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1.
Cureus ; 16(7): e63645, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39092321

RESUMEN

Brown tumor due to secondary hyperparathyroidism in chronic kidney disease is a well-established entity. Brown tumor of the spine with hemorrhage causing acute neurological deficit is a rare entity. A 35-year-old gentleman, with chronic kidney disease (CKD) on dialysis, presented with acute paraplegia and loss of lower limb sensation and bowel and bladder control. Imaging revealed a T8 vertebral body expansile lytic lesion with collapse, exaggerated kyphosis, and cord compression. He underwent an emergency decompressive laminectomy and transpedicular corpectomy of T8, with posterior stabilization. Histopathology revealed lobular clusters of osteoclast-like multinucleated giant cells with background of which was possibly the reason for acute neurological deterioration in this case. Brown tumors of the spine can mimic lytic lesions of the spine like myeloma and metastasis. Suspicion must be raised given in the setting of CKD and hyperparathyroidism. They can present with hemorrhage and acute neurological deficit, which warrants urgent surgical intervention for optimal outcomes.

2.
Best Pract Res Clin Obstet Gynaecol ; : 102536, 2024 Aug 03.
Artículo en Inglés | MEDLINE | ID: mdl-39112342

RESUMEN

Bladder endometriosis accounts for 70-85% of urinary tract endometriosis cases. Urinary tract endometriosis occurs in approximately 1% of those living with endometriosis. Underlying aetiology and pathogenesis are not fully understood, but there are several plausible theories. As well as the typical pain symptoms, those with bladder endometriosis can experience several urinary tract symptoms. The manifestation of these symptoms can have complex pathways and processes. Imaging is accurate in the diagnosis of bladder endometriosis and clinicians should be mindful of the risk of silent kidney loss. Management should be guided by symptoms; both medical and surgical options are feasible. Surgical management offers potentially definitive treatment. Excisional surgery via bladder shave or partial cystectomy offers good improvement in symptoms with relatively low rates of serious complications and recurrence.

3.
AsiaIntervention ; 10(2): 126-134, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39070976

RESUMEN

Background: Coronary endarteritis and stent abscess following percutaneous coronary intervention (PCI) are rare and challenging conditions with no clear treatment guidelines available. Aims: This retrospective study aims to present the clinical features, patient and procedural factors, management strategies, and outcomes in 11 consecutive cases referred between 2018 and 2022. Methods: We retrospectively analysed 11 cases of coronary endarteritis and stent abscess post-PCI that were referred from various centres. We recorded clinical features, patient demographics, procedural factors, and management approaches, and evaluated treatment outcomes. Results: Among the 11 patients, 7 (63.6%) were male. PCIs had been performed in the right coronary artery (6, 54.5%), left anterior descending artery (3, 27.3%), and circumflex artery (2, 18.2%). The presenting symptoms included fever, pericarditis with effusion, tamponade, and postinterventional angina due to stent occlusion. Fever occurred in 10 (90.9%) patients, and the majority (70%) of patients experienced fever within one week of PCI. Staphylococcus aureus was the predominant organism (54.5%), followed by Pseudomonas aeruginosa. Transthoracic echocardiography revealed abscess cavities in 10 patients. All patients received vancomycin and piperacillin-tazobactam. Surgery was considered in 7 cases with abscesses >2 cm; one patient refused and responded to antibiotics for 4 weeks. Possible risk factors included repeated use of local sites, reuse of hardware, multiple guidewire manipulations, prolonged catheterisation, inadequate sterility, and diabetes. Conclusions: This study provides insights into coronary endarteritis and stent abscess following PCI. The lack of clear treatment guidelines highlights the challenges in managing this condition. Identifying risk factors may aid in preventive strategies. Further research is needed to develop standardised approaches for effective management.

