[Central hemodynamics and kidney function in women with pre-eclampsia]

Area of Science:

• Nephrology
• Obstetrics
• Nuclear Medicine

Background:

• Preeclampsia and pyelonephritis are significant complications during pregnancy.
• Understanding their impact on maternal hemodynamics and renal function is crucial.

Purpose of the Study:

• To investigate central and renal hemodynamics in pregnant women with preeclampsia and pyelonephritis using a radionuclide method.
• To assess the functional state of kidneys and blood flow patterns in these patient groups.

Main Methods:

• Utilized a radionuclide method with 99mTc-labeled human albumin and DTPA.
• Administered 0.3-0.5 ml volume with 37 MBq activity for two examinations.
• Investigated 91 pregnant women diagnosed with preeclampsia and/or pyelonephritis.

Main Results:

• Marked hypovolemia was observed in preeclampsia groups, except in those with pyelonephritis.
• Statistically significant differences in arterial pressure were noted between preeclampsia (Grade I) and pyelonephritis groups.
• Slowing of arterial and venous circulation, along with asymmetric blood flow curves and doubled renal filtration indices, were observed in preeclampsia and pyelonephritis patients.
• These renal abnormalities were more pronounced on the affected side in pyelonephritis cases.
• The radiation exposure was low (0.212 mSv), significantly less than X-ray pelvimetry.

Conclusions:

• Radionuclide assessment effectively revealed hypovolemia and impaired renal hemodynamics in pregnant women with preeclampsia and pyelonephritis.
• The findings highlight the need for careful hemodynamic monitoring and management in these high-risk pregnancies.
• The study demonstrates the safety and efficacy of the radionuclide method for evaluating renal function in pregnant patients.