scholarly journals Progressive Decline of Partial Pressure of Carbon dioxide and Bicarbonate levels in Arterial Blood of Pregnant Women

1970 ◽  
Vol 3 ◽  
pp. 13-16
Author(s):  
Dipok Kumar Sunyal ◽  
Md Ruhul Amin ◽  
MH Molla ◽  
MA Momen Talukder ◽  
Abida Ahmed ◽  
...  

 In the present study the partial pressure of carbon dioxide (PaCO2) and bicarbonate ion (HCO3-) in arterial blood was estimated in 32 women in Dhaka city. For this purpose a total 32 women subjects with age ranged from 25 years to 35 years without any recent history of respiratory diseases were selected and divided into 8 healthy non-pregnant women as control and 24 normal pregnant women as experimental group. Experimental group was further divided into 8 first trimester, 8 second trimester & 8 third trimester of pregnant women. The PaCO2 and HCO3- were estimated by using "Easy Blood Gas Auto Analyzer". The PaCO2 and HCO3- were estimated during the 1st, 2nd, 3rd trimesters of pregnant women and non-pregnant women. The mean of measured values of PaCO2 and HCO3-were analyzed statistically in relation to 1st, 2nd, 3rd trimesters of pregnant women & non-pregnant women. The PaCO2 and HCO3- were significantly lower in 1st trimester, 2nd trimester & 3rd trimester of pregnant women than that of non-pregnant women. There were no statistically significant difference of PaCO2 and HCO3- between the 1st trimester and 2nd trimester; between the 1st trimester and 3rd trimester; and between the 2nd trimester and 3rd trimester of pregnant women. It may be concluded that the causes of progressively decreased PaCO2 and HCO3- throughout the pregnancy were most likely to be due to effect of progesterone causing hyperventilation. Hyperventilation in pregnancy is due to hypersensitivity of respiratory centre. Due to hyperventilation, there is expelling out CO2 and HCO3- causing decreases PaCO2 and HCO3- during pregnancy. doi: 10.3329/jbsp.v3i0.1788 J Bangladesh Soc Physiol.2008 Dec;(3):13-16.

2008 ◽  
Vol 10 (Number 1) ◽  
pp. 10-15
Author(s):  
D K Sunyal ◽  
Md. R Amin ◽  
MH Md. R ◽  
GM Kibria ◽  
G M Molla ◽  
...  

In the present study the partial pressure of carbon dioxide in arterial blood (PaC0:1 and respiratory rate (RR) were studied in pregnant and non-pregnant women in Dhaka city. Far this purpose a total 32 women for PaCO)and 100 women for RR with age ranging front 25 ...ears le 35 years without any recent history of respiratory diseases were selected. Normal pregnant women were taken as e.yperimental group and healthy nor-pregnant ...omen as return!. Data was collected during first trimester. second trimester and third trimester in pregnant women and also nompregnant women. The PaCOrwas determined by using 'EASY BLOOD GAS .0TO INALMER" and RR was recorded. The PaCO, and RR during different trimesters of pregnant .rumen were compared with that of non-pregnant 11.1101. Statistical analysis was drum with .tudents '1' rest. The PeCOr was significantly lower in first trimester, second trimester and third (rimester of pregnant women than that of non-pregnant women. Similarly, RR was significantly higher in first trimester. second trimester and third trimester of pregnant women than that of nonpregnant women. Again RR was significantly higher in third trimester than in first trimester and second trimester of pregnant women. There were no statistically significant difference of PaCO, among first trimester. second trimester and third trimester of pregnant women. Similarly, there were no statistically significant difference of RR between first trimester and second trimester of pregnant women. It may be concluded from the study that the progressively decreased PaCO• and increased RR throughout Me pregnancy were most likely MP be related to the effect of progesterone-induced hyperventilation. Hypermfilation in pregnancy is due to hypersensitivity of respiratory centre. Due to hyperventilation there is expel out of CO, miming decrease in PaC0r and increase in RR during pregnancy.


