A study on normal reference values of echocardiographic chamber dimensions in new born infants from Eastern India - A pilot study

Introduction: Echocardiography has been an integral part of neonatal care since the 1990s and application of this technology is increasing ever since. It is already known that differences in weight, age and race significantly affect the normal heart dimensions. Therefore, establishing the normative values for cardiac dimensions among Indian healthy newborn infants is of paramount importance. In this study we report the normal reference values of echocardiographic chamber dimensions of newborn infants from eastern India. Methods: 100 healthy newborn infants were included in this cross-sectional, observational, single hospital-based pilot study. A single experienced cardiologist performed the trans-thoracic echocardiographic studies on the subjects in supine position in their respective bassinets. No sedation was used. The parameters were distributed according to body weight and in percentiles. Results: Subjects were categorized according to their body weight into three groups: 2-2.4 kg, 2.5-2.9 kg and 3-3.5 kg. Each group comprises of 7, 50 and 43 newborns respectively. Left ventricular end-diastolic dimension and left ventricular end-systolic dimension showed incremental trends across body weight. Conclusion: This study shows the difference of cardiac dimensions in Indian newborn infants from western data. This is the first study presenting the normative reference ranges and percentiles of echocardiographic parameters in Indian newborn infants which needs confirmation with larger multicenter studies.

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Generating normal reference values for examinations of the liver using Acoustic Radiation Force Impulse Virtual Touch Tissue Quantification (ARFI-VTTQ) elastography and comparison with Acoustic Radiation Force Impulse Virtual Touch Imaging and Quantification (ARFI-VTIQ) elastography: First results of a pilot study

Ultraschall in der Medizin - European Journal of Ultrasound ◽

10.1055/s-0033-1355081 ◽

2013 ◽

Vol 34 (S 01) ◽

Author(s):

T Graeter ◽

S Galgenmueller ◽

W Kratzer ◽

T Seufferlein ◽

HJ Brambs ◽

...

Keyword(s):

Pilot Study ◽

Reference Values ◽

Acoustic Radiation ◽

Radiation Force ◽

Acoustic Radiation Force ◽

Acoustic Radiation Force Impulse ◽

Normal Reference ◽

Virtual Touch Tissue Quantification ◽

First Results ◽

Tissue Quantification

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First results of a pilot study to generate normal reference values for shearwave elastography of the pancreas using Acoustic Radiation Force Impulse Virtual Touch Tissue Quantification in healthy subjects

Ultraschall in der Medizin - European Journal of Ultrasound ◽

10.1055/s-0033-1354807 ◽

2013 ◽

Vol 34 (S 01) ◽

Author(s):

A Akinli ◽

S Stumpf ◽

W Kratzer ◽

T Seufferlein ◽

HJ Brambs ◽

...

Keyword(s):

Pilot Study ◽

Reference Values ◽

Healthy Subjects ◽

Acoustic Radiation ◽

Radiation Force ◽

Acoustic Radiation Force ◽

Acoustic Radiation Force Impulse ◽

Normal Reference ◽

First Results ◽

Tissue Quantification

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Practical considerations for pancreas ultrasound elastography in pediatric patients before application of normal reference values

Pediatric Radiology ◽

10.1007/s00247-021-04994-0 ◽

2021 ◽

Author(s):

María M. Rojas-Rojas ◽

Sergio Valencia ◽

Gustavo A. Triana

Keyword(s):

Reference Values ◽

Pediatric Patients ◽

Ultrasound Elastography ◽

Normal Reference

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Normal Reference Values of Complete Blood Count in Healthy Adult Population of Pakistan; A Multicentre Study

10.53350/pjmhs2115113040 ◽

2021 ◽

Vol 15 (11) ◽

pp. 3040-3042

Author(s):

Neelam Mazhar ◽

Sarah Rafi ◽

Saima Farhan ◽

Shazia Yaseen ◽

Nisar Ahmed

Keyword(s):

Reference Values ◽

Blood Count ◽

Blood Donors ◽

Complete Blood Count ◽

Hematological Parameters ◽

Adult Population ◽

Armed Forces ◽

Reference Ranges ◽

Medical College ◽

Normal Reference

Aim: To establish the reference values of hematological parameters in blood donors of all the four provinces of Pakistan as a general population. Methods: This was a multicenter cross-sectional study conducted from Jan 2017-Oct 2017 in the blood bank and the Dept. of Haematology, The CH&ICH, Lahore, Fatimid Foundation, Karachi, Bolan medical college, Quetta, Armed Forces Institute of Transfusion, Rawalpindi & Ayub medical college, Abbottabad, KPK. Blood samples of 1060 male and female blood donors were collected from the blood banks of all the centers mentioned above. CBC and differential were performed using an automated hematology analyzer in the respective departments. Results: The mean and 95% reference values (2.5th-97.5th) for males WBC 7.752+4.506×109 cells/L, RBC 4.958 +1.331, HB 14.258 +3.423 g/dl, HCT 41.967 +16.345, MCV 84.584 +15.933, PLT 219.485 +197.331, LYM 3.346 +10.112, NEUT 6.843+23.557, MONO 0.811 +3.601, EO 0.327 +0.995. For females WBC 7.174+3.037, RBC4.567 +1.086, HB 12.972 +2.752, HCT39.647 +48.186, PLT 264.07+175.079, LYM 2.537+5.005, NEUT 4.769+11.314, MONO 0.460 +0.909, EO 0.188+0.39 Conclusion: The hematological profile of the population in all four provinces of Pakistan differed from the reports of other countries and the standard reference ranges described in the textbook. So, our own hematological parameters must be followed. More studies must be carried out on other age groups and even on adults to strengthen our results. Keywords: Normal reference values, Complete blood count, Healthy adults of Pakistan

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