Volume 14, Issue 4 pp. 582-589
ORIGINAL ARTICLE

Pacemaker treatment after Fontan surgery—A Swedish national study

Jenny Alenius Dahlqvist MD

Corresponding Author

Jenny Alenius Dahlqvist MD

Department of Clinical Sciences, Umeå University, Umeå, Sweden

Correspondence

Jenny Alenius Dahlqvist, Department of Clinical Sciences, Umeå University, 901 85 Umeå, Sweden.

Email: [email protected]

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Jan Sunnegårdh MD, PhD

Jan Sunnegårdh MD, PhD

Department of Cardiology, The Queen Silvia Children’s Hospital, Sahlgrenska University Hospital, Institute of Clinical Sciences, Gothenburg University, Gothenburg, Sweden

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Katarina Hanséus MD, PhD

Katarina Hanséus MD, PhD

Department of Clinical Sciences Lund, Children’s Heart Center, Skåne University Hospital, Lund University, Lund, Sweden

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Eva Strömvall Larsson MD, PhD

Eva Strömvall Larsson MD, PhD

Department of Cardiology, The Queen Silvia Children’s Hospital, Sahlgrenska University Hospital, Institute of Clinical Sciences, Gothenburg University, Gothenburg, Sweden

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Anders Nygren MD, PhD

Anders Nygren MD, PhD

Department of Cardiology, The Queen Silvia Children’s Hospital, Sahlgrenska University Hospital, Institute of Clinical Sciences, Gothenburg University, Gothenburg, Sweden

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Magnus Dalén MD, PhD

Magnus Dalén MD, PhD

Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden

Department of Cardiac Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden

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Håkan Berggren MD, PhD

Håkan Berggren MD, PhD

Department of Pediatric Cardiac Surgery, Children’s Heart Center, The Queen Silvia Children’s Hospital, Gothenburg, Sweden

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Jens Johansson Ramgren MD

Jens Johansson Ramgren MD

Department of Pediatric Cardiac Surgery, Children’s Heart Center, Skånes University Hospital, Lund, Sweden

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Urban Wiklund PhD

Urban Wiklund PhD

Department of Radiation Sciences, Biomedical Engineering, Umeå University, Umeå, Sweden

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Annika Rydberg MD, PhD

Annika Rydberg MD, PhD

Department of Clinical Sciences, Umeå University, Umeå, Sweden

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First published: 18 March 2019
Citations: 13

Funding information

Hjärt-Lungfonden; Västerbotten Läns Landsting; Magnus Dalén was financially supported by the Senning Scholarship from the Swedish Association for Cardiothoracic Surgery

Abstract

Objective

Fontan surgery is performed in children with univentricular heart defects. Previous data regarding permanent pacemaker implantation frequency and indications in Fontan patients are limited and conflicting. We examined the prevalence of and risk factors for pacemaker treatment in a consecutive national cohort of patients after Fontan surgery in Sweden.

Methods

We retrospectively reviewed all Swedish patients who underwent Fontan surgery from 1982 to 2017 (n = 599).

Results

After a mean follow-up of 12.2 years, 13% (78/599) of the patients with Fontan circulation had received pacemakers. Patients operated with the extracardiac conduit (EC) type of total cavopulmonary connection had a significantly lower prevalence of pacemaker implantation (6%) than patients with lateral tunnel (LT; 17%). Mortality did not differ between patients with (8%) and without pacemaker (5%). The most common pacemaker indication was sinus node dysfunction (SND) (64%). Pacemaker implantation due to SND was less common among patients with EC. Pacemaker implantation was significantly more common in patients with mitral atresia (MA; 44%), double outlet right ventricle (DORV; 24%) and double inlet left ventricle (DILV; 20%). In contrast, patients with pulmonary atresia with intact ventricular septum and hypoplastic left heart syndrome were significantly less likely to receive a pacemaker (3% and 6%, respectively).

Conclusions

Thirteen percent of Fontan patients received a permanent pacemaker, most frequently due to SND. EC was associated with a significantly lower prevalence of pacemaker than LT. Permanent pacemaker was more common in patients with MA, DORV, and DILV.

CONFLICT OF INTEREST

The authors declare that they have no conflicts of interest with the contents of this article.

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