4.
Cureus ; 16(5): e59924, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38854359

RESUMEN

Aim The aim of the study was to compare the effectiveness of chitosan nanoparticle pretreatment with four different remineralizing agents in artificial white spot lesions. Methods  A total of 100 human maxillary first premolars were selected and divided into five groups of 20 samples in each group. Artificial white spot lesions were created by immersing the samples in the demineralizing solution for 96 hours. Chitosan pretreatment was done for all samples followed by subjecting Group I samples to artificial saliva (control), Group II samples to 3M Clinpro, Group III samples to GC Tooth Mousse, Group IV samples to SHY-NM, and Group V samples with Aclaim using a cotton applicator tip. Each group was divided into two subgroups of 10 samples, which were subjected to hardness testing and mineral content analysis. Surface microhardness and the calcium phosphorous ratio were recorded using a Vickers microhardness tester and energy-dispersive X-ray (EDAX) analysis at three levels i.e., baseline, after demineralization, and after remineralization and tabulated. Statistical analysis was conducted by analyzing data using ANOVA and post hoc followed by Dunnett's t-test using IBM SPSS Statistics for Windows, Version 16 (Released 2007; IBM Corp., Armonk, New York, United States). Results Vickers surface hardness testing and EDAX analysis showed statistically significant values for all the groups. Among them, maximum remineralization potential was seen in samples treated with Chitosan and 3M Clinpro combination, and minimum remineralization potential was seen in Chitosan and artificial saliva combination. Conclusion The addition of chitosan nanoparticles with various remineralizing agents showed a significant synergistic effect on remineralization activity. Also, chitosan and Clinpro combination showed the maximum surface hardness and EDAX analysis values when compared to other groups.

5.
AAPS PharmSciTech ; 25(5): 134, 2024 Jun 11.
Artículo en Inglés | MEDLINE | ID: mdl-38862663

RESUMEN

Inclusion complexes require higher concentration of Beta cyclodextrins (ßCD) resulting in increased formulation bulk, toxicity, and production costs. This systematic review offers a comprehensive analysis using Quality by design (QbD) as a tool to predict potential applications of Polyvinylpyrrolidone (PVP) as a ternary substance to address issues of inclusion complexes. We reviewed 623 documents from 2013 to 2023 and Eighteen (18) research papers were selected for statistical and meta-analysis using the QbD concept to identify the most critical factors for selecting drugs and effect of PVP on inclusion complexes. The QbD analysis revealed that Molecular weight (MW), Partition coefficient (Log P), and the auxiliary substance ratio directly affected complexation efficiency (CE), thermodynamic stability in terms of Gibbs free energy (ΔG), and percent drug release. However, Stability constant (Ks) remained unaffected by any of these parameters. The results showed that low MW (250), median Log P (6), and a ßCD: PVP ratio of 2:3 would result in higher CE, lower G, and improved drug release. PVP improves drug solubility, enhances delivery and therapeutic outcomes, and counteracts increased drug ionization due to decreased pH. In certain cases, its bulky nature and hydrogen bonding with CD molecules can form non-inclusion complexes. The findings of the study shows that there is potential molecular interaction between PVP and ß-cyclodextrins, which possibly enhances the stability of inclusion complexes for drug with low MW and log P values less than 9. The systematic review shows a comprehensive methodology based on QbD offers a replicable template for future investigations into drug formulation research.


Asunto(s)
Ciclodextrinas , Povidona , Solubilidad , beta-Ciclodextrinas , beta-Ciclodextrinas/química , Química Farmacéutica/métodos , Ciclodextrinas/química , Liberación de Fármacos , Excipientes/química , Peso Molecular , Proyectos Piloto , Povidona/química , Termodinámica
6.
Minerva Urol Nephrol ; 76(3): 320-330, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38920012

