Browsing by Author "Yentür A."

Now showing 1 - 8 of 8
  • No Thumbnail Available
    Item
    Upper extremity compartment syndromes following vipera snake bite
    (2002) Keleş G.T.; Yentür A.; Sakarya M.
    The aim of this report is present two cases of compartment syndrome following snake envenomations. Both of patients, which are 63-year-old woman and 2-year-old boy, were bitten on their hands by snake. After 48 hours, in the both patients hands oedema and pain progressed. Later echymosis, cyanosis and paresthesia developed and the pulses could not be detected anymore. Both of the cases were diagnosed as compartment syndrome and after fasciotomy they recoveried completely. We postulate that compartment syndrome may occur following snake bites as a delayed local complication, even if signs of systemic poisoning are missing.
  • No Thumbnail Available
    Item
    The Effect of Hyperventilation on the Increase of Cerebral Blood Flow Velocity Secondary to Deflation of the Tourniquet in Lower Extremity Surgery; [Alt Ekstremite Cerrahisinde Turnike Açilmasina Sekonder Beyin Kan Akim Hizi Artişina Hiperventilasyonun Etkisi]
    (2003) Sakarya M.; Topçu I.; Özkol M.; Yentür A.; Yercan H.; Okçu G.
    We aimed to investigate the effects of hyperventilation on cerebral blood flow (CBF) in order to maintain normocapnia following the deflation of the tourniquet in patients undergoing elective lower extremity operation during intravenous general anesthesia (TIVA). In all cases(n=15), anaesthesia was induced by 2 mg kg-1 propofol, 1 μg kg-1 remifentanyl and 1 mg kg-1 vecuronium, and was maintained with the mixture of 50 % air-O2, 6-8 mg kg-1 dk-1 propofol and 0.5 μg kg-1 dk-1 remifentanyl infusions. Patients were randomized into two groups. Group I (n=7) was ventilated by f=10/min and V T=8 mL kg-1. Patients in group II (n=8) were ventilated similarly as group I until the deflation of tourniquet, and following deflation by increasing respiratory frequency adjusted to maintain end-tidal CO 2 (PETCO2) between 30-35 mmHg. Middle cerebral artery (MCA) flow velocity was measured by transcranial Doppler ultrasonography as mean (m-MCA) and peak (p-MCA) values. Data were recorded 5 minutes before tourniquet deflation (control), and every minute in the first 10 minutes following deflation While there has been no difference for p-MCA, m-MCA and PaCO2 in group II, significant increases (p<0.05) in mean MCA flow velocity were obtained in 2nd, 3rd and 4th minutes in group I. Maximum increase was obtained in 3rd minute and determined as 52±7 cm/sec. The increases of PaCO2 were obtained in 2 to 6 minutes (p<0.05) and maximum level was 41±1 mmHg (25 %±3 %) in 3rd minute. We concluded that, the increase of MCA flow velocity and CBF related to the increase of PaCO2 after deflation of the pneumatic tourniquet may be prevented by maintaining normocapnia provided by increasing minute ventilation.
  • No Thumbnail Available
    Item
    Snake bite and compartment syndrome (two case report); [Yilan zehirlenmesi ve kompartman sendromu (iki olgu nedeniyle)]
    (2003) Tezcan Keleş G.; Toprak V.; Yentür A.; Sakarya M.
    The aim of this report is to present two cases of compartment syndrome following snake bite. Both patients (63-year-old woman and 2-year-old boy) were bitten by snakes from their hands. 48 hours later oedema and pain in both patients hands progressed. Echymosis, cyanosis and paresthesia developed and the pulses could not be palpated. Both of the cases were diagnosed as compartment syndrome and fasciotomy resulted in recovered completely. We postulate that compartment syndrome may occur following snake bites as a delayed localized complication, even if signs of systemic poisoning do not exist.
