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Akcaer M, Karakas A, Tok D, Coskun O, Sari S. Eosinophilic pneumonia: Daptomycin-induced lung complication. Med Mal Infect 2016; 46:166-8. [PMID: 26965755 DOI: 10.1016/j.medmal.2016.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 11/23/2015] [Accepted: 01/19/2016] [Indexed: 11/19/2022]
Affiliation(s)
- M Akcaer
- Department of Infectious Diseases and Clinical Microbiology, Gülhane Military Medical Academy and School of Medicine, Etlik, Ankara, Turkey.
| | - A Karakas
- Department of Infectious Diseases and Clinical Microbiology, Gülhane Military Medical Academy and School of Medicine, Etlik, Ankara, Turkey
| | - D Tok
- Department of Infectious Diseases and Clinical Microbiology, Gülhane Military Medical Academy and School of Medicine, Etlik, Ankara, Turkey
| | - O Coskun
- Department of Infectious Diseases and Clinical Microbiology, Gülhane Military Medical Academy and School of Medicine, Etlik, Ankara, Turkey
| | - S Sari
- Department of Radio-diagnostics, Gülhane Military Medical Academy and School of Medicine, Etlik, Ankara, Turkey
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Ozturk M, Özkan E, Kesik V, Ozaydın S, Babacan O, Yaman H, Akgül EO, Kılıc S, Arpaci F, Ozet A, Kurt I, Demirbas S, Arslan E, Tok D. Serum chitotriosidase levels in cancer patients undergoing high dose chemotherapy and stem cell transplantation. Eur Rev Med Pharmacol Sci 2015; 19:3433-3437. [PMID: 26439039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Human chitotriosidase (ChT) is an active chitinase expressed by activated phagocytes. Increased ChT activity has been reported in systemic Candida albicans infections and in Gram-negative and Gram-positive bacterial infections, indicating that an increase in ChT activity reflects phagocyte activation. The aim of this study was to determine the changes in serum ChT activity in patients who underwent high dose chemotherapy (HDC) and stem cell transplantation (SCT), who are at an increased risk for fungal and bacterial infections due to depression of the immune system during the neutropenic period. PATIENTS AND METHODS A total of 55 SCT patients were included in the study. Serum ChT activity was determined before the initiation of HDC and during the neutropenic period after hematopoietic stem cell reinfusion on post-transplant first, fifth and tenth days. RESULTS Chitotriosidase levels before transplantation were significantly lower than the results at first, fifth and tenth days post-hematopoietic stem cell reinfusion. CONCLUSIONS Although the number of neutrophils was low, ChT enzyme activity was high in newly produced granules of neutrophils. Chitotriosidase may be supplemented as a drug for preventing and treating infections in the near future.
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Affiliation(s)
- M Ozturk
- Department of Medical Oncology, Gulhane Military Medical Academy, Ankara, Turkey.
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Tok D, Başar N, Çağlı K, Turak O, Özcan F, Kadife İ, Tok D, Gölbaşı Z, Aydoğdu S. OP-016 Impaired Coronary Flow Reserve is associated with Increased Mean Platelet Volume in Patients with Metabolic Syndrome. Am J Cardiol 2014. [DOI: 10.1016/j.amjcard.2014.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ozenc S, Iscen S, Kibrisli E, Tok D, Parlak A, Altinel O, Altinel S. Prophylactic accessory-pathway ablation in asymptomatic patients with a Wolff-Parkinson-White electrocardiographic pattern. Eur Rev Med Pharmacol Sci 2014; 18:981-984. [PMID: 24763877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVES The optimal approach is controversial in asymptomatic patients who are coincidentally found to have evidence of an accessory pathway (AP) on an ECG. The risk of sudden cardiac death (SCD) is low, and the risk of developing symptoms also appears to be low, although a wide range of incidences have been reported. In our trial, we tested the hypothesis that if prophylactic accessory-pathway ablation performed at the time of the initial electrophysiological testing would improve the long-term outcome in asymptomatic patients with a Wolff-Parkinson-White electrocardiographic pattern. PATIENTS AND METHODS Recruitment of patients began on February 1, 2004, and ended on February 5, 2009. All 110 asymptomatic patients were hospitalized and underwent electrophysiological testing the same day to assess the inducibility of atrioventricular reciprocating tachycardia. The anterograde effective refractory period of the accessory pathway was defined as the longest coupling interval at which anterograde block in the bypass tract was observed. For the statistical analysis, the statistical software SPSS version 15.0 for Windows (SPSS Inc., Chicago, IL, USA). RESULTS Of 110 asymptomatic patients with a Wolff-Parkinson-White electrocardiographic pattern, 80 patients were ablated. Ablation group consisted of these patients. Control group consisted of remaining 30 and were divided into two groups according to the anterograde effective refractory period of the accessory pathway. There was no significant difference between three groups in terms of arrhythmic events (p: 0.58). CONCLUSIONS Asymptomatic patients with the Wolff-Parkinson-White syndrome do not require prophylactic ablation, since they remain asymptomatic for many years.
