1.Bidirectional Crosstalk between Kidney and Lung.
Korean Journal of Medicine 2016;90(5):389-393
Data reported recently suggest that acute kidney injury (AKI) is a systemic disease that adversely affects the function of other organs-including the heart, lung, liver, brain and immune system-which is related to the high mortality rate of affected patients. Kidney and lung function are closely related in both health and disease. Data support deleterious bidirectional crosstalk between the lung and kidney. AKI is a common complication in patients with acute respiratory distress syndrome, and has been reported to exert adverse effects on the lungs. Mortality rates for AKI combined with acute lung injury (ALI) can be up to 80% in critically ill patients. Although AKI-associated ALI presents clinically as increased pulmonary edema, the mechanism of AKI-associated ALI extends beyond simple volume overload. Data from animal studies suggest that AKI-induced pulmonary edema is related to both cardiogenic edema (due to elevated hydrostatic pressure) and non-cardiogenic edema (due to pulmonary endothelial and epithelial cell injury caused by inflammation, oxidative stress, and apoptosis). ALI with mechanical ventilation causes a decline in renal hemodynamic function and apoptosis. Elucidation of the mechanisms of kidney-lung crosstalk would facilitate development of effective therapies and reduce the mortality rate of AKI combined with respiratory failure.
Acute Kidney Injury
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Acute Lung Injury
;
Animals
;
Apoptosis
;
Brain
;
Critical Illness
;
Edema
;
Epithelial Cells
;
Heart
;
Hemodynamics
;
Humans
;
Inflammation
;
Kidney*
;
Liver
;
Lung*
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Mortality
;
Oxidative Stress
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Pulmonary Edema
;
Respiration, Artificial
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Respiratory Distress Syndrome, Adult
;
Respiratory Insufficiency
2.Emotional and cognitive changes in chronic kidney disease
Duk-Soo KIM ; Seong-Wook KIM ; Hyo-Wook GIL
The Korean Journal of Internal Medicine 2022;37(3):489-501
Chronic kidney disease (CKD) leads to cognitive impairment and emotional changes. However, the precise mechanism underlying the crosstalk between the kidneys and the nervous system is not fully understood. Inflammation and cerebrovascular disease can influence the development of depression in CKD. CKD is one of the strongest risk factors for cognitive impairment. Moreover, cognitive impairment occurs in CKD as patients experience the dysregulation of several brain functional domains due to damage caused to multiple cortical regions and to subcortical modulatory neurons. The differences in structural brain changes between CKD and non-CKD dementia may be attributable to the different mechanisms that occur in CKD. The kidney and brain have similar anatomical vascular systems, which may be susceptible to traditional risk factors. Vascular factors are assumed to be involved in the development of cognitive impairment in patients with CKD. Vascular injury induces white matter lesions, silent infarction, and microbleeds. Uremic toxins may also be directly related to cognitive impairment in CKD. Many uremic toxins, such as indoxyl sulfate, are likely to have an impact on the central nervous system. Further studies are required to identify therapeutic targets to prevent changes in the brain in patients with CKD.
3.Retroperitoneal Sarcoma.
Tae Gil HEO ; Yang Won NAH ; Surk Hyo CHANG ; In Wook PAIK ; Hyucksang LEE
Journal of the Korean Surgical Society 1998;54(1):28-35
Soft-tissue sarcomas account for 1% of all solid tumors. Of these, less than 15% will occur in the retroperitoneum. Late diagnosis and large tumor size make retroperitoneal sarcomas difficult to resect. Resection with wide margins in all directions is rarely possible owing to proximity to vital structures. Radiation therapy is limited in dosage and, as with chemotherapy, has only been successful in a limited number of cases. These problems result in a poor prognosis. A series of patients with retroperitoneal sarcoma was reviewed with a focus on issues of surgical management and prognostic factors. A retrospective analysis of 12 patients with retroperitoneal sarcomas who had undergone operations at the Department of Surgery, Inje University Paik Hospital, Seoul, from 1980 through 1996 was performed. The mean age of the 10 adult patients was 51 years; the male-to-female ratio was 2:1. Eighty-three percent of the patients presented with an abdominal mass. The mean diameter of the tumors was 18.3 cm. Leimyosarcomas(33%) and liposarcomas(25%) comprised the majority of the histologic types. The tumor grades were I, II, and III in 3 cases each. Resection of the tumor was possible in 75%(9/12) of the cases, although 17% of the resections were incomplete. Resection of adjacent organs was required in 66% of the cases. The resectability rose from 60% in 80s to 86% in 90s, with no statistical significance, possibly due to the small number of cases in this series. There was no postoperative morbidity or mortality. Actuarial 1-, 3-, and 5-year survival rates after resection were 75%, 60%, and 30%, respectively. Four of the 7(57%) patients who underwent complete resections had recurrence 3 to 33 months after surgery; this was notable for grade II or III tumors only. Two patients with grade I tumors are alive 65 and 102 months respectively after complete resection and show no evidence of the disease. One patient who underwent an incomplete resection of the tumor died 50 months after the operation. Only the tumor grade was a significant prognostic factor(p=0.0207). In conclusion, a wide en-bloc resection of a retroperitoneal sarcoma with a clear margin in all directions is a prerequisite for long-term survival. Aggressive follow-up for the first 3 years after a complete resection of a high-grade tumor is justified.
