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Background: It is recommended to heat and humidity CO2 in laparoscopic surgery to prevent postoperative pain and hypothermia but information about its effects on hemodynamic and respiratory parameters is limited. We aimed to investigate the effects of standard and heated-humidified CO2 on hemodynamic and respiratory parameters, body temperature and pain in healthy patients. Methods: One hundred patients who underwent total laparoscopic hysterectomy for benign pathology were divided into two groups: Group CD (cold-dry) patients were administered standard CO2, while Group HH (heated-humidified) patients were administered 95% humidified insufflation at 37 degrees C. Hemodynamic and respiratory parameters, body temperature, pain score and blood count parameters were recorded. Results: A total of 96 patients were included in the study, taken from the 100 patients. Group HH (n:47) had only higher systolic blood pressure at 75, mean blood pressure at 50 and 55 and a lower heart rate between 15 and 45 min (p:0.049, 0.037, 0.013 respectively). Pain score, morphine consumption, end-tidal CO2 and arterial blood gas values were not different between the groups, with only body temperature from 40 min and minimum value being significantly higher (at a difference of 0.86-1.04 degrees C) in Group HH. Postoperative leukocyte, neutrophil and NLR (neutrophil-leukocyte ratio) were found to be higher in this group (p < 0.05). Conclusion: It has been found that both standard and heated-humidified CO2 do not constitute a problem in terms of hemodynamic and respiratory parameters in healthy patients. The heated-humidified CO2 group had only a higher core body temperature and inflammatory response. (C) 2021 Asian Surgical Association and Taiwan Robotic Surgery Association. Publishing services by Elsevier B.V.

INTRODUCTION Rib fracture fixation is becoming more popular and widely accepted among trauma surgeons worldwide as the recommended treatment method for flail chest injury. Recent data demonstrate improved results when compared with non-operative treatment. Improved outcomes were reported regarding ICU stay, need for tracheostomy, length of hospital stay, ventilator-associated pneumonia (VAP), and even death. The objective of this study was to ascertain whether clinical respiratory para-meters are improved after rib fracture fixation procedure. MATERIAL AND METHODS This is a prospective study using a retrospective cohort for control, which took place at the Soroka University Medical Centre, Israel. Inclusion criteria included all patients over 18 years of age with flail chest injury or multiple ribs fractures, who were admitted to the General Intensive Care Unit (GICU). Between October 2015 and December 2018, we identified 24 patients who had their rib fractures operatively fixed and compared them to 61 patients with flail chest and multiple rib fractures, who were admitted to our GICU between the years 2010 and 2015 and were treated non-opera-tively. In all the surgical cases operations were performed within 72 hours of arrival in accordance with our treatment algorithm. All fractures were fixed using specialised anatomic locking plates/nails. Demographic data were collected, and respiratory parameters before and after the surgery were recorded and analysed. RESULTS We compared patients who had had their rib fractures fixed with a cohort group of patients who had been treated non-operatively in the past. No demographic differences were found between the 2 groups, nor were there any differences in their clinical trauma scoring, mechanical ventilation days, length of ICU stay, VAP, and death rates. The respiratory parameters (paO2/FiO2 ratio and chest wall compliance) were significantly higher during the 3 ensuing days after surgery and continued to improve in Group 1 (rib fixation group), in comparison to group 2 (non-operative) patients (P = 0.007 and P < 0.0001, respectively). The peak inspiratory pressure and PEEP para-meters were significantly lower in group 1 in comparison to group 2 during the 3 days, in favour of the operated group, with significant improvement noted over the 3 days post-surgery (P = 0.007 and P = 0.02, respectively). CONCLUSIONS We suggest that surgical treatment of flail chest and multiple rib fractures has clinical benefit and improves respiratory parameters even in the presence of multiple trauma injuries.

Total lung capacity is usually measured by a body plethysmograph or helium dilution methods. In this study an alternative approach to obtain total lung capacity of spontaneous breathing subjects is introduced. The device utilises an optoelectronic plethysmograph and a small tube, which measures mouth pressure and allows total lung capacity to be obtained, which differs less than 0.4 L from the total lung capacity of the body plethysmograph. The method shows potential to be a less burdensome method to estimate total lung capacity determination than the body plethysmograph.

