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The circulatory system plays a crucial role in ensuring the optimal functioning of the human body. One of its critical components is venous return - the process that completes the blood circulation cycle. This article will delve into the concept of venous return, how it works, and its significance to our health.
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Three-Dimensional Echocardiographic Method for the Visualization and Assessment of Specific Parameters of the Pulmonary Veins
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Type IV Total Anomalous Pulmonary Venous Connection.

James D St Louis1, Elizabeth M Turk1, Jeffrey P Jacobs2,3,4

  • 11 Division of Cardiac Surgery, Department of Surgery, Children's Mercy Hospitals and Clinics, Kansas City, MO, USA.

World Journal for Pediatric & Congenital Heart Surgery
|March 23, 2017
PubMed
Summary

Type IV total anomalous pulmonary venous connection (TAPVC) repair has a high mortality rate, especially with venous obstruction. This rare condition requires careful consideration of lung pathology post-surgery.

Keywords:
congenital heart diseasedatabasemortalityoutcomes

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Area of Science:

  • Congenital heart disease
  • Pediatric cardiac surgery
  • Cardiovascular research

Background:

  • Type IV total anomalous pulmonary venous connection (TAPVC) outcomes are often reported with other TAPVC types.
  • This study focuses on surgical outcomes for type IV TAPVC specifically.

Purpose of the Study:

  • To review surgical outcomes for type IV TAPVC using a multi-institutional cohort.
  • To identify patient-specific variables impacting operative outcomes in type IV TAPVC.

Main Methods:

  • Retrospective review of the Pediatric Cardiac Care Consortium (PCCC) registry (1982-2007).
  • Analysis of 215 patients with type IV TAPVC, examining gender, prematurity, age, anatomy, obstruction, anomalies, and mortality.
  • Type IV TAPVC subclassifications: IV A (2+2), IV B (3+1), and IV C (bizarre).

Main Results:

  • Overall unadjusted mortality for type IV TAPVC was 26% (215 of 2,248 TAPVC patients).
  • No significant mortality difference based on specific anatomic drainage patterns.
  • 28% of patients had partial pulmonary venous return obstruction; mortality was higher in obstructed cases (39% vs. 20%, P = .005).

Conclusions:

  • Type IV TAPVC is rare with diverse anatomy and significant mortality.
  • Obstruction is a key factor in poor outcomes, despite emergent repair in some cases.
  • Intrinsic lung pathology likely contributes to persistent postoperative mortality.