Adult
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Delayed Diagnosis
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Mortality
;
Prognosis
;
Recurrence
;
Retrospective Studies
;
Sarcoma*
;
Seoul
;
Survival Rate
4.Erratum: A Case of Green Urine after Ingestion of Herbicides.
Yun Suk SHIM ; Hyo Wook GIL ; Jong Oh YANG ; Eun Young LEE ; Soo Hyun KIM ; Sae Yong HONG
The Korean Journal of Internal Medicine 2012;27(4):483-483
In this article, Table 1's data was given incorrectly. Metodopramide should be corrected as Metoclopramide.
5.Risk Factors to Predict Acute Respiratory Failure in Patients with Acute Pesticide Poisoning
Nam-Jun CHO ; Samel PARK ; Eun Young LEE ; Hyo-Wook GIL
Journal of The Korean Society of Clinical Toxicology 2020;18(2):116-122
Acute respiratory failure is an important risk factor for mortality in patients with acute pesticide poisoning. Therefore, it is necessary to investigate the risk factors to predict respiratory failure in these patients. This study retrospectively investigated the clinical features of respiratory failure among patients with acute pesticide poisoning requiring mechanical ventilation. This study included patients who were admitted with intentional poisoning by pesticide ingestion from January 2017 to December 2019. Paraquat intoxication was excluded. Among 469 patients with acute pesticide poisoning, 398 patients were enrolled in this study. The respiratory failure rate was 30.4%. The rate of respiratory failure according to the type of pesticide was carbamate (75.0%), organophosphate (52.6%), glufosinate (52.1%), glyphosate (23%), pyrethroid (8.9%), and others (17%). The mortality was 25.6% in the respiratory failure group. The risk factors for respiratory failure were old age, low body mass index, and ingestion of more than 300 mL. In conclusion, respiratory failure is a risk factor for mortality in pesticide poisoning. Old age, low body mass index, and ingestion of more than 300 mL are the risk factors for predicting respiratory failure.
6.Risk Factors to Predict Acute Respiratory Failure in Patients with Acute Pesticide Poisoning
Nam-Jun CHO ; Samel PARK ; Eun Young LEE ; Hyo-Wook GIL
Journal of The Korean Society of Clinical Toxicology 2020;18(2):116-122
Acute respiratory failure is an important risk factor for mortality in patients with acute pesticide poisoning. Therefore, it is necessary to investigate the risk factors to predict respiratory failure in these patients. This study retrospectively investigated the clinical features of respiratory failure among patients with acute pesticide poisoning requiring mechanical ventilation. This study included patients who were admitted with intentional poisoning by pesticide ingestion from January 2017 to December 2019. Paraquat intoxication was excluded. Among 469 patients with acute pesticide poisoning, 398 patients were enrolled in this study. The respiratory failure rate was 30.4%. The rate of respiratory failure according to the type of pesticide was carbamate (75.0%), organophosphate (52.6%), glufosinate (52.1%), glyphosate (23%), pyrethroid (8.9%), and others (17%). The mortality was 25.6% in the respiratory failure group. The risk factors for respiratory failure were old age, low body mass index, and ingestion of more than 300 mL. In conclusion, respiratory failure is a risk factor for mortality in pesticide poisoning. Old age, low body mass index, and ingestion of more than 300 mL are the risk factors for predicting respiratory failure.
7.In Vitro Cytotoxic Effect of Glyphosate Mixture Containing Surfactants.
Ho Yeon SONG ; Young Hee KIM ; Su Jin SEOK ; Hyo Wook GIL ; Sae Yong HONG
Journal of Korean Medical Science 2012;27(7):711-715
We investigated whether glyphosate influences the cellular toxicity of the surfactants TN-20 and LN-10 on the mouse fibroblast-like cells, alveolar epithelial cells, and a heart cell line. The cytotoxicity of TN-20 and LN-10 (0.4-100 microM), in the presence or absence of glyphosate was determined by assessing membrane integrity. TN-20 toxicity was significantly lower in the presence of 50 microM glyphosate for the fibroblast-like cell (6.25 microM; 3.9% +/- 3.4% vs -4.8% +/- 0.7%), for the alveolar cells (0.78 microM; 5.7% +/- 0.9% vs 0.1% +/- 0.6%), and for the heart cell line (25.0 microM; 7.9% +/- 3.0% vs 19.4% +/- 0.7%) compared to that of TN-20 alone. The cellular toxicity of LN-10 towards the fibroblast-like cells was found to be increased in the presence of 50 microM glyphosate when LN-10 concentrations of 50 microM (31.3% +/- 3.9% vs 19.2% +/- 0.9%) and 100 microM (62.1% +/- 3.4% vs 39.0% +/- 0.7%) were compared to that of LN-10 alone. These results suggest that the mixture toxicity may be a factor in glyphosate-surfactant toxicity in patients with acute glyphosate herbicide intoxication.
