Spontaneous resolution of a ‘ping-pong’ fracture at birth

'Ping pong' fracture in a term infant.

1 of 2 DESCRIPTION We report a term infant born by emergency C-section for fetal bradycardia. Active labour was established at the time of section, resulting in the fetus being deeply impacted and diffi cult to extract. Baby was born pale and fl oppy but responded to infl ation breaths. Antenatal scans were unremarkable. She was noted to have a depression measuring 4×4 cm in the right parietal ...

“Spontaneous” ping-pong fracture in newborns: case report and review of the literature

“Ping-pong” fractures (PPF) are depressed skull fractures typical of newborns. PPF usually result from head injury and, rarely, may cause severe long-term neurological sequelae. The management of PPF is still controversial. The goal of this paper is to present a case of “spontaneous” ping-pong fracture and to review the pertinent literature of the last 20 years. We report on a newborn who prese...

Neonatal ping pong fracture SWISS SOCIETY OF NEONATOLOGY

Derivation of rate equations for multisite ping-pong mechanisms with ping-pong reactions at one or more sites.

It has become clear as the result of the pioneering studies of Northrop on transcarboxylase (l), and the later studies in Lardy’s (2) and Utter’s (3) laboratories on pyruvate carboxylase that biotin-containing enzymes have two-site ping-pong mechanisms in which biotin is carboxylated at one site, and in turn carboxylates a substrate at the second site. The rate equations for such mechanisms hav...

A ping-pong ball in left atrium.

Accepted 18 December 2017 DesCripTion Rheumatic heart disease (RHD) is much prevalent in low/middle-income country like India with the prevalence ranging from 0.2 to 1.1/1000 for RHD and from 0.0007 to 0.2/1000 for rheumatic fever. Factors that precipitate the formation of clot are atrial fibrillation (AF) rhythm, left atrial (LA) size, duration of symptoms, advanced age and severity of mitral ...