scholarly journals Perbandingan Nilai PETCO2 dan PACO2 pada Pasien dengan Pemasangan Ventilasi Mekanik

1970 ◽  
Vol 4 (1) ◽  
Author(s):  
Baskoro Soetioputro ◽  
F. Sri Susilaningsih ◽  
Titin Mulyati

Pasien dengan ventilasi mekanik perlu dilakukan pemantauan CO2 karena berperan penting pada regulasi pernapasan dan keseimbangan asam-basa tubuh. Pemantauan CO2 dapat dilakukan dengan mengukur PaCO2 melalui analisis gas darah arteri. Pengukuran PaCO2 tidak dapat dilakukan secara kontinu sehingga perlu sering dilakukan pengambilan darah arteri yang dapat menimbulkan komplikasi. Pengukuran PETCO2 dapat memantau CO2 secara kontinu dan non invasif. PETCO2 adalah tekanan parsial CO2 ekspirasi yang diukur pada saat akhir volume tidal pernapasan. Penelitian ini bertujuan membandingkan nilai PETCO2 dan PaCO2 pada pasien dengan ventilasi mekanik di ruang GICU RSUP Dr. Hasan Sadikin Bandung. Rancangan penelitian yang digunakan adalah prospective cross sectional. Pemilihan sampel dilakukan secara consecutive sampling. Penelitian dilakukan terhadap 21 pasien yang menggunakan ventilasi mekanik di ruang GICU RSUP Dr. Hasan Sadikin Bandung. Data PETCO2 dicatat pada saat perawat mengambil sampel darah arteri untuk pemeriksaan analisis gas darah. Didapatkan 122 pasang data nilai PETCO2 dan PaCO2. Data yang diperoleh dianalisis dengan Bland-Altman plot. Hasil penelitian nilai PETCO2 berada pada rentang 14-67 mmHg dan nilai PaCO2 berada pada rentang 17-77 mmHg. Bias nilai PETCO2 dan PaCO2 adalah -4,6475 mmHg lebih rendah daripada estimasi nilai bias ±5 mmHg sehingga bisa diterima secara klinik. Presisi nilai PETCO2 adalah 12,7969 mmHg (limit of agreement= 1,7509; -11,0460) lebih tinggi daripada estimasi nilai presisi ±5 mmHg sehingga tidak bisa diterima secara klinik. Kesimpulan dari penelitian ini adalah pengukuran PETCO2 tidak dapat menggantikan pengukuran PaCO2, tetapi pengukuran PETCO2 dapat digunakan untuk memperkirakan nilai PaCO2 pasien dengan ventilasi mekanik.Kata kunci: PETCO2, PaCO2, ventilasi mekanik. Comparison of PETCO2 and PACO2 Values in Patients with Mechanical VentilationAbstractPatients with mechanical ventilation need to be monitored for the CO2 value because it has an important role in regulation of respiration and body acid-base equilibrium. Monitoring of CO2 can be done by measuring PaCO2 through arterial blood gas analysis. Measurement of PaCO2 could not be done continuously so that the arterial blood are needed to be taken quite often which could cause complication. The measurement of PETCO2 can monitor the CO2 continuously and non-invasively. PETCO2 is partial pressure of CO2 expiration that is measured at the end of respiration tidal volume. This study aimed to compare the PETCO2 value and PaCO2 in patients with mechanical ventilation in GICU Dr. Hasan Sadikin Hospital. The research design was prospective cross-sectional using consecutive sampling method. The total sample was 21 patients who used mechanical ventilator in GICU Dr. Hasan Sadikin Hospital Bandung. The PETCO2 data were recorded when the patients’ arterial blood sample were taken for blood gas analysis test. The total of 122 pair date of PETCO2 and PaCO2 values were recorded. The data were analyzed using Bland-Altman plot. The results showed that the PETCO2 value ranged from 14 – 67 mmHg and the PaCO2 values ranged from 17 – 77 mmHg. The deviation of PETCO2 and PaCo2 was -4.6475 mmHg, which is lower than the estimation of ± 5 mmHg deviation, therefore the PETCO2 measurement can be accepted clinically. The precision of PETCO2 was 12.7969 mmHg (limit of agreement = 1.7509; -11.0460) which is higher than the estimation of precision value of ±5 mmHg, therefore it cannot be accepted clinically. In conclusion, the PETCO2 measurement could not replace the PaCO2 measurement, however, PETCO2 measurement can be used to predict the value of PaCO2 for patients with mechanical ventilation.Keywords: Mechanical ventilation, PETCO2, PaCO2.

