Publications by authors named "Arman Alimohammadi"

Article Synopsis
  • In a study of 4011 patients who had unilateral cT1a-b renal mass treated with partial nephrectomy, researchers aimed to explore how a surgeon's experience affects surgical outcomes, specifically acute kidney injury (AKI) and kidney function a year post-surgery.
  • Previously, it was known that complications and ischemia times improved with surgeon experience, but there was limited data on long-term kidney function.
  • The findings revealed no significant association between surgical experience and AKI or recovery of kidney function in either laparoscopic or robot-assisted techniques, suggesting other factors may play a more crucial role in these outcomes.
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Article Synopsis
  • Deterioration of kidney function can lead to higher mortality rates, and it's unclear how different surgical options (partial nephrectomy [PN] vs. radical nephrectomy [RN]) for large renal masses impact long-term kidney health.
  • A study analyzing data from 23 institutions showed that patients undergoing PN experienced significantly lower rates of acute kidney injury (AKI) and better recovery of kidney function at one year compared to those undergoing RN.
  • The findings suggest that avoiding RN, when possible, is beneficial for preserving kidney function and reducing the risk of serious complications related to kidney health after surgery.
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To evaluate the oncological outcomes and safety of primary retroperitoneal lymph node dissection (RPLND) in patients with clinical stage (CS) II seminomatous testicular germ cell tumor (TGCT). A literature search using PubMed, Scopus, and Cochrane Library was conducted on July 2023 to identify relevant studies according to the Preferred Reporting Items for Systematic Review and Meta Analysis (PRISMA) guidelines. The pooled recurrence rate and treatment-related complications were calculated using a random effects model.

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Context: The optimal therapeutic agent with respect to metastatic sites is unclear in advanced urothelial carcinoma (UC).

Objective: To investigate the metastatic organotropism differential treatment response in patients with advanced or metastatic UC.

Evidence Acquisition: A systematic search and network meta-analysis (NMA) was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement.

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Background: The multikinase-inhibitor Cabozantinib is a widely used treatment strategy in metastatic renal cell carcinoma (mRCC), either in combination with the programmed cell death protein-1 (PD-1) inhibitor nivolumab or as monotherapy. Cabozantinib is given continuously at a dose of 60 mg once daily when used as a single agent and at 40 mg when combined with nivolumab. Treatment-related adverse events (TRAE's) were shown to occur frequently.

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Sepsis is a life-threatening condition characterized by uncontrolled systemic inflammation and coagulation, leading to multiorgan failure. Therapeutic options to prevent sepsis-associated immunopathology remain scarce. Here, we established a mouse model of long-lasting disease tolerance during severe sepsis, manifested by diminished immunothrombosis and organ damage in spite of a high pathogen burden.

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Introduction: Therapies combining either two immune check-point inhibitors (ICIs) or an ICI and a tyrosine kinase inhibitor (TKI) have been shown to improve overall survival (OS), progression-free survival (PFS) and objective response rates (ORR) in metastatic renal cell carcinoma (mRCC); moreover, unprecedented rates of complete remission (CR) have been reported.

Areas Covered: Among six randomized trials of ICI combinations, four have outperformed the TKI sunitinib in terms of OS. The CheckMate 214 trial investigated the combination of nivolumab (a programmed cell death protein 1 [PD-1] inhibitor) and ipilimumab (a cytotoxic T-lymphocyte antigen-4 [CTLA-4)] inhibitor).

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Acute pulmonary embolism generally resolves within 6 months. However, if the thrombus is infected, venous thrombi transform into fibrotic vascular obstructions leading to chronic deep vein thrombosis and/or chronic thromboembolic pulmonary hypertension (CTEPH), but precise mechanisms remain unclear. Neutrophils are crucial in sequestering pathogens; therefore, we investigated the role of neutrophil extracellular traps (NETs) in chronic thrombosis.

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Pulmonary arterial hypertension is a severe and progressive disease characterized by a pulmonary vascular remodeling process with expansion of collateral endothelial cells and total vessel occlusion. Endothelial cells are believed to be at the forefront of the disease process. Vascular endothelial growth factor (VEGF) and its tyrosine kinase receptor, VEGF receptor-2 (VEGFR-2), play a central role in angiogenesis, endothelial cell protection, but also in the destabilization of endothelial barrier function.

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Background: Premature acute myocardial infarction (AMI) is a rare disease carrying significant morbidity and mortality. Existing data on outcome in these patients is based on retrospective analysis of angiographic reports or refer to time periods with incomparable treatment regimes, making them unusable for risk assessment in times of widespread use of reperfusion therapy. Aim of this study was to assess the outcome of premature AMI in a prospectively recruited study population enrolled in the times of modern reperfusion therapy.

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Background: Circulating proprotein convertase subtilisin/kexin type 9 (PCSK9) enzyme might be associated with increased activation of platelets. We aimed to assess the relationship between PCSK9 levels, platelet reactivity and ischemic outcomes.

Methods: Consecutive ACS patients receiving prasugrel or ticagrelor and undergoing percutaneous coronary intervention (PCI) were enrolled in a prospective, observational study.

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Background: Inflammatory responses are pivotal in the initiation and development of premature atherosclerotic lesions. Galectin-3 represents a valuable biomarker for both progression and destabilization of atherosclerotic lesions. This study aims to assess the involvement of galectin-3 in premature myocardial infarction.

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Background: Splenectomy is a clinical risk factor for complicated thrombosis. We hypothesized that the loss of the mechanical filtering function of the spleen may enrich for thrombogenic phospholipids in the circulation, thereby affecting the vascular remodeling of thrombosis.

Methods And Results: We investigated the effects of splenectomy both in chronic thromboembolic pulmonary hypertension (CTEPH), a human model disease for thrombus nonresolution, and in a mouse model of stagnant flow venous thrombosis mimicking deep vein thrombosis.

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Objective: Restoration of patency is a natural target of vascular remodeling after venous thrombosis that involves vascular endothelial cells and smooth muscle cells, as well as leukocytes. Acute pulmonary emboli usually resolve <6 months. However, in some instances, thrombi transform into fibrous vascular obstructions, resulting in occlusion of the deep veins, or in chronic thromboembolic pulmonary hypertension (CTEPH).

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Objective: To evaluate the prognostic and predictive relevance of pretreatment serum C-reactive protein (CRP) in malignant pleural mesothelioma (MPM) patients.

Background: MPM is a rare but aggressive disease with poor treatment outcome. Therapeutic decision is challenging, and predictive biomarkers for better treatment stratification are urgently needed.

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