100 QUESTIONS IN CARDIOLOGY

The diagnostic yield from cardiac electrophysiology ranges from 14–70%. This variability is primarily dependent on the char- act ...

7 DiMarco P, Philbrick JT. Use of ambulatory electrocardiographic (Holter) monitoring. Ann Intern Med1990; 111133 : 53–68. 8 Bas ...

77 Should the patient with trifascicular disease be routinely paced? If not, why not? Simon Sporton Normal activation of the ven ...

therefore be directed towards the detection of these conditions and the use of therapies known to improve their prognosis. FFuur ...

78 Who should have VVI pacemakers and who should have dual chamber pacemakers? What are the risks of pacemaker insertion? Alista ...

2 Andersen HR, Thuesen L, Bagger JP et al. Prospective randomised trial of atrial versus ventricular pacing in sick-sinus syndro ...

79 Can a patient with a pacemaker touch an electric fence? ...have an MRI scan? ...go through airport metal detectors? ...use a ...

of the body from the site of the device implant and should hold the device to the opposite ear. FFuurrtthheerr rreeaaddiinngg Gi ...

80 What do I do if a patient has a pacemaker and needs cardioversion? Alistair Slade Patients with pacemakers often require card ...

81 What do I do about non-sustained ventricular tachycardia on a 24 hour tape? Simon Sporton The term non-sustained ventricular ...

remain about the prophylactic implantation of ICDs in such patients. The decision to implant is easier if there is a history of ...

82 How do I treat torsade de pointes at a cardiac arrest? Simon Sporton Consideration of the electrophysiological disturbances p ...

necessary. Ventricular pacing should be maintained and the ECG monitored while the factors predisposing to the development of to ...

83 How do I assess the patient with long QT? Should I screen relatives, and how? How do I treat them? J Benhorin Patients affect ...

be beneficial. Currently, there is no consensus regarding the need for therapy in asymptomatic patients, unless their phenotype ...

84 How do I investigate the relatives of a patient with sudden cardiac death? Niall G Mahon and W McKenna In patients aged over ...

death is likely to have been sporadic and the chances of siblings being affected are low. However, this inference must be temper ...

85 What percentage of patients will suffer the complications of amiodarone therapy, and how reversible are the eye, lung, and li ...

normal or elevated in Type 1 hyperthyroidism but is very low or absent in Type 2 hyperthyroidism. Interleukin-6 levels are norma ...

4 Martino E, Safran M, Aghini-Lombardi F et al. Environmental iodine intake and thyroid dysfunction during chronic amiodarone th ...