Desflurane Inhalation Research Articles

Impact of propofol versus desflurane anesthesia on postoperative hepatic and renal functions in infants with living-related liver transplantation: a randomized controlled trial

BackgroundThe effects of anesthetics on liver and kidney functions after infantile living-related liver transplantation (LRLT) are unclear. This study aimed to investigate the effects of propofol-based total intravenous anesthesia (TIVA) or desflurane-based inhalation anesthesia on postoperative liver and kidney functions in infant recipients after LRLT and to evaluate hepatic ischemia–reperfusion injury (HIRI).MethodsSeventy-six infants with congenital biliary atresia scheduled for LRLT were randomly divided into two anesthesia maintenance groups: group D with continuous inhalation of desflurane and group P with an infusion of propofol. The primary focus was to assess alterations of liver transaminase and serum creatinine (Scr) levels within the first 7 days after surgery. And the peak aminotransferase level within 72 h post-surgery was used as a surrogate marker for HIRI.ResultsThere were no differences in preoperative hepatic and renal functions between the two groups. Upon the intensive care unit (ICU) arrival, the levels of aspartate aminotransferase (AST, P = 0.001) and alanine aminotransferase (ALT, P = 0.005) in group P were significantly lower than those in group D. These changes persisted until the fourth and sixth days after surgery. The peak AST and ALT levels within 72 h after surgery were also lower in group P than in group D (856 (552, 1221) vs. 1468 (732, 1969) U/L, P = 0.001 (95% CI: 161–777) and 517 (428, 704) vs. 730 (541, 1100) U/L, P = 0.006, (95% CI: 58–366), respectively). Patients in group P had lower levels of Scr upon the ICU arrival and on the first day after surgery, compared to group D (17.8 (15.2, 22.0) vs. 23.0 (20.8, 30.8) μmol/L, P < 0.001 (95% CI: 3.0–8.7) and 17.1 (14.9, 21.0) vs. 20.5 (16.5, 25.3) μmol/L, P = 0.02 (95% CI: 0.0–5.0) respectively). Moreover, the incidence of severe acute kidney injury was significantly lower in group P compared to that in group D (15.8% vs. 39.5%, P = 0.038).ConclusionsPropofol-based TIVA might improve liver and kidney functions after LRLT in infants and reduce the incidence of serious complications, which may be related to the reduction of HIRI. However, further biomarkers will be necessary to prove these associations.

Justification of the expediency of using harmless analgesia in bariatric surgery: prospective randomized study

BACKGROUND: The presence of various comorbid conditions in patients with obesity increases operational risk, and high sensitivity to sedatives and opioid drugs can contribute to their aggravation.&#x0D; OBJECTIVE: To compare and evaluate two methods of perioperative analgesia, namely, multimodal without opioid and non-opioid when performing longitudinal gastric resection for patients with morbid obesity using the enhanced recovery after surgery protocol.&#x0D; MATERIALS AND METHODS: A prospective randomized study of patients with morbid obesity was conducted. Depending on the type of analgesic component of anesthesia, the patients are divided into two groups. In both groups, low-flow desflurane inhalation was used; in group 1 (n=30), the technique of non-opioid analgesia was used, which included intraoperative infusion of ketamine, dexmedetomidine, lidocaine, and magnesium sulfate. In group 2 (n=30), traditional combined anesthesia using fentanyl was administered. In the postoperative period, the infusion of the above drugs continued for 10 h in group 1. Central and peripheral hemodynamic parameters, and the depth of anesthesia were studied, and TOF-monitoring was carried out. Postoperative rehabilitation was assessed based on the time of extubation, achievement of 13 points on the PARS scale, first getting up on ones feet, appearance of overstrain, and gas discharge. Postoperative analgesia was assessed on a 10-point visual analog scale, and anesthesia-related complications were recorded.&#x0D; RESULTS: Surgical intervention under low-flow inhalation anesthesia based on desflurane in combination with multimodal opioid-free analgesia reduced the need for opioid analgesics intraoperatively (in group 1, the fentanyl dose was 0.2 [01; 0.2] mg; in group 2 0.4 [0.3; 0.5] mg; p=0.002), provided less fluctuation of intraoperative hemodynamic parameters (AvBP: stage 1: group 1 102 [100; 103]; group 2 102 [98; 105], p=0.96; stage 2: group 1 93 [90; 95]; group 2 96 [93; 99], p=0.003; stage 3: group 1 95 [95; 97]; group 2 100 [96; 102], p 0.001; stage 4: group 1 95 [92; 97]; group 2 98 [98; 101], p 0.001; CI stage 1: group 1 492.2; group 2 49.52.2, p=0.39; stage 2: group 1 44.42; group 2 44.62.1, p=0.26; stage 3: group 1 45.52.11; group 2 50.62.8, p=0.001; stage 4: group 1 44.52.1; group 2 48.82.5 p 0.001), and contributed to a lower level of pain and faster rehabilitation. In addition, anesthesia-related complications such as postoperative nausea and vomiting, hypoxemia, and dysphoria were less frequently recorded.&#x0D; CONCLUSION: The use of multimodal non-opioid analgesia contributes to a lesser fluctuation in hemodynamic parameters, a low level of postoperative pain, early activation of patients and restoration of peristalsis, and a decrease in the number of postoperative complications in patients who underwent longitudinal gastric resection for morbid obesity.