RESUMEN

BACKGROUND: The relationship between venous thromboembolism (VTE) and solid malignancy has been established over the decades. With rising projected rates of bladder cancer (BCa) worldwide as well as increasing number of patients experiencing BCa and VTE, our aim is to assess the impact of a preoperative VTE diagnosis on perioperative outcomes and health-care costs in BCa cases undergoing radical cystectomy (RC). METHODS: Patients ≥18 years of age with BCa diagnosis and undergoing open or minimally invasive (MIS) RC were identified in the Merative™ Marketscan® Research Databases between 2007 and 2021. The association of previous VTE history with 90-day complication rates, postoperative VTE events, rehospitalization, and total hospital costs (2021 USA dollars) was determined by multivariable logistic regression modeling adjusted for patient and perioperative confounders. Sensitivity analysis on VTE degree of severity (i.e., pulmonary embolism [PE] and/or peripheral deep venous thrombosis [DVT]) was also examined. RESULTS: Out of 8759 RC procedures, 743 (8.48%) had a previous positive history for any VTE including 245 (32.97%) PE, 339 (45.63%) DVT and 159 (21.40%) superficial VTE. Overall, history of VTE before RC was strongly associated with almost any worse postoperative outcomes including higher risk for any and apparatus-specific 90-days postoperative complications (odds ratio [OR]: 1.21, 95% CI, 1.02-1.44). Subsequent incidence of new VTE events (OR: 7.02, 95% CI: 5.93-8.31), rehospitalization (OR: 1.25, 95% CI: 1.06-1.48), other than home/self-care discharge status (OR: 1.53, 95% CI: 1.28-1.82), and higher health-care costs related to the RC procedure (OR: 1.43, 95% CI: 1.22-1.68) were significantly associated with a history of VTE. CONCLUSIONS: Preoperative VTE in patients undergoing RC significantly increases morbidity, post-procedure VTE events, hospital length of stay, rehospitalizations, and increased hospital costs. These findings may help during the BCa counseling on risks of surgery and hopefully improve our ability to mitigate such risks.


Asunto(s)
Cistectomía , Complicaciones Posoperatorias , Neoplasias de la Vejiga Urinaria , Tromboembolia Venosa , Humanos , Cistectomía/efectos adversos , Tromboembolia Venosa/epidemiología , Tromboembolia Venosa/economía , Tromboembolia Venosa/etiología , Masculino , Femenino , Estados Unidos/epidemiología , Anciano , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/economía , Complicaciones Posoperatorias/etiología , Neoplasias de la Vejiga Urinaria/cirugía , Costos de la Atención en Salud/estadística & datos numéricos , Procedimientos Quirúrgicos Mínimamente Invasivos/economía , Readmisión del Paciente/estadística & datos numéricos , Readmisión del Paciente/economía , Estudios Retrospectivos , Periodo Preoperatorio
7.
IEEE J Transl Eng Health Med ; 12: 359-370, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38606391

RESUMEN

Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder commonly seen in childhood that leads to behavioural changes in social development and communication patterns, often continues into undiagnosed adulthood due to a global shortage of psychiatrists, resulting in delayed diagnoses with lasting consequences on individual's well-being and the societal impact. Recently, machine learning methodologies have been incorporated into healthcare systems to facilitate the diagnosis and enhance the potential prediction of treatment outcomes for mental health conditions. In ADHD detection, the previous research focused on utilizing functional magnetic resonance imaging (fMRI) or Electroencephalography (EEG) signals, which require costly equipment and trained personnel for data collection. In recent years, speech and text modalities have garnered increasing attention due to their cost-effectiveness and non-wearable sensing in data collection. In this research, conducted in collaboration with the Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, we gathered audio data from both ADHD patients and normal controls based on the clinically popular Diagnostic Interview for ADHD in adults (DIVA). Subsequently, we transformed the speech data into text modalities through the utilization of the Google Cloud Speech API. We extracted both acoustic and text features from the data, encompassing traditional acoustic features (e.g., MFCC), specialized feature sets (e.g., eGeMAPS), as well as deep-learned linguistic and semantic features derived from pre-trained deep learning models. These features are employed in conjunction with a support vector machine for ADHD classification, yielding promising outcomes in the utilization of audio and text data for effective adult ADHD screening. Clinical impact: This research introduces a transformative approach in ADHD diagnosis, employing speech and text analysis to facilitate early and more accessible detection, particularly beneficial in areas with limited psychiatric resources. Clinical and Translational Impact Statement: The successful application of machine learning techniques in analyzing audio and text data for ADHD screening represents a significant advancement in mental health diagnostics, paving the way for its integration into clinical settings and potentially improving patient outcomes on a broader scale.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Adulto , Humanos , Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Resultado del Tratamiento , Imagen por Resonancia Magnética
9.
Can J Neurol Sci ; : 1-6, 2024 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-38523490

