The article presents the results of extraction of butanol extract from the aboveground part of the family Asteraceae of genus Symphyotrichum novi-belgii, growing in the East Kazakhstan region in September 2021, using silica gel as an effective sorbent in column chromatography and separation of quercetin from the flavonoid fraction. The purpose of the work is to study the chemical composition of the plant of the genus Symphyotricum novi-belgii, to develop a method for obtaining biologically active substances and to establish the structure of individual substances by using modern physical and chemical methods. The study revealed the quantitative content of biologically active substances in the composition of a plant of the genus Symphyotrichum novi-belgii, as a result of which flavonoids amounted to 1.45±0.03 %, tannins 1.30±0.03%, organic acids 1.43±0.02%, saponins 1.05±0.04%. Extraction of the flavonoid complex from the plant Symphyotrichum novi-belgii It was carried out with effective extraction modes (maceration with 80% ethanol, 72 hours, hydromodule 1:8). 47 mg fractions 17-19 were selected from of the flavonoid complex by column chromatography on silica gel and qualitative analysis was performed using cerium (IV) sulfate Ce(SO4)2 as an eluent in thin-layer chromatography. As a result, the structure of the isolated individual compound was confirmed by modern methods of 1H-NMR, 13C-NMR and mass spectrometry (EI-MS). As a result, the individual substance was found to be quercetin (2.1 mg).

Изучено влияние технологической подготовки металлической поверхности на формирование, морфологию и защитную способность цинк-фосфатных покрытий, наносимых на низкоуглеродистую сталь. Образцы стали Ст20 шлифовали вручную наждачной бумагой зернистостью 600, 800 и 1000 грит, а также обрабатывали на ленточно-шлифовальном станке абразивной лентой 80 грит, что моделировало грубую зачистку промышленного типа. Фосфатирование проводили в термостатированном цинк-фосфатном растворе (70 °C, pH 3,0) при непрерывном перемешивании, что исключало локальные градиенты и обеспечивало воспроизводимые условия осаждения. Изучали динамику прироста массы фосфатного покрытия, его поверхностную морфологию по данным СЭМ и антикоррозионную стойкость по ускоренному методу Акимова. С уменьшением размера абразивных частиц (600 → 1000 грит) шероховатость снизилась, а конечный удельный привес покрытия возрастал, подтверждая более плотный и равномерный охват подложки. Тем не менее защитное время по Акимову сокращалось, вероятно из-за образования внутрислойной микрокапиллярной сети, ускоряющей проникновение электролита к металлической поверхности. Напротив, грубая станочная шлифовка (80 грит) формировала смешанную пластинчато-игольчатую морфологию с более открытой пористостью; такое покрытие характеризовалось одновременно наибольшим привесом и максимальным временем до отказа (59 с). Полученные данные демонстрируют, что хотя колебания интегральной толщины невелики, шлифовкой можно целенаправленно влиять на топологию пор и эффективность фосфатного слоя перед нанесением краски или масла. Представленные результаты дополняют литературные данные и указывают на возможность корректирования режимов абразивной обработки перед фосфатированием металлических деталей.

Background and Clinical Significance: Bladder neoplasms often present with coexisting thrombi and hematuria, appearing as complex intraluminal masses on imaging, and posing a key diagnostic challenge in distinguishing neoplastic tissue from thrombus, to prevent harmful overstaging. Case Presentation: An 82-year-old man with recurrent gross hematuria and urinary disturbances was evaluated by ultrasound, which identified a large endoluminal lesion in the anterior bladder wall. The patient subsequently underwent contrast-enhanced CT using a second-generation dual-layer spectral CT system, which utilizes a dual-layer detector to simultaneously acquire high- and low-energy X-ray data. Conventional CT images confirmed a multifocal, bulky hyperdense lesion along the bladder wall, protruding into the lumen and raising suspicion for a heterogeneous mass, though further characterization was not possible. Spectral imaging enabled the reconstruction of additional maps—such as iodine density, effective atomic number (Z-effective), and electron density—which were used to further characterize these findings. The combination of these techniques clearly demonstrated differences in iodine uptake and tissue composition within the parietal lesions, allowing for a reliable differentiation between neoplastic tissue and intraluminal thrombus. Conclusions: The integration of conventional CT imaging with spectral-derived maps generated in post-processing allowed for accurate and reliable tissue differentiation between bladder neoplasm and thrombus. Spectral imaging holds the potential to prevent tumor overstaging, thereby supporting more appropriate clinical management. The dual-layer technology enables the generation of these maps from every acquisition without altering the scan protocol, thereby having minimal impact on the daily clinical workflow.

