BACKGROUND

Paediatric dentists receive training in sedation during their advanced education training, but evidence suggests that this training varies widely.

AIM

The purpose of this study was to survey members of the International Association of Paediatric Dentistry (IAPD) and the European Academy of Paediatric Dentistry (EAPD) on their opinion on pharmacological and other behavioural management techniques and their training related to provision of oral health care of paediatric patients in the dental setting.

METHODS

A request was made for access to the IAPD and EAPD membership email addresses. The responses were recorded anonymously and data uploaded into spss (version 9) and analysed using descriptive analysis and chi-square with and without tabulation processes.

RESULTS

A total of 311 respondents of 1973 targeted individuals answered the survey. The response rate was 16%. The majority of the respondents came from the continent of Europe, Asia, and the Americas. The most frequent type of sedation was general anaesthesia (52% of the respondents), followed by nitrous oxide (46%) and then oral sedation (44%). At least 91% of the respondents indicated that they were interested in the development of continuing education on the topic of sedation.

CONCLUSIONS

Paediatric dentists around the world use relatively few behaviour management techniques, including pharmacological management. There is a definite interest in continuing education in the area of sedation.

A comparison of inhalation sedation agents in the management of children receiving dental treatment: a randomized, controlled, cross-over pilot trial

AIMS

First, to compare the relative effectiveness of inhalation sedation using (A) nitrous oxide and oxygen with (B) nitrous oxide, sevoflurane, and oxygen in the management of children receiving dental extractions. Secondly, to determine patient and guardian preference between the two sedation techniques.

MATERIALS AND METHODS

A randomized, controlled, double-blinded, cross-over, pilot clinical trial was undertaken. Thirty patients aged 6-15 years, ASA category I or II, who required two identical dental extractions with inhalation sedation were recruited. At the first session, patients were randomly allocated to receiving treatment with sedation Method A or B. At the second session, the alternative sedation protocol was employed.

RESULTS

Overall, 80% of patients successfully completed treatment at both appointments. There was no statistically significant difference between either the success rate of the two methods or in guardian preference between the two modes of sedation. There was a statistically significant difference in patient preference in favour of Method B.

CONCLUSIONS

The results from this pilot study would suggest no increased benefit, in terms of treatment completion, from the additional use of sevoflurane in combination with nitrous oxide and oxygen. There was, however, a small but significant patient preference in favour of nitrous oxide with sevoflurane and oxygen.

Paediatric conscious sedation: views and experience of specialists in paediatric dentistry

OBJECTIVES

The objectives were three-fold: to investigate the level of conscious sedation training received prior to and during specialist training in paediatric dentistry; to establish the use of conscious sedation during and following specialisation; and to determine the attitudes of specialists in paediatric dentistry to conscious sedation.

SUBJECTS AND METHODS

A self-administered postal questionnaire was sent to all specialists in paediatric dentistry registered with the General Dental Council in January 2008. Non-responders were contacted again after a four-week period.

RESULTS

A response rate of 60% was achieved. Of the 122 respondents, 67 (55%) had received sedation training as an undergraduate; 89 (75%) had been trained during specialisation. All respondents performed dental treatment under sedation as a trainee and the majority used nitrous oxide inhalation sedation (NOIS). Over 90% of respondents felt that NOIS should be available to all children, both in appropriate primary care settings and in hospitals. One hundred and twenty-one (99%) respondents thought that all trainees in paediatric dentistry should have sedation training.

CONCLUSIONS

The most popular form of sedation amongst specialists in paediatric dentistry was NOIS. However, some of the respondents felt that children should have access to other forms of sedation in both the primary care and hospital settings. Additional research on other forms of sedation is required to evaluate their effectiveness and safety.

Short communication: dental anxiety levels and outcomes of care: a preliminary report on experiences of a sedation assessment clinic

AIM

This was twofold: (1) to report on the type of paediatric patient referred to the sedation assessment clinic at the Glasgow Dental Hospital and School, and (2) to report on the level of anxiety.

METHODS

This was a two-part study. The first part was a retrospective review of case notes to evaluate referral pathways to and from the sedation assessment clinic with regard to a range of variables. The second part was a prospective clinical report of dental anxiety.

RESULTS

It was noted that 31 (67.4%) of patients were initially referred by their general dental practitioner, 7 (15.2%) by community dental surgeons and 8 (17.4%) by hospital dental surgeons. At the initial referral, 4 children (9%) showed symptoms of pain. The majority of patients were from lower social economic areas, as determined by DEPCAT score and exhibiting moderate to high anxiety levels. The children who were referred for general anaesthesia had the highest anxiety scores. Out of a total of 46 patients, five failed to complete treatment within the modality laid out for them at the assessment clinic.

