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1.
Lymphat Res Biol ; 20(6): 665-670, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35245100

RESUMO

Background: Compression garments are the basis of the maintenance phase of the breast cancer-related lymphedema (BCRL) treatment. The aim of this study is to investigate the adherence to compression garment wear and the associated factors among patients with BCRL. Methods and Results: Patients who received standard therapy and training on compression garment wear from a single center were asked to fill out a 28-item questionnaire on compression garment wear. Adherence to compression garment wear and the associated factors were examined. These factors were compared between patients who were wearing and who were not wearing compression garments as recommended. The study was completed with 60 patients. Twenty-five percent of the patients used custom-made compression garment. The rate of patients wearing compression garments as per recommendation was 51.7% (n = 31). The most common reasons for not wearing/discontinuation included functional difficulties in daily life (33%) and discomfort (28.8%). Compared according to the factors with potential impact on wearing, the rate of garment wear as per recommendation was statistically significantly higher in patients who had modified radical mastectomy than in those who had breast-conserving surgery (p = 0.038). Conclusion: Although standard information was provided to the patients, the adherence to compression garments was nonoptimal. The economic status of the patients is one of the main factors affecting the choice of compression garments and thus their adherence. To improve the adherence to this method, which is the basis of maintenance treatment of lymphedema, training programs to reduce patient beliefs and anxiety that are tailored to individual needs can be useful. Clinical trial registration number: NCT04832386.


Assuntos
Linfedema Relacionado a Câncer de Mama , Neoplasias da Mama , Linfedema , Humanos , Feminino , Bandagens Compressivas , Projetos Piloto , Mastectomia , Vestuário , Linfedema/terapia
2.
Turk J Phys Med Rehabil ; 68(4): 456-463, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36589351

RESUMO

Objectives: This study aims to evaluate the efficacy and safety of thiocolchicoside (TCC) ointment treatment compared to placebo in patients with chronic mechanical low back pain (LBP) accompanied by acute muscle spasms. Patients and methods: A total of 292 adult patients (106 males, 186 females; mean age: 38.5±11.2 years; range, 18 to 64 years) were randomized to TCC group (n=147) and placebo group (n=145) in 12 centers between March 2020 and March 2021. Eight patients from each group were excluded from the analysis. The primary endpoint was pressure pain threshold (PPT) on Day 3, which was measured using a pressure algometer. Secondary endpoints were PPT on Day 7, patient, and physician Visual Analog Scales-pain (VAS-pain) on Days 3 and 7, and safety. Results: The PPT values on Day 3 was not significantly different between the treatment groups (p=0.701). Similarly, TCC and placebo group had similar VAS-pain scores over trial period (p=0.577 or higher for comparisons). Significantly higher PPT values and lower VAS-pain scores on Days 3 and 7 were observed in both groups (p<0.001 for all). In patients with a PPT value of ≥3.87, TCC arm had higher PPT on Day 3 compared to placebo (p=0.029). Three patients (two in the TCC arm and one in the placebo arm) discontinued the trial due to an adverse event. Conclusion: Topical TCC can be an appropriate option in a subset of patients with mild chronic LBP accompanied by muscle spasms. In a subset of patients with milder pain intensity, topical TCC may improve pain earlier. The results of this trial are compatible with the treatment approaches used in daily practice.

3.
Turk J Phys Med Rehabil ; 67(1): 17-24, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33948539

RESUMO

OBJECTIVES: In this study, we aimed to investigate whether there was any difference in kinesiotaping (KT) application on the upper trapezius muscle between a trained and untrained physiatrist in the management of patients with myofascial pain syndrome (MPS). PATIENTS AND METHODS: Between April 2013 and July 2015, a total of 45 patients (44 females, 1 males; mean age 31.9±8.0 years; range, 18 to 55 years) with MPS were included in this prospective, single-blind, randomized-controlled study. The patients were randomly divided into two groups. The first group (intervention group, n=24) was administered KT band with the muscle in a tense condition according to the muscle technique performed by a trained physiatrist, from the muscle origo toward its insertion point. The second group (control group, n=21) received no technique and KT was applied to the painful area by an untrained physiatrist using a randomly selected method. Primary outcome measures were pain at rest, during activity (0-10 cm visual analog scale), and threshold measurement with algometry (kg/cm2). Secondary outcome measures were function (Neck Pain and Disability Scale), degree of palpable muscle spasm, and quality of life (Nottingham Health Profile). All evaluations were performed at baseline, at three and six weeks after the treatment. RESULTS: There were significant improvements in all parameters in both groups. There were no significant differences in any parameters at six weeks. We demonstrated that KT, which was applied on active trigger points on the upper trapezius muscle by trained and untrained physiatrists, improved pain, palpable muscle spasm, neck function, quality of life, and patient satisfaction degree in patients with MPS. CONCLUSION: Our study results show that KT, which is applied by trained and untrained physiatrists, improves pain, palpable muscle spasm, neck function, quality of life in patients with MPS.

