Intraoperative Hemodynamics Research Articles

Dexmedetomidine Nasal Packing Versus Intravenous Dexmedetomidine for Controlling Bleeding During Turbinate Surgeries: A Randomized Double-Blind Trial

Background: Nasal obstruction due to hypertrophied turbinates (HT) is one of the common reasons for patients undergoing turbinate operations. This condition is associated with intraoperative nasal bleeding, which can obscure visibility of the field and prolong surgery time. Objectives: The purpose of this study is to compare dexmedetomidine-soaked nasal packing (NP) and intravenous (IV) dexmedetomidine (DEX) for managing bleeding during turbinate surgeries to reduce blood loss and improve surgical field quality. Methods: This randomized, double-blind trial was conducted on 60 patients aged between 18 and 65 years undergoing turbinate surgeries. Patients were randomly assigned into two equal groups: Group NP received DEX-soaked NP (1.5 µg/kg for 10 minutes) and an IV saline bolus followed by saline infusion. Group IV received a 0.5 µg/kg DEX bolus over 10 minutes, followed by a 0.1 - 0.4 µg/kg per hour IV infusion and saline-soaked NP. Results: The mean intraoperative blood loss was 124.1 ± 34.85 mL in group NP and 115.63 ± 31.89 mL in group IV, with no significant difference. Intraoperative hemodynamics, surgical field quality scores, time to first rescue analgesia, total postoperative pethidine consumption, pain score, patient satisfaction, and side effects were comparable. Conclusions: Dexmedetomidine NP is non-inferior to IV DEX for controlling intraoperative bleeding during turbinate surgery. Both methods provided comparable surgical field quality, patient satisfaction, and pain management outcomes.

Impact of dextrose supplementation on intraoperative blood glucose levels in pediatric patients undergoing major surgeries under general anesthesia with caudal analgesia

Abstract Background and Aims: In children undergoing surgery, the stress responses of surgery can result in blood glucose elevation consequent to release of cortisol and catecholamines. The use of a regional block could attenuate the stress responses and lower the blood glucose levels. We compared the blood glucose values at specified time points during surgery with and without additional dextrose to evaluate the need for glucose supplementation as our primary outcome. Intraoperative hemodynamics and the need for any intervention for correction of blood sugars were noted secondarily. Material and Methods: Children aged between 6 months and 8 years undergoing elective major surgery were randomized to group D (received 1% dextrose in Ringer’s lactate) or group P (received only Ringer’s lactate). Blood sugars were measured half hourly for 2 h following intubation, and data was analyzed using Student’s t-test and Chi-square test. Results: Demographic variables and the duration of surgery were comparable. The baseline blood glucose value was lower in group D. Analysis of covariates test for a comparison of adjusted mean blood glucose (MBG) showed the values at 30, 60, and 90 min to be comparable. However, toward the end of surgery, the MBG value was significantly higher in group D (P = 0.019). Heart rate and mean arterial pressure were comparable at the same points of measurement. Conclusion: Dextrose supplementation is not needed for children receiving caudal analgesia for major surgeries of 2–3 h duration and may raise blood sugars at the end of surgery. Key Messages: Caudal analgesia could attenuate the stress response and lower the blood glucose levels. In our study, we observed that children undergoing major surgeries with caudal analgesia do not need supplemental dextrose for correction of hypoglycemia. Additional dextrose could increase blood sugars at the end of surgery.

Successful cutaneous sensory blockade following single-injection and double-injection techniques of ultrasound-guided superficial parasternal intercostal plane block: a randomized clinical trial.

While superficial parasternal intercostal plane blocks can improve analgesia after cardiac surgery, the optimal site and the number of injections remain uncertain. This study aimed to compare the efficacy of single versus double injections of superficial parasternal blocks, hypothesizing that double injections would achieve superior cutaneous sensory blockade. 70 cardiac patients undergoing median sternotomy were randomly assigned to receive either single or double injections of superficial parasternal blocks bilaterally. Each patient received 40 mL of 0.25% bupivacaine with epinephrine 5 µg/mL and dexamethasone 10 mg. The single-injection group received 20 mL/side at the third costal cartilage, while the double-injection group received 10 mL/injection at the second and fourth costal cartilages. The primary outcome was a successful block, defined as sensory loss in the T2-T6 dermatomes. Secondary outcomes included sensory block of T1, T7, and T8 dermatomes, block-related complications, intraoperative hemodynamics, postoperative pain intensity, opioid consumption, and recovery quality. Double injections achieved an overall higher success rate compared with the single-injection technique (81% vs 51%, relative risk 1.6; 95% CI 1.2, 2.0; p<0.001). Additionally, higher blockade percentages were observed in dermatomes T1 (83% vs 59%, p=0.003), T7 (67% vs 46%, p=0.017), and T8 (61% vs 39%, p=0.011) with double injections. Other secondary outcomes did not differ significantly between groups. Compared with single injection, double injections of superficial parasternal blocks provided more reliable coverage of the T2-T6 dermatomes, crucial for median sternotomy. However, no differences were observed in intraoperative hemodynamic effects or postoperative pain control after cardiac surgery. TCTR20230408004.

