Doppler ultrasound measurement of cardiac output in patients with physiologic pacemakers

Stewart, William J.; DiCola, Vincent; Harthorne, J. Warren; Gillam, Linda D.; Weyman, Arthur E.

doi:10.1016/0002-9149(84)90188-7

Cited by 95 publications

(4 citation statements)

References 25 publications

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“…The differences in subject characteristics, especially their age (young vs. old) and the presence of heart disease (cardiomyopathy, hypertensive heart disease), the types of pacemaker used (single vs. dual chamber pacemaker), as well as the method of measurements, may have affected the results. It has been shown that those with a single chamber pacemaker or with heart disease, usually had a decreased CO with pacing, when compared to those with dual-chamber pacing [23, 24] and those with a normal heart [25].…”

Section: Discussionmentioning

confidence: 99%

Effect of increasing heart rate on finger photoplethysmography fitness index (PPGF) in subjects with implanted cardiac pacemakers

et al. 2018

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Finger photoplethysmography (PPG) is a noninvasive method that measures blood volume changes in the finger. The PPG fitness index (PPGF) has been proposed as an index of vascular risk and vascular aging. The objectives of the study were to determine the effects of heart rate (HR) on the PPGF and to determine whether PPGF is influenced by blood pressure (BP) changes. Twenty subjects (78±8 years, 3 female) with permanent cardiac pacemakers or cardioverter defibrillators were prospectively recruited. HR was changed by pacing, in a random order from 60 to 100 bpm and in 10 bpm increments. At each paced HR, the PPGF was derived from a finger photoplethysmogram. Cardiac output (CO), stroke volume (SV) and total peripheral resistance (TPR) were derived from the finger arterial pressure waveform. Brachial blood pressure (BP) was measured by the oscillometric method. This study found that as HR was increased from 60 to 100 bpm, brachial diastolic BP, brachial mean BP and CO were significantly increased (p<0.01), whilst the PPGF and SV were significantly decreased (p<0.001). The effects of HR on the PPGF were influenced by BP, with a decreasing HR effect on the PPGF that resulted from a higher BP. In conclusion, HR was a significant confounder for PPGF and it must be taken into account in analyses of PPGF, when there are large changes or differences in the HR. The magnitude of this effect was BP dependent.

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Section: Discussionmentioning

confidence: 99%

Effect of increasing heart rate on finger photoplethysmography fitness index (PPGF) in subjects with implanted cardiac pacemakers

et al. 2018

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“…Our study result revealed no superiority of dual-chamber pacemaker over single-chamber pacemaker, particularly on stroke volume index and cardiac index; contrary to previous studies which demonstrated dualchamber pacemaker known physiological and suspected clinical benefits. [14][15][16] The rational explanation for this result was downgrade of dual-chamber pacemaker DDDR mode setting (dual chamber rate adaptive pacemaker) to VVI (ventricular demand inhibited) on long-term follow up (median 13.2 months)-in view of the fact that ECG evaluation showed only 33.3% atrial-paced on DDDR mode pacemaker, the rest showed atrial-sensed ventricular-paced or atrialsensed ventricular-sensed. Previous analyses of DDD (dual-chamber pacing and sensing with inhibition and tracking) pacing mode survival have reported that after 2.5-3.4 years, a total of 4-18% of patients receiving a DDD pacemaker are downgraded to VVI pacing, most often due to atrial fibrillation (50-75%) or atrial lead failure (25-35%).…”

Section: Discussionmentioning

confidence: 99%

A novel non invasive measurement of hemodynamic parameters: Comparison of single-chamber ventricular and dual-chamber pacemaker

Pardede¹,

Yuniadi²

2008

Med J Indones

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AbstrakKami melakukan studi untuk menganalisis parameter hemodinamik pada pacu jantung jenis satu kamar ventrikel dibandingkan dengan jenis dua kamar secara non-invasif dengan thoracic electrical bioimpedance (Physio Flow™ dual-chamber pacemaker: 92% (10.2-187.7%) vs. 100.6% (48.7-403.2%); p=0.006. Systemic parameters assessment revealed significantly higher left cardiac work index in single-chamber group than dual-chamber group 4.9 kg.m/m² (2.8-7.6 kg.m/m²) vs. 4.3 kg.m/m² (2.9-7.2

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“…Stewart i wsp. [36] udowodnili, że zmiana trybu stymulacji z synchronicznej dwujamowej DDD na komorową w trybie VVI powoduje zmniejszenie pojemności minutowej serca. Spadek ten zależy od obecności wstecznego przewodzenia komorowo-przedsionkowego i wynosi odpowiednio 30%, natomiast u pacjentów bez wstecznego przewodzenia komorowo-przedsionkowego -14% [36].…”

Section: Zespół Stymulatorowyunclassified

Wpływ przewlekłej stymulacji prawej komory — aspekty elektrofizjologiczne, neurohumoralne, histopatologiczne i hemodynamiczne

Chęciński

Sławuta²,

Moszczyńska-Stulin

et al. 2016

Folia Cardiologica

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Pacjenci z objawową dysfunkcją węzła zatokowego to stosunkowo liczna grupa chorych, którzy, ze względu na nasilone objawy kliniczne, są poddawani zabiegowi implantacji stymulatora serca. Aktualna wiedza medyczna z dystansem odnosi się do korzyści ze stosowania stałej stymulacji serca w tej grupie chorych, zwłaszcza jeżeli rozpatruje się jej wpływ na ogólną przeżywalność pacjentów. Bezdyskusyjny pozostaje fakt korzystnego wpływu stymulacji na ograniczenie zgłaszanych przez pacjentów objawów klinicznych. Należy ze szczególną starannością kwalifikować pacjentów do tej formy terapii, a tym samym w sposób racjonalny zbilansować zyski wynikające ze stosowania elektrostymulacji z ewentualnymi niekorzystnymi następstwami, będącymi efektem przewlekłej stymulacji serca.

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Doppler ultrasound measurement of cardiac output in patients with physiologic pacemakers

Cited by 95 publications

References 25 publications

Effect of increasing heart rate on finger photoplethysmography fitness index (PPGF) in subjects with implanted cardiac pacemakers

Effect of increasing heart rate on finger photoplethysmography fitness index (PPGF) in subjects with implanted cardiac pacemakers

A novel non invasive measurement of hemodynamic parameters: Comparison of single-chamber ventricular and dual-chamber pacemaker

Wpływ przewlekłej stymulacji prawej komory — aspekty elektrofizjologiczne, neurohumoralne, histopatologiczne i hemodynamiczne

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