Condition assessment before treatment
The prescription of evidence-based treatment begins with determining the form of the disease (typical, atypical, mild/abortive) and assessing the degree of severity.
Severity criteria include:
- height and duration of fever;
- severity of general toxic manifestations (headache, lethargy, adynamia, stupor);
- presence of encephalopathy up to the development of "typhoid" status;
- presence of complications.
It is important to consider comorbid conditions. Chronic gastrointestinal pathologies, helminthiases, and protozoan infections (amebiasis, giardiasis, balantidiasis) reduce the natural resistance of the intestine, contributing to a more severe course of infection and the formation of chronic S. typhi carriage.
Conservative antibiotic therapy
Before receiving the results of bacteriological culture, treatment may be prescribed empirically. In clinical practice, fluoroquinolone antibiotics are often the drugs of choice. For example, prescribing ciprofloxacin at a dosage of 500 mg twice daily is effective.
Please note: the use of conventional antipyretic drugs and sulfonamides at the pre-hospital stage in typical typhoid fever is generally ineffective. The fever remains high, and intoxication progresses. The physician must regularly evaluate the dynamics: in the absence of an effect or the development of relapses, the treatment regimen should be immediately adjusted.
Clinical guidelines for initiating therapy
The decision to hospitalize and initiate therapy is often based on typical objective data. Classic criteria for typhoid fever include:
- Prolonged high fever with relative bradycardia (e.g., pulse 80 bpm at 39.4°C) and hypotension.
- Isolated roseolae on the abdominal skin (appearing on days 8–10 of the illness).
- Specific tongue changes: thickened, with dental «indentations» along the edges, densely coated with a gray or brown coating at the root (while the tip of the tongue remains clean).
- Hepatosplenomegaly, meteorism, tenderness, and gurgling in the right iliac region.
- Padalka's sign — shortening of the percussion sound in the right iliac region.
Laboratory hemogram findings reveal leukopenia, anoxynophilia/aneosinophilia, neutropenia with a band neutrophil shift, and relative lymphocytosis.
Surgical treatment and complications
When life-threatening complications develop, conservative tactics are replaced by surgical ones.
Perforation of typhoid ulcers (usually in the jejunum) leads to purulent peritonitis. It manifests as intense abdominal pain, severe weakness, a drop in blood pressure, cold sweat, and tachycardia. Palpation reveals muscle guarding of the anterior abdominal wall, disappearance of peristalsis, and pronounced symptoms of peritoneal irritation. Emergency laparotomy is required.
Intestinal hemorrhage can occur suddenly. It is indicated by a sharp change in condition: body temperature drops (e.g., from 38.9°C to 37.2°C), dizziness increases, heart sounds become muffled, tachycardia appears, and blood pressure drops rapidly. Unlike perforation, symptoms of peritoneal irritation are absent during hemorrhage.
Outcome control and discharge
The patient management plan must include defining the criteria for clinical recovery and controlling body sanitation. Discharge of a convalescent is possible only after confirming laboratory remission.
Immunological methods are used to assess dynamics: co-agglutination reaction, ELISA (antigen detection), and the Widal reaction, indirect hemagglutination assay (antibody detection). A reliable sign of recovery and retrospective confirmation of the diagnosis is a fourfold increase in antibody titers against typhoid bacillus antigens.
Briefly: answers to topical questions
What specific complications of typhoid fever exist, aside from ulcer perforation and intestinal hemorrhage?
The only specific complication of typhoid fever, apart from intestinal perforation and intestinal hemorrhage, is infectious-toxic shock.
- Infectious-toxic shock is a severe condition treated according to the standard shock management protocol.
Other possible consequences of the disease are classified as non-specific (secondary focal lesions). These include pneumonia, thrombophlebitis, cholecystitis, cystitis, myocarditis, parotitis, and otitis, which are caused by the addition of secondary bacterial flora or hematogenous seeding of the pathogen.
Class and exam questions
What serves as absolute laboratory confirmation of the diagnosis of typhoid fever?
Absolute confirmation is the isolation of the pathogen culture from normally sterile media: blood culture, bone marrow culture, or roseola culture.
In what cases does stool or urine culture confirm the diagnosis?
Isolation of the pathogen from stool or urine confirms the diagnosis only in the presence of a typical clinical picture and a 4-fold increase in specific antibody titers over time.
How to clinically distinguish intestinal hemorrhage from ulcer perforation?
In intestinal hemorrhage, a drop in blood pressure and tachycardia are observed against the background of a decreasing temperature, but symptoms of peritoneal irritation are absent. In perforation, peritonitis develops with sharp pain, abdominal muscle rigidity, and absent peristalsis.
What else to study on this topic
- Pathogenesis of typhoid ulcer formation and mesenteric lymph node hyperplasia.
- Immunological diagnostic methods: IHA, ELISA, and dynamic Widal reaction.
- The mechanism of development of Padalka's sign and relative bradycardia.
- Chronic S. typhi carriage: formation and management tactics.
- Differential diagnosis of typhoid fever with salmonellosis and dysentery.
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