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Hypertension and nephrology

MAY 20, 2012

[Too early publication? (priority of the Hungarian authors was saved by a South- American radiologist)]

RADÓ János

[It is supposed that the invention of diuretic (furosemide) renography was a premature discovery. This is suggested by the fact that it was rediscovered by more than one people. Author supported this contention by a statistical analysis of „citation intervals” performed on the basis of Garfield’s suggestions. The length of the time from the description of the procedure to the appearance of citations („citation interval”) proved to be an average of 21.3±9.6 (SD) years, significantly longer than in the case of the author’s five important other recognitions combined, where the average citation interval was 8.7±7.4 (SD) years (p<0.01). Camargo a South-American radiologist who first confirmed the original study, was later just in time the editor of a North American journal to save the priority of the original inventor Hungarian authors. In medical science the investigators take the risks in the interest of the patients including „publishing too early”.]

Hypertension and nephrology

JUNE 10, 2011

[My teacher, Pál Gömöri (1905-1973)]

RADÓ János

[Great Hungarian physicians have contributed a lot to the development of international medical science. Pál Gömöri was one of them. It is impossible to list the versatility of his scientific interests, but one of his ambitions was the introduction of the investigational methods of renal nuclear medicine to Hungary. The author’s feeling is that his own activity in renal nuclear medicine concerning “diuretic renography” was inspired partly by the information which was learned from Gömöri. The scientific results produced by Gömöri will be preserved in the libraries and on the internet. The spirit of his medical teaching, however, must be passed over by his students and followers, to provide his remembrance to fade as late as possible ]

Hungarian Radiology

AUGUST 20, 2003

[Follow-up of infants undergoing pyeloplasty: renal ultrasound and diuresis renography changes]

KIS Éva, NYITRAI Anna, VÁRKONYI Ildikó, BÁRTFAI Katalin, GYÖRKE Tamás, MÁTTYUS István, VEREBÉLY Tibor

[INTRODUCTION - The authors reviewed their experience after pyeloplasty in infants, according to the follow-up results of ultrasound and nuclear renography. PATIENTS AND METHODS - During the period 1988-2001 184 infants underwent pyeloplasty for ureteropelvic junction (UPJ) obstruction. Patients (n=91) with unilateral UPJ obstruction and normal contralateral kidney were included in this study. Patients ages at surgery were between 1 day-36 months. Preoperative evaluation included ultrasound examinations and diuretic renograms. Follow-up ultrasound examinations were done after 3, 6, 12 months, later yearly. Depending on the result of the ultrasound examination isotope scan were done. RESULTS - The pelviureteric obstruction were detected prenatally at 65 cases (71%). Preoperative ultrasound revealed grade 3-4 pyelocaliectasis in all patients. All patients had obstruction on preoperative renography, nine kidneys had no function, in 37 cases (41%) hydronephrotic kidneys had diminished function. Nine patients underwent nephrectomy because of non-functioning kidney. Eighty two infants underwent pyeloplasty. Grade of hydronephrosis improved in 56% of kidneys and dilatation was the same one year after pyeloplasty in 44% of kidneys. Five years after pyeloplasty 91% of kidneys, after eight years 97% of hydronephrosis improved or cured. Postoperative renography showed improvement in drainage in all preoperatively obstructed kidneys. The renal function improved only in 22% of cases at the end of the first postoperative year, and no further improvement were detected later on. CONCLUSION - Pyeloplasty in infant ages significantly cured the drainage early after surgery. The resolution of hydronephrosis is relatively slow, but after eight years dilatation cured or improved in most of the affected kidneys. Improvement of the renal function was detected only in small part of the cases.]