Author(s):  
Phey Liana ◽  
Iza Netiasa Haris ◽  
Yan Effendi Hasyim

The use of blood gas analysis is to determine the Acid-base status required to treat patients with emergency conditionssuch as metabolic disorders and respiratory diseases. Benchtop device is commonly used in hospitals to analyze blood gas;however, handheld devices are recently more often used in emergency settings due to its quick and simple process. Thisstudy was performed to compare blood gas analysis results between the i-STAT handheld device and the Nova pHox Ultrabenchtop device that were currently being used in the central laboratory. This cross-sectional study was conducted by using42 arterial blood patients that were measured with i-STAT handheld device dan Nova pHox Ultra benchtop device. The pH,pCO2, and pO2 parameters were then evaluated. The data were analyzed using Spearman's correlation test, Mann-Whitneytest, and Bland-Altman plots. This study showed a very strong positive correlation for all parameters. Mann-Whitneycomparison test showed that there was no significant difference between the result of the two devices (p-value > 0.05). Allparameters showed that 95% of plots were within the acceptable limit. There was no clinical significance on the mean biasesof blood gas results between both devices. The i-STAT and Nova pHox Ultra devices showed a good agreement for bloodgas measurement. Therefore, both devices can be used interchangeably with minimal effect on clinical decision-making.


2016 ◽  
Vol 43 (6) ◽  
pp. 211
Author(s):  
Srie Yanda ◽  
Munar Lubis ◽  
Yoyoh Yusroh

Background Arterial blood gas is usually beneficial to discern thenature of gas exchange disturbances, the effectiveness of com-pensation, and is required for adequate management. AlthoughPaO 2 is the standard measurement of blood oxygenation, oxygensaturation measured by pulse oximetry (SapO 2 ) is now a custom-ary noninvasive assessment of blood oxygenation in newborn in-fants.Objective To compare oxygen saturation measured by pulse oxi-metry (SapO 2 ) and arterial blood gas (SaO 2 ), its correlation withother variables, and to predict arterial partial pressure of oxygen(PaO 2 ) based on SapO 2 values.Methods A cross sectional study was conducted on all neonatesadmitted to Pediatric Intensive Care Unit (PICU) during February2001 to May 2002. Neonates were excluded if they had impairedperipheral perfusion and/or congenital heart defects. Paired t-testwas used to compare SapO 2 with SaO 2 . Correlation between twoquantitative data was performed using Pearson’s correlation. Re-gression analysis was used to predict PaO 2 based on SapO 2 val-ues.Results Thirty neonates were included in this study. The differ-ence between SaO 2 and SapO 2 was significant . There were sig-nificant positive correlations between heart rate /pulse rate andTCO 2 , HCO 3 ; respiratory rate and TCO 2 , HCO 3 , base excess (BE);core temperature and HCO 3 , BE; surface temperature and pH,TCO 2, HCO 3, BE; SapO 2 and pH, PaO 2 ; and significant negativecorrelation between SapO 2 and PaCO 2 ; the correlations were weak.The linear regression equation to predict PaO 2 based on SapO 2values was PaO 2 = -79.828 + 1.912 SapO 2 .Conclusion Pulse oximetry could not be used in place of arterialblood gas analysis available for clinical purpose


2018 ◽  
Vol 96 (2) ◽  
pp. 152-157
Author(s):  
Elena A. Borodulina ◽  
G. Yu. Chernogayeva ◽  
B. E. Borodulin ◽  
E. S. Vdoushkina ◽  
L. V. Povalyaeva ◽  
...  

The purpose of study is the optimization of the choice of method of respiratory support in patients with severe community-acquired pneumonia (CAP) on admission to intensive care unit (ICU) on the basis of acid-alkaline indicators and arterial blood gas analysis. Material and methods. Depending on the method of the choice of respiratory support two groups of 350 people were formed. The first group (n = 350) - by the results of pulse oximetry (SatO2). The second group (n = 350) - in terms of acid-base and arterial blood gas analysis (pH, PO2, PCO2). To determine hypoxemia, pulse oximetry (heart monitor GOLDWAY G40), acid-alkali and gas composition of arterial blood (gas analyzer «MEDICA EasyStat») were used. In the ICU there were conducted three types of respiratory support: 1) oxygen therapy via orinasal mask 2) non-invasive mechanical ventilation (respirators «VENTimotion 2» and «Bipap Vision») 3) mechanical ventilation («Engstrom Carestation»). The criterion of effectiveness: recovery performance pulse oximetry, acid-base balance, and arterial blood gas analysis, the presence of positive clinical dynamics. Results. Choice of method of respiratory support in the gas composition of blood allowed to expand the indications for use NIV as a method of respiratory support in the treatment of patients with severe CAP, to ensure timely transfer and reduce the time finding patients on mechanical ventilation, to avoid damage due to hypoxia bodies - «target» with the development of multiple organ failure, and thus 4.3 times to reduce mortality and length of stay in the ICU of 1.7.


2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Ahmad Yaraghi ◽  
Nastaran Eizadi-Mood ◽  
Maryam Katani ◽  
Shadi Farsaei ◽  
Mahrang Hedaiaty ◽  
...  

