scholarly journals Comparison of high-flow nasal oxygen cannula therapy versus a standard oxygen face mask in patients with hypostatic pneumonia

2021 ◽  
Vol 49 (6) ◽  
pp. 030006052110222
Author(s):  
Yamei Song ◽  
Jinchao Zhang ◽  
Jia Xing ◽  
Ning Wang ◽  
Jing Wang
Keyword(s):  
Adverse Events ◽  
Partial Pressure ◽  
Clinical Symptoms ◽  
Gas Analysis ◽  
High Flow ◽  
Clinical Effects ◽  
Arterial Blood Gas ◽  
Arterial Blood ◽  
Oxygen Mask ◽  
Dyspnea Score

Objective We assessed the clinical effects of high-flow nasal cannula (HFNC) oxygen therapy and a standard oxygen atomizer mask on the respiratory tract in patients with hypostatic pneumonia. Methods We included patients with hypostatic pneumonia in this retrospective cohort study. Patients were provided continuous airway humidification by continuous oxygen atomization using either an HFNC or standard oxygen mask. Arterial blood gas analysis, the dyspnea score, inflammatory-related parameters, and adverse events of patients in the two groups were compared. Results Fifty-five patients had HFNC delivery and 57 had a standard oxygen atomizer mask. After 7 days of treatment, patients in the HFNC group had a higher partial pressure of arterial blood oxygen/fraction of inspired oxygen ratio (268.12±28.44 vs 238.28±30.04) and lower partial pressure of arterial blood carbon dioxide (38.02±8.84 vs 49.27±7.84 mmHg) than those in the standard oxygen mask group. The dyspnea score and inflammatory-related parameters in the HFNC group were significantly lower than those in the standard oxygen mask group. The incidence of adverse events was lower in the HFNC group than in the standard oxygen mask group. Conclusion HFNC therapy relieves clinical symptoms more quickly than a standard oxygen mask and reduces the incidence of adverse events.

scholarly journals Meta-Analysis of Clinical Efficacy and Safety of Ligustrazine in the Treatment of Idiopathic Pulmonary Fibrosis

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Xiaozheng Wu ◽  
Wen Li ◽  
Zhenliang Luo ◽  
Yunzhi Chen
Keyword(s):  
Idiopathic Pulmonary Fibrosis ◽  
Pulmonary Fibrosis ◽  
Clinical Efficacy ◽  
Adverse Reactions ◽  
Clinical Symptoms ◽  
Gas Analysis ◽  
Control Group ◽  
Efficacy And Safety ◽  
Arterial Blood Gas ◽  
Arterial Blood

Objective. To systematically review the efficacy and safety of Ligustrazine in the treatment of idiopathic pulmonary fibrosis (IPF). Methods. The electronic literature databases (PubMed, EMbase, CNKI, WanFang database, and VIP) were retrieved through a computer to find out the randomized controlled trials (RCT) of Ligustrazine in the treatment of IPF according to the inclusion/exclusion criteria screening test. Cochrane’s bias risk table was also used to evaluate the quality of the study and to extract effective data. RevMan 5.3 was used for statistical analysis. Results. A total of 7 RCTs (a total of 366 patients, including 196 in experimental and 170 in control group). Compared with the control group, Ligustrazine could improve the clinical symptoms ([OR] = 2.20, 95% CI [1.40, 3.46], P = 0.0006 ), lung function (VC % [MD] = 3.92, 95% CI [0.68, 7.17], P = 0.02 ), (TLC% [MD] = 4.94, 95% CI [0.37, 9.52], P = 0.03 ), the pulmonary diffusion function (DLCO % [MD] = 9.12, 95% CI [5.70, 12.55], P < 0.00001 ), and arterial blood gas analysis (PaO2 [MD] = 7.11, 95% CI [1.96, 12.25], P = 0.007 ) (PaCO2 [MD] = −2.42, 95% CI [−4.36, −0.49], P = 0.01 ) of IPF patients, respectively. However, FEV1/FVC % ([MD] = 9.37, 95% CI [−1.23, 19.97], P = 0.08 ) and adverse reactions ([MD] = 0.35, 95% CI [0.02, 5.36], P = 0.45 ) were not significantly improved. Conclusion. Ligustrazine has certain clinical efficacy in the treatment of IPF, but the safety of applying it and the adverse reactions need to be further analyzed and determined. It can be considered as a new alternative and complementary medicine to be promoted and recommended for use in medical units in various countries in the world and it solved the difficult problem of conventional drug treatment of IPF; therefore, more research strength can be put in the treatment of the pathological mechanism of IPF for further exploration. The study was registered under registration number CRD42020193626.