International audience; Slow-paced breathing has been shown to enhance the self-regulation abilities of athletes via its influence on cardiac vagal activity. However, the role of certain respiratory parameters (i.e., inhalation/exhalation ratio and presence of a respiratory pause between respiratory phases) still needs to be clarified. The aim of this experiment was to investigate the influence of these respiratory parameters on the effects of slow-paced breathing on cardiac vagal activity. A total of 64 athletes (27 female; Mage = 22, age range = 18–30 years old) participated in a within-subject experimental design. Participants performed six breathing conditions within one session, with a 5 min washout period between each condition. Each condition lasted 5 min, with 30 respiratory cycles, and each respiratory cycle lasted 10 s (six cycles per minute), with inhalation/exhalation ratios of 0.8, 1.0, 1.2; and with or without respiratory pauses (0.4 s) between respiratory phases. Results indicated that the root mean square of successive differences (RMSSD), a marker of cardiac vagal activity, was higher when exhalation was longer than inhalation. The presence of a brief (0.4 s) post-inhalation and post-exhalation respiratory pause did not further influence RMSSD. Athletes practicing slow-paced breathing are recommended to use an inhalation/exhalation ratio in which the exhalation phase is longer than the inhalation phase.

The respiratory system is one of the major components of the speech production system. Any alteration in breathing can result in changes in speech. Specific breathing characteristics, such as breathing rate and tidal volume, can indicate a person's pathological condition. More recently, neural network-based methods have started emerging for predicting the breathing signal from the speech signal. The neural networks are trained and evaluated with different objective measures, such as mean squared error (MSE) and Pearson's correlation. This paper investigates whether there is a systematic relationship between the different objective measures used for training and evaluating the neural network models and the end-goal, i.e. estimation of breathing parameters such as, breathing rate and tidal volume. Our investigations on two different data sets with two different neural network-based approaches show that there is no clear systematic relationship. In other words, obtaining a high Pearson's correlation on the evaluation set does not necessarily mean better breathing parameter estimation. Thus, indicating the need for developing other objective evaluation measures.

Respiration is an essential and primary mechanism for speech production. We first inhale and then produce speech while exhaling. When we run out of breath, we stop speaking and inhale. Though this process is involuntary, speech production involves a systematic outflow of air during exhalation characterized by linguistic content and prosodic factors of the utterance. Thus speech and respiration are closely related, and modeling this relationship makes sensing respiratory dynamics directly from the speech plausible, however is not well explored. In this article, we conduct a comprehensive study to explore techniques for sensing breathing signal and breathing parameters from speech using deep learning architectures and address the challenges involved in establishing the practical purpose of this technology. Estimating the breathing pattern from the speech would give us information about the respiratory parameters, thus enabling us to understand the respiratory health using one's speech. (C) 2021 The Authors. Published by Elsevier Ltd.

Background There are limited reports available on preferred chest physiotherapy methods in patients with coronary artery graft (CABG) surgery. Objectives The aim of this study was to compare the effect of active cyclic breathing technique (ACBT) and routine chest physiotherapy on pain and respiratory parameters in patients undergoing CABG surgery. Methods This randomized clinical trial was carried out from July to November 2018. Seventy patients were selected randomly after CABG according to inclusion criteria and then assigned in two groups (35 in ACBT and 35 in routine physiotherapy) by random minimization method. The arterial blood gas levels, pain, heart rate, and respiratory rate were measured for both groups before and after the intervention on two consecutive days after surgery. Data were analyzed by SPSS software V.22, at a significance level of 0.05. Results The two groups were similar in terms of demographic variables. In within group comparison in the physiotherapy group, the level of PaO2, HR, RR, and pain increased significantly on both days (P = 0.001), SaO2 on the first day (P = 0.005) and second day (P = 0.001), and PaCO2 on the first day (P = 0.02). In ACBT group, the level of SaO2, HR, RR, and pain increased significantly on both days (P = 0.001), HCO3 on the first day (P = 0.021), and PaO2 on the second day (P = 0.001) post intervention. In between group comparison, on the first day, the level of PH (P = 0.034), and on the second day HCO3 (P = 0.032) decreased, while RR (P = 0.011) increased significantly in the physiotherapy group, at post-intervention phase. Conclusions ACBT and routine physiotherapy had similar effects on arterial oxygenation, HR, and pain perception following CABG surgery. The physiotherapy on the second day increased the RR to an abnormal range.

