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Doğan S, Öztürk O, Aydoğan Diş S, Argun Barış S, Doğan NÖ. Elderly-onset pulmonary sarcoidosis: A radiological approach to diagnosis. Sarcoidosis Vasc Diffuse Lung Dis 2023; 40:e2023028. [PMID: 37712365 PMCID: PMC10540715 DOI: 10.36141/svdld.v40i3.14829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/12/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND AND AIM The aim was to compare the radiological and clinical characteristics of sarcoidosis between elderly and non-elderly patients. METHODS This retrospective observational study was carried out in patients with sarcoidosis. Elderly-onset sarcoidosis was defined as sarcoidosis diagnosed in patients ≥65 years-old. Patients were stratified by age (≥65 years versus <65 years) and radiological and clinical data were compared between age groups. RESULTS Of the 163 patients, 38 (23.3%) were in the elderly group and 125 (76.7%) were in the non-elderly group. Elderly patients more frequently demonstrated arthralgia (50% vs. 12.8%, p<0.001), coronary artery disease (15.8% vs. 2.4%, p=0.005), congestive heart failure (13.2% vs. 0.8%, p=0.003), pneumonia (7.9% vs. 0.8%, p=0.04), and pleural fluid (18.4% vs. 0.0%, p<0.001). Clinical remission was significantly more likely in younger patients than in the elderly (76.8% vs. 55.3%, p=0.01). The clinical course to chronic-progressive disease was similar in both groups (p=0.635). Radiologically, lymph nodes measuring 10-25 mm in the short axis (89.5% vs. 72.6%, p=0.032), usual interstitial pneumonia pattern (10.5% vs. 0.8%, p=0.011), and main pulmonary artery diameter above 30 mm (34.2% vs. 16.0%, p=0.014) were significantly more frequent in the elderly group. Elderly patients tended to demonstrate Scadding stage I and II sarcoidosis (39.5% and 31.6%). CONCLUSIONS Presentation of elderly-onset sarcoidosis appears to differ from young-onset sarcoidosis. Radiologically, lymph node enlargement and the pattern of fibrosis may be distinctive.
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Doğan S, Güldiken GS, Alpaslan B, Barış SA, Doğan NÖ. Impact of COVID-19 pneumonia on interstitial lung disease: semi-quantitative evaluation with computed tomography. Eur Radiol 2023:10.1007/s00330-023-09441-2. [PMID: 36764951 PMCID: PMC9918400 DOI: 10.1007/s00330-023-09441-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 01/04/2023] [Accepted: 01/14/2023] [Indexed: 02/12/2023]
Abstract
OBJECTIVES To evaluate the CT scores and fibrotic pattern changes in interstitial lung disease (ILD) patients, with and without previous COVID-19 pneumonia. METHODS Patients with ILD (idiopathic pulmonary fibrosis (IPF) and connective tissue disease-associated ILD (CTD-ILD)) were retrospectively enrolled in the study which consisted of patients who had COVID-19 pneumonia while the control group had not. All patients had two CT scans, initial and follow-up, which were evaluated semi-quantitatively for severity, extent, and total CT scores, fibrosis patterns, and traction bronchiectasis. RESULTS A total of 102 patients (pneumonia group n = 48; control group n = 54) were enrolled in the study. For both groups, baseline characteristics were similar and CT scores were increased. While there was a 4.5 ± 4.6 point change in the total CT score of the COVID-19 group, there was a 1.2 ± 2.7 point change in the control group (p < 0.001). In the IPF subgroup, the change in total CT score was 7.0 points (95% CI: 4.1 to 9.9) in the COVID-19 group and 2.1 points (95% CI: 0.8 to 3.4) in the control group. Seven patients (14.6%) in the COVID-19 group progressed to a higher fibrosis pattern, but none in the control group. CONCLUSIONS Semi-quantitative chest CT scores in ILD patients demonstrated a significant increase after having COVID-19 pneumonia compared to ILD patients who had not had COVID-19 pneumonia. The increase in CT scores was more prominent in the IPF subgroup. There was also a worsening in the fibrosis pattern in the COVID-19 group. KEY POINTS • The impact of COVID-19 pneumonia on existing interstitial lung diseases and fibrosis is unclear. • COVID-19 pneumonia may worsen existing interstitial lung involvement with direct lung damage and indirect inflammatory effect. • COVID-19 pneumonia may affect existing lung fibrosis by triggering inflammatory pathways.
