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https://www.readbyqxmd.com/read/28087235/hemodynamic-consequence-of-hand-ventilation-versus-machine-ventilation-during-transport-after-cardiac-surgery
#1
E Orestes O'Brien, Beverly J Newhouse, Brett Cronin, Kimberly Robbins, Albert P Nguyen, Swapnil Khoche, Ulrich Schmidt
OBJECTIVES: The hemodynamic consequences of ventilation of intubated patients during transport either by hand or using a transport ventilator have not been reported in patients after cardiac surgery. The authors hypothesized that bag-mask ventilation would alter end-tidal CO2 during transport and hemodynamic parameters in patients post-cardiac surgery. DESIGN: A prospective, randomized trial. SETTING: A university-affiliated tertiary care hospital...
November 9, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28045995/analysis-of-hypoxic-and-hypercapnic-ventilatory-response-in-healthy-volunteers
#2
Shmuel Goldberg, Hanna Maria Ollila, Ling Lin, Husham Sharifi, Tom Rico, Olivier Andlauer, Adi Aran, Efrat Bloomrosen, Juliette Faraco, Han Fang, Emmanuel Mignot
INTRODUCTION: A previous study has suggested that the Human Leukocyte Antigen (HLA) allele DQB1*06:02 affects hypoxic ventilatory response (HVR) but not hypercapnic ventilatory response (HCVR) in an Asian population. The current study evaluated the relationship in Caucasians and Asians. In addition we assessed whether gender or polymorphisms in genes participating in the control of breathing affect HVR and HCVR. METHODS: A re-breathing system was used to measure HVR and HCVR in 551 young adults (56...
2017: PloS One
https://www.readbyqxmd.com/read/28029370/pneumoperitoneum-and-hemodynamic-stability-during-pediatric-laparoscopic-appendectomy
#3
Go Miyano, Hiroki Nakamura, Shogo Seo, Ryo Sueyoshi, Manabu Okawada, Takashi Doi, Hiroyuki Koga, Geoffrey J Lane, Atsuyuki Yamataka
BACKGROUND: Conventional pneumoperitoneum (CP) and automatically maintained pneumoperitoneum using AirSeal Intelligent Flow System (AiFS) were compared during pediatric laparoscopic appendectomy (LA) using intraperitoneal pressure (IPP) and hemodynamic parameters. METHODS: A prospective review of 39 children aged 3-14years who had standard 3-trocar LA was performed. Pneumoperitoneum was either AiFS (n=18) or CP (n=21) according to the surgeon's preference. IPP during insertion of trocars in all subjects was initially 8-10mmHg, which was reduced to 5mmHg then maintained until LA was completed...
September 15, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28028381/intraocular-pressure-changes-with-positioning-during-laparoscopy
#4
Adewale O Adisa, Oluwatoyin H Onakpoya, Anthony T Adenekan, Oluwaseun O Awe
BACKGROUND AND OBJECTIVES: Pneumoperitoneum during laparoscopy can produce changes in intraocular pressure (IOP) that may be influenced by several factors. In this study, we investigated changes in IOP during laparoscopy with different positioning. METHODS: We recruited adult patients without eye disease scheduled to undergo laparoscopic operation requiring a reverse Trendelenburg tilt (rTr; group A; n = 20) or Trendelenburg tilt (Tr; Group B; n = 20). IOP was measured at 7 time points (T1-T7)...
October 2016: JSLS: Journal of the Society of Laparoendoscopic Surgeons
https://www.readbyqxmd.com/read/28017177/maintenance-of-balance-between-airway-pressure-and-intracranial-pressure-in-a-patient-with-tracheal-stenosis-undergoing-craniotomy-a-case-report
#5
Çiğdem Yıldırım Güçlü, Başak Ceyda Meço, Meltem Karamustafa, Yüksel Keçik
BACKGROUND AND OBJECTIVES: Tracheal stenosis is a rare but a life-threatening condition and anesthesia of a patient with tracheal stenosis is challenging for anesthesiologists. Maintaining stable hemodynamics and ventilation parameters are important issues in neuroanesthesia. Any increase in airway peak pressure and ETCO2 will result in increase in intracranial pressure which must be avoided during craniotomies. Tracheal stenosis could be a reason for increased airway pressure. CASE REPORT: We described a patient undergoing craniotomy with tracheal stenosis...