RESUMEN

The Canadian League Against Epilepsy initiated a virtual epilepsy education program, conducting 29 webinars from March 2021 to September 2023. We report our experience, with the goal to inspire other groups to develop inclusive, equitable, and free educational spaces with a worldwide reach. Monthly sessions drew a median attendance of 118 participants, predominantly Canadian but also international, including physicians (58.9%) and trainees (22.8%). Post-webinar surveys (average 40% response rate) noted high satisfaction, a strong inclination to recommend the sessions, and an interest in clinical case-based topics. We plan to consider integrating a self-assessment section evaluating knowledge gained after each seminar.

10.
Eur Urol Focus ; 10(2): 317-324, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38433067

RESUMEN

BACKGROUND AND OBJECTIVE: Venous thromboembolism (VTE) is a significant predictor of worse postoperative morbidity in cancer surgeries. No data have been available for patients with preoperative VTE and upper tract urothelial carcinoma (UTUC) undergoing radical nephroureterectomy (RNU). Our aim was to assess the impact of a preoperative VTE diagnosis on perioperative outcomes in the RNU context. METHODS: Patients aged 18 yr or older with a UTUC diagnosis undergoing RNU were identified in the Merative Marketscan Research deidentified databases between 2007 and 2021. Multivariable logistic regression adjusted by relevant perioperative confounders was used to investigate the association between a diagnosis of VTE prior to RNU and 90-d complication rates, postoperative VTE, rehospitalization, and total costs. A sensitivity analysis on VTE severity (pulmonary embolism [PE] and/or deep venous thrombosis [DVT]) was examined. KEY FINDINGS AND LIMITATIONS: Within the investigated cohort of 6922 patients, history of any VTE preceding RNU was reported in 568 (8.21%) cases, including DVT (n = 290, 51.06%), PE (n = 169, 29.75%), and superficial VTE (n = 109, 19.19%). The history of VTE before RNU was predictive of higher rates of complications, the most prevalent being respiratory complications (odds ratio [OR]: 1.78, 95% confidence interval [CI]: 1.43-2.22). Preoperative VTE was found to be associated with an increased risk of VTE following RNU (OR: 14.3, 95% CI: 11.48-17.82), higher rehospitalization rates (OR: 1.26, 95% CI 1.01-1.56) other than home discharge status (OR: 1.44, 95% CI: 1.18-1.77), and higher costs (OR 1.42, 95% CI: 1.20-1.68). Limitations include the retrospective nature and the use of an insurance database that relies on accurate coding and does not include information such as pathologic staging. CONCLUSIONS AND CLINICAL IMPLICATIONS: The presented findings will contribute to the counseling process for patients. These patients may benefit from enhanced pre/postoperative anticoagulation. More research is needed before the following results can be used in the clinical setting. PATIENT SUMMARY: Patients aged 18 yr or older with an upper tract urothelial carcinoma (UTUC) diagnosis undergoing radical nephroureterectomy (RNU) were identified in the Merative Marketscan Research deidentified databases between 2007 and 2021. Multivariable logistic regression adjusted by relevant perioperative confounders was used to investigate the association between a diagnosis of venous thromboembolism (VTE) prior to RNU and 90-d complication rates, postoperative VTE, rehospitalization, and total costs. A sensitivity analysis on VTE severity (pulmonary embolism and/or deep venous thrombosis) was examined. The presented findings will contribute to the counseling of patients with UTUC and preoperative VTE.