Effectiveness and Safety of Low-flow Sevoflurane Combined with Remifentanil on Anaesthesia of Patients Undergoing Gynaecological Laparoscopic Surgery

Objective: To evaluate the advantages of sevoflurane (low-flow) + remifentanil for patients undergoing gynaecological laparoscopic surgery. Methods: 300 patients admitted for gynaecological laparoscopic surgery between July 2020 and July 2023 were selected and divided equally by random number table, 150 cases were counted in the observation group, and sevoflurane (low-flow) + remifentanil was chosen for maintenance anaesthesia; 150 cases were counted in the reference group, and anaesthesia was maintained only with remifentanil. The anaesthesia indexes, haemodynamics, stress reaction indexes, and adverse reaction rate of the two groups were compared. Results: The anaesthesia indexes of the observation group were better than those of the reference group (P &lt; 0.05). Before 5 min of anaesthesia (T1), there was no difference between the haemodynamics and stress reaction indexes of the two groups (P &gt; 0.05). After 30 min of pneumoperitoneum (T2) and immediately after the end of surgery (T3), the hemodynamic and stress indicators of the observation group were lower than those of the reference group (P &lt; 0.05). The adverse reaction rate of the observation group was lower than that of the reference group (P &lt; 0.05). Conclusion: Sevoflurane (low-flow) + remifentanil can improve the anaesthesia indexes of gynecological laparoscopic surgery patients, stabilize intraoperative haemodynamics, reduce the stress reaction, and the safety of medication is high.

Cerebral hemodynamic plasticity related to potential compensatory self-recirculation network in Moyamoya disease: an observational study

Moyamoya disease (MMD) suffers from impaired cerebrovascular hemodynamics and high perioperative complications occurrence. This study aims to propose and evaluate the relationship between intraoperative hemodynamics and perioperative complications, and propose a potential compensatory self-recirculation network in MMD. We prospectively enrolled 63 MMD patients undergone combined revascularization, and patients were divided into decreased and increased group according to decreased and increased microvascular transit time (MVTT), respectively. Mean age of all patients was 45.9 ± 9.4 years. The post-bypass hyperperfusion syndrome occurrence was significantly higher in the decreased MVTT group, and the cerebral infarction occurrence was significantly higher in the increased MVTT group. For the hemodynamics of the recipient artery around anastomosis, the parameters of distal site demonstrated a significant higher intensity and shorter time in the decreased MVTT group, while the parameters of the proximal site demonstrated a significant higher intensity and shorter time in the increased MVTT group. Pre-bypass and post-bypass collision of blood flow in artery and vein were firstly observed and illustrated. Intraoperative hemodynamics showed close relationship with perioperative complications. The blood flow of MMD seems to develop a unique compensatory self-recirculation system and contribute to the clinical complications, providing a new insight to the clinical management the pathology of the disease.

Effect of prophylactic infusion of norepinephrine on the prevention of hypotension during vertebroplasty: a randomized clinical trial

BackgroundTransient hypotension is a common occurrence during the implantation of bone cement. This placebo-controlled randomized clinical trial study investigated the effect of prophylactic infusion of norepinephrine on the incidence of hypotension in senior patients who underwent vertebroplasty.MethodsThe trial recruited patients who were greater than or equal to 65 years of age, had an American Society of Anesthesiologist physical status classification of I to III, and underwent vertebroplasty from August 2020 to August 2021 at the Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine in China. The patients were randomly grouped according to whether they received either a norepinephrine infusion of 0.05 µg/kg/min or an equivalent volume of saline 10 min before implantation of bone cement. Intraoperative hemodynamics were monitored continuously by the MostCare system at the following 7 time points: 10 min before implantation of bone cement and immediately, 30 s, 1, 3, 5, and 10 min after implantation of bone cement. We also recorded the number of hypotensive episodes and the total number of vasopressors after implantation of bone cement. Multivariable logistic regression was used to assess the risk factors associated with hypotension after implantation of bone cement.ResultsA total of 63 patients were randomized to the control group (n = 31; median [IQR] age, 74 [69–79] years) and the norepinephrine group (n = 32; median [IQR] age, 75 [71–79] years). The incidence of hypotension in the norepinephrine group was significantly lower than that in the control group after implantation of bone cement (12.5% vs. 45.2%; relative risk [RR], 3.61 [95% CI, 1.13–15.07]; P = 0.005). Moreover, the median (IQR) number of hypotensive episodes (0 [0–0] vs. 0 [0–2]; P = 0.005) and the total number of vasopressors (0 [0–0] vs. 0 [0–1]; P = 0.004) in the norepinephrine group were significantly lower than those in the control group. Furthermore, compared with the baseline, the MAP significantly decreased at 1 min (P = 0.007) and 3 min (P < 0.001) after bone cement implantation in the control group. However, the MAP at 3 min in the norepinephrine group was significantly higher than that in the control group (P < 0.001). The incidence of complications was not different between the groups. In multivariable logistic regression, the FRAIL score (OR, 2.29; 95% CI, 1.21–4.31) was identified as a risk factor associated with hypotension.ConclusionProphylactic infusion of norepinephrine before bone cement implantation can stabilize hemodynamics and reduce the incidence of hypotension after implantation of bone cement.