Background: Prefabricated adjustable thermoplastic mandibular advancement devices (PAT-MADs) are a practical short-term treatment for obstructive sleep apnoea-hypopnoea syndrome (OSAHS) in patients who have failed or refused continuous positive airway pressure (CPAP) therapy. Objective: To assess the effectiveness of a new professionally-fitted PAT-MAD in patients with OSAHS in Morocco. Method: Twenty-four adults with mild, moderate or severe OSAHS were fitted with the PAT-MAD (BluePro®; BlueSom, France). Respiratory parameters (apnoea-hypopnoea index (AHI), oxygen desaturation index (ODI)) and daytime sleepiness using the Epworth Sleepiness scale (ESS) were assessed before and after treatment. Adverse events were recorded. Results: Mean treatment duration was 106.3 ± 73.4 days. Mean AHI score decreased from 21.4 ± 7.4 to 9.3 ± 4.1 after treatment (pp=0.0001; and 7.0 ± 6.9 to 4.7 ± 4.0, mean reduction 30.5 ± 25.0%, p=0.2, respectively). Treatment was considered to have been successful in 22 patients (91.7%) who had mild OSAHS or an AHI score of ≤5 at the end of the study. The device was well-tolerated. Conclusion: This new PAT-MAD appears to be effective at reducing respiratory parameters and improving daytime alertness in patients with OSAHS. Long term studies in a larger number of patients are warranted to assess the long-term efficacy, retention and side-effects of this device.

Introduction: “Silver Yoga” program has been devised by Centre for Yoga Therapy, Education and Research (CYTER) of Sri Balaji Vidyapeeth, Pondicherry. Participants practiced the protocol that was specially designed for senior citizens, keeping in mind their health status and physical limitations. Aim: The present study was planned to evaluate possible changes in lung functioning assessed through Pulmonary Function Test (PFT) in senior citizens following 12 weeks of an integrated Silver Yoga programme. Materials and Methods: In this comparative pre-post study, 40 elderly women inmates of the hospice were randomised into two groups of 20 each. Yoga group (Group A) received training in the integrated Silver Yoga programme while control group (Group B) did not receive any yoga training. Both the groups however participated in all the routine activities of the Hospice. Anthropometric data, respiratory rate and lung function parameters were recorded before and after the 12-week study period. Intra-group and inter-group comparisons of pre and post study data were done using Student’s paired and unpaired t-test respectively. A p-value less than 0.05 was considered to indicate significant differences between means. Results: After the 12 weeks of Silver Yoga, both weight and BMI showed significant reduction (p

[Purpose] This study determined the effects a new modality of core stabilization exercises based on diaphragmatic breathing on pulmonary function, abdominal fitness, and movement efficiency. [Subjects] Thirty-two physically active, healthy males were randomly assigned to an experimental group (n = 16) and a control group (n = 16). [Methods] The experimental group combined diaphragmatic breathing exercises with global stretching postures, and the control group performed common abdominal exercises (e.g., crunch, plank, sit-up), both for 15 minutes twice weekly for 6 weeks. Pulmonary function (measured by forced vital capacity, forced expiratory volume in 1 second, and peak expiratory flow) and abdominal fitness (measured with the American College of Sports Medicine curl-up [cadence] test and the Functional Movement Screen(TM)) were evaluated before and after the intervention. [Results] Significant changes in curl-up (cadence) test scores, Functional Movement Screen scores, and all pulmonary parameters were recorded in the experimental group at the posttraining assessment, whereas in the control group, no significant differences over baseline were observed in any parameters. [Conclusion] Compared with traditional abdominal exercises, core stabilization exercises based on breathing and global stretching postures are more effective in improving pulmonary function and abdominal fitness.