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Affiliation(s)
- S Ozenc
- Department of Family Medicine, Department of Cardiology, and Department of Surgery, Diyarbakir Military Hospital, Yenisehir, Diyarbakir, Turkey.
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Ozcan F, Turak O, Canpolat U, Kanat S, Kadife I, Avcı S, Işleyen A, Cebeci M, Tok D, Başar FN, Aras D, Topaloğlu S, Aydoğdu S. Association of epicardial fat thickness with TIMI risk score in NSTEMI/USAP patients. Herz 2013; 39:755-60. [PMID: 23903366 DOI: 10.1007/s00059-013-3914-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 07/04/2013] [Indexed: 12/14/2022]
Abstract
BACKGROUND The association of epicardial adipose tissue (EAT) with coronary artery disease has been shown in previous studies. Furthermore, the relationship between EAT and acute coronary syndrome was studied recently. Herein, we investigated the relationship between EAT thickness and the thrombolysis in myocardial infarction (TIMI) risk score for non-ST-elevation myocardial infarction (NSTEMI) and unstable angina pectoris (USAP). PATIENTS AND METHODS The study included 144 patients with NSTEMI/USAP. The study population was divided into two subgroups according to TIMI risk scores as group I (≤ 4, n = 86) and group II (> 4, n = 58). Stepwise multivariable logistic regression analysis was used to assess the independent association of clinical parameters with TIMI risk score. RESULTS EAT thickness was higher in group II than in group I (8.2 ± 2.1 vs. 6.2 ± 2.2, p < 0.001). Moreover, patients in group II had higher rates of multivessel disease and Gensini score (p < 0.001). In univariate linear regression analysis, EAT was positively correlated with TIMI risk score and Gensini score. Multivariate regression analysis showed that EAT thickness (OR: 1.56, 95 % CI: 1.17-2.08, p = 0.003), LVEF (OR: 0.93, 95 % CI: 0.85-0.98, p = 0.03), and Gensini score (OR: 1.36, 95 % CI: 1.24-1.98, p = 0.002) were independently associated with a higher TIMI risk score. CONCLUSION In conclusion, EAT thickness is independently associated with TIMI risk score and may be an emerging risk factor for adverse events in NSTEMI/USAP patients.
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Affiliation(s)
- F Ozcan
- Cardiology Clinic, Türkiye Yüksek İhtisas Training and Research Hospital, 06100, Ankara, Turkey
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Tok D, Turak O, Kadife I, Ozcan F, Basar N, Caglı K, Topaloglu S, Aras D, Aydogdu S. PP-261 ECHOCARDIOGRAPHIC EPICARDIAL FAT THICKNESS IS ASSOCIATED WITH INCREASED AORTIC STIFFNESS IN PATIENTS WITH METABOLIC SYNDROME. Int J Cardiol 2013. [DOI: 10.1016/s0167-5273(13)70465-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Tok D, Kadife İ, Turak O, Özcan F, Başar N, Çağlı K, Aras D, Topaloğlu S, Aydoğdu S. OP-018 INCREASED EPICARDIAL FAT THICKNESS IS ASSOCIATED WITH LOW GRADE SYSTEMIC INFLAMMATION IN METABOLIC SYNDROME. Int J Cardiol 2013. [DOI: 10.1016/s0167-5273(13)70020-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Özcan F, Turak O, Işleyen A, Başar F, Çağli K, Topaloğlu S, Aras D, Tok D, Cebeci M, Aydoğdu S. PP-048 THE RELATIONSHIP BETWEEN SERUM HDL LEVEL AND BARE METAL STENT RESTENOSIS IN PATIENTS WITH ANGINA. Int J Cardiol 2012. [DOI: 10.1016/s0167-5273(12)70281-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Turak O, Isleyen A, Tok D, Basar F, Özcan F, Cagli K, Topaloglu S, Aras D, Aydogdu S. OP-052 USEFULNESS OF MEAN PLATELET VOLUME AS PREDICTOR OF BARE METAL STENT RESTENOSIS IN PATIENTS WITH STABLE ANGINA PECTORIS. Int J Cardiol 2012. [DOI: 10.1016/s0167-5273(12)70028-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tok D, Başar N, Çağli K, Özcan F, Turak O, Yildirir A, Özin B, Korkmaz M, Müderrisoğlu H. PP-039 DEMONSTRATION OF ISCHEMIA IN FEMALE PATIENTS WHO HAD LOW CORONARY FLOW RESERVE AND ANGINA PECTORIS WITH POSITIVE EXERCISE STRESS TEST AND NORMAL CORONARY ARTERIES. Int J Cardiol 2012. [DOI: 10.1016/s0167-5273(12)70272-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ok G, Yilmaz H, Tok D, Erbüyün K, Çoban S, Dinç G. Evaluating Sleep Characteristics in Intensive Care Unit and Non-Intensive Care Unit Physicians. Anaesth Intensive Care 2011; 39:1071-5. [DOI: 