Background and Clinical Significance: Atrial septal defects (ASDs), particularly the ostium secundum type, are congenital cardiac anomalies that can lead to serious complications if left untreated. Percutaneous closure using devices like the Amplatzer Septal Occluder (ASO) has become a widely accepted approach, although complications such as device embolization can occur. Case Presentation: We present a unique case of a 28-year-old woman who developed acute hemodynamic instability and arrhythmias following embolization of an Amplatzer device into the right ventricle during an ASD closure. Despite initial treatment with antiarrhythmic medication, the patient required urgent open-heart surgery for device retrieval and ASD closure. The surgery successfully involved pericardial patch closure of the ASD, device removal from the right ventricle, and the performance of the Kay procedure to address significant tricuspid regurgitation. Postoperative recovery was uneventful, with the patient stabilized and discharged in stable condition. Conclusions: This case highlights the critical need for rapid surgical intervention in cases of device embolization, and the importance of multidisciplinary coordination in managing such complex complications. The combination of ASD closure, device retrieval, and tricuspid valve repair led to a successful outcome, underscoring the importance of timely, decisive action in complex cardiovascular emergencies.

Background and Clinical Significance: Retained intrarenal foreign bodies are rare adverse events after endourological stone surgery. Guidewire fracture or detachment is uncommon and can trigger infection, obstruction, or encrustation if unrecognized. We report antegrade percutaneous snare retrieval of a retained hydrophilic guidewire tip and provide a concise literature review (seven PubMed-indexed intrarenal cases identified by a structured search) to inform diagnosis, management, and prevention. We also clarify the clinical rationale for an antegrade versus retrograde approach and the sequencing of decompression, definitive stone management, and stenting in the context of sepsis. Case Presentation: A 75-year-old woman with diabetes presented with obstructive left pyelonephritis from ureteral and renal calculi. After urgent percutaneous nephrostomy, she underwent semirigid and flexible ureteroscopic lithotripsy with double-J stenting; the nephrostomy remained. During routine tube removal, the stent was inadvertently extracted. Seven days later she re-presented with fever and flank pain. KUB and non-contrast CT showed a linear 4 cm radiopaque foreign body in the left renal pelvis with dilatation. Under local anesthesia and fluoroscopy, a percutaneous tract was used to deploy a 35 mm gooseneck snare and retrieve the distal tip of a hydrophilic guidewire (Sensor/ZIP-type). Inflammatory markers were normalized; the nephrostomy was removed on day 5; six-week imaging confirmed complete clearance without complications. Conclusions: Retained guidewire fragments should be suspected in postoperative patients with unexplained urinary symptoms or infection. Cross-sectional imaging confirms the diagnosis, while minimally invasive extraction—preferably an antegrade percutaneous approach for rigid or coiled fragments—achieves prompt resolution. This case adds to the seven prior PubMed-indexed intrarenal reports identified in our review, bringing the total to eight, underscoring prevention through pre-/post-use instrument checks, immediate fluoroscopy when withdrawal resistance occurs, and structured device accounting to avoid “never events.”

Involuntary urinary leakage due to stress urinary incontinence in women represents a widespread health condition that reduces quality of life. Background: Treatment with tension-free vaginal tape (TVT) remains the most used procedure, although its impact on quality of life, specifically regarding sexual function effects, has not been thoroughly investigated. The aim of our study is to achieve a broader understanding of the full range of outcomes after surgery, emotional well-being, and sexual function. Materials and Methods: The present prospective cohort study was conducted between 15 July 2023 and 15 June 2024 in the Emergency County Clinical Hospital Targu Mures, Department of Obstetrics and Gynecology. This is an investigation of TVT surgery and its impact on urinary incontinence, conducted by evaluating bladder dysfunction and sexual function before and after surgical intervention, as well as considering physical and psychological outcomes using specific questionnaires. Results: There was a 91.7% objective cure rate for incontinence, while urinary symptoms, sexual function, and emotional health significantly improved, urine leakage associated with strong urgency (p = 0.0002), urine leakage associated with coughing, sneezing, or laughing (p ≤ 0.0001), and patient sexual activity and emotional health also improved after surgery (p ≤ 0.0001). Furthermore, colorectal symptoms improved. Conclusions: This study emphasizes that for the best recovery of sexual and emotional health post-surgery, complete symptom removal is a requirement. Additionally, the significance of combined questionnaires in assessing treatment efficacy is highlighted. A larger sample size of patients and a longer follow-up are required before recommending this procedure as a standard treatment.

Background and Clinical Significance: Cardiac myxomas, though typically benign and asymptomatic, can rarely present with acute cardiovascular compromise. We report a case of a left atrial myxoma presenting as acute pulmonary edema in a patient with prior normal cardiac imaging. Case Presentation: A 55-year-old male, with a history of thrombolyzed myocardial infarction and normal coronary angiography and echocardiography five years earlier, was admitted with acute dyspnea and pulmonary edema. Bedside transthoracic echocardiography (TTE) revealed a left atrial mass causing severe mitral inflow obstruction. Emergency surgical excision was performed, and the mass was submitted for histopathological analysis. Discussion: Histology confirmed cardiac myxoma. The procedure and recovery were uneventful, and follow-up at one month confirmed no recurrence. Conclusions: This case illustrates the potential for cardiac myxoma to manifest suddenly with life-threatening symptoms, even after previously normal investigations. Echocardiography remains pivotal in diagnosing intracardiac masses and guiding timely intervention.