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Affiliation(s)
- Sevtap Doğan
- Department of Radiology, Faculty of Medicine, Kocaeli University, 41380, Kocaeli, Turkey.
| | - Gözde Selvi Güldiken
- grid.411105.00000 0001 0691 9040Department of Pulmonary Diseases, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Burcu Alpaslan
- grid.411105.00000 0001 0691 9040Department of Radiology, Faculty of Medicine, Kocaeli University, 41380 Kocaeli, Turkey
| | - Serap Argun Barış
- grid.411105.00000 0001 0691 9040Department of Pulmonary Diseases, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Nurettin Özgür Doğan
- grid.411105.00000 0001 0691 9040Department of Emergency Medicine, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
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Abstract
ABSTRACT A 56-year-old man underwent 68Ga-DOTATATE PET/CT with suspicion of a pancreatic neuroendocrine tumor. However, in this imaging, a mass with 68Ga-DOTATATE uptake was observed not in pancreas but in the duodenojejunal junction. Abdominal tomography confirmed that the heterogeneously enhanced mass was originated from duodenum. The patient was operated, and the histopathology result was evaluated as low-risk gastrointestinal stromal tumor. Although there was low or no specific binding to gastrointestinal stromal tumor cells for all 68Ga-labeled DOTA peptides, uptake of 68Ga-DOTATATE was observed incidentally in this case.
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Kanat BH, Solmaz ÖA, Bozdağ P, Doğan S, Kutluer N, Kurt F, Yazar FM, Aydin Y, Öndes B. Chronic appendicitis: the process from pre-diagnosis to pathology. Eur Rev Med Pharmacol Sci 2021; 25:7898-7902. [PMID: 34982452 DOI: 10.26355/eurrev_202112_27639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Chronic appendicitis (CA) is a rare medical condition. CA is characterized by a less severe and almost continuous abdominal pain. It has a clinical picture lasting longer than 1-2 days and extending over weeks, months, even years. The exact etiology of CA is unclear. Certain resources have reported it as the cause of partial obstruction in the lumen of the appendix. PATIENTS AND METHODS Our study was carried out with the approval of the Clinical Research Ethics Committee. A retrospective analysis was performed between August 2018 and March 2020. RESULTS It was determined that 207 appendectomies were performed during the retrospective scan period. The data of 182 of these patients could be accessed fully and we could get answers to the criteria we thought. Only 8 of the patients screened were likely to be diagnosed with chronic appendicitis in the preoperative period. CA was found in 1 of the 8 patients (12.5%) who underwent surgery after a preliminary diagnosis of CA. Two patients were reported as malignant (25%), 3 patients (37.5%) as reactive lymphoid hyperplasia, and 1 patient as peri appendicitis (12.5%). Bleeding and congestion were reported in the last patient (12.5%). CONCLUSIONS The diagnosis of chronic appendicitis is made by pathological examination. It may not always be possible to consider "chronic appendicitis" as a preliminary diagnosis. This should still be kept in mind. In our opinion, it is a bit difficult to make a preliminary diagnosis of chronic appendicitis and make a surgical decision. We believe that controlled and prospective studies can shed more light on chronic appendicitis.
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Affiliation(s)
- B H Kanat
- Malatya Turgut Özal University Training and Research Hospital, Malatya, Turkey.
