Publications by authors named "Mohammed Ayyad"

The word clinical derives from the Greek klinikos, meaning "at the bedside, reflecting medicine's roots in human observation and presence. While a detailed history is foundational, a thoughtful physical examination remains critical for guiding diagnosis and comprehensive care. Yet modern clinical practice, driven by time constraints and reliance on technological advancements, has reduced the physical exam to a perfunctory ritual.

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Background: Thrombocytopenia (TCP) is a common finding in critically ill patients that has been linked to a worse prognosis. Specifically, sepsis is a major risk factor for TCP. Several observational studies have examined the prognostic role of TCP and its correlation with clinical outcomes in patients with sepsis.

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Scurvy, caused by vitamin C deficiency, is increasingly recognized in contemporary clinical practice, particularly among vulnerable populations. Despite its historical association with maritime exploration, scurvy persists in patients with malnutrition, alcoholism, psychiatric disorders, and limited access to fresh produce. This report presents two cases of scurvy diagnosed in a low socioeconomic urban setting, emphasizing the diverse and atypical manifestations of this condition.

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Background: COVID-19 has been linked to autoimmune hemolytic anemia (AIHA), a rare but serious condition causing red blood cell destruction. This systematic review examines the clinical characteristics, management, and outcomes of AIHA in COVID-19 patients.

Methods: A systematic search of PubMed, CINAHL, and Scopus identified 85 studies encompassing 105 patients.

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Background: There is evidence of overlap between autoimmune hepatitis (AIH) and primary biliary cholangitis (PBC), two autoimmune hepatobiliary diseases. This retrospective analysis aimed to investigate extra-hepatic auto-immune diseases and compare outcomes of hospitalized patients with AIH-PBC overlap with AIH and PBC. We hypothesize that there are differences in rates of major adverse liver outcomes (MALO's) when comparing these groups.

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Objective: To evaluate the current evidence on the diagnosis, management, and outcomes of pediatric pulmonary embolism (PE) across varying severity classifications, including massive, submassive, and non-massive presentations.

Methods: A systematic review was conducted following PRISMA guidelines. Searches were performed in PubMed, Scopus, Web of Science, and Cochrane databases up to February 17, 2024.

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BackgroundHeart failure (HF) patients are frequently rehospitalized shortly after discharge. Telemonitoring and Clinical decision support systems (CDSS) health alert follow-up may reduce the mortality and hospitalization in HF patients following discharge.MethodologyWe conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) from PubMed, Web of Science, Scopus, Embase, and Cochrane Central Register of Controlled Trial until May 2024.

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Background: The current classification of acute myocardial infarction (AMI) into ST-segment elevation myocardial infarction (STEMI) and non-ST-segment elevation myocardial infarction (NSTEMI) has limitations in identifying patients with acute coronary occlusion (ACO) who do not exhibit classic ST-elevation. Emerging evidence suggests that a reclassification to "Occlusive Myocardial Infarction" (OMI) may enhance diagnostic accuracy and therapeutic interventions.

Methods: A comprehensive review of the literature was conducted, focusing on the pathophysiology, electrocardiographic (EKG) patterns, and management of ACO.

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Background: Infective endocarditis (IE) presents significant morbidity and mortality, with potential sex differences in clinical profile and outcomes. This is the first meta-analysis that aims to compare the clinical profile and outcomes of IE between males and females.

Methods: We conducted a meta-analysis of nine studies evaluating the clinical profile and outcomes of IE in males versus females extracted from PubMed, EMBASE, SCOPUS, and Cochrane databases up to 1st of Jan 2024.

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Background: Computed tomography (CT) scans are widely used for evaluating children with acute atraumatic altered mental status (AMS) despite concerns about radiation exposure and limited diagnostic yield. This study aims to assess the efficacy of CT scans in this population and provide evidence-based recommendations.

Methods: A systematic review was conducted according to PRISMA guidelines.

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Coronary calcification is a major factor leading to stent under-expansion, and subsequent adverse events. This meta-analysis aimed to evaluate the short and long‑term outcomes of rotational atherectomy (RA), followed by modified balloon (cutting or scoring) (MB) versus plain balloon before drug‑eluting stent implantation for calcified coronary lesions. We searched PubMed, Web of Science (WOS), Scopus, and the Cochrane Library Central Register of Controlled Trials (CENTRAL), from inception until 30 January 2024.

