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Öğe Comparison of continuous use of thoracic epidural analgesia and intercostal block for pain management after thoracotomy(Termedia Publishing House Ltd, 2013) Sagiroglu, Gonul; Baysal, Ayse; Kiraz, Osman Gazi; Meydan, Burhan; Tasci, Ahmet Erdal; Iskender, IlkerAim of the study: We aimed to compare the efficacy of the continuous use of thoracic epidural and intercostal analgesia for post-thoracotomy pain. Material and methods: Sixty patients completed a prospective, randomized, double-blinded study. The patients were randomized to receive thoracic epidural (group 1, n = 30) or intercostal block (group 2, n = 30) for 24 hours. In both groups, 0.25% bupivacaine was infused at a rate of 5 ml/h through an inserted catheter. Visual analog scale at rest (VAS-R) and after coughing (VAS-C) scores were recorded at baseline and at 1, 6 and 24 hours after surgery to evaluate pain. Morphine consumption, complications and side effects were recorded as well. Results: VAS-R and VAS-C scores were similar at baseline; however, 1st, 6th and 24th hour scores of group 1 were significantly lower than the scores of group 2 (for VAS-R; p = 0.017, p = 0.001, p = 0.023, for VAS-C; p = 0.006, p = 0.002, p = 0.032, respectively). 24-hour morphine consumption was lower in group 1 in comparison to group 2 (p = 0.032). In group 1, 5 out of 30 patients (17%) experienced hypotension, compared with none in group 2 (p = 0.02). Conclusions: For post-thoracotomy pain, better control of analgesia is observed with the thoracic epidural technique; however, intercostal block constitutes an alternative method as it is characterized by lower incidence of hypotension.Öğe Comparison of ON-Q elastomeric pump system and thoracic epidural analgesia methods for pain management after thoracotomy(Baycinar Medical Publ-Baycinar Tibbi Yayincilik, 2017) Sagiroglu, Gonul; Baysal, Ayse; Meydan, Burhan; Kiraz, Osman Gazi; Tasci, Ahmet ErdalBackground: This study aims to compare the results of continuous infusion of local anesthetics through either ON-Q elastomeric pump or thoracic epidural analgesia for management of pain after thoracotomy. Methods: Ninety-seven patients (86 males, 11 females; mean age 56.37 years; range 34 to 86 years) were included in this prospective and randomized study. Patients were randomized into two groups to undergo either ON-Q elastomeric pump system (group 1, n=50) or thoracic epidural analgesia (group 2, n=47) for 24 hours. In both groups, continuous 0.125% bupivacaine infusion was performed from a catheter at a rate of 0.1 mL/kg/hour. Intravenous morphine was provided to all patients through patient controlled analgesia method. Postoperative pain was evaluated with visual analog scale during rest and coughing at baseline and postoperative first, sixth, 12th, and 24th hours. Results: Although visual analog scale rest and coughing scores of group 1 at first, sixth, 12th, and 24th hours were significantly higher than group 2, its baseline values were similar to group 2. Total local anesthetic consumption of group 2 was higher than group 1. Although hypotension was not observed in any patient in group 1, significant hypotension was observed in seven patients (14.9%) in group 2. The incidences of nausea and vomiting were 4% (n=2) in group 1 and 17% (n=8) in group 2. Conclusion: Thoracic epidural analgesia provides superior analgesia compared to ON-Q elastomeric pump system in pain treatment after thoracotomy. Still, having lesser incidence of hypotension and easier technical application, ON-Q elastomeric pump system may be considered as an alternative method to thoracic epidural analgesia.