Limits...
Continuous non-invasive arterial pressure technique improves patient monitoring during interventional endoscopy.

Siebig S, Rockmann F, Sabel K, Zuber-Jerger I, Dierkes C, Brünnler T, Wrede CE - Int J Med Sci (2009)

Bottom Line: Based on the first NIBP value in an interval between two NIBP measurements, BP values determined by CNAP showed a maximum increase of 30.8+/-21.7% and a maximum decrease of 22.4+/-28.3% (mean of all intervals).Conventional intermittent blood pressure monitoring of patients receiving sedating agents failed to detect fast changes in BP.The new technique CNAP improved the detection of rapid BP changes, and may contribute to a better patient safety for those undergoing interventional procedures.

View Article: PubMed Central - PubMed

Affiliation: Department of Internal Medicine I, University of Regensburg, Regensburg, Germany. Sylvia.siebig@klinik.uni-r.de

ABSTRACT

Introduction: Close monitoring of arterial blood pressure (BP) is a central part of cardiovascular surveillance of patients at risk for hypotension. Therefore, patients undergoing diagnostic and therapeutic procedures with the use of sedating agents are monitored by discontinuous non-invasive BP measurement (NIBP). Continuous non-invasive BP monitoring based on vascular unloading technique (CNAP, CN Systems, Graz) may improve patient safety in those settings. We investigated if this new technique improved monitoring of patients undergoing interventional endoscopy.

Methods: 40 patients undergoing interventional endoscopy between April and December 2007 were prospectively studied with CNAP(R) in addition to standard monitoring (NIBP, ECG and oxygen saturation). All monitoring values were extracted from the surveillance network at one-second intervals, and clinical parameters were documented. The variance of CNAP values were calculated for every interval between two NIBP measurements.

Results: 2660 minutes of monitoring were recorded (mean 60.1+/-34.4 min/patient). All patients were analgosedated with midazolam and pethidine, and 24/40 had propofol infusion (mean 90.9+/-70.3 mg). The mean arterial pressure for CNAP was 102.4+/-21.2 mmHg and 106.8+/-24.8 mmHg for NIBP. Based on the first NIBP value in an interval between two NIBP measurements, BP values determined by CNAP showed a maximum increase of 30.8+/-21.7% and a maximum decrease of 22.4+/-28.3% (mean of all intervals).

Discussion: Conventional intermittent blood pressure monitoring of patients receiving sedating agents failed to detect fast changes in BP. The new technique CNAP improved the detection of rapid BP changes, and may contribute to a better patient safety for those undergoing interventional procedures.

Show MeSH
The variance of CNAP® values for every NIBP interval based on the first NIBP value
© Copyright Policy
Related In: Results  -  Collection


getmorefigures.php?uid=PMC2631161&req=5

Figure 2: The variance of CNAP® values for every NIBP interval based on the first NIBP value

Mentions: In order to determine blood pressure changes undetected by conventional NIBP surveillance, NIBP intervals were defined as the time space between two adjacent NIBP measurements, and the CNAP readings within these intervals were analyzed (figure 2). In total, 254 NIBP intervals were calculated with a mean length of 7.5±4.6 minutes.


Continuous non-invasive arterial pressure technique improves patient monitoring during interventional endoscopy.

Siebig S, Rockmann F, Sabel K, Zuber-Jerger I, Dierkes C, Brünnler T, Wrede CE - Int J Med Sci (2009)

The variance of CNAP® values for every NIBP interval based on the first NIBP value
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC2631161&req=5

Figure 2: The variance of CNAP® values for every NIBP interval based on the first NIBP value
Mentions: In order to determine blood pressure changes undetected by conventional NIBP surveillance, NIBP intervals were defined as the time space between two adjacent NIBP measurements, and the CNAP readings within these intervals were analyzed (figure 2). In total, 254 NIBP intervals were calculated with a mean length of 7.5±4.6 minutes.

Bottom Line: Based on the first NIBP value in an interval between two NIBP measurements, BP values determined by CNAP showed a maximum increase of 30.8+/-21.7% and a maximum decrease of 22.4+/-28.3% (mean of all intervals).Conventional intermittent blood pressure monitoring of patients receiving sedating agents failed to detect fast changes in BP.The new technique CNAP improved the detection of rapid BP changes, and may contribute to a better patient safety for those undergoing interventional procedures.

View Article: PubMed Central - PubMed

Affiliation: Department of Internal Medicine I, University of Regensburg, Regensburg, Germany. Sylvia.siebig@klinik.uni-r.de

ABSTRACT

Introduction: Close monitoring of arterial blood pressure (BP) is a central part of cardiovascular surveillance of patients at risk for hypotension. Therefore, patients undergoing diagnostic and therapeutic procedures with the use of sedating agents are monitored by discontinuous non-invasive BP measurement (NIBP). Continuous non-invasive BP monitoring based on vascular unloading technique (CNAP, CN Systems, Graz) may improve patient safety in those settings. We investigated if this new technique improved monitoring of patients undergoing interventional endoscopy.

Methods: 40 patients undergoing interventional endoscopy between April and December 2007 were prospectively studied with CNAP(R) in addition to standard monitoring (NIBP, ECG and oxygen saturation). All monitoring values were extracted from the surveillance network at one-second intervals, and clinical parameters were documented. The variance of CNAP values were calculated for every interval between two NIBP measurements.

Results: 2660 minutes of monitoring were recorded (mean 60.1+/-34.4 min/patient). All patients were analgosedated with midazolam and pethidine, and 24/40 had propofol infusion (mean 90.9+/-70.3 mg). The mean arterial pressure for CNAP was 102.4+/-21.2 mmHg and 106.8+/-24.8 mmHg for NIBP. Based on the first NIBP value in an interval between two NIBP measurements, BP values determined by CNAP showed a maximum increase of 30.8+/-21.7% and a maximum decrease of 22.4+/-28.3% (mean of all intervals).

Discussion: Conventional intermittent blood pressure monitoring of patients receiving sedating agents failed to detect fast changes in BP. The new technique CNAP improved the detection of rapid BP changes, and may contribute to a better patient safety for those undergoing interventional procedures.

Show MeSH