Pneumothorax following serratus anterior plane block.

Serratus anterior plane blocks may provide analgesia for rib fractures, thoracic surgery and breast surgery. There remains uncertainty regarding the location of injection, be it superficial or deep to the serratus anterior muscle. We describe the case of a 63-year-old ASA physical status 3 woman undergoing a wire-guided wide local excision of a right breast lump. A modified right serratus anterior plane block was performed under ultrasound guidance, injecting 20 ml of bupivacaine 0.25% deep to the serratus anterior muscle. No immediate complications were noted. Intra-operatively the patient developed arterial desaturation associated with high airway pressures. A subsequent chest radiograph in the post-anaesthetic care unit demonstrated a large right-sided pneumothorax which was treated with immediate needle decompression and chest drain insertion. This is the first case of pneumothorax reported from this approach to serratus anterior plane blockade and serves as a reminder of a potential serious complication.

Acute pain service: the journey in a developing country setting.

BACKGROUND: In India, acute pain service (APS) is in nascent stage because of lesser importance given to pain management. After establishing an APS in our hospital, we conducted a prospective audit (2008-2011) with an aim to regularly assess the efficacy of techniques on pain scores, muscle power, and adverse effects. METHODS: The audit was undertaken in three phases. An assessment of the existing system and recommendation to modify the APS was undertaken in phase I. In phase II, an APS team was constituted and audits were conducted at six monthly intervals for formation of the protocol. Subsequently in phase III, yearly audits were undertaken that led to the development of a final APS. RESULTS: There was a steady increase in the number of patients availing APS in intravenous patient-controlled analgesia (IVPCA), epidural analgesia (EA), and continuous peripheral nerve block (CPNB). At the same time, the average visual analogue score (VAS) decreased significantly as the year progressed. While the VAS score did not differ significantly between EA and CPNB, it was less compared with IVPCA. Introduction of regional analgesic techniques played a major role in improving the pain scores. CONCLUSION: Implementation of APS resulted in reduced pain scores in our surgical patients. Proper planning, role allocation, formation, and adherence to protocols as well as undertaking regular audit resulted in improving the quality of APS.

Anaesthesia for a patient with congenital methaemoglobinaemia and temporomandibular joint ankylosis.

We report a 10-year-old child with congenital methaemoglobinaemia and temporomandibular joint ankylosis who presented for ophthalmic surgery. He had had two previous anaesthetics in another institution. The first was short and uneventful, and no abnormality was noted. During the second anaesthetic, low haemoglobin oxygen saturation on pulse oximetry was noted after an inhalational induction. The diagnosis was not apparent and the management of the apparent hypoxaemia markedly complicated the clinical course. The patient required prolonged intensive care and tracheostomy. The tracheostomy was ultimately decannulated. Before his third anaesthetic (after referral to the authors' institution) preoperative investigation revealed that the patient, his father and brother all had methaemoglobinaemia.