Oral-Mucosal PCO during hemorrhagic shock closely Monitors its time Course, Severity, and reversal outperforming blood lactate measurement.

Introduction: Given the redistribution of blood flow away from non-immediately vital territories during hemorrhagic shock, we investigate whether monitoring the oral mucosal PCO (PCO) as a surrogate of splanchnic circulation, could closely recognize the onset, assess severity, and identify reversal of hemorrhagic shock.

Material And Methods: The study was performed on six male pigs (38.4 ± 1.

The Effectiveness of Face Masks in Preventing COVID-19 Transmission: A Systematic Review.

Introduction: Since the beginning of the COVID-19 pandemic, face masks have been among the cornerstones of COVID-19 prevention. Therefore, evaluating their preventive effects against COVID-19 is crucial. This review aimed to systematically search for the systematic review articles that explored the role of various types of face masks in preventing COVID-19.

Effects of Smoking on COVID-19 Management and Mortality: An Umbrella Review.

Introduction: Smoking status appears to lead to a poor prognosis in COVID-19 patients. However, findings from the studies conducted on this topic have not been consistent, and further exploration is required.

Methods: The objective of this umbrella review was to examine the effects of smoking on COVID-19 management and mortality.

SARS-CoV-2 Infection and Severity in Patients with Hematologic Malignancies: A Systematic Review.

Introduction: Earlier reports described the possibility of higher SARS-CoV-2 infection and severity in patients with hematological malignancies. Given the importance and incidence of these malignancies, we aimed to systematically review SARS-CoV-2 infection and severity in patients with hematologic cancers.

Methods: We retrieved the relevant records by searching the keywords in online databases of PubMed, Web of Science, Cochrane, and Scopus on December 31st, 2021.

Gut microbiota and COVID-19: A systematic review.

Background And Aims: Alteration in humans' gut microbiota was reported in patients infected with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). The gut and upper respiratory tract (URT) microbiota harbor a dynamic and complex population of microorganisms and have strong interaction with host immune system homeostasis. However, our knowledge about microbiota and its association with SARS-CoV-2 is still limited.

Complications of COVID-19 Vaccines during Pregnancy; a Systematic Review.

Introduction: Rare serious complications have been documented after COVID-19 vaccination as clinical research proceeded and new target populations, such as children and ‎pregnant women, were included. In this study, we attempted to review the literature relevant to ‎pregnancy complications and maternal outcomes of COVID-19 immunization in pregnant women. ‎.

COVID-19 Vaccines' Protection Over Time and the Need for Booster Doses; a Systematic Review.

Introduction: Controversies existed regarding the duration of COVID-19 vaccines' protection and whether receiving the usual vaccine doses would be sufficient for long-term immunity. Therefore, we aimed to systematically review the studies regarding the COVID-19 vaccines' protection three months after getting fully vaccinated and assess the need for vaccine booster doses.

Methods: The relevant literature was searched using a combination of keywords on the online databases of PubMed, Scopus, Web of Science, and Cochrane on September 17th, 2021.

The clinical outcomes of COVID-19 in HIV-positive patients: A systematic review of current evidence.

Introduction: Patients with chronic underlying diseases are more susceptible to coronavirus disease 2019 (COVID-19) complications. Recent studies showed people living with HIV (PLWH) are not at greater risk than the general population. Few studies have reviewed the impacts of COVID-19 on PLWH.

Influence of body mass indexes on response to treatment in acute asthma.

Increases in body mass index (BMI) are reported to influence asthma response to treatment. The aim of this study was to investigate the relationship between BMI and response to treatment in a group of patients that were referred for asthma control. Effectiveness measurements in this analysis included percentage of changes in forced volume in 1 second (FEV1), forced volume capacity (FVC), FEV1/FVC, and forced expiratory flow between 25% and 75% of FVC (FEF25-75%).

Spontaneous esophageal perforation presenting as a right-sided pleural effusion: a case report.

Spontaneous esophageal perforation or Boerhaave's syndrome is an uncommon condition that may occur following forceful vomiting and lead to mediastinitis. It is associated with high mortality and morbidity in absence of therapy. We present a case of spontaneous esophageal perforation in a 63 year-old man who developed a right-sided effusion, an unusual presentation.

Correlation of end-tidal carbon dioxide with arterial carbon dioxide in mechanically ventilated patients.

Background: Patients undergone mechanical ventilation need rapid and reliable evaluation of their respiratory status. Monitoring of End-tidal carbon dioxide (ETCO2) as a surrogate, noninvasive measurement of arterial carbon dioxide (PaCO2) is one of the methods used for this purpose in intubated patients.

Objectives: The aim of the present trial was to study the relationship between end-tidal CO2 tensions with PaCO2 measurements in mechanically ventilated patients.

Correlation of arterial blood gas measurements with venous blood gas values in mechanically ventilated patients.

Background: Arterial blood gas (ABG) analysis is useful in evaluation of the clinical condition of critically ill patients; however, arterial puncture or insertion of an arterial catheter may cause many complications. The aim of this study was to determine whether venous blood gas (VBG) values can be used as an alternative to arterial blood gas measurements in patients under mechanical ventilation.

Materials And Methods: This study was carried out on patients admitted to the Intensive Care Unit of Kashan Beheshti Hospital.

Effect of age on response to treatment in adult patients with severe persistent asthma.

Background: Due to current controversies regarding the effect of age on response to treatment in asthmatic patient, the present study was performed on patients referred with acute asthma attack for further evaluation of this matter.

Materials And Methods: In this study 138 patients with severe persistent asthma were enrolled and divided into two categories of young (age ≤35 yrs; 82 cases, mean age = 25.2±7.

Evaluation of high-sensitivity C-reactive protein in acute asthma.

Background: High sensitivity C-reactive protein (hs-CRP) is an inflammatory marker known to be related to inflammation, infection, and cardiovascular diseases. The aim of this study was to evaluate hs-CRP level in serum of asthmatics and its relationship with pulmonary function tests, serum IgE levels, and peripheral blood white blood cell (WBC) counts.

Materials And Methods: The under study subjects were 108 patients with acute asthma and 93 healthy volunteers.