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Şahinoğlu E, Argun Barış S, Doğan S, Karadenizli A, Başyiğit İ. A CASE WITH SYSTEMIC LUPUS ERITHEMATOSUS MIMICKING COVID-19 PNEUMONIA. jmed 2021. [DOI: 10.26650/iuitfd.2021.912861] [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: 11/20/2022] Open
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Yavuz E, Yayla E, Cebeci SE, Kırımlı E, Gümüştakım RŞ, Çakır L, Doğan S. Parental beliefs and practices regarding childhood fever in Turkish primary care. Niger J Clin Pract 2016; 20:93-98. [PMID: 27958254 DOI: 10.4103/1119-3077.181318] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Fever is a very common problem in pediatric age and is one of the most common reasons parents seek medical attention. We aimed to investigate beliefs, habits, and concerns of Turkish parents regarding their children's fever. MATERIALS AND METHODS We performed a cross-sectional survey which was conducted as face-to-face interviews by family physicians from April to June 2014 in family healthcare centers in nine different cities in Turkey. Parents with a child with fever aged between 0 and 14 years were interviewed. The participants were asked questions about sociodemographic data, the definition and measurement of fever, antipyretics, and other interventions used to reduce fever before presenting to the primary care center. RESULTS A total of 205 parents participated in this study. Ninety-four parents (45.8%) measured fever with a thermometer prior to presentation. Only 36 parents (38%) used the thermometer correctly. Thirty-eight parents (18.5%) knew the correct temperature definition of fever for the measured site. A mercury-in-glass thermometer was the choice for most parents (78%) and preferred site for measurement was axillary region (85%). The fever was treated prior to arrival by 171 parents (83.4%). Paracetamol was the most frequently used antipyretic. Fifty-four parents (31.5%) failed to administer the correct antipyretic dose, and 73 parents (42.6%) failed to give the antipyretics at proper intervals. One hundred and fifty-three parents (67%) believed that if not treated fever could cause convulsions. CONCLUSION We conclude that parents share important misconceptions about definition, treatment, and consequences of childhood fever and tend to treat fever before seeking medical care with a substantial rate of wrong doses and wrong intervals.
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Affiliation(s)
- E Yavuz
- 1st Family Healthcare Center, Rize, Turkey
| | - E Yayla
- 5th Family Healthcare Center, Afyon, Turkey
| | - S E Cebeci
- Serdivan Family Healthcare Center, Sakarya, Turkey
| | - E Kırımlı
- Beykoz 5th Family Healthcare Center, İstanbul, Turkey
| | | | - L Çakır
- Yenimahalle Family Healthcare Center, Ordu, Turkey
| | - S Doğan
- Bayrakli 4th Family Healthcare Center, İzmir, MD, Turkey
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Aykut M, Erman OK, Doğan S. Variability in Population Density of House Dust Mites of Bitlis and Muş, Turkey. J Med Entomol 2016; 53:513-518. [PMID: 26921859 DOI: 10.1093/jme/tjw009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 02/03/2016] [Indexed: 06/05/2023]
Abstract
This study was conducted to investigate the relationship between the number of house dust mites/g dust and different physical and environmental variables. A total of 1,040 house dust samples were collected from houses in Bitlis and Muş Provinces, Turkey, between May 2010 and February 2012. Overall, 751 (72.2%) of dust samples were mite positive. The number of mites/g dust varied between 20 and 1,840 in mite-positive houses. A significant correlation was detected between mean number of mites and altitude of houses, frequency of monthly vacuum cleaning, number of individuals in the household, and relative humidity. No association was found between the number of mites and temperature, type of heating, existence of allergic diseases, age and structure of houses. A maximum number of mites were detected in summer and a minimum number was detected in autumn.
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Affiliation(s)
- M Aykut
- Science and Technology Application and Research Center, Dicle University, Diyarbakır, Turkey ,
| | - O K Erman
- Department of Biology, Science Faculty, Atatürk University, Erzurum, Turkey , and
| | - S Doğan
- Department of Biology, Arts & Sciences Faculty, Erzincan University, Erzincan, Turkey
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Ulutabanca H, Acer N, Küçük A, Doğan S, Tümtürk A, Kurtsoy A, Sağıroğlu A, Bilgen M. Chiari type I malformation with high foramen magnum anomaly. Folia Morphol (Warsz) 2015; 74:402-6. [DOI: 10.5603/fm.2015.0059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Revised: 11/01/2014] [Accepted: 11/03/2014] [Indexed: 11/25/2022]
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Bulut A, Zorlu Y, Topkaya R, Aktaş B, Doğan S, Kurt H, Yücesan G. Macrocyclic Cu(ii)-organophosphonate building block with room temperature magnetic ordering. Dalton Trans 2015; 44:12526-9. [DOI: 10.1039/c5dt01596k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A novel macrocyclic Cu(ii)-organophosphonate building block displaying high temperature magnetic ordering, and the structure of [{Cu(2,2′-bpy)}2(HO3P(CH2)8PO3H2)4] (1).
