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MAC Anesthesia

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https://www.readbyqxmd.com/read/29682454/awake-transcatheter-aortic-valve-replacement-an-anesthesiologist-s-perspective
#1
Jiapeng Huang, Sheng Wang, Jiakai Lu
Transcatheter aortic replacement has become the standard of care for patients with severe aortic valve stenosis. With advancement of technologies, this technique has become much safer and simpler. Both general anesthesia (GA) and monitored anesthesia care (MAC) have been provided for transcatheter aortic valve replacement (TAVR). MAC or awake transcatheter valve replacement was shown to carry similar clinical outcomes with significantly reduced length of stay. We reviewed the literature and presented our practical minimalist anesthesia approach to awake TAVR...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29672287/early-administration-of-magnesium-sulfate-during-open-fetal-myelomeningocele-repair-reduces-the-dose-of-inhalational-anesthesia
#2
Roopali Donepudi, Melissa Huynh, Kenneth J Moise, Ramesha Papanna, Anthony Johnson, Mary Austin, KuoJen Tsao, Ranu Jain
INTRODUCTION: Optimal uterine relaxation is achieved through higher minimum alveolar concentration (MAC) of inhalational anesthetics, increasing risks to mother and fetus. Our objective was to determine if earlier administration of magnesium sulfate would reduce the requirement of inhalational anesthetics in fetal myelomeningocele repair. MATERIALS AND METHODS: Prospective observational study of fetal myelomeningocele repair was performed from September 2011 to August 2017...
April 19, 2018: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/29668768/cardiovascular-and-respiratory-effects-of-lumbosacral-epidural-bupivacaine-in-isoflurane-anesthetized-dogs-the-effects-of-two-volumes-of-0-25-solution
#3
Raquel Sartori Gonçalves Dias, João Henrique Neves Soares, Douglas Dos Santos E Castro, Maria Alice Kuster de Albuquerque Gress, Marcela Lemos Machado, Pablo E Otero, Fabio Otero Ascoli
The purpose of this study was to compare cardiovascular and respiratory effects of two volumes of bupivacaine 0.25% (0.2 mL kg-1-treatment BUP02-and 0.4 mL kg-1 -treatment BUP04) administered epidurally at the lumbosacral intervertebral space in dogs anesthetized with isoflurane. This experimental prospective randomized crossover design trial used six mixed breed adult dogs, four neutered males and two spayed females. Each dog was anesthetized on three different occasions: the first for isoflurane minimum alveolar concentration (MAC) measurement, and the following two assigned treatments (BUP02 or BUP04)...
2018: PloS One
https://www.readbyqxmd.com/read/29629959/baseline-cerebral-metabolic-rate-is-a-critical-determinant-of-the-cerebral-vasodilating-potency-of-volatile-anesthetic-agents
#4
John C Drummond
Halothane is commonly viewed as a more potent cerebral vasodilator than isoflurane. It was speculated that the lesser vasodilation caused by isoflurane might be the result of the greater reduction in cerebral metabolic rate (CMR) that it causes, and that the relative vasodilating potencies of halothane and isoflurane would be similar if the two agents were administered in a situation that precluded volatile-agent-induced depression of CMR. To test this hypothesis, cerebral blood flow (CBF) and the cerebral metabolic rate for oxygen (CMRO2) were measured in two groups of rabbits before and after the administration of 0...
April 9, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29628570/effect-of-c-mac-video-laryngoscope-aided-intubations-using-d-blade-on-incidence-and-severity-of-postoperative-sore-throat
#5
Pulak Tosh, Dilesh Kadapamannil, Sunil Rajan, Naina Narayani, Lakshmi Kumar
Background: Video laryngoscope-aided intubations require less force to align oral, pharyngeal, and laryngeal planes to visualize the glottis opening during intubation. Aim: The primary objective of the study was to assess the incidence and severity of postoperative sore throat (POST) in patients who were intubated with C-MAC video laryngoscope using D-blade versus traditional Macintosh laryngoscope. Settings and Design: This prospective, randomized, open label study was conducted in a tertiary care institution...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29582946/-effects-of-cannabis-extract-premedication-on-anesthetic-depth
#6
Carlos Ibera, Ben Shalom, Fayez Saifi, Joshua Shruder, Elyad Davidson
BACKGROUND: Cannabis is the most widely used illicit drug in the world, used by approximately 2.7-4.9% of the world's population, and 7.6-10.2% of Israel's adults. During the past few years, legal systems around the world have enacted large scale adoption of the legalization of both medical and recreational cannabis. Anesthetists should therefore be prepared to treat patients who used cannabis and are undergoing elective or emergency operations. However, the interactions between cannabinoids and general anesthetic agents and the possible implications for patient care are not yet fully understood...