10.1177/0310057x1103900614] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Healthcare workers’ cognitive performances and alertness are highly vulnerable to sleep loss and circadian rhythms. The purpose of this study was to investigate the changes in sleep characteristics of intensive care unit (ICU) and non-ICU physicians. Actigraphic sleep parameters, Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale and Hamilton Depression Rating Scale were evaluated for ICU and non-ICU physicians on the day before shift-work and on three consecutive days after shift-work. Total sleep time, sleep latency, wakefulness after sleep onset, total activity score, movement fragmentation index, sleep efficiency, daytime naps and total nap duration were also calculated by actigraph. In the ICU physicians, the mean Pittsburgh Sleep Quality Index score was significantly higher than the non-ICU physicians (P=0.001), however mean Epworth Sleepiness Scale scores were not found significantly different between the two groups. None of the scores for objective sleep parameters were statistically different between the groups when evaluated before and after shift-work (P >0.05). However in both ICU and non-ICU physicians, sleep latency was observed to be decreased within the three consecutive-day period after shift-work with respect to basal values (P <0.001). Total sleep time, total activity score and sleep efficiency scores prior to shift-work were significantly different from shift-work and the three consecutive-days after shift-work, in both groups. Working in the ICU does not have an impact on objective sleep characteristics of physicians in this study. Large cohort studies are required to determine long-term health concerns of shift-working physicians.
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Affiliation(s)
- G. Ok
- Departmant of Anaesthesiology and Reanimation, Celal Bayar University Medical Faculty, Manisa, Turkey
| | - H. Yilmaz
- Departmant of Anaesthesiology and Reanimation, Celal Bayar University Medical Faculty, Manisa, Turkey
- Department of Neurology
| | - D. Tok
- Departmant of Anaesthesiology and Reanimation, Celal Bayar University Medical Faculty, Manisa, Turkey
| | - K. Erbüyün
- Departmant of Anaesthesiology and Reanimation, Celal Bayar University Medical Faculty, Manisa, Turkey
| | - S. Çoban
- Departmant of Anaesthesiology and Reanimation, Celal Bayar University Medical Faculty, Manisa, Turkey
| | - G. Dinç
- Departmant of Anaesthesiology and Reanimation, Celal Bayar University Medical Faculty, Manisa, Turkey
- Department of Public Health
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Gulgun M, Karaoglu A, Kesik V, Kurt B, Erdem O, Tok D, Kismet E, Koseoglu V, Ozcan O. Effect of proanthocyanidin, arginine and glutamine supplementation on methotrexate-induced gastrointestinal toxicity in rats. ACTA ACUST UNITED AC 2011; 32:657-61. [PMID: 21225016 DOI: 10.1358/mf.2010.32.9.1516694] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Methotrexate is a folate antagonist that is commonly used as an antitumor and antiarthritic drug. The aim of this study was to investigate the possible roles of exogenous glutamine (Glu), arginine (Arg) and proanthocyanidin (PA) on gut protection from methotrexate-induced intestinal damage in rats. Experimental rats were separated into eight groups. The first (sham) group received a 0.9% NaCl solution alone. The second group received intraperitoneal injections of methotrexate (20 mg/kg/day) administered on day 4 of the experiment and continued for 5 days. Rats in the other six groups were administered PA, Glu, Arg, Glu+PA, Arg+PA or Glu+Arg orally by gavage together with methotrexate and animals were sacrificed on day 8 of the experiment. All animals were sacrificed 4 days after methotrexate injection for histopathological analysis, tissue glutathione peroxidase, malondialdehyde and superoxide dismutase assays. Proanthocyanidin and Glu decreased the severity of intestinal injury and oxidant injury as evident by histopathology and changes in malondialdehyde levels. Histological analysis confirmed that PA and to a lesser extent Glu supplementation were more favorable than Arg for the protection of the small intestine from methotrexate-induced injury.
