Keisuke Kamada
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View article: High COVID-19 vaccine uptake among HIV-positive smokers in Japan: effects of the health belief model - a single-center survey
High COVID-19 vaccine uptake among HIV-positive smokers in Japan: effects of the health belief model - a single-center survey Open
Background The effectiveness of vaccination against coronavirus disease 2019 (COVID-19) among people living with HIV (PLWH) has been increasingly documented in recent years. Large-scale cohort studies from Canada have demonstrated that COV…
View article: Clinical Characteristics of Extrapulmonary Nontuberculous Mycobacterial Diseases in Japanese Adult Patients without HIV: A Multicenter Retrospective Study
Clinical Characteristics of Extrapulmonary Nontuberculous Mycobacterial Diseases in Japanese Adult Patients without HIV: A Multicenter Retrospective Study Open
Most extrapulmonary NTM cases respond to antimicrobial therapy and source control. RGM infections involving prosthetic devices without source control remain challenging, warranting further research into optimized management.
View article: Deficiency of p27<sup>kip1</sup>, a Cyclin-Dependent Kinase Inhibitor, Accelerates Topical Elastase/3-Aminopropionitrile Fumarate Salt-Induced Abdominal Aortic Aneurysm Development in Mice
Deficiency of p27<sup>kip1</sup>, a Cyclin-Dependent Kinase Inhibitor, Accelerates Topical Elastase/3-Aminopropionitrile Fumarate Salt-Induced Abdominal Aortic Aneurysm Development in Mice Open
Introduction: Abdominal aortic aneurysm (AAA) is a multifactorial disease with limited identification of contributing genetic factors. p27kip, also known as CDKN1B, is a cell cycle inhibitor that regulates vascular smooth muscle cells (VSM…
View article: Disaster-associated Venous Thromboembolism Countermeasures in Japan: Insights from Past Major Earthquakes
Disaster-associated Venous Thromboembolism Countermeasures in Japan: Insights from Past Major Earthquakes Open
Japan experiences more than 1000 perceptible earthquakes annually, including major events such as the 2011 Great East Japan Earthquake and the 1995 Great Hanshin-Awaji Earthquake. These events lead to a documented increase in cardiovascula…
View article: Impact of Limb Severity on Great Saphenous Vein Wall Structure and Its Involvement in Vein Graft Patency
Impact of Limb Severity on Great Saphenous Vein Wall Structure and Its Involvement in Vein Graft Patency Open
View article: ABS0312 EFFICACY OF AVACOPAN AS INDUCTION THERAPY IN ANCA-ASSOCIATED VASCULITIS: A JAPANESE MULTICENTER COHORT STUDY (J-CANVAS STUDY)
ABS0312 EFFICACY OF AVACOPAN AS INDUCTION THERAPY IN ANCA-ASSOCIATED VASCULITIS: A JAPANESE MULTICENTER COHORT STUDY (J-CANVAS STUDY) Open
View article: The Approach to Venous Thromboembolism Prevention During Large Disaster Medicine of the Japanese Society of Phlebology Disaster Countermeasures Committee
The Approach to Venous Thromboembolism Prevention During Large Disaster Medicine of the Japanese Society of Phlebology Disaster Countermeasures Committee Open
View article: Clinical Features of Acute on Chronic Lower Limb Ischemia and the Importance of Underlying Arterial Disease for Revascularization
Clinical Features of Acute on Chronic Lower Limb Ischemia and the Importance of Underlying Arterial Disease for Revascularization Open
AoCLI had more complex and multi-segment arterial lesions, making limb perfusion restoration difficult. The unfavorable factors for EVT could help stratify the optimal treatment of ALI in emergency settings.
View article: Risk factors, molecular analysis and treatment outcomes of amikacin-resistant <i>Mycobacterium avium</i> complex pulmonary disease
Risk factors, molecular analysis and treatment outcomes of amikacin-resistant <i>Mycobacterium avium</i> complex pulmonary disease Open
Background Although the incidence of amikacin (AMK)-resistant Mycobacterium avium complex (MAC) pulmonary disease (PD) is suspected to have increased, limited data are available on AMK-resistant MAC-PD. This study evaluated the risk factor…
View article: Combined Arterial Reconstruction and Surgical Distal Venous Arterialization for Limb Salvage in Thromboangiitis Obliterans: A Case Report.
Combined Arterial Reconstruction and Surgical Distal Venous Arterialization for Limb Salvage in Thromboangiitis Obliterans: A Case Report. Open
Preoperatively planned surgical DVA, in conjunction with sympathetic modulation and timely postoperative intervention, may offer a durable limb salvage strategy in advanced TAO with limited distal targets.
