39 Example Sentences of "may lead to"

Here are 39 examples "may lead to" there used in a sentence.

1. This may lead to various neurological sequelae including presentation with cerebral palsy, mental retardation and seizures
2. Different physiological pathways may lead to shortness of breath including via chemoreceptors, mechanoreceptors, and lung receptors
3. High intensities of UVB light are hazardous to the eyes, and exposure can cause welder's flash and may lead to cataracts, pterygium, and pinguecula formation
4. There are a number of other regional organisations that, while not supranational unions, have adopted or intend to adopt policies that may lead to a similar sort of integration in some respects
5. Atypical pneumonia can also have a fungal, protozoan or viral cause.In the past, most organisms were difficult to culture. However, newer techniques aid in the definitive identification of the pathogen, which may lead to more individualized treatment plans
6. The malabsorption of fats may lead to symptoms that include indigestion, reflux, deficit of fat-soluble vitamins, hemorrhoids, gall stones, intolerance to fatty foods, intolerance to alcohol, nausea and vomiting attacks, abdominal bloating, and constipation
7. Nasal allergy may cause recurrent sinusitis because of the obstruction to the sinus ostia. It may lead to the formation of nasal polypi. Nasal allergy can result in serious otitis media and orthodontic problems. Patients of nasal allergy have four times more risk of developing bronchial asthma
8. Researchers in futures studies and transhumanism are investigating how the accelerating rate of scientific progress may lead to a technological singularity in the 21st century that would profoundly and unpredictably change the course of human history, and result in Homo sapiens no longer being the dominant life form on Earth
9. As many as half of all infants born to mothers with chlamydia will be born with the disease. Chlamydia can affect infants by causing spontaneous abortion; premature birth; conjunctivitis, which may lead toblindness; and pneumonia. Conjunctivitis due to chlamydia typically occurs one week after birth or gonorrhea (2â€"5 days))
10. Because the septal cartilage has no blood supply of its own and receives all of its nutrients and oxygen from the perichondrium, an untreated septal hematoma may lead to destruction of the septum. Immediate drainage is necessary. Failure to recognise septal hematomas, or treat in a timely fashion, can cause a saddle nose deformity
11. Children with ADHD and learning disabilities may need extra help to develop social skills. The impulsive characteristics of an ADHD child may lead to poor peer relationships. Children with poor attention spans may not tune into social cues in their environment, making it difficult for them to learn social skills through experience
12. Medical procedures, such as the insertion of a central venous catheter into one of the chest veins or the taking of biopsy samples from lung tissue, may lead to pneumothorax. The administration of positive pressure ventilation, either mechanical ventilation or non-invasive ventilation, can result in barotrauma leading to a pneumothorax
13. Prolonged and unprotected exposure of the respiratory system in a dust storm can also cause silicosis which, if left untreated, will lead to asphyxiation; silicosis is an incurable condition that also may lead tolung cancer. There is also the danger of keratoconjunctivitis sicca which, in severe cases without immediate and proper treatment, can lead to blindness
14. One general danger of hamartoma is that they may impinge into blood vessels, resulting in a risk of serious bleeding. Because hamartoma typically lacks elastic tissue, it may lead to the formation of aneurysms and thus possible hemorrhage. Where a hamartoma impinges into a major blood vessel, such as the renal artery, hemorrhage must be considered life-threatening
15. Both the pH-stat and alpha-stat strategies have theoretical disadvantages. α-stat method is the method of choice for optimal myocardial function. The pH-stat method may result in loss of autoregulation in the brain. By increasing the cerebral blood flow beyond the metabolic requirements, the pH-stat method may lead to cerebral microembolisation and intracranial hypertension
16. The signs and symptoms of asbestosis do not manifest until after an appreciable latency, often several decades under current conditions in the US. The primary symptom of asbestosis is generally the slow onset of dyspnea, especially on exertion. Clinically advanced cases of asbestosis may lead to respiratory failure. On auscultation of the lungs, the physician may hear inspiratory rales
17. Too little UVB radiation may lead to a lack of vitamin D. Too much UVB radiation may lead to direct DNA damage, sunburn, and skin cancer. An appropriate amount of UVB leads to a limited amount of direct DNA damage. This is recognized and repaired by the body, then melanin production is increased, which leads to a long-lasting tan. This tan occurs with a 2-day lag phase after irradiation