scholarly journals Residual Lung Function Impairment Is Associated with Hyperventilation in Patients Recovered from Hospitalised COVID-19: A Cross-Sectional Study

2021 ◽  
Vol 10 (5) ◽  
pp. 1036
Author(s):  
Ernesto Crisafulli ◽  
Daniele Gabbiani ◽  
Giulia Magnani ◽  
Gianluigi Dorelli ◽  
Fabiana Busti ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Lung Function ◽  
Clinical Symptoms ◽  
Gas Analysis ◽  
Cross Sectional ◽  
Arterial Blood Gas ◽  
Persistent Symptoms ◽  
Arterial Blood ◽  
Function Impairment ◽  
Lung Function Impairment

Patients who have recovered from COVID-19 show persistent symptoms and lung function alterations with a restrictive ventilatory pattern. Few data are available evaluating an extended period of COVID-19 clinical progression. The RESPICOVID study has been designed to evaluate patients’ pulmonary damage previously hospitalised for interstitial pneumonia due to COVID-19. We focused on the arterial blood gas (ABG) analysis variables due to the initial observation that some patients had hypocapnia (arterial partial carbon dioxide pressure-PaCO2 ≤ 35 mmHg). Therefore, we aimed to characterise patients with hypocapnia compared to patients with normocapnia (PaCO2 > 35 mmHg). Data concerning demographic and anthropometric variables, clinical symptoms, hospitalisation, lung function and gas-analysis were collected. Our study comprised 81 patients, of whom 19 (24%) had hypocapnia as compared to the remaining (n = 62, 76%), and defined by lower levels of PaCO2, serum bicarbonate (HCO3−), carbon monoxide diffusion capacity (DLCO), and carbon monoxide transfer coefficient (KCO) with an increased level of pH and arterial partial oxygen pressure (PaO2). KCO was directly correlated with PaCO2 and inversely with pH. In our preliminary report, hypocapnia is associated with a residual lung function impairment in diffusing capacity. We focus on ABG analysis’s informativeness in the follow-up of post-COVID patients.

Clinical Effects of the Suicide Attempt with Topiramate

2017 ◽  
Vol 41 (S1) ◽  
pp. S150-S150
Author(s):  
G. Montero ◽  
I. Alberdi ◽  
L. Niell ◽  
R.Á. Baena
Keyword(s):  
Metabolic Acidosis ◽  
Suicide Attempt ◽  
Suicide Attempts ◽  
Plasma Concentrations ◽  
Gastric Lavage ◽  
Acute Poisoning ◽  
Gas Analysis ◽  
Clinical Effects ◽  
Arterial Blood Gas ◽  
Arterial Blood

