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https://www.readbyqxmd.com/read/28345964/end-tidal-carbon-dioxide-as-a-prognostic-feature-in-pulmonary-arterial-hypertension
#1
Caitlin E Welch, Evan L Brittain, Alexander L Newman, Ivan M Robbins, Meredith E Pugh, John H Newman, Anna R Hemnes
RATIONALE: Pulmonary arterial hypertension (PAH) is characterized in part by increased dead space ventilation, which can be estimated noninvasively at the bedside by measurement of end-tidal CO2 (ETCO2). OBJECTIVES: Prior work has demonstrated that ETCO2 is lower in PAH than control patients, but whether ETCO2 has prognostic value is unknown. We hypothesized that lower measurements of ETCO2 in patients with PAH correlate with worse long-term outcomes. METHODS: Patients with PAH seen in our referral clinic were prospectively recruited for ETCO2 measurement between September 2009 and February 2010...
March 27, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28341350/deadly-business-the-usefulness-of-etco2
#2
EDITORIAL
Jozien Versteeg, Gerrit J Noordergraaf
No abstract text is available yet for this article.
March 21, 2017: Resuscitation
https://www.readbyqxmd.com/read/28235531/effects-of-the-concurrent-use-of-a-reduced-dose-of-propofol-with-divided-supplemental-remifentanil-and-moderate-hyperventilation-on-duration-and-morphology-of-electroconvulsive-therapy-induced-electroencephalographic-seizure-activity-a-randomized-controlled
#3
Kohki Nishikawa, Michiaki Yamakage
STUDY OBJECTIVE: The clinical adequacy of electroconvulsive therapy (ECT) depends on not only seizure duration but also seizure amplitude and postictal suppression. The objective of this study was to evaluate the effects of combination of a reduced dose of propofol and moderate hyperventilation on seizure duration and electrical stimulus requirement for adequate ictal amplitude and postictal suppression. DESIGN: Prospective, randomized, controlled trial. SETTING: Operating room at a municipal hospital...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28202896/effect-of-mild-hypercapnia-on-lung-oxygenation-in-sitting-position-during-shoulder-arthroscopy-under-general-anesthesia
#4
Hyun Jeong Kwak, Ji Yeon Lee, Jong Wha Lee, Hong Soon Kim, Ho Jin Hur, Ji Young Kim
BACKGROUND Mild hypercapnia is permitted during surgeries in sitting position under general anesthesia to maintain cerebral regional oxygen saturation (rSO2). However, since hypoventilation may cause gas exchange impairment, we evaluated effects of mild hypercapnia on lung oxygenation during shoulder arthroscopy in sitting position. MATERIAL AND METHODS Forty patients were randomly allocated to a normocapnia group (ETCO2 35 mmHg, n=20) or a hypercapnia group (45 mmHg, n=20). The mean arterial pressure (MAP), heart rate (HR), and rSO2 were measured 5 min after intubation in supine position (T0), and at 2, 4, 6, 8, 10, 20, 30, 40, 50, and 60 min of remaining in sitting position (T1-10)...
February 16, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28202085/should-capnography-be-used-as-a-guide-for-choosing-a-ventilation-strategy-in-circulatory-shock-caused-by-severe-hypothermia-observational-case-series-study
#5
Tomasz Darocha, Sylweriusz Kosiński, Anna Jarosz, Paweł Podsiadło, Mirosław Ziętkiewicz, Tomasz Sanak, Robert Gałązkowski, Jacek Piątek, Janusz Konstanty-Kalandyk, Rafał Drwiła
BACKGROUND: Severe accidental hypothermia can cause circulatory disturbances ranging from cardiac arrhythmias through circulatory shock to cardiac arrest. Severity of shock, pulmonary hypoperfusion and ventilation-perfusion mismatch are reflected by a discrepancy between measurements of CO2 levels in end-tidal air (EtCO2) and partial CO2 pressure in arterial blood (PaCO2). This disparity can pose a problem in the choice of an optimal ventilation strategy for accidental hypothermia victims, particularly in the prehospital period...
February 15, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28183549/hypocapnia-measured-by-end-tidal-carbon-dioxide-tension-during-anesthesia-is-associated-with-increased-30-day-mortality-rate
#6
Philippe Dony, Michele Dramaix, Jean G Boogaerts
STUDY OBJECTIVE: To evaluate the relationship between intraoperative end-tidal carbon dioxide (etco2) values and clinical outcomes with special attention on 30-day postoperative mortality and secondarily on hospital length of stay (LOS). DESIGN: Retrospective, observational study. SETTING: Surgical theaters of the University Hospital Center of Charleroi. PATIENTS: Five thousand three hundred seventeen patients ASA I-IV undergoing various surgical procedures (except pediatric and cardiac surgery) under general anesthesia...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28180117/effect-of-neck-collar-fixation-on-ventilation-in-multiple-trauma-patients
#7
Farzad Rahmani, Mahboob Pouraghaei, Payman Moharamzadeh, Ebrahim Mashhadi
BACKGROUND: According to the guidelines for treatment of multiple trauma patients, immobilization of the neck and neck collar fixation are essential. However, following neck collar fixation patients usually experience dyspnea. Some studies have found that neck collar fixation can lead to decreased pulmonary volumes, yet there have been no studies on the effect of neck collar fixation on patient ventilation. OBJECTIVES: The purpose of this study was to determine the effect of neck collar fixation on ventilation in multiple trauma patients...
