scholarly journals Swept-Source Optical Coherence Tomography Angiography According to the Type of Choroidal Neovascularization

2019 ◽  
Vol 8 (9) ◽  
pp. 1272 ◽  
Author(s):  
Joon Hyung Yeo ◽  
Hum Chung ◽  
Jee Taek Kim

We analyzed and compared the sensitivity of choroidal neovascularization (CNV) detection according to CNV type in patients with active neovascular age-related macular degeneration (AMD) using swept-source optical coherence tomography (OCT) angiography (OCTA). A retrospective chart review was performed in patients with neovascular AMD. OCTA images were classified into three groups: Group A (well-circumscribed vascular complex); Group B (moderately circumscribed vascular complex); and Group C (poorly circumscribed vascular complex), according to CNV appearance. Demographic characteristics, OCT parameters, neovascularization subtypes, and OCTA image quality were analyzed to determine the effect on visualization of the neovascular complex. A total of 130 patients with CNV secondary to active neovascular AMD were analyzed. Among them, 52 eyes from 47 patients were included in the study. Eighteen eyes (34.6%) were classified into Group A, 24 (46.2%) into Group B, and 10 (19.2%) into Group C. Statistical analysis showed no significant differences in demographic characteristics or OCT parameters between the three groups. Overall sensitivity of active CNV detection was 80.7% (42/52 eyes). In 73.5% (25/34) of eyes with type 1 CNV (sub-retinal pigment epithelial type), 100.0% (9/9) of eyes with type 2 CNV (sub-retinal type), and 88.9% (8/9) of eyes with type 3 CNV (retinal angiomatous proliferation type), the vascular complex was well visualized on OCTA. OCTA provides adequate noninvasive imaging of CNV in patients with neovascular AMD, which may assist in CNV diagnosis and activity monitoring. In particular, type 2 CNV was well detected in OCTA in comparison with type 1 and type 3 CNV.

2010 ◽  
Vol 113 (3) ◽  
pp. 511-515 ◽  
Author(s):  
Andrew C. Zacest ◽  
Stephen T. Magill ◽  
Jonathan Miller ◽  
Kim J. Burchiel

Object Trigeminal neuralgia (TN) is a neuropathic pain syndrome that is often associated with neurovascular compression of the trigeminal nerve and may be effectively treated with microvascular decompression (MVD). The authors used high-resolution MR imaging with 3D reconstruction in patients with constant facial pain (Type 2 TN) to determine the presence/absence of neurovascular compression and thus a potential MVD benefit. They retrospectively contacted patients to evaluate outcome. Methods All patients who reported spontaneous onset of constant facial pain (Type 2 TN), which occurred at least 50% of the time, who had undergone high-resolution 3-T MR imaging with 3D reconstruction were retrospectively selected for this study. Clinical history, facial pain questionnaire data, physical examination findings, and results from 3-T 3D MR imaging reconstruction were recorded for all patients. Intraoperative findings and clinical pain outcome were recorded for all patients who underwent MVD. Results Data obtained in 27 patients were assessed. On the basis of history and 3D MR imaging reconstruction findings, 13 patients were selected for MVD (Group A) and 14 underwent conservative treatment (Group B). Typical or suspected artery- or vein-induced neurovascular compression was predicted preoperatively in 100% of Group A patients and in 0% of Group B patients. At the time of MVD, definitive neurovascular compression was confirmed in 11 (84.6%) of 13 Group A patients. Following MVD, facial pain was completely relieved in 3 (23%), improved in 7 (53.8%), and no better in 3 (23%) of 13 Group A patients. A history of episodic (Type 1 TN) pain at any time was reported in 100 and 50% of Group A and Group B patients, respectively. A Type 1 TN pain component was reportedly improved/relieved in all Group A patients, but the Type 2 TN pain component was improved in only 7 (53.8%) of 13 patients. The mean postoperative follow-up duration was 13 months. Conclusions High-resolution 3D MR imaging reconstruction in patients with constant facial pain (Type 2 TN) can help determine the presence/absence of neurovascular compression. Surgical selection based on both clinical and radiological criteria has the potential to improve surgical outcome in patients with Type 2 TN who may potentially benefit from MVD. However, even in such selected patients, pain relief is likely to be incomplete.


2000 ◽  
Vol 85 (9) ◽  
pp. 3348-3351
Author(s):  
Hiroshi Obayashi ◽  
Goji Hasegawa ◽  
Michiaki Fukui ◽  
Kenji Kamiuchi ◽  
Akane Kitamura ◽  
...  

