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Limitations of medical therapy in patients with pure coronary spastic angina

Shozo Sueda1, Hiroaki Kohno, Hiroshi Fukuda

  • 1Department of Cardiology, Saiseikai Saijo Hospital, Saijo City, Japan.

Chest
|February 11, 2003
PubMed

Insights

Long-acting calcium antagonists were effective for pure coronary spastic angina in only 38% of patients. Medical therapy limitations were noted in 42%, particularly for those with diffuse spasms or a longer history of chest pain.

Area of Science:

  • Cardiology
  • Pharmacology

Background:

  • Pure coronary spastic angina (PCSA) is a condition characterized by chest pain due to coronary artery spasms.
  • Effective long-term management strategies for PCSA remain an area of clinical interest.

Purpose of the Study:

  • To evaluate the efficacy of medical treatment, specifically long-acting calcium antagonists, for patients diagnosed with pure coronary spastic angina.

Main Methods:

  • A cohort of 71 consecutive patients with PCSA, confirmed by coronary arteriography, were studied over a minimum 2-year follow-up period.
  • Patients received treatment with long-acting calcium antagonists.
  • Response to treatment was assessed by the disappearance or persistence of chest pain attacks.

Main Results:

  • Medical treatment with long-acting calcium antagonists was effective in 38% of patients (27 out of 71).
  • A significant proportion of patients (62%) continued to experience chest pain attacks despite treatment.
  • Positive treatment responses were observed in female patients and those with ST-segment elevation during spasm provocation tests.
  • Poor responses were associated with a longer history of chest pain and diffuse coronary spasms.

Conclusions:

  • Long-acting calcium antagonists demonstrate limited efficacy in a substantial portion (42%) of patients with pure coronary spastic angina.
  • Treatment effectiveness varied based on patient demographics and specific diagnostic findings.
  • Further research may be needed to optimize therapeutic strategies for PCSA.
Abstract

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