January 2017: Brazilian Journal of Anesthesiology
https://www.readbyqxmd.com/read/28009665/capnography-compared-to-pulse-oximetry-for-early-detection-of-respiratory-compromise-in-non-intubated-patients-undergoing-gastrointestinal-endoscopy-procedures-a-systematic-review-protocol
#6
Jace Holton, Bryan Flattery
Does the use of capnography versus pulse oximetry increase the early detection of respiratory compromise and improve safety in non-intubated patients undergoing moderate sedation for gastrointestinal endoscopy procedures?Respiratory compromise will be detected by alveolar hypoventilation/hyperventilation (EtCO2 < 35 mmHg/EtCO2 > 50 mmHg), arterial oxygen desaturation (defined as a pulse oximetry reading of <95% for >5 s), visual assessments of abnormal ventilation including apnea detection and adverse respiratory events that involve the need for bag-mask ventilation...
December 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/27986366/end-tidal-co2-relates-to-seasickness-susceptibility-a-study-in-antarctic-voyages
#7
Tatsuhisa Hasegawa, Hirofumi Oe, Masakatsu Taki, Hirofumi Sakaguchi, Shigeru Hirano, Yoshiro Wada
OBJECTIVE: To investigate the relationship between end-tidal CO2 (EtCO2) and seasickness (motion sickness at sea) during an Antarctic voyage. METHODS: In this study, we measured EtCO2 and severity of seasickness using the subjective symptoms of motion sickness (SSMS). We sampled EtCO2 and SSMS every 3-4h for 3 days from the date of sail in 16 healthy subjects. This experiment was performed on an icebreaker (standard displacement: 12,650t). RESULTS: Since 2 subjects dropped out because of severe motion sickness, available data were collected from 14 subjects...
December 13, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27960095/low-pre-treatment-end-tidal-co2-predicts-dropout-from-cognitive-behavioral-therapy-for-anxiety-and-related-disorders
#8
David F Tolin, Amber L Billingsley, Lauren S Hallion, Gretchen J Diefenbach
Recent clinical trial research suggests that baseline low end-tidal CO2 (ETCO2, the biological marker of hyperventilation) may predict poorer response to cognitive-behavioral therapy (CBT) for anxiety-related disorders. The present study examined the predictive value of baseline ETCO2 among patients treated for such disorders in a naturalistic clinical setting. Sixty-nine adults with a primary diagnosis of a DSM-5 anxiety disorder, obsessive-compulsive disorder, or posttraumatic stress disorder completed a 4-min assessment of resting ETCO2, and respiration rate (the first minute was analyzed)...
December 8, 2016: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/27939486/changes-in-cerebral-autoregulation-in-the-second-half-of-pregnancy-and-compared-to-non-pregnant-controls
#9
Teelkien R van Veen, Ronney B Panerai, Sina Haeri, Paul P van den Berg, Gerda G Zeeman, Michael A Belfort
OBJECTIVE: The mechanism by which pregnancy affects the cerebral circulation is unknown, but it has a central role in the development of neurological complications in preeclampsia, which is believed to be related to impaired autoregulation. We evaluated the cerebral autoregulation in the second half of pregnancy, and compared this with a control group of healthy, fertile non-pregnant women. METHODS: In a prospective cohort analysis, cerebral blood flow velocity of the middle cerebral artery (determined by transcranial Doppler), blood pressure (noninvasive arterial volume clamping), and end-tidal carbon dioxide (EtCO2) were simultaneously collected for 7min...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27939108/a-randomized-controlled-trial-of-end-tidal-carbon-dioxide-detection-of-preterm-infants-in-the-delivery-room
#10
Gavin A Hawkes, Daragh Finn, Mmoloki Kenosi, Vicki Livingstone, John M O'Toole, Geraldine B Boylan, Ken D O'Halloran, Anthony C Ryan, Eugene M Dempsey
OBJECTIVE: To compare the ability of qualitative versus quantitative methods of end-tidal carbon dioxide (EtCO2) detection to maintain normocarbia during face mask ventilation (FMV) of preterm infants (<32 weeks) in the delivery room. STUDY DESIGN: Preterm infants <32 weeks were randomly assigned to the use of a disposable PediCap EtCO2 detector (Covidien, Dublin, Ireland) (qualitative) or a Microstream side stream capnography device (Covidien) (quantitative) for FMV in the delivery room, via a NeoPuff T-piece resuscitator (Fisher and Paykel, Auckland, New Zealand)...
