Serum estradiol should be measured in testosterone deficient patients who present with breast symptoms or gynecomastia prior to the commencement of testosterone therapy. Serum prolactin levels should be measured in patients with low testosterone levels combined with low or low/normal luteinizing hormone levels. All of those things can help maintain healthy testosterone levels." Anawalt says that most men who lose 7% to 10% of their body weight see their testosterone levels improve. Even if your testosterone levels are below the recommended range, you still might not have to worry. Regular blood work is typically mandated to monitor testosterone levels, hematocrit, lipid profile, liver enzymes, and prostate-specific markers when appropriate.
As with all AUA guideline documents, recommendations are based where possible on data extracted from the evidence report, which was generated by methodologists from Mayo Clinic. Testing intervals are the expert opinion of the Panel and are provided as a guide to aid clinicians in the follow-up of such patients. Patients who are on long-acting SQ pellets require two separate assessments of testosterone to determine the dose and frequency required. As with short-acting IM testosterone injections, the general recommendation is mid-cycle testing, after equilibration, and halfway between the first two 10-week injections. Given the mechanisms of action of anastrozole, clomiphene citrate, and hCG, patients using these medications should wait a longer period before follow-up blood work is performed. For patients on daily medication, the Panel recommends that patients use medication the day of follow-up blood work. In addition to issues relating to the reliability of compounded products themselves, appropriate clinical studies on pharmacokinetics are lacking.
Another study added single-photon emission computer tomography (SPECT) to evaluate for deficits in myocardial uptake of a labeled perfusion tracer. One of the studies not using the Bruce protocol evaluated findings on electrocardiography (ECG) and Holter monitoring, without specification of an exercise protocol. All but three of the studies evaluated ST-segment depression on an exercise stress test using a modification of the Bruce protocol. Although most studies were described by their authors as randomized, not all indicated the nature of the randomization procedures. In order to be as inclusive as possible, we included all studies identified regardless of Jadad score. Some studies that included randomized controlled designs also included open-label continuation phases.
A year-long study showed benefits of testosterone treatment on ST-segment depression. Three studies used acute treatments with intravenous (IV) testosterone just prior to exercise testing. One study evaluated change in coronary artery calcium score over time, showing no difference between testosterone and placebo. Table 1 summarizes extracted studies that focused on the effect of testosterone on cardiovascular endpoints, including 17 studies on ischemia/angina, 6 on congestive heart failure (CHF), 25 on lipids, and 11 on inflammatory and coagulation markers. In some studies, eugonadal subjects were randomized to receive testosterone or a comparator (usually placebo), and hypogonadal subjects were treated with testosterone only.
Study limitations included failure to report baseline erectile function, failure to identify a population of men with isolated ED, study population heterogeneity, and inconsistent inclusion criteria across studies. Only one man in the treatment group was diagnosed with prostate cancer during the study period; two more who had been on treatment and one on placebo were diagnosed in the following year.229 The Testim Registry in the United States followed PSA changes in men without prostate cancer who were on testosterone therapy. If the Hct exceeds 50%, clinicians should consider withholding testosterone therapy until the etiology of the high Hct is explained.187 While on testosterone therapy, a Hct ≥54% warrants intervention. Another multi-center study compared the effectiveness and risks of transdermal and IM testosterone in 66 men aged years old.

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