4.
Turk J Phys Med Rehabil ; 67(1): 41-47, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33948542

RESUMO

OBJECTIVES: The aim of this study was to investigate the relationship between scoliosis and upper extremity functions in patients with Duchenne muscular dystrophy (DMD). PATIENTS AND METHODS: Between January 2018 and July 2018, a total of 55 patients (54 males, 1 female; mean age: 9.9±2.9 years; range, 6 to 15 years) who were diagnosed with DMD based on the clinical, laboratory, muscle biopsy and molecular analysis results were included in this cross-sectional study. Scoliosis was evaluated and Cobb angles were measured. Functional Ambulation Scale and Brooke and Vignos scale scores were recorded. The ABILHAND-Kids questionnaire and Nine-Hole Peg Test (9-HPT) were used to assess the upper extremity functions. Hand grip strengths were also evaluated. RESULTS: The median ABILHAND-Kids scores and the hand grip strength values of the patients without scoliosis were significantly higher compared to those with scoliosis (p=0.002 and p=0.004 for right hand and p=0.012 for left hand, respectively). There was no statistically significant difference in the 9-HPT scores between the patients with and without scoliosis (p>0.05). We found a negative, significant correlation between the Cobb angle and ABILHAND-Kids scores in patients with scoliosis (r=-0.503; p=0.017). CONCLUSION: Our study results show a moderate relationship between scoliosis and upper extremity functions. Scoliosis may adversely affect upper extremity functions in patients with DMD.

5.
Lymphat Res Biol ; 19(6): 517-523, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-33601960

RESUMO

Background: Many assessments have been reported and used in evaluating lymphedema. The aim of this study was to investigate the diagnostic contribution of ultrasonography in unilateral breast cancer-related lymphedema. Methods and Results: Upper extremity circumferences were measured with a measuring tape from ulnar styloid at the wrist to the axilla at 4 cm intervals. The point with the highest difference between the upper extremities and the control point with no difference between the lower extremities were marked. Skin and subcutaneous thicknesses were measured from four quadrants (volar medial-lateral and dorsal medial-lateral) at the marked points and also subcutaneous tissue changes were graded according to the subcutaneous echogenicity grade (SEG) scale ultrasonographically. The correlations between circumferential and ultrasonographic measurements were investigated. Receiver operating characteristic curve analysis was made to estimate the diagnostic accuracy of the difference in ultrasonographic subcutaneous thickness measurements between the two arms. The study was completed with 34 female patients. Circumferential and subcutaneous tissue thickness measurements were moderately positively correlated in the volar quadrants and strongly positively correlated in the dorsal quadrants of the affected extremity. In the unaffected extremity, a strong positive correlation was identified in all quadrants. The clinical stages of lymphedema and SEG were weakly positively correlated in the volar medial quadrant. The difference between the two upper extremities was found to have a high (0.83%) sensitivity, and an acceptable (0.75%) specificity in the differentiation of Grade II and Grade III lymphedema. Conclusion: A correlation was established between circumferential measurements and ultrasonographic measurements. Ultrasonography can be used complementary to circumferential measurements in diagnosing lymphedema. Clinical trial registration number: NCT04213001.


Assuntos
Linfedema Relacionado a Câncer de Mama , Neoplasias da Mama , Linfedema , Linfedema Relacionado a Câncer de Mama/diagnóstico por imagem , Linfedema Relacionado a Câncer de Mama/etiologia , Neoplasias da Mama/complicações , Neoplasias da Mama/diagnóstico por imagem , Feminino , Humanos , Linfedema/diagnóstico por imagem , Linfedema/etiologia , Tela Subcutânea/diagnóstico por imagem , Ultrassonografia/métodos
6.
Turk J Phys Med Rehabil ; 66(4): 476-479, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33364570

RESUMO

Widespread and excessive use of smartphones is very common, and its overuse is associated with several health-related conditions. A 58-year-old man presented with a spontaneous swan-neck deformity of the third digit. On his physical examination, full passive range of motion of the finger was achieved, while active range of motion was limited due to pain. Laboratory test results were normal. Ultrasonographic imaging demonstrated digital extensor tenosynovitis of the second, third, fourth, and fifth digits. Plain radiographs of bilateral hands were normal. Magnetic resonance imaging of the affected hand revealed no mass lesion. He attended to the hand rehabilitation program. At the end of the program, his pain decreased, and he was easily able to do the finger range of motion exercises. In conclusion, smartphone addiction has an adverse influence on hand function and pinch strength. Youngsters should be aware of the harmful effects which may result from smartphone overuse.