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Affiliation(s)
- A. Bulut
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
| | - Y. Zorlu
- Department of Chemistry
- Gebze Technical University
- Kocaeli
- Turkey
| | - R. Topkaya
- Department of Physics
- Gebze Technical University
- Kocaeli
- Turkey
| | - B. Aktaş
- Department of Physics
- Gebze Technical University
- Kocaeli
- Turkey
| | - S. Doğan
- Department of Bioengineering
- Yildiz Technical University
- Istanbul
- Turkey
| | - H. Kurt
- Department of Engineering Physics
- Istanbul Medeniyet University
- Kadikoy
- Turkey
| | - G. Yücesan
- Department of Bioengineering
- Yildiz Technical University
- Istanbul
- Turkey
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Doğan S, Özyüncü Ö, Atak Z, Turgal M. Perinatal outcome in cases of isolated single umbilical artery and its effects on neonatal cord blood gas indices. J OBSTET GYNAECOL 2014; 34:576-9. [PMID: 24867412 DOI: 10.3109/01443615.2014.919578] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Abstract We aimed to evaluate perinatal outcomes and blood gas indices of isolated single umbilical artery (SUA). In this retrospective study, 134 fetuses with SUA were evaluated. A total of 77 (57.4%) fetuses with isolated SUA (iSUA) were compared with maternal age-matched 95 fetuses with double umbilical arteries (DUA), with respect to pregnancy outcome and umbilical cord blood gas indices. The incidence of SUA in our cohort was 1.04%. Patients with iSUA had lower neonatal birth weight compared with the control group (2,635 ± 972 g vs 2,991 ± 669 g; p = 0.009). Small for gestational age (SGA) frequency was higher in the group of iSUA when compared with fetuses with DUA (17.4% vs 5.4%; p = 0.03). Regarding the umbilical cord blood gas, the parameters were comparable between the two groups. SUA has a favourable obstetric outcome as long as the accompanying malformations are ruled out. Furthermore, neonatal cord blood gas parameters in fetuses with iSUA do not differ from fetuses with DUA.
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Affiliation(s)
- S Doğan
- Department of Obstetrics and Gynecology, Akdeniz University, Faculty of Medicine , Antalya , Turkey
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Oksay T, Naziroğlu M, Doğan S, Güzel A, Gümral N, Koşar PA. Protective effects of melatonin against oxidative injury in rat testis induced by wireless (2.45 GHz) devices. Andrologia 2012; 46:65-72. [PMID: 23145464 DOI: 10.1111/and.12044] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/27/2012] [Indexed: 01/19/2023] Open
Abstract
Wireless devices have become part of everyday life and mostly located near reproductive organs while they are in use. The present study was designed to determine the possible protective effects of melatonin on oxidative stress-dependent testis injury induced by 2.45-GHz electromagnetic radiation (EMR). Thirty-two rats were equally divided into four different groups, namely cage control (A1), sham control (A2), 2.45-GHz EMR (B) and 2.45-GHz EMR+melatonin (C). Group B and C were exposed to 2.45-GHz EMR during 60 min day(-1) for 30 days. Lipid peroxidation levels were higher in Group B than in Group A1 and A2. Melatonin treatment prevented the increase in the lipid peroxidation induced by EMR. Also reduced glutathione (GSH) and glutathione peroxidase (GSH-Px) levels in Group D were higher than that of exposure group. Vitamin A and E concentrations decreased in exposure group, and melatonin prevented the decrease in vitamin E levels. In conclusion, wireless (2.45 GHz) EMR caused oxidative damage in testis by increasing the levels of lipid peroxidation and decreasing in vitamin A and E levels. Melatonin supplementation prevented oxidative damage induced by EMR and also supported the antioxidant redox system in the testis.
