1.Anesthesia for massive retrosternal goiter with severe intrathoracic tracheal narrowing: the challenges imposed: A case report.
Peter Chee Seong TAN ; Norzalina ESA
Korean Journal of Anesthesiology 2012;62(5):474-478
Anesthetic management of patients with mediastinal masses remains challenging as acute cardiorespiratory decompensation may follow induction of anesthesia. We describe a 57 year old lady with massive retrosternal goiter and severe intrathoracic tracheal compression who had a total thyroidectomy. Comprehensive contingency plans were an essential prerequisite for successful management of difficult airway, including multidisciplinary involvement of otorhinolaryngologic and cardiothoracic surgeons preparing for rigid bronchoscopy and cardiopulmonary bypass. Awake oral fiberoptic intubation was performed under dexmedetomidine sedation. Severe tracheal narrowing necessitated usage of a 5.0 mm uncuffed flexometallic endotracheal tube. Anesthesia was maintained with sevoflurane and dexmedetomidine infusion with target controlled infusion of remifentanil as analgesia. No muscle relaxant was given. Surgical manipulation led to intermittent total tracheal compression and inadequate ventilation. The tumor was successfully removed via the cervical approach. A close working relationship between anesthesiologists and surgeons was the key to the safe use of anesthesia and uneventful recovery of this patient.
Analgesia
;
Anesthesia
;
Bronchoscopy
;
Cardiopulmonary Bypass
;
Dexmedetomidine
;
Goiter
;
Humans
;
Intubation
;
Methyl Ethers
;
Muscles
;
Piperidines
;
Thyroidectomy
;
Ventilation
2.A comparison of analgesic efficacy between oblique subcostal transversus abdominis plane block and intravenous morphine for laparascopic cholecystectomy. A prospective randomized controlled trial.
Chee Kean CHEN ; Peter Chee Seong TAN ; Vui Eng PHUI ; Shu Ching TEO
Korean Journal of Anesthesiology 2013;64(6):511-516
BACKGROUND: The ultrasound-guided oblique subcostal transversus abdominis plane (OSTAP) block provides a wider area of sensory block to the anterior abdominal wall than the classical posterior approach. We compared the intra-operative analgesic efficacy of OSTAP block with conventional intravenous (IV) morphine during laparoscopic cholecystectomy. METHODS: Forty adult patients undergoing laparoscopic cholecystectomy under standard general anesthesia, were randomly assigned for either bilateral OSTAP block using 1.5 mg/kg ropivacaine on each side (n = 20) or IV morphine 0.1 mg/kg (n = 20). The intra-operative pulse rate, systolic and diastolic blood pressure and mean arterial blood pressure were monitored every five minutes. Repetitive boluses of IV fentanyl 0.5 microg/kg were given as rescue analgesia when any of the above-mentioned parameters rose more than 15% from the baseline values. Time to extubation was documented. Additional boluses of IV morphine 0.05 mg/kg were administered in the recovery room if the recorded visual analogue score (VAS) was more than 4. Nausea and vomiting score, as well as sedation score were recorded. RESULTS: The morphine group required more rescue fentanyl as compared to the OSTAP block group but the difference was not significant statistically. Time to extubation was significantly shorter in the OSTAP block group (mean [SD] 10.4 [2.60] vs 12.4 [2.54] min; P = 0.021). Both methods provided excellent analgesia and did not differ in postoperative morphine requirements. No between-group differences in sedation score and incidence of nausea and vomiting were demonstrated. CONCLUSIONS: Ultrasound-guided OSTAP block has an important role as part of balanced anesthesia. It is as efficacious as IV morphine in providing effective analgesia during laparoscopic cholecystectomy.
Abdominal Wall
;
Adult
;
Amides
;
Analgesia
;
Anesthesia, General
;
Arterial Pressure
;
Balanced Anesthesia
;
Blood Pressure
;
Cholecystectomy
;
Cholecystectomy, Laparoscopic
;
Fentanyl
;
Heart Rate
;
Humans
;
Incidence
;
Morphine
;
Nausea
;
Prospective Studies
;
Recovery Room
;
Vomiting
3.Comparing the outcome of monitored anaesthesia care and local anaesthesia for carpal tunnel syndrome surgery by neurosurgeons
Goh Chin Hwee ; Lau Bik Liang ; Teong Sook Yee ; Law Wan Chung ; Tan Peter Chee Seong ; Ravindran Vashu ; Liew Donald Ngian San ; Wong Albert Sii Hieng
The Medical Journal of Malaysia 2019;74(6):499-503
Introduction: Carpal tunnel syndrome (CTS) is the
commonest median nerve entrapment neuropathy of the
hand, up to 90% of all nerve compression syndromes. The
disease is often treated with conservative measures or
surgery. The senior author initially intended to treat his own
neurosurgical patients concurrently diagnosed with carpal
tunnel syndrome in 2014, subsequently, he began to pick up
more referrals from the primary healthcare group over the
years. This has led to the setup of a peripheral and spine
clinic to act as a hub of referrals. Objective: Department of
Neurosurgery Sarawak aimed to evaluate the surgical
outcome of carpal tunnel release done over five years.
Methods: The carpal tunnel surgeries were done under local
anaesthesia (LA) given by neurosurgeons (Bupivacaine
0.5% or Lignocaine 2%). Monitored anaesthesia care (MAC)
was later introduced by our hospital neuroanaesthetist in
the beginning of 2018 (Target-controlled infusion propofol
and boluses of fentanyl). We looked into our first 17 cases
and compared these to the two anaesthesia techniques (LA
versus MAC + LA) in terms of patient’s pain score based on
visual analogue scale (VAS).
Results: Result showed MAC provided excellent pain control
during and immediately after the surgery. None experienced
anaesthesia complications. There was no difference in pain
control at post-operation one month. Both techniques had
equal good clinical outcome during patients’ clinic follow
up.
Conclusion: Neurosurgeons provide alternative route for
CTS patients to receive surgical treatment. Being a
designated pain free hospital, anaesthetist collaboration in
carpal tunnel surgery is an added value and improves
patients overall experience and satisfaction.