7.
Arch Osteoporos ; 15(1): 128, 2020 08 13.
Artigo em Inglês | MEDLINE | ID: mdl-32794017

RESUMO

The burden of osteoporosis in Turkey is not well characterized. Our results indicate that osteoporosis is undertreated in Turkey with 1.35 million fractures predicted to occur from 2019 to 2023 at an associated cost of 2.42 billion USD. Interventions are needed to close the treatment gap and minimize the economic burden. PURPOSE: The number of osteoporotic fractures is expected to increase as populations age, posing a major risk to health systems and patients. We created a scorecard summarizing the burden of disease, policy framework, service provision, and service uptake for osteoporosis in Turkey and estimated the economic burden of osteoporotic fractures in Turkey. METHODS: A systematic review of osteoporosis in Turkey was performed. Gaps in the literature were supplemented by surveys with osteoporosis experts. The findings were used to populate a scorecard and burden of illness model focused on adults aged 50 to 89 years in Turkey. The scorecard provided a visual representation of osteoporosis burden and management using a traffic light color coding system. The model quantified osteoporosis-related fracture costs (2019 USD) including hospitalizations, dual-energy x-ray absorptiometry testing, hip fracture surgery, prescription drugs, and patient productivity losses. RESULTS: The scorecard showed that osteoporosis is undertreated in Turkey. Despite timely access to diagnosis, > 75% of high-risk patients fail to initiate on appropriate therapies. In 2019, the economic model predicted that 255,183 osteoporosis-related fractures would occur in Turkey with an associated annual cost of approximately 455 million USD and an average burden per 1000 at risk of 23,987 USD. The cumulative 5-year cost of 1,354,817 fractures was 2.42 billion USD. CONCLUSIONS: Approximately 1.35 million fragility fractures are predicted to occur in Turkey during the next 5 years with costs of 2.42 billion USD. Closing the treatment gap will be imperative for preventing these fractures and minimizing the burden of osteoporosis in Turkey.


Assuntos
Osteoporose , Fraturas por Osteoporose , Adulto , Idoso , Idoso de 80 Anos ou mais , Efeitos Psicossociais da Doença , Custos de Cuidados de Saúde , Humanos , Pessoa de Meia-Idade , Modelos Econômicos , Osteoporose/epidemiologia , Fraturas por Osteoporose/epidemiologia , Turquia/epidemiologia
8.
Arch Rheumatol ; 34(2): 196-203, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31497766

RESUMO

OBJECTIVES: This study aims to investigate whether fibromyalgia syndrome (FMS) represents a neuropathic pain syndrome through the use of neuropathic pain scales. PATIENTS AND METHODS: The study included 99 female patients (mean age 44.21 years; range, 18 to 65 years) who referred to Physical Therapy and Rehabilitation Department Outpatient Clinics with complaints of widespread pain and who received a clinical diagnosis of fibromyalgia based on the 1990 American College of Rheumatology diagnostic criteria and a control group consisting of 86 female patients (mean age 49.21 years; range, 18 to 65 years) who were diagnosed with acute subacromial impingement as a nociceptive pain model. All patients completed the Turkish version of the Fibromyalgia Impact Questionnaire (FIQ), the Beck Depression Scale (BDS), the 10 cm Visual Analog Scale for pain assessment, the Leeds Assessment of Neuropathic Symptoms and Signs (LANSS) pain questionnaire for neuropathic pain assessment and the painDETECT scale. RESULTS: An evaluation of the patients' symptoms indicated that complaints of numbness, burning, tingling, morning stiffness, insomnia, fatigue and weakness were significantly more common in the fibromyalgia group compared to the controls. Moreover, the mean scores of the BDS, FIQ, painDETECT and LANSS pain scale were significantly higher in the fibromyalgia group compared to the controls. Statistically significant correlations were noted between FIQ values and LANSS, and the BDS and painDETECT results in the fibromyalgia group. CONCLUSION: The present study demonstrates that sensorial symptoms such as paraesthesia, hyperalgesia and allodynia were more common and the scores of neuropathic pain scales such as painDETECT and LANSS were significantly elevated in the fibromyalgia patients compared to the control group, and these findings suggest that FMS may have a neuropathic pain component.

