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Hypoxemia during anesthesia

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https://www.readbyqxmd.com/read/29794734/postoperative-pulmonary-complications-and-hospital-stay-after-lung-resection-surgery-a-meta-analysis-comparing-nonintubated-and-intubated-anesthesia
#1
Yu Shi, Hong Yu, Lili Huang, Siyang Wang, Dongmei Chi, Chan Chen, Bin Liu
BACKGROUND: Since postoperative pulmonary complications are one of the main causes of morbidity and mortality in patients undergoing lung resection surgery, we performed a meta-analysis to compare the incidence of postoperative pulmonary complications and hospital death, and the length of hospital stay in patients who received nonintubated or intubated anesthesia during thoracoscopic surgery for lung resection and further explore the tricks in nonintubated anesthesia. METHODS: PubMed, Embase, and Cochrane Library were searched from inception to September 2017...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29784077/effects-of-ketamine-compared-with-urethane-anesthesia-on-vestibular-sensory-evoked-potentials-and-systemic-physiology-in-mice
#2
Choongheon Lee, Timothy A Jones
The injectable anesthetic mixture ketamine-xylazine is commonly used for electrophysiologic experiments in laboratory animals, especially rodents. General anesthesia can induce significant changes in systemic physiology, including those that compromise neural function, thus introducing research confounds. The extent of such concerns varies by agent. Here in mice, we compared the effects of ketamine-xylazine and urethane-xylazine anesthesia on systemic physiologic parameters and the vestibular sensory evoked potential (VsEP), a tool used commonly to assess peripheral vestibular function...
May 1, 2018: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/29717414/primary-central-sleep-apnea-and-anesthesia-a-retrospective-case-series
#3
Alexandru Alexa, Meghna P Mansukhani, Bhargavi Gali, Atousa Deljou, Juraj Sprung, Toby N Weingarten
PURPOSE: Primary (idiopathic) central sleep apnea (PCSA) is a rare central sleep-related breathing disorder characterized by increased chemoreceptor sensitivity to partial pressure of carbon dioxide, which manifests as hyperventilation followed by apnea during non-rapid eye movement sleep. The purpose of this retrospective study was to describe the postoperative course of patients who had PCSA and underwent procedures requiring anesthetic management. METHODS: Patients who received a diagnosis of PCSA at our institution and required procedural anesthesia between 1 January 2010 and 1 June 2016 underwent a comprehensive review of their health records with a focus on identifying respiratory complications...
May 1, 2018: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29695313/effects-of-ketamine-compared-with-urethane-anesthesia-on-vestibular-sensory-evoked-potentials-and-systemic-physiology-in-mice
#4
Choongheon Lee, Timothy A Jones
The injectable anesthetic mixture ketamine-xylazine is commonly used for electrophysiologic experiments in laboratory animals, especially rodents. General anesthesia can induce significant changes in systemic physiology, including those that compromise neural function, thus introducing research confounds. The extent of such concerns varies by agent. Here in mice, we compared the effects of ketamine-xylazine and urethane-xylazine anesthesia on systemic physiologic parameters and the vestibular sensory evoked potential (VsEP), a tool used commonly to assess peripheral vestibular function...
April 25, 2018: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/29686815/the-effect-of-positive-end-expiratory-pressure-during-anesthesia-on-arterial-oxygen-saturation-after-surgery-in-patient-undergoing-cesarean-section
#5
Mahmood Ganjifard, Masoumeh Samii, Samaneh Kouzegaran, Amir Sabertanha
One of the major complications of general anesthesia in the recovery room is arterial oxygen desaturation and hypoxemia. Positive end-expiratory pressure (PEEP) can improve arterial oxygen saturation by increasing FRC. This study aims to evaluate the effects of applying PEEP on arterial oxygen saturation and hemodynamic parameters in the patient undergoing cesarean section in VALIASR hospital. In this double blind clinical trial we randomly allocated 120 patients of class1 and 2 ASA scheduled to undergoing cesarean section into 3 group (in 40)...
