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Grace Lim, Francesca L Facco, Naveen Nathan, Jonathan H Waters, Cynthia A Wong, Holger K Eltzschig
Obstetric anesthesia has evolved over the course of its history to encompass comprehensive aspects of maternal care, ranging from cesarean delivery anesthesia and labor analgesia to maternal resuscitation and patient safety. Anesthesiologists are concerned with maternal and neonatal outcomes, and with preventing and managing complications that may present during childbirth. The current review will focus on recent advances in obstetric anesthesia, including labor anesthesia and analgesia, cesarean delivery anesthesia and analgesia, the effects of maternal anesthesia on breastfeeding and fever, and maternal safety...
March 21, 2018: Anesthesiology
Grace Chai, Jing Xu, James Osterhout, Mark A Liberatore, Kathleen L Miller, Carolyn Wolff, Marisa Cruz, Peter Lurie, Gerald Dal Pan
BACKGROUND: The opioid epidemic, driven in part by increased prescribing, is a public health emergency. This study examines dispensed prescription patterns and approvals of new opioid analgesic products to investigate whether the introduction of these new drugs increases prescribing. METHODS: Prescribing patterns based on dispensed prescription claims from the U.S. retail setting were assessed with new brand and generic opioid analgesic products approved in the United States from 1997 through 2015...
March 20, 2018: Anesthesiology
Satoshi Suzuki, Yuko Mihara, Yukiko Hikasa, Shuji Okahara, Takuma Ishihara, Ayumi Shintani, Hiroshi Morimatsu, Akiko Sato, Sachio Kusume, Hidekuni Hidaka, Hidehiko Yatsuzuka, Masahiro Okawa, Makoto Takatori, Shinsei Saeki, Takeshi Samuta, Hiroaki Tokioka, Toshiaki Kurasako, Masato Maeda, Mamoru Takeuchi, Akihito Hirasaki, Michio Kitaura, Hideki Kajiki, Osamu Kobayashi, Hiroshi Katayama, Hideki Nakatsuka, Satoshi Mizobuchi, Seiji Sugimoto, Masataka Yokoyama, Kazuhito Kusudo, Kensuke Shiraishi, Toshio Iwaki, Tatsuhiko Komatsu, Yasuo Hirai, Tetsufumi Sato, Masakazu Kimura, Takeshi Yasukawa, Motonobu Kimura, Masahiro Taniguchi, Yutaka Shimoda, Yoji Kobayashi, Mitsunori Tsukioki, Nobuki Manabe, Eiji Ando, Makoto Kosaka, Takashi Tsukiji, Chika Tokura, Yasuhiro Asao, Masatoshi Sugiyama, Kozo Seto
BACKGROUND: Intraoperative oxygen management is poorly understood. It was hypothesized that potentially preventable hyperoxemia and substantial oxygen exposure would be common during general anesthesia. METHODS: A multicenter, cross-sectional study was conducted to describe current ventilator management, particularly oxygen management, during general anesthesia in Japan. All adult patients (16 yr old or older) who received general anesthesia over 5 consecutive days in 2015 at 43 participating hospitals were identified...
March 19, 2018: Anesthesiology
Albert Dahan, Rutger van der Schrier, Terry Smith, Leon Aarts, Monique van Velzen, Marieke Niesters
The ventilatory control system is highly vulnerable to exogenous administered opioid analgesics. Particularly respiratory depression is a potentially lethal complication that may occur when opioids are overdosed or consumed in combination with other depressants such as sleep medication or alcohol. Fatalities occur in acute and chronic pain patients on opioid therapy and individuals that abuse prescription or illicit opioids for their hedonistic pleasure. One important strategy to mitigate opioid-induced respiratory depression is cotreatment with nonopioid respiratory stimulants...
March 19, 2018: Anesthesiology
Frederik Flenner, Nicole Arlt, Mahtab Nasib, Sophie Schobesberger, Thea Koch, Ursula Ravens, Felix Friedrich, Viacheslav Nikolaev, Torsten Christ, Sebastian N Stehr
BACKGROUND: Systemic toxicity of local anesthetics is predominantly complicated by their myocardial toxicity. Especially long-acting local anesthetics exert a negative inotropic effect that has been described at lower concentrations than defined for blockade of myocardial ion channels. We evaluated the negative inotropic effect of bupivacaine at a concentration described for clinical toxicity testing the hypothesis that negative inotropy is a result of reduced Ca sensitivity rather than blockade of ion channels...
March 16, 2018: Anesthesiology
Peter Kranke, Sergio D Bergese, Harold S Minkowitz, Timothy I Melson, David G Leiman, Keith A Candiotti, Ngai Liu, Leopold Eberhart, Ashraf S Habib, Jan Wallenborn, Anthony L Kovac, Pierre Diemunsch, Gabriel Fox, Tong J Gan
BACKGROUND: Postoperative nausea and vomiting causes distress for patients and can prolong care requirements. Consensus guidelines recommend use of multiple antiemetics from different mechanistic classes as prophylaxis in patients at high risk of postoperative nausea and vomiting. The prophylactic efficacy of the dopamine D2/D3 antagonist amisulpride in combination with other antiemetics was investigated. METHODS: This double-blind, randomized, placebo-controlled, international, multicenter trial was conducted in 1,147 adult surgical patients having three or four postoperative nausea and vomiting risk factors...
March 15, 2018: Anesthesiology
Thomas K Henthorn, Susan K Mikulich-Gilbertson
No abstract text is available yet for this article.