Abstract Recently, several studies have demonstrated that tumor necrosis factor microsatellite polymorphism (TNFa) contributes to the susceptibility of type 1 diabetes. This study investigates the influence of TNFa on the predisposition to insulin dependency in adult-onset diabetic patients with type 1 diabetes-protective human leukocyte antigen haplotypes. The TNFa of three groups of DRB1∗1502-DQB1∗0601-positive diabetic patients who had initially been nonketotic and noninsulin dependent for more than 1 yr was analyzed. Group A included 11 antibodies to glutamic acid decarboxylase (GADab)-positive patients who developed insulin dependency within 4 yr of diabetes onset. Group B included 11 GADab-positive patients who remained noninsulin dependent for more than 12 yr. Group C included 12 GADab-negative type 2 diabetes, and a control group included 18 nondiabetic subjects. In the group C and control subjects, DRB1∗1502-DQB1∗0601 was strongly associated with the TNFa13 allele. DRB1∗1502-DQB1∗0601 was strongly associated with the TNFa12 allele among the group A patients, but not among the group B patients. Interestingly, sera from all patients with non-TNFa12 and non-TNFa13 in group B reacted with GAD65 protein by Western blot. These results suggest that TNFa is associated with a predisposition to progression to insulin dependency in GADab/DRB1∗1502-DQB1∗0601-positive diabetic patients initially diagnosed with type 2 diabetes and that determination of these patients’ TNFa genotype may allow for better prediction of their clinical course.


1988 ◽  
Vol 252 (1) ◽  
pp. 283-287 ◽  
Author(s):  
W M Abbott ◽  
E F Hounsell ◽  
T Feizi

Oligosaccharide recognition by the 13 kDa soluble lectin from bovine heart muscle has been investigated by inhibition of binding of the 125I-labelled lectin to trypsin-treated rabbit erythrocytes. The results indicate that the Type 1 (Gal beta 1-3GlcNAc) and the Type 2 (Gal beta 1-4GlcNAc) backbone structures are the basic recognition units, and that the blood-group-H structure, the blood-group-B structure, the ‘B-like’ structure [afucosyl-(blood group B)] and the alpha 2-3 sialylated analogues of the backbone structures can also be accommodated and hence are candidate receptor structures for the lectin. A comparison of available inhibition data on six other soluble beta-galactoside-binding lectins (three from human lung and three from rat lung) has shown some common features among these and the bovine lectin, e.g. in general a stronger reaction with N-acetyl-lactosamine than with lactose, and a lack of reaction with 3-fucosyl-lactose and 6-sialyl-lactose. However, there are distinctive features among the lectins, e.g. differences in relative reactions with the blood-group-A structure, and no two of the lectins appear to be identical in their fine specificities.


Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 3384-3384
Author(s):  
Oliver Hegener ◽  
Natasha M Wiles ◽  
Anne Wareing ◽  
Bella Madan ◽  
Steve K Austin

Abstract Abstract 3384 Introducing new factor concentrates in VWD patients is complicated by VWD subtype and PK variability. Wilate, a VWF concentrate with a 1:1 VWF: FVIII ratio and has not yet been widely used in the UK. We conducted PK studies with Wilate, to determine its efficacy, peak VWF activity and FVIII levels, and clearance in patients with VWD. Where feasible, we compared the data with previously used concentrate (Haemate-P) handling. 17 VWD patients (4 type 1, 6 type 2, 7 type 3) from two London Haemophilia centres were evaluated. The median age was 36 yrs (range 12– 67 yrs); sex M:F 6:11; mean body weight 73 kg (range 39–122 kg). Seven were blood group O, 1 group AB, 4 group A and 4 group B. The mean dose of Wilate administered was 44 iu/kg VWF: RiCoF (range 17–61). VWF activity, VWF antigen and FVIII levels were measured pre- and post for up to 8 hrs. The mean dose of Wilate required to reach target VWF:RiCof activity level of >65 iu/dl in the type 3 VWD was 49.6 iu/kg, and 38.7 iu/kg in type 2 VWD. Of the type 1 patients mean dosing was 43.0 iu/kg. The median peak VWF:RiCoF activity was 82 iu/dl in type 3 and 115 iu/dl in type 2, and 92 iu/dl in type 1. VWF Antigen levels were 116 iu/dl in type 3, and 164 iu/dl in type 2 and 135 iu/dl in type 1. VWF handling in some individuals was suggestive of increased VWF clearance with a half-life below the suggested half-life of 12 hours. This observation indicates the importance of prolonged PK studies in individual cases. As expected, peak FVIII levels were generally higher with Wilate compared to previously used concentrate (94 iu/dl in type 3 and 82 iu/dl in type 2) but the PK profiles between the products were similar, with some inter-individual variability. In conclusion, Wilate achieves adequate VWF activity and FVIII levels and has similar PK properties to previously used concentrate. However, based on the results of this study prolonged PK assessment appears important in selected cases. Disclosures: Hegener: Octapharma AG: Employment. Austin:Baxter: Advisory Board Other; Pfizer: Advisory Board, Advisory Board Other.


