Miguel Arrabal-Martín

Learn More
The objective of this study is to analyze the alterations in bone mineral density and bone and calcium–phosphorus metabolism in patients with calcium nephrolithiasis. We designed a study with 182 patients who were distributed among three groups: group O, 56 patients without nephrolithiasis; group A, 67 patients with calcium nephrolithiasis and mild(More)
Renal cell carcinoma is the most common form of malignant renal tumour and is extremely lethal. About 25% of the patients develop metastasis at the time of diagnosis, and in many cases during the course of the disease, affecting the lung, lymphatic ganglions, liver, and bone, with skin metastases being quite rare.A 73-year-old patient, who had undergone(More)
BACKGROUND Androgenetic alopecia (AGA) and benign prostatic hyperplasia are both androgen-dependent entities that respond to the blocking of 5-alpha-reductase. OBJECTIVES The objective of this study was to determine whether prostatic volumes and urinary flow changes were higher in patients with early-onset AGA than in healthy control subjects. METHODS(More)
Our objective was to analyze the advantages of the percutaneous nephrolithotomy in oblique supine decubitus compared to the prone and dorsal supine position. In 87 patients diagnosed with urolithiasis (495.5–530.8 mm2), percutaneous nephrolithotomy (PNL) was performed from 2000 to 2011. The patients were divided into three groups: Group A, 32 patients, PNL(More)
The aim of this study is to analyse the percentage of hypovitaminosis D, as well as its relationship with the various parameters of calcium-phosphate metabolism. A case control study was conducted on 366 patients, divided into two groups: Group 1: 127 non-stone-forming patients, and Group 2: 239 calcium stone forming. A study was performed on(More)
PURPOSE The target of our work was to study several biochemical parameters in phospho-calcic and bone metabolism in blood and urine and the bone mineral density of women with recurrent calcium nephrolithiasis. MATERIALS AND METHODS We conducted a cross-sectional study with a control group of 85 women divided into 3 groups: group 1 consisted of 25 women(More)
OBJECTIVE To analyze differences in bone remodeling markers, lithogenic factors and bone densitometry among the 3 groups of patients (controls, patients with relapsing calcium renal lithiasis, and patients with loss of bone mineral density without lithiasis). MATERIAL AND METHODS This is a cross-sectional study including 203 patients who were divided in 3(More)
UNLABELLED Different studies have shown the importance of citrate in the formation of calcium stones. It has further been shown that the states of metabolic acidosis result in an increase in bone resorption and lower urinary citrate levels. Increasing the intake of citrate in these patients can reduce the lithogenic risk and improve bone mineral density(More)
UNLABELLED What's known on the subject? and What does the study add? Hypercalciuria is related with bone mineral density loss. This study demonstrates the relationship between recurrent calcium nephrolithiasis and bone mineral density loss and their correlation with bone markers. OBJECTIVES • To show that a relationship exists between the loss of bone(More)
Osteoporosis and osteopenia are an important endocrine-metabolic disease that affect women and men from a certain age and it has a high risk and health cost. The aim of this short communication is to show that fasting calcium/creatinine ratio in patients with calcium stones is a marker of bone resorption.We studied 180 patients with renal stones with(More)