Medical Chronicle May 2017 | Page 49

CLINICAL PAIN CHRONIC PAIN, DEPRESSION LINK Chronic pain can be lethal. Its unwelcome presence and debilitating impact can considerably increase the risk of suicide among people living with it. Several large-scale epidemiological surveys have now established that the presence of any pain condition doubles the risk of suicide in the general population. Pain and depression commonly co-exist. The presence of pain negatively affects the ability to recognise and treat depression. There is a 2.5 to 10 times increase in anxiety or major depression in patients with pain. Depressed patients are more likely to have pain symptoms than low mood. Even when depression is recognised in conjunction with pain, clinicians are more likely to focus on treating the pain and are less likely to consider psychological treatments, leading to poorer outcomes. For patients with chronic pain, depression often goes undetected. Untreated depression may adversely affect the ability to treat pain. The argument is strong to include screening for pain when assessing patients with long-term conditions of depression. The presence of chronic pain appears to increase the resistance of depression to treatment. A combined diagnosis of both pain and depression also accounts for greater healthcare utilisation in primary and secondary care. It is known that there are sets of beliefs held by patients about pain, its aetiology, severity, predictability and interference in daily life. Negative distortions of these conditions bear resemblance to the cognitive triad of depression: a negative sense of the future and the environment. There are also mental factors involved in the development of these cognitions, including memories, expectations, attitudes and focus of attention. Patients tend to predict their pain to worsen or perceive worse chances of attaining pain control. MANAGING PAIN AND DEPRESSION In patients suffering from pain and co-occurring depression, the depression may be misdiagnosed due to shared somatic symptoms between pain and depression, such as sleep disturbance, weight and appetite changes, and changes in libido and/or energy. It requires a whole-person perspective to address physical, psychological and social factors. Lifestyle measures, psychological therapies and drug treatment all have roles to play. When selecting an antidepressant drug, it is logical to choose one that boosts the common neurotransmitters that are involved in both pain and depression pathways. Antidepressants can be used in treatment of chronic pain. Serotonergic-noradrenergic antidepressants (SNRIs) appear to be more effective than serotonergic antidepressants (SSRIs). SUICIDALITY IN PAIN Although many people can self-manage their pain conditions, a substantial proportion require specialist help. Approximately 25% of individuals who attend MDT pain centres for treatment report at least one suicide attempt or self-harming incident in the past. A survey by Hitchcock found that 50% of chronic pain patients had serious thoughts of committing suicide Dr Anusha Lachman, Child and Adolescent psychiatrist with the University of Stellenbosch, based at Tygerberg Hospital due to their pain disorder. Drug overdose is the most common means for a suicide attempt and self-harm among chronic pain patients. References available on request. Total Pain Solution Tramadol Hydrochloride and Paracetamol Moderate to moderately severe pain in adults 1 Severe, chronic intractable pain 3 Chronic intractable pain 5 Rapid-acting, longer duration Once-daily, 24-hr pain control 4 Continuous 72-hour analgesic • Chronic non-cancer pain analgesia 2 • Acute pain • Sub-acute pain • Chronic cancer pain • Chronic cancer pain • Chronic non-cancer pain 6 • Chronic pain S5 TRAMACET ® tablets. Composition: Each tablet contains 37,5 mg tramadol hydrochloride and 325 mg paracetamol Reg. No. 35/2.9/0010. Full prescribing information refer to the package insert. (May 2008) S6 JURNISTA ® 4 mg extended-release tablets. Each JURNISTA ® 4 mg extended-release tablet contains 4,36 mg and delivers 4 mg hydromorphone hydrochloride, equivalent to 3.56 mg hydromorphone base. Reg. No. 41/2.9/1136. S6 JURNISTA ® 8 mg extended-release tablets. Each JURNISTA ® 8 mg extended-release tablet contains 8,72 mg and delivers 8 mg hydromorphone hydrochloride, equivalent to 7,12 mg hydromorphone base. Reg. No. 41/2.9/1130. S6 JURNISTA ® 16 mg extended-release tablets. Each JURNISTA ® 16 mg extended-release tablet contains 16,35 mg, and delivers 16 mg hydromorphone hydrochloride, equivalent to 14,24 mg hydromorphone base. Reg. No. 41/2.9/1131. Full prescribing information refer to the package insert. (October 2011) S6 DUROGESIC ® 12 mcg/h transdermal patch. Each 5,25 cm 2 transdermal patch contains 2,1 mg fentanyl delivering 12.5 mcg fentanyl/h. Reg. No. A40/2.9/0203 S6 DUROGESIC ® 25 mcg/h transdermal patch. Each 10,5 cm 2 transdermal patch contains 4,2 mg fentanyl delivering 25 mcg fentanyl/h. Reg. No. 28/2.9/0288 S6 DUROGESIC ® 50 mcg/h transdermal patch. Each 21 cm 2 transdermal patch contains 8,4 mg fentanyl delivering 50 mcg fentanyl/h. Reg. No. 28/2.9/0289 S6 DUROGESIC ® 75 mcg/h transdermal patch. Each 31,5 cm 2 transdermal patch contains 12,6 mg fentanyl delivering 75 mcg fentanyl/h. Reg. No. 28/2.9/0290 S6 DUROGESIC ® 100 mcg/h transdermal patch. Each 42 cm 2 transdermal patch conta ins 16,8 mg fentanyl delivering 100 mcg fentanyl/h. Reg. No. 28/2.9/0291 For full prescribing information, refer to the latest package insert (March 2013). References: 1.Tramacet ® package insert. July 2014. 2.Dhillon S. Tramadol/paracetamol fixed-dose combination. Clin Drug Investig 2010;30(10):711-738. 3.Jurnista ® package insert. October 2010. 4. Drover DR, Angst MS, Valle M, et al. Input characteristics and bioavailability after administration of immediate and a new extended-release formulation of hydromorphone in healthy volunteers. Anesthesiology 2002; 97(4):827-836. 5.Durogesic ® package insert. March 2013. 6.Kornick CA, Santiago-Palma J, Moryl N, et al. Benefit-risk assessment of transdermal fentanyl for the treatment of chronic pain. Drug Safety 2003;26(13):951-973. JANSSEN PHARMACEUTICA (PTY) LTD/(EDMS) BPK; (Reg. No./Regnr. 1980/011122/07); Building 6, Country Club Estate, 21 Woodlands Drive, Woodmead, 2191. www.janssen.co.za. Medical Info Line: 0860 11 11 17. Cert. no.: PHZA/PAI/1015/0001 4124 Jurnista SAJAA advert - Dupe Material.indd 1 2016/03/23 2:10 PM MEDICAL CHRONICLE | MAY 2017 49