Asunto(s)
Carcinoma de Células Transicionales , Costos de la Atención en Salud , Neoplasias Renales , Nefroureterectomía , Complicaciones Posoperatorias , Tromboembolia Venosa , Humanos , Femenino , Masculino , Persona de Mediana Edad , Tromboembolia Venosa/epidemiología , Tromboembolia Venosa/etiología , Tromboembolia Venosa/economía , Anciano , Nefroureterectomía/métodos , Complicaciones Posoperatorias/epidemiología , Estados Unidos , Carcinoma de Células Transicionales/cirugía , Carcinoma de Células Transicionales/complicaciones , Neoplasias Renales/cirugía , Neoplasias Renales/complicaciones , Neoplasias Ureterales/cirugía , Neoplasias Ureterales/complicaciones , Estudios Retrospectivos , Revisión de Utilización de Seguros , Resultado del Tratamiento , Adulto
11.
J Maxillofac Oral Surg ; 23(1): 132-134, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38312976

RESUMEN

Abstract: Secondary correction for aesthetic purposes can be more challenging as the fractured segments may be united in abnormal positions and would require osteotomy procedures before mobilizing the segments for reconstruction. Such maneuvers require adequate exposure and visibility. The subcranial approach is an effective alternate to classical approaches, which required frontal lobe retraction. Conclusion: Subcranial approach is a viable alternative to posttraumatic deformity of frontal bone.

12.
Opt Lett ; 49(3): 510-513, 2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-38300046

RESUMEN

Color centers in nanodiamonds (NDs) have been largely explored by coupling to a photonic structured matrix (PSM) to amplify visible range emission features, enhancing their use in quantum technologies. Here, we study the emission enhancement of dual near-infrared zero phonon line (ZPL) emission from silicon-boron (SiB) and silicon-vacancy (SiV-) centers in NDs using a spontaneously emerged low index-contrast quasiperiodic PSM, having micron-scale air pores. An intensity enhancement factor of 6.15 for SiV- and 7.8 for SiB ZPLs is attained for the PSM sample compared to a control sample. We find Purcell enhancement of 2.77 times for the PSM sample using spatial-dependent decay rate measurements, supported by localized field intensity confinement in the sample. Such cavity-like emission enhancement and lifetime reduction are enabled by an in-plane order-disorder scattering in the PSM sample substantiated by pump-dependent emission measurements. The results put forward a facile approach to tailor the near-infrared dual ZPL emission from NDs using nanophotonic structures.

13.
J Minim Invasive Gynecol ; 31(5): 368, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38360392

RESUMEN

STUDY OBJECTIVE: To highlight a case where a nephroureterectomy and partial bladder cystectomy needed to be done due to endometriosis. DESIGN: A video article demonstrating a case study and the surgical management. SETTING: Ureteral endometriosis is a complex form of endometriosis [1]. If left untreated, the ureter can become significantly compressed leading to hydroureter, hydronephrosis and complete loss of kidney function [2]. INTERVENTIONS: This is a case of a 29-year-old patient with pelvic pain and cyclical rectal bleeding. Further investigation showed significant left hydronephrosis and almost complete loss of left kidney function (8% on renogram). MRI revealed endometriosis involving the posterior bladder wall and distal left ureter, a large full-thickness sigmoid nodule and a large left endometrioma. The patient underwent a robotic-assisted left nephroureterectomy, partial cystectomy (bladder), excision of pelvic endometriosis and sigmoid resection. This procedure was performed jointly with the gynecologist, urologist, and colorectal surgeon and the SOSURE technique was employed [3]. The specimen (left kidney, whole length of ureter and bladder wall around ureteric orifice) was removed en-bloc through a small 3cm extension of the umbilical incision. As the distance between the sigmoid nodule and the anal verge was 35cm, which was above the limit of the transanal circular stapler, a limited resection was performed over a discoid excision. The patient made a good recovery postoperatively. CONCLUSION: Ureteral endometriosis is an indolent and aggressive condition which can lead to silent kidney loss. It is essential that hydronephrosis and hydroureter is ruled out in cases with deep endometriosis. Isolated hydronephrosis should also prompt a suspicion for endometriosis.