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Although several antithrombotic strategies have been investigated for the management of cryptogenic strokes, ie, ischemic strokes without known etiologies, an optimal antithrombotic strategy for cryptogenic strokes is unknown. We aim to assess oral antithrombotic agents' comparative efficacy and safety after cryptogenic stroke to identify an optimal treatment.A systematic review and meta-analysis synthesizing evidence from randomized controlled trials (RCTs) obtained from PubMed, Embase Cochrane, Scopus, and Web of Science until February 2024.

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Article Synopsis
  • * A case study of a 78-year-old man showed that, despite having a subdurmal hematoma and bleeding within a meningioma, he improved significantly with conservative management rather than immediate surgery.
  • * The findings emphasize that treatment should be tailored to individual cases, showing that conservative approaches can be effective for some patients with stable hemorrhagic meningiomas.
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  • - Cardiac transplantation in the MENA region has improved since its beginnings in 1967, with advancements in surgical techniques and patient care, but still faces unique challenges due to cultural, economic, and infrastructural factors.
  • - Research shows that countries like Saudi Arabia, the UAE, and Lebanon have established cardiac transplant programs, and new technologies like ex-vivo perfusion are enhancing outcomes, yet issues such as organ shortages and varying healthcare resources remain significant obstacles.
  • - To boost cardiac transplantation rates, there's a need for better public awareness, consistent healthcare protocols, and development of regional networks, along with innovations in immunosuppressive therapies and organ preservation techniques.
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  • The study looked at how well two types of blood thinners, DOACs and warfarin, work for patients with special heart pumps called LVADs.
  • They found that both types of blood thinners had similar effects on serious blood clots, but DOACs caused fewer big and small bleeding problems.
  • The researchers believe DOACs could be a safer option than warfarin for these patients, but more studies are needed to be sure.
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Hypertriglyceridemia is characterized by elevated triglyceride levels in the blood, which increases the risk of cardiovascular disease and pancreatitis. This condition stems from multiple factors including lifestyle choices, genetics, and conditions such as diabetes and metabolic syndrome. Apolipoprotein C-III (APOC3), a protein for lipid metabolism, hinders enzymes necessary for breaking down triglycerides and thus plays a key role in hypertriglyceridemia.

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Background: Transoral incisionless fundoplication (TIF) is safe and effective in select patients with hiatal hernias ≤ 2 cm with refractory gastroesophageal reflux disease (GERD). For patients with hiatal hernias > 2 cm, concomitant hiatal hernia (HH) repair with TIF (cTIF) is offered as an alternative to conventional anti-reflux surgery (ARS). Yet, data on this approach is limited.

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Objectives: Post-COVID-19 vaccine-associated vasculitis stands as one of the most serious side effects attributed to COVID-19 vaccines. This complication encompasses diverse manifestations which vary in presentation and severity. Moreover, it can impact patients across all age groups, with a notably elevated incidence in the elderly.

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Article Synopsis
  • Targeting interleukin-23 (IL-23) is a promising treatment for ulcerative colitis (UC), with a focus on two types of inhibitors: IL-23p19 and IL-12/23p40.
  • A systematic review of trials found that these inhibitors significantly improve clinical remission, endoscopic remission, and histologic remission in patients with moderate-to-severe UC.
  • Additionally, targeting IL-23 showed a reduced risk of adverse events compared to placebo, suggesting that it is both effective and safe for managing UC.
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  • TAVR (transcatheter aortic valve replacement) offers treatment for severely ill patients, but outcomes for those with cardiogenic shock (CS) are not well understood.
  • A meta-analysis of five studies showed that 30-day mortality and major vascular complications were significantly higher in patients with CS compared to those without, but there were no significant differences in longer-term outcomes at one year.
  • The study suggests that while short-term risks are elevated for TAVR patients with CS, their long-term prognosis may be similar to those without CS; further research is needed to explore the timing and management strategies of TAVR for this group.
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