December 9, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27927624/cerebral-blood-flow-autoregulation-in-ischemic-heart-failure
#11
Juliana R Caldas, Ronney B Panerai, Victoria Jane Haunton, Juliano P Almeida, Graziela S R Ferreira, Ligia Camara, Ricardo de Carvalho Nogueira, Edson Bor-Seng-Shu, Marcelo L Oliveira, Raphaela R V Groehs, Larissa Ferreira-Santos, Manoel Jacobsen Teixeira, Filomena R B G Galas, Thompson G Robinson, Fabio B Jatene, Ludhmila A Hajjar
Patients with ischemic heart failure (iHF) have a high risk of neurological complications such as cognitive impairment and stroke. We hypothesized that iHF patients have a higher incidence of impaired dynamic cerebral autoregulation (dCA). Adult patients with iHF and healthy volunteers were included. Cerebral blood flow velocity (CBFV, transcranial Doppler, middle cerebral artery), end-tidal CO2 (capnography), and arterial blood pressure (Finometer) were continuously recorded supine for five minutes at rest...
December 7, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27920046/resuscitation-of-infants-with-congenital-diaphragmatic-hernia
#12
Anthony O'Rourke-Potocki, Kamal Ali, Vadivelam Murthy, Anthony Milner, Anne Greenough
OBJECTIVE: To determine whether the respiratory response to resuscitation in infants with congenital diaphragmatic hernia (CDH) as measured by a respiratory function monitor differed between those who did and did not survive. DESIGN: Observational study. SETTING: Tertiary perinatal centre. PATIENTS: Thirty-eight infants born at 34 weeks of gestation or greater and diagnosed antenatally with a CDH. INTERVENTIONS: Expiratory tidal volume (VTe), peak inflation pressure (PIP) and end-tidal carbon dioxide level (ETCO2) were simultaneously recorded during resuscitation using a respiratory function monitor...
December 5, 2016: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/27918847/left-ventricular-compressions-improve-hemodynamics-in-a-swine-model-of-out-of-hospital-cardiac-arrest
#13
Kenton L Anderson, Maria G Castaneda, Susan M Boudreau, Danny J Sharon, Vikhyat S Bebarta
INTRODUCTION: We hypothesized that chest compressions located directly over the left ventricle (LV) would improve hemodynamics, including coronary perfusion pressure (CPP), and return of spontaneous circulation (ROSC) in a swine model of cardiac arrest. METHODS: Transthoracic echocardiography (echo) was used to mark the location of the aortic root and the center of the left ventricle on animals (n = 26) which were randomized to receive chest compressions in one of the two locations...
December 5, 2016: Prehospital Emergency Care
https://www.readbyqxmd.com/read/27871584/a-comparison-of-3-ventilation-strategies-in-children-younger-than-1-year-using-a-proseal-laryngeal-mask-airway-a-randomized-controlled-trial
#14
T Wesley Templeton, Lauren K Hoke, Leah B Templeton, Douglas G Ririe, Danielle M Rose, Yvon F Bryan
STUDY OBJECTIVE: To determine quantitative differences in several routinely measured ventilation parameters using a standardized anesthetic technique and 3 different ventilation modalities in patients younger than 1 year with a ProSeal laryngeal mask airway (PLMA). DESIGN: Randomized prospective study. SETTING: Tertiary care pediatric hospital. PATIENTS: Thirty-nine American Society Anesthesiologists classifications 1 to 2, pediatric patients younger than 1 year...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27870644/analysis-of-physiological-respiratory-variable-alarm-alerts-among-laboring-women-receiving-remifentanil
#15
Carolyn F Weiniger, Brendan Carvalho, Daniel Stocki, Sharon Einav
BACKGROUND: Remifentanil may be used by laboring women for analgesia, despite controversy because of potential apneas. We evaluated candidate variables as early warning alerts for apnea, based on prevalence, positive predictive rate, sensitivity for apnea event detection, and early warning alert time intervals (lead time) for apnea. METHODS: We performed a secondary analysis of respiratory physiological data that had been collected during a prospective IRB-approved study of laboring women receiving IV patient-controlled boluses of remifentanil 20 to 60 μg every 1 to 2 minutes...