Hemodynamic responses to 1 MAC desflurane inhalation during anesthesia induction with propofol bolus and remifentanil continuous infusion: a prospective randomized single-blind clinical investigation

BackgroundDesflurane is not recommended during anesthesia induction because of its sympathetic stimulation effect, particularly in patients with myocardial ischemic disease. To date, the hemodynamic response to 1 MAC desflurane inhalation in combination with remifentanil infusion during anesthesia induction has rarely been reported.MethodsThis investigation was designed to compare hemodynamic responses to 1 MAC desflurane (group D, n = 200) with sevoflurane (group S, n = 200) during anesthesia induction and endotracheal intubation in adult patients undergoing elective spine surgery. Subgroup analysis of the different age subgroups was also performed. With continuous infusion of remifentanil 0.1 μg/kg/min, anesthesia was induced with propofol bolus, and endotracheal intubation was performed after muscle relaxation. Heart rate (HR) and mean arterial blood pressure (MAP) were measured every minute for 5 min after anesthesia induction (T1-5) and after endotracheal intubation (T6-10).ResultsHR was significantly higher in group D (n = 182) than in group S (n = 173) at T3-10 except at T6 (1 min after intubation) (all P < 0.05). In the age-based subgroup analyses, which subdivided the group D and S into four subgroups based on patient’s age, the changes in HR from baseline values were significantly different between the coeval subgroups of patients in their 20–29 years and 30–39 years of age (all P < 0.05). MAP was reduced from baseline value, irrespective of group and age.ConclusionInhalation of 1 MAC desflurane during anesthesia induction with propofol bolus and remifentanil continuous infusion and during endotracheal intubation was more likely to induce elevations in HR more likely than 1 MAC sevoflurane, especially in younger patients.Trial registrationThis study was registered in the Clinical Research Information Service (CRIS, http://cris.nih.go.kr) of the Republic of Korea on Feb 12, 2016 (Registration No. KCT 0,001,813).

Effects of Ketamine Infusion on Oxygenation in Patients with Chronic Obstructive Pulmonary Disease Undergoing Lung Cancer Surgery.

Ketamine changes respiratory mechanics, provides airway relaxation, and alleviates bronchospasm in patients with pulmonary disease. This study investigated the effect of a continuous infusion of ketamine during thoracic surgery on arterial oxygenation (PaO2/FiO2) and the shunt fraction (Qs/Qt) in patients with chronic obstructive pulmonary disease. Thirty patients older than 40 years, diagnosed with chronic obstructive pulmonary disease, and undergoing lobectomy were recruited for this study. Patients were allocated randomly to 1 of 2 groups. At the induction of anaesthesia, group K received intravenous (iv) 1 mg kg-1 ketamine as a bolus and followed by 0.5 mg kg-1 h-1 infusion until the end of the operation. Group S received the same amount of 0.9% saline as a bolus at induction and followed by a 0.5-mL kg-1 h-1 infusion of 0.9% saline until the end of the operation. PaO2 and PaCO2 values, FiO2 levels, PaO2/FiO2 ratio, peak airway pressure (Ppeak), plateau airway pressure (Pplat), dynamic compliance, and shunt fraction (Qs/Qt) were recorded during two-lung ventilation as a baseline and at 30 (one-lung ventilation, OLV-30) and 60 (OLV-60) minutes during one-lung ventilation. PaO2, PaCO2, PaO2/FiO2 values, and Qs/Qt ratio were similar between the 2 groups at OLV-30 minute (P = .36, P = .29, P = .34). However, at OLV-60 minute, PaO2, PaO2/FiO2 values were significantly increased, and Qs/Qt ratios were significantly decreased in group K than in group S (P = .016, P = .011, P = .016). Our data suggest that a continuous infusion of ketamine and desflurane inhalation in patients with chronic obstructive pulmonary disease during one-lung ventilation increase arterial oxygenation (PaO2/FiO2) and decrease shunt fraction.