March 2018: Harefuah
https://www.readbyqxmd.com/read/29546845/motion-compensation-for-mri-compatible-patient-mounted-needle-guide-device-estimation-of-targeting-accuracy-in-mri-guided-kidney-cryoablations
#7
Junichi Tokuda, Laurent Chauvin, Brian Ninni, Takahisa Kato, Franklin King, Kemal Tuncali, Nobuhiko Hata
Patient-mounted needle guide devices for
 percutaneous ablations are vulnerable to patient motion. The objective of this study is to develop and evaluate a software system for MRI-compatible patient-mounted needle guide device that can adaptively compensate for the displacement of the device due to the patient motion using a novel image-based automatic device-to-image registration.
 
 Materials and Methods. We developed a software system for an MRI-compatible patient-mounted needle guide device for percutaneous ablations...
March 16, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29509579/does-equi-minimum-alveolar-concentration-value-ensure-equivalent-analgesic-or-hypnotic-potency-a-comparison-between-desflurane-and-sevoflurane
#8
Kyoung-Ho Ryu, Keulame Song, Tae-Young Lim, Won-Jun Choi, Yun-Hong Kim, Hyun-Soo Kim
BACKGROUND: Minimum alveolar concentration (MAC) has traditionally been used to compare the potency of volatile anesthetics. However, as it reflects the spinal mechanism of immobility rather than the cerebral mechanism of analgesia and hypnosis, it is doubtful that equi-MAC connotes equivalent analgesic or hypnotic potency. The level of analgesia and hypnosis can be assessed using surgical pleth index and bispectral index (BIS) values, respectively. This study was designed to compare the surgical pleth index and BIS values produced by equi-MAC of desflurane and sevoflurane in patients undergoing single-agent volatile anesthesia...
June 2018: Anesthesiology
https://www.readbyqxmd.com/read/29465200/-the-choice-of-tracheal-intubation-method-in-reconstructive-maxillo-facial-surgery-with-difficult-airways
#9
A Yu Zaytcev, K V Dubrovin, V A Svetlov
BACKGROUND: The development of modern video - and endoscopic equipment allows for revision and adjust to modern protocols for maintaining patency of the difficult airway, especially in maxillofacial or ENT -surgery. THE PURPOSE OF THE STUDY: Comparison the efficacy ofvarious methods of maintaining the airway patency in the practice of reconstructive maxillofacial surgery. MATERIALS AND METHODS: 89 patients, who were divided into 4 groups, were examined...
September 2017: Anesteziologiia i Reanimatologiia
https://www.readbyqxmd.com/read/29461406/interventional-procedures-outside-of-the-operating-room-results-from-the-national-anesthesia-clinical-outcomes-registry
#10
Beverly Chang, Alan D Kaye, James H Diaz, Benjamin Westlake, Richard P Dutton, Richard D Urman
OBJECTIVES: This study examines the impact of procedural locations and types of anesthetics on patient outcomes in non-operating room anesthesia (NORA) locations. The National Anesthesia Clinical Outcomes Registry database was examined to compare OR to NORA anesthetic complications and patient demographics. METHODS: The National Anesthesia Clinical Outcomes Registry database was examined for all patient procedures from 2010 to 2013. A total of 12,252,846 cases were analyzed, with 205 practices contributing information, representing 1494 facilities and 7767 physician providers...