View article: Interval Skin Necrosis in the Infrapopliteal Segment after Successful Distal Bypass Grafting in a Patient with Chronic Limb-Threatening Ischemia Complicated by Rheumatoid Arthritis Receiving Long-Term Corticosteroid Therapy
Interval Skin Necrosis in the Infrapopliteal Segment after Successful Distal Bypass Grafting in a Patient with Chronic Limb-Threatening Ischemia Complicated by Rheumatoid Arthritis Receiving Long-Term Corticosteroid Therapy Open
A 76-year-old woman with rheumatoid arthritis receiving long-term corticosteroid therapy, who underwent bilateral femoro-inframalleolar bypasses, suffered from interval skin necrosis in both lower legs after vein harvest in the contralater…
View article: Abdominal Compartment Syndrome Following Endovascular Aneurysm Repair for Ruptured Abdominal Aortic Aneurysm: A Challenging Case
Abdominal Compartment Syndrome Following Endovascular Aneurysm Repair for Ruptured Abdominal Aortic Aneurysm: A Challenging Case Open
ACS following EVAR for rAAA significantly impacts patient prognosis. Specific techniques for abdominal closure, as described in this case, may help minimize the duration of OAM in challenging cases.
View article: Disseminated <i>Mycobacterium haemophilum</i> Infection in A Post-renal Transplant Patient with Re-exacerbation Due to Immune Reconstitution Syndrome
Disseminated <i>Mycobacterium haemophilum</i> Infection in A Post-renal Transplant Patient with Re-exacerbation Due to Immune Reconstitution Syndrome Open
Mycobacterium haemophilum is a non-tuberculous mycobacterium (NTM) that causes infections in immunocompromised patients and lymphadenitis in immunocompetent children. Currently, the appropriate antimicrobial regimen and duration of treatme…
View article: Genetic analysis of <i>Mycobacterium abscessus</i> reveals genomic diversity linked to global plasmid distribution
Genetic analysis of <i>Mycobacterium abscessus</i> reveals genomic diversity linked to global plasmid distribution Open
SUMMARY Genetic epidemiological analysis of mobile genetic elements, such as plasmids, has rarely been carried out in Mycobacterium abscessus, regardless of its usefulness in speculating the past contact between bacteria. In this study, th…
View article: <i>In vitro</i> effects of the new oral β-lactamase inhibitor xeruborbactam in combination with oral β-lactams against clinical <i>Mycobacterium abscessus</i> isolates
<i>In vitro</i> effects of the new oral β-lactamase inhibitor xeruborbactam in combination with oral β-lactams against clinical <i>Mycobacterium abscessus</i> isolates Open
Non-tuberculosis mycobacteria (NTM), particularly Mycobacterium abscessus subsp. abscessus ( M. abscessus ), are increasingly being recognized as etiological agents of NTM pulmonary disease. However, treatment options for M. abscessus are …
View article: A case of pseudo-Kaposi sarcoma with chronic limb-threatening ischemia
A case of pseudo-Kaposi sarcoma with chronic limb-threatening ischemia Open
Background Pseudo-Kaposi sarcoma (PKS) is a rare vascular proliferative disease, caused by arteriovenous malformation (AVM) and chronic venous insufficiency. The lesions are characterized by purple or reddish-brownish papules, plaques, and…
View article: Hypothermic circulatory arrest at 20 ℃ does not deteriorate coagulopathy compared to 28 ℃ in a pig model
Hypothermic circulatory arrest at 20 ℃ does not deteriorate coagulopathy compared to 28 ℃ in a pig model Open
View article: Knockout of P27Kip1 Accelerates Topical Elastase/3-aminopropionitrile Fumarate Salt-Induced Abdominal Aortic Aneurysm Rupture In Mice
Knockout of P27Kip1 Accelerates Topical Elastase/3-aminopropionitrile Fumarate Salt-Induced Abdominal Aortic Aneurysm Rupture In Mice Open
View article: Super-Elderly Case of Acute Lower Limb Ischemia Treated with Indigo Aspiration System in Japan
Super-Elderly Case of Acute Lower Limb Ischemia Treated with Indigo Aspiration System in Japan Open
The Indigo Aspiration System (Penumbra Ltd., Alameda, CA, USA), a catheter-based device intended for the endovascular removal of clots from peripheral arteries and veins, was launched in Japan to treat acute limb ischemia after the cessati…
View article: Utility of Duplex Ultrasound in the Diagnosis and Treatment of Functional Popliteal Artery Entrapment Syndrome
Utility of Duplex Ultrasound in the Diagnosis and Treatment of Functional Popliteal Artery Entrapment Syndrome Open
A 19-year-old female presented with intermittent claudication without anatomical abnormality in the popliteal fossa on magnetic resonance imaging and computed tomography. However, duplex ultrasound (DUS) showed compression of the popliteal…