Amaç: Bu çalışmanın amacı fiziksel engelli ile sağlıklı çocukların solunum parametrelerinin karşılaştırılmasıdır. Yöntemler: Çalışmaya 13 fiziksel engelli ve 12 sağlıklı olmak üzere toplam 25 çocuk dahil edildi. Çocukların solunum değerlerini ölçmede BTL-08 spirometre kullanıldı. Kaba Motor Fonksiyon Sınıflama Sistemi (GMFCS) ve El Becerileri Sınıflandırma Sistemi (MACS) seviyeleri belirlendi. Bulgular: Fiziksel engelli ile sağlıklı çocukların solunum parametreleri karşılaştırıldığında restriktif paternler açısından aralarında istatistiksel olarak anlamlı fark bulunmuştur (p0,001). GMFCSe göre seviye 2 ve altı çocukların seviye 3 ve üstü çocuklara göre zorlu vital kapasite (%FVC) değerlerinin daha iyi olduğu bulunmuştur (p0,05). Sonuç: Fiziksel engelli çocukların rehabilitasyon programına respiratuar eğitim ve solunum kapasitelerini arttırmaya yönelik pulmoner rehabilitasyon programlarının da dahil edilmesinin yararlı olacağını düşünüyoruz. Objective: The aim of this study was to compare the respiratory parameters of physically disabled and healthy children. Methods: The study included 25 children. Of these children, 13 were physically disabled and 12 were healthy children. The BTL-08 spirometry device was used for measuring the respiratory values of the children. The gross motor function classification system (GMFCS) and manual ability classification system (MACS) levels were determined. Results: A statistically significant difference was found between the respiratory parameters of physically disabled and healthy children in relation to the restrictive patterns (p

The use of graduated compression stockings (GCS) in sport has been increasing in the last years due to their potential positive effects for athletes. However, there is little evidence to support whether these types of garments actually improve cardiorespiratory performance. The aim of this study was to examine the cardiorespiratory responses of GCS during running after three weeks of regular use. Twenty recreational runners performed three tests on different days: test 1) ¿ a 5-min maximal effort run in order to determine the participants¿ maximal aerobic speed; and tests 2) and 3) ¿ a fatigue running test of 30 minutes at 80% of their maximal aerobic speed with either GCS or PLACEBO stockings at random. Cardiorespiratory parameters (minute ventilation, heart rate, relative oxygen consumption, relative carbon dioxide production, ventilatory equivalents for oxygen and carbon dioxide, and oxygen pulse) were measured. Before each test in the laboratory, the participants trained with the randomly assigned stockings (GCS or PLACEBO) for three weeks. No significant differences between GCS and PLACEBO were found in any of the cardiorespiratory parameters. In conclusion, the present study provides evidence that running with GCS for three weeks does not influence cardiorespiratory parameters in recreational runners.