Comparative analysis of the therapeutic efficacy of remimazolam tosylate and propofol in older adults undergoing painless endoscopic retrograde cholangiopancreatography.

The aim of this study is to conduct a comparative analysis of the therapeutic outcomes associated with the administration of remimazolam and propofol during painless endoscopic retrograde cholangiopancreatography (ERCP) procedures in older adults. A total of 140 older adults who underwent elective painless ERCP were randomly assigned to two groups using the random number table method: the remimazolam group and the propofol group, each consisting of 70 patients. In the remimazolam group, anesthesia was administered using a combination of remimazolam and opioids, while in the propofol group, a combination of propofol and opioids was used. Comparative assessments between the two groups included anesthesia induction time, first induction success rate, intraoperative hemodynamics, awakening duration, stress response index, and the incidence of adverse reactions. The remimazolam group exhibited a prolonged anesthesia induction time compared to the propofol group and a lower success rate of first induction (P < 0.05). At the point of endoscope entry (T2) and 10min post-operation (T3), patients in the remimazolam group demonstrated higher mean arterial pressure (MAP), heart rate (HR), and bispectral index (BIS) values compared to those in the propofol group (P < 0.05). Furthermore, the remimazolam group had shorter durations for eye-opening, consciousness recovery, and residence in the recovery room compared to the propofol group (P < 0.05). Post-surgery levels of epinephrine (E), norepinephrine (NE), and cortisol (Cor) at 24h were lower in the remimazolam group than in the propofol group (P < 0.05). The incidence of adverse reactions was significantly lower in the remimazolam group (18.57%) compared to the propofol group (31.43%) (P < 0.05). Remimazolam exhibits a longer induction time compared to propofol in the painless diagnosis and treatment of ERCP in older adults. However, it provides a more stable circulatory state post-induction and throughout the operation, reduces stress response, enables rapid recovery, and has a lower incidence of serious adverse reactions. These attributes suggest that remimazolam has potential for widespread clinical application and adoption. clinicaltrials.gov, identifier ChiCTR2400080926.

A comparative study between dexmedetomidine and dexamethasone as adjuvants to bupivacaine in ultrasound guided interscalene block for arthroscopic shoulder surgery

Background &amp; Objectives: Arthroscopic surgery is a preferred approach for shoulder surgeries due to its documented advantages of early postoperative recovery. However, postoperative pain remains a concern for which different techniques are used. Interscalene block (ISB), using dexmedetomidine (DXM) or dexamethasone (DXA) as adjuvants to local anesthetics (LA), is a common analgesic method. We conducted this comparative study to establish if any one of the adjuvants is better in terms of postoperative analgesia. Methodology: Patients undergoing shoulder arthroscopy were assigned randomly to three groups: Group A (LA alone), Group B (ISB with DXM), and Group C (ISB with DXA). Assessment of intraoperative and postoperative hemodynamics, visual analog scale (VAS) pain scores, time to first rescue analgesic, and rescue analgesic (ketorolac) consumption were recorded. Results: Intraoperative and postoperative heart rate and mean arterial pressure showed no significant differences among the three groups, suggesting comparable hemodynamic control. VAS pain scores were equivalent at 1, 2 and 6 h postoperatively, but at 12, 18 and 24 h, Groups B and C demonstrated significantly lower scores compared to Group A (P &lt; 0.001). Time to first rescue analgesic was prolonged in Groups B and C, indicating improved and longer-lasting analgesia. Groups B and C consumed considerably less ketorolac overall than Group A (P &lt; 0.001). Conclusion: While all three groups exhibited equivalent intraoperative and postoperative hemodynamic control, the addition of dexmedetomidine or dexamethasone to local anesthetics for interscalene block prolonged postoperative analgesia, reduced pain scores at 12, 18 and 24 h, delayed time to first rescue, and decreased total analgesic consumption. Both adjuvants showed advantages over local anesthetics alone, emphasizing their potential in multimodal analgesia for shoulder arthroscopy. Abbreviations: ISB - Interscalene block; DXM - Dexmedetomidine; DXA - Dexamethasone; HR – Heart Rate; MAP – Mean Arterial Pressure; VAS Visual Analog Scale. Trial registry: PACTR202210507488378 Keywords: Analgesia; Analgesia, postoperative; Dexmedetomidine; Dexamethasone; Interscalene block; Pain, postoperative; Shoulder arthroscopy Citation: Nashaat P, Mohamed O, George S, Mohammed A, Samy E. A comparative study between dexmedetomidine and dexamethasone as adjuvants to bupivacaine in ultrasound guided interscalene block for arthroscopic shoulder surgery. Anaesth. pain intensive care 2024;28(5):850−858; DOI: 10.35975/apic.v28i5.2566 Received: June 13, 2024; Reviewed: June 20, 2024; Accepted: July 18, 2024