Öğe A comparison of thoracic or lumbar patient-controlled epidural analgesia methods after thoracic surgery(Bmc, 2014) Sagiroglu, Gonul; Meydan, Burhan; Copuroglu, Elif; Baysal, Ayse; Yoruk, Yener; Karamustafaoglu, Yekta Altemur; Huseyin, SerhatBackground: We aimed to compare patient-controlled thoracic or lumbar epidural analgesia methods after thoracotomy operations. Methods: One hundred and twenty patients were prospectively randomized to receive either thoracic epidural analgesia (TEA group) or lumbar epidural analgesia (LEA group). In both groups, epidural catheters were administered. Hemodynamic measurements, visual analog scale scores at rest (VAS-R) and after coughing (VAS-C), analgesic consumption, and side effects were compared at 0, 2, 4, 8, 16, and 24 hours postoperatively. Results: The VAS-R and VAS-C values were lower in the TEA group in comparison to the LEA group at 2, 4, 8, and 16 hours after surgery (for VAS-R, P = 0.001, P = 0.01, P = 0.008, and P = 0.029, respectively; and for VAS-C, P = 0.035, P = 0.023, P = 0.002, and P = 0.037, respectively). Total 24 hour analgesic consumption was different between groups (175 +/- 20 mL versus 185 +/- 31 mL; P = 0.034). The comparison of postoperative complications revealed that the incidence of hypotension (21/57, 36.8% versus 8/63, 12.7%; P = 0.002), bradycardia (9/57, 15.8% versus 2/63, 3.2%; P = 0.017), atelectasis (1/57, 1.8% versus 7/63, 11.1%; P = 0.04), and the need for intensive care unit (ICU) treatment (0/57, 0% versus 5/63, 7.9%; P = 0.03) were lower in the TEA group in comparison to the LEA group. Conclusions: TEA has beneficial hemostatic effects in comparison to LEA after thoracotomies along with more satisfactory pain relief profile.Öğe The Comparison of Two Different Techniques of Remifentanil Administration During Implantable Vascular Access Device Procedures(Elsevier Science Inc, 2021) Sagiroglu, Gonul; Baysal, Ayse; Yanik, FazliPurpose: The aim was to compare analgesic efficacy and adverse effects of two different techniques of intravenous remifentanil administration in patients undergoing vascular; access device procedures with monitored anesthesia care. Design: A randomized, single-blinded controlled study. Methods: The patients (N = 92) were 30-80 years old and of American Society of Anesthesiologists Physical Status I-III. The first group was the continuous infusion group (group CI). Intravenous continuous remifentanil was infused after starting at a dosage of 0.1 mcg/kg/min, and the dose was raised incre-mentally up to 1 mcg/kg/min if required. The second group was intravenous bolus patient-controlled sedation analgesia (PCSA) with remifentanil infusion at a dose of 0.05 mcg/kg per minute and bolus of 0.1 mcg/kg with lock-out time of 3 minutes. In both groups, a bolus dose of 0.1 mcg/kg remifentanil was administered. The data evaluated include level of pain and sedation, total amount of remifentanil con-sumption, bolus doses of remifentanil, patient and surgeon satisfaction, hemodynamic data, and adverse events. Findings: In comparison between techniques, pain and sedation scores during procedure, duration of procedure, patient and surgeon satisfaction, additional rescue medication, and bolus doses were not statistically different (P > .05). The total amount of remifentanil administered was significantly lower in the infusion group than that in the bolus group (P = .031). Conclusions: For central venous access device procedures under monitored anesthesia care, remifentanil use in both infusion and bolus techniques could provide sufficient sedation and analgesia without serious adverse effects. Total remifentanil consumption amount in infusion group is lower than that in the bolus group. (c) 2021 American Society of PeriAnesthesia Nurses. Published by Elsevier Inc. All rights reserved.Öğe Continuous intravenous versus intermittent bolus midazolam with remifentanil during arteriovenous fistula placement with monitored anesthesia care in chronic renal failure patients: a randomized controlled trial(K Faisal Spec Hosp Res Centre, 2020) Sagiroglu, Gonul; Baysal, AyseBACKGROUND: There is limited data on the use of intravenous continuous infusion (CI) versus intravenous intermittent bolus (IB) doses of midazolam for conscious sedation in patients with chronic renal failure. Unexpected adverse events can occur in chronic renal failure patients undergoing short procedures. OBJECTIVE: Investigate and compare the sedoanalgesic and adverse effects of intravenous continuous infusion (CI) use of midazolam with intravenous intermittent bolus (IB) doses of midazolam while using intravenous remifentanil as a rescue medication, and assess patient and surgeon satisfaction. DESIGN: Prospective, randomized, single-blind controlled study. SETTINGS: Two tertiary care hospitals. PATIENTS AND METHODS: Study included