9.
Lymphat Res Biol ; 17(5): 543-549, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-30735097

RESUMO

Aim and Hypothesis: The standard volumeter is heavy and fragile, and using the same volumeter for different patients can result in hygiene problems. These disadvantages point to the need for the development of a new model of volumeter. The new volumeter put forward in this study is lighter, smaller, sturdier, and easier to clean, while also having its own scale. In this study, the validity of this newly designed volumeter is investigated. Materials and Methods: In the first step, the volume of standard cylinders was measured thrice using a standard volumeter and an easy-measurement volumeter, after which a total of 30 arm volumes of 15 volunteers were measured. In the final stage, the arms of 28 patients with breast cancer-related lymphedema were measured once with both volumeters and the mean results were compared. Results: There was a high degree of consistency between the measured volumes of cylinders of known volume when measured with a standard volumeter and the "Easy volumeter." The measured mean volumes with the two volumeters were assessed with paired sample t-test, resulting in a significance (p value) of 0.927, indicating no difference between the measurements of the two volumeters. The variance of measurement of the devices was assessed with a Levene's test, and the significance (p value) was obtained as 0.981. Based on this result, the null hypothesis cannot be rejected, meaning that there is no difference in the variances of measurements of the two volumeters. Likewise, a paired sample t-test was used to evaluate the differences between the mean measurements of the healthy volunteers group, and no difference was detected between the mean arm volumes measured with each volumeter (significance=0.105). The measurements between the two volumeters were also consistent in the lymphedema patient group (involved arm significance = 0.842 and normal arm significance = 0.075). Conclusion: Our study revealed the validity of the newly designed "Easy Volumeter" for the measurement of arm volumes, indicating its appropriateness for use in daily practice.


Assuntos
Braço/patologia , Pesos e Medidas Corporais/métodos , Linfedema Relacionado a Câncer de Mama/diagnóstico , Adulto , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Tamanho do Órgão , Reprodutibilidade dos Testes
10.
Lymphat Res Biol ; 16(3): 263-269, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29338639

RESUMO

BACKGROUND: In this randomized controlled study, we aimed to evaluate the effect of shoulder flexion exercise using continuous passive motion (CPM) on lymphedema during the treatment of breast cancer-related lymphedema (BCRL). METHODS: Thirty patients with BCRL were enrolled and completed the study. Fourteen patients were treated with complete decongestive therapy (CDT) and CPM in the intervention group, and 16 patients were treated with CDT alone (control group) for 15 sessions. The main outcome measures were included; the shoulder range of motion (ROM) assessed with a goniometer, limb volume difference measured using the water immersion method, function with the Disabilities of the Arm, Shoulder and Hand (DASH), and the quality of life using the Functional Assessment of Cancer Therapy for Breast Cancer (FACT-B4). Lymphedema volume measures were taken at baseline, on days 1, 2, 3, 4, 5, 10, and 15; and shoulder ROM, FACT-B4, and DASH were taken at baseline and on day 15. RESULTS: All subjects were similar at baseline. After treatment significant improvement was found in ROM, volumetric differences, DASH, and FACT-B4 scores in both groups. No significant differences were observed in the volumetric differences, ROM, and the DASH, and FACT-B4 scores between the groups, except for the FACT-B4 physical well-being subscores, which were better in intervention group. CONCLUSION: Our study results showed that CPM did not contribute to the reduction of BCRL.


Assuntos
Linfedema Relacionado a Câncer de Mama/terapia , Drenagem/métodos , Terapia por Exercício/métodos , Modalidades de Fisioterapia , Adulto , Idoso , Linfedema Relacionado a Câncer de Mama/fisiopatologia , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Qualidade de Vida , Amplitude de Movimento Articular , Ombro/fisiopatologia , Método Simples-Cego , Inquéritos e Questionários , Resultado do Tratamento
11.
J Back Musculoskelet Rehabil ; 30(4): 857-862, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28372317

