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Ugeskrift For Laeger Jul 2024Smudge cells can be defined as ruptured or destroyed cells - most commonly lymphocytes where cytoplasm and nuclei get smudged during smear test of the patient's... (Review)
Review
Smudge cells can be defined as ruptured or destroyed cells - most commonly lymphocytes where cytoplasm and nuclei get smudged during smear test of the patient's blood/preparation of slides. When finding smudge cells, it is recommended to control the lab work frequently. If a persistent or higher number of smudge cells are found during 3 months, it should lead to a referral to the hematologist. The purpose of this review is to give an overview of smudge cells and conditions in which they can be found, as well as management of the findings.
Topics: Humans; Lymphocytes; Cytoplasm
PubMed: 38953677
DOI: 10.61409/V11230714 -
Operative Neurosurgery (Hagerstown, Md.) Jul 2024Retroclival hematomas are a rare entity, presenting anteriorly to the brainstem in the epidural, subdural, or subarachnoid space. Although those that develop in the...
Retroclival hematomas are a rare entity, presenting anteriorly to the brainstem in the epidural, subdural, or subarachnoid space. Although those that develop in the epidural space often arise from trauma, subdural retroclival hematomas frequently occur spontaneously in the setting of coagulopathy, aneurysm rupture, or pituitary apoplexy, with many cases having an unknown etiology.1-4 Although most are treated with conservative management, surgical intervention is preferred for those presenting with evidence of brainstem compression, hydrocephalus, worsening neurological deficits, and clinical deterioration.5 In this report, we present the case of a 75-year-old woman with a medical history of mitral regurgitation, nonischemic cardiomyopathy, and atrial fibrillation on warfarin presenting with 4 days of temporoparietal headaches and double vision. On examination, the patient demonstrated right abducens and hypoglossal nerve palsies. Computed tomography revealed a subdural hemorrhage within the retroclival cistern, extending into the dorsal inferior aspect of the C2 vertebral body, resulting in posterior displacement of the pons, medulla, and proximal cervical spinal cord. Spinal and cerebral angiograms did not show evidence of any vascular malformation. An endoscopic transclival approach was selected for hematoma evacuation. Key surgical steps included harvesting of nasoseptal flap, endoscopic transnasal approach to the sellar/subsellar space, transclival drilling, retroclival hematoma evacuation, and clival reconstruction. The patient tolerated the procedure well and was discharged 15 days postoperatively with resolution of prior cranial nerve deficits. Postoperative computed tomography imaging revealed complete retroclival hematoma evacuation. At her 3-month follow-up, the patient remained neurologically intact with imaging confirming no residual subdural hematoma. Institutional Review Board approval was obtained for this submission (2018-9379). Patient consent was not obtained as personal identifying information was kept confidential, following guidelines set forth by Institutional Review Board requirements.
PubMed: 38953671
DOI: 10.1227/ons.0000000000001242 -
Advanced Science (Weinheim,... Jul 2024Bubbles and foams are often removed via chemical defoamers and/or mechanical agitation. Designing surfaces that promote chemical-free and energy-passive bubble capture...
Bubbles and foams are often removed via chemical defoamers and/or mechanical agitation. Designing surfaces that promote chemical-free and energy-passive bubble capture is desirable for numerous industrial processes, including mineral flotation, wastewater treatment, and electrolysis. When immersed, super-liquid-repellent surfaces form plastrons, which are textured solid topographies with interconnected gas domains. Plastrons exhibit the remarkable ability of capturing bubbles through coalescence. However, the two-step mechanics of plastron-induced bubble coalescence, namely, rupture (initiation and location) and subsequent absorption (propagation and drainage) are not well understood. Here, the influence of 1) topographical feature size and 2) gas fraction on bubble capture dynamics is investigated. Smaller feature sizes accelerate rupture while larger gas fractions markedly improve absorption. Rupture is initiated solely on solid domains and is more probable near the edges of solid features. Yet, rupture time becomes longer as solid fraction increases. This counterintuitive behavior represents unexpected complexities. Upon rupture, the bubble's moving liquid-solid contact line influences its absorption rate and equilibrium state. These findings show the importance of rationally minimizing surface feature sizes and contact line interactions for rapid bubble rupture and absorption. This work provides key design principles for plastron-induced bubble coalescence, inspiring future development of industrially-relevant surfaces for underwater bubble capture.