Background. Poisoning with tricyclic antidepressants (TCAs) is still a major concern for emergency physicians and intensivists. Concomitant ingestion of other psychoactive drugs especially benzodiazepines with TCAs may make this clinical situation more complex. This study aimed to compare the arterial blood gas (ABG) values and the outcome of treatment in patients with coingestion of TCA and benzodiazepine (TCA + BZD) poisoning and TCA poisoning alone.Methods. In this cross-sectional study which was carried out in a tertiary care university hospital in Iran, clinical and paraclinical characteristics of one hundred forty TCA only or TCA + BZD poisoned patients (aged 18–40 years) were evaluated. ABG analysis was done on admission in both groups. Outcomes were considered as survival with or without complication (e.g., intubation) and the frequency of TCA poisoning complications.Results. Arterial pH was significantly lower in TCA + BZD poisoning group compared with TCA only poisoning group (7.34 ± 0.08 and 7.38 ± 0.08, resp.;P=0.02). However, other complications such as seizure, and the need for the endotracheal intubation were not significantly different. All patients in both groups survived.Conclusions. Concomitant TCA plus BZD poisoning may make the poisoned patients prone to a lower arterial pH level on hospital admission which may potentially increases the risk of cardiovascular complications in TCA poisoning.


2016 ◽  
Vol 44 (6) ◽  
pp. 1376-1380 ◽  
Author(s):  
Hatice Türe ◽  
Özgül Keskin ◽  
Ülkem Çakır ◽  
Canan Aykut Bingöl ◽  
Uğur Türe

Objective We planned a cross-sectional analysis to determine the frequency and severity of metabolic acidosis in patients taking topiramate while awaiting craniotomy. Methods Eighty patients (18 – 65 years) taking topiramate to control seizures while awaiting elective craniotomy were enrolled. Any signs of metabolic acidosis or topiramate-related side effects were investigated. Blood chemistry levels and arterial blood gases, including lactate, were obtained. The severity of metabolic acidosis was defined according to base excess levels as mild or moderate. Results Blood gas analysis showed that 71% ( n = 57) of patients had metabolic acidosis. The frequency of moderate metabolic acidosis was 56% ( n = 45), while that of mild metabolic acidosis was 15% ( n = 12). A high respiratory rate was reported in only 10% of moderately acidotic patients. Conclusions In patients receiving topiramate, baseline blood gas analysis should be performed preoperatively to determine the presence and severity of metabolic acidosis.


Author(s):  
Elisabetta Colciago ◽  
Simona Fumagalli ◽  
Elena Ciarmoli ◽  
Laura Antolini ◽  
Antonella Nespoli ◽  
...  

Abstract Purpose Delayed cord clamping for at least 60 s is recommended to improve neonatal outcomes. The aim of this study is to evaluate whether there are differences in cord BGA between samples collected after double clamping the cord or without clamping the cord, when blood collection occurs within 60 s from birth in both groups. Methods A cross-sectional study was carried out, collecting data from 6884 high-risk women who were divided into two groups based on the method of cord sampling (clamped vs unclamped). Results There were significant decrease in pH and BE values into unclamped group compared with the clamped group. This difference remained significant when considering pathological blood gas analysis parameters, with a higher percentage of pathological pH or BE values in the unclamped group. Conclusion Samples from the unclamped cord alter the acid–base parameters compared to collection from the clamped cord; however, this difference does not appear to be of clinical relevance. Findings could be due to the large sample size, which allowed to achieve a high power and to investigate very small numerical changes between groups, leading to a statistically significant difference in pH and BE between samples even when we could not appreciate any clinical relevant difference of pH or BE between groups. When blood gas analysis is indicated, the priority should be given to the timing of blood collection to allow reliable results, to assess newborns status at birth and intervene when needed.


2021 ◽  
pp. 039139882098785
Author(s):  
Lawrence Garrison ◽  
Jeffrey B Riley ◽  
Steve Wysocki ◽  
Jennifer Souai ◽  
Hali Julick

Measurements of transcutaneous carbon dioxide (tcCO2) have been used in multiple venues, such as during procedures utilizing jet ventilation, hyperbaric oxygen therapy, as well as both the adult and neo-natal ICUs. However, tcCO2 measurements have not been validated under conditions which utilize an artificial lung, such cardiopulmonary bypass (CPB). The purpose of this study was to (1) validate the use of tcCO2 using an artificial lung during CPB and (2) identify a location for the sensor that would optimize estimation of PaCO2 when compared to the gold standard of blood gas analysis. tcCO2 measurements ( N = 185) were collected every 30 min during 54 pulsatile CPB procedures. The agreement/differences between the tcCO2 and the PaCO2 were compared by three sensor locations. Compared to the earlobe or the forehead, the submandibular PtcCO2 values agreed best with the PaCO2 and with a median difference of –.03 mmHg (IQR = 5.4, p < 0.001). The small median difference and acceptable IQR support the validity of the tcCO2 measurement. The multiple linear regression model for predicting the agreement between the submandibular tcCO2 and PaCO2 included the SvO2, the oxygenator gas to blood flow ratio, and the native perfusion index ( R2 = 0.699, df = 1, 60; F = 19.1, p < 0.001). Our experience in utilizing tcCO2 during CPB has demonstrated accuracy in estimating PaCO2 when compared to the gold standard arterial blood gas analysis, even during CO2 flooding of the surgical field.


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