APPLICATION OF THE MODIFIED PECS BLOCKADE DURING RECONSTRUCTIVE AND AESTHETIC SURGERY ON THE MAMMARY GLANDS

Existing methods of anesthesia, drugs used in the field of breast plastic surgery have a number of features compared to anesthesia in the practice of general surgery. In particular, techniques of regional blockades, such as interfascial blocks PECS 1 and PECS 2 are taken into account. Their effectiveness in comparison with standard methods of anesthesia for different types of interventions on the breast is subject to further discussion. Thus, the article presents the results of efficiency in the implementation of the author's development - a modified PECS-block during reconstructive and aesthetic surgery on the mammary glands. Material and methods. During 2018-2020, 58 women (average age 36,8 ± 10,8 years) were included in the prospective study, who underwent low-flow inhalation anesthesia with sevoflurane during surgery, and in the postoperative period were divided into two subgroups: 1) subgroup 1, in whom regional anesthesia according to the author's method used; 2) subgroup 2 with nalbuphine analgesia. At the first visit, clinical and laboratory, instrumental ultrasound examination, completed informed consent cards of patients, as well as long-term observation cards were filled in. The method of postoperative analgesia developed by the author's method is, in essence, a combination of PECS 1 and PECS 2 blockades. The anesthetic solution was administered so as to effectively block the intercostal nerves that run along the posterior surface of the chest and extend outward into the parasternal region. For statistical analysis of the obtained results we used a package of general statistic data “Statistica for Windows” version 6.0 (Stat Soft inc., USA). At p<0, 05, the difference was considered statistically significant. Results. It was found that the use of modified PECS-block was characterized by a shortening of the verticalization time by 58,8%, compared with the introduction of nalbuphine and 2,16 times in the absence of postoperative anesthesia. The absolute efficiency (AE,%) of the modified PECS-block relative to the verticalization time was 68,0% higher compared to the use of nalbuphine, with a probable relative efficiency (RR, p<0,05) and the odds ratio (OR, p<0,05). 3 hours after the intervention of AE modified PECS-block relative to the intensity of pain less than 1 point was 89,0%, with a clinical efficiency of 60,0% relative to the use of nalbuphine, probable RR (p<0,05) and OR (p<0,05). The majority of patients who underwent modified PECS-block rated their physical and motor activity by more than 2 points (86,0%), while using nalbuphine the part was only 43.0% (p<0,05). The reversal, moderate regression relationship between pain self-esteem and physical activity (r=-0.46, p<0.05) persisted for 3 hours after the intervention. Against the background of the modified PECS block, there was no cases of postoperative nausea, in contrast to nalbuphine (AE – 18,0%, RR – 0,02 [0,003-0,97], p<0,05; HS – 0,02 [0,004-0,87], p<0,05). Regarding the parameters of cardio hemodynamics, it was found that against the background of nalbuphine there was an increase in heart rate to 29,3% after 1 hour, by 48,6 and 39,7% after 3 and 8 hours, compared with the modified PECS-block. The tendency to high (greater than 140 mm Hg) and high normal (greater than 130 mm Hg) blood pressure on the background of nalbuphine, in contrast to the modified PECS-block, where the CAT values during the 1st day stayed in the range of optimal pressure (110-130 mm Hg).

Comparison of the effects of combined neuraxial anesthesia and multicomponent low-flow inhalation anesthesia in the structure of perioperative anesthesia management in arthroscopic knee surgeries

Background. Arthroscopic knee surgery is one of the most common types of surgeries in the world. But the optimal anesthesia management for this type of orthopedic surgery is still debatable. The purpose of the study was to improve the quality of anesthesia management for arthroscopic interventions on the knee joint by introducing a personalized perioperative anesthesia management. Materials and methods. One hundred and forty-two patients aged 18–78 years, who underwent arthroscopic knee surgery, took part in the study. They were randomized into 2 groups according to the type of anesthesia chosen by the patient. In the first group (n1 = 82), individuals underwent neuraxial anesthesia in combination with intravenous administration of dexmedetomidine, in the second group (n2 = 60) — multicomponent low-flow inhalation anesthesia with sevoflurane combined with multimodal analgesia. Before the operation, the level of preoperative stress was assessed. During the first 24 hours after surgery, we have evaluated the level of postoperative pain by the visual analogue scale, the incidence of postoperative nausea and vomiting, and overall patient’s satisfaction with the surgery. Results. The level of pain according to the visual analogue scale, the incidence of postoperative nausea and vomiting, the level of satisfaction in the study groups did not differ significantly. The level of preoperative stress had a significant impact on the patient’s choice regarding the type of anesthesia. Conclusions. Neuraxial and general anesthesia for arthroscopic knee surgery has advantages and disadvantages. Decision-making on the method of anesthesia should be based on the patient’s wishes and possible previous surgical experience.