2012 ◽  
Vol 2012 ◽  
pp. 1-3 ◽  
Author(s):  
Tony Hung ◽  
Soroush Zaghi ◽  
Jonathan Yousefzadeh ◽  
Matthew Leibowitz

Necrotizing fasciitis is a life-threatening soft tissue infection that results in rapid local tissue destruction. Type 1 necrotizing fasciitis is characterized by polymicrobial, synergistic infections that are caused by non-Group Astreptococci, aerobic and anaerobic organisms. Type 2 necrotizing fasciitis involves Group AStreptococcus(GAS) with or without a coexisting staphylococcal infection. Here we provide the first report of necrotizing fasciitis jointly associated with the microbes Group BStreptococcusandStaphylococcus lugdunensis.S. lugdunensisis a commensal human skin bacterium known to cause often painful and prolonged skin and soft tissue infections. To our knowledge, however, this is the first case ofStaph. lugdunensis-associated necrotizing fasciitis to be reported in the literature.


2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Alexandra Miere ◽  
Hassiba Oubraham ◽  
Francesca Amoroso ◽  
Pauline Butori ◽  
Polina Astroz ◽  
...  

Purpose. To compare the qualitative and quantitative choroidal neovascularization (CNV) changes after antivascular endothelial growth factor (anti-VEGF) therapy in treatment-naïve and treated eyes with age-related macular degeneration (AMD) using optical coherence tomography angiography (OCTA). Methods. Consecutive patients with neovascular AMD underwent multimodal imaging, including OCTA (AngioPlex, CIRRUS HD-OCT model 5000; Carl Zeiss Meditec, Inc., Dublin, OH) at baseline and at three monthly follow-up visits. Treatment-naive AMD patients undergoing anti-VEGF loading phase were included in group A, while treated patients were included in group B. Qualitative and quantitative OCTA analyses were performed on outer retina to choriocapillaris (ORCC) slab. CNV size was measured using a free image analysis software (ImageJ, open-source imaging processing software, 2.0.0). Results. Twenty-five eyes of 25 patients were enrolled in our study (mean age 78.32 ± 6.8 years): 13 treatment-naïve eyes in group A and 12 treated eyes in group B. While qualitative analysis revealed no significant differences from baseline to follow-up in the two groups, quantitative analysis showed in group A a significant decrease in lesion area (P=0.023); in group B, no significant change in the lesion area was observed during anti-VEGF therapy (P=0.93). Conclusion. Treatment-naïve and treated eyes with CNV secondary to neovascular AMD respond differently to anti-VEGF therapy. This should be taken into account when using OCTA for CNV follow-up or planning therapeutic strategies.


2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Zeki Aydin ◽  
Kultigin Turkmen ◽  
Fatih Dede ◽  
Emre Yasar ◽  
Savas Ozturk ◽  
...  

