It is known that an increase in intra-abdominal pressure (IAP) causes a decrease in the volume of cerebrospinal fluid in the lumbar and lower thoracic region, which may contribute to the development of more high spinal block.
There is a hypothesis, the higher the level of intra-abdominal pressure, the greater the likelihood of developing a high-level (=\>Th4) sensor block.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
PREVENTION
Masking
NONE
Enrollment
196
The level of intra-abdominal pressure was measured via a Foley catheter through the urinary bladder. After the introduction of a 30 mL of warm saline. Measurement of the water column in the system was made from the zero level to the mid-axillary line, for 10 minutes, after quiet breathing pregnant at the time of expiration.
Tver Regional Perinatal Center
Tver', Russia
The Level of Intra-abdominal Pressure (IAP)
Measurement of IAP: The level of intra-abdominal pressure was measured via a Foley catheter through the urinary bladder. After the introduction of a 30 mL of warm saline. Measurement of the water column in the system was made from the zero level to the mid-axillary line, after quiet breathing pregnant at the time of expiration. The data obtained are in inches of water column were translated in millimeters of mercury.
Time frame: Before spinal anesthesia, average 10 minutes.
Classification Grade of Intra-abdominal Hypertension (IAH)
Average IAP in pregnant women with different Grade of intra-abdominal hypertension Physiological norm (≤11,99 mm Hg) Grade I (12 - 15.99 mm Hg) Grade II (16 - 20.99 mm Hg) Grade III (21 - 25.99 mm Hg)
Time frame: Before spinal anesthesia, average 10 minutes.
Obesity and IAP
Effect of obesity on the level of IAP
Time frame: Before spinal anesthesia, average 10 minutes.
Level of Sensory Blocks
Block level of thoracic vertebrae are reported for pregnant women who had level of sensory block higher than 4 thoracic vertebra and less than 5 thoracic vertebra
Time frame: After spinal anesthesia, average 20 minutes.
The Level of IAP
The level of IAP in obstetric patients in the groups with high ( =\> Th4) and low (\< = Th5) blocks
Time frame: After spinal anesthesia, average 20 minutes.
Number of Pregnants With Blocks = > Th4 With IAP Higher or Less Than 16 mm Hg
Time frame: After spinal anesthesia, average 20 minutes.
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