Author(s):  
Dipok Kumar Sunyal ◽  
Md Ruhul Amin ◽  
Abida Ahmed ◽  
Mir Rabaya Akhter ◽  
Golam Morshed Molla ◽  
...  

In the present study the partial pressure of oxygen (PaO2), carbon dioxide (PaCO2) and bicarbonate ion (HCO3-) in arterial blood were estimated in 32 women in Dhaka city. For this purpose a total of 32 women subjects with age ranged from 25 years to 35 years without any recent history of respiratory diseases were selected. Of those, 8 healthy non-pregnant women were included as control and 24 normal pregnant women as experimental group. The PaO2, PaCO2 and HCO3- were estimated during the first, second and third trimester by using 'easy blood gas auto analyzer'. The PaO2 was significantly higher during entire pregnancy period. However, the PaCO2 and HCO3- were significantly lower in first, second and third trimester of pregnant women than that of non-pregnant women. There were no statistically significant difference of PaO2, PaCO2 and HCO3- ion among first trimester, second trimester and third trimester. The progressively increased PaO2, decreased PaCO2 and HCO3- ion throughout the pregnancy is possibly due to the effect of progesterone causing hyperventilation. DOI: 10.3329/bjpp.v23i1.5724Bangladesh J Physiol Pharmacol 2007; 23(1&2) : 10-12


2007 ◽  
Vol 9 (Number 2) ◽  
pp. 21-25
Author(s):  
D K Sunyal ◽  
Md. R Amin ◽  
M H Molla ◽  
A Ahmed ◽  
S Begum ◽  
...  

In the present study. Forced Vital Capacity (PVC) suit estimated in 100 women in Dingo city. For this purpose a total 100 women subjects with age ranged from 25 years to 35 years withow any recent history of respiratory diseases were selected. 75 normal pregnant women as experimental group and 25 healthy non-pregnant women as control. Eiperintemed group included 25 first trimester. 25 second trimester and 25 third trimester of pregnat women. The FVC was estimated by using a automatic spironteter during the first. second and third trimester of pregnant women and also in non-pregnant control. The mean of the measured values of PVC were analysed statistically. The PVC was significantly lower in third trimester of pregnant women than that of non-pregnant women. Again the FVC was significantly haver he third trimester than that of first trimester of pregnant women. There were no statistically significant difference of PVC bentren the nonpregnant and first trimester: ',email the non-pregnant and second trimester; henveen the first trimester and second trimester: and between the second ',integer and third trimester of pregnant women. h may be concluded dun the causes of progressively decreased FVC throughout the pregnancy were most likely to he mechanical effects of progressively increasing uterus that progressively decrease the hum rolume capacity.


1970 ◽  
Vol 1 ◽  
pp. 10-13
Author(s):  
DK Sunyal ◽  
MR Amin ◽  
MH Molla ◽  
A Ahmed ◽  
S Ferdousi ◽  
...  

Objective: Percentage saturation of hemoglobin with oxygen in arterial blood (SaO2) was studied in pregnant women to evaluate the lung function status in pregnancy. Methods: This study was conducted in the department of physiology in Dhaka medical college during July 2004 to June 2005. For this purpose total 32 women with age ranged 25-35 years without any recent history of respiratory diseases were selected from Dhaka city. Eight (8) age matched apparently healthy women was taken as control and Twenty four (24) normal pregnant women without any complication were included in experimental group. All pregnant subjects were studied during first, second and third trimester. SaO2 was determined by “Easy Blood Gas Auto Analyzer”. SaO2 during different trimesters were compared with that of non pregnant and also among the trimesters. Statistical analysis was done by students unpaired ‘t’ test. Result: Mean ±SD SaO2 during first trimester (97.73%±0.92), second trimester (98.05%±0.54) and third trimester (98.40%±0.30) were progressively increasing and were significantly higher (p<0.05, p<0.001, p<0.001) than that of non pregnant women (96.71±0.63). But no statistically significant differences were observed among the trimesteric values. The present result indicates increased lung function in pregnant women associated with progressively increased oxygen saturation with trimester. Higher progesterone level is related to increased ventilation which is more marked in luteal phase of menstrual cycle. In pregnant women gradually rising progesterone level reaches its peak at the later part of pregnancy. Conclusion: Therefore it may be concluded from the present study that progressively increased SaO2 might be related to hyperventilation induced by high progesterone level. Key words: Pregnant women, trimester, progesterone J Bangladesh Soc Physiol. 2006 Dec;(1):10-13.