COMPARISON OF THE EFFECTS OF COMBINED NEURAXIAL ANESTHESIA AND MULTICOMPONENT LOW-FLOW INHALATION ANESTHESIA IN THE STRUCTURE OF PERIOPERATIVE ANESTHETIC MANAGEMENT IN PATIENTS UNDERGOING ARTHROSCOPIC INTERVENTIONS ON THE KNEE JOINT

Arthroscopic knee surgery (AKS) is one of the most common types of surgery in the world. But there is still a debate about the optimal type of anesthetic management for this type of orthopedic surgery. The purpose of the study was to improve the quality of anesthetic management of arthroscopic interventions on the knee joint by introducing personalized perioperative anesthesia management. Materials and methods: 142 patients, aged 18-78 years, who were planned for AKS, took part in the study. The patients were randomized into 2 groups according to the type of anesthesia chosen by the patient. In the first group (n1 = 82) patients underwent neuraxial anesthesia in combination with intravenous administration of dexmedetomidine, in the second group (n2 = 60) – multicomponent low-flow inhalation anesthesia with sevoflurane in combination with multimodal analgesia. Before the operation, the level of preoperative stress was assessed. During the first 24 hours after surgery, the level of postoperative pain was assessed by the VAS, the incidence of PONV, and overall patient satisfaction with the surgery. Results: the level of pain according to the VAS, the incidence of PONV, the level of satisfaction in the study groups did not differ significantly. Conclusions: Neuraxial and general anesthesia for arthroscopic knee surgery has advantages and disadvantages. The patient’s choice of one or another type of anesthetic aid was significantly influenced by the level of preoperative stress. Decision-making on the method of anesthesia should be based on the patient’s wishes and possible previous surgical experience.

COMPARISON OF ANESTHESIA AND PERIOPERATIVE ANALGESIA OPTIONS IN ENDOSCOPIC SLEEVE GASTRECTOMY IN PATIENTS WITH MORBID OBESITY

Patients with morbid obesity have an increased sensitivity of the respiratory center to opioids, which leads to an increased incidence of respiratory diseases, which dictates the need to limit the use of opioids in the structure of anesthesia. Purpose of the trial. Comparison of the impact of anesthesia options with minimal use of opioids during the perioperative period. Materials and methods. A randomized trial of 59 patients with a body mass index > 35 kg/m2, which was performed endoscopic sleeve gastectomy. Depending on the type of anesthesia, patients are divided into two groups. In the 1st group (n-30), the operation was performed under conditions of combined anesthesia based on low-flow inhalation of desflurane in combination with prolonged epidural analgesia (PEA) with of ropivacaine in group 2 (n-29), the operation was performed under conditions of combined anesthesia based on low flow inhalation of desflurane in combination with a combination with an infusion of the analgesic-sympatholytic solution. The indicators of the adequacy of anesthesia, central and peripheral hemodynamics, monitoring of neuromuscular conduction, the efficiency of postanesthesia recovery and the quality of postoperative analgesia were studied. Results and Conclusion. It was revealed that surgical intervention in conditions of low-flow inhalation anesthesia on the basis of desflurane in combination with PEA ropivacaine promotes faster postnanaesthesia recovery and effective postoperative analgesia.

Effect of 1,6-Hexamethylene Diisocyanate Exposure on Peak Flowmetry in Automobile Paint Shop Workers in Iran

Effect of 1,6-Hexamethylene Diisocyanate Exposure on Peak Flowmetry in Automobile Paint Shop Workers in IranThe aim of this study was to investigate the effects of occupational exposure to 1,6-hexamethylene diisocyanate (HDI) on peak flowmetry in automobile body paint shop workers in Iran. We studied a population of 43 car painters exposed to HDI at their workplaces. Peak expiratory flow was tested for one working week, from the start to the end of each shift. Air was sampled and HDI analysed in parallel, according to the OSHA 42 method.Daily and weekly HDI exposure averages were (0.42±0.1) mg m-3 and (0.13±0.05) mg m-3, respectively.On painting days, 72 % of workers showed more than a 10 % variation in peak expiratory flow. Inhalation exposure exceeded the threshold limit value (TLV) ten times over. This strongly suggests that HDI affected the peak flowmetry in the studied workers.