RESUMO

BACKGROUND: Recently, proprioception deficits of the rotator cuff and the deltoid muscles have been suggested to play a pivotal role in the subacromial impingement syndrome (SIS). To date, there are no study has been found where the kinesthesia and joint position senses have been evaluated together in SIS. OBJECTIVE: To investigate the shoulder proprioception in patients with SIS. METHODS: Sixty-one patients with SIS and 30 healthy controls, aging between 25 and 65 years, were included in the study. Main outcome measure was proprioception, assessed with an isokinetic dynamometer. Kinesthesia, active and passive joint repositioning senses were tested at 0° and 10° external rotation. All tests were repeated 4 times and the mean of angular errors were obtained. RESULTS: The mean age was 49.14 ± 10.27 and 48.80 ± 11.09 years in patient group and in control group respectively. No significant difference was found between two groups in terms of age, gender and dominance. When involved and uninvolved shoulders of the patient group were compared, kinesthesia, active and passive joint position senses were significantly impaired in involved shoulders at all angles (P < 0.05). When involved shoulders of the patient group were compared to the control group, kinesthesia, active and passive joint position senses were significantly impaired in involved shoulders in patient group at all angles (P < 0.05) except active position sense at 0°. When uninvolved shoulders of the patient group were compared to the control group, kinesthesia at 10° was significantly impaired (P < 0.05). CONCLUSION: This study showed that shoulder proprioception was impaired in patients with SIS. This proprioceptive impairment was found not only in involved shoulders but also in uninvolved shoulders in patients with SIS.


Assuntos
Propriocepção/fisiologia , Síndrome de Colisão do Ombro/fisiopatologia , Articulação do Ombro/fisiopatologia , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Amplitude de Movimento Articular/fisiologia , Rotação , Manguito Rotador , Ombro
12.
J Occup Health ; 58(3): 297-309, 2016 Jun 16.
Artigo em Inglês | MEDLINE | ID: mdl-27108647

RESUMO

OBJECTIVE: To evaluate the participatory ergonomic method on the development of upper extremity musculoskeletal disorders and disability in office employees. METHODS: This study is a randomized controlled intervention study. It comprised 116 office workers using computers. Those in the intervention group were taught office ergonomics and the risk assessment method. Cox proportional hazards model and generalized estimating equations (GEEs) were used. RESULTS: In the 10-month postintervention follow-up, the possibility of developing symptoms was 50.9%. According to multivariate analysis results, the possibility of developing symptoms on the right side of the neck and in the right wrist and hand was significantly less in the intervention group than in the control group (p<0.05). Neck disability/symptom scores over time were significantly lower in the intervention group compared with the control group (p<0.05). CONCLUSION: The participatory ergonomic intervention decreases the possibility of musculoskeletal complaints and disability/symptom level in office workers.


Assuntos
Computadores , Avaliação da Deficiência , Ergonomia/métodos , Doenças Musculoesqueléticas/prevenção & controle , Doenças Profissionais/prevenção & controle , Trabalho/fisiologia , Adulto , Feminino , Seguimentos , Mãos/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Doenças Musculoesqueléticas/etiologia , Pescoço/fisiopatologia , Doenças Profissionais/etiologia , Postura , Modelos de Riscos Proporcionais , Medição de Risco/métodos , Avaliação de Sintomas/métodos , Extremidade Superior/fisiopatologia , Adulto Jovem
13.
Am J Phys Med Rehabil ; 95(3): 169-82, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26098920

RESUMO

OBJECTIVE: The objective of this study was to evaluate the effectiveness of proprioceptive exercises on shoulder proprioception, range of motion, pain, muscle strength, and function in patients with subacromial impingement syndrome. DESIGN: Sixty-one patients with subacromial impingement syndrome participated in this prospective, single-blind randomized controlled trial. All patients were randomly divided into two groups: control group (conventional physiotherapy, n = 30) and intervention group (proprioceptive exercise and conventional physiotherapy, n = 31). The primary outcome measures were sense of kinesthesia and active and passive repositioning for proprioception at 0 degrees and 10 degrees external rotation at 12 wks. The secondary outcome measures were pain at rest, at night, and during activities of daily living with the visual analog scale (0-10 cm), the Western Ontario Rotator Cuff index, the American Shoulder and Elbow Surgeons index, range of motion, and isometric muscle strength at both 6 and 12 wks. RESULTS: After treatment, significant improvement was found in range of motion, pain, isometric muscle strength, kinesthesia at 0 degrees external rotation, and functional tests in both groups. The intervention group showed a significant improvement in kinesthesia at 10 degrees external rotation and active and passive repositioning at 10 degrees external rotation. When groups were compared, there were no statistically significant differences in any of the parameters at 12 wks. CONCLUSIONS: Although proprioceptive exercises may provide better proprioceptive acuity, no additional positive effect on other clinical parameters was observed.