Author(s):  
Nazlıhan Boyacı ◽  
Sariyya Mammadova ◽  
Nurgül Naurizbay ◽  
Merve Güleryüz ◽  
Kamil İnci ◽  
...  

Background: Transcutaneous partial pressure of carbon dioxide (PtCO2) monitorization provides a continuous and non-invasive measurement of partial pressure of carbon dioxide (pCO2). In addition, peripheral oxygen saturation (SpO2) can also be measured and followed by this method. However, data regarding the correlation between PtCO2 and arterial pCO2 (PaCO2) measurements acquired from peripheric arterial blood gas is controversial. Objective: We aimed to determine the reliability of PtCO2 with PaCO2 based on its advantages, like non-invasiveness and continuous applicability. Methods: Thirty-five adult patients with hypercapnic respiratory failure admitted to our tertiary medical intensive care unit (ICU) were included. Then we compared PtCO2 and PaCO2 and both SpO2 measurements simultaneously. Thirty measurements from the deltoid zone and 26 measurements from the cheek zone were applied. Results: PtCO2 could not be measured from the deltoid region in 5 (14%) patients. SpO2 and pulse rate could not be detected at 8 (26.7%) of the deltoid zone measurements. Correlation coefficients between PtCO2 and PaCO2 from deltoid and the cheek region were r: 0,915 and r: 0,946 (p = 0,0001). In comparison with the Bland-Altman test, difference in deltoid measurements was -1,38 ± 1,18 mmHg (p = 0.252) and in cheek measurements it was -5,12 ± 0,92 mmHg (p = 0,0001). There was no statistically significant difference between SpO2 measurements in each region. Conclusion: Our results suggest that PtCO2 and SpO2 measurements from the deltoid region are reliable compared to the arterial blood gas analysis in hypercapnic ICU patients. More randomized controlled studies investigating the effects of different measurement areas, hemodynamic parameters, and hemoglobin levels are needed.


2020 ◽  
Vol 26 (1) ◽  
Author(s):  
Ahmed Tijani Bawah ◽  
Francis Agyemang Yeboah ◽  
Salifu Nanga ◽  
Huseini Alidu ◽  
Robert A. Ngala

Abstract Background This study was aimed at determining the levels of serum adiponectin, leptin, resistin, visfatin and lipids during the first trimester in pregnant women and to evaluate the relationship between these biochemical markers and preeclampsia (PE). Available evidence point to changes in the levels of these adipokines in PE hence this study examined the potential of using these biomarkers in the prediction of the disease. Methods This was a case-control study which compared first trimester serum biochemical and anthropometric parameters in pregnant women who subsequently developed PE and those who did not. Blood pressure and urine protein were determined after 20 weeks of gestation and diagnosis of PE performed according to the guidelines of the American Heart Association. Results There was no significant difference (p > 0.05) in the lipid profile with the exception of HDL cholesterol which was significantly lower (p = 0.043) in the PE group compared to the normotensive group. There were, however, significant differences (p <  0.05) in the adipokines between the PE group and those without PE. Analyses of area under the receiver operating characteristic curves (AUCs) for the adipokines, showed their ability to correctly predict PE even after controlling for body mass index (BMI) and family history of hypertension. Conclusion Adiponectin, leptin, resistin and visfatin were found to be significant predictors of PE, with resistin being the best predictor after controlling for BMI. However, adiponectin was the best predictor after controlling for BMI, age, parity and family history of diabetes and preeclmapsia.


