endocrine cases - Ramey Flashcards
hypothyroidism etiologies
- radioactive iodine therapy
- thyroid surgery
- previous treatment with thiamoid drugs (PTU or methimazole)
- autoimmune thyroiditis
- iodine deficiency
- other pharmaceuticals (lithium, phenylbutazone, and amiodarone)
- hypothalamic or pituitary insufficiency (due to head trauma, sinus surgery, or prior radiation treatment for acne)
labs to order for hypothyroidism
TSH, free T4
cautions and contraindication with OMM when treating hypothyroidism
- Do not overtreat and tire the patient. You don’t want to overstress an already stressed system. Less is frequently more.
- You may see adrenal dysfunction in combination with thyroid dysfunction. Don’t forget to structurally assess the entire system.
- Focus on treating the somatic dysfunction. Don’t chase the pain!
TSH increased and T4 decreased
primary hypothyroidism
TSH and T4 both decreased
central hypothyroidism
TSH increased and T4 normal
subclinical hypothyroidism
TSH and T4 increased
can occur with use of oral contraceptives
when to consider T3 level?
if suspect impaired T4 conversion to T3 in the liver
what can slightly increase TSH levels?
adrenal insufficiency
medical management of hypothyroidism
- Levothyroxine (T4) 1.6ug/kg/day
- Repeat TSH every 6 weeks until stabilized
- Consider liothyronine (T3) if no response to levothyroxine (suspect problem with T4 to T3 conversion in liver)
long-term hypothyroidism management
- Monitor TSH every 6-12 months once stable.
- Monitor cardiac status closely in older patients.
- Stress the importance of compliance with thyroid replacement therapy.
- Achieve/maintain healthy lifestyle including stress reduction (reducing overtraining in athletes), sleep, moderate activity, diet, fluid intake, etc.
lymphatic drainage of thyroid includes? largely drive by? course through?
- via prelaryngeal, pretracheal, and paratracheal nodes
- driven by motion of respiratory diaphragm
- courses through the thoracic inlet on the way back to the heart
sympathetics of thyroid arises from? with contribution from?
- Sympathetics arise from upper thoracic spinal cord segments (T1)
- Contributions from superior (located at level of transverse processes of C2 and C3), middle (C6) and inferior cervical (stellate) ganglia (near 1st rib)
sympathetic fibers action on thyroid? parasympathetic fibers action?
- Sympathetic fibers are vasomotor, not secretomotor
2. Parasympathetic innervation and role not clearly delineated
hypothyroidism OMM treatment
- Lymphatics - thoracic inlet, respiratory diaphragm and other associated structures
- Sympathetics – upper thoracics
T1 (flexed segment)
Clinically, may also see compensatory extended segments around T3-4 - 1st rib (commonly elevated) – inferior cervical (stellate) ganglion
- Cervical spine – remember superior and middle cervical ganglion
- Cranial – altered hypothalamic or pituitary function (SBS compression or other strain pattern)
- Locally in region of thyroid gland to address fascial restrictions (anterior cervical fascia and attachments)
thyroid Chapman’s point
- Anterior – intercostal space between the 2nd and 3rd ribs close to sternum bilaterally
- Posterior – over the transverse process of T2
dx of metabolic syndrome can be made when 3 or more of the following 5 characteristics are present
1. Abdominal obesity Men > 102cm (40 in) Women > 88cm (35 in) 2. BP ≥ 130/85 3. Triglycerides ≥ 150 mg/dl 4. HDL Men 100
possible etiologies of metabolic syndrome
- obesity (especially abdominal)
- insulin resistance
- increasing age
- proinflammatory state
- genetics
- endocrine (postmenopause, possibly andropause, adrenal and thyroid dysregulation)
metabolic syndrome has increased risk of developing?
- type 2 diabetes
2. CV problems
metabolic syndrome involves which organs?
- thyroid gland
- adrenal glands
- pancreas
- liver
- kidney