Comparison of oral pre-medication with clonidine and metoprolol on intraoperative hemodynamics and surgical conditions during functional endoscopic sinus surgery

Background: Functional endoscopic sinus surgery (FESS) is one of the most performed surgical procedures and requires minimal bleeding during the procedure. The success of surgeries is largely dependent on the surgical field, where the presence of significant bleeding is an important factor. Aims and Objectives: The objectives of this study were to evaluate the clinical efficacy of oral clonidine and metoprolol following their pre-medication for induced hypotension during FESS and to assess hemodynamic stability, surgical field quality, and sedation score. Materials and Methods: This is an observational hospital-based study conducted on 60 patients, aged 18–60 years old for FESS assigned by randomization method in two groups including clonidine or metoprolol. Heart rate (HR) and arterial blood pressure are measured after induction, during and end of the surgery. Assessment of bleeding was done by a surgeon who was blinded. Surgical field quality, satisfaction level of the surgeon, Aldrete score, and any side effects were observed. Results: There was no significant difference seen in HR in patients of Group C and Group M in the pre-operative period, after loading the dose of the drug, at extubation (P&gt;0.05). A significant difference was seen in HR with lower mean values in Group C compared to Group M after induction (77.23±12.23), 10 min after induction (69.47±11.99), 20 min after induction (65.63±8.66), 30 min after induction (64±8.32), 40 min after induction (63.77±7.61), and 60 min after induction (63.63±7.89). A significant difference was seen in blood pressure, after loading the dose of the drug, after induction, during surgery monitored every 10 min, at extubation, after extubation monitored every hour for 6 h. Quality of surgical field and surgeon’s satisfaction was better in patients who received clonidine than in those who received metoprolol. Conclusion: Both clonidine and metoprolol can be effectively used for induced hypotension in FESS. Clonidine is better than metoprolol with respect to intraoperative hemodynamics, quality of the surgical field, and surgeon’s satisfaction with the added advantage of sedation, reduced analgesia requirement, and other anesthetic drugs.

Using a Dexmedetomidine as an Opiates Reducing Agent in Laparoscopic Abdominal Surgeries

Abstract Background The analgesic, sympatholytic, and respiratory-sparing effects of α2-agonists present a tempting option in laparoscopic abdominal surgeries. In this trial, the benefit of perioperative administration of dexmedetomidine in laparoscopic abdominal surgeries has been studied. Objective To evaluate the efficacy of dexmedetomidine infusion in patients undergoing laparoscopic abdominal surgeries as an opiates reducing agent according to the intraoperative hemodynamics and postoperative opioid analgesic rescue. Patients and Methods We conducted a double blinded 2-arms parallel controlled trial in Ain Shams University Hospitals. Sixty patients were randomly divided into two groups (30 patients in each group). Patients of group (A) received dexmedetomidine infusion 0.7 mcg/kg as a loading dose, followed by 0.2 mcg/kg/h as a maintenance intraoperative dose. Postoperative dose was 0.1 mcg/kg/h for 24 hours. Patients of group (B) received an infusion of saline without dexmedetomidine, using similar infusion sets, similar rate intraoperatively and postoperatively. Results Mean intraoperative SBP, DBP, and heart rate were all significantly lower in the dexmedetomidine group (P &amp;lt; 0.001). Significantly fewer patients in the dexmedetomidine group needed nitroglycerin to treat surges in SBP exceeding 20% of baseline level (P &amp;lt; 0.05), while more patients in this group required ephedrine to treat drops of SBP that exceeded 20% of baseline level (P &amp;gt; 0.05). Patients in the dexmedetomidine group consumed significantly less pethidine postoperatively (P &amp;lt; 0.001). Likewise, postoperative pain scores were significantly less in the dexmedetomidine group at recovery (P &amp;lt; 0.001), 2 h (P &amp;lt; 0.001), 4 h (P &amp;lt; 0.001), 8 h (P &amp;lt; 0.001), 12 h (P &amp;lt; 0.001), and 24 h (P &amp;lt; 0.001). On the other hand, patients in the dexmedetomidine group had significantly higher postoperative sedation scores at 4 h (P &amp;lt; 0.001), 8 h (P &amp;lt; 0.001), 12 h (P &amp;lt; 0.001), and 16 h (P &amp;lt; 0.001). Mean postoperative SBP, DBP, and heart rate were significantly less in the dexmedetomidine group (P &amp;lt; 0.001, P &amp;lt; 0.01, and P &amp;lt; 0.001, respectively). Surgeon satisfaction score was significantly higher in the dexmedetomidine group (P &amp;lt; 0.001). Postoperatively, there were no statistically significant differences between the two groups as regards arterial blood gases and bowel recovery (P &amp;gt; 0.05). Conclusion In patients undergoing laparoscopic abdominal surgeries, dexmedetomidine infusion was associated with significantly less intraoperative and postoperative SBP, DBP, MAP, heart rate, pain scores, and pethidine consumption. However, dexmedetomidine was associated with significantly higher postoperative sedation scores, with no ill-effect on ventilation. Further studies are recommended to validate the role of perioperative dexmedetomidine in laparoscopic abdominal surgeries.

