Use of an Endobronchial Blocker in a Patient with Tracheobronchial Anomaly for Minimally Invasive Cardiac Surgery: A Case Report.

Tracheal bronchi (TB) is a rare anomaly and is usually asymptomatic. Although it is generally not a problem when a single lumen tube is used, it may cause ventilation difficulties in the intraoperative period in procedures requiring one lung ventilation, such as minimally invasive cardiac surgery. Therefore, these difficulties may cause intraoperative and postoperative complications. While a double-lumen tube is recommended as the primary choice for one-lung ventilation in patients with TB, bronchial blockers can be used to avoid the need for tube exchange in patients who will remain intubated in the postoperative period.

The Influence of Pre-operative Pain and Anxiety on Acute Postoperative Pain in Cardiac Surgery Patients Undergoing Enhanced Recovery after Surgery.

Objective: Perioperative multimodal analgesia is an important step in enhanced recovery after surgery (ERAS) care. Many factors, such as preoperative chronic pain and anxiety, may provide information about the expected postoperative pain. In this study, we evaluated preoperative pain and anxiety and investigate their effects on acute postoperative pain in patients undergoing elective cardiac surgery. Methods: After ethics committee approval, 67 consenting patients undergoing on-pump cardiac surgery under the ERAS program were included in our prospective observational study. Pre- and postoperative pain scores were obtained using a numeric rating scale (NRS) at rest and during movement. Preoperative anxiety was assessed on a 0-10 scale, and data were recorded. The relationships between pre-operative pain/anxiety and postoperative pain were evaluated using correlation analysis. Results: In preoperative pain assessment, the percentage of patients with a pain score above 4 with NRS was 1.5%, regardless of whether they were at rest or mobilize. In postoperative pain assessment, there were 20.9% and 34.3% patients with NRS >4 at rest and mobilization, respectively. 7.5% of patients had preoperative anxiety of grade 5 or higher. While preoperative pain was not correlated with postoperative pain, preoperative anxiety had a moderate positive correlation with postoperative pain (r=0.382, P=0.003). Conclusion: The prevalence of preoperative pain in patients who underwent cardiac surgery is quite low and is not associated with postoperative pain. There is also a significant relationship between the severity of preoperative anxiety and postoperative pain.

Poor nutritional status and frailty associated with acute kidney injury after cardiac surgery: A retrospective observational study.

BACKGROUND: Acute kidney injury (AKI) is a major determinant of short- and long-term morbidity and mortality following cardiac surgery. The present study examines the effect of preoperative nutritional status and frailty on this significant adverse event. METHODS: The data of 455 patients who underwent on-pump coronary artery bypass grafting (CABG) were analyzed retrospectively. Demographic data were recorded, and intraoperative and postoperative parameters, frailty score, geriatric nutritional risk index (GNRI), and prognostic nutritional index (PNI) were calculated. Risk factors for AKI within 7 postoperative days were investigated in accordance with the kidney disease improving global outcomes classification. RESULTS: Preoperative urea and creatinine values were significantly higher (p = .006 vs. p = .006), while hemoglobin, hematocrit, and estimated glomerular filtration rate values were significantly lower (p = .011, p = .008 vs. p = .006) in the AKI group than no AKI group. In the intraoperative period, the cardiopulmonary bypass time was longer in the AKI group (p = .031), and the need for dopamine, steradine, and red blood cells transfusion was greater (p = .026, p = .038 vs. p = .015) than no AKI group. The number of patients with a frailty score of 1-3 was significantly higher in the AKI group (p = .042). Similarly, the GNRI and PNI values, indicating nutritional status, were higher in the AKI group (p = .047 vs. p = .024). The independent risk factors for AKI were a GNRI of <91, the intraoperative need for dobutamine, preoperative serum creatinine of >1.3, and hemoglobin of <10 (p < .05). CONCLUSIONS: Malnutrition and frailty are strongly associated with AKI after CABG. Clinicians can effectively predict the risk of AKI through an evaluation of frailty and nutritional scores, which can be easily calculated in the preoperative period.

Anesthetic Management of Left Ventricular Assist Device Exchange in a Patient with Intracranial Hemorrhage.

