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Aorta anesthesia

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https://www.readbyqxmd.com/read/27910802/near-infrared-spectroscopy-evaluated-cerebral-oxygenation-during-anesthesia
#1
Henrik Sørensen
Likely, maintained organ and notably cerebral perfusion, secures rapid recovery following anesthesia. To secure cerebral blood flow (CBF) at least mean arterial pressure (MAP) and the arterial carbon dioxide tension (PaCO2) need to be considered. CBF is "autoregulated", i.e. stays more or less stable within a MAP of 50-150 mmHg, but the lower limit appears to depend on the central blood volume and/or cardiac output, illustrated by a decrease in CBF at a MAP of 80 mmHg with a compromised central blood volume, while CBF remains constant with a MAP < 40 mmHg, if the central blood volume is maintained...
December 2016: Danish Medical Journal
https://www.readbyqxmd.com/read/27754129/os-25-04-the-changes-of-arterial-stiffness-monitored-with-cardio-ankle-vascular-index-cavi-during-raised-intracranial-pressure-in-the-rabbit
#2
Chikao Miyazaki, Mao Takahashi, Kazuhiro Shimizu, Tatsuo Chiba, Takenori Morisita, Tomoyuki Yamamoto, Nobuo Sugo, Akira Takahara, Kohji Shirai
OBJECTIVE: Cardio ankle vascular index (CAVI) is reflecting stiffness of the arterial tree from the origin of aorta to the ankles. We observed elevated CAVI in patients who suffered from apoplexy attack. To clarify the role and the mechanism by which arterial stiffness elevated just after apoplexy attack, the effect of enhanced intracranial pressure (ICP) by injecting saline into the cisterna magna of the rabbit on blood pressure, CAVI and cervical blood flow, were studied. Furthermore the role of sympathetic nerve was studied...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27650337/anesthesia-management-during-aortic-surgery-preoperative-patient-assessment
#3
REVIEW
Adrian Mahlmann, Norbert Weiss
Patients with aortic diseases have a high rate of cardiac, cerebrovascular, or pulmonary comorbidities. Open surgery or endovascular interventions of the aorta are associated with high perioperative cardiac risk. Simple scoring systems for preoperative risk stratification can be used to identify high-risk patients. In these patients, further diagnostic and therapeutic interventions are required to reduce perioperative morbidity and mortality. In contrast, low-risk patients can be identified, who may proceed to intervention without additional cardiopulmonary diagnostic testing...
September 2016: Best Practice & Research. Clinical Anaesthesiology
https://www.readbyqxmd.com/read/27643056/os-25-04-the-changes-of-arterial-stiffness-monitored-with-cardio-ankle-vascular-index-cavi-during-raised-intracranial-pressure-in-the-rabbit
#4
Chikao Miyazaki, Mao Takahashi, Kazuhiro Shimizu, Tatsuo Chiba, Takenori Morisita, Tomoyuki Yamamoto, Nobuo Sugo, Akira Takahara, Kohji Shirai
OBJECTIVE: Cardio ankle vascular index (CAVI) is reflecting stiffness of the arterial tree from the origin of aorta to the ankles. We observed elevated CAVI in patients who suffered from apoplexy attack. To clarify the role and the mechanism by which arterial stiffness elevated just after apoplexy attack, the effect of enhanced intracranial pressure (ICP) by injecting saline into the cisterna magna of the rabbit on blood pressure, CAVI and cervical blood flow, were studied. Furthermore the role of sympathetic nerve was studied...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27595907/anesthesia-for-traumatic-diaphragmatic-hernia-associated-with-corneal-laceration
#5
Reza Safaeian, Valiollah Hassani, Hamid Reza Faiz
BACKGROUND Diaphragmatic rupture can be seen in up to 5% of car accidents, and 80%-100% of diaphragmatic hernias are associated with other vital organ injuries. Brain, pelvis, long bones, liver, spleen, and aorta are some other organs that can be severely damaged and need different anesthetic managements. CASE REPORT A 37-year-old male victim of a head-on collision who was suffering diaphragmatic rupture and corneal laceration was prepared for an emergency operation 11 hours after the car accident. Gastric decompression, pre-oxygenation, rapid sequence induction with succinylcholine, immediate use of non-depolarizing muscle relaxant, and mechanical ventilation with low tidal volume after intubation were used in anesthetic management of the patient...