  • No Thumbnail Available
    Item
    Importance of post anesthesia care unit: Pneumothorax developed after panendoscopy and supraclavicular mass excision (case report); [Anestizi sonrasi bakim ünitesinin önemi: Panendoskopi ve supraklaviküler kitle eksizyonu sonrasi gelişen pnömotoraks (olgu sunumu)]
    (2004) Tezcan Keleş G.; Toprak V.; Yentür A.; Sakarya M.
    Acute respiratory distress in early postoperative period is a severe clinical life threating state. Pneumothorax is one of the reasons. The possibility of a postoperative pneumothorax should be considered following central line placement, intercostal blocks, neck dissections, tracheostomy, or intra-abdominal procedures. A chest radiograph should be taken in the recovery room if there is a possibility of pneumothorax following any of the above procedures. In this case report, we present a postoperative pneumothorax was diagnosed and treated in 60 year old male patient, in the postoperative recovery room, after panendoscopy and diagnostic supraclavicular mass excission. Although there is no clinical sign in the perioperative period, we emphasize the importance of postoperative close monitorization and follow-up.
  • No Thumbnail Available
    Item
    Assessment of neuromuscular and haemodynamic effects of cisatracurium and vecuronium under sevoflurane-remifentanil anaesthesia in elderly patients
    (2004) Keleş G.T.; Yentür A.; Çavuş Z.; Sakarya M.
    Background and objective: Neuromuscular block times, quality of muscle relaxation for tracheal tube insertion, and the haemodynamic effects after cisatracurium and vecuronium under sevoflurane-remifentanil anaesthesia were compared in elderly patients. Methods: The study was performed in 40 patients over 65 yr of age. Anaesthesia was induced with thiopental, and maintained with sevoflurane in N2O/O2 and remifentanil. Cisatracurium 0.15 mg kg-1 or vecuronium 0.1 mg kg-1 were administered after induction. Intubation was attempted when neuromuscular block was 95%. Onset time, clinical duration of action, recovery index, spontaneous recovery time and tracheal intubation conditions were assessed. Haemodynamic parameters were also monitored. Results: The average ages of the patients were 72.5 ± 5.1 and 73.6 ± 6.3 in the cisatracurium and vecuronium groups, respectively. Onset time was significantly shorter after vecuronium, 158 ± 34s vs. 200 ± 50s, respectively. Recovery index was significantly shorter after cisatracurium, 19.5 ± 7.5s vs. 33.7 ± 18.6s (P < 0.05). Clinical duration and spontaneous recovery time were similar in both groups as well as haemodynamic variables. Conclusions: In elderly patients, vecuronium has a faster onset time while cisatracurium has a shorter recovery index under sevoflurane-remifentanil anaesthesia.
  • No Thumbnail Available
    Item
    Evaluation of piroxicam-β-cyclodextrin as a preemptive analgesic in functional endoscopic sinus surgery
    (Associacao Brasileira de Divulgacao Cientifica, 2010) Keleş G.T.; Topçu I.; Ekici Z.; Yentür A.
    The preemptive analgesic efficacy and adverse effects of preoperatively administered piroxicam-β-cyclodextrin for post-endoscopic sinus surgery pain was determined in a prospective, double-blind, randomized, clinical study. Seventy-five American Society of Anesthesiologists status I-II patients, aged 18-65 years, were divided into three groups with similar demographic characteristics: group 1 received 20 mg piroxicam-β-cyclodextrin, group 2 received 40 mg piroxicam-β-cyclodextrin and group 3 received placebo orally before induction of general anesthesia. A blinded observer recorded the incidence and severity of pain at admission to the post-anesthesia care unit (PACU), at 15, 30, and 45 min in the PACU, and 1, 2, 4, 6, and 24 h postoperatively. All patients received patient-controlled morphine analgesia during the postoperative period and consumption was recorded for 24 h. During the PACU period, mean visual analogue scale values were significantly lower in groups 1 and 2 compared to group 3 (P < 0.05). During the postoperative period, morphine consumption was 3.03 ± 2.54, 2.7 ± 2.8, and 5.56 ± 3.12 mg for each group, respectively (P < 0.05). As a side effect, bleeding was observed in groups 1 and 3, nausea and vomiting in all groups, and edema only in group 3. However, no significant differences were detected in any of the parameters analyzed, which also included epigastric pain, constipation/diarrhea and headache. Similar hematological test results were obtained for all groups. Preemptive administration of piroxicam-β-cyclodextrin effectively reduced analgesic consumption, and 40 mg of the drug was more effective than 20 mg piroxicam-β-cyclodextrin without side effects during the postoperative period.
