It is unclear whether intraoperative arterial hypotension is associated with postoperative delirium. We hypothesized that intraoperative hypotension within a range frequently observed in clinical ...practice is associated with increased odds of delirium after surgery.
Adult noncardiac surgical patients undergoing general anesthesia at 2 academic medical centers between 2005 and 2017 were included in this retrospective cohort study. The primary exposure was intraoperative hypotension, defined as the cumulative duration of an intraoperative mean arterial pressure (MAP) <55 mm Hg, categorized into and short (<15 minutes; median interquartile range {IQR}, 2 1-4 minutes) and prolonged (≥15 minutes; median IQR, 21 17-31 minutes) durations of intraoperative hypotension. The primary outcome was a new diagnosis of delirium within 30 days after surgery. In secondary analyses, we assessed the association between a MAP decrease of >30% from baseline and postoperative delirium. Multivariable logistic regression adjusted for patient- and procedure-related factors, including demographics, comorbidities, and markers of procedural severity, was used.
Among 316,717 included surgical patients, 2183 (0.7%) were diagnosed with delirium within 30 days after surgery; 41.7% and 2.6% of patients had a MAP <55 mm Hg for a short and a prolonged duration, respectively. A MAP <55 mm Hg was associated with postoperative delirium compared to no hypotension (short duration of MAP <55 mm Hg: adjusted odds ratio ORadj, 1.22; 95% confidence interval CI, 1.11-1.33; P < .001 and prolonged duration of MAP <55 mm Hg: ORadj, 1.57; 95% CI, 1.27-1.94; P < .001). Compared to a short duration of a MAP <55 mm Hg, a prolonged duration of a MAP <55 mm Hg was associated with greater odds of postoperative delirium (ORadj, 1.29; 95% CI, 1.05-1.58; P = .016). The association between intraoperative hypotension and postoperative delirium was duration-dependent (ORadj for every 10 cumulative minutes of MAP <55 mm Hg: 1.06; 95% CI, 1.02-1.09; P =.001) and magnified in patients who underwent surgeries of longer duration (P for interaction = .046; MAP <55 mm Hg versus no MAP <55 mm Hg in patients undergoing surgery of >3 hours: ORadj, 1.40; 95% CI, 1.23-1.61; P < .001). A MAP decrease of >30% from baseline was not associated with postoperative delirium compared to no hypotension, also when additionally adjusted for the cumulative duration of a MAP <55 mm Hg (short duration of MAP decrease >30%: ORadj, 1.13; 95% CI, 0.91-1.40; P = .262 and prolonged duration of MAP decrease >30%: ORadj, 1.19; 95% CI, 0.95-1.49; P = .141).
In patients undergoing noncardiac surgery, a MAP <55 mm Hg was associated with a duration-dependent increase in odds of postoperative delirium. This association was magnified in patients who underwent surgery of long duration.
High numbers of violence incidents against physicians are reported annually in both developing and developed countries. In Jordan, studies conducted on healthcare workers involved small number of ...physicians and showed higher percentages of violence exposure when compared to other investigations from the Middle East. This is a large study aiming to comprehensively analyze the phenomenon in the physicians' community to optimize future strategies countering it.
The study has a cross sectional, questionnaire-based design. It targeted 969 doctors from different types of healthcare Jordanian institutions in Amman, between May to July, 2019. The questionnaire was designed to evaluate properties of reported abuse cases in terms of abusers, timing, and type of abuse, in addition to the consequences of this abuse.
Prevalence of exposure to violence in the last year among doctors was 63.1% (611 doctors). 423 (67.2%) of male doctors had an experience of being abused during the last 12 months, compared to 188 (55.3%) of females (p< 0.001). Governmental centers showed the highest prevalence. Among 356 doctors working in governmental medical centers, 268 (75.3%) reported being abused (p< 0.001), and they were more abused verbally (63.5%) and physically (10.4%) compared to other medical sectors (p <0.001). The mean score of how worried doctors are regarding violence at their workplace from 1 to 5 was 3.1 ± 1.3, and only 129 (13.3%) believed that they are protected by law.
