Lung cancer is the leading cause of cancer death worldwide. It may present as airway obstruction in a patient with endobronchial masses. Endobronchial brachytherapy (EBBT) has been shown to provide palliative therapy. It is the insertion of a radioactive material near the mass to reduce tumor size, thereby improving airway obstruction. This is the first case of EBBT done in our institution during the COVID-19 pandemic. A 53-year-old male, 60 kg, ASA Physical Status 2 for hypertension, smoker, malignancy, and previous pulmonary tuberculosis patient, presented with a cough and dyspnea. An endobronchial mass almost obstructing the right mainstem bronchus was seen on a computed tomography (CT) scan. He was diagnosed with squamous cell carcinoma of the lung and underwent radiotherapy and erlotinib chemotherapy. On repeat CT scan, there was no noted decrease in the size of the mass. EBBT was suggested, and a multi-disciplinary team was formed for the planned procedure. Pulmonology, radiation oncology, and anesthesiology teams were identified, and thorough planning was done prior to the actual procedure. Three fractions of EBBT were done under sedation using midazolam, fentanyl, and dexmedetomidine infusion. Lidocaine spray and transtracheal block were also performed as adjuncts prior to sedation. The procedure went as planned, and points for improvement were discussed for subsequent fractions. Due to persistent cough and discomfort from the catheter, additional ipratropium nebulization for minimization of secretions, and oral dextromethorphan for cough suppression were incorporated. After each fraction, the patient was monitored post-procedure for any side effects both from the radiotherapy and anesthetic technique. Qualitative reduction in mass size was noted in subsequent fractions. The patient was able to complete 3 fractions and was advised to follow-up after a month. EBBT is an emerging palliative and treatment modality for lung cancer, especially for intraluminal masses. Anesthetic considerations will depend on each case’s characteristics such as airway anatomy, patient comfort and capacity, and procedural requirements. Conscious sedation with topical anesthesia is an adequate and appropriate anesthetic option, especially in cases where severe airway obstruction may compromise ventilation if airway reflexes are blunted. A multidisciplinary approach with different services and stakeholders is important for the proper planning, execution, and management of such patients.
Lung Neoplasms ; Conscious Sedation ; Dexmedetomidine ; Midazolam ; Fentanyl ; Lidocaine ; Dextromethorphan

OBJECTIVE: To study the effect of propofol used for painless gastroscopy and colonoscopy on psychomotility recovery. METHODS: One hundred adult patients undergoing painless gastroscopy and colonoscopy were recruited, aged 18-72 years, with American Society of Anesthesiologist (ASA) physical status Ⅰ-Ⅱ. According to age, the patients were divided into youth group (20-39 years old, 27 cases), middle age group (40-54 years old, 37 cases), and elder group (55-64 years old, 36 cases). Propofol was continuously infused according to the patients' condition to mantain the bispectal index (BIS) score 55-64. All the patients received psychomotility assesment 30 min before the operations when the discharge criteria were met including number cancellation test, number connection test and board test. The heart rate, blood pressure, saturation of pulse oximetry, electrocardiograph and BIS were monitored during the operation. The operating time, recovery time, total volume of propofol and discharge time were recorded. If the results obtained were inferior to those before operation, a third assessment was taken 30 minutes later until the results recovered or being superior to the baseline levels. RESULTS: All the patients completed the first and second assessments, and 25 patients had taken the third assessment. There was no statistically significant difference in the results of psychomotility assessment when the patients met the discharge standard. Furthermore, the results were analyzed by grouping with age, and there was no statistical difference in the test results of the youth and middle age groups compared with the preoperative group, among which, the efficiency of the number cancellation test was significantly better than that before operation in the youth group (P < 0.05). However, in the elderly patients the number cancellation efficiency, number connection test and board test were significantly inferior to that before operation (P < 0.05). There was no significant difference in the accuracy of number cancellation compared with that before operation. The patients who needed the third test in the elder group were significantly more than in the other groups (P < 0.05). Compared with the preoperative results, there was no statistical difference in the test results of those who completed the third test. CONCLUSION The psychomotility function of the patients who underwent painless gastroscopy and colonoscopy was recovered when they met discharge criteria. The elderly patients had a prolonged recovery period.
Adult ; Aged ; Middle Aged ; Adolescent ; Humans ; Young Adult ; Propofol ; Hypnotics and Sedatives ; Gastroscopy/methods* ; Conscious Sedation/methods* ; Colonoscopy/methods*

Anesthesia ; Conscious Sedation ; Endoscopy, Gastrointestinal ; Humans

Anesthesia ; Conscious Sedation ; Endoscopy, Gastrointestinal ; Humans ; Singapore

Anesthesia ; Conscious Sedation ; Endoscopy, Gastrointestinal ; Hospitals ; Humans ; Singapore