18. When inflammation overwhelms the host, systemic inflammatory response syndrome is diagnosed. When it is due to infection, the term sepsis is applied, with the terms bacteremia being applied specifically for bacterial sepsis and viremia specifically to viral sepsis. Vasodilation and organ dysfunction are serious problems associated with widespread infection that may lead to septic shock and death
19. Most cases of acute bronchitis are caused by viruses, therefore antibiotics are not generally recommended as they are only effective against bacteria. Using antibiotics in cases of viral bronchitis promotes the development of antibiotic-resistant bacteria, which may lead to greater morbidity and mortality. However, even in cases of viral bronchitis, antibiotics may be indicated in certain cases in order to prevent the occurrence of secondary bacterial infections
20. It is thought to originate from neuroendocrine cells in the bronchus called Feyrter cells (named for Friedrich Feyrter) . Hence, they express a variety of neuroendocrine markers, and may lead to ectopic production of hormones like ADH and ACTH that may result in paraneoplastic syndromes and Cushing's syndrome. Approximately half of all individuals diagnosed with Lambert-Eaton myasthenic syndrome (LEMS) will eventually be found to have a small-cell carcinoma of the lung
21. Although the convulsions caused by central nervous system oxygen toxicity may lead to incidental injury to the victim, it remained uncertain for many years whether damage to the nervous system following the seizure could occur and several studies searched for evidence of such damage. An overview of these studies by Bitterman in 2004 concluded that following removal of breathing gas containing high fractions of oxygen, no long-term neurological damage from the seizure remains
22. Epiglottitis commonly affects children, and it is associated with fever, difficulty in swallowing, drooling, hoarseness of voice, and typically stridor. Stridor is a sign of upper airways obstruction and is a surgical emergency. The child often appears acutely ill, anxious, and has very quiet shallow breathing with the head held forward, insisting on sitting up in bed. The early symptoms are insidious but rapidly progressive, and swelling of the throat may lead to cyanosis and asphyxiation
23. Prostate cancer screening is an attempt to find unsuspected cancers, and may lead to more invasive follow-up tests such as a biopsy, with cell samples taken for closer study. Options include the digital rectal exam and the prostate-specific antigen (PSA) blood test. Such screening is controversial and, in some people, may lead to unnecessary, possibly harmful, consequences. Routine screening with either a DRE or PSA is not supported by the evidence as there is no mortality benefit from screening
24. All patients with empyema require outpatient follow-up with a repeat chest X-ray and inflammatory biochemistry analysis within 4 weeks following discharge. Chest radiograph returns to normal in the majority of patients by 6 months. Patients should of course be advised to return sooner if symptoms redevelop. Long-term sequelae of pleural empyema are rare but include bronchopleural fistula formation, recurrent empyema and pleural thickening, which may lead to functional lung impairment needing surgical decortication
25. Acceptance of a theory does not require that all of its major predictions be tested, if it is already supported by sufficiently strong evidence. For example, certain tests may be unfeasible or technically difficult. As a result, theories may make predictions that have not yet been confirmed or proven incorrect; in this case, the predicted results may be described informally with the term "theoretical." These predictions can be tested at a later time, and if they are incorrect, this may lead to revision or rejection of the theory
26. Cor pulmonale may lead to congestive heart failure, with worsening of respiration due to pulmonary edema, swelling of the legs due to peripheral edema and painful congestive hepatomegaly (enlargement of the liver due to tissue damage as explained in the Complications section. This situation requires diuretics (to decrease strain on the heart), sometimes nitrates (to improve blood flow), phosphodiesterase inhibitors such as sildenafil or tadalafil and occasionally inotropes (to improve heart contractility) . CHF is a negative prognostic indicator in cor pulmonale
27. Pinyin assigns some Latin letters sound values which are quite different from that of most languages. This has drawn some criticism as it may lead to confusion when uninformed speakers apply either native or English assumed pronunciations to words. However this is not a specific problem of pinyin, since many languages that use the Latin alphabet natively assign different values to the same letters. A recent study on Chinese writing and literacy concluded, "By and large, Pinyin represents the Chinese sounds better than the Wade-Giles system, and does so with fewer extra marks."