Specific features of Infusion Therapy in Bariatric Surgery

The objective: to determine principles of intraoperative infusion therapy in patients with morbid obesity under the control of volemic status. Methods: a prospective randomized study was conducted in 60 patients with BMI of 45.57 (40.01; 48.65) k g/m 2 who underwent laparoscopic gastric resection under combined anesthesia based on lo w-f low desflurane inhalation in combination with prolonged epidural analgesia with ropivacaine. Patients were allowed to consume 200 ml of clear liquid 3 hours before the surgery, and solid foods 6 hours before surgery. Patients were divided into 2 groups ( n = 30) depending on the composition of infusion therapy: colloids (gelatin solution) were used in Group 1 with balanced crystalloids in a ratio of 1: 1-1 .5, balanced crystalloid solutions were used in Group 2. The following parameters were studied: hemodynamics, water sector distribution index ( IRVS ), hemoglobin, hematocrit, potassium ions, sodium, creatinine, lactate, and CBS . A PLR test was performed intraoperatively. Results. It was revealed that the patients had an uneven distribution between water sectors with shortage of fluid in the intravascular bed, as evidenced by a positive PLR test, as well as low IRVS . When conducting targeted infusion therapy in Group 1, a smaller volume of infusion solutions was used, however, that made it possible to achieve stabilization of hemodynamic parameters due to redistribution of water sectors, which was also evidenced by changes in laboratory parameters. Conclusion. Obese patients have intravascular fluid deficiency due to uneven distribution between water sectors. The inclusion of a colloidal plasma substitute to the infusion therapy contributes to the elimination of hypovolemia and reduces the volume of transfused media.

Beneficial effect of transient desflurane inhalation on relieving inflammation and reducing signaling induced by MPTP in mice.

ObjectiveTo determine if the beneficial effects of transient desflurane application mitigates inflammation and decrease associated signaling induced by 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP) in mice.MethodsMice were induced to develop Parkinson’s disease (PD) by intraperitoneal injection with MPTP for 20 consecutive days, and validated mice were randomly allocated to four groups. Collected samples from euthanized mice were designated for the following analyses: 1) immunohistochemical staining for positive dopaminergic neurons in the substantia nigra and striatum, 2) immunofluorescence staining for ionized calcium binding adaptor molecule-1 (Iba1) and glial fibrillary acid protein (GFAP), and 3) western blotting for p38, p-p38, toll-like receptor 4, and tumor necrosis factor (TNF)-α.ResultsThe inhalation of desflurane for 1 hour ameliorated locomotory dysfunctions of PD mice by recovering the loss of Iba1- and GFAP-positive dopaminergic neurons, deactivating microglial cells and astrocytes, and decreasing the amounts of inflammatory cytokines (TNF-α).ConclusionsThese findings suggest that transient desflurane inhalation may provide some benefits for PD through ameliorating inflammation and enhancing locomotor activity.

Opiode-saving anesthesia and analgesia as a component of ERAS in endoscopic adrenalectomy in obese patients

BACKGROUND: Anesthetic management during interventions on the adrenal glands is quite complex. Difficulties in conducting anesthesia are often determined by concomitant obesity, which is associated with an increased sensitivity of the respiratory center to the action of opioids. This condition contributes to an increase in the frequency of respiratory and other disorders with the use of opioids.&#x0D; AIM: This work aimed to study the influence of different variants of perioperative anesthesia and analgesia administered during retroperitoneoscopic adrenalectomy in obese patients during the perioperative period.&#x0D; MATERIALS AND METHODS: A randomized study of 94 patients who underwent retroperitoneoscopic adrenalectomy for adrenal neoplasms was performed. Depending on the type of perioperative analgesia, the patients were divided into two groups. In group 1 (n=33), the operation was performed under combined anesthesia based on the low-flow desflurane inhalation; for perioperative analgesia, only systemic opioid administration was provided. In group 2 (n=30), the operation was performed under anesthesia based on low-flow desflurane inhalation in combination with the blockade of the fascial space of the erector muscle. In group 3 (n=31), the operation was performed under anesthesia based on desflurane in combination with drugs for non-opioid analgesia. critical incidents.&#x0D; RESULTS: Surgical intervention of the wound under inhalation anesthesia with ESP blockade (ropivacaine) and a combination of drugs for non-opioid analgesia promotes faster post-anesthetic rehabilitation, effective postoperative analgesia, and fewer complications in the early postoperative period compared with anesthesia using systemic opioid analgesics. This effect contributed to significantly shorter hospitalization of 97 hours for group 2 (95% CI 85-102) (p=0,042) and 94 hours for group 3 (95% CI 82-101) (p=0,039) compared with the 126 hours for group 1 (95% CI 114-135).&#x0D; CONCLUSIONS: Anesthesia based on desflurane in combination with ESP blockade and a multiple drugs for non-opioid anesthesia is an effective method that promotes fast post-anesthesia rehabilitation and shortens the hospitalization period for retroperitoneoscopic adrenalectomy for aldostectomy in the perioperative period.

