Publications by authors named "R Lohan"

Article Synopsis
  • The study investigates multifocal renal capsular hemorrhage, also known as "weeping sponge kidney," focusing on its clinical features, imaging techniques, treatments, and outcomes while identifying risk factors and understanding the underlying mechanisms.
  • The case series involved four patients, all treated successfully with embolization; three had chronic renal failure and atrophy, highlighting their association with this condition.
  • The conclusion emphasizes that while small subcapsular hematomas typically resolve on their own, patients with renal failure face a higher risk of serious complications, necessitating different endovascular treatment strategies based on the number of bleeding points.
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With an intend to develop white light emitting phosphor, for w-LED application, a series of dysprosium (Dy) doped novel NaBaLaNbO phosphors were prepared using solid state reaction technique at 1300 °C. Their structural, morphological and vibrational spectroscopic analysis was performed. We illustrate the luminescence characteristics of the prepared phosphors for various Dy ion doping concentration.

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Introduction: Sarcopenia, defined as low skeletal muscle mass and poor muscle function, has been associated with worse postoperative recovery. This study aims to evaluate the significance of low muscle mass in the elderly who require emergency surgeries and the postoperative outcomes.

Method: Data from the emergency laparotomy database were retrieved from Khoo Teck Puat Hospital, Singapore, between 2016 and 2019.

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Pulmonary arteriovenous malformations (PAVMs) are uncommon, predominantly congenital direct fistulous connections between the pulmonary arteries and pulmonary veins, resulting in a right to left shunt. Patients with PAVMs are usually asymptomatic with lesions detected incidentally when radiological imaging is performed for other indications. In this review, we discuss the classification and radiological features of PAVMs as well as their treatment and follow-up options, with a particular focus on percutaneous endovascular techniques and the evolution of the available equipment for treatment.

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Focal liver lesions are commonly encountered. Grey-scale and Doppler sonographic characteristics of focal liver lesions are often non-specific and insufficient to conclusively characterise lesions as benign or malignant. Contrast-enhanced ultrasound is useful for the characterisation of FLLs in patients who are unable to undergo contrast-enhanced computed tomography or magnetic resonance imaging.

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