Biblioscape User Community

 

  At first I used "RIS -- Reference Manager (Ver. 5 compatible)" to import records from IEEE, and part of contents of 'Abstract' were sometimes lost.

  Then I tried the newest RIS import filter which was downloaded from 'http://support.biblioscape.com/node/138'. But the same problem still exist.

  I tried several reference of IEEE and compared their .RIS file. I found that those whose 'Abstract' took a lot of lines had the problem with importing, and those whose 'Abstract' took less lines had no problem. The part of 'Abstract' lost in importing was the last two line of 'Abstract' before the tag 'ER - '.

  Why do the last two lines of 'Abstract' lost? And how can I import the 'Abstract' correctly?

 

Thanks a lot!

 

Here are three examples. Two have the problem. One has no problem.

1. The first one which gets the problem.

   The 'Abstract' imported is "In implantable cardioverter defibrillators (ICDs) heart rate can

not discriminate lethal tachycardias from benign ones which lead to

false therapy. The blood pressure (BP) waveform is the clue for

classifying these varieties. The authors have designed and developed an

automated online analysis of BP waveforms and propose a possible method

to detect tachycardias by examining BP waveforms only. The associated

tachycardia algorithm that discerns the change of stroke volume output

of the heart identified unstable tachycardias with a rate of 90.5%

(specificity) and 67.6% (sensitivity). Detected tachycardias exhibited

irregularities in interval and magnitude of BP waveforms. However, for

tachycardias which were not detected there were regular BP waveforms

although the magnitude and rate were different from that of sinus".

   And the last two lines "rhythm. It is concluded that this feature can be the clue for

discrimination of hemodynamically stable and unstable tachycardias" lose.

 

TY  - CONF

JO  - Computers in Cardiology 1998

TI  - Automated analysis of intracardiac blood pressure waveforms for

implantable defibrillators

IS  -

SN  -

SP  - 269

EP  - 272

AU  - Yeo-Sun Yoon

AU  - Jenkins, J.M.

PY  - 1998

KW  - blood pressure measurement

KW  - cardiology

KW  - defibrillators

KW  - medical signal processing

KW  - prosthetics

KW  - waveform analysis

KW  - automated online analysis

KW  - benign tachycardias

KW  - heart rate

KW  - hemodynamically stable tachycardias

KW  - hemodynamically unstable tachycardias

KW  - implantable defibrillators

KW  - intracardiac blood pressure waveforms

KW  - lethal tachycardias

KW  - sinus rhythm

VL  -

JA  - Computers in Cardiology 1998

AB  - In implantable cardioverter defibrillators (ICDs) heart rate can

not discriminate lethal tachycardias from benign ones which lead to

false therapy. The blood pressure (BP) waveform is the clue for

classifying these varieties. The authors have designed and developed an

automated online analysis of BP waveforms and propose a possible method

to detect tachycardias by examining BP waveforms only. The associated

tachycardia algorithm that discerns the change of stroke volume output

of the heart identified unstable tachycardias with a rate of 90.5%

(specificity) and 67.6% (sensitivity). Detected tachycardias exhibited

irregularities in interval and magnitude of BP waveforms. However, for

tachycardias which were not detected there were regular BP waveforms

although the magnitude and rate were different from that of sinus

rhythm. It is concluded that this feature can be the clue for

discrimination of hemodynamically stable and unstable tachycardias

ER  -

 

2. The first one which gets the problem.

   The 'Abstract' imported is "Mechanisms through which biphasic waveforms lower defibrillation

threshold are unknown. Previous work showed that low-intensity biphasic

shocks (BS2), delivered during the refractory period of a control action

potential (S1), produced significantly longer responses than monophasic

shocks (MS2). To test the hypothesis that longer responses are due to

hyperpolarization-induced excitation channel recovery during the first

portion of the biphasic waveform, the authors used the Beeler-Reuter

ventricular action potential computer model with the Drouhard-Roberge

(BRDR) modification to study refractory period stimulation with MS2 (10

msec) and symmetrical BS2 (10 msec each pulse). At 1.5 times diastolic

threshold, BS2 prolonged action potential duration when delivered 50

msec into the S1 refractory period, and produced a maximum BS2 versus

MS2 response duration difference of 62 msec. Longer BS2 responses

corresponded to enhanced BS2-induced sodium current compared to MS2.

Maximum BS2 vs MS2 sodium current difference was 400 uA/cm².

These results show that, in a computer model of the ventricular action

potential, hyperpolarization by the first phase of a biphasic waveform

enhances S2 sodium current and prolongs duration of refractory-period

responses. This effectively shortens the cellular refractory period.