Propofol prevents further prolongation of QT interval during liver transplantation

Here, we aimed to compare the effects of two anesthetic methods (desflurane inhalation anesthesia vs. propofol-based total intravenous anesthesia (TIVA)] on corrected QT interval (QTc) values during living donor liver transplantation. Altogether, 120 patients who underwent living donor liver transplantation were randomized to either the desflurane or TIVA group. The primary outcome was intraoperative QTc change. Other electrocardiogram, hemodynamic findings and postoperative outcomes were examined as secondary outcomes. QTc values were prolonged intraoperatively in both groups; however, the change was smaller in the TIVA group than in the desflurane group (PGroup × Time < 0.001). More patients had QTc values of > 500 ms in the desflurane group than in the TIVA group (63.3% vs. 28.3%, P < 0.001). In patients with preoperative QTc prolongation, QTc was further prolonged in the desflurane group, but not in the TIVA group (PGroup × Time < 0.001). Intraoperative norepinephrine and vasopressin use were higher in the desflurane group than in the TIVA group. Propofol-based TIVA may reduce QTc prolongation during living donor liver transplantation compared to that observed with desflurane inhalational anesthesia, particularly in patients with preoperative QTc prolongation. Additionally, patients managed with propofol-based TIVA required less vasopressor during the procedure as compared with those managed with desflurane inhalational anesthesia.

Anesthetic Support of Aldosteroma Surgery

Anesthetic provision of retroperitoneoscopic adrenalectomy for hormone-active adrenal tumors still requires overcoming certain difficulties. This is due to significant metabolic and functional disorders that persist even after thorough preoperative preparation. In addition, the endovideoscopic intervention itself requires certain conditions, each of which is fraught with additional stress on the circulatory and respiratory systems. The objective: to develop a technique for anesthetic management of aldosteroma surgery. Subjects and Methods. The study involved 57 patients (42 women and 15 men aged from 38 to 62 years) who underwent retroperitoneoscopic adrenalectomy for aldosteroma. The patients were divided into two groups depending on the method of anesthesia. In Group 1 ( n = 30), the operation was performed under combined anesthesia with low-flow desflurane inhalation as a basis and perioperative analgesia with systemic opioid administration. Patients of Group 2 ( п = 27) were operated under anesthesia with low flow desflurane inhalation as a basis in combination with 0.35% ropivacaine solution blockade of the fascial space of the erector spinae plane muscle on the surgery side (ESP erector spinae plane). In order to optimize myoplegia, Group 2 was divided into three subgroups (A, Б, and В), 9 patients each. In patients of subgroup A, muscle relaxation was achieved by continuous administration of rocuronium bromide at the dose of 0.4 mg • kg-1 • h-1 throughout the operation. In subgroups Б and В, muscle relaxation was achieved by bolus administration of rocuronium bromide intravenously at the dose of 0.15 mg * kg -1 * h -1 . Patients from subgroup A underwent no decurarization. In subgroup Б, for the purpose of decurarization, atropine sulfate 0.01 mg/kg and proserin 0.05 mg/kg were administered. In subgroup Б, sugammadex was administered at the dose of 4 mg/kg. Neuromuscular conduction was monitored, parameters of central and peripheral hemodynamics, anesthesia adequacy, quality of postoperative analgesia, and frequency of postoperative complications were assessed. Results. Combined anesthesia with desflurane with ESP blockade allows achieving the required level of its depth, providing adequate analgesia in the postoperative period, avoiding the use of high doses of opioid analgesics after surgery and thereby preventing the occurrence of complications associated with their use. The use of rocuronium bromide in patients with aldosteroma provides complete muscle relaxation at all stages of the video endoscopic intervention. The use of sugammadex makes the myoplegia technique manageable, which allows by the end of the operation to restore neuromuscular conduction, transfer to spontaneous breathing and activate the patient, which to a certain extent ensures the prevention of postoperative complications. Conclusions. The use of ESP block with combined anesthesia is an effective method of perioperative analgesia for retroperitoneoscopic adrenalectomy for aldosteroma, and also reduces the consumption of opioid analgesics and reduces the number of postoperative complications associated with their use. Continuous infusion of rocuronium bromide without deteriorating the quality of the neuromuscular block significantly reduces the consumption of the relaxant, and the use of sugammadex makes myoplegia controllable which is very important for patients with aldosteroma.

Oxidative and pro-inflammatory lung injury induced by desflurane inhalation in rats and the protective effect of rutin.