PubMed: 38953394
DOI: 10.1002/advs.202403366 -
Small (Weinheim An Der Bergstrasse,... Jul 2024Abdominal aortic aneurysm (AAA) represents a critical cardiovascular condition characterized by localized dilation of the abdominal aorta, carrying a significant risk of...
Abdominal aortic aneurysm (AAA) represents a critical cardiovascular condition characterized by localized dilation of the abdominal aorta, carrying a significant risk of rupture and mortality. Current treatment options are limited, necessitating novel therapeutic approaches. This study investigates the potential of a pioneering nanodrug delivery system, RAP@PFB, in mitigating AAA progression. RAP@PFB integrates pentagalloyl glucose (PGG) and rapamycin (RAP) within a metal-organic-framework (MOF) structure through a facile assembly process, ensuring remarkable drug loading capacity and colloidal stability. The synergistic effects of PGG, a polyphenolic antioxidant, and RAP, an mTOR inhibitor, collectively regulate key players in AAA pathogenesis, such as macrophages and smooth muscle cells (SMCs). In macrophages, RAP@PFB efficiently scavenges various free radicals, suppresses inflammation, and promotes M1-to-M2 phenotype repolarization. In SMCs, it inhibits apoptosis and calcification, thereby stabilizing the extracellular matrix and reducing the risk of AAA rupture. Administered intravenously, RAP@PFB exhibits effective accumulation at the AAA site, demonstrating robust efficacy in reducing AAA progression through multiple mechanisms. Moreover, RAP@PFB demonstrates favorable biosafety profiles, supporting its potential translation into clinical applications for AAA therapy.
PubMed: 38953313
DOI: 10.1002/smll.202402141 -
Nigerian Medical Journal : Journal of... 2023Knee joint pathologies/injuries are one of the most common musculoskeletal complaints in adults worldwide. The aetiologies of knee joint disorders are diverse. Magnetic...
BACKGROUND
Knee joint pathologies/injuries are one of the most common musculoskeletal complaints in adults worldwide. The aetiologies of knee joint disorders are diverse. Magnetic resonance imaging (MRI) is a sophisticated method of detecting and characterizing knee pathologies. This study was conducted to document the clinical presentation and MRI patterns of knee joint abnormalities in a group of adults in Lagos, Nigeria, and to juxtapose it with reports from other climes.
METHODOLOGY
A retrospective hospital-based analysis of the knee MRI of 158 adult Nigerians was conducted in a single health facility. The clinical history and knee MRI findings were extracted, analyzed, and documented. Statistical significance was established at ≤0.05.
RESULTS
There were 158 participants comprising 92 males (58.2%) and 66 females (41.8%) between the ages of 18 and 79. The mean age of the males was 44.75 ± 14.41 years, while that of the females was 47.76 ± 13.72 years ( = 0.19). A history of previous trauma was elicited in 135 (85.4%) participants. Eighty-two right knees (51.9%) and 76 left knees (48.1%) were examined. The dominant joint pathologies detected include effusion (77.2%), medial meniscopathy (48.1%), tibial abnormalities (46.2%), femoral abnormalities (46.2%), patella abnormalities (46.2%), anterior cruciate ligament disorders (37.3%), lateral meniscopathy (27.2%), medial collateral ligament disorders (22.2%), and popliteal (Baker's) cysts (15.8%). ACL abnormalities were significantly more prevalent in male subjects. Knees with ruptured sACL had significantly more joint effusion and injuries to the medial meniscus, lateral meniscus, posterior cruciate ligament (PCL), medial retinacular ligament (MRL), femur, tibia, and fibula. There was no significant difference in the frequency of abnormalities between the right and left knees.
CONCLUSION
Joint effusion, medial meniscopathy, osseous abnormalities (tibia, femur, patella), ACL abnormalities, lateral meniscopathy, and MCL abnormalities, in decreasing order, were the most frequent pathologies in the knee joints evaluated.