Impact of anesthesiologist experience on neuraxial anesthesia outcomes in cesarean sections.

Despite the requirement for meticulous management of cesarean anesthesia, no study has explored the impact of novice trainee anesthesiologists in this field. This study assessed challenges in neuraxial anesthesia for cesarean sections and compared outcomes between novice and senior anesthesiologists. We retrospectively analyzed 446 cesarean sections with neuraxial anesthesia. The primary objective was to evaluate the impact of anesthesiologists' experience on the time required to administer neuraxial anesthesia and whether maternal body mass index (BMI) influenced this relationship. Secondary objectives included examining maternal hemodynamic variability, operative details, and newborn outcomes relative to the anesthesiologist's experience. Novice anesthesiologists required a significantly longer time to perform neuraxial anesthesia (24.9 [7.1] min vs. 18.2 [7.0] min, P<0.001) than their senior counterparts. A significant interaction was observed between anesthesiologist experience and maternal BMI on the time to administer neuraxial anesthesia (P=0.017), with a moderate correlation between BMI and administration time for novices (r=0.50, P<0.001) and only a slight correlation for seniors (r=0.17, P=0.001). Experience level did not significantly affect intraoperative hemodynamics, Apgar scores, or umbilical cord blood gas analyses. The effect of maternal BMI on the difficulty of performing neuraxial anesthesia in parturients can be more pronounced for novice anesthesiologists than for experienced ones. Despite requiring more time to perform neuraxial anesthesia, novice anesthesiologists do not significantly affect maternal hemodynamics or newborn distress during obstetric anesthesia, provided that they are under the supervision of experienced anesthesiologists.

Ultrasound-Based Cardiac Output Monitoring During Pediatric Open-Heart Surgery in Children

Aim of the study. To evaluate the feasibility of using non-invasive hemodynamic monitoring technology based on Doppler ultrasound during open-heart surgery in children.Material and methods. Prospective, observational, single-center cohort study included 20 patients aged 10 to 34 months undergoing surgery for congenital heart defects. Ten patients underwent atrial septal defect closure (ASD group), other 10 patients had ventricular septal defect closure (VSD group). Cardiac output (CO) was measured in all patients to guide inotropic and infusion therapy adjustments at three control time points: (1) after intubation and before skin incision, (2) during the immediate post-bypass period with the chest open after weaning from cardiopulmonary bypass (CPB), and (3) after sternal closure and before transfer to the intensive care unit (ICU).Results. At time point 1, the CO values for both the ASD and VSD groups were within the normal reference range: 5.2 L/min [4.7; 5.5] and 5.1 L/min [4.6; 5.6], respectively. At time point 2, CO was measured in 15 of 20 patients, including 8 patients in the ASD group and 7 in the VSD group. Coverage was 75% because of the challenges of measuring 5 patients on the operating table. In the immediate post-bypass period, two patients with VSD (25%) developed hypotension with CO reduced to 3.6 L/min, which is lower than the age-related hemodynamic reference value (5.1 L/min). Inotropic support in these two patients was increased by switching from dopamine, 7 mcg/kg/min, to adrenaline at a dose of 0.05 mcg/kg/min, resulting in improvement of hemodynamic parameters and an increase in CO to 5.2 L/min and 5.0 L/min, respectively, compared to normal agerelated reference values (4.1; 6.1 L/min). After sternal closure, CO values in both groups did not differ significantly from age-related reference values.Conclusion. The USCOM cardiac output monitoring device can be used to manage intraoperative hemodynamics and adjust inotropic therapy even during open chest surgery. However, its routine use in all stages of surgery with median sternotomy is difficult because it requires more time to align the aortic valve projection.