Asunto(s)
Endometriosis , Procedimientos Quirúrgicos Robotizados , Enfermedades Ureterales , Humanos , Femenino , Endometriosis/cirugía , Endometriosis/complicaciones , Adulto , Procedimientos Quirúrgicos Robotizados/métodos , Enfermedades Ureterales/cirugía , Cistectomía/métodos , Nefroureterectomía/métodos , Vejiga Urinaria/cirugía , Enfermedades de la Vejiga Urinaria/cirugía , Uréter/cirugía , Hidronefrosis/cirugía , Hidronefrosis/etiología
14.
Chemistry ; 30(7): e202303558, 2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-38037264

RESUMEN

Polymorphic forms of organic conjugated small molecules, with their unique molecular shapes, packing arrangements, and interaction patterns, provide an excellent opportunity to uncover how their microstructures influence their observable properties. Ethyl-2-(1-benzothiophene-2-yl)quinoline-4-carboxylate (BZQ) exists as dimorphs with distinct crystal habits - blocks (BZB) and needles (BZN). The crystal forms differ in their molecular arrangements - BZB has a slip-stacked column-like structure in contrast to a zig-zag crystal packing with limited π-overlap in BZN. The BZB crystals characterized by extended π-stacking along [100] demonstrated semiconductor behavior, whereas the BZN, with its zig-zag crystal packing and limited stacking characteristics, was reckoned as an insulator. Monotropically related crystal forms also differ in their nanomechanical properties, with BZB crystals being considerably softer than BZN crystals. This discrepancy in mechanical behavior can be attributed to the distinct molecular arrangements adopted by each crystal form, resulting in unique mechanisms to relieve the strain generated during nanoindentation experiments. Waveguiding experiments on the acicular crystals of BZN revealed the passive waveguiding properties. Excitation of these crystals using a 532 nm laser confirmed the propagation of elastically scattered photons (green) and the subsequent generation of inelastically scattered (orange) photons by the crystals. Further, the dimorphs display dissimilar photoluminescence properties; they are both blue-emissive, but BZN displays twice the quantum yield of BZB. The study underscores the integral role of polymorphism in modulating the mechanical, photophysical, and conducting properties of functional molecular materials. Importantly, our findings reveal the existence of light-emitting crystal polymorphs with varying electric conductivity, a relatively scarce phenomenon in the literature.

16.
Asian J Neurosurg ; 18(3): 698-700, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38152545

RESUMEN

Medulloblastoma is the most common malignant pediatric brain tumor. Histological subclassification and adjuvant therapy have improved prognostication and outcome. Extraneural metastasis remains a poor prognostic factor and subcutaneous seeding is rarely encountered and reported in the pediatric population. We report a 3-year-old child who rapidly presented with subcutaneous seeding a month following gross total resection of his tumor.

17.
Ann Indian Acad Neurol ; 26(4): 502-506, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37970280

RESUMEN

Background: Spontaneous intracerebral hemorrhage (SICH) accounts for about 10-15% of all strokes. Generally, it is a disease of the elderly; worldwide, the incidence of SICH in the young is showing an increasing trend, especially in India and the Asian continent. An attempt is also made to analyze the presence of factors, which may predict the risk of SICH among young hypertensives. Methods: A six-year retrospective review of patients aged below 50 years who presented with SICH was included in the study. Patients with bleeds secondary to an identifiable cause such as tumor, trauma, vascular malformations, and coagulopathy-induced bleeds were excluded from the study. The outcome was measured at 90 days using the modified ranking scale, and predictors of outcome (good outcome modified ranking score (mRS): 0-3; poor outcome mRS: 4-6) were analyzed. Results: SICH in the young accounted for 28.4% of all intracerebral hemorrhage (ICH) patients admitted during the study period (344/1210). The mean age of our male-dominant (78.5%) cohort was 42.9 ± 6.24 years, and the median Glasgow coma score (GCS) on presentation was 11 (IQR: 8-14). A prior history of hypertension (HTN) was obtained in 51.2% (176), and left ventricular hypertrophy (LVH) was documented in 237 (68.9%) patients. The basal ganglia was the most common location of the bleed (62.2%). At 90 days, 200 patients (58.1%) had good outcome and 144 (41.9%) had poor outcome with an overall mortality of 75 (21.8%). Independent predictors of poor outcome were poor GCS, larger volume, and high serum creatinine values. Conclusion: The incidence of SICH among the young accounts for nearly 30% of admitted ICH. Poor outcome and mortality are high with HTN being the single most important modifiable risk factor in the cohort.

