Final answer:
True, immunocompromised patients can develop postoperative infections from contaminated dental water. These are classified as iatrogenic diseases and are serious complications that can arise from medical procedures, including dental surgeries involving Streptococcus bacteria entering the bloodstream, leading to conditions like bacterial endocarditis.
Step-by-step explanation:
The statement that immunocompromised patients in whom postoperative infections developed as a result of contaminated dental water is true. These infections can be classified as iatrogenic diseases, which are a type of disease contracted as the result of a medical procedure. This can occur if an instrument used in a medical or dental procedure introduces pathogens such as bacteria into the patient's bloodstream, resulting in infections such as bacterial endocarditis. Additionally, sick patients with weakened immune systems in hospital settings are more susceptible to these infections, which can be exacerbated by factors such as the presence of invasive medical devices like catheters and prostheses, contributing to the formation of biofilms that harbor bacteria.
For instance, during an oral surgery, nicking the patient's gum with a sharp instrument can introduce Streptococcus, which is normally present in the mouth, into the bloodstream. This can lead to a serious infection such as bacterial endocarditis, which affects the heart. Infections that occur in hospital settings, and are associated with medical devices or procedures, are often referred to as nosocomial diseases. The environment in hospitals can sometimes promote the spread of these infections through contaminated medical equipment, which can further complicate the condition of patients.