28. Central nervous system oxygen toxicity can cause seizures, brief periods of rigidity followed by convulsions and unconsciousness, and is of concern to divers who encounter greater than atmospheric pressures. Pulmonary oxygen toxicity results in damage to the lungs, causing pain and difficulty in breathing. Oxidative damage to the eye may lead to myopia or partial detachment of the retina. Pulmonary and ocular damage are most likely to occur when supplemental oxygen is administered as part of a treatment, particularly to newborn infants, but are also a concern during hyperbaric oxygen therapy
29. At the end[original research?] of the project, quality assurance plays a significant role. Testers start work once anything is playable. This may be one level or subset of the game software that can be used to any reasonable extent. Early on, testing a game occupies a relatively small amount of time. Testers may work on several games at once. As development draws to a close, a single game usually employs many testers full-time. They strive to test new features and regression test existing ones. Testing is vital for modern, complex games as single changes may lead to catastrophic consequences
30. A 2009 review found that the evidence supporting the effectiveness of zinc is mixed with respect to cough, and a 2011 Cochrane review concluded that zinc "administered within 24 hours of onset of symptoms reduces the duration and severity of the common cold in healthy people". A 2003 review concluded: "Clinical trial data support the value of zinc in reducing the duration and severity of symptoms of the common cold when administered within 24 hours of the onset of common cold symptoms." Nasally applied zinc gel may lead to long-term or permanent loss of smell. The FDA therefore discourages its use
31. At the beginning of the disc there is a table of contents, which stores the start positions of the various tracks, as well as meta information about them and free blocks. Unlike the conventional cassette, a recorded song does not need to be stored as one piece on the disk, it can be stored in several fragments, similar to a hard drive. Early MiniDisc equipment had a fragment granularity of 4 seconds audio. Fragments smaller than the granularity are not kept track of, which may lead to the usable capacity of a disc actually shrinking. Also, no means of defragmenting the disc are provided in consumer grade equipment
32. The former type of study is purely descriptive and cannot be used to make inferences about the general population of patients with that disease. These types of studies, in which an astute clinician identifies an unusual feature of a disease or a patient's history, may lead to formulation of a new hypothesis. Using the data from the series, analytic studies could be done to investigate possible causal factors. These can include case control studies or prospective studies. A case control study would involve matching comparable controls without the disease to the cases in the series. A prospective study would involve following the case series over time to evaluate the disease's natural history
33. Abnormalities in the level of fats in the blood stream, whether too high or too low levels of lipids in the organism. Hypercholesterolemia: elevated LDL cholesterol, reduced HDL cholesterol, elevated triglycerides, clogged arteries leading to high blood pressure, heart attacks and strokes, build up of fat in other body organs, lumps of fat in the skin (lipomas and other fatty tumors), excessive weight gain (which may lead to obesity), inability to lose weight even while dieting, sluggish metabolism, protuberant abdomen (pot belly), cellulite, fatty liver, and a roll of fat around the upper abdomen (liver roll) etc. Or too low levels of lipids: hypocholesterolemia: low total cholesterol, low LDL and VLDL cholesterol, low triglyderides
34. Most commonly seen in infants and young children, retropharyngeal abscess is an abscess located in the tissues in the back of the throat behind the posterior pharyngeal wall (the retropharyngeal space) . Because RPA's typically occur in deep tissue, they are difficult to diagnose by physical examination alone. RPA is a relatively uncommon illness, and therefore may not receive early diagnosis in children presenting with stiff neck, malaise, difficulty swallowing, or other symptoms listed below. Early diagnosis is key, while a delay in diagnosis and treatment may lead to death. Parapharyngeal space communicates with retropharyngeal space and an infection of retropharyngeal space can pass down behind the oesophagus into mediastinum. RPA's can also occur in adults of any age