18.
World J Nucl Med ; 22(3): 191-195, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37854083

RESUMEN

Background Flourine-18 fluorodeoxyglucose positron emission tomography-computed tomography ( 18 F-FDG PET-CT) is a well-established imaging modality for the evaluation of patients with oncological and nononcological conditions. The underlying principle of imaging is the preferentially increased glucose consumption by cancer cells, due to overexpression of glucose type 1 receptors that are insulin independent. Thus, one of the factors that leads to decreased sensitivity of an 18 F-FDG PET-CT is elevated blood sugar levels, leading to decreased glucose uptake by cancer cells due to competitive inhibition. A significant percentage of patients scheduled for PET-CT scan has diabetes mellitus type II as a comorbid condition and often has elevated random blood sugar (RBS) precluding an upfront PET-CT evaluation. Such cases must be rescheduled. This causes delay in the evaluation and management of such patients. Empagliflozin is a novel sodium glucose type 2 inhibitor that prevents tubular reabsorption of glucose and increases renal glycosuria resulting in decreased blood sugar. This drug does not cause significant hypoglycemia or increase endogenous insulin secretion. This study was undertaken to evaluate a potential role for empagliflozin in facilitating optimal blood sugar control in patients with hyperglycemia on the day of the scheduled PET scan. Methods This is an interventional prospective study and patients detected to have RBS more than 200 mg/dL on the day of the scheduled scan were included in the study. The patients were administered two tablets of 10 mg empagliflozin and kept under observation. Samples for RBS were taken at approximately 2nd and 4th hour post administration by bedside method. These patients underwent scan on the same day after adequate sugar control and when an RBS of less than 200 mg/dL was achieved. The primary outcome studied was change in RBS values in the patient cohort and evaluation of PET SUV (standardized uptake value) compared with the rest of the patients scheduled on the same day. Secondary outcome was assessment of any side effects in the patients. Results Total of 10 patients were found to have elevated blood sugar (RBS > 200 mg/dL; irrespective of being on medication) and did not meet the evaluation criteria for a PET-CT scan on the scheduled day. Following administration of the drug, all 10 patients were able to attain blood sugar levels and fulfill the criteria for undergoing a PET-CT scan. No obvious side effect was noted in any of the patient. The SUV values of the patient cohort were comparable with the rest of the patient scanned on the day. Conclusion In this pilot study, 20 mg of empagliflozin (2 tablets of 10 mg) appears to be a safe and effective method for achieving optimal decrease in the RBS without causing hypoglycemia or hyperinsulinemia. It can be safely employed in the subset of population with RBS between 201 and 300 mg/dL to adequately bring the sugar levels at acceptable levels RBS less than 200 mg/dl and fulfill the FDG PET-CT criteria as per European Association of Nuclear Medicine (EANM) norms.

