OBJECTIVE To evaluate the heart rate (HR) and oxygen saturation (SpO2) at 15-second intervals within 60 seconds after incremental increases of fractional inspired oxygen (FiO2) during resuscitation of infants younger than 29 weeks requiring two different forms of ventilatory support. STUDY DESIGN Retrospective observational study. METHODS Forty-three infants were stabilized, 14 by continuou...

INTRODUCTION Chronic arterial insufficiency (CAI) of lower extremities is important socio-economical and healthcare problem, due to its high incidence of morbidity, disability and mortality. OBJECTIVE The aim of our work was to determine the diagnostic importance of pulse oximetry in the early detection of stage of lower extremities CAI based on peripheral arterial oxygen saturation of haemog...

BACKGROUND Individuals residing at higher altitude may have oxygen saturation of hemoglobin different to those living at lower altitude. OBJECTIVES To find out the baseline value of SpO2 in healthy Nepali children (2-14 years) living permanently at high altitude using pulse oximeter and also to study the relation of SpO2 with age, sex and ethnicity. METHODS A descriptive observational study...

OBJECTIVE To determine if oxygen saturation measurement with pulse oximetry (SpO2) in combination with cardiotocograghy (CTG), improves the assessment of the intrapartum fetal condition. STUDY DESIGN Four expert obstetricians individually evaluated 119 cases that were monitored during labor: during the first session the CTG data were available, and in the second session CTG and SpO2 data were...

یکی از جذاب ترین روش های ماشینکاری مدرن، تخلیه الکتریکی است که در اواخر دهه 1960 معرفی شد. با سیم کاربردهای مختلفی دارد، جمله دقت بالا تمام مواد رسانا مانند فلزات، آلیاژهای فلزی، گرافیت و سرامیک همچنین صنایع هوافضا، خودروسازی سایر صنایع. به منظور افزایش سرعت کاهش زبری سطح عرض شکاف، پارامترهای برش بهینه نقش مهمی انتخاب خروجی دارند. این مطالعه، ورودی (دبی، مدت پالس، فرکانس سیم، کشش جریان دی الکتر...

Background Pulse-oximetry (Spo2) widely uses as a help tools for therapeutic interventions in the pediatric intensive care units (PICU). The aim of this study was to evaluate the validity of Spo2 in measuring of oxygenation index (OI) in children. Materials and Methods In a descriptive analytical study, 100 patients who were admitted to PICU Tabriz Children's Hospital were studied. Oxygenation ...

تأخیرهای طولانی در تکمیل واحدهای مسکونی، ناشی از عدم‌­تأمین منابع مالی کافی و به‌موقع یکی مشکلات سازندگان فرآیند تولید مسکن است؛ بنابراین پژوهش حاضر با توجه به چالش‌­هایی که مانع پیش‌فروش مؤثر مسکونی برای تأمین هستند، بر آن است تا ارائه مدلی اساس رویکرد پویایی­ سیستم، سیاست­‌های پیش‌­فروش را راستای مکفی به‌موقع، کاهش تأخیر تکمیل، هزینه فرصت ازدست‌رفته حصول توازن بین سود سازنده خریدار تعیین کند....

PURPOSE To describe the SpO2 in wakefulness, sleep and during the apnea-hypopnea in adults living in Bogotá, located at 2640 m above sea level. METHODS Descriptive observational study in adults referred for polysomnogram (PSG). A normal Apnea hypopnea index (AHI) was defined as ≤5 and obstructive sleep apnea (OSA) was classified as mild (AHI 5-15), moderate (AHI 15-30), and severe (AHI >30). ...

Background. Given the influence of systemic blood pressure on pulpal blood flow, anxiolytics prescribed may alter the pulpal blood flow along with the local anesthetic solution containing a vasoconstrictor. This study evaluated the impact of preoperative anxiolytics and vasoconstrictors in local anesthetic agents on pulpal oxygen saturation. Methods. Thirty anxious young healthy individuals wit...

BACKGROUND As obesity increases, the frequency of obstructive sleep apnea and obesity hypoventilation syndrome increases also. However, obesity hypoventilation syndrome frequency is not known, as capnography and arterial blood gas analysis are not routinely performed in sleep laboratories. AIMS To investigate the frequency and predictors of obesity hypoventilation syndrome in obese subjects. ...