Airway management during induction of anaesthesia, spontaneous ventilation (SV) and controlled mechanical ventilation (CMV), using an endotracheal tube (ETT), laryngeal mask (LM), rabbit-specific supraglottic airway device (v-gel) or facemask (FM).

Experimental evaluation of four airway devices in anaesthetized New Zealand White rabbits.

Vet Anaesth Analg. 2017 ;

Authors: Wenger S, Müllhaupt D, Ohlerth S, Prasse S, Klein K, da Silva Valente B, Mosing M

Abstract

OBJECTIVE: To compare airway management during induction of anaesthesia, spontaneous ventilation (SV) and controlled mechanical ventilation (CMV), using an endotracheal tube (ETT), laryngeal mask (LM), rabbit-specific supraglottic airway device (v-gel) or facemask (FM).

STUDY DESIGN: Prospective randomized crossover experiment.

ANIMALS: Ten New Zealand White rabbits.

METHODS: After premedication, rabbits were randomly allocated to four groups: 1) ETT; 2) LM; 3) v-gel or 4) FM. The required dose of propofol, duration and number of attempts to place an airway device and leakage during SV and CMV at different peak inspiratory pressures (6, 10, 12, 14 and 16 cmH2O) were recorded. Computed tomography (CT) of the head, neck and abdomen were performed before and after CMV.

RESULTS: Significantly less propofol and time [2.0±0.5 mg kg(-1), 82±34 seconds, p<0.001] were needed to place the FM compared to the three other groups [v-gel 5.1±2.1 mg kg(-1), 302±124 seconds; LM 4.8±1.2 mg kg(-1), 275±89 seconds; ETT 5.5±1.4 mg kg(-1), 315±147 seconds]. A leak > 25% of the tidal volume occurred at the lowest pressure in FM [median (range), 6 (6-8) cmH2O], which was significantly lower than with v-gel [16 (6-no leak at 16) cmH2O], LM [>16 (6-no leak at 16)] or ETT [>16 (no leak at 16) cmH2O] (p<0.001). On CT images, the height and width of the larynx were significantly smaller with v-gel in comparison to FM and LM (p=0.004). A significant increase in the amount of gas in the stomach (p=0.007), but not gastric volume, was detected in FM and LM.

CONCLUSIONS AND CLINICAL RELEVANCE: The v-gel is a practical alternative to LM and ETT for airway management and CMV, but can compress the larynx. The FM is easily placed, but significant leakage occurs during CMV.

PMID: 28528760 [PubMed - as supplied by publisher]

Alexandros Sfakianakis
Anapafseos 5 . Agios Nikolaos
Crete.Greece.72100
2841026182

6948891480

alsfakia@gmail.com

Curcumin attenuates lipopolysaccharide/d-galactosamine-induced acute liver injury

Curcumin attenuates lipopolysaccharide/d-galactosamine-induced acute liver injury by activating Nrf2 nuclear translocation and inhibiting NF-kB activation

στο Biomedicine & Pharmacotherapy

Μετάφραση άρθρου

Publication date: July 2017

Source:Biomedicine & Pharmacotherapy, Volume 91

Author(s): Yi-Lian Xie, Jin-Guo Chu, Xiao-Min Jian, Jin-Zhong Dong, Li-Ping Wang, Guo-Xiang Li, Nai-Bin Yang

Curcumin, a polyphenol in curry spice isolated from the rhizome of turmeric, has been reported to possess versatile biological properties including anti-inflammatory, anti-oxidant, antifibrotic, and anticancer activities. In this study, the hepatoprotective effect of curcumin was investigated in lipopolysaccharide (LPS)/d-galactosamine (d-GalN)-induced acute liver injury (ALI) in rats. Experimental ALI was induced with an intraperitoneal (ip) injection of sterile 0.9% sodium chloride (NaCl) solution containing 8μg LPS and 800mg/kg d-GalN. Curcumin was administered once daily starting three days prior to LPS/d-GalN treatment. Results indicated that curcumin could attenuate hepatic pathological damage, decrease serum ALT and AST levels, and reduce malondialdehyde (MDA) content in experimental ALI rats. Moreover, higher dosages of curcumin pretreatment inhibited NF-κB activation and reduced serum TNF-α and liver TNF-α levels induced by LPS/d-GalN ip injection. Furthermore, we found that curcumin up-regulated the expression of nuclear Nrf2 and Nrf2-dependent antioxidant defense genes including heme oxygenase-1 (HO-1), glutamate-cysteine ligase (GCLC), NAD(P)H dehydrogenase, and quinone (NQO-1) in a dose-dependent manner. Our results showed that curcumin protected experimental animals against LPS/d-GalN-induced ALI through activation of Nrf2 nuclear translocation and inhibition of NF-κB activation.

Alexandros Sfakianakis
Anapafseos 5 . Agios Nikolaos
Crete.Greece.72100
2841026182

6948891480

alsfakia@gmail.com

Bottom of an iceberg: undiagnosed aortic aneurysm masquerading as vocal cord palsy

http://otorhinolaryngology-crete.blogspot.com/2017/05/undiagnosed-aortic-aneurysm.html

 από Rao, V. U. S., Chatterjee, S., Swamy, S. S. στο BMJ Case Reports Last 6 Issues Μετάφραση άρθρου Description A previously healthy woman aged 60 years was referred to a tertiary referral cancer centre with change of voice for 1 week suspecting neoplastic aetiology on account of her tobacco chewing habit of more than 20 years. No history of voice abuse, fever or cough was there preceding the onset of the change of voice. She did not have any previous history of hospitalisation or diagnosed comorbidities. On clinical examination, her pulse rate was 82 bpm; blood pressure was 130/90 mm Hg and respiratory rate was 12/min.  Video laryngoscopy examination revealed left vocal cord palsy with no obvious lesion. A whole-body F18 FDG PET–CT scan revealed the presence of 6.6x4.8x6.7 cm lobulated sacullar aneurysm arising from the aortic arch between the origins of the left common carotid and subclavian arteries (figures 1 and 2). The likely mycotic aneurysm caused significant surrounding metabolically active inflammatory changes (figure 3).

Alexandros Sfakianakis
Anapafseos 5 . Agios Nikolaos
Crete.Greece.72100
2841026182

6948891480

alsfakia@gmail.com