Wassim A. Hassan

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OBJECTIVES To describe a two-dimensional (2D) ultrasound technique to measure cervical dilatation in labor, and to compare ultrasound with digital measurements. METHODS 2D transperineal ultrasound was performed in 21 nulliparous women in labor with a singleton fetus in cephalic presentation and cervical dilatation measured before or after a digital(More)
OBJECTIVES Progress of labor has hitherto been assessed by digital vaginal examination (VE). We introduce the concept of a non-intrusive ultrasound (US)-based assessment of labor progress (the 'sonopartogram') and investigate its feasibility for assessing cervical dilatation and fetal head descent and rotation. METHODS This was a prospective study(More)
OBJECTIVE To investigate whether head-perineum distance (HPD) measured by transperineal ultrasound is predictive of vaginal delivery and time remaining in labor in nulliparous women with prolonged first stage of labor and to compare the predictive value with that of angle of progression (AoP). METHODS This was a prospective observational study at(More)
OBJECTIVES To ascertain if fetal head position on transabdominal ultrasound is associated with delivery by Cesarean section in nulliparous women with a prolonged first stage of labor. METHODS This was a prospective observational study performed at Stavanger University Hospital, Norway, and Addenbrooke's Hospital, Cambridge, UK, between January 2012 and(More)
OBJECTIVE To examine cardiac function in appropriately grown, small for gestational age and intrauterine growth restricted fetuses and investigate the relationship between cardiac function and fetal arterial and venous Doppler parameters. STUDY DESIGN Myocardial performance index, isovolumetric contraction time, isovolumetric relaxation time, ejection(More)
Despite advances in ultrasound technology, the sensitivity for detection of facial clefts at the routine mid-trimester details scan remains relatively poor. This can be improved by the use of a three-point ultrasound screening protocol, although this is not routine in many countries. When a facial cleft is suspected at the routine scan, further imaging is(More)
α-Thalassaemia is the most common inherited disorder of Haemoglobin (Hb) production in southeast Asia, resulting from deficient synthesis of the α-globin chain component of the haemoglobin molecule due to deletion or inactivation of one or more of the normal four alpha-chain genes. The severity of the condition depends on the number of genes inactivated.(More)
Digital assessments of caput succedaneum are subjective; however, caput succedaneum can also be expressed as ultrasound measured skin-skull distance (SSD). In this study, we aimed to compare the clinical and ultrasound assessment of caput succedaneum (caput) in nulliparous women in the first stage of labour. Furthermore, we aimed to investigate the(More)
Recent guidance from the UK National Screening Committee (NSC) and the Fetal Anomaly Screening Programme (FASP) has led to important changes in prenatal ultrasound diagnosis and invasive testing. These relate to prenatal ultrasound investigation of what were previously known as 'soft markers' for Down's syndrome at the time of the detailed anomaly scan and(More)
OBJECTIVE Accurate prediction of whether a nulliparous woman will have a vaginal delivery would be a major advance in obstetrics. The objective of the study was to develop such a model based on maternal characteristics and the results of intrapartum ultrasound. STUDY DESIGN One hundred twenty-two nulliparous women in the first stage of labor were included(More)