Desflurane is a mainstay of general inhaled anesthetics with a methyl ethyl ether structure and is widely used in clinical practice. It has been reported to induce inflammation and lipid peroxidation in rat pulmonary parenchyma, to increase alveolar macrophages, and to cause peribronchial infiltration and edema. Rutin, a flavonoid vitamin P1, is known to have biological properties including acting as an antioxidant, an anti-inflammatory, and an inhibitor of bronchoalveolar polymorphonuclear leukocyte (PNL) infiltration. The aim of this study is to examine the effects of rutin on desflurane-induced pulmonary injury using biochemical and histopathological methods. The rats were divided into 3 groups (n = 6 each): healthy control (HC), rutin+desflurane-treated (DRT) and desflurane-only (DSF). Briefly, 50 mg/kg of rutin was given orally to the DRT group and an equal volume of normal saline was given to the DSF and HC groups. After 1 h, anesthesia was induced and maintained in the DRT and DSF groups for 2 h. After the rats had been sacrificed, the lungs were removed. Malondialdehyde (MDA), total glutathione (GSH), tumor necrosis factor alpha (TNF-α), and nuclear factor kappa B (NF-κB) levels were measured in the excised lung tissue. The removed tissues were also fixed in 10% formalin, and the obtained sections were stained with hematoxylin and eosin (H&E) and evaluated under light microscopy. The biochemical and histopathological results of the DRT group were compared with those obtained from the DSF and HC groups. Desflurane increased MDA, TNF-α and NF-κB, and decreased GSH in lung tissue. The PNL infiltration, alveolar macrophages, hemorrhage, alveolar damage, and edema were observed in the lung tissue of the DSF group. Rutin was histopathologically shown to protect lung tissue from oxidative stress by preventing an increase in oxidant parameters and a decrease in antioxidants. The results suggest that rutin may be useful in the treatment of desflurane-associated lung injury.

Hypercapnia versus normocapnia for emergence from desflurane anaesthesia

Rapid emergence from general anaesthesia is desirable only if safety is not sacrificed. Mechanical hyperventilation during hypercapnia produced by carbon dioxide infusion into the inspired gas mixture or by rebreathing was reported to shorten emergence time from inhalation anaesthesia. To test the hypothesis that hypercapnia produced by hypoventilation before desflurane cessation shortens emergence time from general anaesthesia (primary hypothesis) and reduces undesirable cardiorespiratory events. A single-blinded randomised controlled study. A single university hospital. Fifty adult patients undergoing elective abdominal surgery under general anaesthesia using desflurane inhalation and intra-operative epidural anaesthesia. The patients were randomly assigned to either the normocapnia or hypercapnia group. Emergence time from desflurane anaesthesia and comparison of the incidence of 11 predefined undesirable cardiorespiratory events during and after emergence from anaesthesia between the groups. Forty-six patients were included in the analysis. End-tidal carbon dioxide concentrations at cessation of desflurane were 35 ± 6 mmHg (mean ± SD) and 52 ± 6 mmHg in normocapnia (n = 23) and hypercapnia groups (n = 23), respectively. Emergence time was significantly faster in the hypercapnia group than the normocapnia group: 9.4 ± 2.4 min, hypercapnia: 5.5 ± 2.6 min, (P < 0.001) with a difference of 3.8 min on average (95% CI: 2.4 to 5.3). Spontaneous breathing established before recovery of consciousness was more evident in hypercapnia patients (normocapnia: 13%, hypercapnia: 96%, P < 0.001). Hypercapnia patients had more episodes of bradypnoea and apnoea before emergence of consciousness. In contrast, after tracheal extubation, incidences of bradypnoea and hypopnoea were more common in the normocapnia group. Undesirable cardiovascular events were not common, and no group differences were observed during emergence and postextubation periods. Hypoventilation-induced hypercapnia before desflurane cessation shortens the emergence time without causing additional clinically significant undesirable events. UMIN Clinical Trials Registry (UMIN000020143) https://upload.umin.ac.jp/cgi-open-bin/ctr/ctr.cgi?function=brows&recptno=R000023266&language=E.

Erector spinae plane blockade in the complex of anesthesia support of aldosteroma surgery