Background The use of supraglottic airway devices (SADs) in surgeries with laparoscopic pneumoperitoneum and Trendelenburg (LPT) positioning is controversial due to concerns about insufficient pulmonary ventilation and aspiration. In this prospective, randomized-controlled trial, we evaluated whether the i-gel, a new second generation SAD, provides an effective alternative to an endotracheal tube (ETT) by comparing respiratory parameters and perioperative respiratory complications in non-obese patients. Methods In a randomized controlled trial, forty anesthetized patients with ASA I-II were divided into equally sized i-gel and ETT groups. We evaluated the respiratory parameters in the supine and LPT position in comparison between the two groups. The leak fraction was our primary outcome, which was defined as the leak volume divided by the inspired tidal volume. The leak volume was the difference between the inspired and expired tidal volumes. We also monitored pulmonary aspiration and respiratory complications during the perioperative period. Results In the LPT position, there were no differences in the leak fraction (median [IQR]) between the i-gel and ETT groups (6.20[3.49] vs 6.38[3.71] %, P = 0.883). In the i-gel group, notably less leakage was observed in the LPT position than in the supine position (median [IQR]: 7.01[3.73] %). This phenomenon was not observed in the ETT group. The rate of postoperative sore throat was also significantly lower in the i-gel group than in the ETT group (3/17 vs 9/11). No vomitus nor any signs associated with aspiration were noted in our patients after extubation in the follow-up prior to discharge. Conclusions The i-gel provides a suitable alternative to an ETT for surgeries with LPT positioning in non-obese patients. Trial registration Registered at Clinicaltrials.gov NCT02462915, registered on 1 June 2015. Electronic supplementary material The online version of this article (doi:10.1186/s12871-016-0291-1) contains supplementary material, which is available to authorized users.

ERPA International Congress on Education (ERPA) -- JUN 06-08, 2014 -- Istanbul Univ, Istanbul, TURKEY WOS: 000348253300062 Objective of this study has been identified as determination of respiratory parameters and aerobic capacity of 28 male referees (B-C-D) working in different classifications. Respiratory parameters like forced vital capacity (FVC), vital capacity (VC) and maximum voluntarily ventilation (MVV) and maximum inspiratory pressure (Mip) and maximum expiratory pressure (Mep) measurements have been used in this study. Shuttle run test of 20 m has been applied for determination of aerobic capacity. Obtained data, were assessed in spss statistical analysis program with T-Test and Variance Analysis and findings were accepted as significant at p

The development of graphical user interfaces (GUIs) has been an emergent demand in the area of healthcare technologies. Specifically for respiratory healthcare there is a lack of tools to produce a complete multimedia database, where respiratory sounds and other clinical data are available in a single repository. This is essential for a complete patient's assessment and management in research/clinical settings. Therefore, this study aimed to develop a usable interface to collect and organise respiratory-related data in a single multimedia database. A GUI, named LungSounds@UA, composed by a multilayer of windows, was developed. The usability of the user-centred interface was as-sessed in a pilot study and in an evaluation session. The users testified the utility of the application and its great potential for research/clinical settings. However, some drawbacks were identified, such as a certain difficulty to intuitively navigate in the great amount of the available information, which will inform future developments.

The aim of this study was to compare the effects of 3 different sedative-analgesic regimens in patients with intracranial mass lesions undergoing stereotactic brain biopsy. A 135 outpatients with American Society of Anesthesiologists I to II were divided into 3 groups: group A (n = 45) received a loading dose of IV alfentanil 7.5 microg/kg followed by infusion rate of 0.25 microg/kg/min; group F (n = 45) received a bolus dose of 1 microg/kg IV fentanyl and repeated as needed; and group R (n = 45) received infusion of 0.05 microg/kg/min remifentanil. Target level of sedation was 3 to 4 of the Ramsay Sedation Scale. Systolic and diastolic blood pressure, heart rate, respiratory rate, peripheric oxygen saturation (SpO2), and end-tidal carbon dioxide were recorded at different stages of the procedures. The patients in group F had significantly lower mean heart rate than those in groups A and R, but this was not in the limits of the bradycardia. The patients in group A had significantly lower mean SpO2 than those in the other groups, but mean SpO2 values did not drop below 94%. There were no significant differences in end-tidal carbon dioxide and respiratory rate values among the groups. Our results suggest that all 3 regimens have relatively similar hemodynamic and respiratory responses. The use of bolus fentanyl technique caused less hemodynamic stability. The continuous infusion technique of remifentanil or alfentanil provided better control on hemodynamic parameters.

