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David A Bloom

Publications and source records attributed to David A Bloom.

42 records · Page 3Linked to original sources

Wolff and Müller: fundamental eponyms of embryology, nephrology and urology.

PURPOSE: Kaspar Friedrich Wolff and Johannes Petrus Müller, German physicians in the 18th and 19th centuries, respectively, contributed significantly to the study of the biological sciences, specifically embryology and the development of the genitourinary tract. Their eponyms are a part of daily conversation in medical education, practice and research. We reviewed their lives and works. MATERIALS AND METHODS: Commentaries on the works of these scientists as well as available English translations of their works were analyzed. RESULTS: Wolff and Müller were pioneers in their fields. Wolff gained renown for his Theoria Generatonis, a great embryological treatise, produced in 1759. Müller performed significant studies in the fields of anatomy, pathology, physiology and embryology. In 1834 he became editor of the physiology journal that later came to be known as Müller's Archiv. CONCLUSIONS: Studies of and inferences about the development of the urogenital system a century apart by these 2 men contributed greatly to the current understanding of embryology. Their names remain a part of everyday medical dialogue.

Embryology↗

Ureteroscopy for the treatment of urolithiasis in children.

PURPOSE: Ureteroscopy for treating urolithiasis in prepubertal children has become more common with the advent of smaller instruments. We reviewed our experience with ureteroscopy for urolithiasis in this cohort of patients as well as the literature using this treatment modality in children. MATERIALS AND METHODS: Between 1994 and 2000 we performed 27 ureteroscopic stone extractions in 25 children. Ureteroscopy was done in a manner similar to that in adults. Ureteral dilation was performed when necessary to access the ureter. A stent was placed postoperatively if there was significant ureteral trauma. RESULTS: Of the 25 children 13 were male and 12 were female. Average age was 9.2 years (range 3 to 14). Stones were 2 to 12 mm. in greatest diameter (average 6). Of the 27 procedures the ureteral orifice was dilated before stone treatment in 15 (56%), while in 19 (70%) a stent was placed afterward. No intraoperative and 2 postoperative complications were identified. Overall 92% of the children were rendered stone-free after 1 procedure and 100% were stone-free after 2. CONCLUSIONS: Ureteroscopy for urolithiasis in prepubertal children is safe and effective. Routine ureteral dilation and ureteral stent placement are not always necessary in these patients.

Child↗

The high-resolution chest CT findings in an adult with Melnick-Needles syndrome.

Melnick-Needles syndrome is an X-linked dominant skeletal dysplasia in which patients often succumb at an early age to chronic pulmonary disease. Radiographic findings of Melnick-Needles syndrome consist of characteristic bony abnormalities and interstitial lung disease. We present the high-resolution computed tomographic (CT) findings in a 39-year-old survivor of Melnick-Needles syndrome. The clinical and physical exam findings also demonstrate an association between Melnick-Needles syndrome and obstructive sleep apnea.

Adult↗