Multiple linear regression model for predicting functional recovery in obstructive uropathy due to stones

نویسندگان

  • Yuchao Lu
  • Henglong Hu
  • Baolong Qin
  • Deng He
  • Jiaqiao Zhang
  • Yufeng Wang
  • Qing Wang
  • Shaogang Wang
  • Jihong Liu
چکیده

This study aimed to develop a mathematical model for predicting recovery potential of an obstructed kidney with poor function by a noninvasive method. We analyzed a cohort study of 93 patients who suffered from unilateral renal or ureteral stones with hydronephrosis and renography showing an ipsilateral glomerular filtration rate (GFR) <15 ml/min. We recorded clinical parameters, including age, sex, body mass index, residual renal volume (RRV), unilateral GFR, and split renal function (SRF) before percutaneous nephrostomy (PCN). After 38.16±5.87 days of drainage. Renal function was re-evaluated by renography. Almost all of the kidneys showed changes in GFR and SRF. Univariate and multivariate analysis showed that the patient’s age, RRV, pre-GFR, and pre-SRF were significant factors associated with recoverability of renal function. A multiple linear regression model was developed to predict the recovery potential of the obstructed kidney.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Diagnostic value of diuretic renography in the study of obstructive uropathy in nuclear medicine [Persian]

  Introduction: Urinary obstructive disease is one of the most common disorders in urinary system. Dilatation which is detected by sonography, is a key finding in obstruction in most of the cases, also could be found following surgery, lithotripsy and vesico–urethral reflux. Radioistope diuretic washout renography is a useful method to differentiate mechanical and non...

متن کامل

EVALUATION OF CONCRETE COMPRESSIVE STRENGTH USING ARTIFICIAL NEURAL NETWORK AND MULTIPLE LINEAR REGRESSION MODELS

In the present study, two different data-driven models, artificial neural network (ANN) and multiple linear regression (MLR) models, have been developed to predict the 28 days compressive strength of concrete. Seven different parameters namely 3/4 mm sand, 3/8 mm sand, cement content, gravel, maximums size of aggregate, fineness modulus, and water-cement ratio were considered as input variables...

متن کامل

Conservative Management of Obstructive Uropathy Secondary to Stones

Obstructive uropathy is defined as structural obstruction to urine flow along the urinary tract. It can lead to dilatation of renal pelvis and calyces. (1). However renal pelvis can be dilated without obstruction. Therefore hydronephrosis and dilated renal pelvis are not synonymous terms. The damage to renal tissue caused by these conditions often leads to obstructive nephropathy contributing t...

متن کامل

The optimized model of factors effecting on the Merger and Acquisition from multiple dimensions with neural network approach.

Nowadays, firms apply the merger and acquisition strategy for gaining synergy, increasing the wealth of stockholders, economics of scales, enhancing efficiency, increasing the ability to research and develop, developing the firm and decreasing the risk. Developing an optimized model with the ability to identify the effective variables on the merger and acquisition process has a significant ...

متن کامل

Obstructive uropathy due to extramedullary haematopoiesis in beta thalassaemia/haemoglobin E.

An 18 year old woman with beta thalassaemia/haemoglobin E developed a large pelvic tumour resulting in bilateral obstructive uropathy. Technetium-99m sulphur colloid marrow image, computed tomographic scan of the abdomen and needle biopsy of the mass confirmed the diagnosis of extramedullary haematopoiesis. Although radiation is the treatment of choice for decompression, the mass in this patien...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2016