Assuntos
Terapia por Exercício/métodos , Propriocepção/fisiologia , Síndrome de Colisão do Ombro/reabilitação , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Força Muscular , Estudos Prospectivos , Amplitude de Movimento Articular , Recuperação de Função Fisiológica , Síndrome de Colisão do Ombro/fisiopatologia , Método Simples-Cego , Resultado do Tratamento
14.
Nanoscale Res Lett ; 9(1): 119, 2014 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-24629075

RESUMO

Bulk GaAs1 - xBix/GaAs alloys with various bismuth compositions are studied using power- and temperature-dependent photoluminescence (PL), Raman scattering, and atomic force microscopy (AFM). PL measurements exhibit that the bandgap of the alloy decreases with increasing bismuth composition. Moreover, PL peak energy and PL characteristic are found to be excitation intensity dependent. The PL signal is detectable below 150 K at low excitation intensities, but quenches at higher temperatures. As excitation intensity is increased, PL can be observable at room temperature and PL peak energy blueshifts. The quenching temperature of the PL signal tends to shift to higher temperatures with increasing bismuth composition, giving rise to an increase in Bi-related localization energy of disorders. The composition dependence of the PL is also found to be power dependent, changing from about 63 to 87 meV/Bi% as excitation intensity is increased. In addition, S-shaped temperature dependence at low excitation intensities is observed, a well-known signature of localized levels above valence band. Applying Varshni's law to the temperature dependence of the PL peak energy, the concentration dependence of Debye temperature (ß) and thermal expansion coefficient (α) are determined. AFM observations show that bismuth islands are randomly distributed on the surface and the diameter of the islands tends to increase with increasing bismuth composition. Raman scattering spectra show that incorporation of Bi into GaAs causes a new feature at around 185 cm-1 with slightly increasing Raman intensity as the Bi concentration increases. A broad feature located between 210 and 250 cm-1 is also observed and its intensity increases with increasing Bi content. Furthermore, the forbidden transverse optical (TO) mode becomes more pronounced for the samples with higher bismuth composition, which can be attributed to the effect of Bi-induced disorders on crystal symmetry. PACS: 78.55Cr 78.55-m 78.20-e 78.30-j.

15.
Nanoscale Res Lett ; 7(1): 656, 2012 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-23190628

RESUMO

The excitation energy-dependent nature of Raman scattering spectrum, vibration, electronic or both, has been studied using different excitation sources on as-grown and annealed n- and p-type modulation-doped Ga1 - xInxNyAs1 - y/GaAs quantum well structures. The samples were grown by molecular beam technique with different N concentrations (y = 0%, 0.9%, 1.2%, 1.7%) at the same In concentration of 32%. Micro-Raman measurements have been carried out using 532 and 758 nm lines of diode lasers, and the 1064 nm line of the Nd-YAG laser has been used for Fourier transform-Raman scattering measurements. Raman scattering measurements with different excitation sources have revealed that the excitation energy is the decisive mechanism on the nature of the Raman scattering spectrum. When the excitation energy is close to the electronic band gap energy of any constituent semiconductor materials in the sample, electronic transition dominates the spectrum, leading to a very broad peak. In the condition that the excitation energy is much higher than the band gap energy, only vibrational modes contribute to the Raman scattering spectrum of the samples. Line shapes of the Raman scattering spectrum with the 785 and 1064 nm lines of lasers have been observed to be very broad peaks, whose absolute peak energy values are in good agreement with the ones obtained from photoluminescence measurements. On the other hand, Raman scattering spectrum with the 532 nm line has exhibited only vibrational modes. As a complementary tool of Raman scattering measurements with the excitation source of 532 nm, which shows weak vibrational transitions, attenuated total reflectance infrared spectroscopy has been also carried out. The results exhibited that the nature of the Raman scattering spectrum is strongly excitation energy-dependent, and with suitable excitation energy, electronic and/or vibrational transitions can be investigated.