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Affiliation(s)
- M Gulgun
- Kayseri Military Hospital, Department of Pediatrics, Kayseri, Turkey.
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Caliskan M, Erdogan D, Gullu H, Tok D, Bilgi M, Muderrisoglu H. Low serum bilirubin concentrations are associated with impaired aortic elastic properties, but not impaired left ventricular diastolic function. Int J Clin Pract 2007; 61:218-24. [PMID: 21882369 DOI: 10.1111/j.1742-1241.2006.00907.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Elevated serum bilirubin concentrations protect from atherosclerotic diseases; however,it is not clear whether higher serum bilirubin concentrations in physiological ranges do the same. To investigate the association of high and low serum bilirubin concentrations with left ventricular diastolic function and aortic elastic properties.We evaluated left ventricular diastolic function and aortic elastic properties of 42 healthy subjects with hypobilirubinemia (total bilirubin 0.40 ± 0.08 mg ⁄ dl; mean age 37.0 ± 3.9) and 40 healthy subjects with hyperbilirubinemia (total bilirubin 1.56 ± 0.49 mg ⁄ dl; mean age 36.2 ± 6.0) using transthoracic second harmonic Doppler echocardiography. Age, gender, body mass index and coronary risk factors were similar between the groups, except high-sensitivity C-reactive protein (hsCRP).Left ventricular diastolic parameters were similar between the two groups. Aortic distensibility (AoD) was found to be significantly lower (11.1 ± 3.9 vs. 13.2 ± 4.9,p = 0.03) and aortic stiffness index (AoSI) (1.99 ± 0.30 vs. 1.85 ± 0.26,p = 0.02) and elastic modulus (AoEM) (2.06 ± 0.83 vs. 1.73 ± 0.68, p = 0.03;the low and high bilirubin groups, respectively) higher in the low bilirubin group.Serum total bilirubin concentration correlated with hsCRP levels, AoD, AoSI and AoEM. In conclusion, left ventricular systolic and diastolic functions were similar between hypo- and hyperbilirubinemic subjects, but aortic elastic properties were impaired in subjects with lower serum bilirubin concentrations.
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Affiliation(s)
- M Caliskan
- Cardiology Department, Konya Teaching and Medical Research Center, Baskent University, Konya, Turkey
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Keleş GT, Kurutepe S, Tok D, Gazi H, Dinç G. Comparison of antimicrobial effects of dexmedetomidine and etomidate-lipuro with those of propofol and midazolam. Eur J Anaesthesiol 2006; 23:1037-40. [PMID: 16824238 DOI: 10.1017/s0265021506000949] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2006] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVES The aim of our study was to investigate the antimicrobial effects of dexmedetomidine and etomidate-lipuro, and to compare these effects with those of midazolam and propofol on Staphylococcus aureus, Escherichia coli, Pseudomonas aeroginosa, Acinetobacter baumannii and extended-spectrum beta-lactamase Escherichia coli ( E. coli ESBL). METHODS All hypnotic dilutions were exposed to micro-organisms for 0, 30, 60, 120 and 240 min at room temperature in vitro. The inoculums taken from diluted suspensions were re-inoculated on blood agar and incubated for 18-24 h at 35 degrees C after which a count of the colonies was compared. RESULTS Midazolam reduced the viable cells of S. aureus at 30, 60, 120 and 240 min, and also completely inhibited the growth of E. coli, P. aeroginosa, A. baumannii and E. coli ESBL. Dexmedetomidine, etomidate-lipuro and propofol, however, did not inhibit any of the micro-organisms tested. CONCLUSION In vitro, midazolam had an antimicrobial effect on E. coli, P. aeroginosa, A. baumannii and E. coli ESBL. Like propofol and dexmedetomidine, etomidate-lipuro had no antimicrobial effect on any of the micro-organisms tested.