January 12, 2018: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29621013/allergic-acute-coronary-syndrome-kounis-syndrome-in-a-young-woman-during-spinal-anesthesia-a-case-report
#6
Luis Eduardo Mendoza Vásquez
Kounis syndrome represents the concurrence of acute coronary syndromes or anginal pain with allergic, hypersensitivity, and anaphylactoid reactions that are increasingly found in clinical practice. We present a case of a young woman who experienced attacks of dyspnea, hypoxemia, and hypotension during and after spinal anesthesia. Based on the pattern of clinical symptoms and laboratory findings, she was retrospectively diagnosed with Kounis syndrome, even though no apparent trigger of hypersensitivity was found...
March 31, 2018: A&A practice
https://www.readbyqxmd.com/read/29556790/feasibility-and-safety-of-general-anesthesia-for-bronchial-thermoplasty-a-description-of-early-10-treatments
#7
Mariko Aizawa, Satoshi Ishihara, Takeshi Yokoyama, Katsuyuki Katayama
Bronchial thermoplasty (BT) is a recently introduced bronchoscopic treatment for patients with asthma refractory to pharmacotherapy. Intraprocedural sedation management is important for successful performance of BT. However, the results of general anesthesia in patients undergoing BT have not been well described. The aim of this study was to evaluate the feasibility and safety of general anesthesia in patients undergoing BT. We retrospectively reviewed the records of 10 consecutive BT treatments performed under general anesthesia in 4 patients...
March 20, 2018: Journal of Anesthesia
https://www.readbyqxmd.com/read/29391879/combined-acupuncture-and-general-anesthesia-on-immune-and-cognitive-function-in-elderly-patients-following-subtotal-gastrectomy-for-gastric-cancer
#8
Ningke Wang, Yangwen Ou, Wenxiang Qing
This study investigated the effects of acupuncture combined with general anesthesia on postoperative immune and cognitive functions in elderly patients undergoing subtotal gastrectomy. We recruited 96 elderly patients who received anesthesia for subtotal gastrectomy and randomly divided them into control (n=48) and experimental (n=48) groups. The control group received general anesthesia and the experimental group received combined acupuncture and general anesthesia. We measured hemodynamic immediately before and after anesthesia induction, and immune observations before and after surgery...
January 2018: Oncology Letters
https://www.readbyqxmd.com/read/29183321/effects-of-controlled-hypoxemia-or-hypovolemia-on-global-and-intestinal-oxygenation-and-perfusion-in-isoflurane-anesthetized-horses-receiving-an-alpha-2-agonist-infusion
#9
Klaus Hopster, Liza Wittenberg-Voges, Florian Geburek, Charlotte Hopster-Iversen, Sabine B R Kästner
BACKGROUND: Aim of this prospective experimental study was to assess effects of systemic hypoxemia and hypovolemia on global and gastrointestinal oxygenation and perfusion in anesthetized horses. Therefore, we anesthetized twelve systemically healthy warmblood horses using either xylazine or dexmedetomidine for premedication and midazolam and ketamine for induction. Anesthesia was maintained using isoflurane in oxygen with either xylazine or dexmedetomidine and horses were ventilated to normocapnia...
November 28, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29119733/administration-of-fentanyl-via-a-slow-intravenous-fluid-line-compared-with-rapid-bolus-alleviates-fentanyl-induced-cough-during-general-anesthesia-induction
#10
Min-Qiang Liu, Feng-Xian Li, Ya-Kun Han, Jun-Yong He, Hao-Wen Shi, Li Liu, Ren-Liang He
OBJECTIVE: Fentanyl-induced cough (FIC) is a common complication with a reported incidence from 18.0% to 74.4% during general anesthesia induction. FIC increases the intrathoracic pressure and risks of postoperative nausea and vomiting, yet available treatments are limited. This study was designed to investigate whether administering fentanyl via a slow intravenous fluid line can effectively alleviate FIC during induction of total intravenous general anesthesia. METHODS: A total number of 1200 patients, aged 18-64 years, were enrolled, all of whom were American Society of Anesthesiologists (ASA) grade I or II undergoing scheduled surgeries...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/29057764/evaluation-of-total-intravenous-anesthesia-with-propofol-guaifenesin-medetomidine-and-alfaxalone-guaifenesin-medetomidine-in-thoroughbred-horses-undergoing-castration
#11
Motoki Aoki, Ai Wakuno, Asuka Kushiro, Naomi Mae, Masashi Kakizaki, Shun-Ichi Nagata, Minoru Ohta
Anesthetic and cardiorespiratory effects of total intravenous anesthesia (TIVA) technique using propofol-guaifenesin-medetomidine (PGM) and alfaxalone-guaifenesin-medetomidine (AGM) were preliminarily evaluated in Thoroughbred horses undergoing castration. Twelve male Thoroughbred horses were assigned randomly into two groups. After premedication with intravenous (IV) administrations of medetomidine (5.0 µg/kg) and butorphanol (0.02 mg/kg), anesthesia was induced with guaifenesin (10 mg/kg IV), followed by either propofol (2...