patients aged 43-81 years with a diagnosis of chronic renal failure who were referred for an arteriovenous fistula procedure with modified anesthesia care between August 2012 and April 2016. The patients were randomized to intravenous CI or IB doses of midazolam. IB doses of remifentanil were used as a rescue medication. MAIN OUTCOME MEASURES: Primary outcomes were amounts of midazolam and remifentanil medications during the operation, the amount of remifentanil as a rescue medication, and the satisfaction of patient and surgeon. SAMPLE SIZE: 116 assessed for eligibility; 99 randomized to CI (n=50) or IB doses (n=49 of midazolam). RESULTS: The total dose of midazolam by CI was greater than with midazolam by IB (P=.002). The total dose of remifentanil was higher with IB doses of midazolam in comparison to CI of midazolam (P=.001). The groups were similar in sedation and pain control, duration of procedure, recovery time, patient satisfaction and adverse events; surgeon satisfaction was greater with CI versus IB (P=.035). CONCLUSIONS: Intravenous CI midazolam during MAC provides better surgeon satisfaction then IB midazolam and can be used safely for arteriovenous fistula procedures. LIMITATIONS: Two different surgeon groups.Öğe The efficacy of thoracic epidural and paravertebral blocks for post-thoracotomy pain management(Termedia Publishing House Ltd, 2013) Sagiroglu, Gonul; Baysal, Ayse; Copuroglu, Elif; Karamustafaoglu, Yekta Altemur; Sagiroglu, Tamer; Yuksel, Volkan; Huseyin, SerhatIntroduction: The definition of pain focuses mainly on tissue damage and provides information regarding pathophysiological changes in the human being [1]. Patients experience pain as a response to this tissue damage after surgery and the pain intensity after thoracotomies is known to be severe [2]. Aim of the study: Our goal was to investigate the efficacy and adverse effects of thoracic epidural and paravertebral blocks for post-thoracotomy pain management. Material and methods: In a prospective, randomized double blinded study, patients were divided into thoracic epidural (EPI group, n = 30) and paravertebral (PVB group, n = 30) groups. A bolus dose of 10 ml of 0.25% bupivacaine was followed by a continuous infusion of 0.1 ml kg(-1) h(-1) for a total of 24 hours. A visual analog scale (VAS) was used to evaluate pain at rest (VAS-R) and after coughing (VAS-C) at baseline (after extubation), 2, 4, 12 and 24 hours after surgery. The duration of catheter insertion, morphine consumption, complications and side effects were collected. Results: In comparison of EPI and PVB groups, VAS-R and VAS-C scores were similar at baseline and at 2, 4, 12 and 24 hours after surgery (p > 0.05). The incidence of hypotension was higher and the duration of catheter insertion was longer in the EPI group in comparison to the PVB group (p = 0.038, p < 0.0001, respectively). Conclusions: For post-thoracotomy pain, both thoracic epidural analgesia and paravertebral block techniques provide sufficient pain relief. As paravertebral block is an easier and quicker technique with lower incidence of hypotension, it should be considered as a good alternative to thoracic epidural technique to establish postoperative analgesia.Öğe Half-Dose Sugammadex After Neostigmine Versus Neostigmine as a Routine Reversal Agent: A Pilot Randomized Trial(Elsevier Science Inc, 2022) Baysal, Ayse; Sagiroglu, Gonul; Dogukan, Mevlut; Ozkaynak, IsmailPurpose: The use of sugammadex at a lower dose after a routine reversal dose of neostigmine may prevent residual neuromuscular blockade (rNMB). Our goal was to investigate the effects of the use of half-dose sugammadex for reversing rNMB after administration of neostigmine, and compare these effects to a routine full-dose of neostigmine. Design: Prospective, single-blinded, randomized trial. Methods: Ninety-eight patients having lower abdominal tumor resection surgery under general anesthesia were randomized into two groups. Group N (Neostigmine) (n = 48) patients received standard reversal dose of intravenous neostigmine 0.05 mg/kg and atropine 0.02 mg/kg before extubationl Group N + S (Neostigmine + Sugammadex) (n = 50) patients received 1 mg/kg of intravenous sugammadex three minutes after a standard neostigmine reversal