16.
Clin J Pain ; 28(7): 581-8, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22699130

RESUMO

OBJECTIVES: Transcutaneous electrical nerve stimulation (TENS) is an analgesic current that is used in many acute and chronic painful states. The aim of this study was to investigate central pain modulation by low-frequency TENS. METHODS: Twenty patients diagnosed with subacromial impingement syndrome of the shoulder were enrolled in the study. Patients were randomized into 2 groups: low-frequency TENS and sham TENS. Painful stimuli were delivered during which functional magnetic resonance imaging scans were performed, both before and after treatment. Ten central regions of interest that were reported to have a role in pain perception were chosen and analyzed bilaterally on functional magnetic resonance images. Perceived pain intensity during painful stimuli was evaluated using visual analog scale (VAS). RESULTS: In the low-frequency TENS group, there was a statistically significant decrease in the perceived pain intensity and pain-specific activation of the contralateral primary sensory cortex, bilateral caudal anterior cingulate cortex, and of the ipsilateral supplementary motor area. There was a statistically significant correlation between the change of VAS value and the change of activity in the contralateral thalamus, prefrontal cortex, and the ipsilateral posterior parietal cortex. In the sham TENS group, there was no significant change in VAS value and activity of regions of interest. DISCUSSION: We suggest that a 1-session low-frequency TENS may induce analgesic effect through modulation of discriminative, affective, and motor aspects of central pain perception.


Assuntos
Córtex Cerebral/irrigação sanguínea , Imageamento por Ressonância Magnética , Manejo da Dor/métodos , Percepção da Dor/efeitos da radiação , Dor/patologia , Estimulação Elétrica Nervosa Transcutânea/métodos , Adulto , Idoso , Biofísica , Mapeamento Encefálico , Córtex Cerebral/fisiopatologia , Método Duplo-Cego , Feminino , Lateralidade Funcional , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Pessoa de Meia-Idade , Oxigênio/sangue , Medição da Dor , Estudos Retrospectivos , Estatísticas não Paramétricas
17.
Rheumatol Int ; 32(4): 915-20, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21240501

RESUMO

The aim of this study was to investigate the role of psychological factors in the development of complex regional pain syndrome (CRPS) type I following the fracture of the distal radius. Fifty patients (average age 57.70 ± 13.43 years) with a distal radius fracture were enrolled in the present study. All of the patients were treated by closed reduction and cast immobilization. The Toronto Alexithymia Scale-20, Anxiety Sensitivity Index, State-Trait Anxiety Inventory, and Beck Depression Inventory were used to determine the patients' psychological features 2 days after the fracture. The patients were followed for 2 months after cast immobilization was completed using the International Association for the Study of Pain criteria to diagnose CRPS type I. CRPS type I developed in 13 (26%) patients of the 32 (34.4%) female patients and 18 (11.1%) male patients. The risk of CRPS type I was significantly increased in patients with high trait anxiety scores (P = 0.038). The results show that, after fracturing the distal radius, patients who have an anxious personality have a higher risk of developing CRPS type I. Following these patients closely for the development of CRPS type I may be advantageous for early preventative and therapeutic interventions.


Assuntos
Ansiedade/complicações , Personalidade , Fraturas do Rádio/complicações , Distrofia Simpática Reflexa/etiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Ansiedade/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inventário de Personalidade , Escalas de Graduação Psiquiátrica , Fraturas do Rádio/psicologia , Distrofia Simpática Reflexa/psicologia
18.
Mol Imaging Radionucl Ther ; 20(2): 52-8, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23486228

RESUMO

OBJECTIVE: The diagnosis of active inflammation in ankylosing spondylitis (AS) is crucial for treatment to delay possible persistent deformities. There are no specific laboratory tests and imaging methods to clarify the active disease. We evaluated the value of Tc-99m human immunoglobulin (HIG) scintigraphy in detection of active inflammation. MATERIAL AND METHODS: Twenty-nine patients were included. Tc-99m methylenediphosphonate bone (MDP) and HIG scintigraphies were performed within 2-5 day intervals. Two control groups were constituted both for MDP and HIG scintigraphies. Active inflammation was determined clinically and by serologic tests. Both scintigraphies were evaluated visually. Sacroiliac joint index values (SII) were calculated. RESULTS: Active inflammation was considered in five (sacroiliitis in 2, sacroiliitis-spinal inflammation in 1, achilles tendinitis in 1, arthritis of coxafemoral joints in 1) patients. HIG scintigraphy demonstrated active disease in all 3 patients with active sacroiliitis. But, it was negative in the rest. The other 2 active cases were HIG negative. Right and left SII obtained from HIG scintigraphy was higher (p<0.05) in clinically active patients than inactive patients. There was not any significant difference between patients with inactive sacroiliitis and normal controls. Right and left SII obtained from bone scintigraphy was higher (p<0.05) in patient group than in control group. CONCLUSION: Clinically inactive AS patients, behave no differently than normal controls with quantitative sacroiliac joint evaluation on HIG scintigraphy. HIG scintigraphy may be valuable for evaluation of sacroiliac joints in patients with unc RESULTS: ertain laboratory and clinical findings. CONFLICT OF INTEREST: None declared.