View article: Aortic endograft infection by Mycobacterium abscessus subsp. massiliense with acquired clarithromycin resistance: a case report
Aortic endograft infection by Mycobacterium abscessus subsp. massiliense with acquired clarithromycin resistance: a case report Open
Background Mycobacterium abscessus subsp. massiliense (MMA) comprises a group of non-tuberculous, rapidly growing mycobacteria. Although MMA can cause pulmonary diseases, surgical site infections, and disseminated diseases, aortic endograf…
View article: Venous Screening Activities at the Site of Hokkaido East Iburi Earthquake: Report from the Result of Venous Screening in Preventive Awareness Activities
Venous Screening Activities at the Site of Hokkaido East Iburi Earthquake: Report from the Result of Venous Screening in Preventive Awareness Activities Open
After previous earthquakes, high prevalence of cardiovascular diseases including venous thromboembolism (VTE) has been reported. We performed venous screening at the site of Hokkaido East Iburi Earthquake which happened at 6th September 20…
View article: Associations of COVID-19 symptoms with omicron subvariants BA.2 and BA.5, host status, and clinical outcomes in Japan: a registry-based observational study
Associations of COVID-19 symptoms with omicron subvariants BA.2 and BA.5, host status, and clinical outcomes in Japan: a registry-based observational study Open
View article: Importance of Limb Severity on Primary Graft Patency of Ipsilateral Single Saphenous Vein Grafts for Lower Extremity Artery Bypass in Chromic Limb-threatening Ischemia
Importance of Limb Severity on Primary Graft Patency of Ipsilateral Single Saphenous Vein Grafts for Lower Extremity Artery Bypass in Chromic Limb-threatening Ischemia Open
View article: Impact of Hemodynamic Success of Revascularization Measured by Skin Perfusion Pressure on Wound Healing in Chronic Limb-threatening Ischemia
Impact of Hemodynamic Success of Revascularization Measured by Skin Perfusion Pressure on Wound Healing in Chronic Limb-threatening Ischemia Open
View article: <i>In Vitro</i> Synergistic Effects of Omadacycline with Other Antimicrobial Agents against Mycobacterium abscessus
<i>In Vitro</i> Synergistic Effects of Omadacycline with Other Antimicrobial Agents against Mycobacterium abscessus Open
The clinical importance of Mycobacterium abscessus species (MABS) infections has been increasing. However, the standard treatment regimens recommended in the current guidelines often result in unfavorable outcomes.
View article: Aortic endograft infection by Mycobacterium abscessus subsp. massiliense with acquired clarithromycin resistance is associated with unreported gene mutations: A case report
Aortic endograft infection by Mycobacterium abscessus subsp. massiliense with acquired clarithromycin resistance is associated with unreported gene mutations: A case report Open
Background Mycobacterium abscessus subsp. massiliense (MMA) comprises a group of non-tuberculous, rapidly growing mycobacteria. Although MMA can cause pulmonary diseases, surgical site infections, and disseminated diseases, aortic endograf…
View article: A Novel Graft Route by Passage under the Achilles Tendon in Paramalleolar Distal Bypass Using the Small Saphenous Vein
A Novel Graft Route by Passage under the Achilles Tendon in Paramalleolar Distal Bypass Using the Small Saphenous Vein Open
A 77-year-old man with diabetes presented to our hospital because of left toe gangrene, requiring infrapopliteal revascularization. The patient was on hemodialysis for renal dysfunction. The great saphenous veins had been used for a previo…
View article: Associations of COVID-19 Symptoms with Omicron Subvariants BA.2 and BA.5, Host Status, and Clinical Outcomes: A Registry-Based Observational Study in Sapporo, Japan
Associations of COVID-19 Symptoms with Omicron Subvariants BA.2 and BA.5, Host Status, and Clinical Outcomes: A Registry-Based Observational Study in Sapporo, Japan Open
Background Previous SARS-CoV-2 infection and vaccination, coupled to rapid evolution of SARS-CoV-2 variants, have modified COVID-19 clinical manifestations. We characterized clinical symptoms of COVID-19 individuals in omicron BA.2 and BA.…
View article: Stent Graft Migration Due to Structural Failure Nine Months After Thoracic Endovascular Aortic Repair Using Valiant Navion
Stent Graft Migration Due to Structural Failure Nine Months After Thoracic Endovascular Aortic Repair Using Valiant Navion Open
Stent graft migration is a relatively rare complication after TEVAR and associated with type I or III endoleak, which can result in serious outcomes. In this case, it was suspected that migration had occurred after TEVAR due to structural …