Erector Spinae Plane Block Combined with Continuous Dexmedetomidine and Lidocaine Infusions as an Opioid-Free Anesthesia in Posterior Spinal Fusion Surgery

Abstract Background Lumbar spine surgery is a common type of orthopedic surgery and mostly elective in nature. Conventional spine surgeries (non-minimally invasive) often involve extensive dissection of subcutaneous tissues, bones, and ligaments, laminectomies, discectomies, and instrumentations thus result in a considerable degree of postoperative pain, that can hinder the postoperative recovery, and it includes a high risk of persistent postsurgical pain, with a frequency ranging from 20 % to 40%. Aim of the Work We aim to assess intraoperative variation of heart rate (HR) and systolic blood pressure (SBP) as a monitor to guide the antinociceptive component of OFA and if it can provide adequate hemodynamic control and stability during the perioperative period with the impact on patient satisfaction. Patients and Methods This interventional, randomized and double–blinded controlled trial study was conducted in the institute Hospitals, Ain Shams University Hospitals from 1 February, 2023 to 31 July, 2023. The purpose of the study was clarified to all patients in full detail, along with details of the anaesthesia technique to be used by both the surgeon and anaesthetist. Moreover, informed consent was signed by all patients who were scheduled for lumbar spine procedures on any levels between L1 and L5. Subjects were eliminated from the study if they refused to participate, were unable to evaluate their level of pain or had an allergy to the study drugs. Results Our results indicate that there were no significant differences in SBP and episodes of hypertension between the two groups during various stages of the surgical procedure. However, HR values showed less fluctuations in OFA group starting from after skin incision and throughout different stages of the surgery. Our population who are at high risk of postoperative nausea and vomiting due to previous opioid use on chronic back pain. In our study, incidence of PONV in group OFA was lower than that of in group OA in a period of 24h after surgery (5.7%, 15.7%). Conclusion Compared to OA technique, OFA technique, which is represented by non-opioid drugs, lidocaine and dexmedetomidine, may be an alternative anesthesia in patients undergoing posterior lumbar spine fusion surgery. With its non-inferiority of analgesic effect, safe anesthesia, and lower incidence of intraoperative hemodynamics fluctuations and PONV.

Impact of staged goal-directed fluid therapy on postoperative pulmonary complications in patients undergoing McKeown esophagectomy: a randomized controlled trial

BackgroundOur aim was to evaluate the influence of staged goal directed therapy (GDT) on postoperative pulmonary complications (PPCs), intraoperative hemodynamics and oxygenation in patients undergoing Mckeown esophagectomy.MethodsPatients were randomly divided into three groups, staged GDT group (group A, n = 56): stroke volume variation (SVV) was set at 8–10% during the one lung ventilation (OLV) stage and 8–12% during the two lung ventilation (TLV) stage, GDT group (group B, n = 56): received GDT with a target SVV of 8–12% During the entire surgical procedure, and control group (group C, n = 56): conventional fluid therapy was administered by mean arterial pressure (MAP), central venous pressure (CVP), and urine volume. The primary outcome was the incidence of postoperative pulmonary complications within Postoperative days (POD) 7. The secondary outcomes were postoperative lung ultrasound (LUS) B-lines artefacts (BLA) scoring, incidence of other complications, the length of hospital stay, intraoperative hemodynamic and oxygenation indicators included mean arterial pressure (MAP), heart rate (HR), cardiac index (CI), cardiac output (CO), oxygenation index (OI), respiratory indices (RI), alveolar-arterial oxygen difference (Aa-DO2).ResultsPatients in group A and group B had a lower incidence of PPCs (7/56 vs. 17/56 and 9/56 vs. 17/56, p < 0.05), and a fewer B-lines score on postoperative ultrasound (4.61 ± 0.51 vs. 6.15 ± 0.74 and 4.75 ± 0.62 vs. 6.15 ± 0.74, p < 0.05) compared to group C. The CI, CO, MAP, and OI were higher in group A compared to group B and group C in the stage of thoracic operation. During the abdominal operation stage, patients in group A and group B had a better hemodynamic and oxygenation indicators than group C.ConclusionsIn comparison to conventional fluid therapy, intraoperative staged GDT can significantly reduce the incidence of postoperative pulmonary complications in patients undergoing McKeown esophagectomy, facilitating patient recovery. Compared to GDT, it can improve intraoperative oxygenation and stabilize intraoperative hemodynamics in patients.Trial registrationThis study was registered in the Chinese Clinical Trial Registry on 24/11/2021 (ChiCTR2100053598).

Surgical Apgar Score and Controlling Nutritional Status Score can be predictors of major postoperative complications after spine surgery

Assessing intraoperative hemodynamics with Surgical Apgar Score (SAS) and preoperative nutritional status with the Controlling Nutritional Status (CONUT) score are said to be useful to predict postoperative complications in many surgical services, but little is reported in the field of spinal surgery. The purpose of this study was to assess the utility of SAS and the CONUT score for predicting the risk of major postoperative complications after spinal surgery. We included 659 people who undergone spinal surgery in our institute in eight consecutive years. The occurrence of postoperative major complications was investigated. Background clinical information, surgical information including the SAS and the CONUT score, and the length of postoperative hospital stay were collected. The risk factors of postoperative complications were assessed statistically. Complications occurred in 117 cases (17.8%). The multivariate analysis showed that history of diabetes mellitus (odds ratio [OR] 1.81: P = 0.035), coronary disease (OR 3.33; P = 0.009), American Society of Anesthesiologists Physical Status (OR 1.71; P = 0.025), use of instruments (OR 2.07; P = 0.026), operation time (OR 1.30; P < 0.001), SAS (OR 0.59; P < 0.001), and CONUT (OR 1.34; P < 0.001) were independent risk factors of major complications after spinal surgery. Assessing the intraoperative hemodynamics with SAS and preoperative nutritional status with the CONUT score was useful in predicting major postoperative complications after spinal surgery. People who are detected as high risked people should be managed carefully after spinal surgery.