ObjectivesWe report the case of a 45-year-old male diagnosed with mixed personality disorder brought the hospital for strange behavior. He is being treated with fluoxetine, lorazepam and topiramate; and visited his psychiatrist 72 hours ago.ResultsHe has an adequate level of consciousness and describes retrograde amnesia of the last 72 hours. We found blocks of thought and abnormal behaviors such as dressing and undressing or sorting his belongings repetitively. Urine was only positive for benzodiazepines. In arterial blood gas analysis it performed highlights compensated metabolic acidosis. After ruling out neurological diseases and administrating fluids i.v. the symptoms remitted, persisting only the amnesia, establishing the diagnosis of suicide attempt with topiramate.ConclusionsThe use out-of-guidelines of topiramate in personality and eating disorders is an increasingly common habit in daily clinical practice, as well as suicide attempts with this drug. In therapeutic doses, over 40% of patients taking topiramate, have asymptomatic metabolic acidosis, which in stressful situations may have clinical relevance. In case of acute poisoning, metabolic acidosis is more frequent and severe, manifesting itself by hyperventilation, hypertension and varying degrees of impaired consciousness and cognitive functions. There is also a paradoxical increase in the frequency of seizures. Treatment is supportive and there is no antidote, being lethal cases exceptional. Gastric lavage and administration of activated charcoal have limited use. The determination of plasma concentrations of topiramate is not available for most centers and is not useful in acute poisoning.

scholarly journals The Use of Transnasal Humidified Rapid-Insufflation Ventilatory Exchange (THRIVE) for Pre-Oxygenation in Neurosurgical Patients: A Randomised Controlled Trial

2018 ◽  
Vol 46 (4) ◽  
pp. 360-367 ◽  
Author(s):  
I. Ng ◽  
R. Krieser ◽  
P. Mezzavia ◽  
K. Lee ◽  
C. Tseng ◽  
...  
Keyword(s):  
Partial Pressure ◽  
Controlled Trial ◽  
Rapid Sequence Induction ◽  
Gas Analysis ◽  
Carbon Dioxide Partial Pressure ◽  
Arterial Blood Gas ◽  
Arterial Blood ◽  
Neurosurgical Patients ◽  
Complete Paralysis ◽  
Apnoeic Oxygenation

This study explored the use of high-flow nasal oxygen (HFNO) in both pre-oxygenation and apnoeic oxygenation in adults who were intubated following a non–rapid sequence induction. Fifty patients were randomised to receive pre-oxygenation via a standard facemask or the Transnasal Humidified Rapid-Insufflation Ventilatory Exchange (THRIVE) device. After five minutes of pre-oxygenation, induction and muscle relaxant agents were given. While waiting for complete paralysis, patients in the standard facemask group received bag–mask ventilation (BMV), whereas patients in the HFNO group received apnoeic oxygenation via the THRIVE device. Serial blood samples for arterial blood gas analysis were taken. Baseline patient and airway characteristics were similar. The median PaO2 after pre-oxygenation was 357 (interquartile range [IQR] 324–450 [range 183– 550]) mmHg in the facemask group, compared to 471 (IQR 429–516 [range 185–550]) mmHg in the HFNO group (P=0.01). The median arterial partial pressure of oxygen (PaO2) in the HFNO group decreased after a period of apnoeic oxygenation, and was significantly lower when compared to patients who received BMV in facemask group. The arterial carbon dioxide partial pressure (PaCO2) level after complete paralysis was significantly higher in the HFNO group when compared to the facemask group (median 52 [IQR 48–55 {range 40–65}] versus median 43 [IQR 40–48 {range 35–63}] mmHg, P=0.0005 and P=0.004 respectively). There were no differences in the time to muscle paralysis and time to intubation. Seven patients required use of airway adjuncts during BMV in the facemask group, compared to none in the HFNO group (P=0.004). No complications were observed in either group. HFNO produces a higher PaO2 after pre-oxygenation and safe PaO2 during intubation. However, the subsequent fall in PaO2 and rise in PaCO2 indicates that it is not as effective as BMV in maintaining oxygenation and ventilation following neuromuscular blockade.

scholarly journals Apnoeic Oxygenation with High‐Flow Oxygen for Tracheal Resection and Reconstruction Surgery