dose. The primary end-point was the incidence of a train-of-four (TOF) ratio less than 0.9 at tracheal extubation. Secondary end-points were periods between the start of administration of reversal agents and extubation or operating room discharge in minutes to achieve recovery of TOF ratio < 0.9 to 0.7 and TOF ratio >= 0.9. Findings: The demographic data were not different between the two groups (P >.005). The incidence of rNMB presented as TOF ratio < 0.9 to 0.7 was present in 52% of Group N patients compared to 8% in Group N + S patients (P <.0001). The time to recovery between administering reversal and extubation as well as operating room discharge in Group N were; 18.52 +/- 6.34 minutes and 23.27 +/- 6.95 minutes, respectively, whereas; in Group N + S, they were; 12.86 +/- 5.05 and 17.82 +/- 4.99 minutes, respectively. (P <.0001, P <.0001, respectively). Adverse events were similar between groups (P >.05). Conclusions: A half-dose sugammadex (1 mg/kg) after full-dose reversal of neostigmine provides a lower incidence of rNMB and shorter recovery times as compared to full-dose neostigmine reversal agent. This practice is safe and effective in case of rNMB. (C) 2021 American Society of PeriAnesthesia Nurses. Published by Elsevier Inc. All rights reserved.Öğe 'Half-Dose Sugammadex After Neostigmine Versus Neostigmine as a Routine Reversal Agent: A Pilot Randomized Trial' Response(Elsevier Science Inc, 2022) Baysal, Ayse; Sagiroglu, Gonul; Dogukan, Mevlut; Ozkaynak, Ismaildose after neostigmine a routine reversal may prevent residual neuoutcome parameter of incidence of rNMB with other clinical studies may show external validity issues. In the Letter to the Editor, the authors have a request to explain these comparisons with other clinical studies; (3) The Letter to the Editor suggested that although their primary endpoint was the incidence of a train-of-four (TOF) ratio less than 0.9 at tracheal extubation, Baysal and her colleagues did not use TOF monitoring for extubation of the patients in their clinical study. They used only clinically apparent diaphragmatic movements for extubation. The authors of the Letter to the Editor, Neira-Somoza the administration of a lower dose of sugammadex to displace the use of neostigmine with a lower dose and earlier administration of sugammadex which is another future investigation of neuromuscular reversal agents.Öğe Inadvertent Perioperative Hypothermia and Important Risk Factors during Major Abdominal Surgeries(Coll Physicians & Surgeons Pakistan, 2020) Sagiroglu, Gonul; Ozturk, Gozde Argunsah; Baysal, Ayse; Turan, Fatma NesrinObjective: A relation between inadvertent perioperative hypothermia and possible important risk factors during major abdominal surgeries was investigated. Study Design: Cross-sectional descriptive study. Place and Duration of Study: Trakya University Hospital, Edirne, Turkey during 2016-2018. Methodology: Five hundred and twenty-nine patients undergoing major abdominal surgey were divided into two groups depending on postoperative body core temperature (CTM) by the use of tympanic membrane measurement. Patients with a temperature of less than 36 degrees C indicated hypothermia group; whereas, patients with a temperature between 36 and 37.5 degrees C indicated normothermia group. The parameters that were considered as risk factors for hypothermia include; baseline characteristics, American Society of Anesthesiologists (ASA) status, comorbidities, operative type, duration of surgery, patient and operative room temperatures, intraoperative hemodynamic parameters, transfusion of fluids and packed red blood cells (PRBCs), labaratory data, and adverse events. Correlation between these parameters and inadvertent hypothermia was sought. A p-value of less than 0.05 was considered statistically significant. Results: The risk factors that showed a correlation with hypothermia include: male gender, advanced age, high ASA scores, smoking, prolonged duration of operation, transfusion of fluids and PRBCs (p<0.05). In hypothermia group, duration of operation time was longer, need for transfusion was greater, hematocrit and hemoglobin values were lower than Normothermia Group of patients (p<0.05). Hypothermia was detected in 335 (63.3%) of patients. Conclusion: In this study, important risk factors for inadvertent hypothermia were found as; male gender, advanced age, high ASA scores, smoking, prolonged duration of operation, transfusion of fluids and/or PRBCs.