  • No Thumbnail Available
    Item
    Underestimated role of alcohol at skin disinfection: Lipid dissolving property when used in association with conventional antiseptic agents; [Alkolün cilt dezenfeksiyonunda önemsenmeyen rolü: Klasik antiseptik ajanlarla birlikte kullanıldıǧında lipit çözücü özelliǧi]
    (Turkiye Klinikleri Journal of Medical Sciences, 2010) Yentür A.; Topçu I.; Işik R.; Deǧerli K.; Sürücüoǧlu S.
    Aim: After conventional aqueous disinfectant solutions, it was shown that microorganisms were still protected in hair follicles. We hypothesized that those aqueous disinfectant solutions when used in combination with alcohol may be more effective on the inhibition of recolonization of skin and therefore catheter tip colonization. & Materials and methods: Skin surface samples were taken from epidural catheter insertion sites prior to catheterization, and before and after disinfection with different combinations of povidone-iodine, chlorhexidine, and alcohol. Before catheter removal, cultures were taken once more and tips of the catheters were cultured. & Results: Catheter tip colonization and skin culture results of 10% povidone-iodine + 70% alcohol group were significantly lower than those of other groups after disinfection. & Conclusion: Sequential use of alcohol and povidone-iodine is the most effective combination for limiting re-colonization of skin flora. Contamination of catheters appears to take place at removal or via the spread of these re-colonized bacteria along the catheter tract. © TÜBİTAK.
  • No Thumbnail Available
    Item
    Comparison of thoracic epidural and paravertebral analgesia for postoperative pain control after thoracotomy; [Torakotomi sonrasi postoperatif aǧri kontrolünde torakal epidural ve paravertebral bloǧun karşilaştirilmasi]
    (Turkish Society of Algology, 2016) Öztürk T.; Topcu I.; Yaldiz S.; Özbakkaloǧlu A.; Aşik K.; Yentür A.
    Objectives: In the present randomized, controlled, and blinded study, the effects of thoracic paravertebral analgesia were compared to those of epidural analgesia on postoperative pain, hemodynamics, and respiration rate following thoracotomy. Methods: Patients scheduled for elective open-lung surgery were included. One hour prior to surgery, thoracic epidural catheters were used in 18 patients (ED group), and ultrasound-guided paravertebral catheters were used in 17 patients (PV group). Standard general anesthesia was administered to all. Following anesthesia, postoperative analgesia of levobupivacaine 0.1% and morphine 0.1 mg mL-1 was administered via catheter. Patient-controlled analgesia (PCA) regime with tramadol was initiated, and amounts of local anesthetics and tramadol demanded and delivered within the first 24 hours were recorded. Visual analog scale (VAS) pain score, sedation score, side effects, and vital signs (blood pressure, heart rate, and respiratory rate) were assessed by an observer blinded to patient data at 1, 2, 3, 4, 6, 12, and 24 hours. Results: Differences in PCA bolus demands and deliveries were not statistically significant between the PV group (26.8±1.3 and 33.1±4.5) and the ED group (25.1±3.5 and 32.5±4.3). Neither were differences in VAS scores statistically significant (p=0.3). Rates of sedation among the PV group were lower than those of the ED group at 1 hour (p=0.001). Five patients in the ED (%28) group experienced hypotension (p=0.02). Conclusion: Paravertebral block with levobupivacaine 0.1% and morphine 0.1 mg mL-1 may be an alternative form of pain relief following thoracotomy. © 2016 Türk Algoloji Derneǧi.