The gold standard treatment for end-stage heart failure is heart transplantation; however, the rate of transplantation remains inadequate because of the paucity of organ donation. The left ventricular assist device (LVAD) has been used as a bridge therapy before transplantation. The LVAD is being used increasingly because it reduces mortality despite the accompanying morbidities. Therefore, the anesthetic management of LVAD-related morbidities is important and requires experience and knowledge. Herein, we describe a 60-year-old male patient with an LVAD with complaints of right hemiparesis, dysphasia, and facial paralysis. We aim to present the anesthetic management of a patient with intracranial hemorrhage who underwent LVAD exchange due to thrombosis.

Dextrose administration may reduce the incidence of postoperative nausea and vomiting after laparoscopic cholecystectomy: a double blind randomized controlled trial.

BACKGROUND: Postoperative nausea and vomiting (PONV) is the most common and undesirable of the complications associated with anesthesia, leading to discomfort in patients and extended hospital stays. The present study evaluates and compares the effects of preoperative/intraoperative dextrose infusion on PONV in patients undergoing laparoscopic cholecystectomy (LC). METHODS: This prospective, double-blind, randomized controlled study included 93 ASA I-II LC patients who were divided into three groups. Group P received a 10 mL/kg/h rate 5% Dextrose infusion, applied preoperatively for 30 minutes, followed by the same infusion rate of Ringer's lactate until the end of surgery. Group I received a 10 mL/kg/h rate of Ringer's lactate preoperatively for 30 minutes and the same infusion rate of 5% Dextrose during the operation. The control group (Group C) received a Ringer's lactate solution infusion in the pre- and intraoperative periods at a rate of 10 mL/kg/h. The demographic data, PONV, hemodynamic variables, pain scores, blood glucose (BG) values, and antiemetic and analgesic requirements of the participants were recorded. RESULTS: Preoperative BG values were similar in all groups, whereas intraoperative and postoperative BG levels were higher in Group P and Group I, respectively (P=0.020, P=0.010) than in Group C. The incidence of PONV was decreased in groups P and I (38.7% and 25.8%, respectively) compared to Group C (P=0.015). The antiemetic postoperative drug usage for 6 hours was significantly lower in Group P (P=0.005). CONCLUSIONS: Preoperative dextrose infusion may be suggested for PONV prophylaxis as a safe and effective method following LC.

Effects of intraarticular tramadol, magnesium and ketamine on postoperative pain in arthroscopic meniscectomy / Efeitos de tramadol, magnésio e cetamina por via intra-articular sobre a dor pós-operatória em meniscectomia artroscópica

Abstract Objective: Postoperative pain control is important in terms of early recovery and rehabilitation in arthroscopic meniscectomy. For this purpose, we aimed to compare the effects of intraarticular tramadol, magnesium, and ketamine with combinations of pericapsular bupivacaine on postoperative pain and recovery in arthroscopic meniscectomy. Methods: Ninety patients who underwent arthroscopic meniscectomy were enrolled in the study. Group T was given tramadol, Group K was given ketamine, and Group M was given magnesium reconstituted intraarticularly, and all groups received periarticular bupivacaine. Comparisons were made in terms of the patients' postoperative Visual Analogue Scale scores with and without movement, need for additional analgesics, first analgesic time, mobilization times, adverse effects, and satisfaction with the analgesics. Results: The Visual Analogue Scale scores were lowest in Group T at 0 minutes, and were higher in the 15th and 30th minutes and 1st, 2nd, and 6th hours. Visual Analogue Scale values with movement were found to be high in Group M at 0 and 15 minutes, but they were found to be higher in group T in the 30th minute, 1st, 2nd and 6th hour. The groups were similar in terms of postoperative additional analgesic use, number of analgesic use, and satisfaction with analgesics; however, the first analgesic time was earlier in Group M, and the first mobilization time was earlier in Group K. Conclusion: Intraarticular ketamine enables early mobilization and less need for additional analgesics, it also provides a better analgesic effect in comparison with intraarticular tramadol and magnesium.