BACKGROUND: The only radical method of treatment of hormonally active adrenal tumors is retroperitoneoscopic adrenalectomy. The modern approach dictates the principles of multimodal analgesia, and avoidance of narcotic analgesics. On the other hand, early activation of such patients in the postoperative period entails a more pronounced postoperative pain syndrome. The relevance of these problems makes us think about better tactics of perioperative management of such patients.&#x0D; AIM: Feasibility of ESP blockade as a component of analgesia during retroperitoneoscopic surgeries for aldosteroma.&#x0D; MATERIALS AND METHODS: A randomized study was conducted in 41 patients who underwent retroperitoneoscopic adrenalectomy for aldosteroma. The patients were divided into 2 groups. In the 1st group the operation was carried out under combined anesthesia with Desflurane inhalation and perioperative analgesia by systemic injection of opioids; in the 2nd group the operation was carried out under combined anesthesia with Desflurane inhalation in combination with fascial blockade of the rectifying spine muscle at the operation site by 0.35% Ropivacaine solution.&#x0D; RESULTS: The use of ESP blockade as an analgesic component of combined anesthesia is indicated for retroperitoneoscopic surgeries for aldosteroma. Firstly, its implementation excludes the use of opioids during anesthesia, which allows to implement the principles of accelerated rehabilitation surgery (ERAS). Secondly, low-flow Desflurane inhalation combined with ESP blockade provides adequate anesthesia during unilateral adrenalectomy for aldosteroma. Thirdly, the analgesic effect of ESP blockade extends to the early postoperative period.&#x0D; CONCLUSIONS:&#x0D; The use of ESP block in combination with low flow Desflurane inhalation can be considered as the anesthesia method of choice for retroperitoneoscopic adrenalectomy for aldosteroma.&#x0D; This technology allows to implement ERAS principles.&#x0D; The use of ESP block reduces the number of postoperative complications associated with the use of narcotic analgesics.

Inhalation of low-dose desflurane prevents the hemodynamic instability caused by target-controlled infusion of remifentanil and propofol during laparoscopic gynecological surgery: A randomized controlled trial.

The objective of the present study was to determine whether the addition of inhaled desflurane is superior to remifentanil-propofol total intravenous anesthesia (TIVA) alone in patients undergoing laparoscopic gynecological surgery. A total of 60 patients who were scheduled to undergo laparoscopic gynecological surgery were prospectively enrolled and randomly allocated to receive either propofol-remifentanil (PR group; n=30) or combined propofol-remifentanil and low-dose desflurane (PRD group; n=30) for the maintenance of anesthesia. Hemodynamics [mean arterial pressure (MAP); heart rate (HR)], recovery parameters and complications were recorded. The results of the present study indicated that the addition of desflurane significantly reduced the amount of propofol and remifentanil that was administered in the PRD group, compared with that in the PR group. MAP and HR were significantly higher at T3 (5 min post-pneumoperitoneum), but significantly lower at T4 (removal of pneumoperitoneum needle) and T5 (post-operation immediately) in the PR group, compared with the PRD group. Moreover, MAP and HR were significantly altered at multiple time points within the PR group; however, they were relatively stable in the PRD group. There were no significant differences in the recovery parameters and complications between the two groups. In conclusion, combining low-dose desflurane with PR may represent an efficient anesthesia regimen to prevent the hemodynamic instability of TIVA in patients undergoing laparoscopic gynecological surgery.

Remifentanil infusion during desflurane anesthesia reduces tissue blood flow while maintaining blood pressure and tissue oxygen tension in the masseter muscle and mandibular bone marrow.

The aim of this study was to compare changes in tissue blood flow and tissue oxygen tension in the masseter muscle and mandibular bone marrow induced by remifentanil under desflurane or sevoflurane anesthesia. Eleven male tracheotomized Japan White rabbits were anesthetized with desflurane or sevoflurane under mechanical ventilation. The order of the inhalation of desflurane or sevoflurane was randomized. Desflurane or sevoflurane was administered at 1.0 minimum alveolar concentration and remifentanil was infused at 0.4 µg/kg/min. Observed variables included heart rate (HR), blood pressure (BP), common carotid artery blood flow (CCBF), mandibular bone marrow tissue blood flow (BBF), masseter muscle tissue blood flow (MBF), mandibular bone marrow tissue oxygen tension (PbO2), and masseter muscle tissue oxygen tension (PmO2). Two way repeated measures ANOVA showed no interaction between volatile anesthetics and remifentanil infusion except for MBF. There were significant differences in HR, SBP, DBP, MAP and CCBF between desflurane and sevoflurane groups. There were also significant differences in HR, SBP, DBP, MAP, CCBF, BBF and PbO2 before, during and after remifentanil infusion. Desflurane reduced tissue blood flow in the masseter muscle and mandibular bone marrow while better maintained HR and BP than sevoflurane. Under remifentanil infusion, although both anesthetics reduced tissue blood flow, tissue oxygen tension was maintained in masseter muscle and mandibular bone marrow.

Effects of different concentrations of desflurane on the index of cardiac electrophysiological balance in gynecologic surgery patients.