Öğe Investigation of Risk Factors Related to the Development of Hepatic Dysfunction in Patients with a Low and Moderate Cardiac Risk During Open-Heart Surgeries(Soc Brasil Cirurgia Cardiovasc, 2021) Baysal, Ayse; Sagiroglu, Gonul; Dogukan, Mevlut; Ozkaynak, IsmailObjective: To determine the possible risk factors associated with hepatic dysfunction during open-heart surgeries. Methods: After excluding 71 patients, 307 patients with possible low and moderate cardiac risk who underwent either coronary artery bypass graft surgery (CABG) (n=176) or valve repair surgery (mitral valve, mitral and aortic valves and/or tricuspid valve) (n=131) were investigated prospectively during a 6-month period. Hyperbilirubinemia is defined as an occurrence of a plasma total bilirubin concentration >34 mu mol/L (2 mg/dL) in any measurement during the postoperative period; the patients were divided into groups with or without postoperative hyperbilirubinemia. The collected parameters were: alanine transaminase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP), total bilirubin (TBil), gamma-glutamyl transpeptidase (GGT) and albumin. The parameters were collected preoperatively and postoperatively on days 1, 3 and 7. Preoperative, intraoperative, and postoperative risk factors were investigated. Logistic regression analysis was performed to identify the risk factors for postoperative hyperbilirubinemia. Results: Postoperative hyperbilirubinemia was observed in 7 of 176 patients (4%) who underwent CABG, and in 11 of 131 patients (8.4%) who underwent valve replacement surgeries. Independent risk factors for early postoperative hyperbilirubinemia were found as: ejection fraction (EF), aortic cross-clamp (ACC) time, intensive care unit stay and extubation time (P<0.001). In comparison to CABG procedures, postoperative hyperbilirubinemia was observed more frequently in patients undergoing valve surgeries (P=0.027). Conclusion: Low EF and prolonged ACC time are significant independentrisk factors for early postoperative hyperbilirubinemia during open-heart surgeries with cardiopulmonary bypass. Valve surgeries show a higher incidence of hyperbilirubinemia in comparison to CABG.Öğe Letter to editor on noninvasive ventilation to prevent reintubation(E-Century Publishing Corp, 2016) Baysal, Ayse; Sagiroglu, Gonul; Copuroglu, ElifWe would like to reply to the comments are as follows: 1-Our patients were published in Letter to Editor entitled Non invasive ventilation to prevent reintubation. Key methodological concerns in cardiothoracic unit by the authors Beyoglu C.A., Ozdilek A., Esquinas A.M. in Int J Clin Exp Med. The main issues that the authors Beyoglu and her collegues have put forward and our answers to these comments are as follows: 1- The patients in our study have a history of cardiac dysfunction and they underwent cardiac or thoracic surgeries and because of these reasons they are not hemoynamically in stable state, 2- The materials and methods have been well presented in our study, 3- The inclusion criterias are well established in our study. We do not wait on room air oxygen until patients have an acute respiratory failure before application of noninvasive ventilation and patient's clinical deterioration while receiving oxygen therapy via face mask is necessary to decide whether patient has respiratory distress or not. These decisions are made depending on acute respiratory failure criterias on textbooks. 4- Cardiac and thoracic surgeries are both included as these operations are involved significantly with postoperative pulmonary dysfunction because of incision on chest wall causing atelectasis, pleural opening, possible phrenic nevre injury, pain, prolonged recumbent position and reduction of diaphragmatic movement, 5- Pain is an important factor for postoperative pulmonary complications and we thank you for your comment and describe our pain relief methodology during our study, 6- The complication rates were statistically not different from each other between the groups, 7- Carbondioxide retention, hypoxia and bradycardia are a part of the definition of failure of noninvasive ventilation and bradycardia is not listed in acute respiratory failure criteria in our study.