September 2016: Trauma Monthly
https://www.readbyqxmd.com/read/28177206/propofol-sedation-reduces-diaphragm-activity-in-spontaneously-breathing-patients-ultrasound-assessment
#8
Monica Rocco, Luigi Maggi, Giorgio Ranieri, Giovanni Ferrari, Cesare Gregoretti, Giorgio Conti, Roberto A DE Blasi
BACKGROUND: The diaphragm is the most important respiratory muscle in humans, and the close relationship between inspired volume and diaphragmatic movement in normal subjects has led to investigations into diaphragmatic activity using ultrasound, during spontaneous breathing and sedative drug infusion. METHODS: A total of 36 consecutive patients undergoing diagnostic procedures under deep propofol sedation were studied. Ultrasound measurements included the following: diaphragmatic thickening end-inspiration (TEI) and end-expiration (TEE)...
March 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28157836/continuous-capnography-monitoring-during-resuscitation-in-a-transitional-large-mammalian-model-of-asphyxial-cardiac-arrest
#9
Praveen Chandrasekharan, Payam Vali, Munmun Rawat, Bobby Mathew, Sylvia F Gugino, Carmon Koenigschnekt, Justin Helman, Jayasree Nair, Sara Berkelhamer, Satyan Lakshminrusimha
BACKGROUND: In neonates requiring chest compression (CC) during resuscitation, neonatal resuscitation program (NRP) recommends against relying on a single feedback device such as end-tidal carbon dioxide (ETCO2) or SpO2 to determine return of spontaneous circulation (ROSC) until more evidence becomes available. METHODS: We evaluated the role of monitoring ETCO2 during resuscitation in a lamb model of cardiac arrest induced by umbilical cord occlusion (n=21). Lambs were resuscitated as per NRP guidelines...
February 3, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28123650/post-operative-capnostream-monitoring-in-patients-with-obstructive-sleep-apnoea-symptoms-case-series
#10
Vasanth Rao Kadam, Mazyar Danesh
Obstructive sleep apnoea (OSA) patients on opioid analgesic have an increased incidence of postoperative respiratory complications; prevention of these may be possible with appropriate post-operative monitoring. We recruited 4 OSA patients who had general anaesthesia for orthopaedic and septoplasty surgery. They required Patient Controlled Analgesia (PCA) or oral opioids in the post-operative period, hence continuous Saturation of Oxygen (Spo2), End Tidal Carbon dioxide (EtCo2) monitoring on Capnostream monitor with Integrated Pulmonary Index (IPI) was organized in high dependency unit...
July 2016: Sleep Science
https://www.readbyqxmd.com/read/28116675/anesthetic-considerations-for-patients-with-esophageal-achalasia-undergoing-peroral-endoscopic-myotomy-a-retrospective-case-series-review
#11
Benjamin Löser, Yuki B Werner, Mark A Punke, Bernd Saugel, Sebastian Haas, Daniel A Reuter, Oliver Mann, Anna Duprée, Guido Schachschal, Thomas Rösch, Martin Petzoldt
PURPOSE: Peroral endoscopic myotomy (POEM) is a novel technique for treating esophageal achalasia. During POEM, carbon dioxide (CO2) is insufflated to aid surgical dissection, but it may inadvertently track into surrounding tissues, causing systemic CO2 uptake and tension capnoperitoneum. This in turn may affect cardiorespiratory function. This study quantified these cardiorespiratory effects and treatment by hyperventilation and percutaneous abdominal needle decompression (PND). METHODS: One hundred and seventy-three consecutive patients who underwent POEM were included in this four-year retrospective study...
January 23, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/28114921/prevention-of-hypothermia-in-patients-undergoing-orthotopic-liver-transplantation-using-the-humigard%C3%A2-open-surgery-humidification-system-a-prospective-randomized-pilot-and-feasibility-clinical-trial
#12
RANDOMIZED CONTROLLED TRIAL
Laurence Weinberg, Andrew Huang, Daniel Alban, Robert Jones, David Story, Larry McNicol, Brett Pearce
BACKGROUND: Perioperative thermal disturbances during orthotopic liver transplantation (OLT) are common. We hypothesized that in patients undergoing OLT the use of a humidified high flow CO2 warming system maintains higher intraoperative temperatures when compared to standardized multimodal strategies to maintain thermoregulatory homeostasis. METHODS: We performed a randomized pilot study in adult patients undergoing primary OLT. Participants were randomized to receive either open wound humidification with a high flow CO2 warming system in addition to standard care (Humidification group) or to standard care alone (Control group)...
January 23, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28111195/endotracheal-tube-placement-confirmation-100-sensitivity-and-specificity-with-sustained-four-phase-capnographic-waveforms-in-a-cadaveric-experimental-model
#13
Salvatore Silvestri, Jay G Ladde, James F Brown, Jesus V Roa, Christopher Hunter, George A Ralls, Linda Papa
BACKGROUND: Waveform capnography is considered the gold standard for verification of proper endotracheal tube placement, but current guidelines caution that it is unreliable in low-perfusion states such as cardiac arrest. Recent case reports found that long-deceased cadavers can produce capnographic waveforms. The purpose of this study was to determine the predictive value of waveform capnography for endotracheal tube placement verification and detection of misplacement using a cadaveric experimental model...
January 19, 2017: Resuscitation
https://www.readbyqxmd.com/read/28087235/hemodynamic-consequence-of-hand-ventilation-versus-machine-ventilation-during-transport-after-cardiac-surgery
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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