Objective. Treatment options for urolithiasis in children include URSL and RIRS. Various types of energy are used in the disintegration of deposits in these procedures. We decided to evaluate the usefulness of URSL and RIRS techniques and compare the effectiveness of pneumatic lithotripters and holmium lasers in the child population based on our experience. Materials and Methods. One hundred ei...

BACKGROUND Limited treatment options exist for patients with locoregional recurrences of head and neck squamous cell carcinoma (HNSCC). In the palliative setting, a single session, minimally invasive, and relatively safe therapy is desirable. This case series illustrates the feasibility of a direct intratumoral injection of radioactive holmium-166 microspheres (HoMS) in patients as a palliative...

Objective Five to ten percent of interstitial cystitis/bladder pain syndrome (IC/BPS) patients have Hunner's lesions (HL), areas of non-specific inflammation and scarring. The poor quality of life of patients with HL is entwined in associated pain and loss of bladder capacity. Although the decrease in bladder capacity is usually dependent on pain, it may also be dependent upon scarring and asso...

BENIGN PROSTATIC HYPERPLASIA (BPH) affects 70% of men over age 70 and is a significant cause of morbid. ity in this population.1 Endoscopic surgery for BPH has evolved over the past decade with technological advances that offer significant advantages in perioperative and postoperative morbidity and hospital stay. One of the technological advances has been the holmium laser, a multifunction tool...

We demonstrate the first gain-switched, singly doped, single-mode holmium-doped silicate glass fibre laser that operates at 2.106 microm. Using a gain-switched 1.909-microm thulium-doped fibre laser as the pump source, output pulses of energy 3.2 microJ and pulse duration of 150 ns were generated at 80 kHz and slope efficiency of 44%. Pulse stacking within the holmium-doped fibre laser resulted...

A well crystallized powder sample of sodium holmium orthosilicate oxyapatite, Na(2.27)Ho(7.73)(SiO(4))(6)O(0.72), was obtained after mechanical milling and thermal treatment at 1123 K. Crystal structure analysis was performed from the results of Rietveld refinement of the synchrotron diffraction data. As in other rare-earth orthosilicate apatites, sodium cations appear located sharing with holm...

Single crystals of {FeHo(6)}I(12)Ho were obtained during the reaction of HoI(3) with metallic holmium and iron in a sealed tantalum container. The crystal structure consists of isolated holmium clusters encapsulating a single Fe atom, {FeHo(6)} ( symmetry). The rare earth metal atoms are surrounded by 12 edge-capping and six terminal iodide ligands that either connect the clusters to each other...

Accepted: November 28, 1984 The work describes the methods and procedures used to determine the wavelengths of minimum transmittance of holmium oxide in perchloric acid solution. Measurements of spectral transmittance of the solutions were made by means of a high precision spectrophotometer over the wavelength range 200 nm to 680 nm. The wavelength scale accuracy of this instrument was verified...

The results of studying the effect central metal ion on stability gadolinium and holmium complexes with 1,10'-phenanthroline-2,9-dicarboxylic acid diamide are presented. obtained values constants turned out to be an order magnitude lower than previously known for these elements 4,7-dichloro-1,10'-phenanthroline-2,9-dicarboxylic diamide. Keywords: spectrophotometry, gadolinium, holmium, contrast...