Resumo Objetivo: O controle da dor pós-operatória é importante para recuperação e reabilitação precoces em meniscectomia artroscópica. Portanto, nosso objetivo foi comparar os efeitos de tramadol, magnésio e cetamina administrados por via intra-articular em associação com bupivacaína pericapsular sobre a dor e a recuperação após meniscectomia artroscópica. Métodos: Noventa pacientes submetidos à meniscectomia artroscópica foram incluídos no estudo. O Grupo T recebeu tramadol, o Grupo K recebeu cetamina e o Grupo M recebeu magnésio em doses reconstituídas por via intra-articular e todos os grupos receberam bupivacaína por via periarticular. As avaliações foram feitas mediante comparação dos escores em escala visual analógica no pós-operatório dos pacientes em movimento e em repouso, necessidade de analgésicos adicionais, tempo até a primeira necessidade de analgésico, tempo de mobilização, efeitos adversos e satisfação com os analgésicos. Resultados: Os escores da escala visual analógica foram menores no minuto zero e maiores nos minutos 15 e 30 e nas horas 1, 2 e 6 no Grupo T. Os escores da escala visual analógica em movimento foram maiores nos minutos zero e 15 no Grupo M e maiores no minuto 30 e nas horas 1, 2 e 6 no Grupo T. Os escores dos grupos foram semelhantes em relação à necessidade de analgésico adicional no pós-operatório, ao consumo de analgésico e à satisfação com os analgésicos, mas os tempos até a primeira necessidade de analgesia e até a primeira mobilização foram mais curtos nos grupos M e K, respectivamente. Conclusão: A administração intra-articular de cetamina permite mobilização precoce e diminui a necessidade de analgésicos adicionais, além de proporcionar um melhor efeito analgésico em comparação com tramadol e magnésio por via intra-articular.

[Effects of intraarticular tramadol, magnesium and ketamine on postoperative pain in arthroscopic meniscectomy]. / Efeitos de tramadol, magnésio e cetamina por via intra­articular sobre a dor pós­operatória em meniscectomia artroscópica.

OBJECTIVE: Postoperative pain control is important in terms of early recovery and rehabilitation in arthroscopic meniscectomy. For this purpose, we aimed to compare the effects of intraarticular tramadol, magnesium, and ketamine with combinations of pericapsular bupivacaine on postoperative pain and recovery in arthroscopic meniscectomy. METHODS: Ninety patients who underwent arthroscopic meniscectomy were enrolled in the study. Group T was given tramadol, Group K was given ketamine, and Group M was given magnesium reconstituted intraarticularly, and all groups received periarticular bupivacaine. Comparisons were made in terms of the patients' postoperative Visual Analogue Scale scores with and without movement, need for additional analgesics, first analgesic time, mobilization times, adverse effects, and satisfaction with the analgesics. RESULTS: The Visual Analogue Scale scores were lowest in Group T at 0 minutes, and were higher in the 15th and 30th minutes and 1st, 2nd, and 6th hours. Visual Analogue Scale values with movement were found to be high in Group M at 0 and 15 minutes, but they were found to be higher in group T in the 30th minute, 1st, 2nd and 6th hour. The groups were similar in terms of postoperative additional analgesic use, number of analgesic use, and satisfaction with analgesics; however, the first analgesic time was earlier in Group M, and the first mobilization time was earlier in Group K. CONCLUSION: Intraarticular ketamine enables early mobilization and less need for additional analgesics, it also provides a better analgesic effect in comparison with intraarticular tramadol and magnesium.

Obesity is still a risk factor in coronary artery bypass surgery.