Öğe Risk factors for early mortality and morbidity after pneumonectomy(Baycinar Medical Publ-Baycinar Tibbi Yayincilik, 2014) Sagiroglu, Gonul; Copuroglu, Elif; Meydan, Burhan; Tasci, Erdal; Karamustafaoglu, Y. Altemur; Baysal, Ayse; Yoruk, YenerBackground: This study aims to investigate possible risk factors which affect the mortality and morbidity of pneumonectomy patients due to the non-small cell lung cancer (NSCLC). Methods: Demographic, clinical and pathological features of 100 patients (96 males, 4 females; mean age 58.4 +/- 8.9 years; range 38 to 82 years) who underwent pneumonectomy between April 2008 and October 2009 were retrospectively analyzed. Results: The morbidity and mortality rates were found to be 56% and 14%, respectively. The complications included cardiopulmonary in 46%, bleeding in 7%, and wound infection in 3% patients. There was no significant effect of age, sex, smoking habit, diabetes, hypertension, and coronary artery disease on 30-day morbidity and mortality. Neoadjuvant therapy (p=0.049), right pneumonectomy (p=0.01), and intraoperative blood transfusion (p=0.049) were associated with significantly increased morbidity. The duration of intensive care unit and hospital stays was significantly longer in patients with respiratory failure and bronchopleural fistula. Conclusion: Pneumonectomy is a high-risk procedure in patients with neoadjuvant therapy, right pneumonectomy, and intraoperative blood transfusion. However, we believe that it is possible to reduce the risk factors with careful preoperative evaluation, rigorous anesthetic assessment and surgical interventions.Öğe The use of oxygen reserve index in one-lung ventilation and its impact on peripheral oxygen saturation, perfusion index and, pleth variability index(Bmc, 2021) Sagiroglu, Gonul; Baysal, Ayse; Karamustafaoglu, Yekta AltemurBackground Our goal is to investigate the use of the oxygen reserve index (ORi) to detect hypoxemia and its relation with parameters such as; peripheral oxygen saturation, perfusion index (PI), and pleth variability index (PVI) during one-lung ventilation (OLV). Methods Fifty patients undergoing general anesthesia and OLV for elective thoracic surgeries were enrolled in an observational cohort study in a tertiary care teaching hospital. All patients required OLV after a left-sided double-lumen tube insertion during intubation. The definition of hypoxemia during OLV is a peripheral oxygen saturation (SpO2) value of less than 95%, while the inspired oxygen fraction (FiO2) is higher than 50% on a pulse oximetry device. ORi, pulse oximetry, PI, and PVI values were measured continuously. Sensitivity, specificity, positive and negative predictive values, likelihood ratios, and accuracy were calculated for ORi values equal to zero in different time points during surgery to predict hypoxemia. At Clinicaltrials.gov registry, the Registration ID is NCT05050552. Results Hypoxemia was observed in 19 patients (38%). The accuracy for predicting hypoxemia during anesthesia induction at ORi value equals zero at 5 min after intubation in the supine position (DS5) showed a sensitivity of 92.3% (95% CI 84.9-99.6), specificity of 81.1% (95% CI 70.2-91.9), and an accuracy of 84.0% (95% CI 73.8-94.2). For predicting hypoxemia, ORi equals zero show good sensitivity, specificity, and statistical accuracy values for time points of DS5 until OLV30 where the sensitivity of 43.8%, specificity of 64%, and an accuracy of 56.1% were recorded. ORi and SpO2 correlation was found at DS5, 5 min after lateral position with two-lung ventilation (DL5) and at 10 min after OLV (OLV10) (p = 0.044, p = 0.039, p = 0.011, respectively). Time-dependent correlations also showed that; at a time point of DS5, ORi has a significant negative correlation with PI whereas, no correlations with PVI were noted. Conclusions During the use of OLV for thoracic surgeries, from 5 min after intubation (DS5) up to 30 min after the start of OLV, ORi provides valuable information in predicting hypoxemia defined as SpO2 less than 95% on pulse oximeter at FiO2 higher than 50%.
