Comparisson of blood pressure measured from Noninvasive/Automated (NIBP} technique and Manual technique (Sphygmomanometer) with direct invasive blood pressure (Arterial Line) measurement technique in patient undergoing neurosurgery.

Completed

• Conditions: Neurosurgical patients come for Aneurysm and Arterio-venous malformation Surgery

• Registration Number: CTRI/2017/11/010641
• Lead Sponsor: Dr Mohit Katare

Brief Summary

This is prospective observational study in patients undergoing neurosurgical procedure requiring intraoperative blood pressure manipulation between 2014 and 2016 in neurosurgery operation theatre of LTGM Hospital and Medical college, Sion, Mumbai. During study we compared readings of three blood pressure measuring technique namely Invasive direct arterial blood pressure , non invasive oscillometric blood pressure and auscultatory manual blood pressure at different ranges of blood pressures during intraoperative blood pressure manipulation and  establish correlation between these techniques with reliability and accuracy of non invasive blood pressure measuring techniques (oscillometric and auscultatory) considering invasive arterial line as gold standard for blood pressure measurement.

We find that both the. Non invasive blood pressure measurement techniques tend to systolic blood pressure measurement, the difference was -9 to +21 mm Hg for oscillometric technique and -10 to + 20 mm Hg by auscultatory technique.

Systolic blood pressure at range of 100 to 140 mm Hg both the non invasive techniques are found to be reliable. While at blood pressure above 140 mm Hg both non invasive techniques tend to underestimate systolic pressure reading in which oscillometric by 9 +/- 1.9 mm Hg and auscultatory by 8.58 +/- 0.36 mm Hg which is found to be statistically significant, when we further analyses blood pressure readings below 90 mm Hg. Oscillometric but not auscultatory tended to overestimated systolic pressure reading by 5.7 +/- 3.17 mm Hg.

On analysing diastolic blood pressure both the non-invasive techniques tended to overestimate diastolic pressure, oscillometric by 6.42 +/- 7.60 mm Hg and auscultatory by 6.54 +/- 7.52 mm Hg.

Mean blood pressure readings were found to be reliable with non-invasive technique.

Detailed Description

Not available

Study Timeline

• Study Start: 2015-01-02
• Study Completion: 2016-01-07
• Last Update Posted: 2017-11-24

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

• Patients Undergoing Neurosurgical Procedures requiring blood pressure manipulations under anaesthesia.
• patients subjected to radial artery cannulation.

Exclusion Criteria

• 1.Severely hemodynamic compromised patients.
• 2.Patients with Arrhythmias.
• 3.Patents in which there is inability to take Radial Artery Cannulation.
• 4.Any Contraindications to Cuff application or inflation.
• 5.Pregnant Females.
• 6.Difference of more than 10 mm of hg blood pressure in both the arms 7.Different surgical positions other than supine.

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Non invasive blood pressure monitoring is not reliable alternative to invasive arterial blood pressure monitoring during intraoperative blood pressure manipulation.	Outcome will be assessed after collection of data from all the 40 patients within period of 18 months.

Secondary Outcome Measures

Name	Time	Method
Non invasive blood pressure measuring technique tend to underestimate hypotension and overestimate hypertension	Outcome will be assessed after collection of data from all the 40 samples within 18 month period.

Trial Locations

Locations (1)

LTMMC &GH Sion, Mumbai; 🇮🇳 Mumbai, MAHARASHTRA, India

LTMMC &GH Sion, Mumbai

🇮🇳Mumbai, MAHARASHTRA, India

Dr Hemangi Karnik

Principal investigator

9167017002

dr_hemangi@hotmail.com