The objectives were to observe the effects of different concentrations of desflurane on QT, QTc, Tp-e, Tp-e/QT, and the index of cardiac electrophysiological balance (iCEB). Sixty patients were randomly divided into group D1, group D2, and group D3 by using a random number table, 20 in each group. After entering the operating room, patients received 10 mL/kg hydroxyethyl starch, 0.1 mg/kg midazolam, 0.1 mg/kg vecuronium, 3 μg/kg fentanyl, and 0.3 mg/kg etomidate intravenously and then accepted intubation and mechanical ventilation. The desflurane evaporator was opened. The concentrations of desflurane in the D1, D2, and D3 groups were maintained at 0.6, 1.3, and 2.0 minimum alveolar concentration (MAC), respectively. Twelve-lead ECGs were recorded at time before induction (T1) and at 20 min after desflurane reached the required concentration (T2). HR and MAP were recorded measure and the QT interval, QTc interval, Tp-e interval, Tp-e/QT ratio, and iCEB were calculated. Compared with before inhalation (T1), the QTc interval was prolonged in the D1, D2, and D3 groups after inhalation of different concentrations of desflurane for 20 min (T2) (P < 0.05) and the Tp-e/QT ratio decreased in the D1 and D2 groups at T2 (P < 0.05). Compared with the D1 and D2 groups, the Tp-e/QT ratio of the D3 group increased at T2 (P < 0.05). There was no significant difference in Tp-e interval and iCEB at any time (P > 0.05). The study suggested that inhalation of desflurane at a normal concentration cannot cause arrhythmogenic characteristics and affect the cardiac electrophysiological stability.

Application of Accelerated Activation in Retroperitoneal Video Endoscopic Adrenalectomy for Cushing Syndrome

Purpose.To improve the immediate results of surgical treatment of endogenous hypercorticism throughoptimizing the perioperative management of patients using accelerated rehabilitation protocols.Materials and methods.A randomized prospective study of 53 patients with a body mass index 35 kg/m2 was carried out. In the control group (n=27), TIVA based on propofol was used with postoperative analgesia by systemic administration of opioids. In the accelerated rehabilitation protocol group (n=26), we used anesthesia based on low-flow inhalation of desflurane with sympatholytic mixture infusion in intra- and postoperative periods, multimodal postoperative analgesia, and use of accelerated rehabilitation protocol in the perioperative period. The time of patients' achievement of BIS90 index, time of extubation, time of achievement of 10 points by the Aldrete scale and 0 points by the Bidway test, duration of stay in the in-patient hospital, number of postoperative complications were assessed. Effectiveness of analgesia was evaluated by the time of the first analgesia requirement, consumption of narcotic analgesic, VAS and Verbal Descriptor scale.Results.The study revealed that the time of awakening and reaching 10 points by the Aldrete scale in patients of group 2 was significantly shorter than in group 1: 3 (2; 6) and 6.5 (3.5; 9) min respectively (P=0.046). They had fewer postoperative complications, shorter hospitalization time — 58 (39; 71) hours compared to the control group with 74.5 (58.5; 87) hours (P=0.032).Conclusion.Perioperative management of obese patients after retroperitoneal video endoscopic adrenalectomy with the use of accelerated rehabilitation protocols contributed to earlier mobilization, reduction of the number of complications in the early postoperative period, reduction of the duration of stay in the in-patient hospital, which together facilitates improving the immediate results of surgical treatment of endogenous hypercorticism.

Comparision of desflurane and propofol for maintaining general anaesthesia in cataract surgery of elder patients

Objective To compare the application of desflurane and propofol as maintenance anesthetics to maintain intraoperative haemodynamics and quality of recovery in elder patients during cataract surgery. Methods After consent form obtained, 60 elder patients, from Jan.2017 to Dec.2017 scheduled for cataract surgery were randomized into 2 groups, 30 cases in each group.The desflurane group (D group) received desflurane inhalation and the propofol group (P group) received propofol using effect-site target-controlled infusion (TCI). The adequate depth of anaesthesia were monitored with narcotrend to ensure equipotency of anaesthetic administration in both groups. The Narcotrend Index maintained between 40 and 55 by titrating the anaesthetic agents. Cardiovascular drug intervention, the time of spontaneous breathing, the time of awakening and recovery adverse events were analysed. Results There was no difference of the time of spontaneous respiration or awakening between the two groups(P>0.05). The times of cardiovascular drug intervention in D group were fewer than that of P group (t=2.32, P=0.03). However, the adverse events of nausea and vomiting in lucid interval in D group were significantly more than those of P group (t=2.47, P=0.04). Conclusion Application of desflurane maintains general anaesthesia in elder patients during cataract surgery. There is no difference in spontaneous respiration or awakening between the two groups. However, desflurane inhalation anesthesia provides more stable haemodynamics during the operation. Propofol total intravenous anesthesia provides significantly better quality of recovery than desflurane inhalation anesthesia. Key words: Desflurane; Propofol; Cataract surgery, elder patients; General anaesthesia; Recovery