Abstract Background and Aims Rapidly progressive glomerulonephritis (RPGN) is a clinical condition that develops due to different etiologic causes, characterized by a rapid and progressive decrease in renal function and progresses to end-stage renal failure in weeks to months if not treated. In our study, diagnostic and demographic characteristics of patients diagnosed with RPGN by biopsy, clinical and laboratory findings in our country were investigated. Method Data were obtained from national multicenter (47 centers) data entered into the Turkish Society of Nephrology Glomerular Diseases (TSN-GOLD) Working Group database between May 2009 and June 2019. Demographic characteristics such as age, sex, indications for biopsy, diagnosis of the glomerular diseases, comorbidities, laboratory and biopsy findings of all patients were recorded. The data presented is cross-sectional and includes application data for the biopsy period. According to their types, RPGN patients were classified as type 1 (anti-GBM related), type 2 (immunocomplex related) and type 3 (immune-negative; “pauci-immune”). Results After exclusion of 46 patients with missing data, 200 patients (mean age 47.9 ± 16.7 years, 44% female) were included in the study which constitutes 5.2% of the total glomerulonephritis database (total number of patients: 3875). Hypertension was present in 62 patients (31.0%) and diabetes was present in 18 patients (9.0%). Renal biopsy was performed in 147 (73.5%) patients due to nephritic syndrome (RPGN included). 80.2% of the patients' biopsies were performed in nephrology clinics and 19.8% of them were performed in radiology clinics. ANCA positivity was found in 121 (60.5%) patients (proteinase 3-ANCA was positive in 55 and myeloperoxidase-ANCA positive in 66 patients). Type 1 RPGN was detected in 11 (5.5%), type 2 RPGN in 42 (21%) and type 3 RPGN in 147 (73.5%) patients. In 21 patients (10.5%), biopsy revealed RPGN with advanced chronic changes (fibrous global sclerotic glomeruli, advanced interstitial fibrosis and tubular atrophy). Mean serum creatinine was 4.2 ± 3.4 mg/dl, median glomerular filtration rate was 18 (10-37) ml/min and proteinuria 2100 (1229-3526) mg/day according to CKD-EPI formula. The mean number of glomeruli in the biopsies was 18.8 ± 10.6 and the number of crescentic glomeruli was 9.9 ± 7.7 (ratio: 52.7%) (Figure). The patients were divided into 3 groups according to their crescentic glomeruli ratios. The proportion of crescentic glomeruli is 10-50% in group 1, 50-80% in group 2, and >80% in group 3. The demographic, laboratory and histopathological characteristics of the groups are given in Figure. It was observed that urea and creatinine increased and calcium and hemoglobin decreased with increasing crescentic glomerular ratio. Conclusion Our study provides valuable demographic, clinical, laboratory and histopathological data about RPGN in our country. Our data are generally compatible with the literature. In our study, advanced chronic histopathological findings were prominent in the biopsy of 21 patients. Early biopsy should be performed to confirm the diagnosis of RPGN and to avoid unnecessary intensive immunosuppressive therapy. In addition to the treatments applied, detailed data, including patient and renal survival are needed.


2018 ◽  
Vol 4 (4) ◽  
pp. 519-522
Author(s):  
Jeyakumar S ◽  
Jagatheesan Alagesan ◽  
T.S. Muthukumar

Background: Frozen shoulder is disorder of the connective tissue that limits the normal Range of motion of the shoulder in diabetes, frozen shoulder is thought to be caused by changes to the collagen in the shoulder joint as a result of long term Hypoglycemia. Mobilization is a therapeutic movement of the joint. The goal is to restore normal joint motion and rhythm. The use of mobilization with movement for peripheral joints was developed by mulligan. This technique combines a sustained application of manual technique “gliding” force to the joint with concurrent physiologic motion of joint, either actively or passively. This study aims to find out the effects of mobilization with movement and end range mobilization in frozen shoulder in Type I diabetics. Materials and Methods: 30 subjects both male and female, suffering with shoulder pain and clinically diagnosed with frozen shoulder was recruited for the study and divided into two groups with 15 patients each based on convenient sampling method. Group A patients received mobilization with movement and Group B patients received end range mobilization for three weeks. The outcome measurements were SPADI, Functional hand to back scale, abduction range of motion using goniometer and VAS. Results: The mean values of all parameters showed significant differences in group A as compared to group B in terms of decreased pain, increased abduction range and other outcome measures. Conclusion: Based on the results it has been concluded that treating the type 1 diabetic patient with frozen shoulder, mobilization with movement exercise shows better results than end range mobilization in reducing pain and increase functional activities and mobility in frozen shoulder.