Author(s):  
Santhini Gopalakrishnan Sethulekshmi ◽  
S Sumathy ◽  
Banani Dutta

Introduction: Pregnancy is a period that is characterised by remarkable physiological changes which are needed to support the growing fetus. Micronutrients play a crucial role in the maintenance of pregnancy. Among the micronutrients, magnesium has got ample amount of clinical relevance to pregnancy. Magnesium deficiency has been associated with reproductive risk during pregnancy such as anaemia, pre-eclampsia, eclampsia, fetal growth retardation, preterm labour, low intrauterine growth rate and leg cramps. Aim: To find out whether there was significant difference in the magnesium levels among pregnant women with and without pregnancy related complications and also to find out whether the magnesium levels differed significantly among the three trimesters. Materials and Methods: This was a cross-sectional study done among 240 pregnant patients from different trimesters attending the Obstetrics and Gynaecology Outpatient Department. Out of them 164 women had complications like pre-eclampsia, Gestational Diabetes Mellitus, leg cramps and history of abortions. Demographic details were obtained from all the women. BMI was calculated for each subject using the formula BMI=weight(kg)/height(m2). Haemoglobin was assessed in all samples using cyanmethaemoglobin method. Magnesium levels were analysed in the all samples using automated analyser in the Biochemistry laboratory. Student’s t-test was used to compare the levels of magnesium among the groups with and without complications. ANOVA test was used to compare the three trimesters. Results: The pregnant women were divided into three groups based on the different trimesters in which the samples were taken. Magnesium levels among the women in the first trimester were (2.96±0.83) second trimester (2.99±1.48) and third trimester (3.05±1.48) respectively. Women with previous abortions were found to have less magnesium levels (2.71) compared to women without a history of abortion (3.11) and value was found to be statistically significant (p<0.007) and magnesium levels among vegetarians (2.45) were lower than non vegetarians (3.08) and it was found to be statistical significant (p<0.013). There was no significant difference in the magnesium levels among pregnant women with complications and those without complications. Conclusion: The study shows the importance of maintaining the magnesium levels among pregnant women. There was no difference in the magnesium levels among the three trimesters. Study also points out the influence of parity, diet and occupation of pregnant women on the levels of magnesium.


2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Aili Peng ◽  
Litao Guo ◽  
Jing Xu ◽  
Jingrong Fan

Objective — To compare the effects of two prone position ventilation methods on children with respiratory failure, to obtain a safer and more effective way to guide clinical nursing work. Methods — 48 cases of children who were admitted to the intensive care unit of our hospital from February 2018 to August 2019 and applied mechanical ventilation were divided into groups based on a random number table. The odd numbers were included in the experimental group (continuous prone position ventilation group, the duration of continuous prone position exceeded 12 hours, a total of 25 cases). The even numbers were included in the control group (intermittent prone position ventilation group, prone position for 3 hours at a time, alternating with supine position and lateral position, total prone position duration 12 hours, a total of 23 cases). Oxygenation index (OI), PH value, arterial partial pressure of carbon dioxide (PCO2), arterial partial pressure of oxygen (PO2) at 24h, 48h, 72h of the two groups of children, as well as their ventilator use time and ICU hospital stay were compared. Results — Continuous prone position ventilation and intermittent prone position ventilation have no statistical significance on arterial blood carbon dioxide partial pressure (PaCO2), arterial blood oxygen partial pressure (PaO2), ventilator duration, ICU length of stay in children with respiratory failure (P>0.05), but with the increase of the total length of the prone position, when reaching more than 36 hours, the trend of oxygenation index (OI) of the experimental group and the control group can be seen to decline.  Conclusion — In this study, by comparing the effects of two prone position ventilation modes, it was found that intermittent prone position ventilation and continuous prone position ventilation had no difference in the treatment of children with respiratory failure. When children are treated in continuous prone and intermittent prone positions, the total prone position can last up to 36 hours, which can effectively improve the clinical treatment effect. In view of the characteristics of pediatric patients and the difficulty in nursing critically ill patients with tracheal intubation, it is recommended that pediatric patients can use intermittent prone ventilation to complete treatment when the cumulative time in the prone position reaches more than 36 hours.