Comparative evaluation of recovery after desflurane or sevoflurane anaesthesia

Introduction and Aims: Early recovery is seen while using sevoflurane and desflurane for anaesthesia as inhalation agents. Main aim of the study was to compare and analyze desflurane and sevoflurane inhalation agents in terms of emergence from anaesthesia and recovery of cognitive functions using short Orientation-Memory-Concentration Test (SOMCT) and digital symbol substitution test (DSST) in patients undergoing laparoscopic surgeries. Materials and Methods: A prospective randomized controlled study was conducted over 60 ASA I-III patients posted for laparoscopic surgeries. The day when patient was posted for surgery, SOMCT and DSST were done and baseline score was noted. Patients were pre-medicated and induced and were maintained on inhalation agents according to the group allocated. Inhalation agent was stopped after the surgery was completed and reversal agent for neuromuscular agent was being given. Total anaesthetic time, Time to extubaton, Time to eye-opening, Time to follow verbal commands, Time to achieve aldrete score 9 were noted. Then, patient was asked to perform SOMCT and DSST. Time required to reach the baseline level was compared. Results: The mean time to extubation was comparable in both groups. The mean time to follow verbal command after stopping study drug was statistically significantly less in desflurane group D (p Conclusion: Desflurane when compared with sevoflurane during laparoscopic surgery produces faster emergence from anaesthesia but time to achieve baseline cognitive function is similar in both. Keywords: DSST, SOMCT, Sevoflurane, Desflurane.

Comparison of anesthesia and perioperative analgesia in simulty hernioplasty and abdominoplasty in patients with obesity

Justification. Among patients with large postoperative ventral hernias, the most common are patients with varying degrees of obesity. This group of patients presents a certain complexity for anesthesia in connection with a number of anatomical and physiological changes and a high risk of complications in the early postoperative period in connection with which this study was conducted. Purpose of trial. Study of the influence of various anaesthetic management and perioperative analgesia with simultaneous hernioplasty and abdominoplasty of major postoperative incisional hernia (PIH) in patients with obesity during the perioperative period. Materials and methods. A randomized trial of 59 patients with a body mass index &gt; 30 kg /m2 was performed. Depending on the type of anesthesia, patients are divided into two groups. In the 1st group (n = 30), the operation was performed on low-flow inhalation of desflurane based anaesthesia in combination with prolonged epidural analgesia (PEA) with ropivacaine, in the 2nd group (n = 29), the operation was performed on low flow inhalation of desflurane anesthesia based in combination with blockade of transverse abdominal plane (TAP) with 0.5% solution of ropivacaine, in the 3rd group (n = 31) the operation was performed under combined anesthesia based of low flow desflurane and opioids as main perioperative analgesic. The indicators adequacy of anesthesia parameters investigated, central and peripheral hemodynamics were monitored neuromuscular conduction, evaluated the efficacy of recovery after surgery and postoperative analgesia quality, postoperative critical incident were studied. Results. It was found that surgical intervention in low-flow inhalation desflurane anaesthesia based combined with PEA ropivacaine promotes faster recovery after surgery and effective postoperative analgesia and fewer complications in the early postoperative period, which contributed to significantly shorter hospital lengths of stay for patients in group 1 — 82,5 hours (95% CI 76–93,5) compared with group 2 — 94 hours (95% CI 85,5–113) (p = 0,015). Conclusions. Combined desflurane-based anesthesia in combination with regional methods is an effective method of anesthesia and analgesia in the perioperative period and contributes to faster recovery after surgery and shorter surgical treatment with simultaneous hernio- and abdominoplasty of large (PIH) in obese patients.

Anesthesia management in laparoscopic sleeve gastrectomy: Outcomes of 81 patients

Background: Anesthesia management has critical role in the effectiveness of laparoscopic sleeve gastrectomy (LSG), due to the significant anatomic, physiological, and pathological challenges in obese population. Aim: To report and discuss our anesthetic management outcomes in patients who underwent LSG. Methods: Data of 81 obese patients who underwent LSG were retrospectively analyzed. All techniques used in the anesthesia management were compared between each other in terms of complications, duration of surgery intensive care unit (SICU) stay, total hospitalization time. Results: Two different protocols were used for induction of anesthesia: propofol-based protocol (n=27) and thiopental sodium-based protocol (n=54). Anesthesia was maintained by sevoflurane (n=59) or desflurane (n=22) inhalation. All anesthesia-related complications were found in thiopental sodium group (p=0.026). Sevoflurane and desflurane were similar in anesthesia-related complication, duration of SICU stay and total hospitalization time. Presence of obstructive sleep apnea (OSA) and coexisting chronic disease were found to be associated with longer SICU stay (p