2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27592573/-safety-of-surgical-therapy-for-neonate-aortic-coarctation-combined-with-ventricular-septal-defect
#6
Peng Huang, Jinwen Luo, Jian Liu, Xiaohui Yang, Xiaoming Peng, Pingbo Liu
OBJECTIVE: To evaluate the safety of surgical repair for neonatal aortic coarctation combined with ventricular septal defect.
 METHODS: Twenty-three aortic coarctation neonates received surgical treatment and their clinical data between April, 2013 and May, 2015 were analyzed retrospectively. All patients underwent coarctation repair + ventricular septal defect repair and mild hyperthermia cardiopulmonary bypass under the condition of general anesthesia. All patients were subjected to delayed sternal closure...
July 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/27585814/mechanisms-underlying-the-antihypertensive-properties-of-urtica-dioica
#7
Rahila Qayyum, Hafiz Misbah-Ud-Din Qamar, Shamim Khan, Umme Salma, Taous Khan, Abdul Jabbar Shah
BACKGROUND: Urtica dioica has traditionally been used in the management of cardiovascular disorders especially hypertension. The aim of this study was to explore pharmacological base of its use in hypertension. METHODS: Crude methanolic extract of U. dioica (Ud.Cr) and its fractions (Ud.EtAc, Ud.nHex, Ud.Chl and Ud.Aq) were tested in vivo on normotensive and hypertensive rats under anesthesia for blood pressure lowering effect. In-vitro experiments on rat and rabbit aortae were employed to probe the vasorelaxation mechanism(s)...
2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27584550/rodent-working-heart-model-for-the-study-of-myocardial-performance-and-oxygen-consumption
#8
Elizabeth S DeWitt, Katherine J Black, John N Kheir
Isolated working heart models have been used to understand the effects of loading conditions, heart rate and medications on myocardial performance in ways that cannot be accomplished in vivo. For example, inotropic medications commonly also affect preload and afterload, precluding load-independent assessments of their myocardial effects in vivo. Additionally, this model allows for sampling of coronary sinus effluent without contamination from systemic venous return, permitting assessment of myocardial oxygen consumption...
August 16, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27581114/gluteal-compartment-syndrome-following-abdominal-aortic-aneurysm-treatment-case-report-and-review-of-the-literature
#9
Emanuela Viviani, Anna Maria Giribono, Donatella Narese, Doriana Ferrara, Giuseppe Servillo, Luca Del Guercio, Umberto Marcello Bracale
Compartment syndrome (CS) is a pathological increase of the interstitial pressure within the closed osseous fascial compartments. Trauma is the most common cause, followed by embolization, burns, and iatrogenic injuries; it usually involves the limbs. The major issue when dealing with CS is the possibility to do an early diagnosis in order to intervene precociously, through a fasciotomy, reducing the risk of tissue, vascular and nervous damage. Although it is an infrequent condition, it is potentially life threatening...
August 31, 2016: International Journal of Lower Extremity Wounds
https://www.readbyqxmd.com/read/27554701/endovascular-management-of-concomitant-thoracic-and-abdominal-aortic-ruptures-resulting-from-brucellosis-aortitis
#10
Samuel L Chen, Isabella J Kuo, Roy M Fujitani, Nii-Kabu Kabutey
INTRODUCTION: Acute aortic symptomatology is an unusual manifestation of Brucella melitensis infection. We present a rare case of acute multifocal thoracic and abdominal aortic ruptures arising from Brucellosis aortitis managed exclusively with endovascular surgery. METHODS: A 71 year-old Hispanic male with a history of atrial fibrillation and prior stroke on chronic anticoagulation, presented with shortness of breath and malaise. In addition, he had been treated approximately one year previously in Mexico for Brucella melitensis bacteremia after eating fresh unpasteurized cheese...