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Affiliation(s)
- T Oksay
- Department of Urology, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - M Naziroğlu
- Department of Biophysics, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - S Doğan
- Department of Biophysics, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - A Güzel
- Department of Urology, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - N Gümral
- Department of Physiology, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - P A Koşar
- Department Medical Biology and Genetics, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
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Oksay T, Nazıroğlu M, Ergün O, Doğan S, Özatik O, Armağan A, Özorak A, Çelik Ö. N-acetyl cysteine attenuates diazinon exposure-induced oxidative stress in rat testis. Andrologia 2012; 45:171-7. [DOI: 10.1111/j.1439-0272.2012.01329.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2012] [Indexed: 11/30/2022] Open
Affiliation(s)
- T. Oksay
- Department of Urology; Faculty of Medicine; Suleyman Demirel University; Isparta; Turkey
| | - M. Nazıroğlu
- Department of Biophysics; Faculty of Medicine; Suleyman Demirel University; Isparta; Turkey
| | - O. Ergün
- Department of Urology; Faculty of Medicine; Suleyman Demirel University; Isparta; Turkey
| | - S. Doğan
- Department of Biophysics; Faculty of Medicine; Suleyman Demirel University; Isparta; Turkey
| | - O. Özatik
- Department of Obstetrics and Gynecology; Faculty of Medicine; Suleyman Demirel University; Isparta; Turkey
| | - A. Armağan
- Department of Urology; School of Medicine; Bezmialem Vakif University; Istanbul; Turkey
| | - A. Özorak
- Department of Urology; Faculty of Medicine; Suleyman Demirel University; Isparta; Turkey
| | - Ö. Çelik
- Department of Biophysics; Faculty of Medicine; Suleyman Demirel University; Isparta; Turkey
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Nazıroğlu M, Çelik Ö, Özgül C, Çiğ B, Doğan S, Bal R, Gümral N, Rodríguez AB, Pariente JA. Melatonin modulates wireless (2.45 GHz)-induced oxidative injury through TRPM2 and voltage gated Ca(2+) channels in brain and dorsal root ganglion in rat. Physiol Behav 2011; 105:683-92. [PMID: 22019785 DOI: 10.1016/j.physbeh.2011.10.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 10/04/2011] [Accepted: 10/05/2011] [Indexed: 01/12/2023]
Abstract
We aimed to investigate the protective effects of melatonin and 2.45 GHz electromagnetic radiation (EMR) on brain and dorsal root ganglion (DRG) neuron antioxidant redox system, Ca(2+) influx, cell viability and electroencephalography (EEG) records in the rat. Thirty two rats were equally divided into four different groups namely group A1: Cage control, group A2: Sham control, group B: 2.45 GHz EMR, group C: 2.45 GHz EMR+melatonin. Groups B and C were exposed to 2.45 GHz EMR during 60 min/day for 30 days. End of the experiments, EEG records and the brain cortex and DRG samples were taken. Lipid peroxidation (LP), cell viability and cytosolic Ca(2+) values in DRG neurons were higher in group B than in groups A1 and A2 although their concentrations were increased by melatonin, 2-aminoethyldiphenyl borinate (2-APB), diltiazem and verapamil supplementation. Spike numbers of EEG records in group C were lower than in group B. Brain cortex vitamin E concentration was higher in group C than in group B. In conclusion, Melatonin supplementation in DRG neurons and brain seems to have protective effects on the 2.45 GHz-induced increase Ca(2+) influx, EEG records and cell viability of the hormone through TRPM2 and voltage gated Ca(2+) channels.
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Affiliation(s)
- M Nazıroğlu
- Department of Biophysics, Medicine Faculty, Süleyman Demirel University, Isparta, Turkey.
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Bekar A, Doğan S, Abaş F, Caner B, Korfali G, Kocaeli H, Yilmazlar S, Korfali E. Risk factors and complications of intracranial pressure monitoring with a fiberoptic device. J Clin Neurosci 2008; 16:236-40. [PMID: 19071023 DOI: 10.1016/j.jocn.2008.02.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Accepted: 02/12/2008] [Indexed: 02/03/2023]
Abstract
We prospectively investigated the complications associated with intraparenchymal intracranial pressure (ICP) monitoring using the Camino intracranial pressure device. A fiberoptic ICP monitoring transducer was implanted in 631 patients. About half of the patients (n=303) also received an external ventricular drainage set (EVDS). The durations (mean+/-SD) of ICP monitoring in patients without and with an EVDS were 6.5+/-4.4 and 7.3+/-5.1 days, respectively. Infection occurred in 6 patients with only an ICP transducer (6/328, 1.8%) and 24 patients with an EVDS also (24/303, 7.9%). The duration of monitoring had no effect on infection, whereas the use of an EVDS for more than 9 days increased infection risk by 5.11 times. Other complications included transducer disconnection (2.37%), epidural hematoma (0.47%), contusion (0.47%), defective probe (0.31%), broken transducer (0.31%), dislocation of the fixation screw (0.15%), and intraparenchymal hematoma (0.15%). In conclusion, intraparenchymal ICP monitoring systems can be safely used in patients who either have, or are at risk of developing, increased ICP.
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Affiliation(s)
- A Bekar
- Department of Neurosurgery, School of Medicine, University of Uludag, Görükle, 16059 Bursa, Turkey.
