Scombroid fish poisoning: successful treatment with cimetidine is a 1998 journal article by Guss, published in Undersea Hyperb Med 25(2). Its subject is the treatment of illness caused by eating fish containing excess histamine, a concern for divers and clinicians because its symptoms can overlap with other urgent problems.
What is scombroid fish poisoning?
Scombroid poisoning is a foodborne illness associated with fish in which histamine has accumulated after improper handling or storage. Bacteria can convert naturally present histidine in fish muscle into histamine; cooking does not reliably remove the hazard once that histamine is present.
The illness can resemble an allergic reaction. Flushing, headache, rash, itching, palpitations and gastrointestinal symptoms are among the possible features, with severity varying between people and episodes. The term «scombroid» reflects its association with certain fish, but other fish can also be involved.
Why does the title focus on cimetidine?
Histamine acts through several receptor types in the body. Cimetidine is an H2-receptor antagonist: it blocks one pathway through which histamine affects tissues, particularly in the stomach. That pharmacology makes it a relevant subject in a discussion of histamine-mediated illness, but the title alone does not establish how a particular treatment should be used.
Clinical assessment matters because similar symptoms can have different causes, including a true fish allergy or another foodborne illness. Treatment decisions depend on the presentation and its severity. A diving-medicine physician or other qualified clinician should assess a diver with concerning symptoms rather than treating the episode as a routine food reaction.
Why does this matter in diving medicine?
Symptoms after a meal can arise before, during or after a dive, complicating the assessment of a diver who feels unwell. Flushing, headache, nausea or a rapid heartbeat may prompt consideration of several causes; the timing of symptoms, the food eaten and whether others who shared it are affected can help guide clinical evaluation.
In the water, illness can impair judgment, attention and the ability to manage equipment or assist a buddy. After surfacing, symptoms should not automatically be attributed to pressure exposure. A careful history helps clinicians distinguish a possible food-related reaction from decompression illness, barotrauma, infection or other conditions that need different assessment.
What concepts help frame the article?
The topic connects food safety, pharmacology and the practical problem of evaluating symptoms in divers. These concepts are useful when reading a clinical report on a treatment, without assuming that one intervention applies to every case.
- Histamine formation: bacterial conversion of histidine in fish can produce the agent responsible for scombroid symptoms.
- Receptor pharmacology: cimetidine blocks H2 receptors, one of several pathways through which histamine acts.
- Differential diagnosis: food-related illness and diving-related conditions can share symptoms, so context and clinical assessment matter.
- Prevention: appropriate fish handling and storage limit the conditions that allow histamine to accumulate.
How does this topic fit into diving and hyperbaric research?
Undersea Hyperb Med places the article within a clinical field concerned with health problems that affect divers and people working in underwater or hyperbaric settings. Food poisoning is not caused by pressure, but it can become operationally important when symptoms arise around a dive or are mistaken for a pressure-related illness.
Reports addressing treatment questions sit alongside the broader work of recognizing hazards, separating overlapping diagnoses and applying established medical knowledge to diving contexts. For divers, the practical point is to treat an unexplained illness as a reason to stop diving and seek appropriate medical assessment, especially if symptoms are severe or progressing.
Frequently asked questions
Is scombroid poisoning the same as a fish allergy?
Does cooking make fish with accumulated histamine safe?
Should a diver take cimetidine for suspected scombroid poisoning?
Citation details
- Title: Scombroid fish poisoning: successful treatment with cimetidine
- Authors: Guss, DA
- Year: 1998
- Published in: Undersea Hyperb Med 25(2)
- Identifiers: PMID 9670438
- Record type: Journal article
- Repository record: Rubicon Research Repository, handle 123456789/2294
This page is an original summary written by the Rubicon editors from the publication’s bibliographic record. It does not reproduce the paper, its abstract or its data; consult the publication itself for its methods and findings.