PubMed: 38952880
DOI: 10.60787/NMJ-64-4-334 -
Nigerian Medical Journal : Journal of... 2023Oligohydramnios is defined as amniotic fluid index (AFI) less than or equal to 5cm. A borderline AFI has been defined as an AFI of 5.1cm to 8cm. The incidence of...
Comparison of the Effect of Injection Enoxaparin Versus Conventional Treatment on Amniotic Fluid Index in Borderline Oligohydramnios in Third Trimester of Pregnancy: A Randomized Control Trial in a Tertiary Care Hospital.
BACKGROUND
Oligohydramnios is defined as amniotic fluid index (AFI) less than or equal to 5cm. A borderline AFI has been defined as an AFI of 5.1cm to 8cm. The incidence of borderline AFI compared with a normal AFI (8.1cm to 18cm) is 6% to 44% in different studies. A decrease in amniotic fluid leads to serious complications for the mother and fetus. The study objective was to evaluate if an injection of Enoxaparin improves the amount of liquor in oligohydramnios in the third trimester of pregnancy.
METHODOLOGY
A randomized controlled trial was conducted at a tertiary care obstetric center, involving a total of 130 participants. Inclusion criteria include participant in 3 trimester of pregnancy, singleton pregnancy, intact amniotic membranes, and no known medical disorder. Patients with multiple pregnancies, ruptured amniotic membranes, anomalous fetuses, and known medical disorders were excluded. These participants were divided into two groups, each consisting of 65 participants. Group A received conventional treatment (intravenous fluid, tablet Aspirin, and rest in lateral position), while Group B received an injection of enoxaparin in addition to conventional treatment. AFI measurements were performed in the radiology department by radiologists using standard 4 quadrant measurements, twice weekly after the initiation of the treatment. The weight of the baby noted at birth and admission to neonatal intensive care was noted to assess the health of the neonate. Data was analyzed on SPSS (statistical package for social sciences) version 23.
RESULTS
In group A, the AFI increased after treatment in 47(72.3%) patients, remained static in 6(9.2%) patients, and decreased in 12(18.4%) patients. Whereas in group B, AFI increased in 31(68.8%) patients and decreased in 14(31.3%) patients, p= 0.334.
CONCLUSION
The findings in the current study did not demonstrate any significant effect of the use of injection enoxaparin in improving borderline oligohydramnios. Further research is needed to apply this research to the general population.
PubMed: 38952876
DOI: 10.60787/NMJ-64-4-319 -
International Journal of Nanomedicine 2024Myocardial infarction, usually caused by the rupture of atherosclerotic plaque, leads to irreversible ischemic cardiomyocyte death within hours followed by impaired... (Review)
Review
Myocardial infarction, usually caused by the rupture of atherosclerotic plaque, leads to irreversible ischemic cardiomyocyte death within hours followed by impaired cardiac performance or even heart failure. Current interventional reperfusion strategies for myocardial infarction still face high mortality with the development of heart failure. Nanomaterial-based therapy has made great progress in reducing infarct size and promoting cardiac repair after MI, although most studies are preclinical trials. This review focuses primarily on recent progress (2016-now) in the development of various nanomedicines in the treatment of myocardial infarction. We summarize these applications with the strategy of mechanism including anti-cardiomyocyte death strategy, activation of neovascularization, antioxidants strategy, immunomodulation, anti-cardiac remodeling, and cardiac repair.
Topics: Myocardial Infarction; Humans; Nanomedicine; Animals; Myocytes, Cardiac; Antioxidants; Nanostructures; Neovascularization, Physiologic
PubMed: 38952676
DOI: 10.2147/IJN.S467219 -
Cureus Jun 2024The authors report on the case of a 69-year-old female who presented to the emergency department due to exquisite abdominal pain she described as occurring after she...