The study emphasized on the higher rate of violence against physicians in the governmental sector, in addition to the negative effect of abuse on their performance. Moreover, male physicians had higher incidence of workplace abuse. Therefore, strategies that ease and promote the real application of anti-violence policies should become our future target.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Background
Bariatric surgeries utilise Bougie device to guide stomach resection. The device implementation is associated with many underreported complications. This study aims to compare nebulised ...vs. intravenous preoperative dexamethasone in mitigating airway-related Bougie complications after sleeve gastrectomy.
Methodology
This is a prospective double-blinded interventional study conducted by a tertiary hospital. The study involved 105 patients allocated to 3 groups: Group (I) received 8 mg dexamethasone intravenously (IV) preoperatively, group (N) received 8 mg dexamethasone from a nebulizer mask preoperatively, and Group (S) received nebulised normal saline. Outcomes evaluated were postoperative sore throat, odynophagia, change of voice, and nausea and vomiting.
Results
Nebulized dexamethasone was found to be significantly superior to IV dexamethasone in terms of postoperative sore throat at zero-hour (
p
= 0.001) and 1-h intervals (
p
= 0.011). No significant difference was found at 6- and 24-h intervals. For odynophagia, post hoc analysis showed there was no significant difference between (I), (N), and (S) groups. Incidence of change of voice was significantly lower in (N) and (I) groups compared to (S) group, with p values of 0.0067 and 0.00014, respectively. The incidence of post-operative sore-throat (PONV) in (I) group was significantly lower than incidences in (S) group (
p
= 0.00002) and (N) group (
p
= 0.0004).
Conclusion
Preoperative nebulized and IV dexamethasone are effective strategies in mitigating complications related to mechanical effects of Bougie insertion. IV dexamethasone was as effective as nebulized dexamethasone in terms of late postoperative sore throat, and was superior in postoperative nausea and vomiting.
Graphical abstract
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Introduction
The usage of bougie devices in guiding the extent of sleeve gastrectomies has been associated with several laryngeal and pharyngeal complications. Despite these being distressing for ...patients, they draw little attention in current literature.
Objectives
To study the role of preoperative nebulized dexamethasone in relieving the symptoms related to bougie insertion during laparoscopic sleeve gastrectomy postoperatively.
Materials and Methods
A prospective interventional study that included 80 patients. The patients were assigned to two groups, 40 patients in each group: the dexamethasone group (D) which received nebulized dexamethasone 8 mg 1 h before surgery and the control group (S) which received saline nebulizer instead. Assessment of postoperative sore throat, nausea and vomiting, odynophagia, and change of voice was used as an outcome comparative tool.
Results
The patient’s age ranged from 17 to 61 years, and the mean age of patients was 34.51 (± 9.5) years. Patients were composed of 13 (16.3%) males and 67 (83.8%) females. The study found a significant preference of outcome values in the dexamethasone group. Sore throat mean and medians were less at all-time intervals: 0 h (
p
< 0.001), 1 h (
p
< 0.001), 6 h (
p
< 0.004), and 24 h (
p
< 0.001). Nineteen patients of the saline group suffered from a change of voice (
p
< 0.001), compared to only 4 patients in the dexamethasone group. On the contrary, no significant differences are noted in the incidences of PONV and odynophagia.