August 20, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27538164/-anesthesia-management-of-caesarean-section-for-pregnant-women-complicated-with-takayasu-s-arteritis
#11
J Sun, H Zeng, Y Q Wang, Y Y Zhao
Takayasu's arteritis is a rare, idiopathic, chronic inflammatory disease. Its course is unpredictable, but slow progression is usual, leading to stenosis, occlusion, or aneurismal degeneration of the aorta or its major branches. We present the anesthesia management of pregnancy in four women admitted to Peking University Third Hospital for caesarean section from year 2006 to 2015 complicated with Takayasu's arteritis and review this disease with special reference to natural history, diagnostic criteria, classification, prognostic factors, and anesthesia considerations...
February 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27375806/axillobifemoral-bypass-for-aortitis-syndrome-in-a-living-donor-liver-transplant-patient
#12
Naoto Fukunaga, Kenji Uryuhara, Tadaaki Koyama
A 64-year-old female patient with aortitis syndrome presented with progressive intermittent claudication for 6 months. Her medical history was notable for living-donor liver transplantation for primary biliary cirrhosis 4-years prior and chronic immunosuppressive therapy. Evaluation included normal laboratory examination, and contrast-enhanced computed tomography angiography which demonstrated severely calcified descending aorta with high-grade stenosis below the diaphragm. The patient was treated by axillobifemoral bypass using an 8-mm ringed expanded polytetrafluoroethylene graft under general anesthesia...
2016: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/27319100/-general-anesthesia-using-remifentanil-for-cesarean-section-in-a-parturient-with-marfan-syndrome-associated-with-heart-failure-due-to-severe-mitral-regurgitation
#13
Masahide Fujita, Tsuyoshi Satsumae, Makoto Tanaka
A 24-year-old woman with Marfan syndrome was scheduled for cesarean section in order to avoid progression of heart failure due to severe mitral regurgitation and aortic dissection during labor. Cesarean section was performed under general anesthesia using remifentanil. Anesthesia was induced and maintained with remifentanil (0.1-0.3 μg x kg(-1) x min(-1)) and continuous administration of propofol (target-controlled infusion, 2-3 ng x ml(-1)). The trachea was intubated without a significant hemodynamic change...
May 2016: Masui. the Japanese Journal of Anesthesiology
https://www.readbyqxmd.com/read/27227938/death-due-to-intra-aortic-migration-of-kirschner-wire-from-the-clavicle-a-case-report-and-review-of-the-literature
#14
Lei Tan, Da-Hui Sun, Tiecheng Yu, Linxiang Wang, Dong Zhu, Yan-Hui Li
Migration of orthopedic fixation wires into the ascending aorta though a rare occurrence can have devastating consequences. Therefore, prompt recognition, with immediate and cautious retrieval of the implant is paramount in averting these complications.We present a case of a 5-year-old boy with the intra-aortic migration of a K-wire used for the treatment of a right clavicle fracture. He was transferred to us with a history of syncope, chest pain, and shortness of breath 7 days after K-wire placement, which was performed at another hospital...
May 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27192856/-anesthesia-during-the-separation-of-the-fetus-in-fetu-in-a-2-days-life-child-with-accompanying-non-corrected-critical-congenital-heart-disease-chd
#15
E G Agavelyan, E M Svarinskaya, S V Ovchinnikov
The article describes a clinical case of treating a few- hours-life child with birth body weight--2900 g, length--50 cm, who had been extremely rare complex congenital malformations: fetus in fetu in the epigastrium with satisfactorily formed the lower half of the body of the failed twin, omphalocele and severe CHD. The surgical treatment was in terms of multicomponent endotracheal anesthesia. At the end of surgery puncture and catheterization of the epidural space at the level of L1/L2 holding the catheter up to Th9/Th10 for postoperative analgesia was made...