March 2018: Journal of Patient Safety
https://www.readbyqxmd.com/read/29445064/the-validity-of-anesthetic-protocols-for-the-surgical-procedure-of-castration-in-rats
#11
Atsushi Tsukamoto, Natsuko Niino, Mizuho Sakamoto, Risa Ohtani, Tomo Inomata
To achieve surgical anesthesia in animal experimentation, it is necessary to select the appropriate anesthetic protocol by considering its pharmacological properties and the surgical procedure to be performed. However, few studies have investigated the validity of anesthetic protocols under surgical conditions in small rodents. The present study aimed to clarify the pharmacological properties of 4 anesthetic protocols during the surgical procedure of castration in rats. Eight-week-old male Wistar rats were anesthetized with anesthetics, including the combination of ketamine and xylazine (K/X), the combination of medetomidine, midazolam, and butorphanol (M/M/B), and isoflurane, and sevoflurane...
February 14, 2018: Experimental Animals
https://www.readbyqxmd.com/read/29442057/inguinal-hernia-repair-in-day-surgery-the-role-of-mac-monitored-anesthesia-care-with-remifentanil
#12
P Palumbo, S Usai, C Amatucci, B Perotti, L Ruggeri, G Illuminati, G Tellan
BACKGROUND: The extension of indications for procedures in a Day Surgery (DS) setting has led to changes in the anesthetic and surgical treatment of Inguinal Hernias (IH). According to the recommendations of the European Hernia Society, the treatment of IH in DS units should be performed under Monitored Anesthesia Care (MAC). PATIENTS AND METHODS: 960 patients underwent IH repairs over a period of 24 months. The patients were randomly divided into two groups: R (remifentanil) and F (fentanyl); the group F was considered as a control group...
November 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/29416460/endotrol-tracheal-tube-and-mcgrath-mac-are-an-effective-combination-for-oral-tracheal-intubation
#13
Azusa Shimazaki, Hironobu Ueshima, Hiroshi Otake
Background: Tracheal intubation using the 2nd -generation video laryngoscope sometimes cannot be performed easily because there is no functional endotracheal tube (ETT) guide. Therefore, a rigid stylet is often required during tracheal intubation. The Endotrol® tracheal tube (Endotrol) is a single use ETT that whole tube can be bent and slide easily into the trachea. We studied the intubation ease of a combination of an Endtrol and the McGrath® video laryngoscope (McGrath), which is one of the 2nd -generation video laryngoscopes...
January 2018: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/29416249/evaluation-of-effect-of-entropy-monitoring-on-isoflurane-consumption-and-recovery-from-anesthesia
#14
Kush Ashokkumar Goyal, Anitha Nileshwar, Lokvendra Singh Budania, Yogesh Gaude, Shaji Mathew, Shriram Vaidya
Background and Aims: Entropy monitoring entails measurement of the effect of anesthetic on its target organ rather than merely the concentration of anesthetic in the brain (indicated by alveolar concentration based on which minimum alveolar concentration [MAC] is displayed). We proposed this prospective randomised study to evaluate the effect of entropy monitoring on isoflurane consumption and anesthesia recovery period. Material and Methods: Sixty patients undergoing total abdominal hysterectomy under general anesthesia using an endotracheal tube were enrolled in either clinical practice (CP) or entropy (E) group...
October 2017: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/29388487/direct-cost-comparison-of-open-carpal-tunnel-release-in-different-venues
#15
Logan W Carr, Brad Morrow, Brett Michelotti, Randy M Hauck
BACKGROUND: The increased efficiency and cost savings have led many surgeons to move their practice away from the traditional operating room (OR) or outpatient surgery center (OSC) and into the clinic setting. With the cost of health care continuing to rise, the venue with the lowest cost should be utilized. We performed a direct cost analysis of a single surgeon performing an open carpal tunnel release in the OR, OSC, and clinic. METHODS: Four treatment groups were prospectively studied: the hospital OR with monitored anesthesia care (OR-MAC), OSC with MAC (OSC-MAC), OSC with local anesthesia (OSC-local), and clinic with local anesthesia (clinic)...
