Practice Guidelines for Moderate Procedural Sedation and Analgesia 2018

The Society for Pediatric Anesthesia recommendations for the use of opioids in children during the perioperative period

Opioids have long held a prominent role in the management of perioperative pain in adults and children. Published reports concerning the appropriate, and inappropriate, use of these medications in pediatric patients have appeared in various publications over the last 50 years. For this document, the Society for Pediatric Anesthesia appointed a taskforce to evaluate the available literature and formulate recommendations with respect to the most salient aspects of perioperative opioid administration in children. The recommendations are graded based on the strength of the available evidence, with consensus of the experts applied for those issues where evidence is not available. The goal of the recommendations was to address the most important issues concerning opioid administration to children after surgery, including appropriate assessment of pain, monitoring of patients on opioid therapy, opioid dosing considerations, side effects of opioid treatment, strategies for opioid delivery, and assessment of analgesic efficacy. Regular updates are planned with a re-release of guidelines every 2 years.

Sedation Strategies for Procedures Outside the Operating Room

With the rapid development of diagnostic and therapeutic procedures performed outside the operating room (OR), the need for appropriate sedation care has emerged in importance to ensure the safety and comfort of patients and clinicians. The preparation and administration of sedatives and sedation care outside the OR require careful attention, proper monitoring systems, and clinically useful sedation guidelines. This literature review addresses proper monitoring and selection of sedatives for diagnostic and interventional procedures outside the OR. As the depth of sedation increases, respiratory depression and cardiovascular suppression become serious, necessitating careful surveillance using appropriate monitoring equipment.

Impact of Moderate Sedation versus Monitored Anesthesia Care on Outcomes and Cost of Endobronchial Ultrasound Transbronchial Needle Aspiration

Background and Objectives

The ideal type of sedation for endobronchial ultrasound transbronchial needle aspiration (EBUS-TBNA) is not known. Two previous studies comparing the diagnostic yield between moderate sedation (MS) and deep sedation/general anesthesia (DS/GA) had provided conflicting results with one study clearly favoring the latter. No study had addressed cost. This is concerning for pulmonologists without routine access to anesthesia services. Our objective was to assess the impact of MS and Monitored Anesthesia Care (sedation administered and monitored by an anesthesiologist) on the outcomes and cost of EBUS-TBNA.

Materials and Methods

We performed a retrospective review of prospectively collected data on consecutive EBUS-TBNA performed under two different types of sedation in a single academic center. A diagnostic TBNA was defined as an aspirate yielding any specific diagnosis or if subsequent surgery or follow-up of nondiagnostic/normal aspirates showed no pathology. Current Medicare time-based allowances were used for professional charges calculation.

Results

There was no difference observed between MS and MAC in regards of the diagnostic yield (92.9% versus 91.9%), procedure duration, number, location, and size of lymph node (LN) sampled, but there were more passes per LN with MAC. The average charges were 74.30 USD for MS and 319.91 for MAC. There were more hypotensive and desaturations episodes with MAC but none required escalation of care.

Conclusions

When performed under MS, EBUS-TBNA has similar diagnostic yield as under MAC but may be associated with less side effects. The difference in sedation cost is modest; however, an additional 245$ for each EBUS done under MAC would have significant cost implications on the health system. These findings are of critical importance for bronchoscopists without routine access to anesthesia services and for optimization of healthcare cost and resource utilization.

Anxiolysis in the Surgical Management of a Compound Odontoma in a Pediatric Patient

Among odontogenic tumors, odontoma is the most frequent. The common treatment contemplates a conservative approach. While this procedure is generally accepted and tolerated, some difficulties may be encountered in the case of pediatric patients. Indeed, negative feelings of tension, apprehension, nervousness, and fear are likely to occur. The present report is aimed at discussing the management of a compound odontoma in a pediatric patient under anxiolysis with diazepam on an outpatient basis. The surgery was carried out without complications, and the discharge was completed safely. Oral premedication with diazepam should be considered to avoid more invasive sedation procedures in anxious pediatric patients.

Recommendations for good practice for sedation in assisted conception

Conscious sedation is a commonly used approach to provide pain relief during transvaginal oocyte retrieval. It has been shown to be effective with high levels of acceptability and patient satisfaction. Fundamental Standards and Development Standards in safe sedation practice have been set out by the Royal College of Anaesthetists and they recommend that Royal Colleges, in association with the relevant sub-specialty organizations, should develop guidelines on sedation methods appropriate to clinical practice in their sphere of influence. This Policy and Practice paper outlines the human resources and equipment necessary to optimize patients' safety for the administration of intravenous (I.V.) sedation in assisted conception units, based on the most current evidence and guidance available.

