Journal: Journal of clinical anesthesia
To test the hypothesis that muscle relaxant is not necessary in patients who are undergoing laparoscopic gynecological surgery with a ProSeal Laryngeal Mask Airway (ProSeal LMA™).
A case of high-frequency jet ventilation (HFJV) during video-assisted thoracoscopicsurgery (VATS) in a patient with previous contralateral pneumonectomy is presented. A 77yearold man with a right pneumothorax was scheduled for bullectomy by VATS. He had undergone left pneumonectomy due to lung cancer 6 years earlier.Anesthesia was induced and maintained with propofol and fentanyl. The patient was intubated with a normal, single-lumen endotracheal tube (ETT).HFJV was applied through the ETT during the VATS procedure. Although PaCO(2) gradually increased from 51.9 mmHg to 80.0 mmHg, appropriate surgical conditions were provided, PaO(2) was well preserved, and blood pressure and heart rate were stable throughout the VATS procedure.
STUDY OBJECTIVE: To determine whether a bolus technique provides enhanced analgesia compared with a continuous infusion for femoral nerve block. DESIGN: Prospective, single-blinded, randomized controlled trial (ClinicalTrials.gov Identifier: NCT01226927). SETTING: Perioperative areas and orthopedic surgical ward of a university hospital. PATIENTS: 45 ASA physical status 1, 2, and 3 patients undergoing unilateral primary total knee arthroplasty. INTERVENTIONS: All patients received single-injection sciatic and femoral nerve blocks plus a femoral nerve catheter placement for postoperative analgesia. Patients were randomly assigned to an automated intermittent bolus (5 mL every 30 min with 0.1 mL/hr basal rate) or a continuous infusion (10.1 mL/hr) delivery method of 0.2% ropivacaine. MEASUREMENTS: Consumption of intravenous patient-controlled analgesia (IV-PCA) and visual analog scale (VAS) pain scores were assessed postoperatively at set intervals until the morning of postoperative day (POD) 2. MAIN RESULTS: The mean (SEM) cumulative IV-PCA dose (mg of hydromorphone) for the 36-hour postoperative interval measured was 12.9 ± 2.32 in the continuous infusion rate group (n = 20) and 7.8 ± 1.02 in the intermittent bolus group [n = 21, t(39) = 2.04, P = 0.048; a 39 ± 14% difference in total usage]. Pain scores were statistically significantly lower in the intermittent bolus group in the afternoon of POD 1 (t(39) = 2.47, P = 0.018), but were otherwise similar. CONCLUSIONS: An automated intermittent bolus infusion technique for femoral nerve catheters is associated with clinically and statistically significantly less IV-PCA use (ie, an opioid-sparing effect) than a continuous infusion technique.
To determine if a high score (≥ 3) on the STOP-Bang screening questionnaire for obstructive sleep apnea (OSA) predicts whether obese patients are at high risk for OSA and increased risk of difficult airway.
In the perioperative scenario, adequate fluid and volume therapy is a challenging task. Despite improved knowledge on the physiology of the vascular barrier function and its respective pathophysiologic disturbances during the perioperative process, clear-cut therapeutic principles are difficult to implement. Neglecting the physiologic basis of the vascular barrier and the cardiovascular system, numerous studies proclaiming different approaches to fluid and volume therapy do not provide a rationale, as various surgical and patient risk groups, and different fluid regimens combined with varying hemodynamic measures and variable algorithms led to conflicting results. This review refers to the physiologic basis and answers questions inseparably conjoined to a rational approach to perioperative fluid and volume therapy: Why does fluid get lost from the vasculature perioperatively? Whereto does it get lost? Based on current findings and rationale considerations, which fluid replacement algorithm could be implemented into clinical routine?
Possible advantages and risks associated with ultrasound guided radial artery cannulation in-comparison to digital palpation guided method in adult patients are not fully known. We have compared ultrasound guided radial artery cannulation with digital palpation technique in this meta-analysis.
We present the case report of a 49-year-old gentleman with a history of adenoid cystic carcinoma of the left nare status post curative bifrontal craniotomy, left lateral rhinotomy and medial maxillectomy, adjuvant radiotherapy, and orbital exenteration for optic neuropathy, complicated by medial wall dehiscence. His course was also complicated by severe radiation trismus, for which he was scheduled to undergo bilateral mandibular coronoidectomies. Given his limited mouth opening, the surgeon requested a nasal endotracheal tube. Because of concerns of traumatizing his nare, we utilized a flexible fiberoptic bronchoscope to perform asleep transorbital intubation. Airway management in patients with severe trismus may require ingenuity.
Regional anesthesia may mitigate the risk of persistent postoperative pain (PPP). This Cochrane review, published originally in 2012, was updated in 2017.
The postoperative period is associated with an inflammatory response that may contribute to a number of complications including postoperative fatigue (POF) that impair patients' quality of life (QoL). We studied the impact of three potentially anti-inflammatory interventions (steroid administration, tight intraoperative glucose control, and light anesthesia) on POF and QoL in patients having major noncardiac surgery.
Protocol changes at Vanderbilt have been adopted with the intention of reducing unnecessary preoperative testing. We sought to evaluate their success and association with clinical decisions.