2021 ◽  
Author(s):  
Nguyen Minh Ly ◽  
Ngo Van Dinh ◽  
Dinh Thi Thu Trang ◽  
Ngo Vi Hai ◽  
Tong Xuan Hung
Keyword(s):  
Gas Exchange ◽  
Tracheal Stenosis ◽  
Blood Gas Analysis ◽  
Gas Analysis ◽  
High Flow ◽  
Tracheal Resection ◽  
Arterial Blood Gas ◽  
Arterial Blood ◽  
High Flow Oxygen ◽  
A Prospective Study

Abstract Background: Tracheal resection and reconstruction are the most effective treatment tracheal stenosis, but the difficulties are surgery and maintaining ventilation performed on the patient's same airway. High‐flow oxygen has begun to be applied prolonging the apnoea time in the tracheal anastomosis period for tracheal resection and reconstruction. This study aims to evaluate the effectiveness of apnoeic conditions with high‐flow oxygen as the sole method of gas exchange during anastomosis construction. Methods: A prospective study was performed on 16 patients with tracheal stenosis, with ages ranging from 19 to 70, underwent tracheal resection and reconstruction from April 2019 to August 2020 in 108 Military Central Hospital. During the anastomosis phase using high flow oxygen of 35-40 L/min delivered across the open tracheal with an endotracheal tube (ETT) at the glottis in apnoeic conditions. Results: The mean (SD) apnoea time was 20.91 (2.53) mins. Mean (SD) time anastomosis was 22.9 (2.41) mins. The saturation of oxygen was stable during all procedures at 98-100%. Arterial blood gas analysis showed mean (SD) was hypercapnia and acidosis acute respiratory after 10 mins of apnoea and 20 mins apnoea respectively. However, after 15 mins of ventilation, the parameters are ultimately returned to normal. All 16 patients were extubated early and safely at the end of the operation. There were no complications, such as bleeding, hemothorax, pneumothorax, or barotrauma.Conclusion: High-flow oxygen across the open tracheal under apnoeic conditions can provide a satisfactory gas exchange to allow tubeless anesthesia for tracheal resection and reconstruction.

Atrial fibrillation associated with carbon monoxide poisoning

2019 ◽  
pp. 203-206
Author(s):  
Mevlut Demir ◽  
◽  
Muslum Sahin ◽  
Ahmet Korkmaz ◽  
◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Carbon Monoxide ◽  
Sinus Rhythm ◽  
Partial Pressure ◽  
Motor Vehicle ◽  
Carbon Monoxide Poisoning ◽  
Venous Blood ◽  
Blood Gas ◽  
Arterial Blood Gas ◽  
Arterial Blood

Carbon monoxide intoxication occurs usually via inhalation of carbon monoxide that is emitted as a result of a fire, furnace, space heater, generator, motor vehicle. A 37-year-old male patient was admitted to the emergency department at about 5:00 a.m., with complaints of nausea, vomiting and headache. He was accompanied by his wife and children. His venous blood gas measures were: pH was 7.29, partial pressure of carbon dioxide (pCO2) was 42 mmHg, partial pressure of oxygen (pO2) was 28 mmHg, carboxyhemoglobin (COHb) was 12.7% (reference interval: 0.5%-2.5%) and oxygen saturation was 52.4%. Electrocardiogram (ECG) examination showed that the patient was not in sinus rhythm but had atrial fibrillation. After three hours the laboratory examination was repeated: Troponin was 1.2 pg/ml and in the arterial blood gas COHb was 3%. The examination of the findings on the monitor showed that the sinus rhythm was re-established. The repeated ECG examination confirmed the conversion to the sinus rhythm. He was monitored with the normobaric oxygen administration.

scholarly journals Analysis of Arterial Blood Gas Values Based on Storage Time Since Sampling: An Observational Study

2021 ◽  
Vol 11 (3) ◽  
pp. 517-521
Author(s):  
Alejandro Montero-Salinas ◽  
Marta Pérez-Ramos ◽  
Fernando Toba-Alonso ◽  
Leticia Quintana-DelRío ◽  
Jorge Suanzes-Hernández ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Observational Study ◽  
Partial Pressure ◽  
Group Analysis ◽  
Initial Time ◽  
Blood Gas ◽  
Initial Sample ◽  
Arterial Blood Gas ◽  
Arterial Blood ◽  
Prospective Longitudinal