OBJECTIVE: Even with the improvements in surgical techniques and perioperative care, obesity is still a risk factor for occurrence of adverse events following cardiac surgery. In this observational, retrospective study, we aimed to document the effects of obesity on surgical outcomes in patients undergoing coronary artery bypass surgery and find out the effects of improvements in cardiac surgery. METHODS: Between January 2011 and March 2013, isolated coronary artery bypass surgery was performed on 790 patients. The body mass index values of the patients were calculated and patients were divided into two groups; below 30 were classified as non-obese group whereas above 30 were classified as obese group. The odds ratio was obtained by using univariate analysis in order to document the effects of obesity on outcomes. RESULTS: There were 548 (69.3%) patients in non-obese group, whereas 242 (30.7%) patients in obese group. The cardiopulmonary bypass (80.47±23.58 vs. 80.89±28.46, p=0.449) and aortic clamp times (54.13±16.60 vs. 54.19±19.85, p=0.511) and number of bypass grafts (3.09±1.02 vs. 2.96±1.00, p=0.11) were comparable between the groups. The mean number of fresh frozen plasma used was higher in obese patients (1.37±1.75 vs. 1.48±4.63, p=0.02). Intubation time was higher in obese patients (10.57±6.87 vs. 12.71±35.31, p=0.014). Total amount of postoperative drainage was higher in non-obese patients (766.77±472.27 vs. 648.72±371.39, p<0.001). The superficial infection/mediastenitis (0.4% vs. 2.5%, p=0.012), dehiscence (0.2% vs. 3.7%, p<0.001) and postoperative renal failure rates (4.7% vs. 8.7%, p=0.031) were higher in obese patients. The incidence of atrial fibrillation was lower in obese patients (19.7% vs. 12.8%, p=0.019). The mortality (0.5% vs. 1.7%, p=0.210) and postoperative stroke rates (1.1% vs. 0.8%, p=1.000) were similar in both groups. CONCLUSION: We documented that obesity is still a risk factor for occurrence of postoperative adverse events. We believe that improved perioperative care together with meticulous regimens can improve postoperative outcomes in patients undergoing coronary artery bypass surgery.

Ventilation during cardiopulmonary bypass did not attenuate inflammatory response or affect postoperative outcomes.

INTRODUCTION: Cardiopulmonary bypass causes a series of inflammatory events that have adverse effects on the outcome. The release of cytokines, including interleukins, plays a key role in the pathophysiology of the process. Simultaneously, cessation of ventilation and pulmonary blood flow contribute to ischaemia-reperfusion injury in the lungs when reperfusion is maintained. Collapse of the lungs during cardiopulmonary bypass leads to postoperative atelectasis, which correlates with the amount of intrapulmonary shunt. Atelectasis also causes post-perfusion lung injury. In this study, we aimed to document the effects of continued low-frequency ventilation on the inflammatory response following cardiopulmonary bypass and on outcomes, particularly pulmonary function. METHODS: Fifty-nine patients subjected to elective coronary bypass surgery were prospectively randomised to two groups, continuous ventilation (5 ml/kg tidal volume, 5/min frequency, zero end-expiratory pressure) and no ventilation, during cardiopulmonary bypass. Serum interleukins 6, 8 and 10 (as inflammatory markers), and serum lactate (as a marker for pulmonary injury) levels were studied, and alveolar- arterial oxygen gradient measurements were made after the induction of anaesthesia, and immediately, one and six hours after the discontinuation of cardiopulmonary bypass. RESULTS: There were 29 patients in the non-ventilated and 30 in the continuously ventilated groups. The pre-operative demographics and intra-operative characteristics of the patients were comparable. The serum levels of interleukin 6 (IL-6) increased with time, and levels were higher in the nonventilated group only immediately after discontinuation of cardiopulmonary bypass. IL-8 levels significantly increased only in the non-ventilated group, but the levels did not differ between the groups. Serum levels of IL-10 and lactate also increased with time, and levels of both were higher in the non-ventilated group only immediately after the discontinuation of cardiopulmonary bypass. Alveolar-arterial oxygen gradient measurements were higher in the non-ventilated group, except for six hours after the discontinuation of cardiopulmonary bypass. The intubation time, length of stay in intensive care unit and hospital, postoperative adverse events and mortality rates were not different between the groups. CONCLUSION: Despite higher cytokine and lactate levels and alveolar-arterial oxygen gradients in specific time periods, an attenuation in the inflammatory response following cardiopulmonary bypass due to low-frequency, low-tidal volume ventilation could not be documented. Clinical parameters concerning pulmonary and other major system functions and occurrence of postoperative adverse events were not affected by continuous ventilation.

Comparison of effects of epidural bupivacaine and intravenous meperidine analgesia on patient recovery following elective abdominal aortic surgery.

