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Li Liu Sheng
Nephrology
About me
Master, chief physician, deputy director of nephrology, master supervisor. Presided over and participated in 3 research projects, presided over a project that won the second prize of scientific and technological progress in Yichang City, won a third prize, published 26 papers in core journal magazines, and contributed to the compilation of a monograph "Urology". Member of the Hubei Biomedical Dialysis Engineering Society, youth member of the Hubei Nephrology Society, member of the Yichang Kidney Disease Quality Control Center.
Proficient in diseases
There is unique experience in the diagnosis and treatment of various chronic kidney diseases, including renal biopsy, central venous catheter placement, peritoneal dialysis, hemodialysis, etc.
Voices
What are the symptoms of kidney cancer metastasis to the lungs?
Kidney cancer tumor cells are particularly prone to metastasis, with the lungs being one of the common sites for metastases. Once lung metastasis occurs in patients with kidney cancer, numerous symptoms can appear. Typical symptoms include coughing, scanty sputum, severe irritating dry cough, palpitations, chest tightness, shortness of breath, and even chest pain, as well as coughing up blood or severe hemoptysis. Therefore, patients with lung metastases from kidney cancer who exhibit these symptoms should seek medical attention promptly and undergo a lung CT scan. Additionally, patients may experience an increase in body temperature, fevers, weight loss, dizziness, anemia, and particularly fatigue. There may also be a loss of appetite and a general feeling of weakness, which should draw the patients' attention.
Should people with hydronephrosis avoid certain foods?
Although there are many causes leading to hydronephrosis in patients, most hydronephrosis is related to stones, meaning that hydronephrosis occurs in patients due to ureteral kidney stones. Therefore, dietary restrictions are necessary for patients with hydronephrosis in daily life. If the hydronephrosis is caused by calcium oxalate stones, patients should avoid consuming foods that are high in calcium and oxalates, such as nuts, legumes, spinach, and beets. If the hydronephrosis is due to the formation of uric acid stones, patients should also avoid consuming excessive amounts of animal organs, such as pork liver and kidneys, avoid seafood, and try not to drink beer, as these contain a high amount of purines, which can easily lead to stone formation. Additionally, if patients with hydronephrosis also have renal insufficiency, they should follow a low-salt diet and avoid consuming particularly salty foods, including various pickles, etc.
Can acute nephritis be cured completely?
The main cause of acute nephritis is related to streptococcal infections. Many patients with acute nephritis often have a history of infections in the throat, upper respiratory tract, or skin before the onset of the disease. Therefore, once acute nephritis occurs, patients often exhibit hematuria, which can be either gross hematuria or microscopic hematuria. Severe cases of acute nephritis may also show swelling of the eyelids and face, as well as the presence of mild to moderate urinary protein. In addition, some severe cases of acute nephritis also show elevated blood pressure, decreased renal function, and overall poor outcomes from acute nephritis. Currently, there are no specific treatments available; the main approach is bed rest and symptomatic treatment. For example, diuretics can be used if there is edema, and antihypertensive drugs can be used if there is a need to lower blood pressure. If an infection still exists, antibiotics are used for treatment. With proper and standardized treatment, the vast majority of acute nephritis cases can be completely cured without recurrence.
Causes of Uremia
Uremia is a syndrome caused by the progressive development of various chronic kidney diseases that ultimately leads to bilateral renal failure in patients, unable to timely remove excess water, electrolytes, and various toxins from the body. The causes of uremia are many and complex. Common causes include chronic nephritis, diabetic nephropathy, and hypertensive nephropathy. Other diseases such as chronic interstitial nephritis, chronic pyelonephritis, uric acid nephropathy, chronic obstructive nephropathy, renal vascular diseases, and hereditary nephritis can also lead to uremia. Once uremia occurs, patients often exhibit symptoms of general discomfort and may need to choose dialysis treatment, which can be either hemodialysis or peritoneal dialysis, depending on individual circumstances.
Does uremia cause fever in its early stages?