Author(s):  
A.M. Satarkulova

The assessment and dynamic control over students’ status is a very important task. It allows timely detection of prenosological status prior to pathology and health maintenance in students. The objective of the paper is to assess the adaptive abilities of the body, to analyze changes in heart rate variability indicators in students with various types of autonomic regulation, to identify prenosological status and precursory pathological symptoms. Materials and Methods. The study enrolled 302 students from India, aged 21.54±1.43. Programming complex «Psychophysiologist» was used to register the main HRV parameters within 5 minutes. Health status was evaluated according to the index of functional changes and the scale of functional states. Results. N.I. Shlyk (2009) distinguished two groups of students with different types of autonomic regulation: type 1 (53 %) with moderate and type 2 (5 %) with marked characteristics of central regulation profile, type 3 (35 %) with moderate and type 4 (7 %) with marked characteristics of autonomous regulation profile. Main parameters of HRV and adaptation potential were defined for each student.All the parameters characterized functional and health status. Conclusions. It was shown that 82 % of trial subjects (type 1), 53 % (type 2), 94 % (type 3) and 95 % (type 4) demonstrated satisfactory adaptation and their physiological processes were at an optimal level. 18 % of students (type 1) demonstrated reduced adaptive abilities of the body. Moreover, they were under moderate stress. 47 % of subjects (type 2) were also under a significant stress, which was proven by excessively high SI, low SDNN and TP, and an increased index of functional changes. 5 % of students (type 4) revealed dysfunctional characteristics in the heart rhythm, peculiar to pathology. Keywords: foreign students, heart rate variability, types of autonomic regulation, adaptation potential, functional status. Оценка состояния студентов и динамический контроль за ним является важной задачей, поскольку позволяет своевременно выявлять у студентов донозологические состояния, предшествующие патологии, и способствовать сохранению здоровья. Цель. Оценка адаптивных возможностей организма, анализ изменений показателей вариабельности сердечного ритма у студентов с различными типами вегетативной регуляции, выявление донозологических состояний и ранних признаков патологии. Материалы и методы. В исследовании участвовало 302 студента в возрасте 21,54+1,43 года из Индии. Регистрировались основные параметры ВСР в течение 5 мин с использованием программно-аппаратного комплекса «Психофизиолог». Состояние и уровень здоровья оценивались по индексу функциональных изменений и шкале функциональных состояний. Результаты. По способу, предложенному Н.И. Шлык, выделены группы студентов с различными типами вегетативной регуляции: I (53 %) и II типы (5 %) – с умеренным и выраженным преобладанием центрального контура регуляции соответственно, III (35 %) и IV типы (7 %) – с умеренным и выраженным преобладанием автономного контура регуляции соответственно. У каждого из студентов определены основные параметры ВСР и адаптационного потенциала, характеризующие функциональное состояние и уровень здоровья. Выводы. Показано, что для 82 % обследуемых с I типом, 53 % со II типом, 94 % c III типом и 95 % с IV типом регуляции характерно состояние удовлетворительной адаптации, физиологические процессы сохраняются на оптимальном уровне. В группе студентов I типа у 18 % студентов адаптивные возможности организма снижены, выявлено состояние умеренного напряжения. У 47 % обследуемых II типа также зафиксировано состояние резко выраженного напряжения, индикатором которого является чрезмерно высокое значение SI, низкие величины SDNN и ТP, повышенное значение индекса функциональных изменений. В группе студентов с IV типом у 5 % учащихсяв регуляции ритма сердца выявлены дисфункциональные признаки, характерные для патологии. Ключевые слова: иностранные студенты, вариабельность сердечного ритма, типы вегетативной регуляции, адаптационный потенциал, функциональное состояние.


2020 ◽  
Vol 17 ◽  
Author(s):  
Anand Shankar

Aim & Objective: The objective of this retrospective study was to investigate the efficacy of adding remogliflozin to current insulin glargine plus two oral drug i.e. metformin and teneligliptin therapy in poorly controlled Indian type 2 diabetes. Material and Methods: 173 study participants were initially selected from patient database who continued on their insulin glargine or received an increased dose of insulin glargine along with other OHA based therapy (Group A) and 187 were selected who had received remogliflozin (100 mg BD) (Group B) in addition to insulin glargine along with other OHA based therapy. Glycated haemoglobin (HbA1c), total daily insulin dose, body weight, and the number of hypoglycemic events were recorded at weeks 0, 12 and 24. Result: During the study, mean values of HbA1c, FBG and P2BG were significantly reduced in both groups. Insulin requirements decreased from 45.8 ± 16.7 IU/day to 38.5 ± 13.5 IU/day (P < 0.001) and at week 24 even further decreased to 29.5 ± 14.5 IU/Day . Twenty three patients in group B were able to cease insulin treatment altogether after 24 week treatment. It has been observed to attain tight blood glucose control we need to increase insulin dose in group A from 45.5 ± 16.5 IU/Day to 51.5 ± 14.5 at week 12 (P<0.01) and which further increased to 53.8 ± 12.8 IU/Day at week 24 (P<0.01). Adding remogliflozin showed significant effect on blood pressure (P < 0.001) and weight reduction (P < 0.001). It has been observed that 38% patients has achieves targeted HbA1c (≤7%) in group B where it was 22% in group A. Conclusion: Results demonstrate that in uncontrolled T2DM patients remogliflozin 100 mg BD can successfully lay a foundation for prolonged good glycemic control. Early addition of remogliflozin with insulin glargine plus OHAs may be an alternative compare to intensive up titration of insulin daily dose in people with uncontrolled T2DM. Clinical Trial Registration Number: A 2358


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