Prolonged refractory period responses, produced by biphasic".

   And the last two lines "defibrillator waveforms, may underlie enhanced defibrillating efficacy

at low shock intensities" lose.

 

TY  - JOUR

JO  - Biomedical Engineering, IEEE Transactions on

TI  - Refractory period prolongation by biphasic defibrillator waveforms

is associated with enhanced sodium current in a computer model of the

ventricular action potential

IS  - 1

SN  - 0018-9294

SP  - 60

EP  - 68

AU  - Jones, J.L.

AU  - Jones, R.E.

AU  - Milne, K.B.

PY  - 1994

KW  - bioelectric potentials

KW  - biology computing

KW  - cardiology

KW  - defibrillators

KW  - digital simulation

KW  - physiological models

KW  - 10 to 62 ms

KW  - Beeler-Reuter ventricular action potential

KW  - Drouhard-Roberge modification

KW  - Na

KW  - biphasic defibrillator waveforms

KW  - cellular refractory period

KW  - computer model

KW  - diastolic threshold

KW  - enhanced sodium current

KW  - hyperpolarization-induced excitation channel recovery

KW  - low-intensity biphasic shocks

KW  - monophasic shocks

KW  - refractory period prolongation

VL  - 41

JA  - Biomedical Engineering, IEEE Transactions on

AB  - Mechanisms through which biphasic waveforms lower defibrillation

threshold are unknown. Previous work showed that low-intensity biphasic

shocks (BS2), delivered during the refractory period of a control action

potential (S1), produced significantly longer responses than monophasic

shocks (MS2). To test the hypothesis that longer responses are due to

hyperpolarization-induced excitation channel recovery during the first

portion of the biphasic waveform, the authors used the Beeler-Reuter

ventricular action potential computer model with the Drouhard-Roberge

(BRDR) modification to study refractory period stimulation with MS2 (10

msec) and symmetrical BS2 (10 msec each pulse). At 1.5 times diastolic

threshold, BS2 prolonged action potential duration when delivered 50

msec into the S1 refractory period, and produced a maximum BS2 versus

MS2 response duration difference of 62 msec. Longer BS2 responses

corresponded to enhanced BS2-induced sodium current compared to MS2.

Maximum BS2 vs MS2 sodium current difference was 400 uA/cm².

These results show that, in a computer model of the ventricular action

potential, hyperpolarization by the first phase of a biphasic waveform

enhances S2 sodium current and prolongs duration of refractory-period

responses. This effectively shortens the cellular refractory period.

Prolonged refractory period responses, produced by biphasic

defibrillator waveforms, may underlie enhanced defibrillating efficacy

at low shock intensities

ER  -

 

3. The one which has no problem.

 

TY  - CONF

JO  - Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE

TI  - Comparison of the efficacy of two biphasic waveform defibrillators in a model of simulated higher impedance patients

IS  -

SN  - 1094-687X 

SP  -  183

EP  -  185 Vol.1

AU  - McDaniel, W.C.

AU  - Garrett, M.

AU  - Burke, M.C.

AU  - Arzbaecher, R.

PY  - 2003

KW  - bioelectric phenomena

KW  - cardiology

KW  - defibrillators

KW  - patient treatment

KW  - physiological models

KW  - waveform analysis

KW  - Life Quest BTE defibrillator

KW  - LifePak 12 BTE defibrillator

KW  - animal model

KW  - biphasic truncated exponential waveforms

KW  - higher impedance patients

KW  - implantable cardioverter defibrillators

KW  - transthoracic defibrillators

KW  - transthoracic impedance

VL  - 1

JA  - Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE

AB  -  Biphasic truncated exponential (BTE) waveforms are used in all implantable cardioverter defibrillators, and are now being implemented in transthoracic defibrillators. Not all BTE waveforms are the same, and the direct comparison of BTE defibrillators is rare. In addition, humans exhibit a wide range of transthoracic impedance, and defibrillators compensate for this range of impedance in different ways. Here we compared the efficacy of the Life Quest BTE defibrillator made by Medical Research Labs., Inc. (MRL) to the LifePak 12 BTE defibrillator made by PhysioControl (PC) in an animal model that simulates higher impedance patients (which are reported to be associated with poorer outcomes with conventional defibrillators). We found the MRL BTE waveform was as effective as the PC BTE waveform on the basis of delivered energy, but required 22 percent less peak current in this model of simulated higher impedance patients.

ER  -