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Background During anesthesia, atelectasis is frequent, and it is also seen in critically ill individuals with a variety of underlying causes and pathologies. Objective The present study was conducted to assess whether there is a correlation between perioperative atelectasis and duration of anesthesia, pneumoperitoneum, and length of surgery in patients undergoing laparoscopic cholecystectomy. Material and methods Seventy-two American Society of Anesthesiologists (ASA) grade I-III patients of either gender undergoing elective laparoscopic cholecystectomy who met the inclusion criteria were enrolled in this observational study. The lung ultrasound (LUS) score was used to determine the amount of aeration loss. LUS scoring was performed at five predetermined time points: preoperative period (time point A), five minutes after induction (time point B), five minutes after pneumoperitoneum insufflation (time point C), end of surgery before extubation (time point D), and one hour after extubation in the postoperative room (time point E). Results At time points A, B, C, D, and E, vital parameters such as pulse rate, respiratory rate, oxygen saturation, and noninvasive blood pressure were continuously monitored and recorded. Hemodynamics remained stable, and no clinically significant changes in parameters were seen at any stage during the procedure. At each time point, the change in the LUS score was statistically significant (p-value = 0.01). Following the induction of general anesthesia, there was an increase in LUS scores, which increased further after the creation of pneumoperitoneum. Throughout the pneumoperitoneum and anesthetic periods in our investigation, the LUS score steadily climbed. Conclusion Even during short-term surgeries such as laparoscopic cholecystectomy, atelectasis can occur. The duration of pneumoperitoneum and ASA status can contribute to atelectasis.
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BACKGROUND AND AIMS: The patients undergoing total knee and hip replacement surgeries are mostly obese, more than 50 years of age with osteophytic spine and spine deformities making the blind conventional technique of regional anaesthesia more difficult. The aim of the study was to compare the role of preprocedural ultrasound scan to conventional blind technique in obese patients with osteophytic spines undergoing total knee or hip replacement surgeries in terms of technical difficulty, clinical efficacy, safety and patient comfort. METHODS: A prospective, randomised controlled trial was conducted in which 210 consenting American Society of Anesthesiologists (ASA) grade III patients, age >50 years, Body Mass Index (BMI) ≥30 kg/m2 with osteophytic spines including abnormalities undergoing joint replacement surgeries were randomised in two groups. Ultrasound group ("B") received Combined Spinal Epidural Anaesthesia (CSEA) after preprocedural lumbar ultrasound scan. In control group ("A"), CSEA was given by blind conventional technique. The primary objective was to compare the rate of successful epidural block on 1st needle insertion attempts in both the groups. The secondary objectives were to compare both groups in terms of ease, success, comfort and safety of epidural block. RESULTS: Ultrasound improved success of CSEA at 1st attempt from 74.3% in control group ("A") to 85.7% in Ultrasound group ("B") (P = 0.038). Fewer needle insertion attempts, passes and anaesthesiologist were required in ultrasound group. Pearson correlation coefficient was 0.976 using both views. CONCLUSION: Preprocedural ultrasound scan is a useful adjunct to lumbar epidural blocks in obese patients with osteophytic abnormal spines.
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BACKGROUND AND AIMS: Dexmedetomidine has been demonstrated to be safe and efficacious in prolonging the duration of peripheral nerve blocks. This study was designed to compare the duration, quality of postoperative analgesia, hemodynamic stability, and patient's satisfaction with addition of dexmedetomidine to bupivacaine versus plain bupivacaine in pectoral nerve block (Pecs) type I and II in breast surgeries. MATERIAL AND METHODS: This prospective randomized double-blind study was carried out in 60 American Society of Anesthesiologists grade I-III female patients, aged 18-70 years randomly allocated into two equal groups. Group A received 10 ml 0.25% bupivacaine for pecs I block and 20 ml 0.25% bupivacaine for pecs II block. Group B received 10 ml 0.25% bupivacaine with dexmedetomidine for pecs I block and 20 ml 0.25% bupivacaine with dexmedetomidine in pecs II block, keeping a total dose of dexmedetomidine of 1 µg/kg body weight and the volume constant in both the groups. RESULTS: Numerical rating scores at rest and on abduction of arm were significantly lower in Group B. There was a 40% increase in duration of complete analgesia in dexmedetomidine group (1024.0 ± 124.9 min) compared to plain bupivacaine (726.4 ± 155.3 min; P < 0.001). Total consumption of injection diclofenac sodium in 24 h was 23% less in Group B (77.5 ± 13.6 mg) compared to Group A (100.0 ± 35.9 mg, P = 0.003). Patient satisfaction score was significantly better in dexmedetomidine group. No adverse effects were noted in either group. CONCLUSION: Dexmedetomidine as an adjunct to bupivacaine helps prolong the duration and improves the quality of postoperative analgesia in pecs I and II block without serious side effects.