Advancing the Safe Delivery of Office-Based Dental Anesthesia and Sedation: A Comprehensive and Critical Compendium

The provision for and administration of dental office-based sedation and anesthesia requires considerations and preparations that are unique to dentistry and unlike that of any other office-based and nonoperating room procedures. Anesthesia providers who have only performed dental cases in an operating room are often unaware of the idiosyncrasies and risks associated with performing sedation and anesthesia in the dental office. This article explores the demographics, patient characteristics, morbidity, mortality, and clinical concerns with an in-depth discussion of the dental operating environment. The content is integrated with the current medical and dental guidelines for office-based anesthesia.

Improving patient outcomes with inguinal hernioplasty-local anaesthesia versus local anaesthesia and conscious sedation: a randomized controlled trial

PURPOSE

Conscious sedation is regularly used in ambulatory surgery to improve patient outcomes, in particular patient satisfaction. We hypothesized that the addition of conscious sedation would provide greater patient satisfaction with inguinal hernioplasty compared to local anesthesia alone.

METHODS

This trial was a single-centre, randomized, placebo-controlled, double-blinded trial where patients undergoing inguinal hernioplasty using local anaesthesia were randomized to receive local anaesthesia alone versus local anaesthesia and conscious sedation. The primary outcome of patient satisfaction was assessed using the Iowa Satisfaction with Anesthesia Scale (ISAS). The study was powered to detect a significant difference in ISAS scores between groups. Comparisons were made using T test and Chi square tests. A p value of less than 0.05 was considered significant.

RESULTS

There were 149 patients randomized: 78 to the local anesthesia (LA) group and 71 to the local anaesthesia and conscious sedation (LACS) group. For the primary outcome measure of patient satisfaction, the mean ISAS score was significantly greater in the LACS group (p = 0.009). The experience of pain and pain severity was greater in the LA group (p = 0.016; p = 0.0162 respectively). No statistically significant difference was found between groups with respect to operative time, time to discharge or postoperative complications.

CONCLUSION

The use of conscious sedation with local anesthesia for inguinal hernioplasty is safe, results in less pain experience and severity and is associated with better patient satisfaction. The use of conscious sedation does not delay patient discharge.

Future of paediatric sedation: towards a unified goal of improving practice

This review offers a perspective on the future of paediatric sedation. This future will require continued evaluation of adverse events, their risk factors, and predictors. As the introduction of new sedatives with paediatric applications will remain limited, the potential role of mainstay sedatives administered by new routes, for new indications, and with new delivery techniques, should be considered. The role of non-pharmacological strategies for anxiolysis, along with the application of non-mainstay physiologic monitoring, may aid in the improvement of targeted sedation delivery. Understanding the mechanism and location of action of the different sedatives will remain an important focus. Important developments in paediatric sedation will require that large scale studies with global data contribution be conducted in order to support changes in sedation practice, improve the patient experience, and make sedation safer.

The American Society of Anesthesiologists Practice Parameter Methodology

The methodology used during the development of American Society of Anesthesiologists evidence-based practice parameters, from conceptualization through final adoption of the documents, is described. Features of the methodology include the literature search, review and analysis, survey development and application, and consolidation of the full body of evidence used for preparing clinical practice recommendations. Anticipated risks of bias, validation of the process, and the importance of the documents for clinical use are discussed.

Preoperative Assessment of Obstructive Sleep Apnea in the Ambulatory Anesthesia Patient: A Survey of Oral and Maxillofacial Surgery Providers

PURPOSE

Oral and maxillofacial surgeons often treat patients with both diagnosed and undiagnosed obstructive sleep apnea (OSA). Patients with OSA are at substantial risk of perioperative and postoperative complications after receiving intravenous sedation, general anesthesia, or postoperative opiate analgesia. The purpose of this study was to determine whether oral and maxillofacial surgery (OMS) providers are screening patients for perioperative and postoperative risks related to OSA before office-based ambulatory anesthesia.