The authors report on the case of a 69-year-old female who presented to the emergency department due to exquisite abdominal pain she described as occurring after she coughed. Imaging revealed a rectus sheath hematoma (RSH). A RSH is an uncommon but significant cause of acute abdominal pain that occurs when blood accumulates in the sheath of the rectus abdominis muscle. It can be caused by a muscular tear or a ruptured epigastric artery and can happen spontaneously or after trauma. The etiology, presentation, diagnosis, and management are discussed.
PubMed: 38952600
DOI: 10.7759/cureus.61488 -
Cureus Jun 2024Uroperitoneum secondary to spontaneous bladder rupture is a rare cause of ascites associated with significant morbidity and mortality. It can be difficult to detect and...
Uroperitoneum secondary to spontaneous bladder rupture is a rare cause of ascites associated with significant morbidity and mortality. It can be difficult to detect and is often initially mistaken for other, more common etiologies. We present the case of a 56-year-old female with a history of cervical cancer treated with chemotherapy and radiation, radiation proctitis, and diabetes mellitus who presented with subacute onset abdominal pain and distension, urinary retention, and nausea. She had been diagnosed with cervical squamous cell cancer 12 years prior to presentation and was successfully treated with two months of chemotherapy and radiation, and a presumed recurrence five years later was treated to remission with chemotherapy. The golden-yellow appearance of her ascitic fluid during diagnostic paracentesis raised suspicion for urinary ascites that was confirmed by an elevated ascites-to-serum creatinine ratio and computed tomography (CT) cystography. Subsequent CT cystogram demonstrated leakage of contrast from the bladder with a 0.5 cm irregularity noted at the bladder dome, potentially representing the site of extravasation. A Foley catheter was placed at the time of admission with an immediate output of 1 L of fluid. Subsequently, her abdominal distension significantly improved, and her creatinine began to downtrend. Gynecologic oncology and urology were consulted and determined that she was not a candidate for surgical intervention given the significance of her bladder scarring. Positron emission tomography (PET)/CT was performed and revealed no active cancer. At the time of discharge, she had no episodes of emesis. Additionally, her creatinine had fallen to 1.0 mg/dl. She was discharged with a Foley catheter with plans to follow up with outpatient urology. While relatively uncommon, uroperitoneum should be suspected in patients presenting with new-onset ascites who have risk factors for spontaneous bladder rupture such as pelvic irradiation. Uroperitoneum has a significant rate of mortality and morbidity. Ascites urea and creatinine studies, followed by a CT cystogram if these studies are abnormal, should be performed in any patient with risk factors for uroperitoneum. Patients should be managed with the placement of a Foley catheter and urology consultation for surgical evaluation.
PubMed: 38952593
DOI: 10.7759/cureus.61498 -
International Journal For Numerical... Jul 2024Intracranial aneurysms (IAs) pose severe health risks influenced by hemodynamics. This study focuses on the intricate characterization of hemodynamic conditions within...
Intracranial aneurysms (IAs) pose severe health risks influenced by hemodynamics. This study focuses on the intricate characterization of hemodynamic conditions within the IA walls and their influence on bleb development, aiming to enhance understanding of aneurysm stability and the risk of rupture. The methods emphasized utilizing a comprehensive dataset of 359 IAs and 213 IA blebs from 268 patients to reconstruct patient-specific vascular models, analyzing blood flow using finite element methods to solve the unsteady Navier-Stokes equations, the segmentation of aneurysm wall subregions and the hemodynamic metrics wall shear stress (WSS), its metrics, and the critical points in WSS fields were computed and analyzed across different aneurysm subregions defined by saccular, streamwise, and topographical divisions. The results revealed significant variations in these metrics, correlating distinct hemodynamic environments with wall features on the aneurysm walls, such as bleb formation. Critical findings indicated that regions with low WSS and high OSI, particularly in the body and central regions of aneurysms, are prone to conditions that promote bleb formation. Conversely, areas exposed to high WSS and positive divergence, like the aneurysm neck, inflow, and outflow regions, exhibited a different but substantial risk profile for bleb development, influenced by flow impingements and convergences. These insights highlight the complexity of aneurysm behavior, suggesting that both high and low-shear environments can contribute to aneurysm pathology through distinct mechanisms.
PubMed: 38952068
DOI: 10.1002/cnm.3844