The use of nitrous oxide-oxygen inhalation sedation to relieve anxiety and pain in dental outpatient treatment has been a very mature and safe technique in the world. This technology has been introduced into China for nearly 20 years, and many clinical cases have proved its safety, practicability and effectiveness, which can meet the clinical needs of patients. To further standardize and popularize this technique, the Society of Sedation and Analgesia, Chinese Stomatological Association formed the recommended application guidelines after many discussions and revisions on the basis of widely soliciting opinions and referring to relevant literatures. It covers indications, contraindications, standardized operation procedures, occupational protection, identification and treatment of adverse reactions, training and other aspects. This guideline can be used as a reference for the use of nitrous oxide-oxygen inhalation sedation techniques in the outpatient setting of dentistry.
Anesthesia, Dental ; Anesthetics, Inhalation/adverse effects* ; Conscious Sedation/methods* ; Dental Anxiety/prevention & control* ; Humans ; Nitrous Oxide/adverse effects* ; Outpatients ; Oxygen

INTRODUCTION: Although ketamine is one of the commonest medications used in procedural sedation of children, to our knowledge, there is currently no published report on predictors of respiratory adverse events during ketamine sedation in Asian children. We aimed to determine the incidence of and factors associated with respiratory adverse events in children undergoing procedural sedation with intramuscular (IM) ketamine in a paediatric emergency department (ED) in Singapore. METHODS: A retrospective analysis was conducted of all children who underwent procedural sedation with IM ketamine in the paediatric ED between 1 April 2013 and 31 October 2017. Demographics and epidemiological data, including any adverse events and interventions, were extracted electronically from the prospective paediatric sedation database. The site of procedure was determined through reviewing medical records. Descriptive statistics were used for incidence and baseline characteristics. Univariate and multivariate logistic regression analyses were performed to determine significant predictors. RESULTS: Among 5,476 children, 102 (1.9%) developed respiratory adverse events. None required intubation or cardiopulmonary resuscitation. Only one required bag-valve-mask ventilation. The incidence rate was higher in children aged less than three years, at 3.6% compared to 1.0% in older children (odds ratio [OR] 3.524, 95% confidence interval [CI] 2.354-5.276; p < 0.001). Higher initial ketamine dose (adjusted OR 2.061, 95% CI 1.371-3.100; p = 0.001) and the type of procedure (adjusted OR 0.190 (95% CI 0.038-0.953; p = 0.044) were significant independent predictors. CONCLUSION The overall incidence of respiratory adverse events was 1.9%. Age, initial dose of IM ketamine and type of procedure were significant predictors.
Child ; Conscious Sedation/methods* ; Emergency Service, Hospital ; Humans ; Incidence ; Ketamine/adverse effects* ; Prospective Studies ; Retrospective Studies

Anesthesia ; Conscious Sedation ; Humans ; Hypnotics and Sedatives/adverse effects*

INTRODUCTION: In Singapore, non-anaesthesiologists generally administer sedation during gastrointestinal endoscopy. The drugs used for sedation in hospital endoscopy centres now include propofol in addition to benzodiazepines and opiates. The requirements for peri-procedural monitoring and discharge protocols have also evolved. There is a need to develop an evidence-based clinical guideline on the safe and effective use of sedation by non-anaesthesiologists during gastrointestinal endoscopy in the hospital setting. METHODS: The Academy of Medicine, Singapore appointed an expert workgroup comprising 18 gastroenterologists, general surgeons and anaesthesiologists to develop guidelines on the use of sedation during gastrointestinal endoscopy. The workgroup formulated clinical questions related to different aspects of endoscopic sedation, conducted a relevant literature search, adopted Grading of Recommendations, Assessment, Development and Evaluation (GRADE) methodology and developed recommendations by consensus using a modified Delphi process. RESULTS: The workgroup made 16 recommendations encompassing 7 areas: (1) purpose of sedation, benefits and disadvantages of sedation during gastrointestinal endoscopy; (2) pre-procedural assessment, preparation and consent taking for sedation; (3) Efficacy and safety of drugs used in sedation; (4) the role of anaesthesiologist administered sedation during gastrointestinal endoscopy; (5) performance of sedation; (6) post-sedation care and discharge after sedation; and (7) training in sedation for gastrointestinal endoscopy for non-anaesthesiologists. CONCLUSION These recommendations serve to guide clinical practice during sedation for gastrointestinal endoscopy by non-anaesthesiologists in the hospital setting.
Conscious Sedation ; Endoscopy, Gastrointestinal ; Hospitals ; Humans ; Hypnotics and Sedatives ; Singapore

In recent years, dental treatments of the outpatient children under general anesthesia has gradually developed as a relatively mature behavior management model. Due to the limited operating time and the large patient flow of children in outpatient clinics, higher requirements of management are proposed both in anesthesia and dental treatment phases. The Society of Sedation and Analgesia of the Chinese Stomatological Association organized experts to formulate a guideline of dental treatments of children under general anesthesia in outpatient clinic. The guideline would provide operable implementing criteria for the entire process including general anesthesia in the dental clinics, basic clinical conditions, types of oral diagnosis and treatment, evaluation and preparation before diagnosis and treatment, anesthesia implementation and monitoring, management during the recovery period, common complications and key points of treatments. This guideline will play an important role in the rapid development of the safe and comfort dental treatments of children under general anesthesia in China.
Anesthesia, Dental ; Anesthesia, General ; Child ; China ; Conscious Sedation ; Humans ; Pediatric Dentistry