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Related Concept Videos

Esophageal Strictures-II: Clinical Features and Management01:26

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Patients with esophageal strictures often experience a range of symptoms. Initially, they may have difficulty swallowing solid foods, which can progress to include liquids. Additional symptoms may involve chest pain or discomfort, regurgitating food and fluids, heartburn, unintentional weight loss, coughing or choking during meals, and hoarseness.
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Gastroesophageal reflux disease, or GERD, is a persistent medical condition that affects many individuals worldwide. Its clinical manifestations can vary greatly, making diagnosis and management challenging for healthcare professionals. The following is a comprehensive overview of the clinical manifestations, assessment, and management strategies for GERD.
Clinical Manifestations
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Esophageal Perforation-II: Clinical Manifestations and Management01:28

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Esophageal perforations manifest in various clinical forms, influenced by factors such as the perforation's cause and location (cervical, intrathoracic, or intra-abdominal), the extent of contamination, and potential injury to adjacent mediastinal structures. The timing between the perforation occurrence and treatment initiation also affects the clinical presentation.
Clinical Manifestations:
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Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin01:26

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Directly acting muscle relaxants like dantrolene and botulinum toxin (BoNT) have distinct mechanisms and applications. Dantrolene, a hydantoin derivative, acts on the ryanodine receptor (RYR1) in skeletal muscle cells. RYR1 are calcium channels present at the sarcoplasmic reticulum membrane. In response to excitation, they release calcium ions from the sarcoplasmic reticulum to the cytosol. Calcium promotes actin-myosin-mediated contraction of muscles.
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Acute Pancreatitis II: Clinical Manifestations and Management01:30

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Acute pancreatitis presents a complex medical emergency characterized by rapid onset inflammation of the pancreas, demanding timely diagnosis and management to prevent complications. The condition primarily manifests through severe upper abdominal pain that often radiates to the back. This pain intensifies following the consumption of fatty foods. Accompanying symptoms such as nausea, vomiting, abdominal distention, fever, dyspnea, cyanosis, and jaundice can vary in intensity but significantly...
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Related Experiment Video

Updated: Jan 16, 2026

Isolation and Quantification of Botulinum Neurotoxin From Complex Matrices Using the BoTest Matrix Assays
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Botulism Sequelae: A Systematic Review.

Mark Kosenko1, Veronika Rogozhina1, Tamerlan Erdniev1

  • 1Department of Paediatrics and Paediatric Infectious Diseases, Institute of Child's Health, I.M. Sechenov First Moscow State Medical University, Sechenov University, Moscow, Russia.

Open Forum Infectious Diseases
|January 15, 2026
PubMed
Summary
This summary is machine-generated.

Botulism survivors frequently experience long-term fatigue, weakness, and respiratory issues. These persistent symptoms can impact quality of life, necessitating further research into post-botulism sequelae.

Keywords:
Clostridium botulinumbotulismpost-infectious sequelaequality of lifesystematic review

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Public Health

Background:

  • Botulism is a severe neuroparalytic illness caused by botulinum neurotoxins.
  • While acute botulism is well-studied, its long-term effects (sequelae) are less understood.
  • This review synthesizes evidence on post-botulism sequelae to improve clinical understanding.

Purpose of the Study:

  • To systematically review and synthesize existing literature on the long-term sequelae of botulism.
  • To identify common symptoms and their persistence after recovery from botulism.
  • To guide future research and clinical management strategies for botulism survivors.

Main Methods:

  • A systematic search was performed across major databases (MEDLINE, EMBASE, Web of Science).
  • Included studies were observational, case series, and case reports of foodborne, wound, or infant botulism (excluding iatrogenic cases).
  • Risk of bias was assessed using CASP checklists.

Main Results:

  • Nine studies (2 case-control, 7 cohort) involving 415 botulism cases were included.
  • Common long-term sequelae include fatigue (up to 84.6%), limitations in vigorous activities (up to 64.0%), weakness (up to 76.9%), and dyspnea (up to 92.3%).
  • Psychosocial dysfunction and autonomic dysfunction were also reported, with some symptoms persisting for over six years.

Conclusions:

  • Botulism survivors often face significant long-term sequelae, including fatigue, respiratory problems, and psychosocial issues.
  • Persistent symptoms can negatively affect survivors' quality of life.
  • Standardized outcome measures and longitudinal studies are crucial for better understanding and managing post-botulism sequelae.