Thatch screw-pine (Pandanus tectorius) has traditional uses in various cultures, particularly in Southeast Asia and the Pacific Islands, for a range of medicinal purposes. Ethnobotanical records indicate its leaves, roots, and fruits have been used in folk medicine to treat ailments such as headaches, rheumatism, and chest pains. The use of Thatch screw-pine for chest pain appears primarily in traditional medicine systems, where "chest pain" may refer broadly to discomfort in the chest area, not necessarily to the cardiac-related chest pain (angina) as defined in modern medicine.

However, scientific studies validating the efficacy of Thatch screw-pine specifically for chest pain are either lacking or extremely limited. No robust clinical trials or pharmacological studies have established a mechanism by which compounds in Pandanus tectorius relieve chest pain or provide cardiovascular benefits. Most available research focuses on its antioxidant, antimicrobial, or anti-inflammatory properties in general.

In summary, the use of Thatch screw-pine for chest pain is rooted in tradition rather than scientific validation. While it is documented in historical and ethnobotanical sources, there is insufficient scientific evidence to support its use for this indication, and its efficacy remains unconfirmed by modern research.