In cardiology, hibernating myocardium is a state when some segments
of the myocardium exhibit abnormalities of contractile function. These
abnormalities can be visualised with echocardiography,  cardiac magnetic resonance imaging (CMR), nuclear medicine (PET) or ventriculography. Echocardiography: A wall motion abnormality at rest which improves during a low-dose dobutamine stress test is classified as "hibernating myocardium." Low dose dobutamine stimulates contractile function and thus helps to predict functional recovery after revascularization. Cardiac magnetic resonance: The most frequently used MR contrast agents based on Gd-chelates accumulate in the extracellular space which is increased in scarred myocardium. This leads to a signal increase which can be visualised with the "late gadolinium enhancement technique." This is probably the most accurate way to visualise scarred myocardium. An alternative (or additional) technique with CMR is the use of low dose dobutamine similar to echocardiography. PET: The finding of a perfusion or metabolic mismatch between PET-FDG and PET-NH3 is indicative of decreased metabolism. The wall of the affected segments is hypo-, a-, or dyskinetic.The phenomenon is highly significant clinically because it usually manifests itself in the setting of chronic ischemia, that is potentially reversible by revascularisation via cardiac catheterization. The regions of myocardium are still viable and can return to normal function. There develops a new steady state between myocardial blood flow (MBF) and myocardial function, MBF reduced and in consequence function is reduced too. The clinical situations where one can expect hibernating myocardium are:
chronic stable angina
unstable angina
silent ischemia
after AMI

See also
Stunned myocardium
Myocardial scarring


== References ==
Ophiasis is a form of alopecia areata characterized by the loss of hair in the shape of a wave at the circumference of the head.It gets its name from Greek ὄφις ophis snake because of the apparent similarity to a snake-shape and the pattern of hair loss.The term "sisaipho" is used to characterize the inverse pattern. Sisaipho is, almost, the reverse spelling of ophiasis. It is also called "ophiasis inversus".This form of hair loss "...targets the bodys own hair follicles, resulting in hair loss..." and although the immune system could be attacking hair follicle melanocytes, dermal papilla cells, and keratinocytes,” the foundational cause of this disease is yet to be confirmed. Pattern of hair loss
This is one among many types of patterns of hair loss, “in which they have band-link hair loss across the occiput.” Hair loss can take the form of patches of hair being removed and there can also be spontaneous regrowth as well. Duration of hair loss
Ophiasis hair loss is one form in which the hair loss can further deteriorate and can extend “for more than a year.”

References
External links

Cheng Tan, MD; Wen-Wuan Zhu, MD. "Mosaic Hair Regrowth Pattern of Ophiasis and Androgenic Alopecia in a Patient With Alopecia Areata Totalis". Medscape. {{cite web}}:  CS1 maint: uses authors parameter (link)