FloWatch versus conventional pulmonary artery banding

Corno, Antonio F.; Ladusans, E J; Pozzi, Marco; Kerr, Stephen J.

doi:10.1016/j.jtcvs.2007.03.065

Cited by 38 publications

(74 citation statements)

References 26 publications

(52 reference statements)

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“…Τhere is statistical significant difference between groups concerning the percentage change from baseline to 10 minute of the SVR variable and a statistically significant difference between the two groups at 20 minute (p = 0.075). Our recordings of a low MAP and low SVR in both groups are consistent with the results described by other investigators [20-22]. …”

Section: Discussionsupporting

confidence: 93%

Acute pressure overload of the right ventricle. Comparison of two models of right-left shunt. Pulmonary artery to left atrium and right atrium to left atrium: experimental study

Argiriou¹,

Mikroulis

Sakellaridis³

et al. 2011

J Cardiothorac Surg

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AbtractBackgroundIn right ventricular failure (RVF), an interatrial shunt can relieve symptoms of severe pulmonary hypertension by reducing right ventricular preload and increasing systemic flow. Using a pig model to determine if a pulmonary artery - left atrium shunt (PA-LA) is better than a right atrial - left atrial shunt (RA-LA), we compared the hemodynamic effects and blood gases between the two shunts.MethodsThirty, male Large White pigs weighting in average 21.3 kg ± 0.7 (SEM) were divided into two groups (15 pigs per group): In group 1, banding of the pulmonary artery and a pulmonary artery to left atrium shunt with an 8 mm graft (PA-LA) was performed and in group 2 banding of the pulmonary artery and right atrial to left atrial shunt (RA-LA) with a similar graft was performed. Hemodynamic parameters and blood gases were measured from all cardiac chambers in 10 and 20 minutes, half and one hour interval from the baseline (30 min from the banding). Cardiac output and flow of at the left anterior descending artery was also monitored.ResultsIn both groups, a stable RVF was generated. The PA-LA shunt compared to the RA-LA shunt has better hemodynamic performance concerning the decreased right ventricle afterload, the 4 fold higher mean pressure of the shunt, the better flow in left anterior descending artery and the decreased systemic vascular resistance. Favorable to the PA-LA shunt is also the tendency - although not statistically significant - in relation to central venous pressure, left atrial filling and cardiac output.ConclusionThe PA-LA shunt can effectively reverse the catastrophic effects of acute RVF offering better hemodynamic characteristics than an interatrial shunt.

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Section: Discussionsupporting

confidence: 93%

Acute pressure overload of the right ventricle. Comparison of two models of right-left shunt. Pulmonary artery to left atrium and right atrium to left atrium: experimental study

Argiriou¹,

Mikroulis

Sakellaridis³

et al. 2011

J Cardiothorac Surg

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“…Better PAB material should be developed to improve the procedure and decrease re-PAB. The present available FloWatch Flow-PAB might be a good option since some long-term result is established [13][14][15]. However, the size may not be available at present for these adult CHD patients because the pulmonary artery size of elevated pressure is usually over 40 mm.…”

Section: Discussionmentioning

confidence: 99%

Alternative approach for selected severe pulmonary hypertension of congenital heart defect without initial correction — Palliative surgical treatment

Lin

Chen

Huang

et al. 2011

International Journal of Cardiology

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“…Some early proponents of FW-PAB have reported encouraging results. 17,19 In 2004, a European multi-institutional clinical study demonstrated feasibility, but, according to the authors, ''did not prove the clinical efficacy of the Flo-Watch PAB 2 2 0 20 50 100 2 VSD 1 1 0 50 50 95 3 AVSD Removed the same day of implantation 4 VSD 3 3 0 60 55 96 5 VSD 3 2 1 60 70 95 6 VSD 6 3 3 25 40 95 7 VSD 4 3 1 30 45 97 8 VSD 4 4 0 50 40 97 9 c-TGA 5 5 0 75 45 97 10 VSD 3 3 0 35 55 90 11 AVSD 3 3 0 60 70 compared with standard approaches'' (p. II162). 17 Bonnet and associates concluded, ''When larger sizes will be available and the telemetric control improved, the most interesting indication will probably be left ventricular training in older patients with transposition-intact ventricular septum or double discordance.''…”

Section: Discussionmentioning

confidence: 99%

“…Early proponents have reported satisfactory results. 17,19 One study claimed distinct advantages over conventional PAB with respect to length of postoperative mechanical ventilation and length of stay in the intensive care unit (ICU) and in hospital. This study was undertaken to compare the results obtained in our unit with FloWatch PAB (FW-PAB) to those obtained with conventional pulmonary artery banding (conv-PAB).…”

mentioning

confidence: 99%

Pulmonary Artery Banding

D’Alfonso

Quarti

Colaneri

et al. 2010

World J Pediatr Congenit Heart Surg

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Proponents of a telemetrically adjustable pulmonary artery band (PAB) device have cited simplified postoperative management and shortened length of stay as advantages associated with that technology. This report concerns a recent experience with both conventional pulmonary artery banding (conv-PAB) and the telemetrically adjustable PAB FloWatch (FW-PAB). From January 2005 through December 2008, 19 consecutive infants underwent either conv-PAB (8 patients, mean age 3.5 months, mean weight 4.1 kg) or FW-PAB (11 patients, mean age 2.6 months, mean weight 3.1 kg). Indications for PAB were left ventricular retraining (1 patient in FW-PAB), palliation prior to biventricular repair (7 patients in conv-PAB and 10 in FW-PAB group), and staged univentricular repair (1 patient in conv-PAB). In-hospital mortality was 0%. In the FW-PAB group, 1 FloWatch device was removed because of hemodynamic compromise related to the bulk of the device. There were no major complications in the conv-PAB group and no differences between groups with respect to postoperative ventilation time or length of stay in the intensive care unit or in hospital. In the FW-PAB group, a mean of 3.1 ± 1.7 regulations per patient were undertaken. Of the regulations, 85% (29/34) were adjustments to tighten the device, and 15% (5/34) were to loosen it. During follow-up, 8 patients underwent intracardiac repair and pulmonary artery debanding: 4 in the conv-PAB group and 4 in the FW-PAB group. The course of patients in both groups after PAB were similar. Major differences in length of stay and resource utilization were not apparent.

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FloWatch versus conventional pulmonary artery banding

Cited by 38 publications

References 26 publications

Acute pressure overload of the right ventricle. Comparison of two models of right-left shunt. Pulmonary artery to left atrium and right atrium to left atrium: experimental study

Acute pressure overload of the right ventricle. Comparison of two models of right-left shunt. Pulmonary artery to left atrium and right atrium to left atrium: experimental study

Alternative approach for selected severe pulmonary hypertension of congenital heart defect without initial correction — Palliative surgical treatment

Pulmonary Artery Banding

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