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Affiliation(s)
- F. Yun
- Virginia Commonwealth University, Department of Electrical Engineering, Richmond, VA 23284, USA
| | - S. Doğan
- Virginia Commonwealth University, Department of Electrical Engineering, Richmond, VA 23284, USA
- Also at Atatürk University, Faculty of Art & Science, Department of Physics, 25240 Erzurum, Turkey
| | - Y. T. Moon
- Virginia Commonwealth University, Department of Electrical Engineering, Richmond, VA 23284, USA
| | - Y. Fu
- Virginia Commonwealth University, Department of Electrical Engineering, Richmond, VA 23284, USA
| | - J. Xu
- Virginia Commonwealth University, Department of Electrical Engineering, Richmond, VA 23284, USA
| | - D. Johnstone
- Virginia Commonwealth University, Department of Electrical Engineering, Richmond, VA 23284, USA
| | - H. Morkoç
- Virginia Commonwealth University, Department of Electrical Engineering, Richmond, VA 23284, USA
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Ozçakar L, Erol O, Doğan S, Sener D, Akinc A. Severe osteoporosis after early orchidectomy: is it inevitable? BJU Int 2003; 92:652-3. [PMID: 14511058 DOI: 10.1046/j.1464-410x.2003.04442.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
OBJECTIVE Reports of large series of patients who had undergone successful cranial neurosurgery without hair removal led part of our team to abandon the practice of shaving patients' heads pre-operatively. The aim of this study was to assess whether this change in routine, which was implemented in 1992, has affected the rate of postoperative infection in our cranial surgery patients. METHODS A group of patients whose heads were shaved pre-operatively was compared to a group whose hair was not shaved prior to cranial surgery. The latter patients had their hair washed with shampoo and 4% chlorhexidine within 24 hours of their operation. In the operating room, the surgical site was scrubbed for 8-10 minutes with 4% chlorhexidine diluted with water, and then cleansed with 10% povidone-iodine solution. Prophylactic antibiotics were administered for 3 days. RESULTS We performed 1,038 cranial procedures without hair removal. The procedures included craniotomy for tumour, trauma, aneurysm, other vascular lesions and intracerebral haemorrhage (n = 847), stereotactic biopsy (n = 90), stereotactic craniotomy (n = 34), ventriculoperitoneal shunt placement (n = 27), surgical treatment of infection with aspiration of brain abscess or resection of infected tissue (n = 14), microvascular decompression for trigeminal neuralgia or hemifacial spasm (n = 11), and other miscellaneous procedures (n = 15). We observed 13 postoperative wound infections (1.25%), including 9 deep (0.87%) and 4 superficial infections (0.39%). There was no significant difference between the rate of infection in patients whose heads were shaven (12/980) and the rate in those whose hair was spared (13/1038) (p > 0.05). In addition. there were no other problems related to the surgical preparation technique in the latter group. CONCLUSION Cranial surgery without hair removal is safe and does not increase the risk of surgical wound infection. Patients naturally prefer to keep their full head of hair. We believe that preoperative hair removal is not necessary in preparation for any type of cranial neurosurgery.
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Affiliation(s)
- A Bekar
- Uludağ University School of Medicine. Department of Neurosurgery, Bursa, Turkey
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Tokuç G, Doğan O, Ayan I, Kebudi R, Doğan S, Demiryont M, Camlica H. Prognostic value of proliferating cell nuclear antigen immunostaining in pediatric rhabdomyosarcomas. Acta Paediatr Jpn 1998; 40:573-9. [PMID: 9893293 DOI: 10.1111/j.1442-200x.1998.tb01993.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND The levels of proliferating cell nuclear antigen (PCNA) are almost negligible in long-term quiescent cells and increase dramatically during the cell cycle. Recently, the monoclonal antibodies to PCNA have been used to demonstrate the proliferative component of paraffin-embedded tumor tissues. It has been shown to be available as a simple histological marker of proliferative activity and the PCNA labeling index has been correlated with the prognosis of several malignant neoplasms. METHODS Formalin fixed, paraffin embedded tissue specimens of 29 primary pediatric rhabdomyosarcomas were immunostained by using an anti-PCNA monoclonal antibody (DAKO PCNA PC10). The relationship between the PCNA index and prognosis, clinicopathological features and survival were assessed retrospectively. RESULTS The mean PCNA index for the whole series was 54%. There was no correlation between PCNA index and any of the clinicopathological characteristics. However, patients having tumors with a high (> 54%) PCNA index demonstrated significantly lower survival rates than tumors with a low (< 54%) PCNA index (P = 0.01). Moreover, there were significantly more patients with relapse or progressive disease in the high PCNA index group (P = 0.005). CONCLUSION The PCNA labeling index can be a useful prognostic factor and a good indicator of recurrence and/or survival in patients with rhabdomyosarcoma.