CONCLUSIONS

(1) The patients attending the newly established sedation assessment clinic were mainly high caries risk, socially deprived patients and (2) that the majority of patients were dentally anxious, the most anxious appearing to have been referred for treatment under general anaesthesia.

Depression and anxiety in children at the end of life

A significant component of palliative care is the prompt diagnosis and management of distress, anxiety, and depression. This article reviews the symptoms and treatment of anxiety and depressive disorders in children at the end of life. Distinguishing between symptoms and disorders, the importance of open communication, consideration of the child's understanding of death, diagnostic challenges in chronically ill children, and suicidality are discussed. Because treatment options are available, it is imperative that symptoms are recognized and addressed. Understanding the issues involved in screening and diagnosis and the risks and benefits of available treatments can lead to an informed approach to the management of these disorders in the palliative care setting.

Sedation with 50% nitrous oxide/oxygen for outpatient dental treatment in individuals with intellectual disability

Persons with intellectual disability have difficulty in cooperating with outpatient care, and many are referred for general anaesthesia. Intellectual disability has traditionally been a contraindication for conscious sedation. We evaluated the behavioural impact, effectiveness, and tolerance of sedation in this population using a fixed 50% nitrous oxide/oxygen mixture as a single agent. We used dental treatment as a model of outpatient care; 349 patients (192 males, 157 females; mean age 22y [SD 14]; range 3-81y) were recruited over a 12-month period at seven centres. Sedation was deemed successful if planned dental treatment was completed. Behaviour was scored with the modified Venham scale. Out of 605 sessions, 91.4% were successful. No serious adverse effects occurred. Minor adverse events (such as nausea) occurred in 10.1% of sessions. We conclude that the use of safe and effective conscious sedation may reduce the indications for general anaesthesia.

Pharmaceutical prescribing for children. Part 5. Conscious sedation for dentistry in children

This is the fifth paper in a series on the prescribing of medicines for children by dentists working in primary dental care. It deals with conscious sedation for children.

An audit of single drug (propofol) dental general anaesthesia in children

AIM

The aim of this study was to evaluate and describe the (dis)advantages of intravenous single drug anaesthesia (IVA) using the target- controlled infusion of propofol in order to validate a protocol. The treatments were performed in two secondary dental care clinics in Amsterdam.

METHODS

Retrospective study of the anaesthetic reports and medical history of 950 patients treated were screened for any irregularities and medical problems.

RESULTS

Most children treated were in the age group 2-5 years, time needed to wake up decreased significantly with age. Fourteen children dropped out of the planned IVA treatment because of medical reasons, 12 of whom were treated under general anaesthesia (GA). A further 26 were treated under GA because of convenience reasons. Total number of medical problems prior to treatment was 45 and mild complications were 42.

CONCLUSIONS

There was a low morbidity in patients treated. The method seems to be successful in young children and creates an increase of treatment capacity in the field of special dental care. Preoperative screening is necessary, on paper and after consultation of a specialist. However blood test screening for allergies seem to be questionable. The treatment method is not possible without the presence of the anaesthesiologist and his team.

Procedural sedation and analgesia in children

Procedural sedation and analgesia for children--the use of sedative, analgesic, or dissociative drugs to relieve anxiety and pain associated with diagnostic and therapeutic procedures--is now widely practised by a diverse group of specialists outside the operating theatre. We review the principles underlying safe and effective procedural sedation and analgesia and the spectrum of procedures for which it is currently done. We discuss the decision-making process used to determine appropriate drug selection, dosing, and sedation endpoint. We detail the pharmacopoeia for procedural sedation and analgesia, reviewing the pharmacology and adverse effects of these drugs. International differences in practice are described along with current areas of controversy and future directions.

An RCT pilot study to test the effects of intravenous midazolam as a conscious sedation technique for anxious children requiring dental treatment--an alternative to general anaesthesia

AIM

To add to the evidence base for acceptable and effective paediatric conscious sedation techniques in dental primary care.

OBJECTIVES

To compare three conscious sedation techniques for primary care as an alternative to dental general anaesthesia (DGA) in children. To assess the feasibility and practicality of running the trial in general dental practice. To form the basis for sample size calculations and assess scales of measurement.

DESIGN

Single centre, randomised control trial (RCT).

SETTING

Queensway Anxiety Management Clinic (QAMC). A primary care based general and referral dental practice for the management of anxious patients.

SUBJECTS, MATERIALS AND METHODS

Sixty five children too anxious for management with relative analgesia, requiring invasive dental procedure for which dental general anaesthesia (DGA) will be required if an alternative cannot be found.