MATERIALS AND METHODS

SurveyMonkey software (SurveyMonkey, San Mateo, CA) was used to distribute a survey to 1,658 community- and hospital-based OMS providers in the United States. A response rate of 17.4% (n = 288) was achieved. The 27-question survey was created to obtain demographic information and to assess the preoperative anesthesia routine of the OMS providers. The questions were developed based on American Society of Anesthesiologists guidelines and the STOP-Bang questionnaire to determine the quality and rate of screening for OSA before office-based ambulatory anesthesia procedures.

RESULTS

All incomplete survey responses were excluded from analysis. Demographic analysis showed that 73.61% of the 288 respondents were in private practice only, with no hospital affiliation. Of the respondents, 81.88% reported performing fewer than 50 hospital operating room procedures per year, 81.60% reported performing more than 200 office-based ambulatory anesthesia cases per year, and 96.19% reported performing their own office-based ambulatory anesthesia. In this cohort, only 34.7% of OMS providers stated that they asked patients OSA-specific screening questions, whereas 74.3% reported asking other preoperative anesthesia questions (χ² = 91.0, df = 1, P < .0001).

CONCLUSIONS

Most of the surveyed OMS providers are not screening pre-anesthesia patients for OSA with a quantifiable method such as the STOP-Bang questionnaire. These findings identify a need to investigate the rate of undiagnosed OSA syndrome in the OMS office-based ambulatory anesthesia patient population. The STOP-Bang questionnaire may be a useful tool to better assess for anesthesia risk and modify management accordingly.

Capnography Monitoring for Patients Undergoing Moderate Sedation: An SGNA Fellowship Project

The purpose of this Society of Gastroenterology Nurses and Associates Fellowship project was to determine whether capnography is more accurate than oximetry in identifying symptoms of respiratory depression in patients undergoing moderate sedation. Capnography provides an early warning of respiratory depression and airway compromise, especially when the medications used for sedation include opiates and benzodiazepines. It is a standard of care according to the American Society of Anesthesiologists that should be adopted in order to provide the safest possible environment for the delivery of moderate sedation. During this project, the nursing staff were educated on the importance and usage of capnography. Evidence was gathered that helped show that by using capnography, nurses were able to identify signs of respiratory depression earlier and more frequently than with the use of oximetry and cardiac monitoring alone.

Synchronized mandibular movement and capnography: a novel approach to obstructive airway detection during procedural sedation-a post hoc analysis of a prospective study

Perioperative complications related to obstructive sleep apnea still occur despite the use of partial pressure end-tidal CO₂[Formula: see text] and pulse oximetry. Airway obstruction can complicate propofol sedation and a novel monitor combining mandibular movement analysis with capnography may facilitate its detection. Patients scheduled for sleep endoscopy were recruited and monitored with standard monitoring, [Formula: see text] and Jaw Activity (JAWAC) mandibular movement sensors. A post hoc analysis investigated airway obstruction prediction using a Respiratory Effort Sequential Detection Algorithm (RESDA) based on [Formula: see text] and mandibular movement signals. 21 patients were recruited and 54 episodes of airway obstruction occurred. RESDA detected obstructive apnea [mean ± SD (median)] 29 ± 29 (21) s, p < 0.0001, before [Formula: see text] alone. This prolonged the time between obstructive apnea detection and decrease to 90% oxygen saturation 64 ± 38 (54) versus 38 ± 20 (35) s, p < 0.0001. It predicted airway obstruction with a sensitivity and specificity of 81% and 93%, respectively. The RESDA algorithm, which is based on the combination of capnography with mandibular movement assessment of respiratory effort, can more rapidly alarm anesthetists of airway obstruction during propofol sedation than [Formula: see text] alone. However, [Formula: see text] pulse oximetry, and clinical monitoring are still required.Trial Registry numbers: ClinicalTrial.gov (NCT02909309) https://clinicaltrials.gov/ct2/show/NCT02909309 .

A Multivariate Analysis of Pain and Distress in Adults Undergoing BMAB

Clinicians routinely perform bone marrow aspiration and biopsy (BMAB) to diagnose cancer and evaluate disease status; however, few studies address pain and distress with BMAB. A prospective descriptive-correlational design examined patients' (N = 152) ratings of pain intensity (numeric rating scale, 0-10) and distress (distress thermometer) at baseline and 5 min and 1 hr postprocedure. Data were analyzed using descriptive statistics, chi-square, and linear regression models. Mean postprocedure pain intensity at 5 min was moderate, 5.56 (SD = 3.03), and opioid use was associated with decreased pain at 1 hr (p < .001). Preprocedure administration of anxiolytics had no significant effect on distress reduction (p = .88). Being female, first-time biopsy, and increased preprocedure pain were significant predictors of postprocedure distress (p < .001). Treating anxiety alone may not be sufficient to lessen pain and distress. Individualized plans of care should be based on patient risk and response to procedure.

