Ultrasound-guided selective glossopharyngeal nerve block: posterior mandibular ramus approach.

OBJECTIVE: Glossopharyngeal nerve block is a useful interventional technique for pain management of the head and neck. It is performed with landmark techniques or ultrasound guidance. We propose a novel ultrasound-guided glossopharyngeal nerve block technique. METHODS: This new approach was performed in 3 patients in their twenties and thirties. A needle was inserted deeply under the stylohyoid muscle through the sternocleidomastoid muscle. Subsequently, an ultrasound-guided nerve block was performed with 1 mL of 1% xylocaine. The performance of our technique was evaluated with 2 tests: a cold sensitivity test and a gag reflex test. RESULTS: The effect of the nerve block was observed in the posterior third of the tongue on both sides, the tonsils, and the pharyngeal region. The effect lasted for approximately 1.5 hour. Motor efferent block was not observed. CONCLUSIONS: We designated the technique as ultrasound-guided selective glossopharyngeal nerve block: posterior mandibular ramus approach. No complications occurred during the bilateral application. This novel approach can be performed at a very shallow position, compared with conventional methods. There is no damage to tissues other than the muscles, which reduces postoperative complications and patient distress. Although our technique requires further safety assessments and technical refinements, it could represent a simpler alternative to conventional methods in daily clinical practice.

Comparison of Pressure Control Ventilation and Palpation Methods to Protect the Endotracheal Tube Cuff During Tracheotomy: A Manikin Simulation Study.

Objective This study aims to evaluate and compare the suitability and safety of palpation and pressure control ventilation (PCV) methods for the accurate positioning of an endotracheal tube (ETT) cuff. Methods We conducted a pilot simulation randomized crossover study using a medical manikin. Twenty junior resident physicians who had completed anesthesiology training participated in the study. Airway management was performed using a modified manikin designed to simulate palpation and PCV methods. Participants performed both methods in a randomized order. The primary outcome was the number of successful ETT placements. The secondary outcomes were procedure duration and the perceived difficulty of each procedure. Results Five successful procedures were observed in the palpation method group (PALG), while 19 were observed in the PCV method group (PCVG). The duration of the trial was 98 s (standard deviation [SD], 41) in the PALG and 93 s (SD, 49) in the PCVG. The visual analog scale score for difficulty encountered during the trial was 30 (SD, 21) in the PALG and 69 (SD, 19) in the PCVG. Conclusions Our findings suggest that the PCV method had a higher success rate than the palpation method. Thus, the PCV method may be more suitable for inexperienced physicians to perform the procedure with greater confidence.

Intraoperative Ultrasound-Guided Selective Glossopharyngeal Nerve Block for Post-tonsillectomy Analgesia: A Case Report.

Tonsillectomy can lead to significant postoperative pain, which can impact the recovery process. Traditional analgesic approaches may entail risks due to medication use. Considering that the tonsils are innervated by the glossopharyngeal and maxillary nerves, implementing glossopharyngeal and maxillary nerve blocks can provide analgesia. Ultrasound guidance may improve its effectiveness and safety. A woman in her 30s with recurrent tonsillitis underwent tonsillectomy under general anesthesia. After induction, we performed an ultrasound-guided selective glossopharyngeal nerve block and an ultrasound-guided maxillary nerve block with ropivacaine. No analgesics were required during the six-day hospitalization period. There were no complications from the nerve blocks such as dysphagia or upper airway obstruction. The findings from this case indicated that the ultrasound-guided selective glossopharyngeal nerve block and ultrasound-guided maxillary nerve block provided effective analgesia after tonsillectomy without complications.

Ultrasound-Guided Maxillary Nerve Block and Superficial Cervical Plexus Block During Surgery for Maxillary Malignancy: A Case Report.

We report a case of ultrasound-guided craniocervical nerve blocks performed with ropivacaine for perioperative local/regional anesthesia in a patient who underwent right partial maxillary resection and neck dissection under general anesthesia. The patient was an 85-year-old woman with multiple medical comorbidities in whom analgesia using nonsteroidal anti-inflammatory drugs and opioids was expected to increase the risk of postoperative complications. Bilateral ultrasound-guided maxillary (V2) nerve blocks and a right superficial cervical plexus block were performed, which provided adequate perioperative anesthesia and avoided postoperative complications. The use of ultrasound-guided craniocervical nerve blocks with ropivacaine can be an effective approach for providing prolonged perioperative local anesthesia and analgesia, minimizing the need for other potentially problematic analgesics.

Tracheostomy Tube Exchange Failure Under General Anesthesia: A Case Report and Retrospective Analysis.

A 54-year-old man with squamous cell carcinoma of the tongue underwent bilateral cervical lymph node dissection, total tongue resection, forearm flap reconstruction, and tracheostomy. The plan was to replace the oral endotracheal tube (ETT) with a cuffed tracheostomy tube at the end of the surgical case while the patient was still under general anesthesia. No major complications were expected as the tracheal foramen was visible once surgical access was obtained. However, removal of the ETT and subsequent placement of the tracheostomy tube failed twice. Successful ventilation was not observed via capnography, and the patient's peripheral oxygen saturation (SpO2) dropped to 70%. The anesthesiologist concluded that securing the airway through the tracheostomy would be difficult. The patient was immediately reintubated orally at which time his SpO2 was 38%, and he was successfully resuscitated and recovered without any sequelae. This rare situation was one we had not encountered previously, so we retrospectively analyzed all tracheostomy cases performed by our department from the past 3 years. Data from 54 patients who underwent tracheostomy tube exchange after tracheostomy were aggregated from their medical records and compared with our patient. Excluding the conditions during surgery, we surmised that tracheal depth, S/H ratio, and body weight were identified as potentially significant risk factors for failed tracheal tube placement or exchange.

Perioperative Analgesia Using an Indwelling Catheter to Deliver an Inferior Alveolar Nerve Block: A Case Report.

A 74-year-old male was diagnosed with osteomyelitis of the left mandible requiring marginal mandibulectomy under general anesthesia. However, the patient's pulmonary function tests demonstrated findings consistent with severe chronic obstructive pulmonary disease, classified as stage III. The consulting pulmonologist explained the increased risk of respiratory complications associated with general anesthesia and advised against its use. Therefore, we opted to perform the surgery under moderate sedation using 0.2% ropivacaine administered via bilateral ultrasound-guided inferior alveolar nerve blocks (UGIANBs) and an indwelling catheter with a pump for continuous perioperative local anesthesia and prolonged postoperative analgesia. This approach delivered excellent local anesthetic effects without any need for rescue medications or complications. Use of UGIANBs along with an indwelling catheter and pump may provide adequate local anesthesia and postoperative analgesia in patients with contraindications for general anesthesia.

Ultrasound-Guided Local Anesthetic Nerve Blocks in a Forehead Flap Reconstructive Maxillofacial Procedure.

Head and neck reconstructive surgery involving tissue flaps is often complex requiring the development of an individualized anesthetic plan. The following case report describes the anesthetic management of an 87-year-old man considered at high risk for postoperative delirium due to advanced age and blindness undergoing general anesthesia for resection of squamous cell carcinoma of the right side of the nose and reconstructive surgery with a scalping forehead flap. Ultrasound-guided local anesthetic maxillary and supraorbital nerve blocks were successfully used perioperatively to reduce the need for alternative analgesics associated with higher risks of complications such as postoperative nausea, vomiting, and delirium.