Conclusion
Preoperative nebulized dexamethasone was found to be an effective measure in reducing bougie insertion complications in laparoscopic sleeve gastrectomy.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Studies on potential treatments of Coronavirus Disease 2019 (COVID-19) are important to improve the global situation in the face of the pandemic. This review proposes lithium as a potential drug to ...treat COVID-19. Our hypothesis states that lithium can suppress NOD-like receptor family pyrin domain containing-3 (NLRP3) inflammasome activity, inhibit cell death, and exhibit immunomodulation via membrane depolarization. Our hypothesis was formulated after finding consistent correlations between these actions and membrane depolarization induced by lithium. Eventually, lithium could serve to mitigate the NLRP3-mediated cytokine storm, which is allegedly reported to be the inciting event of a series of retrogressive events associated with mortality from COVID-19. It could also inhibit cell death and modulate the immune system to attenuate its release, clear the virus from the body, and interrupt the cycle of immune-system dysregulation. Therefore, these effects are presumed to improve the morbidity and mortality of COVID-19 patients. As the numbers of COVID-19 cases and deaths continue to rise exponentially without a clear consensus on potential therapeutic agents, urgent conduction of preclinical and clinical studies to prove the efficacy and safety of lithium is reasonable.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
COVID-19 (coronavirus disease 2019) vaccines induce immunity through different mechanisms. The aim of this study is to compare the titers of specific antibodies in subjects vaccinated with either the ...Pfizer-BioNTech COVID-19 vaccine or the Sinopharm vaccine. This prospective observational cohort included Jordanian adults vaccinated with two doses, 21 days apart, of either of the two aforementioned vaccines. Titers were collected 6 weeks after the administration of the second dose. Overall, 288 participants were included, of which 141 were administered the Pfizer-BioNTech vaccine, while 147 were administered the Sinopharm vaccine. Remarkably, 140 (99.3%) of the Pfizer-BioNTech vaccine recipients had positive IgG titers, while 126 (85.7%) of Sinopharm recipients had positive IgG (
< 0.001). The mean titer for IgG among Pfizer-BioNTech recipients was 515.5 ± 1143.5 BAU/mL, compared to 170.0 ± 230.0 BAU/mL among Sinopharm subjects (
< 0.001). Multivariable regression analysis showed that the Pfizer-BioNTech vaccine positively correlated with positive IgG titers (OR: 25.25; 95% CI: 3.25-196.15;
= 0.002), compared with a negative effect of cardiovascular diseases (OR: 0.33; 95% CI: 0.11-0.99;
= 0.48) on IgG titers. In conclusion, fully vaccinated recipients of the Pfizer-BioNTech vaccine had superior quantitative efficiency compared to Sinopharm recipients. A booster dose is supported for Sinopharm recipients, or those with chronic immunosuppressive diseases.
Coronavirus Disease 2019 (COVID-19) has spread globally with the number of cases exceeding seventy million. Although trials on potential treatments of COVID-19 Acute Respiratory Distress Syndrome ...(ARDS) are promising, the introduction of an effective therapeutic intervention seems elusive. In this review, we explored the potential therapeutic role of volatile anesthetics during mechanical ventilation in the late stages of the disease. COVID-19 is thought to hit the human body via five major mechanisms: direct viral damage, immune overactivation, capillary thrombosis, loss of alveolar capillary membrane integrity, and decreased tissue oxygenation. The overproduction of pro-inflammatory cytokines will eventually lead to the accumulation of inflammatory cells in the lungs, which will lead to ARDS requiring mechanical ventilation. Respiratory failure resulting from ARDS is thought to be the most common cause of death in COVID-19. The literature suggests that these effects could be directly countered by using volatile anesthetics for sedation. These agents possess multiple properties that affect viral replication, immunity, and coagulation. They also have proven benefits at the molecular, cellular, and tissue levels. Based on the comprehensive understanding of the literature, short-term sedation with volatile anesthetics may be beneficial in severe stages of COVID-19 ARDS and trials to study their effects should be encouraged.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