Background and Clinical Significance: Posteriorly migrated lumbar disc herniation [PMLDH] is a rare entity that may present with atypical clinical and radiological features, often mimicking other spinal pathologies. Migration of sequestered fragments through the interlaminar space is exceptionally uncommon, and diagnostic challenges are further amplified in the presence of spinal instability. While MRI and CT are generally sufficient for diagnosis, undetected lesions on preoperative imaging may complicate clinical management. Case Presentation: A 59-year-old male presented with acute low back pain and left-sided radiculopathy. Examination revealed mild motor weakness in ankle dorsiflexion. MRI showed L4–L5 segmental instability with central canal stenosis but no migrated disc fragment. Owing to neurological deficit, decompressive laminectomy with posterior instrumentation was performed. Intraoperatively, a posteriorly migrated sequestered fragment compressing the thecal sac was excised and confirmed as degenerative disc material. Postoperatively, the patient’s neurological deficit and radicular pain resolved, with no new complaints at 3-month follow-up. Conclusions: This case highlights an unusual presentation of PMLDH in a patient with lumbar stenosis and spinal instability, undetected on preoperative imaging. Recognition of the biomechanical predisposition at the L3–4 and L4–5 levels is important in understanding such rare migrations. Although literature emphasizes early surgical intervention for PMLDH, our patient required urgent surgery due to neurological deficits rather than a definitive preoperative diagnosis. Further studies are warranted to clarify the relationship between instability and posterior migration.

Background and Clinical Significance: Triosephosphate isomerase (TPI) deficiency is a rare autosomal recessive metabolic disorder caused by a pathogenic variant in the TPI1 gene. It is characterised by chronic haemolytic anaemia, progressive neuromuscular dysfunction, and reduced life expectancy. Patients typically present with symptoms in the first few months of life, including muscle weakness, ataxia, and recurrent respiratory infections. Diagnosis is confirmed by genetic testing, and management is generally symptomatic as no treatment is available. Case Presentation: We describe the case of an infant diagnosed with TPI deficiency in the context of haemolytic anaemia with progressive neurological deterioration and respiratory failure. Conclusions: This case illustrates the complexity of the disease and highlights the importance of early diagnosis and contributes to the limited literature by providing a detailed clinical description and highlighting the diagnostic challenges associated with this condition. Beyond its clinical relevance, this report emphasises the potential role of personalised medicine in the management of TPI deficiency. Early identification of specific genotypes may inform prognosis and guide individualised supportive strategies. As knowledge of the molecular underpinnings of TPI deficiency expands, opportunities may emerge for targeted therapeutic approaches tailored to patient-specific characteristics.

Background and Clinical Significance: Patients with a neurodegenerative condition known as posterior cortical atrophy (PCA) can present with attention impairments across a variety of cognitive contexts, but the consequences of these are little explored in example of single word reading. Case Presentation: We present a detailed single-case study of KL, a local resident of South Wales, a patient diagnosed with posterior cortical atrophy (PCA) in 2018, whose reading and letter-naming abilities are selectively disrupted under non-canonical visual presentations. In particular, KL shows significantly impaired accuracy performance when reading words presented in tilted (rotated 90°) format. By contrast, his reading under conventional horizontal (canonical) presentation is nearly flawless. Whilst other presentation formats including, mixed-case text (e.g., TaBLe) and vertical (marquee) format led to only mild performance decrements—even though mixed-case formats are generally thought to increase attentional ‘crowding’ effects. Discussion: These findings indicate that impairments of word reading can emerge in PCA when visual-attentional demands are sufficiently high, and access to ‘top down’ orthographic information is severely attenuated. Next, we explored a cardinal feature of attentional dyslexia, namely the word–letter reading dissociation in which word reading is superior to letter-in-string naming. In KL, a similar dissociative pattern could be provoked by non-canonical formats. That is, conditions that similarly disrupted his word reading led to a pronounced disparity between word and letter-in-string naming performance. Moreover, different orientation formats revealed the availability (or otherwise) of distinct compensatory strategies. KL successfully relied on an oral (letter by letter) spelling strategy when reading vertically presented words or naming letters-in-strings, whereas he had no ability to engage compensatory mental rotation processes for tilted text. Thus, the observed impact of non-canonical presentations was moderated by the success or failure of alternative compensatory strategies. Conclusions: Importantly, our results suggest that an attentional ‘dyslexia-like’ profile can be unmasked in PCA under sufficiently taxing visual-attentional conditions. This approach may prove useful in clinical assessment, highlighting subtle reading impairments that conventional testing might overlook.