January 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29379665/the-oxidative-anti-oxidative-effects-of-sevoflurane-on-reproductive-system-of-females-an-experimental-study
#16
Hatice Yılmaz Doğru, İsmail Benli, Serkan Doğru
Objective: A permanent balance exists between the production and elimination of reactive oxygen species in all living organisms. The aim of this study was to evaluate the effects of sevoflurane possibly causing an imbalance in the equation of reactive oxygen species on the female rat reproductive system. Materials and Methods: A total of 30 adult female Wistar-albino rats were placed into an anesthesia chamber to administer sevoflurane. Rats were randomly divided into six groups, each group consisting of five rats: the control group received 2 L/min O2 18 min/day for seven days; the first group received 1 minimum alveolar concentration (MAC) of sevoflurane and 2 L/min O2 18 min/day for seven days; the second group received 1 MAC of sevoflurane and 2 L/min O2 18 min/day for seven days with no treatment for the next seven days; the third group received 1 MAC of sevoflurane and 2 L/min O2 18 min/day for 14 days; the fourth group received 1 MAC of sevoflurane and 2 L/min O2 18 min/day for 14 days with no treatment for the next seven days; and the fifth group received 1 MAC of sevoflurane and 2 L/min O2 18 min/day for 14 days with no treatment for the next 14 days...
December 2017: Turkish Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29362046/the-efficacy-of-intraoperative-eeg-to-predict-the-occurrence-of-emergence-agitation-in-the-postanesthetic-room-after-sevoflurane-anesthesia-in-children
#17
Young-Eun Jang, Sung-Ae Jeong, Sun-Young Kim, In-Kyung Song, Ji-Hyun Lee, Jin-Tae Kim, Hee-Soo Kim
PURPOSE: Emergence agitation (EA) is common after sevoflurane anesthesia, but there are no definite predictors. This study investigated whether intraoperative electroencephalography (EEG) can indicate the occurrence of EA in children. DESIGN: A prospective predictive study design was used. METHODS: EEG-derived parameters (spectral edge frequency 95, beta, alpha, theta, and delta power) were measured at 1.0 minimum alveolar concentration (MAC) and 0...
February 2018: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/29318795/isoflurane-s-effect-on-intraoperative-systolic-left-ventricular-performance-in-cardiac-valve-surgery-patients
#18
Ju Deok Kim, Ilsoon Son, Won Kyoung Kwon, Tae Yun Sung, Hanafi Sidik, Karam Kim, Hyun Kang, Jiyon Bang, Gwi Eun Yeo, Dong Kyu Lee, Tae Yop Kim
BACKGROUND: Isoflurane, a common anesthetic for cardiac surgery, reduced myocardial contractility in many experimental studies, few studies have determined isoflurane's direct impact on the left ventricular (LV) contractile function during cardiac surgery. We determined whether isoflurane dose-dependently reduces the peak systolic velocity of the lateral mitral annulus in tissue Doppler imaging (S') in patients undergoing cardiac surgery. METHODS: During isoflurane-supplemented remifentanil-based anesthesia for patients undergoing cardiac surgery with preoperative LV ejection fraction greater than 50% (n = 20), we analyzed the changes of S' at each isoflurane dose increment (1...
January 22, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29318355/an-enhanced-recovery-after-surgery-eras-protocol-for-ambulatory-anorectal-surgery-reduced-postoperative-pain-and-unplanned-returns-to-care-after-discharge
#19
Aaron B Parrish, Sean M O'Neill, Steven R Crain, Tara A Russell, Deepak K Sonthalia, Vu T Nguyen, Armen Aboulian
BACKGROUND: Ambulatory surgery for anorectal procedures has been proven to be safe and effective. Specific perioperative pathways combining multiple interventions have been shown to optimize recovery and outcomes associated with inpatient colorectal surgery. However, there are no major studies describing and evaluating a standardized protocol for ambulatory anorectal surgery. The purpose of this study was to evaluate the outcomes of a modified enhanced recovery after surgery (ERAS) protocol for ambulatory anorectal surgery...
January 9, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29284864/effect-of-intravenous-magnesium-sulfate-on-the-minimum-alveolar-concentrations-of-desflurane-using-bispectral-index-monitoring-a-prospective-randomized-double-blind-controlled-study
#20
Mohd Rameez Riaz, Vikram Mahajan, Sadaf Syed, Riyaz Ahmad
Background: Magnesium sulfate has been implicated to influence the minimum alveolar concentration (MAC) of various volatile anesthetics, but its effect on desflurane remains unanswered so far. Aim: To study the effect of perioperative intravenous magnesium sulfate on MAC of desflurane using bispectral index (BIS) monitoring. Settings: Operating room of a tertiary care hospital. Design: A prospective, randomized, controlled, double-blind clinical trial...
October 2017: Anesthesia, Essays and Researches
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