1) Background: multiple theories were proposed to explain the phenomenon of phantom limb pain (PLP). Nevertheless, the phenomenon is still shrouded in mystery. The aim of this study is to explore the ...phenomenon from a new perspective, where quantum tunneling of ions, a promising field in medical practice, might play a major role. 2) Methods: investigators designed a quantum mathematical model based on the Schrödinger equation to examine the probability of potassium ions quantum tunneling through closed membrane potassium channels to the inside of phantom axons, leading to the generation of action potential. 3) Results: the model suggests that the probability of action potential induction at a certain region of the membrane of phantom neurons, when a neuron of the stump area is stimulated over 1 mm
surface area of the membrane available for tunneling is 1.04 × 10
. Furthermore, upon considering two probabilities of potassium channelopathies, one that decreased the energy of the barrier by 25% and another one by 50%, the tunneling probability became 1.22 × 10
and 3.86 × 10
, respectively. 4) Conclusion: quantum models of potassium ions can provide a reliable theoretical hypothesis to unveil part of the ambiguity behind PLP.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
Vaccines are considered the best approach for countering the COVID-19 pandemic. In this study, we compared early side effects associated with vaccination with the Sinopharm and Pfizer–BioNTech ...COVID-19 vaccines. Participants of this observational cohort were interviewed based on semi-structured telephone interviews, with enquiries about side effects that developed after vaccination with each dose of these vaccines. Overall, 1004 participants were enrolled, of which 51.1% received Sinopharm vaccine and 48.9% received the Pfizer–BioNTech vaccine. After the first dose, 46.3% of participants had an adverse reaction, with injection site pain most commonly being reported (33.2%). Participants who received the Pfizer–BioNTech vaccine had significantly higher frequencies of all types of adverse reactions (p < 0.01), with no significant differences in the duration of adverse reactions between the two vaccines. Regarding the second dose, 48.6% of participants had adverse reactions, with injection site pain being most commonly reported (29%). Those who received the Pfizer vaccine reported higher frequencies of all adverse reactions (p < 0.01). However, a longer duration of adverse reactions was seen among Sinopharm vaccine recipients as compared to Pfizer–BioNTech vaccine recipients (p = 0.01). In conclusion, early adverse effects are reported following all types of vaccines but these are more likely to be encountered following the administration of new-generation vaccines. These side effects are mostly mild and treatable.
Previous studies linked a high intensity of ventilation, measured as mechanical power, to mortality in patients suffering from "classic" ARDS. By contrast, mechanically ventilated patients with a ...diagnosis of COVID-19 may present with intact pulmonary mechanics while undergoing mechanical ventilation for longer periods of time. We investigated whether an association between higher mechanical power and mortality is modified by a diagnosis of COVID-19.
This retrospective study included critically ill, adult patients who were mechanically ventilated for at least 24 h between March 2020 and December 2021 at a tertiary healthcare facility in Boston, Massachusetts. The primary exposure was median mechanical power during the first 24 h of mechanical ventilation, calculated using a previously validated formula. The primary outcome was 30-day mortality. As co-primary analysis, we investigated whether a diagnosis of COVID-19 modified the primary association. We further investigated the association between mechanical power and days being alive and ventilator free and effect modification of this by a diagnosis of COVID-19. Multivariable logistic regression, effect modification and negative binomial regression analyses adjusted for baseline patient characteristics, severity of disease and in-hospital factors, were applied.
1,737 mechanically ventilated patients were included, 411 (23.7%) suffered from COVID-19. 509 (29.3%) died within 30 days. The median mechanical power during the first 24 h of ventilation was 19.3 14.6-24.0 J/min in patients with and 13.2 10.2-18.0 J/min in patients without COVID-19. A higher mechanical power was associated with 30-day mortality (OR
1.26 per 1-SD, 7.1J/min increase; 95% CI 1.09-1.46; p = 0.002). Effect modification and interaction analysis did not support that this association was modified by a diagnosis of COVID-19 (95% CI, 0.81-1.38; p-for-interaction = 0.68). A higher mechanical power was associated with a lower number of days alive and ventilator free until day 28 (IRR
0.83 per 7.1 J/min increase; 95% CI 0.75-0.91; p < 0.001, adjusted risk difference - 2.7 days per 7.1J/min increase; 95% CI - 4.1 to - 1.3).
A higher mechanical power is associated with elevated 30-day mortality. While patients with COVID-19 received mechanical ventilation with higher mechanical power, this association was independent of a concomitant diagnosis of COVID-19.
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