Sedation versus general anesthesia for transcatheter aortic valve replacement

There is currently significant controversy regarding the best anesthesia management for patients undergoing transcatheter aortic valve replacement (TAVR). Some institutions primarily use general anesthesia (GA) but many institutions primarily use moderate sedation. Much of the controversy is due to the limited evidence base available to inform this decision and the strong feelings and pre-conceived notions about the optimal anesthesia technique which exist amongst anesthesiologists, cardiologists, and cardiac surgeons. In this article and in the context of TAVR, we will define the salient differences between GA and sedation, review the results and limitations of the currently available data, and discuss the priority questions for future research.

Recent Trends in the Practice of Procedural Sedation Under Local Anesthesia for Catheter Ablation, Gastrointestinal Endoscopy, and Endoscopic Surgery in Japan: A Retrospective Database Study in Clinical Practice from 2012 to 2015

OBJECTIVES

To investigate changes in sedation practice during 2012-2015, using a large health claims database, for catheter ablation (CA), gastrointestinal endoscopic examination (EE), and surgery (ES) after dexmedetomidine (DEX) was approved for procedural sedation in 2013. We assessed the trends of sedative utilization, sedative-analgesic combinations, and, additionally, incidence of complications from 2012 to 2015.

METHODS

Using the database provided by Medical Data Vision Co., Ltd. (Tokyo, Japan), annual utilization proportions of the sedatives and sedative-analgesic combinations and occurrence of complications were calculated in patients with a record of local anesthesia and CA, EE, and/or ES but without general anesthesia used on the same day. The sedatives studied were DEX, propofol (PF), midazolam (MDZ), diazepam, flunitrazepam, thiamylal (TIA), thiopental (TIO), and ketamine.

RESULTS

DEX was used most often for CA, followed by PF. From 2012 to 2015, the proportion of DEX increased from 30 to 36%, and that of PF slightly decreased from 29 to 27%. The order of utilization proportions did not change for EE or ES. The use of benzodiazepines, particularly MDZ, predominated. The top five sedative-analgesic combination patterns changed during the study period for CA, but not for EE or ES. The most common complications with CA, EE, and ES were bradycardia, nausea and vomiting, and respiratory depression, respectively. There were no changes in the complications' trends for the procedures.

CONCLUSION

The approved use of DEX for procedural sedation resulted in changes for CA, but not for EE or ES. The complication trends did not change.

Dexmedetomidine and Midazolam Sedation Reduces Unexpected Patient Movement During Dental Surgery Compared With Propofol and Midazolam Sedation

PURPOSE

Owing to its unpredictability, unexpected patient movement is one of the most important problems during surgery while under monitored anesthesia care with sedation. The purpose of this study was to compare unexpected patient movement during dental surgery while under dexmedetomidine and propofol sedation.

MATERIALS AND METHODS

The authors designed and implemented a prospective randomized controlled trial. Patients undergoing dental surgery requiring intravenous sedation were randomly assigned to dexmedetomidine and midazolam (dexmedetomidine group) or propofol and midazolam (propofol group) sedation. In each group, midazolam 0.02 mg/kg was administered in conjunction with continuous administration of dexmedetomidine or propofol to maintain a bispectral index value of 70 to 80. Unexpected patient movement interfering with the procedure was defined as acceptable, defined as no body movement or only 1 controllable movement, or unacceptable, defined as at least 2 controllable movements or any uncontrollable movement. The primary outcome was unexpected patient movement, and the secondary outcome was defined as snoring and cough reflex. Other variables included demographic and procedural characteristics. Continuous or ordinal variables were analyzed using the Student t test or Mann-Whitney test. Dichotomous or categorical variables were analyzed using the χ² test or Fisher exact test. A P value less than.05 was considered statistically significant.

