Clinical and Experimental Pediatrics

Original Article

Neonatology (Perinatology)

Association between base excess levels and clinical outcomes among very low birth weight infants: a multicenter birth cohort study in South Korea

Ji Yoo Kim, Hyeon Jin Kim, Heeyoon Choi, Minji Kim, Jinseok Lee, Yong Sung Choi, Dong Keon Yon

Clin Exp Pediatr. 2026;69(7):555-562. Published online May 21, 2026

Question: Is metabolic acidosis at birth in very low birth weight infants (VLBWIs) associated with long-term clinical outcomes?
Finding: Metabolic acidosis at birth was associated with increased mortality, adverse respiratory outcomes, neurological morbidities, and infection-related and gastrointestinal outcomes.
Meaning: VLBWIs with metabolic acidosis are at high risk of systemic complications. This finding emphasizes the need for close monitoring and comprehensive care.

DOI: https://doi.org/10.3345/cep.2025.02817

Multiple births conceived by assisted reproductive technology in Korea

Young Sil Park, Sun Hee Choi, Kye Shik Shim, Ji Young Chang, Won Ho Hahn, Yong Sung Choi, Chong-Woo Bae

Clin Exp Pediatr. 2010;53(10):880-885. Published online October 31, 2010

Crossref 15

Purpose

The recent trends of multiple births (MBs) conceived by assisted reproductive technology (ART) in Korea were analyzed as well as the relationship with maternal age, especially advanced maternal age.

Methods

Data were obtained from the Korean Statistical Information Service and annual ART reports from the ART committee of the Korean Society of Obstetrics and Gynecology.

Results

MBs increased from the early 1990s; there was...

DOI: https://doi.org/10.3345/kjp.2010.53.10.880

Complete rooming-in care of newborn infants

Yoo Min Lee, Kang Hoon Song, Young Mi Kim, Jin Sun Kang, Ji Young Chang, Hyun Joo Seol, Yong Sung Choi, Chong Woo Bae

Clin Exp Pediatr. 2010;53(5):634-638. Published online May 31, 2010

Crossref 7

Purpose

In Kyung Hee East-West Neo Medical Center, Seoul, Korea, efforts to raise rooming-in care success rate have been undertaken since when the hospital was established in 2006. We intended to analyze our experience over the past 3 years of period and to discuss the advantages of rooming-in.

Methods

We analyzed the rooming-in practice rate, failure rate, and the breast feeding rate. Subjects...

DOI: https://doi.org/10.3345/kjp.2010.53.5.634

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