Perioperative anesthetic management of patients with hypoplastic left heart syndrome undergoing the comprehensive stage II surgery-A review of 148 cases.

Patients with hypoplastic left heart syndrome undergo the comprehensive stage 2 procedure as the second stage in the hybrid approach toward Fontan circulation. The complexity of comprehensive stage 2 procedure is considered a potential limitation, and limited information is available on its anesthetic management. This study aims to address this gap. A single-center retrospective cohort study analyzed 148 HLHS patients who underwent comprehensive stage 2 procedure, divided into Group A (stable condition, n = 116) and Group B (requiring preoperative intravenous inotropic therapy, n = 32). Demographic data, intraoperative hemodynamics, anesthetic management, and postoperative outcomes were collected. Etomidate (40%) was the most common induction agent, followed by esketamine (24%), midazolam (16%), and propofol (13%). Inhaled induction was rarely necessary (2%), occurring only in Group A patients. No statistical differences were found between groups for induction drug choice. Post-cardiopulmonary bypass management included moderate hypoventilation, inhaled nitric oxide (100%), and hemodynamic support with milrinone (97%) and norepinephrine (77%). Group B patients more frequently required additional levosimendan (20%) and epinephrine (18%). Extracorporeal membrane oxygenation was necessary in 8 patients (5%) with no between-group differences. Switching from fentanyl to remifentanil reduced postoperative ventilation time overall. However, Group B experienced significantly longer ventilation (6.3 vs. 3.5 h) and ICU stay (22 vs. 14 days). In-hospital mortality was 5% overall (Group A: 4%, Group B: 9%). Long-term survival analysis revealed a significant advantage for Group A. The use of short-acting opioids and adjusted ventilation modes enables optimal pulmonary blood flow and rapid transition to spontaneous breathing. Differentiated hemodynamic support with milrinone, norepinephrine, supplemented by levosimendan and epinephrine in high-risk patients, can mitigate the effects on the preoperatively volume-loaded right ventricle. However, differences in long-term survival probability were observed between groups. Local ethics committee, Medical Faculty, Justus-Liebig-University-Giessen (Trial Code Number: 216/14).

Comparative Analysis of Oral Clonidine Versus Oral Gabapentin on Subarachnoid Block Duration and Postoperative Analgesic Needs.

Pain, an inherently subjective experience, plays a pivotal role in the body's defence mechanism by signalling tissue damage or potential harm. Thus, optimal postoperative pain management is a cornerstone of modern surgical practice, essential for improving recovery outcomes and overall patient well-being. In this study, a total of 60 patients were randomly assigned to two groups of 30 each: Group C (clonidine) and Group G (gabapentin). Group C received oral clonidine 100 mcg and Group G received oral gabapentin600 mg one hour prior to the subarachnoid block. Duration of sensory and motor block, hemodynamic parameters, Visual Analog Scale (VAS) scores, time to rescue analgesia and any side effect of both drugs were assessed in both groups. The duration of motor and sensory blockade, as well as intraoperative hemodynamics and respiratory rates, were comparable between the two groups. Group G exhibited significantly lower VAS scores from 150 minutes postoperatively up to 12 hours (p < 0.001). Additionally, Group G experienced longer duration of postoperative analgesia (16.8±3.9 hours) compared to Group C (9.27±1.7 hours). About 26.6% of the patients in Group C and 6.7% of the patients in Group G presented with postoperative nausea and vomiting (PONV). Oral gabapentin at a dosage of 600 mg demonstrates superior efficacy as a premedication compared to oral clonidine 100 mcg for patients undergoing lower abdominal and lower limb surgeries under spinal anesthesia. Group G demonstrated extended postoperative analgesia, lower VASscores, and a reduced incidence of PONV, indicating its superiority over clonidine as an analgesic adjunct.

