PMID- 24627347 OWN - NLM STAT- MEDLINE DCOM- 20150114 LR - 20240130 IS - 1532-6551 (Electronic) IS - 1071-3581 (Linking) VI - 21 IP - 3 DP - 2014 Jun TI - Experience of low-dose aminophylline use to relieve minor adverse effects of dipyridamole in patients undergoing stress myocardial perfusion imaging. PG - 563-9 LID - 10.1007/s12350-014-9883-7 [doi] AB - BACKGROUND: Intravenous administration of aminophylline is widely adopted to reverse dipyridamole-related adverse effects (AEs) during stress myocardial perfusion imaging (MPI). The study aimed to investigate the efficacy of lower-dose aminophylline to relieve minor AEs. METHODS: 2,250 consecutive patients undergoing dipyridamole-stressed MPI were enrolled. Information concerning AE occurrence and dosages of aminophylline was collected to evaluate the efficacy of lower-dose aminophylline. A logistic regression was used to determine independent predictors of dipyridamole-related AE occurrence. RESULTS: No severe AE was noted. Overall mild AE incidence was 37.0% (833/2,250 patients). Initial low-dose (25 mg) aminophylline relieved symptoms in 98.8% of patients with mild AEs (823/833 patients). An extra 25 mg aminophylline sufficed to reverse all such AEs. Mean body mass index (BMI) differed significantly between patients with and without any AE [25.6 vs 25.1 (P = .009)]. There was no significant difference between two subgroups in mean age, male gender prevalence, body height and weight, dipyridamole dose/BMI, or prevalence of significant perfusion defect(s) on MPI. Multivariable logistic regression demonstrated BMI remained the independent predictor of dipyridamole-related AE occurrence (odds ratio 1.028, 95% confidence interval 1.007-1.049, P = .01). CONCLUSION: Low-dose (<==50 mg, and usually 25 mg) aminophylline seems sufficient to relieve mild dipyridamole-related AEs during stress MPI. FAU - Lin, Li-Fan AU - Lin LF AD - PET center and Department of Nuclear Medicine, Tri-Service General Hospital & National Defense Medical Center, 325, Cheng-Kung Road, Section 2, Taipei, 114, Taiwan, ROC. FAU - Cheng, Cheng-Yi AU - Cheng CY FAU - Hou, Cheng-Han AU - Hou CH FAU - Ku, Chih-Hung AU - Ku CH FAU - Tseng, Neng-Chuan AU - Tseng NC FAU - Shen, Daniel H Y AU - Shen DH LA - eng PT - Journal Article DEP - 20140314 PL - United States TA - J Nucl Cardiol JT - Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology JID - 9423534 RN - 0 (Cardiotonic Agents) RN - 0 (Radiopharmaceuticals) RN - 0 (Thallium Radioisotopes) RN - 0 (Vasodilator Agents) RN - 27Y3KJK423 (Aminophylline) RN - 64ALC7F90C (Dipyridamole) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Aminophylline/*administration & dosage MH - Cardiotonic Agents/administration & dosage MH - Comorbidity MH - Coronary Artery Disease/*diagnostic imaging/*epidemiology MH - *Dipyridamole/adverse effects MH - Dose-Response Relationship, Drug MH - Drug Interactions MH - Drug-Related Side Effects and Adverse Reactions/*epidemiology MH - Exercise Test/adverse effects/statistics & numerical data MH - Female MH - Humans MH - Incidence MH - Injections, Intravenous MH - Male MH - Middle Aged MH - Myocardial Perfusion Imaging/adverse effects/*statistics & numerical data MH - Prevalence MH - Radiopharmaceuticals MH - Retrospective Studies MH - Risk Factors MH - Thallium Radioisotopes MH - Tomography, Emission-Computed, Single-Photon/adverse effects/*statistics & numerical data MH - Treatment Outcome MH - Vasodilator Agents/adverse effects MH - Young Adult EDAT- 2014/03/15 06:00 MHDA- 2015/01/15 06:00 CRDT- 2014/03/15 06:00 PHST- 2013/05/16 00:00 [received] PHST- 2014/02/25 00:00 [accepted] PHST- 2014/03/15 06:00 [entrez] PHST- 2014/03/15 06:00 [pubmed] PHST- 2015/01/15 06:00 [medline] AID - S1071-3581(23)07288-4 [pii] AID - 10.1007/s12350-014-9883-7 [doi] PST - ppublish SO - J Nucl Cardiol. 2014 Jun;21(3):563-9. doi: 10.1007/s12350-014-9883-7. Epub 2014 Mar 14.