A. Bonnaerens - Academia.edu (original) (raw)

Papers by A. Bonnaerens

Facts, views & vision in ObGyn, 2011

Single center 10-years audit on the relation between labour ward management and caesarean section... more Single center 10-years audit on the relation between labour ward management and caesarean section rate, with special emphasis on the impact of reduced induction rate and the use of strict criteria for the diagnosis of onset of spontaneous labour and the indication for induction of labour. Retrospective classification of all deliveries between 1st January 2001 and 31st December 2010 in Ziekenhuis Oost Limburg, Genk Belgium, into the 10- group classification according to Robson. Numbers and rate of caesarean sections were defined for primiparous and multiparous women in spontaneous labour (groups 1 and 3 respectively), after induced labour (groups 2 and 4 respectively), with caesarean scar uterus (group 5) or with other gestational complications (groups 6 to 10). For these groups, a 10-years evolution was evaluated. In a total of 19.675 deliveries, the overall caesarean section rate increased from 20% (380/1937) in 2001 to 25% (534/2121) in 2007 (p < 0.001), and decreased again to ...

Facts, views & vision in ObGyn, 2011

To evaluate the relevance of systematic screening for neonatal metabolic acidosis at birth as par... more To evaluate the relevance of systematic screening for neonatal metabolic acidosis at birth as part of perinatal audit. For every baby, born in Ziekenhuis Oost Limburg, Genk Belgium between 1/1/2010 and 31/12/2010, cord blood was analysed to diagnose metabolic acidosis, defined as arterial or venous pH ≤ 7.05 or 7.17 respectively, in association with base excess of ≤ -10 mmol/L. Three observers identified indicators for suboptimal peripartal care with likely contribution to metabolic acidosis. In a multidisciplinary consensus meeting, these indicators were classified into 5 categories : (a) fetal monitoring error (b) labour management error, (c) instrumental vaginal delivery for fetal distress within 2 h of second stage, (d) non-obstetric medical complications, (e) preterm births or accidental cases at term. In a total of 2117 neonates, there were 11 intra-uterine, 1 intrapartum and 3 early neonatal deaths, bringing early perinatal mortality rate at 7.1‰. Metabolic acidosis was ident...

Facts, views & vision in ObGyn, 2014

Today, perinatal audit focuses basically on cases of perinatal mortality. In most centres in West... more Today, perinatal audit focuses basically on cases of perinatal mortality. In most centres in Western Europe, perinatal mortality is low. Identification of metabolic acidosis at birth may increase index cases eligible for evaluation of perinatal care, and this might improve quality of perinatal audit. The aim of this study is to assess the incidence of metabolic acidosis at birth in order to estimate its impact on perinatal audit. Cord blood was analysed for every neonate born between January 1, 2010 and December 31, 2012 in Ziekenhuis Oost-Limburg, Genk. Acidosis was defined as an umbilical arterial pH ≤ 7.05 with or without a venous pH ≤ 7.17. Respiratory acidosis (RA) was defined as acidosis with normal base excess, and metabolic acidosis (MA) was defined as acidosis with an arterial or venous base excess ≤ -10 mmol/L. In case of failed cord blood sampling, 5 minute Apgar score ≤ 6 was considered as the clinical equivalent of MA. Retrospective chart review of obstetric and paediat...

Facts, views & vision in ObGyn, 2011

Single center 10-years audit on the relation between labour ward management and caesarean section... more Single center 10-years audit on the relation between labour ward management and caesarean section rate, with special emphasis on the impact of reduced induction rate and the use of strict criteria for the diagnosis of onset of spontaneous labour and the indication for induction of labour. Retrospective classification of all deliveries between 1st January 2001 and 31st December 2010 in Ziekenhuis Oost Limburg, Genk Belgium, into the 10- group classification according to Robson. Numbers and rate of caesarean sections were defined for primiparous and multiparous women in spontaneous labour (groups 1 and 3 respectively), after induced labour (groups 2 and 4 respectively), with caesarean scar uterus (group 5) or with other gestational complications (groups 6 to 10). For these groups, a 10-years evolution was evaluated. In a total of 19.675 deliveries, the overall caesarean section rate increased from 20% (380/1937) in 2001 to 25% (534/2121) in 2007 (p < 0.001), and decreased again to ...

Facts, views & vision in ObGyn, 2011

To evaluate the relevance of systematic screening for neonatal metabolic acidosis at birth as par... more To evaluate the relevance of systematic screening for neonatal metabolic acidosis at birth as part of perinatal audit. For every baby, born in Ziekenhuis Oost Limburg, Genk Belgium between 1/1/2010 and 31/12/2010, cord blood was analysed to diagnose metabolic acidosis, defined as arterial or venous pH ≤ 7.05 or 7.17 respectively, in association with base excess of ≤ -10 mmol/L. Three observers identified indicators for suboptimal peripartal care with likely contribution to metabolic acidosis. In a multidisciplinary consensus meeting, these indicators were classified into 5 categories : (a) fetal monitoring error (b) labour management error, (c) instrumental vaginal delivery for fetal distress within 2 h of second stage, (d) non-obstetric medical complications, (e) preterm births or accidental cases at term. In a total of 2117 neonates, there were 11 intra-uterine, 1 intrapartum and 3 early neonatal deaths, bringing early perinatal mortality rate at 7.1‰. Metabolic acidosis was ident...

Facts, views & vision in ObGyn, 2014

Today, perinatal audit focuses basically on cases of perinatal mortality. In most centres in West... more Today, perinatal audit focuses basically on cases of perinatal mortality. In most centres in Western Europe, perinatal mortality is low. Identification of metabolic acidosis at birth may increase index cases eligible for evaluation of perinatal care, and this might improve quality of perinatal audit. The aim of this study is to assess the incidence of metabolic acidosis at birth in order to estimate its impact on perinatal audit. Cord blood was analysed for every neonate born between January 1, 2010 and December 31, 2012 in Ziekenhuis Oost-Limburg, Genk. Acidosis was defined as an umbilical arterial pH ≤ 7.05 with or without a venous pH ≤ 7.17. Respiratory acidosis (RA) was defined as acidosis with normal base excess, and metabolic acidosis (MA) was defined as acidosis with an arterial or venous base excess ≤ -10 mmol/L. In case of failed cord blood sampling, 5 minute Apgar score ≤ 6 was considered as the clinical equivalent of MA. Retrospective chart review of obstetric and paediat...