The creation of a pediatric surgical checklist for adult providers

PurposeTo address the need for a pediatric surgical checklist for adult providers.BackgroundPediatric surgery is unique due to the specific needs and many tasks that are employed in the care of adults require accommodations for children. There are some resources for adult surgeons to perform safe pediatric surgery and to assist such surgeons in pediatric emergencies, we created a straightforward checklist based on current literature. We propose a surgical checklist as the value of surgical checklists has been validated through research in a variety of applications.MethodsLiterature review on PubMed to gather information on current resources for pediatric surgery, all papers on surgical checklists describing their outcomes as of October 2023 were included to prevent a biased overview of the existing literature. Interviews with multiple pediatric surgeons were conducted for the creation of a checklist that is relevant to the field and has limited bias.ResultsForty-two papers with 8,529,061 total participants were included. The positive impact of checklists was highlighted throughout the literature in terms of outcomes, financial cost and team relationship. Certain care checkpoints emerged as vital checklist items: antibiotic administration, anesthetic considerations, intraoperative hemodynamics and postoperative resuscitation. The result was the creation of a checklist that is not substitutive for existing WHO surgery checklists but additive for adult surgeons who must operate on children in emergencies.ConclusionThe outcomes measured throughout the literature are varied and thus provide both a nuanced view of a variety of factors that must be taken into account and are limited in the amount of evidence for each outcome. We hope to implement the checklist developed to create a standard of care for pediatric surgery performed in low resource settings by adult surgeons and further evaluate its impact on emergency pediatric surgery outcomes.FundingFulbright Fogarty Fellowship, GHES NIH FIC D43 TW010540.

Effect of non-invasive bilateral sphenopalatine ganglion block on postoperative pain in patients undergoing septorhinoplasty surgery: a randomized controlled study.

The objective of this study was to assess the impact of preoperative sphenopalatine ganglion block (SPGB) on postoperative pain and assess intraoperative and postoperative analgesic consumption in patients undergoing septorhinoplasty. In this prospective, randomized controlled study, 72 patients were included and divided into two groups: group 1 (36 patients) received the sphenopalatine ganglion block (SPGB), while group 2 (36 patients) served as the control group. Patient assessments, using the numerical rating scale (NRS), were conducted at the postoperative first hour, fourth hour, and 24th hour. Additionally, intraoperative hemodynamics, analgesic requirements, and postoperative analgesic requirements were documented. The patients in group 1 exhibited significantly lower NRS scores at postoperative first, fourth, and 24th hour than those in group 2 (P<0.001 for all three time points). Additionally, the mean Riker Sedation-Agitation Scale (RSAS) scores were significantly lower in group 1 than in group 2 (P=0.006). Both intraoperative remifentanil use and postoperative analgesic consumption were significantly higher in patients in group 2 (P<0.001 and 0.004, respectively) than those in group 1. Analysis of intraoperative heart rate and mean arterial pressure (MAP) revealed that patients in group 1 had lower postoperative heart rates (P=0.040) than those in group 2, and MAP values after intraoperative block, at 30 min, and postoperatively were significantly lower (P=0.005, P=0.001, and P=0.034, respectively) than those in group 2. We advocate for the adoption of the noninvasive SPGB method in patients undergoing septorhinoplasty surgery. This approach significantly reduces the need for intraoperative analgesics, alleviates postoperative pain, and reduces the demand for postoperative analgesics. Moreover, it improves the overall surgical experience because of its ease of application, contributing to a more comfortable surgical process.

Opioid-Free Using Ketamine versus Opioid-Sparing Anesthesia during the Intraoperative Period in Video-Assisted Thoracoscopic Surgery: A Randomized Controlled Trial.

Opioids effectively manage perioperative pain but have numerous adverse effects. Opioid-free anesthesia (OFA) eliminates intraoperative opioid use; however, evidence for its use in video-assisted thoracoscopic surgery (VATS) is limited. This study assessed the effect of OFA using ketamine in VATS patients compared to opioid-sparing anesthesia (OSA). A total of 91 patients undergoing VATS lobectomy or segmentectomy were randomized to either the OFA group (ketamine) or the OSA group (remifentanil). The primary outcome was the quality of recovery (QoR) on postoperative day (POD) 1, measured with the QoR-40 questionnaire. Secondary outcomes included postoperative pain scores and adverse events. Both groups had comparable baseline and surgical characteristics. On POD 1, the QoR-40 score was higher in the OFA group than in the OSA group (164.3 ± 10.8 vs. 158.7 ± 10.6; mean difference: 5.6, 95% CI: 1.1, 10.0; p = 0.015), though this did not meet the pre-specified minimal clinically important difference of 6.3. The visual analog scale score was lower in the OFA group as compared to the OSA group at 0-1 h (4.2 ± 2.3 vs. 6.2 ± 2.1; p < 0.001) and 1-4 h after surgery (3.4 ± 1.8 vs. 4.6 ± 1.9; p = 0.003). The OFA group had a lower incidence of PONV (2 [4.4%] vs. 9 [19.6%]; p = 0.049) and postoperative shivering (4 [8.9%] vs. 13 [28.3%]; p = 0.030) than the OSA group at 0-1 h after surgery. Using OFA with ketamine proved feasible, as indicated by the stable intraoperative hemodynamics and absence of intraoperative awareness. Patients undergoing VATS with OFA using ketamine showed a statistically significant, but clinically insignificant, QoR improvement compared to those receiving OSA with remifentanil.