35. Due to the path followed by the video and Hi-Fi audio heads being striped and discontinuousâ€"unlike that of the linear audio trackâ€"head-switching is required to provide a continuous audio signal. While the video signal can easily hide the head-switching point in the invisible vertical retrace section of the signal, so that the exact switching point is not very important, the same is obviously not possible with a continuous audio signal that has no inaudible sections. Hi-Fi audio is thus dependent on a much more exact alignment of the head switching point than is required for non-HiFi VHS machines. Misalignments may lead to imperfect joining of the signal, resulting in low-pitched buzzing. The problem is known as "head chatter", and tends to increase as the audio heads wear down
36. Local symptoms may occur due to the mass of the tumor or its ulceration. For example, mass effects from lung cancer can cause blockage of the bronchus resulting in cough or pneumonia; esophageal cancer can cause narrowing of the esophagus, making it difficult or painful to swallow; and colorectal cancer may lead to narrowing or blockages in the bowel, resulting in changes in bowel habits. Masses of breast or testicles may be easily felt. Ulceration can cause bleeding which, if it occurs in the lung, will lead to coughing up blood, in the bowels to anemia or rectal bleeding, in the bladder to blood in the urine, and in the uterus to vaginal bleeding. Although localized pain may occur in advanced cancer, the initial swelling is usually painless. Some cancers can cause build up of fluid within the chest or abdomen
37. A third gain in cognitive ability involves thinking about thinking itself, a process referred to as metacognition. It often involves monitoring one's own cognitive activity during the thinking process. Adolescents ' improvements in knowledge of their own thinking patterns lead to better self-control and more effective studying. It is also relevant in social cognition, resulting in increased introspection, self-consciousness, and intellectualization. Adolescents are much better able than children to understand that people do not have complete control over their mental activity. Being able to introspect may lead totwo forms of adolescent egocentrism, which results in two distinct problems in thinking: the imaginary audience and the personal fable. These likely peak at age fifteen, along with self-consciousness in general
38. Sarcoidosis, also called sarcoid, Besnier-Boeck disease or Besnier-Boeck-Schaumann disease, is a syndrome involving abnormal collections of chronic inflammatory cells (granulomas) that can form as nodules in multiple organs. The granulomas that appear are usually not of the caseating variety and are most often located in the lungs or the lymph nodes, but virtually any organ can be affected. Onset is usually gradual. Sarcoidosis may be asymptomatic or chronic. It commonly improves or clears up spontaneously. More than two-thirds of people with lung sarcoidosis have no symptoms after 9 years. About 50% have relapses. About 10% develop serious disability. Lung scarring or infection may lead to respiratory failure and death. In chronic cases, symptoms may fluctuate over many years. The causes of sarcoidosis are not completely understood
39. A tropical cyclone can cease to have tropical characteristics in several different ways. One such way is if it moves over land, thus depriving it of the warm water it needs to power itself, quickly losing strength. Most strong storms lose their strength very rapidly after landfall and become disorganized areas of low pressure within a day or two, or evolve into extratropical cyclones. There is a chance a tropical cyclone could regenerate if it managed to get back over open warm water, such as with Hurricane Ivan. If it remains over mountains for even a short time, weakening will accelerate. Many storm fatalities occur in mountainous terrain, when diminishing cyclones unleash their moisture as torrential rainfall. This may lead to deadly floods and mudslides, as was the case with Hurricane Mitch in 1998. Without warm surface water, the storm cannot survive

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