RESULTS

Eighty-eight patients were enrolled in the study (dexmedetomidine group, n = 44; propofol group, n = 44). There were no relevant differences between groups for demographics and baseline variables. Intraoperative unacceptable patient movement occurred more commonly in the propofol group (n = 13; 30%) than in the dexmedetomidine group (n = 4; 9%; P = .015). Intraoperative snoring occurred more commonly in the dexmedetomidine than in the propofol group (P = .045). Incidence and number of cough reflexes were comparable between groups.

CONCLUSION

Dexmedetomidine and midazolam sedation decreases unexpected patient movement during dental surgery compared with propofol and midazolam sedation.

Do we really need an anesthesiologist for routine colonoscopy in American Society of Anesthesiologist 1 and 2 patients?

PURPOSE OF REVIEW

In an era where healthcare costs are being heavily scrutinized, every expenditure is reviewed for medical necessity. Multiple national gastroenterology societies have issued statements regarding whether an anesthesiologist is necessary for routine colonoscopies in American Society of Anesthesiologist (ASA) 1 and 2 patients.

RECENT FINDINGS

A large percentage of patients are undergoing screening colonoscopy without any sedation at all, which would not require an independent practitioner to administer medications. Advances in technique and technology are making colonoscopies less stimulating. Advantages to administering sedation, including propofol, have been seen even when not administered under the direction of an anesthesiologist and complications seem to be rare. The additional cost of having monitored anesthesia care appears to be a driving factor in whether a patient receives it or not.

SUMMARY

A large multiinstitutional randomized control trial would be necessary to rule out potential confounders and to determine whether there is a safety benefit or detriment to having anesthesiologist-directed care in the setting of routine colonoscopies in ASA 1 and 2 patients. Further discussion would be necessary regarding what the monetary value of that effect is if a small difference were to be detected.

The effect of dental scaling noise during intravenous sedation on acoustic respiration rate (RRa™)

BACKGROUND

Respiration monitoring is necessary during sedation for dental treatment. Recently, acoustic respiration rate (RRa™), an acoustics-based respiration monitoring method, has been used in addition to auscultation or capnography. The accuracy of this method may be compromised in an environment with excessive noise. This study evaluated whether noise from the ultrasonic scaler affects the performance of RRa in respiratory rate measurement.

METHODS

We analyzed data from 49 volunteers who underwent scaling under intravenous sedation. Clinical tests were divided into preparation, sedation, and scaling periods; respiratory rate was measured at 2-s intervals for 3 min in each period. Missing values ratios of the RRa during each period were measuerd; correlation analysis and Bland-Altman analysis were performed on respiratory rates measured by RRa and capnogram.

RESULTS

Respective missing values ratio from RRa were 5.62%, 8.03%, and 23.95% in the preparation, sedation, and scaling periods, indicating an increased missing values ratio in the scaling period (P < 0.001). Correlation coefficients of the respiratory rate, measured with two different methods, were 0.692, 0.677, and 0.562 in each respective period. Mean capnography-RRa biases in Bland-Altman analyses were -0.03, -0.27, and -0.61 in each respective period (P < 0.001); limits of agreement were -4.84-4.45, -4.89-4.15, and -6.18-4.95 (P < 0.001).

CONCLUSIONS

The probability of missing respiratory rate values was higher during scaling when RRa was used for measurement. Therefore, the use of RRa alone for respiration monitoring during ultrasonic scaling may not be safe.

Standards of care for procedural sedation: Focus on differing perceptions among societies

Adherence to established standards of care is important for anaesthesiologists to avoid undesirable legal consequences of their actions. The judiciary lays stress on the need to perpetuate healthy doctor–patient correspondence, good documentation, and to bestow a justifiable standard of care. But what defines standard of care and who delineates such standards is something that lacks clarity. The American Society for Gastrointestinal Endoscopy (ASGE) has recently released updated guidelines on the use of sedation and anaesthesia for gastrointestinal endoscopic procedures. Almost simultaneously, the American Society of Anesthesiologists (ASA) has brought out practice guidelines for moderate sedation and analgesia. In contrast to the ASA recommendations, ASGE does not view capnography as an essential monitoring modality for endoscopic procedures with moderate sedation because it has apparently not been shown to improve patient safety. However, they do agree that evidence supports its deployment during deep sedation. These differences in views between guidelines published by societies of substantial academic and clinical standing can confuse the agreement over what constitutes standard of care for the particular speciality. It is the expectation that guidelines and consensus statements in anaesthesiology be preferably issued by national or international organizations of the same speciality.