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Affiliation(s)
- G Tokuç
- Institute of Oncology, Department of Pediatric Oncology, University of Istanbul, Turkey.
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Abstract
Granulocyte colony-stimulating factor (G-CSF) has been used to reduce the duration and/or degree of neutropenia of different etiologies in recent years. In this study, experience with the use of G-CSF (Neupogen, Roche) after 123 courses of highly myelosuppressive chemotherapy administered to 31 (20 female, 11 male) patients with pediatric solid tumors is reported. G-CSF was initiated at a white blood cell (WBC) count of 918 +/- 452/microL (100-2000), at a dose of 7.6 +/- 2.3 micrograms/kg/d (5-14) subcutaneously for 5.2 +/- 2.4 days (2-18). G-CSF was given for afebrile neutropenia after 82 and for febrile neutropenia after 41 courses. Only in two episodes where G-CSF was given for afebrile neutropenia, fever developed. The average hospitalization period for febrile neutropenia was 9.8 +/- 3.3 days (5-20). Chemotherapy could be given on scheduled time and dosage in 90% of the courses in which G-CSF was used for afebrile neutropenia. G-CSF was well tolerated. Bone pain was observed in two patients and urticaria in one patient. In conclusion, G-CSF increased the WBC count effectively, there were only two febrile episodes in 82 courses in children receiving G-CSF for afebrile neutropenia, it was well tolerated, and it was found to be feasible for use in a developing country.
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Affiliation(s)
- I Ayan
- Oncology Institute, University of Istanbul, Turkey
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Abstract
A case report is presented of a Class III malocclusion with a Class III skeletal pattern and maxillary retrusion. The patient, an 11-year-old girl, was treated with an orthopaedic face mask in conjunction with standard Edgewise mechanics. Treatment was completed after 14 months, and proved to be stable following the active treatment and at recall 4 years later.
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Affiliation(s)
- S Doğan
- Ege University, Faculty of Dental Medicine, Bornova, Turkey
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Ertürk N, Doğan S. The effect of neuromuscular diseases on the development of dental and occlusal characteristics. Quintessence Int 1991; 22:317-21. [PMID: 1891607] [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: 12/29/2022]
Abstract
Fourteen patients suffering from primary muscular disease (myopathies), including seven with Duchenne's muscular dystrophy, were compared to 11 patients whose neuromuscular disorders were of neuropathic origin. Mesioclusion was observed only in the group with Duchenne's muscular dystrophy. Posterior crossbite, anterior open bite, mouth breathing, and large tongue were also more prevalent in the group with myopathies, especially the Duchenne's patients, than they were in the group with neurogenic disorders. The Duchenne's patients exhibited a statistically significant delay in dental emergence, unlike the patients with other myopathies and those with neurogenic disorders. Dentition and occlusion may be more affected in patients with myopathies, especially Duchenne's muscular dystrophy, than they are in patients with neurogenic disorders.
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Affiliation(s)
- N Ertürk
- Aegean University, Faculty of Dental Medicine, Bornova-Izmir, Turkey
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Doğan S, Ertürk N. [Delaire's architectural and structural cranio-facial analysis in cephalometric evaluation]. Turk J Orthod 1989; 2:103-13. [PMID: 2489130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In this study, the main rules of architectural and Structural cranio-facial analysis developed by Delaire is explained. This architectural and structural cranio-facial analysis of the lateral cephalometric radiograph clarifies the mutual balance of the various bony structures of the cranium and face, individualizes certain of the structures, and specifies their normal of pathologic relationships. Five cephalometric, films were evaluated according to Delaire's architectural and structural analysis and according to classic cephalometric analysis. The results we obtained are presented.
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Doğan S. [Nursing observations in the psychiatric clinics]. Turk Hemsire Derg 1988; 38:33-6. [PMID: 3194985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Doğan S, Haerdi W. [Preconcentration and separation of traces of mercury by reduction of metallic copper and determination by atomic absorption spectrometry without flame]. Anal Chim Acta 1975; 76:345-54. [PMID: 238427 DOI: 10.1016/s0003-2670(01)85406-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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