Journal of Clinical Monitoring and Computing

Items from 1 to 9 out of 9 results

article

Multi-Channel Electrical Bioimpedance: A New Noninvasive Method To Simultaneously Measure Cardiac And Peripheral Blood Flow

Alfred W. H. Stanley, Jeffery W. Herald, Constantine L. Athanasuleas, Saji C. Jacob, more

Journal of Clinical Monitoring and Computing > 2007 > 21 > 6 > 345-351

Objectives We sought to assess the ability of a new multi-channel electrical bioimpedance (MEB) methodology to accurately measure both cardiac blood flow and peripheral limb blood flow. Background Cardiac output is the primary determinant of peripheral blood flow; however, optimal regional tissue perfusion is ultimately dependent on the patency of the arterial conduits that transport that flow....

article

Effects of tissue outside of arterial blood vessels in pulse oximetry: a model of two-dimensional pulsation

Shao Yang, Paul B. Batchelder, Dena M. Raley

Journal of Clinical Monitoring and Computing > 2007 > 21 > 6 > 373-379

We describe a new model of pulse oximetry that addresses the disagreement between theoretical calibration curves based on Beer–Lambert’s Law and test results based on human test subjects. Sources of this discrepancy include variability among human subjects, experimental conditions and the effect of optical radiation propagating in tissue surrounding arteries. Unlike the conventional model, our model...

article

Pre-ejection period, contractility and preload. a fascinating riddle

Karim Bendjelid

Journal of Clinical Monitoring and Computing > 2007 > 21 > 6 > 387-387

Bendjelid K. Pre-ejection period, contractility and preload. A fascinating riddle.

article

Using Bland−Altman to Assess Agreement between Two Medical Devices – Don’t Forget the Confidence Intervals!

Cody Hamilton, James Stamey

Journal of Clinical Monitoring and Computing > 2007 > 21 > 6 > 331-333

The limits of agreement approach of Bland and Altman is by far the most popular method for investigating statistical agreement between two measurement devices. This work presents the dangers of relying exclusively on the limits of agreement alone and argues that authors should always provide confidence intervals to assess the variability in the estimated limits.

article

The relationship between the photoplethysmographic waveform and systemic vascular resistance

Aymen A. Awad, Ala S. Haddadin, Hossam Tantawy, Tarek M. Badr, more

Journal of Clinical Monitoring and Computing > 2007 > 21 > 6 > 365-372

Objective The objective of this study was to determine the relationship between systemic vascular resistance (SVR), finger & ear photoplethysmographic measurements in 14 adult patients undergoing coronary artery bypass grafting (CABG). Methods Patients were monitored with photoplethysmographs of the finger and ear and continuous cardiac output (Q_T) via thermodilution catheter. The relationship...

article

A system of classification for the clinical applications of capnography

Naveen Eipe, Jordan Tarshis

Journal of Clinical Monitoring and Computing > 2007 > 21 > 6 > 341-344

We have attempted to list all the clinical applications of capnography described to date and classify them into categories. From an extensive Pubmed search 46 clinical applications of capnography were listed. To classify these we used six categories- Airway, Breathing, Circulation, Anesthetic Delivery Apparatus, Homeostasis and Non-perioperative. This list collates the described uses of capnography...

article

Influence of Intermittent Pneumatic Compression Devices on Non-Invasive Blood Pressure Measurement of the Ankle

Bijal R. Parikh, Abraham M. Simon, John N. Kouvaras, Robert B. Ciolino, more

Journal of Clinical Monitoring and Computing > 2007 > 21 > 6 > 381-386

Background It is rapidly becoming the standard of care to employ the perioperative use of intermittent pneumatic compression (IPC) devices on the lower leg to prevent the development of deep venous thrombosis. There are instances when the anesthesiologist must apply a blood pressure cuff to the ankle in order to obtain a blood pressure reading. The purpose of this study is to determine the influence...

article

A New Paradigm for the Design of Audible Alarms that Convey Urgency Information

Richard R. McNeer, Jorge Bohórquez, Özcan Özdamar, Albert J. Varon, more

Journal of Clinical Monitoring and Computing > 2007 > 21 > 6 > 353-363

Objective The current international standard (IEC 60601-1-8) stipulates that medical device audible alarms should be priority-encoded and validated for efficacy. Evidence suggests that the melodic alarms described in the standard are not functioning as originally intended. We present a multi-disciplinary, human factors paradigm for audible alarm development whereby urgency information is encoded via...

article

Effects of vasodilation on cardiac output measured by PulseCO™

Koichi Yamashita, Tomoki Nishiyama, Takeshi Yokoyama, Hidehiro Abe, more

Journal of Clinical Monitoring and Computing > 2007 > 21 > 6 > 335-339

Backgrounds The instability of cardiac output (CO) measured by PulseCO™ (LiDCO Ltd.) during cardiac surgery has been reported. In the present study, we investigated the effects of vasodilation by prostaglandin E1 (PGE1) on the relation between cardiac output measured by PulseCO™ and that by thermodilution. Methods Twenty patients who underwent off-pump coronary artery bypass grafting (OPCAB) were...

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6
Volume:
21
Year:
2007

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Keywords

ALARM SOUNDS (1)
ALARMS (1)
ANESTHESIA EDUCATION AND SIMULATION (1)
ANESTHESIA MONITORING (1)
BIOIMPEDANCE (1)
BLAND–ALTMAN (1)
BLOOD OXYGEN (1)
BLOOD PRESSURE CUFF (1)
CARDIAC OUTPUT (1)
HUMAN FACTORS (1)
INTERMITTENT PNEUMATIC COMPRESSION DEVICE (1)
IPC DEVICE (1)
LIMITS OF AGREEMENT (1)
MEDICAL DEVICE (1)
MEDICAL MONITORING (1)
MONITORING-CAPNOGRAPHY (1)
MULTI-CHANNEL ELECTRICAL BIOIMPEDANCE (1)
NON-INVASIVE MONITORING (1)
NONINVASIVE CARDIAC OUTPUT (1)
NONINVASIVE MEASUREMENT OF FLOW (1)
PHOTOPLETHYSMOGRAPH (1)
PROSTAGLANDIN E1 (1)
PULSE CONTOUR METHOD (1)
PULSE OXIMETERS (1)
PULSE OXIMETRY (1)
REVIEW OF LITERATURE-CLINICAL APPLICATIONS OF CAPNOGRAPHY (1)
STANDARDIZATION (1)
STATISTICAL AGREEMENT (1)
SYSTEM OF CLASSIFICATION (1)
THERMODILUTION METHOD (1)
TOTAL HEMOGLOBIN (1)
URGENCY (1)
URGENCY MATCHING (1)
URGENCY MISMATCH (1)
VASCULAR RESISTANCE (1)
VASODILATION (1)
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Journal of Clinical Monitoring and Computing

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