Animals
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Cell Line
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Cell Survival/drug effects
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Glycine/*analogs & derivatives/chemistry/toxicity
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Herbicides/chemistry/*toxicity
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Mice
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Polyethylene Glycols/*chemistry
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Surface-Active Agents/*chemistry
8.Long-Term Functional Outcome of Peripheral Neuropathy in Microscopic Polyangiitis with Poor Prognostic Factors: 3-Year Clinical Follow-up.
Hyung Geun OH ; Hyo Wook GIL ; Ji Hye LEE
Soonchunhyang Medical Science 2017;23(2):155-158
Microscopic polyangiitis (MPA) is a systemic small vessel vasculitis with few or no immune deposits and no granulomatous inflammation. Peripheral neuropathy occurs in approximately 20%–30% of patients with MPA. We report a case of a 66-year-old woman who presented with paresthesia and motor weakness of the extremities and rapidly progressive glomerulonephritis. She was later diagnosed with MPA based on the findings of positive perinuclear antineutrophil cytoplasmic antibody along with findings on kidney biopsy. Nerve conduction study showed symmetric sensorimotor polyneuropathy. We followed the patient for 3 years, and she showed good functional outcome after immune-modulating therapy although Five-Factor Score more than 2 at diagnosis.
Aged
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Antibodies, Antineutrophil Cytoplasmic
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Biopsy
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Diagnosis
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Extremities
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Female
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Follow-Up Studies*
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Glomerulonephritis
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Humans
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Inflammation
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Kidney
;
Microscopic Polyangiitis*
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Neural Conduction
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Paresthesia
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Peripheral Nervous System Diseases*
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Polyneuropathies
;
Vasculitis
9.Comparison of Families with and without a Suicide Prevention Plan Following a Suicidal Attempt by a Family Member.
Heung Don CHO ; Nam Young KIM ; Hyo Wook GIL ; Du Shin JEONG ; Sae Yong HONG
Journal of Korean Medical Science 2015;30(7):974-978
The frequency and extent of the existence of a familial suicide prevention plan may differ across cultures. The aim of this work was, therefore, to determine how common it was for families to develop a suicide prevention plan and to compare the main measures used by families with and without such a plan, after an attempt to commit suicide was made by a member of a family living in a rural area of Korea. On the basis of the presence or absence of a familial suicide prevention plan, we compared 50 recruited families that were divided into 2 groups, with Group A (31 families) employing a familial suicide prevention plan after a suicide attempt by a family member, and Group B (19 families) not doing so. The strategy that was employed most frequently to prevent a reoccurrence among both populations was promoting communication among family members, followed by seeking psychological counseling and/or psychiatric treatment. Contrary to our expectation, the economic burden from medical treatment after a suicide attempt did not influence the establishment of a familial suicide prevention plan. It is a pressing social issue that 38% (19 of 50) of families in this study did not employ a familial suicide prevention plan, even after a family member had attempted suicide. Regional suicide prevention centers and/or health authorities should pay particular attention to these patients and their families.
Family
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Female
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Hospitalization/*economics
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Humans
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Male
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Middle Aged
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Patient Care Planning/*statistics & numerical data
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Republic of Korea
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Risk Factors
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Suicide, Attempted/*prevention & control
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Surveys and Questionnaires
10.Glufosinate Herbicide Intoxication Causing Unconsciousness, Convulsion, and 6th Cranial Nerve Palsy.
Jae Seok PARK ; Soo Jung KWAK ; Hyo Wook GIL ; So Young KIM ; Sae Yong HONG
Journal of Korean Medical Science 2013;28(11):1687-1689
Although glufosinate ammonium herbicides are considered safe when used properly, ingestion of the undiluted form can cause grave outcomes. Recently, we treated a 34-yr-old man who ingested glufosinate ammonium herbicide. In the course of treatment, the patient developed apnea, mental deterioration, and sixth cranial nerve palsy; he has since been discharged with full recovery after intensive care. This case report describes the clinical features of glufosinate intoxication with a focus on sixth cranial nerve palsy. Our observation suggests that neurologic manifestations after ingestion of a "low-grade toxicity herbicide" are variable and more complex than that was previously considered.
Abducens Nerve Diseases/*chemically induced/drug therapy
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Adult
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Aminobutyrates/*poisoning
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Enzyme Inhibitors/poisoning
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Herbicides/*poisoning
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Humans
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Male
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Seizures/chemically induced
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Surface-Active Agents/poisoning
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Unconsciousness/chemically induced