19.
World J Urol ; 41(10): 2783-2791, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37548746

RESUMEN

BACKGROUND: Chemoprotective effect of 5-alpha reductase inhibitors (5-ARi) on bladder cancer (BCa) risk in men with Benign Prostatic Hyperplasia (BPH) has been explored with conflicting results. We sought to examine the effect of 5-ARi on new BCa diagnoses in a large US database. METHODS: Men ≥ 50 y/o with a prescription for 5-ARi after BPH diagnosis were identified in the IBM® Marketscan® Research de-identified Databases between 2007 and 2016 and matched with paired controls. Incident BCa diagnoses were identified after BPH diagnosis and/or pharmacologic treatment. Multivariable regression modeling adjusting for relevant factors was implemented. Sub-group analyses by exposure risk were performed to explore the association between 5-ARi and BCa over time. Administration of alpha-blockers (α-B) w/o 5-ARi was also examined. RESULTS: In total, n = 24,036 men on 5-ARi, n = 107,086 on 5-ARi plus alpha-blockers, and n = 894,275 without medical therapy for BPH were identified. The percentage of men diagnosed with BCa was 0.8% for the 5-ARi, 1.4% for the 5-ARi + α-B, and 0.6% for the untreated BPH group of incident BCa (adjusted hazard ratio [aHR], 0.90, 95% confidence interval [CI] 0.56 - 1.47), and 1.08, 95%CI 0.89 - 1.30, respectively). This was also true at both shorter (≤ 2 yr) and longer-term (> 2 yr) follow up. In addition, α-B alone had no change in BCa risk (HR 1.06, 0.86-1.30). CONCLUSIONS: We did not find any diminished risk of new BCa in men treated with 5-ARi (i.e., chemoprotective effect). The current report suggests that 5-ARi do not change a man's bladder cancer risk.


Asunto(s)
Seguro , Hiperplasia Prostática , Neoplasias de la Vejiga Urinaria , Masculino , Humanos , Estados Unidos/epidemiología , Inhibidores de 5-alfa-Reductasa/uso terapéutico , Hiperplasia Prostática/tratamiento farmacológico , Hiperplasia Prostática/epidemiología , Riesgo , Neoplasias de la Vejiga Urinaria/epidemiología , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico
20.
World Neurosurg X ; 20: 100227, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37456693

RESUMEN

Background: Published literature on epidemiological profile of paediatric brain tumours in India is limited. Aim: To present a retrospective analysis of the histological spectrum of 158 paediatric age group central nervous system tumours operated in a single tertiary care hospital in Coastal South India between January 2015 and December 2021. Material and methods: Retrospective analysis of the data regarding frequencies of various primary brain tumours among 158 paediatric patients (<18 years of age). The tumours were categorised according to the revised 4th edition of World Health Organization (WHO) classification of tumours of the Central Nervous system. Results: Paediatric CNS constituted 8.5% of total intracranial tumours (158/1860) operated in the study period. The mean age of the patients was 10.2 years and a definite male predominance was noted (1.54:1) Astrocytomas, glioneuronal tumours, and neuronal tumours constituted the majority (72/158; 45.6%) followed by embryonal tumours (31/158; 19.6%) and craniopharyngiomas(24/158; 15.4%).Of the glial neoplasms majority were pilocytic and other astrocytic tumours(41.6%), followed by mixed neuroglial tumours (19.4%), diffuse high grade astrocytomas (Grade III/IV) (11.1%), diffuse low -grade astrocytomas (Grade II) (9.7%) and ependymomas (13.8%). Our series also included six meningiomas (3.8%), five germ cell tumours (3.16%), four nerve sheath tumours (2.53%), two choroid plexus tumours (1.26%), two pineal parenchymal tumours (1.26%) and one metastasis from a soft tissue sarcoma from the thigh. Supratentorial tumours (58.2%) were more common than posterior fossa (34.6%) and spinal tumours (7.6%) and visual pathway gliomas accounted for 5.6% of all our tumours. Conclusions: Paediatric central nervous system tumours are more common in boys and in the second decade of life. Astrocytomas are the most common paediatric brain tumours followed by medulloblastomas and craniopharyngiomas. Pediatric tumours affect the supratentorial compartment more often than the infratentorial compartment. The profile of paediatric brain tumours in our series is similar to that reported from other Indian centres as well as most western literature.

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