Treatment for Spasm Below the Ribs
The first-line treatment for spasm below the ribs is calcium channel blockers (such as verapamil 2.5-5 mg, diltiazem 2.5-5 mg) or nitroglycerin (100-200 μg), which should be administered to effectively reduce spasm. 1
Pharmacological Management
First-line Treatments
- Calcium channel blockers are highly effective for treating muscle spasm below the ribs and should be considered first-line therapy 1
- Nitroglycerin (100-200 μg) can be used alone or in combination with calcium channel blockers to provide rapid relief of spasm 1
- Dicyclomine (Bentyl) is effective for gastrointestinal smooth muscle spasm through both anticholinergic and direct smooth muscle relaxant effects 2, 1
- Hyoscine butylbromide (Buscopan) is an effective antimuscarinic that may be more effective when administered intramuscularly for persistent spasm 1
Second-line Treatments
- Alpha-receptor blockers can be beneficial, especially in patients who do not respond completely to calcium channel blockers and nitrates 1
- Non-steroidal anti-inflammatory drugs (NSAIDs) can be used as adjunctive therapy for pain control and anti-inflammatory effects 3
- Low-dose ketamine (0.3 mg/kg over 15 minutes) can be considered as an alternative to opioids for severe pain 3
Non-pharmacological Approaches
Heat and Cold Therapy
- Application of local heat can effectively reduce muscle spasm by decreasing muscle tone and increasing blood flow to the affected area 4
- Cold therapy can also be effective for acute spasm and may be more beneficial in certain cases, particularly when inflammation is present 4
- Alternating heat and cold applications may provide enhanced relief for persistent spasm 4
Physical Interventions
- Immobilization of the affected area can help reduce pain and prevent exacerbation of spasm 3
- For persistent cases related to rib pathology, intercostal nerve blocks may provide immediate relief, though evidence for long-term efficacy is limited 5
Specific Management Based on Underlying Cause
Coronary Vasospasm (Prinzmetal's Angina)
If spasm below the ribs is due to coronary vasospasm:
- Long-acting nitrates and calcium channel blockers are the definitive first-line treatment 1
- Discontinuation of smoking is essential as it can trigger and worsen vasospasm 1
- For very active disease, a combination of nitrates and two different classes of calcium channel blockers may be necessary 1
Gastrointestinal Spasm
If the spasm is related to gastrointestinal issues:
- Dicyclomine hydrochloride (10-20 mg orally) is highly effective due to its dual mechanism of action 2, 1
- Reducing fiber in the diet can decrease abdominal distension and associated spasm 1
- Peppermint oil may help relieve gastrointestinal spasm through its antispasmodic properties 1
Rib-Related Spasm
If the spasm is related to rib fractures or rib syndrome:
- Regular administration of acetaminophen every 6 hours is recommended as first-line treatment 3
- For twelfth rib syndrome, conservative treatment including local heat or ice packs, rest, and oral analgesics should be tried first 5
- In severe cases with unstable chest wall, surgical fixation may be considered 1, 3
Monitoring and Follow-up
- Pain from rib-related spasm typically improves significantly within 4 weeks with appropriate management 3
- Complete healing of rib fractures usually occurs within 6-8 weeks, but full recovery may take longer 3
- Persistent spasm beyond expected recovery time may indicate an underlying condition requiring further evaluation 6
Cautions
- Use caution with spasmolytics in patients with cardiogenic shock, severely reduced ejection fraction, or severe aortic stenosis 1
- Beta-blockers have theoretical adverse potential in coronary spasm and their clinical effect is controversial 1
- For painful rib syndrome, unnecessary investigations and treatments should be avoided as it is a clinical diagnosis 6