Fever is not an early clinical manifestation in patients with uremia; therefore, patients in the early stages of uremia do not exhibit fever. Typically, in the early stages of uremia, patients only show symptoms such as fatigue, poor spirit, lack of appetite, and easy fatigue, and may experience edema, such as swelling of the eyes and facial area after waking up in the morning, making it difficult for patients to open their eyes, and swelling of the lower limbs. In addition, patients also exhibit high blood pressure, such as increased systolic and diastolic pressures, which are difficult to control. Patients often exhibit clinical symptoms such as dizziness and headache. Patients also experience a significant increase in the frequency of urination at night and an increase in urine output, which are all early manifestations of uremia.
Is hydronephrosis of both kidneys serious?
Clinically, bilateral hydronephrosis is serious, as it can lead to expansion of the renal pelvis. Long-term bilateral hydronephrosis can compress the renal parenchyma, leading to the development of chronic obstructive nephropathy, and thus cause chronic renal failure. Additionally, because urine cannot be expelled from the body in a timely manner in bilateral hydronephrosis, it is easy to combine with bacterial infections, which can lead to acute pyelonephritis. Patients may experience chills, fever, and severe back pain, as well as hematuria and general fatigue. Therefore, it is essential to identify the cause of bilateral hydronephrosis and treat it based on the nature of the hydronephrosis. Usually, the causes of bilateral hydronephrosis are related to stones, but tumorous diseases, bladder stones, or urethral strictures are also common causes.
How is acute nephritis diagnosed?
The diagnosis of acute nephritis is actually not difficult, focusing on the following key points: 1. A history of upper respiratory or skin infections prior to the onset of the disease. 2. Typical manifestations of acute nephritis syndrome, including hematuria, proteinuria, reduced urine output, edema, and elevated blood pressure. Among these, hematuria is the most important basis for diagnosing acute nephritis, which can be gross hematuria or microscopic hematuria, and proteinuria can be mild or severe. 3. During the acute phase, there can be an increase in anti-O and a decrease in serum complement C3 concentration. 4. It commonly affects adolescents and children. 5. Most cases improve or even recover after four to eight weeks of treatment.
What are the symptoms of kidney cancer?
Kidney cancer is a common tumor in urological surgery, and a typical symptom in patients with kidney cancer is the appearance of hematuria. The characteristic of this hematuria is that it is painless visible hematuria throughout the course. Initially, the severity of the hematuria is relatively mild, occurring intermittently. However, over time, the hematuria gradually worsens, and the intervals shorten, even leading to significant bleeding. Another symptom of kidney cancer is back pain, which is caused by the increased size of the tumor pulling on the kidney, causing pain. When the tumor presses, it can also lead to severe back pain. A mass is another common symptom of kidney cancer; when a mass is felt on one side of the upper abdomen or back and moves up and down with respiration, it is generally indicative of the late stages of kidney cancer. Therefore, the typical symptoms of kidney cancer are hematuria, pain, and a mass.
How to reduce swelling in the feet caused by nephrotic syndrome?
Swelling of the feet is a common phenomenon in nephrotic syndrome. Once swelling occurs, patients feel uncomfortable symptoms and a sensation of heaviness in their feet, so corresponding de-swelling treatment is necessary. How to reduce swelling? Firstly, a low-salt diet is essential to control salt intake, with daily salt consumption around 2 to 3 grams. In addition to this, small doses of diuretics such as hydrochlorothiazide and spironolactone can be used. If the diuretic effect is not satisfactory, other more potent diuretics like furosemide may be added. Of course, the fundamental treatment for foot swelling in nephrotic syndrome involves the use of steroids and immunosuppressants. This treatment works by suppressing the permeability of the glomerular basement membrane and reducing protein leakage, thereby ultimately eliminating the foot swelling.
How long does acute nephritis require bed rest?
Acute nephritis is commonly seen in children. Once acute nephritis occurs, the main clinical manifestations in patients typically include hematuria, which can be visible or microscopic. It is also accompanied by varying degrees of edema, elevated blood pressure, and even transient renal failure. As for how long patients with acute nephritis need to stay in bed, current studies suggest a minimum of 2-3 weeks of bed rest. If the patient’s hematuria disappears, urinary protein decreases, and edema subsides, they can gradually start moving out of bed. If the condition remains stable, activities can shift from indoors to outdoors. However, if visible hematuria reoccurs, or if edema reappears after activity, it is necessary to continue bed rest for another 4-6 weeks. Therefore, students suffering from acute nephritis often need to take a leave of absence from school and should be closely monitored for changes in their condition under a doctor's guidance.