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Biomedical subjects

J Reznícek

Publications and source records attributed to J Reznícek.

At least 19 recordsLinked to original sources

[Vitamin B12 and folic acid in chronic kidney failure and after kidney transplantation].

Vitamin B12 in plasma, folic acid in plasma and erythrocytes were examined in 11 patients in the polyuric stage of chronic renal failure without dialyzation treatment, in 38 patients included in a long-term dialyzation programme before and after 3 months' oral administration of folic acid--(2 X 5 mg week)--and in 23 patients after transplantation of the kidneys. In none of the examined groups vitamin B12) and folic acid deficiency in plasma was detected. A reduced folic acid level in erythrocytes, but still in the reference range, was found in patients in the long-term dialyzation programme without supplementation. Supplementation with folic acid increased its concentration in plasma 4.5 times and in red cells 5.5 times. Haemodialysis did not influence the concentration of the examined indicators in plasma and red cells. According to the recorded results it is not necessary to supplement patients in long-term dialyzation programme and after renal transplantation with vitamin B12 and folic acid, if their dietary protein intake is not restricted.

Female

[Transurethral invaginating ureterectomy].

The principle of transurethral invagination ureterectomy is in the invagination of the stump of the ureter its retraction into the urinary bladder and resection of the levels of the mucosa of the urinary bladder. The authors describe the surgical procedure and experience with the treatment of seven patients.

Aged

[Antegrade pyeloureterography in the transplanted kidney].

Antegrade pyeloureterography performed via fine puncture needle yields detailed imaging of the anatomy of the renal pelvis, calices, and ureter of the transplanted kidney. It is a simple and safe examination method providing information which, as a rule, can not be obtained by urography, radioisotope gammagraphy or ultrasonography. Puncture of the collecting system of the transplanted kidney with subsequent pyeloureterography is indicated for determining the site and nature of the obstruction in the ureter in urinary stasis in the transplanted kidney, for diagnosing urinary fistulas, for functional examination of the dilated upper urinary tract, as well as for percutaneous treatment of urological complications after kidney transplantation.

Humans

Dynamics of serum minerals changes after renal transplantation.

In 27 patients surviving with transplanted cadaver kidneys for 12-107 months, calcium, phosphorus, magnesium and creatinine serum levels, glomerular filtration rate and incidence of serum mineral levels pathological deviations following renal transplantation were evaluated. In early posttransplantation period hypercalcemia and hypomagnesemia developed in one fourth of the observed group of patients and hypophosphatemia in two thirds of patients. Expressive hypermagnesemia developed in one patient. Calcium and phosphorus levels gradually normalized, excluding rare exceptions; magnesium serum level exceeded an upper limit of normal values in majority of patients, nor to medicamentous treatment was stated.

Adult

Transplantation of pediatric kidneys into adult patients.

The authors are dealing with the problems of transplantation of pediatric kidneys into adult recipients. Kidneys obtained from children who died 1-3 year old can be both transplanted into one adult recipient. The authors used this method in transplantation of kidneys from 2 - year old donor into adult recipient.

Adult

Operations in patients treated by regular haemodialysis.

Patients with chronic renal insufficiency treated by regular dialysis tolerate well surgical interventions provided they are appropriately prepared for the operation. It is first of all the management of symptoms of the uraemic syndrome by an effective dialysis, the follow-up during the operation and in the immediate postoperative period. On the basis of experience with 31 regularly dialysed patients, the authors have set their criteria for a total anaesthesia. Also the risks and the most frequent complications occurring during and after the operation are pointed out.

Adolescent

The ureter in renal transplantation.

The outcome of kidney transplantation depends on several factors. The quality of the ureter of the transplanted kidney and the technique of its connection with the recipient's urinary tract seem to be two of the most important ones. In this paper the authors analyse the incidence of ureteral complications of the grafted kidney in 99 ureterocystoneostomies performed in conjunction with kidney transplantation. Urinary fistulas occurred in 7, stenosis of the ureter in 3 cases. The diagnostic possibilities and treatment of the complications are discussed.

Constriction, Pathologic