December 22, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29051828/intubation-following-high-dose-rocuronium-in-a-cat-with-protracted-laryngospasm
#12
Graeme M Doodnaught, Daniel Sj Pang
CASE SUMMARY: An 11-year-old spayed female domestic shorthair cat with a history of laryngospasm at induction of general anesthesia presented for dental evaluation and treatment. The cat was premedicated with hydromorphone (0.05 mg/kg) and alfaxalone (0.5 mg/kg) intravenously, pre-oxygenated for 5 mins (3 l/min, face mask) and anesthesia was induced with alfaxalone (to effect) intravenously. Lidocaine (0.1 ml, 2%) was applied topically to the arytenoid cartilages following loss of jaw tone...
July 2017: JFMS Open Reports
https://www.readbyqxmd.com/read/29027770/bispectral-index-and-non-bispectral-index-anesthetic-protocols-on-postoperative-recovery-outcomes
#13
Min-Hsien Chiang, Shao-Chun Wu, Shih-Wei Hsu, Jo-Chi Chin
INTRODUCTION: The study aimed to compare Bispectral Index (BIS) and non-BIS anesthetic protocols on postoperative recovery outcomes. EVIDENCE ACQUISITION: Medline, PubMed, Cochrane, EMBASE, and Google Scholar databases were searched until January 21, 2016. EVIDENCE SYNTHESIS: Twenty-six studies were included with a total of 9537 patients. BIS monitoring was significantly associated with shorter time to eye opening (P=0.001), time to extubation (P<0...
February 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28956237/usefulness-of-oxygen-reserve-index-ori%C3%A2-a-new-parameter-of-oxygenation-reserve-potential-for-rapid-sequence-induction-of-general-anesthesia
#14
Keisuke Yoshida, Tsuyoshi Isosu, Yoshie Noji, Makiko Hasegawa, Yuzo Iseki, Rieko Oishi, Tsuyoshi Imaizumi, Norie Sanbe, Shinju Obara, Masahiro Murakawa
The oxygen reserve index (ORi™) is a new parameter for monitoring oxygen reserve noninvasively. The aim of this study was to examine the usefulness of ORi for rapid sequence induction (RSI). Twenty adult patients who were scheduled for surgical procedures under general anesthesia were enrolled. After attaching a sensor capable of measuring ORi, oxygen (6 L/min) and fentanyl (2 μg/kg) were administered. After 3 min, propofol 2 mg/kg and rocuronium 1 mg/kg were administered without ventilation. Regardless of changes in ORi, tracheal intubation was performed either 2 min after administration of propofol or when percutaneous oxygen saturation (SpO2 ) reached 98%...
September 27, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28920806/accuracy-of-noninvasive-anesthetic-monitoring-in-the-anesthetized-giraffe-giraffa-camelopardalis
#15
Mads F Bertelsen, Carsten Grøndahl, George F Stegmann, Cathrine Sauer, Niels H Secher, J Michael Hasenkam, Mads Damkjær, Christian Aalkjær, Tobias Wang
This study evaluated the accuracy of pulse oximetry, capnography, and oscillometric blood pressure during general anesthesia in giraffes (Giraffa camelopardalis). Thirty-two giraffes anesthetized for physiologic experiments were instrumented with a pulse oximeter transmittance probe positioned on the tongue and a capnograph sampling line placed at the oral end of the endotracheal tube. A human size 10 blood pressure cuff was placed around the base of the tail, and an indwelling arterial catheter in the auricular artery continuously measured blood pressure...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28913499/perioperative-hyperoxia-perhaps-a-malady-in-disguise
#16
REVIEW
Yalim Dikmen, Aybike Onur
Oxygen is an element, which is used liberally during several medical procedures. The use of oxygen during perioperative care is a controversial issue. Anesthesiologists use oxygen to prevent hypoxemia during surgical procedures, but the effects of its liberal use can be harmful. Another argument for using high oxygen concentrations is to prevent surgical site infections by increasing oxygen levels at the incision site. Although inconclusive, literature concerning the use of high oxygen concentrations during anesthesia show that this approach may cause hemodynamic changes, altered microcirculation and increased oxidative stress...
