Results of recent systematic reviews and meta-analyses found opioids were not necessarily associated with more effectiveness in treatment for patients with advanced cancer.Ensuring that the balance between side effects and adverse effects from medications and potential improvements from medications needs to be carefully considered before prescribing medication. The use of systematic corticosteriods in palliative care for people with cancer is common, however the effectiveness and potential adverse effects of this approach in adults with cancer has not been well studied. Epidemiology
Shortness of breath is the primary reason 3.5% of people present to the emergency department in the United States. Of these individuals, approximately 51% are admitted to the hospital and 13% are dead within a year. Some studies have suggested that up to 27% of hospitalized people develop dyspnea, while in dying patients 75% will experience it. Acute shortness of breath is the most common reason people requiring palliative care visit an emergency department. Up to 70% of adults with advanced cancer also experience dyspnoea. Etymology and pronunciation
English dyspnea comes from Latin dyspnoea, from Greek dyspnoia, from dyspnoos, which literally means "disordered breathing". Its combining forms (dys- + -pnea) are familiar from other medical words, such as dysfunction (dys- + function) and apnea (a- + -pnea). The most common pronunciation in medical English is  disp-NEE-ə, with the p expressed and the stress on the /niː/ syllable.
Some cases have been reported that the anemia is reversed or heme level is improved through use of moderate to high doses of pyridoxine (vitamin B6). In severe cases of SBA, bone marrow transplant is also an option with limited information about the success rate. Some cases are listed on MedLine and various other medical sites. In the case of isoniazid-induced sideroblastic anemia, the addition of B6 is sufficient to correct the anemia. Deferoxamine, a chelating agent, is used to treat iron overload from transfusions. Therapeutic phlebotomy can be used to manage iron overload. Prognosis
Sideroblastic anemias are often described as responsive or non-responsive in terms of increased hemoglobin levels to pharmacological doses of vitamin B6.1- Congenital: 80% are responsive, though the anemia does not completely resolve. 2- Acquired clonal: 40% are responsive, but the response may be minimal. 3- Acquired reversible: 60% are responsive, but course depends on treatment of the underlying cause. Severe refractory sideroblastic anemias requiring regular transfusions and/or that undergo leukemic transformation (5–10%) significantly reduce life expectancy. See also
Anemia
Siderosis
List of hematologic conditions
Hematopoietic stem cell transplantation

References
External links

GeneReviews/NCBI/NIH/UW entry on X-Linked Sideroblastic Anemia and Ataxia