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Biomedical subjects

P Prithvi Raj

Publications and source records attributed to P Prithvi Raj.

3 recordsLinked to original sources

Evolution of interventional techniques.

Regional anesthesia techniques are used in pain treatment for more than a century. Although its use for acute pain conditions, such as intraoperative, postoperative and traumatic pain, is very well accepted, its use for the chronic pain syndromes is still lacking a consensus among the practitioners. The interventional techniques, which are mostly originated from the regional anesthetic techniques, have gained an increasing interest for the treatment of chronic pain syndromes during the last few decades. In this review, the development and clinical aspects of epidural injections, epiduroscopy, facet denervaion, intradiscal applications, vertebroplasty, sympathetic neurolysis, and central and peripheral continuous infusion techniques are discussed.

Analgesia, Patient-Controlled↗

Botulinum toxin therapy in pain management.

BTs seem to be a useful treatment in refractory MPS and headache. Presumably BTs work by breaking the spasm or pain cycle giving the patient a "window of opportunity" for traditional conservative measures to have a greater beneficial impact, but several studies suggest that a direct antinociceptive effect distinct from any reduction in muscle spasm may be at play. The major benefit of BTs compared with standard therapies is duration of response. We do not advocate that BTs be used as a first line treatment for MPS or headache. However, in refractory cases where nothing else has worked, it may offer a chance for improvement or cure not otherwise available. For now, it remains an off label, but increasingly accepted, approach in-patients with refractory myofascial pain and headache, who despite multidisciplinary approaches, continue to suffer.

Anti-Dyskinesia Agents↗

Absorption of bupivacaine after topical application to the oropharynx.

Bupivacaine in dosages of 20, 40, 60, or 80 mg was applied by spray to the oropharynx of 24 volunteers. Blood levels of bupivacaine were detectable at 10 minutes, peaked at 60-90 minutes, and were still measurable at 150 minutes after administration. The maximum bupivacaine plasma level recorded in any volunteer was 0.96 -g/mL (after 80 mg). Increase in pulse rate and decrease in systolic blood pressure were significantly correlated with increasing bupivacaine dosage. No clinical signs or symptoms of drug toxicity were observed in any subject.

Absorption↗