March 15, 2018: Anesthesiology
Justyna Bartoszko, Duminda N Wijeysundera, Keyvan Karkouti, Jeannie Callum, Vivek Rao, Mark Crowther, Hilary P Grocott, Ruxandra Pinto, Damon C Scales, Blaine Achen, Sukhpal Brar, Doug Morrison, David Wong, Jean S Bussières, Tonya de Waal, Christopher Harle, Étienne de Médicis, Charles McAdams, Summer Syed, Diem Tran, Terry Waters
BACKGROUND: Research into major bleeding during cardiac surgery is challenging due to variability in how it is scored. Two consensus-based clinical scores for major bleeding: the Universal definition of perioperative bleeding and the European Coronary Artery Bypass Graft (E-CABG) bleeding severity grade, were compared in this substudy of the Transfusion Avoidance in Cardiac Surgery (TACS) trial. METHODS: As part of TACS, 7,402 patients underwent cardiac surgery at 12 hospitals from 2014 to 2015...
March 15, 2018: Anesthesiology
Andra E Duncan, Daniel I Sessler, Hiroaki Sato, Tamaki Sato, Keisuke Nakazawa, George Carvalho, Roupen Hatzakorzian, Takumi Codere-Maruyama, Alaa Abd-Elsayed, Somnath Bose, Tamer Said, Maria Mendoza-Cuartas, Hyndhavi Chowdary, Edward J Mascha, Dongsheng Yang, A Marc Gillinov, Thomas Schricker
BACKGROUND: Hyperinsulinemic normoglycemia augments myocardial glucose uptake and utilization. We tested the hypothesis that hyperinsulinemic normoglycemia reduces 30-day mortality and morbidity after cardiac surgery. METHODS: This dual-center, parallel-group, superiority trial randomized cardiac surgical patients between August 2007 and March 2015 at the Cleveland Clinic, Cleveland, Ohio, and Royal Victoria Hospital, Montreal, Canada, to intraoperative glycemic management with (1) hyperinsulinemic normoglycemia, a fixed high-dose insulin and concomitant variable glucose infusion titrated to glucose concentrations of 80 to 110 mg · dl; or (2) standard glycemic management, low-dose insulin infusion targeting glucose greater than 150 mg · dl...
March 14, 2018: Anesthesiology
(no author information available yet)
No abstract text is available yet for this article.
March 13, 2018: Anesthesiology
(no author information available yet)
No abstract text is available yet for this article.
March 13, 2018: Anesthesiology
Abirami Kumaresan, Robert Gerber, Ariel Mueller, Stephen H Loring, Daniel Talmor
BACKGROUND: The effects of prone positioning on esophageal pressures have not been investigated in mechanically ventilated patients. Our objective was to characterize effects of prone positioning on esophageal pressures, transpulmonary pressure, and lung volume, thereby assessing the potential utility of esophageal pressure measurements in setting positive end-expiratory pressure (PEEP) in prone patients. METHODS: We studied 16 patients undergoing spine surgery during general anesthesia and neuromuscular blockade...
March 9, 2018: Anesthesiology
Satoshi Toyama, Naohito Shimoyama, Yugo Tagaito, Hiroshi Nagase, Tsuyoshi Saitoh, Masashi Yanagisawa, Megumi Shimoyama
BACKGROUND: Sleepiness and decrease in attention are dose-limiting side effects of opioids. The orexin/hypocretin system plays an important role in maintaining wakefulness. This study aimed to explore the potential of a nonpeptide orexin receptor agonist to alleviate morphine-induced sedative effects. METHODS: Morphine sedative effects were evaluated as changes in electroencephalogram (EEG), locomotor activity, and acoustic startle response in rats (n = 5 to 9 per group)...
March 8, 2018: Anesthesiology
Marit Poffers, Nathalie Bühne, Christine Herzog, Anja Thorenz, Rongjun Chen, Faikah Güler, Axel Hage, Andreas Leffler, Frank Echtermeyer
BACKGROUND: Voltage-gated sodium channels generate action potentials in excitable cells, but they have also been attributed noncanonical roles in nonexcitable cells. We hypothesize that voltage-gated sodium channels play a functional role during extravasation of neutrophils. METHODS: Expression of voltage-gated sodium channels was analyzed by polymerase chain reaction. Distribution of Nav1.3 was determined by immunofluorescence and flow cytometry in mouse models of ischemic heart and kidney injury...
March 6, 2018: Anesthesiology
James M Berry
No abstract text is available yet for this article.
March 6, 2018: Anesthesiology
Logan J Voss, Sebastian Karalus, Vilhelm Englund, James W Sleigh
BACKGROUND: Ketamine is a general anesthetic thought to act by antagonizing N-methyl-D-aspartate receptors. However, ketamine acts on multiple channels, many of which are potential targets-including hyperpolarization-activated cyclic nucleotide-gated and potassium channels. In this study we tested the hypothesis that potassium leak channels contribute to the anesthetic action of ketamine. METHODS: Adult mouse cortical slices (400 µm) were exposed to no-magnesium artificial cerebrospinal fluid to generate seizure-like event activity...
March 6, 2018: Anesthesiology
Jennifer M O'Brien
No abstract text is available yet for this article.
March 6, 2018: Anesthesiology
Stephen M Howell, David A Bennion, Nezar Jrebi, Hong Wang
No abstract text is available yet for this article.
March 6, 2018: Anesthesiology
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...
March 6, 2018: Anesthesiology
David A Story
No abstract text is available yet for this article.
March 5, 2018: Anesthesiology
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