November 18, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27777693/comparison-of-end-tidal-carbon-dioxide-and-arterial-blood-bicarbonate-levels-in-patients-with-metabolic-acidosis-referred-to-emergency-medicine
#16
Ali Taghizadieh, Mahboub Pouraghaei, Payman Moharamzadeh, Alireza Ala, Farzad Rahmani, Karim Basiri Sofiani
Introduction: The routine and gold standard method to diagnose of acid - base disturbance is arterial blood gas (ABG) sampling. Capnography could be used to measure the end-tidal carbon dioxide (ETCO2) levels and ETco2 has a close correlation with the PaCo2. The aim of this study was comparison the ETco2 and arterial blood bicarbonate levels in patients with metabolic acidosis. Methods: In a descriptive-analytical study that performed in Emergency Department of Emam Reza Medical Research and Training Hospital of Tabriz on patients with metabolic acidosis, ETco2 level and blood bicarbonate levels in 262 patients were evaluated...
2016: Journal of Cardiovascular and Thoracic Research
https://www.readbyqxmd.com/read/27766526/implementation-of-a-novel-postoperative-monitoring-system-using-automated-modified-early-warning-scores-mews-incorporating-end-tidal-capnography
#17
Joseph M Blankush, Robbie Freeman, Joy McIlvaine, Trung Tran, Stephen Nassani, I Michael Leitman
Modified Early Warning Scores (MEWS) provide real-time vital sign (VS) trending and reduce ICU admissions in post-operative patients. These early warning calculations classically incorporate oxygen saturation, heart rate, respiratory rate, systolic blood pressure, and temperature but have not previously included end-tidal CO2 (EtCO2), more recently identified as an independent predictor of critical illness. These systems may be subject to failure when physiologic data is incorrectly measured, leading to false alarms and increased workload...
October 20, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27761039/a-survey-on-the-use-of-low-flow-anaesthesia-and-the-choice-of-inhalational-anaesthetic-agents-among-anaesthesiologists-of-india
#18
Rajasree Omanakutty Amma, Subha Ravindran, Rachel Cherian Koshy, K M Jagathnath Krishna
BACKGROUND AND AIMS: With the availability of modern workstations and heightened awareness on the environmental effects of waste anaesthesia gases, anaesthesiologists worldwide are practicing low flow anaesthesia (LFA). Although LFA is being practiced in India, hard evidence on the current practice of the same from anaesthesiologists practicing in India is lacking and hence, we conducted this survey. METHODS: A questionnaire containing 16 questions was distributed among a subgroup of anaesthesiologists who attended the 2014 National Conference of Indian Society of Anaesthesiologists...
October 2016: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/27742745/establishing-a-gradient-between-partial-pressure-of-arterial-carbon-dioxide-and-end-tidal-carbon-dioxide-in-patients-with-acute-respiratory-distress-syndrome
#19
Tariq Yousuf, Taylor Brinton, Ghulam Murtaza, Daniel Wozniczka, Khansa Ahmad, Joy Iskandar, Raju Mehta, Hesam Keshmiri, Tabassum Hanif
End-tidal carbon dioxide (ETCO2) monitoring is useful in many situations. However, ETCO2 monitoring is unreliable in patients with acute respiratory distress syndrome (ARDS) due to widespread lung inflammation. In our study, we attempt to establish the gradient between the arterial pressure of carbon dioxide (PaCO2) and ETCO2 in patients with ARDS, which we defined as the PaETCO2 gradient. The main objective of the study was to establish a PaETCO2 gradient in each severity of ARDS. We analyzed 35 patients with ARDS and a total of 88 arterial blood gases were included...
October 14, 2016: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/27702883/internal-carotid-artery-blood-flow-in-healthy-awake-subjects-is-reduced-by-simulated-hypovolemia-and-noninvasive-mechanical-ventilation
#20
Maria Skytioti, Signe Søvik, Maja Elstad
Intact cerebral blood flow (CBF) is essential for cerebral metabolism and function, whereas hypoperfusion in relation to hypovolemia and hypocapnia can lead to severe cerebral damage. This study was designed to assess internal carotid artery blood flow (ICA-BF) during simulated hypovolemia and noninvasive positive pressure ventilation (PPV) in young healthy humans. Beat-by-beat blood velocity (ICA and aorta) were measured by Doppler ultrasound during normovolemia and simulated hypovolemia (lower body negative pressure), with or without PPV in 15 awake subjects...
October 2016: Physiological Reports
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