19.
Acta Orthop Traumatol Turc ; 44(3): 220-8, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21088463

RESUMO

OBJECTIVES: The aim of this study was to evaluate the clinical and functional outcomes and proprioceptive function in patients who received a modified accelerated rehabilitation program after anterior cruciate ligament (ACL) reconstruction with a patellar tendon (PT) graft. METHODS: The study included 38 patients (33 men, 5 women; mean age 27.6 ± 6.4 years; range 18 to 45 years) who underwent ACL reconstruction with a PT graft and participated in a modified accelerated rehabilitation program. Only six patients were athletes. Isokinetic strengths of concentric knee extension and flexion were measured with the Cybex isokinetic dynamometer, and static balance was tested with the Sport-KAT device. For proprioceptive assessment, active repositioning was measured at knee flexions of 40°, 20°, and 5° with an isokinetic dynamometer. Activity levels and subjective functional results were evaluated with the Tegner activity scale and Lysholm knee score, respectively. For objective functional testing, single leg hop, triple leg hop, and one-legged crossover hop tests were used. Knee stability was assessed with the Lachman test and anterior drawer test and knee range of motion was measured. The mean follow-up period was 16.2 ± 9.8 months. RESULTS: There was no graft failure during the follow-up. Twenty patients (52.6%) had hypoesthesia at the donor site and 15 patients (39.5%) had anterior knee pain. Before surgery, all the patients had positive results in the Lachman and anterior drawer tests. After surgery, the Lachman test was negative in 32 patients (84.2%), while six patients (15.8%) had grade 1 laxity. The mean Lysholm knee score showed a significant increase postoperatively (p<0.001). The mean preoperative and postoperative Tegner activity scores were not significantly different (p>0.05). There were no significant differences in the range of motion between operated and uninjured extremities (p>0.05). The two extremities were similar in proprioception and balance (p>0.05). Isokinetic quadriceps muscle strength was significantly decreased in the operated extremity only in extension at 60°/sec angular velocity (p<0.05). Other muscle strength measurements were similar in both extremities. The ratios of flexion/extension muscle strength were significantly greater in the involved extremity at all angular velocities (p<0.05). The mean performance scores of three functional tests were more than 85% of the uninvolved extremity. All the patients returned to preinjury daily activities or sports activities in 6 to 12 months postoperatively. CONCLUSION: We had satisfactory clinical, proprioceptive, and functional results in achieving dynamic and static stability of the knee with the modified accelerated rehabilitation program after ACL reconstruction with a PT graft.


Assuntos
Ligamento Cruzado Anterior/cirurgia , Articulação do Joelho/fisiologia , Ligamento Patelar/transplante , Procedimentos de Cirurgia Plástica/reabilitação , Propriocepção , Adolescente , Adulto , Ligamento Cruzado Anterior/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Força Muscular , Equilíbrio Postural , Transplante Autólogo/reabilitação , Resultado do Tratamento , Adulto Jovem
20.
Artigo em Inglês | MEDLINE | ID: mdl-20133184

RESUMO

The adsorption of isoniazid (INH) on sepiolite, loughlinite (natural Na-sepiolite) and palygorskite from Anatolia was investigated by FT-IR spectroscopy. Experimental results indicated that INH molecules, adsorbed on sepiolite-palygorskite group of clays, are coordinated to surface hydroxyls by H-bonding interaction through the pyridine ring nitrogen lone pairs. Moreover, some of the adsorbed INH molecules may enter the interior channels of the sepiolite-palygorskite structure and involve H-bonding interaction with zeolitic water. Some intensity and frequency changes in the OH stretching band of surface hydroxyls (Si-OH) of the INH-treated sepiolite and loughlinite were observed. However, this band is found to be less affected by the adsorption of isoniazid in the case of palygorskite, probably because the surface Si-OH groups in palygorskite appear to be less abundant than in sepiolite or loughlinite.


Assuntos
Silicatos de Alumínio/química , Isoniazida/química , Compostos de Magnésio/química , Silicatos de Magnésio/química , Compostos de Silício/química , Adsorção , Argila , Modelos Moleculares , Espectroscopia de Infravermelho com Transformada de Fourier
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