Bidirectional cavopulmonary anastomosis with additional pulmonary blood flow: good or bad pre-Fontan strategy

et al. 2020

J Cardiothorac Surg

Objective We evaluated additional pulmonary blood flow at the time of bidirectional cavopulmonary shunt and its effects on the Fontan procedure and long-term outcome of Fontan circulation and liver function. Methods We included 22 patients (16 boys, 6 girls) having undergone bidirectional cavopulmonary shunt with additional pulmonary blood flow between April 2002 and January 2016. Mean age and body weight were 20 ± 13 months and 7.5 ± 6.5 kg, respectively. We retrospectively evaluated the patients’ clinical data, including cardiac catheterization data, liver function, and liver fibrosis markers. Results All patients were alive with a New York Heart Association status of I at the long-term follow-up. Changes between pre-bidirectional cavopulmonary shunt and 101 months after the Fontan procedure included the following: the cardiothoracic ratio of chest X-ray decreased from 52.2 ± 3.9% to 41.8 ± 5.9% (p < 0.001); systemic ventricle end-diastolic pressure decreased from 11.4 ± 3.2 mmHg to 6.9 ± 3.6 mmHg (p < 0.001); and the pulmonary artery index decreased from 485.1 ± 272.3 to 269.5 ± 100.5 (p = 0.02). Type IV collagen, hyaluronic acid, and procollagen levels increased over the normal range 116 months after the Fontan procedure. Conclusions The additional pulmonary blood flow at the time of bidirectional cavopulmonary shunt may contribute to pulmonary arterial growth at the Fontan procedure with low pulmonary arterial resistance and without ventricle volume overload. The Fontan circulation was well-maintained at the long-term follow-up, while liver fibrosis markers were above their normal values.

Section: Discussionsupporting

confidence: 56%

“…These short-term outcomes have been well discussed, whereas little is known about long-term outcomes in patients who underwent BCPS with APBF. Thus, whether APBF should be preserved at the time of BCPS remains controversial [7][8][9][10].…”

mentioning

confidence: 99%

Long-term results of additional pulmonary blood flow with bidirectional cavopulmonary shunt

et al. 2020

J Cardiothorac Surg

“…SVEDP decreased from 11.4 ± 3.2 to 8.2 ± 3.0 mmHg during the interstage of the Fontan procedure. In comparison with other reports (10,16,21), PAP, Rp, and SVEDP were similar or lower, whereas PAI was superior in our study. There were no intrapulmonary shunts or atrioventricular valve regurgitations that required intervention by the Fontan procedure.…”

Section: Discussioncontrasting

confidence: 53%

Long-term results of additional pulmonary blood flow with bidirectional cavopulmonary shunt

et al. 2020

Preprint

Objective: We evaluated additional pulmonary blood flow at the time of bidirectional cavopulmonary shunt and its effects on the Fontan procedure and long-term outcome of Fontan circulation and liver function.Methods: We included 22 patients (16 boys, 6 girls) having undergone bidirectional cavopulmonary shunt with additional pulmonary blood flow between April 2002 and January 2016. Mean age and body weight were 20 ± 13 months and 7.5 ± 6.5 kg, respectively. We retrospectively evaluated the patients' clinical data, including cardiac catheterization data, liver function, and liver fibrosis markers.Results: All patients were alive with a New York Heart Association status of I at the long-term follow-up. Changes between pre-bidirectional cavopulmonary shunt and 101 months after the Fontan procedure included the following: the cardiothoracic ratio of chest X-ray decreased from 52.2 ± 3.9% to 41.8 ± 5.9% (p < 0.001); systemic ventricle end-diastolic pressure decreased from 11.4 ± 3.2 mmHg to 6.9 ± 3.6 mmHg (p < 0.001); and the pulmonary artery index decreased from 485.1 ± 272.3 to 269.5 ± 100.5 (p = 0.02). Type IV collagen, hyaluronic acid, and procollagen levels increased over the normal range 116 months after the Fontan procedure.Conclusions: The additional pulmonary blood flow at the time of bidirectional cavopulmonary shunt may contribute to pulmonary arterial growth at the Fontan procedure with low pulmonary arterial resistance and without ventricle volume overload. The Fontan circulation was well-maintained at the long-term follow-up, while liver fibrosis markers were above their normal values.

“…In our study, PA developed well and PAI was maintained at 485. (10,16,21), PAP, Rp, and SVEDP were similar or lower, whereas PAI was superior in our study. There were no intrapulmonary shunts or atrioventricular valve regurgitations that required intervention by the Fontan procedure.…”

Section: Discussionsupporting

confidence: 48%

Long-term Results of Additional Pulmonary Blood Flow With Bidirectional Cavopulmonary Shunt

et al. 2020

Preprint

Objective: We evaluatedadditional pulmonary blood flowat the time of bidirectional cavopulmonary shunt andits effectson the Fontan procedure andlong-term outcome of Fontan circulation and liver function.Methods: We included 22patients (16 boys, 6 girls) having undergonebidirectional cavopulmonary shunt with additional pulmonary blood flow between April 2002 and January 2016. Mean ageand body weight were 20 ±13 monthsand 7.5 ± 6.5 kg, respectively.We retrospectively evaluated the patients'clinical data,including cardiac catheterization data, liver function, and liver fibrosis markers.Results: All patients werealive with a New York Heart Association status of I at the long-term follow-up. Changes between pre-bidirectional cavopulmonary shunt and 101 months after the Fontan procedure included the following:the cardiothoracic ratio of chest X-ray decreased from 52.2 ± 3.9% to 41.8 ± 5.9% (p<0.001);systemic ventricle end-diastolic pressure decreased from 11.4±3.2 mmHg to 6.9±3.6mmHg(p<0.001);and the pulmonary artery index decreased from 485.1±272.3 to 269.5 ± 100.5(p=0.02). Type IV collagen, hyaluronic acid, and procollagen levels increased over the normal range 116 months after the Fontan procedure.Conclusions:The additional pulmonary blood flowat the time of bidirectional cavopulmonary shuntmaycontributeto pulmonary arterial growth at the Fontan procedure with low pulmonary arterial resistanceand without ventricle volumeoverload. The Fontan circulation was well-maintained at thelong-term follow-up, while liver fibrosis markerswere above their normal values.