Objective To investigate the clinical feasibility of the injection test for balloon placement during oesophageal pressure measurement in patients without spontaneous breathing. Methods The injection test was performed in 12 mechanically ventilated patients under deep sedation and paralysis. During withdrawal of the balloon from the stomach and air injection into the gastric lumen of the catheter, the presence of the injection test wave in the balloon pressure tracing indicated that the whole balloon was positioned above the lower oesophageal sphincter (LES). The positive pressure occlusion test was performed at different balloon positions. Results In each patient, the injection test wave appeared at a distinct balloon depth, with a mean ± standard deviation of 41.9 ± 3.3 cm and range from 37 cm to 47 cm. The optimal ratio of changes in the balloon and airway pressure (0.8-1.2) during the positive pressure occlusion test was obtained when the balloon was located 5 cm and 10 cm above the LES in nine (75%) and three (25%) patients, respectively. Conclusions The injection test is feasible for identification of the whole balloon position above the LES during passive ventilation. The middle third of the oesophagus might be the optimal balloon position.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5536601 | PMC |
| http://dx.doi.org/10.1177/0300060516679776 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Penetrable AAV2 Capsid Variant for Efficient Intravitreal Gene Delivery to the Retina.
Invest Ophthalmol Vis Sci
January 2025
Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Purpose: This study aimed to identify a novel recombinant adeno-associated virus (rAAV) capsid variant that can widely transfect the deep retina through intravitreal injection and to assess their effectiveness and safety in gene delivery.
Methods: By adopting the sequences of various cell-penetrating peptides and inserting them into the capsid modification region of AAV2, we generated several novel variants. The green fluorescent protein (GFP)-carrying variants were screened following intravitreal injection.
Patient acceptability of intra-amniotic digoxin versus intracardiac lidocaine for inducing foetal demise prior to second trimester medical abortion: a prospective cohort.
Eur J Contracept Reprod Health Care
January 2025
DuPont Clinic, Washington, District of Columbia, USA.
Objective: To compare patient acceptability of inducing foetal demise procedures between intracardiac lidocaine and intra-amniotic digoxin administration prior to second trimester medical abortion.
Methods: We enrolled a prospective cohort of women who received either intra-cardiac lidocaine or intra-amniotic digoxin during second trimester medical abortion at later gestation (20-28 weeks) at our centre between April 2023 and March 2024. Data were collected prospectively using a structured questionnaire.
Biodegradable PHBVHHx-PEG/Collagen Hydrogel Scaffolds for Cartilage Repair.
Tissue Eng Part A
January 2025
Department of Orthopedic Surgery and Orthopedic Research Institute, Sports Medicine Center, West China Hospital, Sichuan University, Chengdu, China.
Recently, there has been increased attention on the treatment of cartilage repair. Overall, we constructed PHBVHHx-COL, a composite hydrogel of PHBVHHx-co-PEG and collagen, and evaluated its cartilage repair efficacy through and studies using hydrogel loaded with peripheral blood-derived mesenchymal stem cells (PBMSCs). Rheological properties and compressive mechanical properties of the hydrogels were systematically evaluated.
View Article and Find Full Text PDFIs Platelet-rich Plasma Effective in Treating Achilles Tendinopathy? A Meta-analysis of Randomized Clinical Trials.
Clin Orthop Relat Res
December 2024
Federal University of Bahia, Salvador, Brazil.
Background: Several meta-analyses have evaluated the use of platelet-rich plasma (PRP) in the treatment of Achilles tendinopathy. Although they generally did not find PRP to be effective, an updated meta-analysis containing all the available, high-quality randomized trial evidence that addresses the methodological shortcomings identified in earlier meta-analyses needs to be performed.
Question/purposes: This systematic review and meta-analysis aimed to evaluate the efficacy of PRP in improving (1) pain and function as assessed using the Victorian Institute of Sports Assessment-Achilles (VISA-A) score 3 months, 6 months, and 1 year after treatment and (2) VAS pain scores 3 months after treatment in patients with chronic Achilles tendinopathy.
Comparative study of labour analgesia onset with injection of loading dose through epidural needle versus catheter: A prospective, double-blinded, randomised clinical trial.
Eur J Anaesthesiol
February 2025
From the Department of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China (XC, YT, QY, LS, HL, LW, CJ, XC).
Background: Rapid onset of epidural analgesia is an important concern for the parturient. Commonly, the local anaesthetic mixture is administered through the epidural catheter. Drugs administered through the epidural needle might decrease the onset time and enhance the spread of medication within the epidural space.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!