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Affiliation(s)
- G T Keleş
- University of Celal Bayar, Department of Anaesthesiology and Intensive Care, Manisa, Turkey.
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Erhan Y, Erhan E, Aydede H, Mercan M, Tok D. 445 CHRONIC PAIN AFTER LICHTENSTEIN AND POSTERIOR MESH HERNIA REPAIR. Eur J Pain 2006. [DOI: 10.1016/s1090-3801(06)60448-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
OBJECTIVES To assess the possible influence of white-coat hypertension (WCH) on coronary flow reserve (CFR). METHODS CFR was measured by means of transthoracic second harmonic Doppler echocardiography in 29 patients with WCH, 32 patients with sustained hypertension and 35 healthy volunteers. RESULTS CFR was significantly lower in the sustained hypertension group than in the WCH and the control groups, but it was not different between the WCH and the control groups (2.40 (SD 0.54), 2.77 (0.41) and 2.83 (0.60), respectively). CONCLUSION CFR is preserved in patients with WCH.
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Affiliation(s)
- D Erdogan
- Cardiology Department, Konya Teaching and Medical Research Center, Baskent University, Konya, Turkey.
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Abstract
Postoperative nausea and vomiting-related subcutaneous emphysema is an unexpected complication, especially after uneventful surgery and anesthesia. Here we report and discuss two cases of subcutaneous emphysema following severe retching and vomiting which resolved spontaneously after several days.
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Affiliation(s)
- V Toprak
- Department of Anesthesiology and Reanimation, Celal Bayar University, School of Medicine, Manisa, Turkey.
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Tok D, Yildirir A, Muderrisoglu H, Ulucam M, Korkmaz M, Ozin B, Tayfun E, Simsek V. 3P-0893 Is there an association between hyperlipidemia and coronary flow velocity reserve in syndrome X? ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)91111-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
BACKGROUND AND OBJECTIVE A need exists for a safe and effective oral preanaesthetic medication for use in children undergoing elective surgery. The study sought to define the dose of oral ketamine that would facilitate induction of anaesthesia without causing significant side-effects. METHODS We studied 80 children undergoing elective surgery under general anaesthesia who received oral ketamine 4, 6 or 8 mg kg(-1) in a prospective, randomized, double-blind placebo controlled study. We compared the reaction to separation from parents, transport to the operating room, the response to intravenous cannula insertion and application of an anaesthetic facemask, the induction of anaesthesia and recovery from anaesthesia. RESULTS In the group receiving ketamine 8 mg kg(-1), the children were significantly calmer than those of the other groups, and anaesthesia induction was more comfortable. Recovery from anaesthesia was longer in the group receiving ketamine 8 mg kg(-1) compared with the other groups, but no differences between the groups were observed after 2 h in the recovery room. CONCLUSIONS It is concluded that oral ketamine 8 mg kg(-1) is an effective oral premedication in inpatient children undergoing elective surgery.
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Affiliation(s)
- S Turhanoğlu
- Dicle University Hospital, Department of Anaesthesiology, Diyarbakir, Turkey.
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Ulker S, Tok D, Kosay S, Oyman S. Effects of ketamine, thiopental sodium and propofol on muscle contractures in rat diaphragm in vitro. Int J Exp Pathol 1991; 72:527-32. [PMID: 1742205 PMCID: PMC2002323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The effects of commonly used intravenous anaesthetic agents ketamine, thiopental sodium and propofol on the caffeine-alone or halothane-plus-caffeine-induced muscle contractures were investigated to determine safety for use in patients susceptible to malignant hyperthermia (MH). The muscle strips from rat diaphragm were exposed to one of these anaesthetic agents prior to challenge with caffeine 8 mmol/l alone or halothane 3% plus caffeine 8 mmol/l together. None of the three agents induced contractures when added alone. Ketamine 100 mumol/l and thiopental sodium 300 mumol/l augmented neither caffeine-alone nor caffeine-with-halothane contractures significantly and these two agents appear to be safe for use in MH-susceptible patients. In contrast, propofol 150 mumol/l augmented these contractile responses significantly and may not be recommended for use in patients known to be susceptible to this anaesthetic complication.
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Affiliation(s)
- S Ulker
- Department of Pharmacology, Faculty of Medicine, Ege University, Izmir, Turkey
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