January 2016: Anesteziologiia i Reanimatologiia
https://www.readbyqxmd.com/read/27159914/detection-and-quantification-of-left-to-right-shunting-using-transpulmonary-ultrasound-dilution-tpud-a-validation-study-in-neonatal-lambs
#16
Sabine L Vrancken, Arno F van Heijst, Jeroen C Hopman, Kian D Liem, Johannes G van der Hoeven, Willem P de Boode
OBJECTIVES: We investigated the accuracy of left-to-right shunt detection using transpulmonary ultrasound dilution (TPUD) and compared the agreement between pulmonary over systemic blood flow (Qp/Qs) ratio measured by TPUD [Qp/Qs(tpud)] and ultrasonic flow probes [Qp/Qs(ufp)]. METHODS: Seven newborn lambs under general anesthesia were connected to the TPUD monitor (COstatus™) after insertion of arterial and central venous catheters. A Gore-Tex® shunt, inserted between the descending aorta and left pulmonary artery, was intermittently opened and closed while cardiac output was varied by blood withdrawals...
May 9, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27110550/cisplatin-induced-nephrotoxicity-alters-blood-pressure-response-to-angiotensin-ii-administration-in-rats
#17
Aghdas Dehghani, Shadan Saberi, Mehdi Nematbakhsh
BACKGROUND: Cisplatin (CP) is an effective chemotherapeutic drug used in the clinic, which is accompanied with nephrotoxicity. CP may also disturb hemodynamics of the circulation system. We have tested the role of CP in mean arterial pressure (MAP) response to graded angiotensin (Ang) II infusion in rats. MATERIALS AND METHODS: Male and female rats were treated with CP (2.5 mg/kg/day) for a period of 1-week and compared with the vehicle-treated animals. The blood pressure response to Ang II (100-1000 ng/kg/min) was determined under the anesthesia condition...
2016: Advanced Biomedical Research
https://www.readbyqxmd.com/read/27069835/anesthetic-management-for-cesarean-section-in-a-patient-with-uncorrected-double-outlet-right-ventricle
#18
Juan Gu, Yunxia Cai, Bin Liu, Sheng Lv
BACKGROUND: We describe the anesthetic management for cesarean section in a pregnant woman with uncorrected double-outlet right ventricle. The anesthetic method, treatment of complications and lessons are discussed. CASE PRESENTATION: A 28-year-old woman visited our emergency room for progressive dyspnea and recurrent hemoptysis at 30 weeks' gestation. Her New York Heart Association functional class was III-IV. Echocardiography indicated that she had congenital heart disease of double-outlet right ventricle...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27027706/correlation-of-the-ratio-of-caudal-vena-cava-diameter-and-aorta-diameter-with-systolic-pressure-variation-in-anesthetized-dogs
#19
Caterina Meneghini, Roberto Rabozzi, Paolo Franci
OBJECTIVE: To evaluate the correlation coefficient of the ratio between diameter of the caudal vena cava (CVC) and diameter of the aorta (Ao) in dogs as determined ultrasonographically with systolic pressure variation (SPV). ANIMALS: 14 client-owned dogs (9 females and 5 males; mean ± SD age, 73 ± 40 months; mean body weight, 22 ± 7 kg) that underwent anesthesia for repair of skin wounds. PROCEDURES: Anesthesia was induced. Controlled mechanical ventilation with a peak inspiratory pressure of 8 cm H2O was immediately started, and SPV was measured...
February 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/26967580/intraluminal-drug-delivery-to-the-mouse-arteriovenous-fistula-endothelium
#20
Takuya Hashimoto, Kota Yamamoto, Trenton Foster, Hualong Bai, Kunihiro Shigematsu, Alan Dardik
Delivery of therapeutic agents to enhance arteriovenous fistula (AVF) maturation can be administered either via intraluminal or external routes. The simple murine AVF model was combined with intraluminal administration of drug solution to the venous endothelium at the same time as fistula creation. Technical aspects of this model are discussed. Under general anesthesia, an abdominal incision is made and the aorta and inferior vena cava (IVC) are exposed. The infra-renal aorta and IVC are dissected for clamping...
2016: Journal of Visualized Experiments: JoVE
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