2014 ◽  
Vol 22 (6) ◽  
pp. 893-901 ◽  
Author(s):  
Adriana de Souza Caroci ◽  
Maria Luiza Gonzalez Riesco ◽  
Bianca Moraes Camargo Rocha ◽  
Letícia de Jesus Ventura ◽  
Sheyla Guimarães Oliveira

OBJECTIVES: to analyze the Pelvic Floor Muscle Strength (PFMS) of pregnant women with one or more vaginal or cesarean deliveries; to compare the PFMS of these with pregnant women with the PFMS of primiparous women.METHODS: cross-sectional study with women up to 12 weeks pregnant, performed in Itapecerica da Serra, São Paulo state, from December 2012 to May 2013. The sample consisted of 110 pregnant women with one or more vaginal deliveries or cesarean sections and 110 primigravidae. The PFMS was evaluated by perineometry (Peritron(tm)) and vaginal digital palpation (modified Oxford scale).RESULTS: the average PFMS in pregnant women with a history of vaginal delivery or cesarean section was 33.4 (SD=21.2) cmH2O. From the Oxford scale, 75.4% of the pregnant women with previous vaginal or cesarean deliveries presented grade ≤ 2, and 5.5% grade ≥ 4; among the primiparae, 39.9% presented grade ≤ 2, and 50.9% grade ≥ 4, with a statistically significant difference (p<0.001). From the perineometry, there was no statistically significant difference between the PFMS and age, type of delivery, parity, body mass index, and genitourinary tract symptoms, however, there was a statistically significant difference between the pregnant women with and without a history of episiotomy (p=0.04). In the palpation, none of the variables showed a statistically significant difference.CONCLUSION: pregnancy and childbirth can reduce the PFMS.


2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Farokh Saljughi ◽  
Mitra Savabi-Esfahani ◽  
Shahnaz Kohan ◽  
Soheila Ehsanpour

Mother-infant attachment is an intimate, lasting and satisfying relationship that leads to better cognitive, emotional and social growth of the infant. The aim of this study was to determine the effects of breastfeeding training by role-play on mother-infant attachment behaviours. This research was a randomised clinical trial (parallel design). Inclusion criteria were: no history of mental disorders; ability to read and write the Persian language to complete the questionnaire; no history of drug and tobacco intake in primigravida women. The sample comprised 100 pregnant women (in 2 groups), selected through simple random sampling at healthcare centres. The researcher reviewed prenatal care registries of selected healthcare centres and extracted the names of pregnant women in their early third trimester. The data were imported into randomisation software. The control group received routine breastfeeding training, while the intervention group received routine training together with training through role-play. The data collection tool was the Maternal Behaviour Inventory Questionnaire. Consequently 75 samples were analysed in SPSS16. Independent t-tests and chi-square tests were used to examine the difference between the two groups. Results showed that the mean score of mother-infant attachment one week after delivery was significantly higher in the intervention group in comparison to that in the control group (p<0.001). No significant difference was observed between the two groups in maternal age, age of marriage, neonatal gender, maternal employment and education, number of parity, and number of abortions (P>0.05). Since breastfeeding training through role-play could affect mother-infant attachment, it is suggested that this type of training should be provided for pregnant women to promote mother-infant attachment and exclusive breastfeeding.


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