Non-invasive measurement of digital plethysmographic variability index to predict fluid responsiveness in mechanically ventilated children: A systematic review and meta-analysis of diagnostic test accuracy studies.

Background: To date, the use of the plethysmographic variability index (PVI) has not been recommended to guide fluid management in the paediatric surgical population. This systematic review and meta-analysis aimed to summarise available evidence about the diagnostic accuracy of digital PVI to predict fluid responsiveness in mechanically ventilated children.

Methods: We searched the Pubmed, Embase and Web of Science databases, from inception to January 2022, to identify all relevant studies that investigated the ability of the PVI recorded at the finger to predict fluid responsiveness in mechanically ventilated children.

Permanent hemidiaphragmatic paresis after interscalene brachial plexus block: a case report.

Interscalene brachial plexus block has been widely used in shoulder surgery. We report one case of long-term phrenic palsy following ultrasound-guided interscalene brachial plexus block and we will discuss the possible etiology and mechanism of this disability. For painful shoulder surgery, ultrasound-guided interscalene brachial plexus block remains topical.

[Comparison of two doses of intra-articular tranexamic acid on postoperative bleeding in total knee arthroplasty: a randomized clinical trial].

Introduction: Tranexamic Acid (TXA), an antifibrinolytic that inhibits the fibrinolytic activity of plasmin is used to decrease perioperative blood loss and transfusion requirements in orthopedic surgery. The aim of our study was to compare postoperative bleeding in two intra-articular doses (1 g and 2 g) of tranexamic acid in adult patients undergoing unilateral total knee replacement.

Method: We conducted a single-operator, randomized, and controlled, double-blind study in two groups.

Spinal subarachnoid haematoma after spinal anaesthesia: case report.

Subarachnoid haematoma after spinal anaesthesia is known to be very rare. In the majority of these cases, spinal anaesthesia was difficult to perform and/or unsuccessful; other risk factors included antiplatelet or anticoagulation therapy, and direct spinal cord trauma. We report a case of subarachnoid haematoma after spinal anaesthesia in a young patient without risk factors.

[Spinal subarachnoid haematoma after spinal anaesthesia: case report].

Subarachnoid haematoma after spinal anaesthesia is known to be very rare. In the majority of these cases, spinal anaesthesia was difficult to perform and/or unsuccessful; other risk factors included antiplatelet or anticoagulation therapy, and direct spinal cord trauma. We report a case of subarachnoid haematoma after spinal anaesthesia in a young patient without risk factors.

Respiratory variation in aortic blood flow peak velocity to predict fluid responsiveness in mechanically ventilated children: a systematic review and meta-analysis.

Background: Dynamic indices of preload have been shown to better predict fluid responsiveness than static variables in mechanically ventilated adults. In children, dynamic predictors of fluid responsiveness have not yet been extensively studied.

Aim: To evaluate the diagnostic accuracy of respiratory variation in aortic blood flow peak velocity (ΔVPeak) for the prediction of fluid responsiveness in mechanically ventilated children.

The analysis for the causes of surgical cancellations in a Brazilian university hospital.

Background: The aim of our study is to quantify the occurrence of suspension of scheduled surgeries in a Brazilian university hospital, trying to identify the causes of suspension of these operations and meet the medical specialties that most contributed to the cancellation.

Methods: This study takes the form of an exploratory, descriptive, and quantitative enquiry carried out by analyzing the database from 2008 to 2011 of the operating theater.

Results: Of the 29,518 scheduled surgeries, 16.

Opioid consumption after levobupivacaine scalp nerve block for craniosynostosis surgery.

Background And Objectives: Craniosynostosis surgery is considered a very painful procedure due to extended scalp and periosteal detachment, and is associated with prolonged postoperative consumption of opioids and their side effects. In this observational descriptive case series study, we investigated perioperative opioid consumption in children undergoing craniosynostosis repair under general anesthesia when scalp nerve block with levobupivacaine was involved.

Methods: After standard anesthesia induction, scalp nerve block with levobupivacaine 2 mg/kg plus epinephrine 1:800,000 was performed.

Anesthesia for awake craniotomy: case report.

Background And Objectives: Some intracranial procedures are achievable with patients awake, however, there are challenges ranging from patient compliance to homeostasis. The aim of this study is to present a case of intracranial surgery for removal of a tumor in the left parietal lobe with the patient awake during the procedure.

Case Report: After patient selection and psychological preparation, the proposed excision of the left parietal lobe lesion in the waking state was clarified and accepted.

Application of cardiac autonomous indices in the study of neurogenic erectile dysfunction.

A research area of increasing interest consists of studying the benefits of using spectral analysis to screen neurogenic erectile dysfunctions. Our hypothesis is that spectral analysis consists of a non-invasive and simple procedure to investigate such patients. Subjects were allocated into two groups: control, no erectile dysfunction (n = 17), and patients with erectile dysfunction (n = 15).

Empirical mode decomposition to assess cardiovascular autonomic control in rats.

Heart beat rate and blood pressure, together with baroreflex sensitivity, have become important tools in assessing cardiac autonomic system control and in studying sympathovagal balance. These analyses are usually performed thanks to spectral indices computed from standard spectral analysis techniques. However, standard spectral analysis and its corresponding rigid band-pass filter formulation suffer from two major drawbacks.

Cough-induced intercostal lung herniation requiring surgery: Report of a case.

Lung herniation is a rare event defined by protrusion of the lung through an abnormal weakness in the thoracic wall. We report a case of spontaneous intercostal pulmonary herniation, which occurred as a result of vigorous coughing. We repaired the herniation by approximating the ribs with heavy stitches.

Instant centre frequency at anaesthetic induction--a new way to analyse sympathovagal balance.

The instant centre frequency (ICF) of RR interval has been proposed as a global index to analyse the sympathovagal interaction in the heart. The aim of this study was to assess the ICF during anaesthesia to test if it can reliably capture the neural control of the cardiovascular system. Twenty-four ASA II or III patients scheduled for cardiac surgery were included in the study.

Orthostatic tolerance and spontaneous baroreflex sensitivity in men versus women after 7 days of head-down bed rest.

Many factors are involved in the development of orthostatic intolerance after real or simulated weightlessness. The aim of our study was to compare the effects of 7-day head-down bed rest (HDBR) in eight women and eight men on the spontaneous baroreflex sensitivity (standard spectral method and new time-frequency algorithm) during lower body negative pressure (LBNP) tests. Results obtained before HDBR have shown in women, compared to men, higher heart rate, lower blood pressure, higher parasympathetic modulation at rest and greater decrease in baroreflex sensitivity with greater increase in sympathetic activity during LBNP.