Background: Blunt chest injury with multiple rib fractures can result in such complications as pneumonia, atelectasis, bronchiectasis, empyema thoracis, acute respiratory distress syndrome, and prolonged Intensive Care Unit and hospital stay, with its concomitant mortality. These may be prevented or reduced by good analgesic therapy which is the subject of this study. Methods: This was a prospective study of effects of analgesia on changes in pulmonary functions of patients with traumatic multiple rib fractures resulting from blunt chest injury. Results: There were 64 adult patients who were studied with multiple rib fractures caused by blunt chest trauma. Of these patients, 54 (84.4%) were male and 10 (15.6%) were female. Motorcycle (popularly known as “okada”) and tricycle (popularly known as keke napep) accidents significantly accounted for the majority of the multiple rib fractures, that is, in 50 (78.1%) of the patients. Before analgesic administration, no patient had a normal respiratory rate, but at 1 h following the administration of analgesic, 21 (32.8%) of patients recorded normal respiratory rates and there was a significant reduction in the number (10.9% vs. 39.1%) of patients with respiratory rates >30 breaths/min. Before commencement of analgesic, no patient recorded up to 99% of oxygen saturation (SpO2) as measured by pulse oximeter, while 43.8% recorded SpO2 of 96%. This improved after 1 h of administration of analgesics to SpO2 of 100% in 18.8% of patients and 99% in 31.3% of patients and none recording SpO2 of < 97% (P = 0.006). Before analgesia, no patient was able to achieve peak expiratory flow rate (PEFR) value >100% of predicted while only 9 (14.1%) patients were able to achieve a PEFR value in the range of 91%–100% of predicted value. One hour after analgesia, a total of 6 (9.4%) patients were able to achieve PEFR values >100% predicted, while 35 (54.7%) patients achieved PEFR values in the range of 91%–100% predicted. Conclusion: Adequate analgesia is capable of reversing the negative effects of chest pain of traumatic multiple rib fractures on pulmonary function parameters through improvement in respiratory mechanics.

Objectives: The aim of the experiment was to analyze the influence that the clothing material may have on human physiology and thermal comfort both at rest and physical effort to answer the question which fabric is better, a natural or a synthetic one. Materials and Methods: We measured some psychomotor parameters: critical flicker frequency (CFF), reaction time to auditory/visual stimuli (RT), concentration of attention (CA); cardiovascular parameters: blood pressure (BP), heart rate (HR) and respiratory parameters: tidal volume (V T ), minute ventilation (V E ), oxygen consumption (V O2 ), carbon dioxide output (V CO2 ), respiratory exchange ratio (RER) in human volunteers before, during and after physical effort. The subjects performed a 15-min treadmill test on treadmill wearing clothes made of two different materials: 100% coarse wool and 100% acrylic. An interview was conducted directly before the exercise test to assess the subjects’ general mood and wellbeing on that day. Besides, before and after the test, the subjects in their own words described the sensation they felt with respect to the physiological comfort of particular clothing. Results: The results showed that wearing clothes made of different fabrics had some influence on the cardiovascular and respiratory parameters during physical effort but it did not have any effect on the psychomotor skills. The perception of physiological comfort by the subjects wearing coarse wool or acrylic depended on their physiological state and differed at rest and after the physical effort. Conclusions: The course of physiological processes depends on the kind of clothing a given person is wearing. It is not possible to clearly define which of the two clothing materials: natural — wool, or synthetic — acrylic is better. Each of them exerts a different effect on the human organism. The usefulness of a given type of clothing material seems to depend on the human physiological state and the related thermoregulatory processes.

Outbreaks of emerging infectious diseases have led to guidelines recommending the routine use of N95 respirators for healthcare workers, many of whom are women of childbearing age. The respiratory effects of prolonged respirator use on pregnant women are unclear although there has been no definite evidence of harm from past use. We conducted a two-phase controlled clinical study on healthy pregnant women between 27 to 32 weeks gestation. In phase I, energy expenditure corresponding to the workload of routine nursing tasks was determined. In phase II, pulmonary function of 20 subjects was measured whilst at rest and exercising to the predetermined workload while breathing ambient air first, then breathing through N95-mask materials. Exercising at 3 MET while breathing through N95-mask materials reduced mean tidal volume (TV) by 23.0 % (95 % CI −33.5 % to −10.5 %, p