1.Therapeutic Impact on Quality of Life in Adult Patients With Chronic Intestinal Pseudo-obstruction: A Multicenter, Cohort Study
Kota TAKAHASHI ; Takaomi KESSOKU ; Hidenori OHKUBO ; Yo ISHIHARA ; Kosuke TANAKA ; Tomoki OGATA ; Tsumugi JONO ; Atsushi YAMAMOTO ; Anna OZAKI ; Yuki KASAI ; Michihiro IWAKI ; Akiko FUYUKI ; Takayuki KATO ; Yasunari SAKAMOTO ; Takeo KURIHASHI ; Hirotoshi EBINUMA ; Atsushi NAKAJIMA
Journal of Neurogastroenterology and Motility 2026;32(2):244-253
Background/Aims:
To evaluate the quality of life (QOL) of patients with chronic intestinal pseudo-obstruction (CIPO) before and after treatment.
Methods:
This study enrolled 50 adult patients diagnosed with CIPO at 4 institutions, of whom 42 underwent therapy.Patient background, body mass index, treatment, palliative care intervention, numerical rating scale for abdominal pain or bloating, the medical outcomes study 36-item short-form health survey (SF-36) and summary scores (physical component summary, mental component summary, and role/social component summary), Japanese version of the Patient Assessment of Constipation Quality of Life (JPAC-QOL) and subscales (physical discomfort, psychosocial discomfort, worries and concerns, and satisfaction), and Patient Assessment of Constipation Symptoms (PAC-SYM) and subscales (stool, rectal, and abdominal symptoms) were prospectively sampled and collected.
Results:
The patients (n = 50; 35 females and 15 males) had an average age of onset of 44.7 years and, body mass index of 17.3 kg/m², and 38 (76%) required palliative care intervention. Effective therapeutic interventions included intestinal sterilization (19/42), decompression therapy with percutaneous endoscopic gastrojejunostomy (PEG-J) (6/42), and dietary restriction (6/42). The numerical rating scale for abdominal distension and pain decreased significantly after treatment. All SF-36 summary scores showed improvements. The JPAC-QOL and PAC-SYM both showed improvement overall and in all subscales.
Conclusions
Patients with CIPO have a lower physical, psychological and social QOL, which is equivalent to or lower than that of adult patients with inflammatory bowel disease or psychiatric disorders. Sterilization of the intestinal tract and PEG-J decompression effectively improve the QOL of patients.
2.Effects of speech duration and voice volume on the respiratory aerosol particle concentration.
Tomoki TAKANO ; Yiming XIANG ; Masayuki OGATA ; Yoshihide YAMAMOTO ; Satoshi HORI ; Shin-Ichi TANABE
Environmental Health and Preventive Medicine 2025;30():14-14
BACKGROUND:
SARS-CoV-2 (COVID-19) is transmitted via infectious respiratory particles. Infectious respiratory particles are released when an infected person breathes, coughs, or speaks. Several studies have measured respiratory particle concentrations through focusing on activities such as breathing, coughing, and short speech. However, few studies have investigated the effect of speech duration.
METHODS:
This study aimed to clarify the effects of speech duration and volume on the respiratory particle concentration. Study participants were requested to speak at three voice volumes across five speech durations, generating 15 speech patterns. Participants spoke inside a clean booth where particle concentrations and voice volumes were measured and analyzed during speech.
RESULTS:
Our findings suggest that as speech duration increased, the aerosol number concentration also increased. Through focusing on individual differences, we considered there might be super-emitters who emit more aerosol particles than the average human. Two participants were identified as statistical outliers (aerosol number concentration, n = 1; mass concentration, n = 1).
CONCLUSIONS
Considering speech duration may improve our understanding of respiratory particle concentration dynamics. Two participants were identified as potential super-emitters.
Humans
;
Male
;
Speech/physiology*
;
Adult
;
Female
;
COVID-19/transmission*
;
Respiratory Aerosols and Droplets
;
Voice
;
SARS-CoV-2
;
Time Factors
;
Young Adult
;
Aerosols/analysis*
3.The Prevalence and Characteristics of Symptomatic Uncomplicated Diverticular Disease Among Asian Patients With Unexplained Abdominal Symptoms
Tsumugi JONO ; Yuki KASAI ; Takaomi KESSOKU ; Tomoki OGATA ; Kosuke TANAKA ; Tsutomu YOSHIHARA ; Noboru MISAWA ; Shingo KATO ; Takuma HIGURASHI ; Kunihiro HOSONO ; Masato YONEDA ; Kosuke SEITA ; Takayuki KATO ; Eiji SAKAI ; Takeo KURIHASHI ; Machiko NAKATOGAWA ; Shunsuke OYAMADA ; Seiji FUTAGAMI ; Kok-Ann GWEE ; Atsushi NAKAJIMA
Journal of Neurogastroenterology and Motility 2024;30(1):87-96
Background/Aims:
The precise incidence of symptomatic uncomplicated diverticular disease (SUDD) and its effects on the quality of life (QOL) remain unclear, particularly in Asian patients with right-sided SUDD. We assess the prevalence of SUDD and its impact on QOL in a real-world population.
Methods:
Five institutional cohorts of patients who received outpatient treatment for unexplained abdominal symptoms from January 15, 2020 to March 31, 2022, were included. All patients underwent colonoscopy. SUDD was defined as the presence of recurrent abdominal symptoms, particularly pain in the lower right or left quadrant lasting > 24 hours in patients with diverticulosis at the site of pain. The 36-item short-form health survey was used to assess QOL.
Results:
Diverticula were identified in 108 of 361 patients. Among these 108 patients, 31% had SUDD, which was right-sided in 39% of cases.Of the 50 patients with right-sided diverticula, 36% had SUDD, as did 15 of 35 patients with left-sided diverticula (43%). Among the 33 patients with SUDD, diverticula were right-sided, left-sided, and bilateral in 39%, 45%, and 15% of patients, respectively. Diarrhea was more frequent in the SUDD group than in the non-SUDD group. Patients with SUDD had significantly lower physical, mental, and role/social component scores than those without SUDD.
Conclusions
It is important to recognize that patients with SUDD account for as high as 31% of outpatients with unexplained abdominal symptoms; these patients have diarrhea and a low QOL. The presence of right-sided SUDD was characteristic of Asian patients.

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