INTERVENTIONS

Group 1 (n = 20) - A combination of inhaled medical air and titrated intravenous midazolam. Group 2 (n = 22) - A combination of inhaled 40% nitrous oxide in oxygen and titrated intravenous midazolam. Group 3 (n = 23) - A combination of an inhaled mixture of 0.3% sevoflurane and 40% nitrous oxide in oxygen with titrated intravenous midazolam.

MAIN OUTCOME MEASURES

Successful completion of the intended dental treatment with a child who is co-operative and responsive to verbal commands.

RESULTS

Fifty per cent (ten children) successfully completed treatment in Group 1, 73% (16 children) in Group 2 and 83% (19 children) in Group 3. This difference was not significant at a 5% level (chi(2) = 5.53, df = 2, P = 0.07) Of the total of 20 failures, eight children in Group 1 and one child in Group 2 were successfully treated with the addition of sevoflurane and nitrous oxide in oxygen. Only two children required referral to a hospital setting for DGA and the remaining nine children were managed with an alternative conscious sedation technique.

CONCLUSION

This pilot shows that intravenous midazolam especially in combination with the addition of inhaled nitrous oxide or sevoflurane and nitrous oxide were promising safe and effective techniques, sufficient to justify progression to a definitive RCT with appropriate methods.

A randomised controlled trial of paediatric conscious sedation for dental treatment using intravenous midazolam combined with inhaled nitrous oxide or nitrous oxide/sevoflurane

Failure of dental treatment due to anxiety is a common problem in children. The aim of this study was to establish whether the use of a combination of intravenous midazolam with inhalation agents (nitrous oxide alone or in combination with sevoflurane) was any more likely to result in successful completion of treatment than midazolam alone. A further aim was to evaluate the clinical viability of these techniques as an alternative to general anaesthesia. In total, 697 children too anxious for management with relative analgesia and requiring invasive dental procedure for which a general anaesthetic would usually be required, were recruited and randomly assigned to one of three groups given the following interventions: group 1 - a combination of inhaled medical air and titrated intravenous midazolam, group 2 - a combination of inhaled 40% nitrous oxide in oxygen and titrated intravenous midazolam, and group 3 - a combination of an inhaled mixture of sevoflurane 0.3% and nitrous oxide 40% in oxygen with titrated intravenous midazolam. The primary outcome measure was successful completion of the intended dental treatment with a co-operative child responsive to verbal commands. In group 1, 54% (94/174 children) successfully completed treatment. In group 2, 80% (204/256 children) and in group 3, 93% (249/267 children) completed treatment. This difference was significant at the 1% level. Intravenous midazolam, especially in combination with inhaled nitrous oxide or sevoflurane and nitrous oxide, are effective techniques, with the combination of midazolam and sevoflurane the one most likely to result in successful treatment.

Strap him down or knock him out: Is conscious sedation with restraint an alternative to general anaesthesia?

When confronting a defiant or pre-co-operative young patient with extensive dental decay the dentist must decide between treatment under conscious sedation with passive restraint or general anaesthesia. Although some practitioners prefer to attempt and exhaust sedative techniques in most cases and use general anaesthesia as a last resort, many others do not mandate that alternate approaches first be attempted before treating under general anaesthesia and routinely recommend it as their first choice. What are the considerations involved in this decision-making process? Should the use of conscious sedation with restraint be revisited and perhaps even be considered the preferred method? What is the role of the dentist in the decision-making process? The purpose of this opinion-based paper is to present to the UK dentist a dilemma that paediatric dentists face in the US and in other countries as well and allow the reader to establish an opinion.

Propofol intravenous conscious sedation for anxious children in a specialist paediatric dentistry unit

OBJECTIVES

To report on both the use and dosage of propofol, as a new intravenous (IV) conscious sedative agent, for anxious children referred to a specialist paediatric dentistry service.

SETTING

Paediatric Dentistry Unit, Glasgow Dental Hospital and School.

SAMPLE

Thirty-four children, 25 females and 9 males, mean age 12 years 10 months, with a mean weight of 54.6 kg (range 30-110 kg).

METHODS

Report from 34 patients receiving intravenous sedation for the first time in respect of weight dose and amount of treatment completed.

RESULTS

Thirty-two children successfully accepted operative dental care on their first visit, they received a mean total dose of 146.25 mg of propofol (range 10 mg to 356 mg); in relation to body weight, the mean was 2.5 mg/kg (range 0.2-5.4 mg/kg). The treatment that they received included fissure sealants, amalgam and adhesive restorations, root canal therapy and single and multiple extractions. Their sedation and recovery were uneventful.

CONCLUSIONS

Sub-anaesthetic doses of propofol used for IV conscious sedation infusion facilitated operative dental treatment in anxious children.