scholarly journals A study to observe influence of general anesthesia on cognitive functions in patients of abdominal surgery

2021 ◽  
Vol 4 (1) ◽  
pp. 131-133
Author(s):  
Dr. Sabyasachi Tripathy ◽  
Dr. Dhiraj Prakash
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yiyong Wei ◽  
Donghang Zhang ◽  
Jin Liu ◽  
Mengchan Ou ◽  
Peng Liang ◽  
...  

Abstract Background Metabolic status can be impacted by general anesthesia and surgery. However, the exact effects of general anesthesia and surgery on systemic metabolome remain unclear, which might contribute to postoperative outcomes. Methods Five hundred patients who underwent abdominal surgery were included. General anesthesia was mainly maintained with sevoflurane. The end-tidal sevoflurane concentration (ETsevo) was adjusted to maintain BIS (Bispectral index) value between 40 and 60. The mean ETsevo from 20 min after endotracheal intubation to 2 h after the beginning of surgery was calculated for each patient. The patients were further divided into low ETsevo group (mean − SD) and high ETsevo group (mean + SD) to investigate the possible metabolic changes relevant to the amount of sevoflurane exposure. Results The mean ETsevo of the 500 patients was 1.60% ± 0.34%. Patients with low ETsevo (n = 55) and high ETsevo (n = 59) were selected for metabolomic analysis (1.06% ± 0.13% vs. 2.17% ± 0.16%, P < 0.001). Sevoflurane and abdominal surgery disturbed the tricarboxylic acid cycle as identified by increased citrate and cis-aconitate levels and impacted glycometabolism as identified by increased sucrose and D-glucose levels in these 114 patients. Glutamate metabolism was also impacted by sevoflurane and abdominal surgery in all the patients. In the patients with high ETsevo, levels of L-glutamine, pyroglutamic acid, sphinganine and L-selenocysteine after sevoflurane anesthesia and abdominal surgery were significantly higher than those of the patients with low ETsevo, suggesting that these metabolic changes might be relevant to the amount of sevoflurane exposure. Conclusions Sevoflurane anesthesia and abdominal surgery can impact principal metabolic pathways in clinical patients including tricarboxylic acid cycle, glycometabolism and glutamate metabolism. This study may provide a resource data for future studies about metabolism relevant to general anaesthesia and surgeries. Trial registration www.chictr.org.cn. identifier: ChiCTR1800014327.


1995 ◽  
Vol 81 (5) ◽  
pp. 1111
Author(s):  
Shinichi Hirata ◽  
Norimasa Seo ◽  
Takanori Murayama ◽  
Toshihumi Fujiwara ◽  
Masato Sekiguchi

2003 ◽  
Vol 131 (5-6) ◽  
pp. 232-237 ◽  
Author(s):  
Vesna Malenkovic ◽  
Sava Zoric ◽  
Tomislav Randjelovic

Type and technique of anesthesia have an important effect on per operative surgical course. The aim of the study was prospective analyses of advantages of combined spinal, epidural and general anesthesia (CSEGA) versus general anesthesia (GA) in abdominal surgery according to: 1. operative course (haemodynamic stability of patients, quality of analgesia, undesirables effects), 2. postoperative course (quality of analgesia, unfavorable effects, temporary abode of patients in intensive care). Using prospective randomized double blind controlled study, we evaluated two groups of patients whom the same type of abdominal surgical intervention was planed and the only difference was the type of technique of anesthesia. First group of patients (n=34), was treated with CSEGA and second group of patients (n=33), was treated only with standard (GA). Both groups had intraoperative and 24-hour-long postoperative continued monitoring of blood pressure central venous pressure, and dieresis. In the 24 hours postoperative period the following parameters were analyzed: vigilance conditions, motor block level, pain intensity in rest and movement, necessity for a complementary analgesia, side effects and final subjective effect of analgesia. There was important difference in waking up the patients after a general anesthesia in the first group this period was shorter. In the first 24 hours, patients from the first group didn't get any systemic analgesic, while the patients from the second group needed fractionary application of parenteral analgesics in the period of 4-6 hours. Patients from the first group were also physically faster and easier recovered and they had less respiratory complications and there was not any example of thromboembolysm and the intestine motility was faster re-established. First group of patients spent less time in intensive care (three days) than second group (six days). Final subjective effect of analgesia, according to verbal descriptive scale (VDS) of pain was satisfying with 75% of patients of the first group and 15% of patients of the second group. According to results investigation advantages of CSEDGA versus GA in abdominal surgery manifold: better hemodynamic stability and perfusion of operative region, decrease of single doses of opioid analgesics, local and general anesthetics followed by the decrease of their side effects, better intensity and longer duration of analgesia, improved total functional capability of patients.


1984 ◽  
Vol 57 (2) ◽  
pp. 576-582 ◽  
Author(s):  
J. D. Road ◽  
K. R. Burgess ◽  
W. A. Whitelaw ◽  
G. T. Ford

Decreased diaphragm activity has been demonstrated after cholecystectomy in humans (Am. Rev. Respir. Dis. 127: 431–436, 1983). To investigate the mechanism(s) of postoperative diaphragm dysfunction we have established a dog model. Three groups of mongrel dogs were studied under general anesthesia: six dogs received no surgery (control); nine dogs underwent upper abdominal surgery (cholecystectomy); and six dogs underwent lower abdominal surgery (pseudoappendectomy). Diaphragm function was assessed by changes in transdiaphragmatic pressure swings, the ratio of changes in gastric to esophageal pressure swings, and the ratio of changes in abdominal to rib cage diameters during quiet tidal breathing. In the upper abdominal surgery group there were significant postoperative decreases in all parameters of diaphragm function and an increase in minute ventilation and respiratory frequency. However, there were no significant postoperative changes in the parameters of diaphragm function in the control or lower abdominal surgery groups. These studies establish that general anesthesia is not responsible for the reduced diaphragm activity seen postoperatively and that diaphragm function is not affected by lower abdominal surgery in dogs.


1995 ◽  
Vol 81 (5) ◽  
pp. 1111-1112 ◽  
Author(s):  
Leonid Roytblat ◽  
Allan Fisher ◽  
Lev Greemberg ◽  
Anatol Korotkoruchko

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