BACKGROUND: The efficacy of epidural anesthesia and analgesia in management of perioperative stress has been established. Perioperative pain management strategies decrease surgical complications and aid recovery. In this study, we aimed to document and compare the efficacy of epidural bupivacaine and intravenous meperidine on recovery of patients with elective abdominal aortic surgery performed under general anesthesia. MATERIAL AND METHODS: Patients undergoing elective abdominal aortic surgery between February 2009 and November 2011 were studied prospectively. Patients were randomized into epidural bupivacaine (n=40) and intravenous meperidine (n=40) groups regarding postoperative analgesia strategy. The preoperative demographic characteristics, perioperative outcomes, postoperative adverse effects of analgesia strategy, time to initiate oral intake, sedation scores, visual analogue scale results, and mobility scores were compared. RESULTS: The mean ages of the patients were 61.7±8.1 in the epidural group and 59.4±9.7 in the intravenous group (p>0.05). The preoperative demographic characteristics of the patients were comparable between the groups. There were no statistically significant differences between groups regarding anesthesia times, intubation times, intensive care unit stay, hospital length of stay, postoperative vomiting, and postoperative cardiac, renal, and cerebral complications. Postoperative nausea was more prevalent in the meperidine group (p<0.05). In the epidural group, time to begin oral intake was shorter, sedation scores and visual analogue scale results were lower, and mobility scores were higher (p<0.05 each). CONCLUSIONS: Epidural analgesia allowed earlier recovery compared to intravenous analgesia in patients undergoing elective abdominal aortic surgery, but did not affect postoperative outcomes and complications.

Hydroxyethyl starch 6%, 130/0.4 vs. a balanced crystalloid solution in cardiopulmonary bypass priming: a randomized, prospective study.

BACKGROUND: Since the advent of cardiopulmonary bypass, many efforts have been made to avoid the complications related with it. Any component of the pump participates in occurrence of these adverse events, one of which is the type of prime solution. In this study, we aimed to compare the effects of 6% hydroxyethyl starch 130/0.4 with a commonly used balanced electrolyte solution on postoperative outcomes following coronary bypass surgery. METHODS: Two hundred patients undergoing elective coronary bypass surgery were prospectively studied. The patients were randomized in to two groups. First group received a balanced electrolyte solution and the second group received 6% hydoxyethyl starch 130/0.4 as prime solution. The postoperative outcomes of the patients were studied. RESULTS: The mean age of the patients was 61.81 ± 10.12 in the crystalloid group whereas 61.52 ± 9.29 in the HES group. There were 77 male patients in crystalloid group and 74 in HES group. 6% hydroxyethyl starch 130/0.4 did not have any detrimental effects on renal and pulmonary functions. The intensive care unit stay and postoperative hospital length of stay were shorter in hydroxyethyl starch group (p < 0.05 for each). Hydroxyethyl starch did not increase postoperative blood loss, amount of blood and fresh frozen plasma used, but it decreased platelet concentrate requirement. It did not have any effect on occurrence of post-coronary bypass atrial fibrillation (p > 0.05). CONCLUSIONS: 6% hydroxyethyl starch 130/0.4 when used as a prime solution did not adversely affect postoperative outcomes including renal functions and postoperative blood transfusion following coronary bypass surgery.

Surgical treatment of amplatzer embolus in a secundum atrial septal defect patient.

A secundum atrial septal defect is the most common congenital heart defect. Transcatheter treatment of secundum atrial septal defects is a popular and less invasive alternative to surgery. Procedural complications may occur in a wide spectrum, particularly device embolus as the most emergent one, but luckily they do not commonly occur in the clinical setting. Mortality from adverse events related to transcatheter treatment strategies is twentyfold higher than that of primary elective surgical closure. Here, we report an Amplatzer device embolus in a secundum atrial septal defect patient. The device was successfully removed with surgery, postoperative course was uneventful, and the patient was discharged from the hospital on the 5(th) postoperative day.

Hyaluronan based heparin free coated open and closed extracorporeal circuits for high risk coronary revascularization.