April 2017: Romanian journal of anaesthesia and intensive care
https://www.readbyqxmd.com/read/28852473/evaluation-of-operating-room-reverse-trendelenburg-positioning-and-its-effect-on-postoperative-hypoxemia-aspiration-and-length-of-stay-a-retrospective-study-of-consecutive-patients
#17
C Michael Dunham, Barbara M Hileman, Amy E Hutchinson, Tamara Antonaccio, Elisha A Chance, Gregory S Huang, Gregory Szmaj, Kristen Calabro, Cynthia Bishop, Tyson T Schrickel
BACKGROUND: In 2014, this group published an investigation of surgical patients from 2012 who had substantial rates of postoperative hypoxemia (POH) and perioperative pulmonary aspiration (POPA). Therefore, we investigated whether intraoperative reverse Trendelenburg positioning (RTP) decreases POH and POPA rates. METHODS: Consecutive ASA I-IV surgical patients who had preoperative pulmonary stability requiring general anesthesia with endotracheal intubation were evaluated...
2017: Perioperative Medicine
https://www.readbyqxmd.com/read/28802605/laparoscopic-cholecystectomy-under-neuraxial-anesthesia-compared-with-general-anesthesia-systematic-review-and-meta-analyses
#18
REVIEW
Marcelo A Longo, Bárbara T Cavalheiro, Getúlio R de Oliveira Filho
BACKGROUND: Pneumoperitoneum during laparoscopic cholecystectomy (LC) can cause hypercapnia, hypoxemia, hemodynamic changes and shoulder pain. General anesthesia (GA) enables the control of intraoperative pain and ventilation. The need for GA has been questioned by studies suggesting that neuraxial anesthesia (NA) is adequate for LC. STUDY OBJECTIVE: To quantify the prevalence of intraoperative pain and to verify whether evidence on the maintenance of ventilation, circulation and surgical anesthesia during NA compared with GA is consistent...
September 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28759496/addition-of-nasal-cannula-can-either-impair-or-enhance-preoxygenation-with-a-bag-valve-mask-a-randomized-crossover-design-study-comparing-oxygen-flow-rates
#19
David McQuade, Matthew R Miller, Clare Hayes-Bradley
BACKGROUND: A critical safety component of emergency anesthesia is the avoidance of hypoxemia during the apneic phase of a rapid sequence intubation. Preoxygenation with a bag valve mask (BVM) or anesthetic circuit may be improved with supplemental oxygen by nasal cannula (NC) if there is a mask leak. In addition, NC is recommended for apneic oxygenation after induction and may be placed before preoxygenation. However, the optimum NC flow rate for preoxygenation or whether the presence of NC alone creates a mask leak remains unclear...
April 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28759491/the-evaluation-of-a-noninvasive-respiratory-volume-monitor-in-pediatric-patients-undergoing-general-anesthesia
#20
Andrea D Gomez-Morad, Joseph P Cravero, Brian C Harvey, Rachel Bernier, Erin Halpin, Brian Walsh, Viviane G Nasr
BACKGROUND: Pediatric patients following surgery are at risk for respiratory compromise such as hypoventilation and hypoxemia depending on their age, comorbidities, and type of surgery. Quantitative measurement of ventilation in nonintubated infants/children is a difficult and inexact undertaking. Current respiratory assessment in nonintubated patients relies on oximetry data, respiratory rate (RR) monitors, and subjective clinical assessment, but there is no objective measure of respiratory parameters that could be utilized to predict early respiratory compromise...
December 2017: Anesthesia and Analgesia
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