Aim. To evaluate the influence of time on arterial blood gas values after artery puncture is performed. Method. Prospective longitudinal observational study carried out with gasometric samples from 86 patients, taken at different time intervals (0 (T0), 15 (T15), 30 (T30) and 60 (T60) min), from 21 October 2019 to 21 October 2020. The study variables were: partial pressure of carbon dioxide, bicarbonate, hematocrit, hemoglobin, potassium, lactic acid, pH, partial pressure of oxygen, saturation of oxygen, sodium and glucose. Results. The initial sample consisted of a total of 90 patients. Out of all the participants, four were discarded as they did not understand the purpose of the study; therefore, the total number of participants was 86, 51% of whom were men aged 72.59 on average (SD: 16.23). In the intra-group analysis, differences in PCO2, HCO3, hematocrit, Hb, K+ and and lactic acid were observed between the initial time of the test and the 15, 30 and 60 min intervals. In addition, changes in pH, pO2, SO2, Na and glucose were noted 30 min after the initial sample had been taken. Conclusions. The variation in the values, despite being significant, has no clinical relevance. Consequently, the recommendation continues to be the analysis of the GSA at the earliest point to ensure the highest reliability of the data and to provide the patient with the most appropriate treatment based on those results.

Reference intervals for venous blood gas measurement in adults

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Kirsty L. Ress ◽  
Gus Koerbin ◽  
Ling Li ◽  
Douglas Chesher ◽  
Phillip Bwititi ◽  
...  
Keyword(s):  
Partial Pressure ◽  
Meta Analysis ◽  
Venous Blood ◽  
Reference Interval ◽  
Reference Intervals ◽  
Published Data ◽  
Blood Gas ◽  
Arterial Blood Gas ◽  
Arterial Blood ◽  
Venous Blood Gas

AbstractObjectivesVenous blood gas (VBG) analysis is becoming a popular alternative to arterial blood gas (ABG) analysis due to reduced risk of complications at phlebotomy and ease of draw. In lack of published data, this study aimed to establish reference intervals (RI) for correct interpretation of VBG results.MethodsOne hundred and 51 adult volunteers (101 females, 50 males 18–70 y), were enrolled after completion of a health questionnaire. Venous blood was drawn into safePICO syringes and analysed on ABL827 blood gas analyser (Radiometer Pacific Pty. Ltd.). A non-parametric approach was used to directly establish the VBG RI which was compared to a calculated VBG RI based on a meta-analysis of differences between ABG and VBGResultsAfter exclusions, 134 results were used to derive VBG RI: pH 7.30–7.43, partial pressure of carbon dioxide (pCO2) 38–58 mmHg, partial pressure of oxygen (pO2) 19–65 mmHg, bicarbonate (HCO3−) 22–30 mmol/L, sodium 135–143 mmol/L, potassium 3.6–4.5 mmol/L, chloride 101–110 mmol/L, ionised calcium 1.14–1.29 mmol/L, lactate 0.4–2.2 mmol/L, base excess (BE) −1.9–4.5 mmol/L, saturated oxygen (sO2) 23–93%, carboxyhaemoglobin 0.4–1.4% and methaemoglobin 0.3–0.9%. The meta-analysis revealed differences between ABG and VBG for pH, HCO3−, pCO2 and pO2 of 0.032, −1.0 mmol/L, −4.2 and 39.9 mmHg, respectively. Using this data along with established ABG RI, calculated VBG RI of pH 7.32–7.42, HCO3− 23 – 27 mmol/L, pCO2 36–49 mmHg (Female), pCO2 39–52 mmHg (Male) and pO2 43–68 mmHg were formulated and compared to the VBG RI of this study.ConclusionsAn adult reference interval has been established to assist interpretation of VBG results.

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