This prospective randomized study compares the inflammatory response and fibrinolytic activation of fully coated/uncoated and open/closed extracorporeal circuits (ECC) in high risk patients. Over a 2-month period, 48 patients with EuroSCOREs 6 or greater undergoing coronary revascularization were prospectively randomized to one of the four perfusion protocols: Group 1: Closed and totally hyaluronan based heparin free coated (Vision HFO-GBS-HF, Gish Biomedical, Rancho Santa Margarita, CA) ECC with a soft-shell coated venous reservoir (SVR11S2-HFC, Gish Biomedical) and a hard-shell cardiotomy (CAPVRF44, Gish Biomedical) (n = 12); Group 2: Closed and totally uncoated identical ECC with soft-shell uncoated venous reservoir and a hard-shell cardiotomy (n = 12); Group 3: Open, totally hyaluronan based heparin free coated ECC (n = 12); and Group 4: Control-open, uncoated ECC (n = 12). Blood samples were collected at T1: Baseline; T2: 15 minutes after cardiopulmonary bypass (CPB) initiation; T3: before cessation of CPB; T4: 15 minutes after protamine reversal, and T5: in the intensive care unit. Serum IL-6 levels were significantly lower at T2 in all study groups, at T3 for coated groups, and T4 for closed+coated group (p < .05 versus control). Creatine kinase M-band (MB) levels in coronary sinus blood demonstrated well preserved myocardium after CPB in both coated groups versus Control (p < .05). Neutrophil CD11b/CD18 levels were significantly lower for all study groups versus control at T2, for both coated groups at T3 and only for closed + coated group at T4 (p < .05). Postoperative hemorrhage (mL) was 510 +/- 40 in closed + coated and 536 +/- 40 in open + coated groups (control: 784 +/- 48, p < .05). No significant differences in thrombin-antithrombin complex and free plasma hemoglobin were observed. Desorbed protein amount on ECC (mg/dL) was 1.7 +/- .01 in closed+coated, 2.01 +/- .01 in open+coated, and 3.3 +/- .015 in control groups (p < or = .05). Use of a closed and completely heparin free coated ECC may reduce neutrophil degradation, cytokine release characterized by improved clinical outcomes including reduced blood loss, reduced requirement for inotropes, and reduced atrial fibrillation.

Dexmedetomidine as a substitute for remifentanil in ambulatory gynecologic laparoscopic surgery.

OBJECTIVE: To compare dexmedetomidine with remifentanil in desflurane based ambulatory gynecologic laparoscopic surgery, in respect to its effects on orientation, discharge time, nausea-vomiting, and postoperative analgesic need. METHODS: Sixty 20-40 year old ASA I-II patients undergoing gynecologic laparoscopic surgery were randomized into 2 groups. This study was performed in the operating theaters of the Hacettepe University Faculty of Medicine, Hacettepe, Turkey in 2004 as a prospective, randomized, and double blinded study. The remifentanil group (group R), and dexmedetomidine group (group D) received a bolus of 1 microg/kg over 10 minutes, followed by 0.2 microg/kg/minute peroperative infusion of remifentanil, and 0.4 microg/kg/hour of dexmedetomidine. Hemodynamic parameters, time to extubation, and to orientation to person, place, and date, postoperative nausea, vomiting, pain, analgesic requirement at home, and satisfaction with anesthesia were recorded. RESULTS: Demographic, hemodynamic data, postoperative pain scores, and discharge time were similar in both groups. Time to extubation, to orientation to person, to place and date were shorter in group R. Postoperative nausea, vomiting, and analgesic requirements at home were less in group D. CONCLUSION: This study demonstrated that dexmedetomidine infusion causes a relatively slow recovery with reduced postoperative nausea, vomiting, and analgesic requirements, and similar hemodynamics compared to remifentanil in ambulatory laparoscopic surgeries. It may be an alternative to remifentanil in ambulatory anesthesia.

Spinal anesthesia in Kartageners syndrome.

Kartageners syndrome, an autosomal recessive disorder is a combination of dextrocardia situs inversus, bronchiectasis and sinusitis. We report a 22-year-old woman with this syndrome scheduled for appendectomy. Spinal anesthesia was preferred for the patient with this rare disorder due to the relative advantages of the regional technique over general anesthesia.